EP3182216B1 - Coupled timepiece oscillators - Google Patents
Coupled timepiece oscillators Download PDFInfo
- Publication number
- EP3182216B1 EP3182216B1 EP15201032.8A EP15201032A EP3182216B1 EP 3182216 B1 EP3182216 B1 EP 3182216B1 EP 15201032 A EP15201032 A EP 15201032A EP 3182216 B1 EP3182216 B1 EP 3182216B1
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- EP
- European Patent Office
- Prior art keywords
- wheel set
- oscillator
- return means
- elastic return
- oscillator mechanism
- 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.)
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- 230000007246 mechanism Effects 0.000 claims description 39
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims 2
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 238000004804 winding Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
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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
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/063—Balance construction
-
- 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
- G04B17/06—Oscillators with hairsprings, e.g. balance
-
- 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/066—Manufacture of the spiral spring
-
- 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
- G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
- G04B17/222—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature with balances
-
- 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
- G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses
-
- 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
- G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
-
- 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
- G04B17/045—Oscillators acting by spring tension with oscillating blade springs
Definitions
- the invention relates to an isochronous clock oscillator mechanism with coupled oscillators, consisting solely of a first oscillator comprising a first elastic return means fixed on the one hand to a fixed structure at the level of at least one first anchor and secondly to a first mobile pivoting about a first axis, and a second oscillator comprising a second elastic return means fixed to a second mobile, wherein said first oscillator and said second oscillator are coupled to one another by mechanical connection by said second elastic return means which is fixed to said first mobile, wherein said first oscillator is spiral-balance type and wherein said first elastic return means is a first spiral spring fixed to said fixed structure by a first pin constituting said first anchor, wherein said second oscillator is spiral-spring type and said second elastic return means is a second I spring spiral fixed to said second mobile.
- the invention also relates to a watch movement comprising at least one such oscillator mechanism.
- the invention also relates to a watch comprising such a movement.
- the invention relates to the field of clock oscillator mechanisms, and motion control.
- the document EP2365403 in the name of SEAGULL describes an oscillator for a mechanical timepiece comprising a first balance freely rotating about an axis; and a spiral spring connecting this first balance to a fixed point or to a second balance, this spiral spring comprising: a first winding of turns connected to the first balance and a second winding connected to the fixed point or the second balance, and a transition section connecting the first winding to the second winding, wherein a substantially linear restoring torque for at least one balance is essentially provided by the elastic deformation of the transition section and the windings to produce an oscillatory movement for at least one balance.
- the document CH709281 on behalf of THE SWATCH GROUP RESEARCH & DEVELOPMENT describes a forced oscillation resonator arranged to oscillate at a natural frequency and comprising on the one hand at least one oscillating member and on the other hand oscillation maintenance means arranged to exert a torque on this oscillating member, which carries at least one oscillating regulating device whose natural frequency is a control frequency which is between 0.9 times and 1.1 times an integer multiple of the natural frequency of said resonator mechanism, this integer being greater than or equal to 2.
- the regulator device comprises, mounted pivotally on the oscillating member, at least one secondary balance spring with an eccentric unbalance relative to the secondary pivoting axis about which pivots the secondary balance-spring.
- the document EP112633 in the name of SEIKO discloses a mechanical timepiece comprising a main spring supplying the source of mechanical time of the power supply, and a rotation angle control mechanism constituted such that, in a state in which the spring is fully armed, the air resistance is applied to the rotation of the rocker recoiled by a spiral spring, and, in a state in which the spring is completely disarmed, the resistance of the air is not applied to the rotation balance with spring spiral.
- the document CH699081 on behalf of THE SWATCH GROUP RESEARCH & DEVELOPMENT describes a resonator resulting from the coupling of a first low frequency resonator with a second higher frequency resonator, where the first resonator has a first mass of inertia associated with a first spring, the second resonator comprises a second mass of inertia associated with a second spring, and wherein a third spring is disposed between the first and second masses of inertia to couple the first and second resonators.
- the document WO2016 / 037717 in the name of ETA MANUFACTURE HORLOGERE SUISSE describes a regulator comprising, mounted mobile at least pivotally relative to a plate, an escape 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 regulator further comprises a second oscillator with a second rigid structure connected to the first rigid structure by second elastic return means, which are arranged to allow a movement of pivoting the second rigid structure relative to the first rigid structure.
- This second structure comprises guiding means arranged to cooperate with complementary guiding means that includes the escape wheel, together forming a motion transmission means for synchronizing the first oscillator and the second oscillator with the gear train.
- the invention proposes to define simplified coupled oscillators, which make it possible to obtain a good stability of the modes, and whose realization is easy.
- the invention thus relates to an isochronous clock oscillator mechanism with coupled oscillators according to claim 1.
