EP3182216B1 - Gekoppelte oszillatoren einer uhr - Google Patents

Gekoppelte oszillatoren einer uhr Download PDF

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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.)
Active
Application number
EP15201032.8A
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English (en)
French (fr)
Other versions
EP3182216A1 (de
Inventor
Davide Sarchi
Sebastián Alagón Carrillo
Alain Zaugg
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.)
Montres Breguet SA
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Montres Breguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to CH01857/15A priority Critical patent/CH711928A2/fr
Priority to EP15201032.8A priority patent/EP3182216B1/de
Priority to JP2016240127A priority patent/JP6321765B2/ja
Priority to US15/377,404 priority patent/US9958833B2/en
Priority to CN201611159453.4A priority patent/CN106896699B/zh
Publication of EP3182216A1 publication Critical patent/EP3182216A1/de
Application granted granted Critical
Publication of EP3182216B1 publication Critical patent/EP3182216B1/de
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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
    • 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)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Micromachines (AREA)

Claims (18)

  1. Isochroner Uhren-Schwingmechanismus (100) mit gekoppelten Oszillatoren, der ausschließlich gebildet ist aus einem ersten Oszillator (10), umfassend ein erstes elastisches Rückstellmittel (11), das einerseits an einer festen Struktur (1) an mindestens einer ersten Verankerung (12) und andererseits an einem ersten Drehteil (13), das um eine erste Achse (D1) schwenkt, befestigt ist, und aus einem zweiten Oszillator (20), umfassend ein zweites elastisches Rückstellmittel (21), das an einem zweiten Drehteil (23) befestigt ist, wobei der erste Oszillator (10) und der zweite Oszillator (20) über eine mechanische Verbindung durch das zweite an dem ersten Drehteil (13) befestigte elastische Rückstellmittel (21) miteinander gekoppelt sind, wobei der erste Oszillator (10) vom Typ Unruh-Spiralfeder ist und wobei das erste elastische Rückstellmittel (11) eine erste Spiralfeder ist, die an der festen Struktur (1) durch ein erstes die erste Verankerung (12) bildendes Spiralklötzchen befestigt ist, wobei der zweite Oszillator (20) vom Typ Unruh-Spiralfeder ist und wobei das zweite elastische Rückstellmittel (21) eine zweite Spiralfeder ist, die an dem zweiten Drehteil (23) befestigt ist, und die zweite Spirale (21) einerseits an dem Unruhreif oder an einem Arm des ersten Drehteils (13) an einem zweiten Spiralklötzchen (22) und andererseits an dem zweiten Drehteil (23), das um eine zweite Achse (D2) schwenkt, befestigt ist, und die Dauerschwingung des Schwingmechanismus (100) nur entweder an dem ersten Drehteil (13) oder an dem zweiten Drehteil (23) erfolgt.
  2. Schwingmechanismus (100) nach Anspruch 1, dadurch gekennzeichnet, dass das erste elastische Rückstellmittel (11) einzig ist und dass das zweite elastische Rückstellmittel (21) einzig ist.
  3. Schwingmechanismus (100) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das zweite elastische Rückstellmittel (21) eine elastische flexible Führung mit dünnen Plättchen ist.
  4. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Steifigkeit des zweiten elastischen Rückstellmittels (21) kleiner als die Hälfte der Steifigkeit des ersten elastischen Rückstellmittels (11) ist.
  5. Schwingmechanismus (100) nach Anspruch 4, dadurch gekennzeichnet, dass die Steifigkeit des zweiten elastischen Rückstellmittels (21) im Bereich des 0,30- bis 0,40-Fachen der Steifigkeit des ersten elastischen Rückstellmittels (11) liegt.
  6. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Trägheit des zweiten Drehteils (23) kleiner als ein Drittel der Trägheit des ersten Drehteils (13) ist.
  7. Schwingmechanismus (100) nach Anspruch 6, dadurch gekennzeichnet, dass die Trägheit des zweiten Drehteils (23) im Bereich des 0,20- bis 0,30-Fachen der Trägheit des ersten Drehteils (13) liegt.
  8. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das erste Drehteil (13) und das zweite Drehteil (23) jeweils eine Unruh sind.
  9. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das erste Drehteil (13) oder das