- the invention also relates to a watch movement comprising at least one such oscillator mechanism.
- the invention also relates to a watch comprising such a movement.
- the invention relates to an isochronous clock oscillator mechanism with coupled oscillators, which is realized very simply, by the combination of only two primary oscillators: this oscillator mechanism 100 consists of only a first oscillator 10 and a second oscillator 20.
- the first oscillator 10 comprises a first elastic return means 11, which is fixed on the one hand to a fixed structure 1 at at least one first anchor 12, and on the other hand to a first mobile 13 pivoting around a first axis D1.
- the second oscillator 20 comprises a second resilient return means 21 fixed to a second mobile 23.
- the first oscillator 10 and the second oscillator 20 are coupled to each other by aerodynamic connection between the first mobile 13 and the second mobile 23 and / or by mechanical connection by the second resilient return means 21 which is then fixed to the first mobile 13.
- the first oscillator 10 and the second oscillator 20 are coupled to one another by mechanical connection by the second elastic return means 21 which is then fixed to the first mobile 13.
- first elastic return means 11 is unique
- second elastic return means 21 is unique
- first oscillator 10 and the second oscillator 20 are coupled to each other, both by aerodynamic connection between the first mobile 13 and the second mobile 23, and by mechanical connection by the second elastic return means 21 which is fixed to the first mobile 13.
- the second elastic return means 21 is an elastic flexible guide with thin blades.
- the first oscillator 10 is of the spiral-balance type
- the first elastic return means 11 is a first spiral spring fixed to the fixed structure 1 by a first stud constituting the first anchor 12.
- the second oscillator 20 is also of balance spring type
- the second elastic return means 21 is a second spiral spring fixed to the second mobile 23.
- the first resilient biasing means 11, or / and the second resilient biasing means 21 is a thin elastic blade, or the like.
- the second hairspring 21 is fixed, on the one hand to the serge or to an arm of the first mobile 13 in a second pin 22, and other share the second mobile 23 which pivots about a second axis D2. And the maintenance of the oscillator mechanism 100 is done on only one of the first mobile 13 or second mobile 23.
- oscillation maintenance is performed independently on each of the two primary oscillators 10 and 20.
- the stiffness of the second elastic return means 21 is less than half the stiffness of the first elastic return means 11.
- the stiffness of the second elastic return means 21 is between 0.30 and 0.40 times the stiffness of the first elastic return means 11.
- the inertia of the second mobile 23 is less than one third of the inertia of the first mobile 13.
- the inertia of the second mobile 23 is between 0.20 and 0.30 times the inertia of the first mobile 13.
- the first mobile 13 and the second mobile 23 are pendulums.
- the first mobile 13 or the second mobile 23 is a cage of a vortex or a carousel, and the second mobile 23 or respectively the first mobile 13 is a pendulum.
- the rocker constituting the second mobile 23 or respectively the first mobile 13 is coaxial with the cage of the vortex or carousel constituting the first mobile 13 or respectively the second mobile 23, and is rotated in the cage.
- the second stud 22 of the second oscillator 20 is attached to an arm or the drum of the cage.
- the maintenance of the oscillator mechanism 100 is performed by an anchor 3 or a detent cooperating with a small plate attached to the vortex or carousel at its pivot axis.
- the minimum distance G between large-diameter parts, in particular the parts of larger diameters, of the first mobile 13 and the second mobile 23 is less than 0.5 mm.
- This aerodynamic coupling is favorable, even when a main coupling is effected by the second elastic return means 21, because this aerodynamic coupling tends to stabilize the oscillator mechanism 100 on only one of the two modes (in phase or in phase opposition). Aerodynamic coupling exists even with discontinuous surfaces, for example between arms 4 of a vortex or carousel cage on the one hand, and a balance rod 5 on the other hand.
- the oscillator mechanism 100 comprises means for varying this distance between the first mobile 13 and the second mobile 23, preferably in the range 0.1-0.5 mm.
- the figure 5 is a diagram roughly illustrating the pace that can take the phase shift curve as a function of time, showing that at a certain value, especially near 0.5 mm, the phase shift comes to stabilize at a substantially constant value.
- a certain duration ⁇ T of transient regime is necessary before reaching stabilization, for example of the order of 200 seconds for an oscillator consisting of two classic clockwise spiral balances, beating at 3 Hz, where the pendulums are coplanar and 0.5 mm apart.
- the second mobile 23 and the first mobile 13 are coaxial.
- the second mobile 23 is, at least in projection, inside the first mobile 13.
- the larger diameter portions of the first mobile 13 and the second mobile 23, which are positioned on two different stages, are substantially the same diameter and substantially opposite one another.
- the second elastic return means 21 is a second spiral which extends over two floors.
- the second mobile 23 and the first mobile 13 are positioned side by side and substantially coplanar.
- the figure 9 shows an embodiment not included in the invention with an aerodynamic coupling with washers or balls, or the like, arranged between two rockers.
- This solution is also applicable to a variant of the solution of the figure 8 , with a third mobile positioned between the two pendulums. More particularly, at least a third mobile is introduced between the larger diameter portions of the first mobile 13 and the second mobile 23, the third mobile having only the freedom to pivot on itself or to slide in a direction orthogonal to the right which defines the minimum distance between the parts of larger diameters of the first mobile 13 and said second mobile 23. More particularly, the third mobile is fixed to a third elastic return means independent of the first elastic return means and the second means of elastic return to define a third oscillator coupled by aerodynamic connection to the first oscillator 10 and the second oscillator 20.
- the invention also relates to a watch movement 200 comprising at least one such oscillator mechanism 100.
- the invention also relates to a watch 1000 comprising such a movement 200.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Electric Clocks (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Electromechanical Clocks (AREA)
- Micromachines (AREA)
Description
L'invention concerne un mécanisme oscillateur isochrone d'horlogerie à oscillateurs couplés, constitué d'uniquement un premier oscillateur comportant un premier moyen de rappel élastique fixé d'une part à une structure fixe au niveau d'au moins un premier ancrage et d'autre part à un premier mobile pivotant autour d'un premier axe, et d'un deuxième oscillateur comportant un deuxième moyen de rappel élastique fixé à un deuxième mobile, où ledit premier oscillateur et ledit deuxième oscillateur sont couplés l'un à l'autre, par liaison mécanique par ledit deuxième moyen de rappel élastique qui est fixé audit premier mobile, où ledit premier oscillateur est de type balancier-spiral et où ledit premier moyen de rappel élastique est un premier ressort spiral fixé à ladite structure fixe par un premier piton constituant ledit premier ancrage, où ledit deuxième oscillateur est de type balancier-spiral et où ledit deuxième moyen de rappel élastique est un deuxième ressort spiral fixé audit deuxième mobile.The invention relates to an isochronous clock oscillator mechanism with coupled oscillators, consisting solely of a first oscillator comprising a first elastic return means fixed on the one hand to a fixed structure at the level of at least one first anchor and secondly to a first mobile pivoting about a first axis, and a second oscillator comprising a second elastic return means fixed to a second mobile, wherein said first oscillator and said second oscillator are coupled to one another by mechanical connection by said second elastic return means which is fixed to said first mobile, wherein said first oscillator is spiral-balance type and wherein said first elastic return means is a first spiral spring fixed to said fixed structure by a first pin constituting said first anchor, wherein said second oscillator is spiral-spring type and said second elastic return means is a second I spring spiral fixed to said second mobile.
L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme oscillateur.The invention also relates to a watch movement comprising at least one such oscillator mechanism.
L'invention concerne encore une montre comportant un tel mouvement.The invention also relates to a watch comprising such a movement.
L'invention concerne le domaine des mécanismes oscillateurs d'horlogerie, et de la régulation de mouvement.The invention relates to the field of clock oscillator mechanisms, and motion control.
La théorie de couplage des oscillateurs est toujours séduisante, mais contrariée dans sa mise en oeuvre pratique par des phénomènes d'instabilité.The oscillator coupling theory is always attractive, but thwarted in its practical implementation by phenomena of instability.
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L'invention se propose de définir des oscillateurs couplés simplifiés, qui permettent d'obtenir une bonne stabilité des modes, et dont la réalisation soit aisée.The invention proposes to define simplified coupled oscillators, which make it possible to obtain a good stability of the modes, and whose realization is easy.
L'invention concerne ainsi un mécanisme oscillateur isochrone d'horlogerie à oscillateurs couplés selon la revendication 1.The invention thus relates to an isochronous clock oscillator mechanism with coupled oscillators according to
L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme oscillateur.The invention also relates to a watch movement comprising at least one such oscillator mechanism.
L'invention concerne encore une montre comportant un tel mouvement.The invention also relates to a watch comprising such a movement.
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, un mécanisme oscillateur à deux oscillateurs couplés, dont un premier comporte un premier moyen de rappel élastique fixé entre une structure et un premier mobile, sur lequel est fixé un deuxième moyen de rappel élastique fixé à son autre extrémité à un deuxième mobile en porte-à-faux, l'excitation étant faite au niveau du premier mobile seulement; - la
figure 2 représente, de façon similaire à lafigure 1 , le même mécanisme oscillateur, mais dont l'excitation est faite au niveau du deuxième mobile ; - la
figure 3 représente, de façon schématisée, et en vue en plan un mécanisme oscillateur à deux oscillateurs de type balancier-spiral couplés, dont un premier comporte un premier spiral fixé entre une structure et un premier balancier, lequel porte un piton de fixation d'un deuxième spiral du deuxième oscillateur, fixé à son autre extrémité à un deuxième balancier ; - la
figure 4 représente, de façon schématisée, et en vue de côté, un mécanisme oscillateur à deux oscillateurs de type balancier-spiral couplés, où les deux balanciers sont montés coaxiaux ; - la
figure 5 est un diagramme simplifié montrant l'obtention d'un certain déphasage, au bout d'un certain laps de temps, et la forme de la courbe de variation de déphasage, en fonction de l'espacement entre des mobiles couplés aérodynamiquement ; - les
figures 6 et 7 illustrent de façon schématisée le couplage aérodynamique entre les serges de deux balanciers coaxiaux, sensiblement de même diamètre et se faisant face frontalement sur lafigure 6 , et inclus l'un dans l'autre sur lafigure 7 ; - la
figure 8 montre un couplage aérodynamique entre deux balanciers très voisins l'un de l'autre, dans un agencement selon lafigure 3 ; - la
figure 9 montre un couplage aérodynamique avec des rondelles ou billes disposées entre deux balanciers agencés selon lafigure 7 ; - les
figures 10 à 14 sont différentes vues en perspective d'un même mécanisme comportant une structure fixe portant la spire externe d'un premier ressort-spiral dont la spire interne est attachée à la cage d'un tourbillon, lequel porte une première extrémité d'un deuxième ressort-spiral encore attaché à son autre extrémité à un balancier coaxial à cette cage ; - la
figure 15 est un schéma-blocs représentant une montre comportant un mouvement d'horlogerie comportant un tel mécanisme oscillateur à deux oscillateurs couplés.
- the
figure 1 schematically represents an oscillator mechanism with two coupled oscillators, a first of which comprises a first elastic return means fixed between a structure and a first mobile, on which is fixed a second elastic return means fixed at its other end to a second movable cantilever, the excitation being made at the first mobile only; - the
figure 2 represents, similarly to thefigure 1 the same oscillator mechanism, but whose excitation is made at the second mobile; - the
figure 3 schematically represents, in plan view, an oscillator mechanism with two oscillators of the coupled sprung-balance type, a first of which comprises a first spiral fixed between a structure and a first balance, which carries a fixing stud of a second spiral of the second oscillator, fixed at its other end to a second pendulum; - the
figure 4 schematically shows, in side view, an oscillator mechanism with two oscillators coupled sprung balance type, where the two rockers are mounted coaxial; - the
figure 5 is a simplified diagram showing the obtaining of a certain phase shift, after a certain lapse of time, and the shape of the curve of variation phase shift, as a function of the spacing between aerodynamically coupled mobiles; - the
Figures 6 and 7 schematically illustrate the aerodynamic coupling between the serges of two coaxial rockers, of substantially the same diameter and facing each other frontally on thefigure 6 , and included one in the other on thefigure 7 ; - the
figure 8 shows an aerodynamic coupling between two rockers very close to each other, in an arrangement according to thefigure 3 ; - the
figure 9 shows an aerodynamic coupling with washers or balls arranged between two balances arranged according to thefigure 7 ; - the
Figures 10 to 14 are different perspective views of the same mechanism comprising a fixed structure carrying the outer coil of a first spiral spring whose inner coil is attached to the cage of a vortex, which carries a first end of a second spring- spiral still attached at its other end to a rocker coaxial to this cage; - the
figure 15 is a block diagram representing a watch comprising a clockwork movement comprising such an oscillator mechanism with two coupled oscillators.
L'invention concerne un mécanisme oscillateur 100 isochrone d'horlogerie à oscillateurs couplés, qui est réalisé très simplement, par la combinaison de seulement deux oscillateurs primaires: ce mécanisme oscillateur 100 est constitué d'uniquement un premier oscillateur 10 et d'un deuxième oscillateur 20.The invention relates to an isochronous clock oscillator mechanism with coupled oscillators, which is realized very simply, by the combination of only two primary oscillators: this
Le premier oscillateur 10 comporte un premier moyen de rappel élastique 11, qui est fixé d'une part à une structure fixe 1 au niveau d'au moins un premier ancrage 12, et d'autre part à un premier mobile 13 pivotant autour d'un premier axe D1.The
Le deuxième oscillateur 20 comporte un deuxième moyen de rappel élastique 21 fixé à un deuxième mobile 23.The
Le premier oscillateur 10 et le deuxième oscillateur 20 sont couplés l'un à l'autre, par liaison aérodynamique entre le premier mobile 13 et le deuxième mobile 23 ou/et par liaison mécanique par le deuxième moyen de rappel élastique 21 qui est alors fixé au premier mobile 13.The
Plus particulièrement, selon l'invention, le premier oscillateur 10 et le deuxième oscillateur 20 sont couplés l'un à l'autre par liaison mécanique par le deuxième moyen de rappel élastique 21 qui est alors fixé au premier mobile 13.More particularly, according to the invention, the
De façon particulière, le premier moyen de rappel élastique 11 est unique, et le deuxième moyen de rappel élastique 21 est unique.In particular, the first elastic return means 11 is unique, and the second elastic return means 21 is unique.
Plus particulièrement, le premier oscillateur 10 et le deuxième oscillateur 20 sont couplés l'un à l'autre, à la fois par liaison aérodynamique entre le premier mobile 13 et le deuxième mobile 23, et par liaison mécanique par le deuxième moyen de rappel élastique 21 qui est fixé au premier mobile 13.More particularly, the
Dans une réalisation particulière de l'invention, le deuxième moyen de rappel élastique 21 est un guidage flexible élastique à lames minces.In a particular embodiment of the invention, the second elastic return means 21 is an elastic flexible guide with thin blades.
Dans un mode de réalisation particulier et non limitatif de l'invention, le premier oscillateur 10 est de type balancier-spiral, et le premier moyen de rappel élastique 11 est un premier ressort spiral fixé à la structure fixe 1 par un premier piton constituant le premier ancrage 12. Et le deuxième oscillateur 20 est aussi de type balancier-spiral, et le deuxième moyen de rappel élastique 21 est un deuxième ressort spiral fixé au deuxième mobile 23.In a particular and non-limiting embodiment of the invention, the
Dans d'autres modes de réalisation de l'invention, le premier moyen de rappel élastique 11, ou/et le deuxième moyen de rappel élastique 21 de couplage, est une lame élastique mince, ou similaire.In other embodiments of the invention, the first resilient biasing means 11, or / and the second resilient biasing means 21 is a thin elastic blade, or the like.
Dans une variante particulière de mode de réalisation comportant des ressorts spiraux, selon l'invention, le deuxième spiral 21 est fixé, d'une part à la serge ou à un bras du premier mobile 13 en un deuxième piton 22, et d'autre part au deuxième mobile 23 qui pivote autour d'un deuxième axe D2. Et l'entretien du mécanisme oscillateur 100 se fait sur un seul des premier mobile 13 ou deuxième mobile 23.In a particular variant of embodiment comprising spiral springs, according to the invention, the
Dans une autre réalisation non comprise dans l'invention, l'entretien des oscillations est effectué indépendamment sur chacun des deux oscillateurs primaires 10 et 20.In another embodiment not included in the invention, oscillation maintenance is performed independently on each of the two
Plus particulièrement, la raideur du deuxième moyen de rappel élastique 21 est inférieure à la moitié de la raideur du premier moyen de rappel élastique 11.More particularly, the stiffness of the second elastic return means 21 is less than half the stiffness of the first elastic return means 11.
Plus particulièrement encore, la raideur du deuxième moyen de rappel élastique 21 est comprise entre 0,30 et 0,40 fois la raideur du premier moyen de rappel élastique 11.More particularly still, the stiffness of the second elastic return means 21 is between 0.30 and 0.40 times the stiffness of the first elastic return means 11.
Plus particulièrement, l'inertie du deuxième mobile 23 est inférieure au tiers de l'inertie du premier mobile 13.More particularly, the inertia of the second mobile 23 is less than one third of the inertia of the first mobile 13.
Plus particulièrement encore, l'inertie du deuxième mobile 23 est comprise entre 0,20 et 0,30 fois l'inertie du premier mobile 13.More particularly, the inertia of the second mobile 23 is between 0.20 and 0.30 times the inertia of the
Dans une réalisation particulière, le premier mobile 13 et le deuxième mobile 23 sont des balanciers.In a particular embodiment, the first mobile 13 and the second mobile 23 are pendulums.
Dans une autre réalisation particulière, le premier mobile 13 ou le deuxième mobile 23 est une cage d'un tourbillon ou d'un carrousel, et le deuxième mobile 23 ou respectivement le premier mobile 13 est un balancier.In another particular embodiment, the first mobile 13 or the second mobile 23 is a cage of a vortex or a carousel, and the
Plus particulièrement, le balancier constituant le deuxième mobile 23 ou respectivement le premier mobile 13 est coaxial à la cage du tourbillon ou carrousel constituant le premier mobile 13 ou respectivement le deuxième mobile 23, et est pivoté dans la cage. Le deuxième piton 22 du deuxième oscillateur 20 est fixé à un bras ou au tambour de la cage. Et l'entretien du mécanisme oscillateur 100 est effectué par une ancre 3 ou une détente coopérant avec un petit plateau fixé au tourbillon ou carrousel au niveau de son axe de pivotement.More particularly, the rocker constituting the
Dans une réalisation particulière non comprise dans l'invention, et avantageuse pour permettre un couplage aérodynamique, la distance G minimale entre des parties de grand diamètre, notamment les parties de plus grands diamètres, du premier mobile 13 et du deuxième mobile 23 est inférieure à 0.5 mm. Ce couplage aérodynamique est favorable, même lorsqu'un couplage principal est effectué par le deuxième moyen de rappel élastique 21, car ce couplage aérodynamique tend à stabiliser le mécanisme oscillateur 100 sur un seul des deux modes (en phase ou en opposition de phase). Un couplage aérodynamique existe même avec des surfaces discontinues, par exemple entre des bras 4 d'une cage de tourbillon ou carrousel d'une part, et une serge 5 de balancier d'autre part.In a particular embodiment not included in the invention, and advantageous for allowing aerodynamic coupling, the minimum distance G between large-diameter parts, in particular the parts of larger diameters, of the first mobile 13 and the second mobile 23 is less than 0.5 mm. This aerodynamic coupling is favorable, even when a main coupling is effected by the second elastic return means 21, because this aerodynamic coupling tends to stabilize the
De façon avantageuse, le mécanisme oscillateur 100 comporte des moyens pour faire varier cette distance entre le premier mobile 13 et le deuxième mobile 23, de préférence dans la fourchette 0.1-0.5 mm.Advantageously, the
La
Dans une réalisation particulière, le deuxième mobile 23 et le premier mobile 13 sont coaxiaux.In a particular embodiment, the second mobile 23 and the first mobile 13 are coaxial.
Dans une autre réalisation particulière le deuxième mobile 23 est, au moins en projection, à l'intérieur du premier mobile 13.In another particular embodiment the second mobile 23 is, at least in projection, inside the first mobile 13.
Dans une autre réalisation particulière, les parties de plus grands diamètres du premier mobile 13 et du deuxième mobile 23, qui sont positionnés sur deux étages différents, sont sensiblement de même diamètre et sensiblement en face l'une de l'autre.In another particular embodiment, the larger diameter portions of the first mobile 13 and the second mobile 23, which are positioned on two different stages, are substantially the same diameter and substantially opposite one another.
Dans cette dernière variante, et sans une réalisation particulière, le deuxième moyen de rappel élastique 21 est un deuxième spiral qui s'étend sur deux étages.In this latter variant, and without a particular embodiment, the second elastic return means 21 is a second spiral which extends over two floors.
Dans une autre réalisation particulière encore, le deuxième mobile 23 et le premier mobile 13 sont positionnés côte à côte et sensiblement coplanaires.In yet another particular embodiment, the second mobile 23 and the first mobile 13 are positioned side by side and substantially coplanar.
La
L'introduction d'un ou plusieurs mobiles permet d'assurer la stabilisation du système des deux oscillateurs couplés dans le mode en anti-phase, qui a une fréquence plus élevée. Chacun de ces mobiles pouvant être connecté à un moyen de rappel élastique indépendant, imposant une oscillation régulière de ce mobile. Dans le cas de balanciers, une telle variante est réalisable dans une exécution de type MEMS ou similaire, en matériau micro-usinable, de type silicium ou autre, ayant des guidages flexibles intégrés.The introduction of one or more mobiles makes it possible to stabilize the system of the two oscillators coupled in the anti-phase mode, which has a higher frequency. Each of these mobiles can be connected to an independent elastic return means, imposing a regular oscillation of this mobile. In the case of rockers, such a variant is feasible in a type of MEMS execution or similar, of micro-machinable material, silicon type or otherwise, having integrated flexible guides.
L'invention concerne encore un mouvement d'horlogerie 200 comportant au moins un tel mécanisme oscillateur 100.The invention also relates to a
L'invention concerne encore une montre 1000 comportant un tel mouvement 200.The invention also relates to a
Claims (18)
- Isochronous timepiece oscillator mechanism (100) with coupled oscillators, formed solely by a first oscillator (10) comprising a first elastic return means (11) attached, on the one hand, to a fixed structure (1) at the level of at least one first anchoring (12) and, on the other hand, to a first wheel set (13) pivoting about a first axis (D1), and by a second oscillator (20) comprising a second elastic return means (21) attached to a second wheel set (23), whereby said first oscillator (10) and said second oscillator (20) are coupled to one another, by a mechanical link by said second elastic return means (21) which is attached to said first wheel set (13), whereby said first oscillator (10) is of the sprung balance type, and whereby said first elastic return means (11) is a first balance spring attached to said fixed structure (1) by a first stud constituting said first anchoring (12), whereby said second oscillator (20) is of the sprung balance type and whereby said second elastic return means (21) is a second balance spring attached to said second wheel set (23), said second balance spring (21) being attached, on the one hand to the felloe or to an arm of said first wheel set (13) in a second stud (22), and on the other hand to said second wheel set (23) which pivots about a second axis (D2), the maintenance of the oscillation of said oscillator mechanism (100) being carried out on only one of either said first wheel set (13) or said second wheel set (23).
- Oscillator mechanism (100) according to claim 1, characterised in that said first elastic return means (11) is unique, and in that said second elastic return means (21) is unique.
- Oscillator mechanism (100) according to either claim 1 or claim 2, characterised in that said second elastic return means (21) is a flexible elastic guide with thin strips.
- Oscillator mechanism (100) according to one of claims 1 to 3, characterised in that the stiffness of said second elastic return means (21) is less than half of the stiffness of said first elastic return means (11).
- Oscillator mechanism (100) according to claim 4, characterised in that the stiffness of said second elastic return means (21) lies in the range 0.30 to 0.40 times the stiffness of said first elastic return means (11).
- Oscillator mechanism (100) according to one of claims 1 to 5, characterised in that the inertia of said second wheel set (23) is less than one third of the inertia of said first wheel set (13).
- Oscillator mechanism (100) according to claim 6, characterised in that the inertia of said second wheel set (23) lies in the range 0.20 to 0.30 times the inertia of said first wheel set (13).
- Oscillator mechanism (100) according to one of claims 1 to 7, characterised in that said first wheel set (13) and said second wheel set (23) are balances.
- Oscillator mechanism (100) according to one of claims 1 to 7, characterised in that said first wheel set (13) or said second wheel set (23) is a carriage of a tourbillon or karussel, and in that said second wheel set (23) or respectively said first wheel set (13) is a balance.
- Oscillator mechanism (100) according to claim 9, characterised in that said balance forming said second wheel set (23) or respectively said first wheel set (13) is coaxial to the carriage of said tourbillon or karussel forming said first wheel set (13) or respectively said second wheel set (23), and pivoted in said carriage, in that said second stud (22) of said second oscillator (20) is attached to an arm or to the drum of said carriage, and in that the maintenance of the oscillation of said oscillator mechanism (100) is carried out by a pallet-lever or a detent engaging with a small roller attached to said tourbillon or karussel at the pivot axis thereof.
- Oscillator mechanism (100) according to one of claims 1 to 10, characterised in that the minimum distance between the parts of largest diameter of said first wheel set (13) and of said second wheel set (23) is less than 0.5 mm.
- Oscillator mechanism (100) according to one of claims 1 to 11, characterised in that said second wheel set (23) and said first wheel set (13) are coaxial.
- Oscillator mechanism (100) according to one of claims 1 to 12, characterised in that said second wheel set (23) at least projects inside said first wheel set (13).
- Oscillator mechanism (100) according to one of claims 1 to 12, characterised in that the parts of largest diameter of said first wheel set (13) and of said second wheel set (23), which are positioned on two different stages, have substantially the same diameter and are substantially facing one another.
- Oscillator mechanism (100) according to claim 14, characterised in that said second elastic return means (21) is a second balance spring that extends over two stages.
- Oscillator mechanism (100) according to one of claims 1 to 11, characterised in that said second wheel set (23) and said first wheel set (13) are positioned side by side and are substantially coplanar.
- Clock movement (200) comprising at least one oscillator mechanism (100) according to one of claims 1 to 16.
- Watch (1000) comprising a movement (200) according to claim 17.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15201032.8A EP3182216B1 (en) | 2015-12-18 | 2015-12-18 | Coupled timepiece oscillators |
CH01857/15A CH711928A2 (en) | 2015-12-18 | 2015-12-18 | Coupled clock oscillators. |
JP2016240127A JP6321765B2 (en) | 2015-12-18 | 2016-12-12 | Coupled oscillator for watches |
US15/377,404 US9958833B2 (en) | 2015-12-18 | 2016-12-13 | Coupled timepiece oscillators |
CN201611159453.4A CN106896699B (en) | 2015-12-18 | 2016-12-15 | The horological oscillator device of coupling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15201032.8A EP3182216B1 (en) | 2015-12-18 | 2015-12-18 | Coupled timepiece oscillators |
Publications (2)
Publication Number | Publication Date |
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EP3182216A1 EP3182216A1 (en) | 2017-06-21 |
EP3182216B1 true EP3182216B1 (en) | 2019-08-28 |
Family
ID=54850362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15201032.8A Active EP3182216B1 (en) | 2015-12-18 | 2015-12-18 | Coupled timepiece oscillators |
Country Status (5)
Country | Link |
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US (1) | US9958833B2 (en) |
EP (1) | EP3182216B1 (en) |
JP (1) | JP6321765B2 (en) |
CN (1) | CN106896699B (en) |
CH (1) | CH711928A2 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3382468B1 (en) * | 2017-03-30 | 2020-01-15 | The Swatch Group Research and Development Ltd | Movement with extension of running reserve |
EP3451076B1 (en) * | 2017-08-31 | 2020-07-29 | ETA SA Manufacture Horlogère Suisse | Stud-holder for a mechanical clockwork movement |
JP1624218S (en) * | 2017-12-21 | 2019-02-12 | ||
USD881058S1 (en) * | 2018-03-05 | 2020-04-14 | Montres Breguet S.A. | Escapement wheel |
CH714839A1 (en) * | 2018-03-27 | 2019-09-30 | Csem Centre Suisse Delectronique Et De Microtechnique Sa | Timepiece comprising a mechanical oscillator. |
EP3557335A1 (en) * | 2018-04-17 | 2019-10-23 | Dominique Renaud SA | Free direct escapement mechanism for timepiece part |
EP3561606B1 (en) * | 2018-04-27 | 2022-01-26 | The Swatch Group Research and Development Ltd | Shock protection of a leaf spring resonator with rcc pivot |
FR3094804B1 (en) | 2019-04-02 | 2021-10-22 | Vianney Halter | "Device for coupling two clockwork oscillators" |
EP3770693B1 (en) | 2019-07-23 | 2022-08-31 | Omega SA | Timepiece stop-cage mechanism with stop wheel |
EP3770694B1 (en) * | 2019-07-23 | 2021-12-08 | Omega SA | Timepiece stop-cage comprising two elastic stopping elements |
FR3107603B1 (en) * | 2020-02-26 | 2022-01-21 | Vianney Halter | “Tourbillon with two oscillators in a cage” |
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EP1126333A4 (en) * | 1999-07-29 | 2001-12-19 | Seiko Instr Inc | Mechanical timepiece with timed annular balance rotating angle control mechanism |
WO2006099882A1 (en) * | 2005-03-23 | 2006-09-28 | Marblia Ltd | Timepiece movement |
CH699081A2 (en) * | 2008-07-04 | 2010-01-15 | Swatch Group Res & Dev Ltd | High and low frequency resonator assembly for timepiece i.e. watch, has balance spring arranged between square inertial masses for coupling high and low frequency resonators, where inertial masses are constituted by respective balances |
DE602008006057D1 (en) * | 2008-07-04 | 2011-05-19 | Swatch Group Res & Dev Ltd | Coupled resonators for clock |
CH702062B1 (en) * | 2009-10-26 | 2022-01-31 | Mft Dhorlogerie Audemars Piguet Sa | Regulating organ comprising at least two pendulums, a watch movement as well as a timepiece comprising such an organ. |
HK1146455A2 (en) * | 2010-03-12 | 2011-06-03 | Microtechne Res & Dev Ct Ltd | An oscillator system |
EP2565730B1 (en) * | 2011-08-29 | 2017-11-01 | ETA SA Manufacture Horlogère Suisse | Clock escapement holder |
CH705494A2 (en) * | 2011-09-15 | 2013-03-15 | Swatch Group Res & Dev Ltd | Clock element for keyless watch, has wheel connected to another wheel by set of coupling units or rubber band for synchronizing oscillator or another oscillator using energy source |
EP2570869B1 (en) * | 2011-09-15 | 2016-04-06 | The Swatch Group Research and Development Ltd. | Timepiece with oscillators coupled in chronograph mode |
EP2874020B1 (en) * | 2013-11-15 | 2016-10-26 | Rolex Sa | Regulating system for a clock movement |
EP2908185B1 (en) * | 2014-02-17 | 2017-09-13 | The Swatch Group Research and Development Ltd. | Device for maintaining and adjusting a clock piece resonator |
CH709281A2 (en) * | 2014-02-17 | 2015-08-28 | Swatch Group Res & Dev Ltd | Clockwork resonator mechanism comprising an oscillating member carrying an oscillating regulator device. |
US9958832B2 (en) * | 2014-09-09 | 2018-05-01 | Eta Sa Manufacture Horlogere Suisse | Method for synchronization of two timepiece oscillators with one gear train |
-
2015
- 2015-12-18 CH CH01857/15A patent/CH711928A2/en not_active Application Discontinuation
- 2015-12-18 EP EP15201032.8A patent/EP3182216B1/en active Active
-
2016
- 2016-12-12 JP JP2016240127A patent/JP6321765B2/en active Active
- 2016-12-13 US US15/377,404 patent/US9958833B2/en active Active
- 2016-12-15 CN CN201611159453.4A patent/CN106896699B/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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CH711928A2 (en) | 2017-06-30 |
CN106896699B (en) | 2019-04-05 |
JP6321765B2 (en) | 2018-05-09 |
CN106896699A (en) | 2017-06-27 |
EP3182216A1 (en) | 2017-06-21 |
JP2017111138A (en) | 2017-06-22 |
US20170176939A1 (en) | 2017-06-22 |
US9958833B2 (en) | 2018-05-01 |
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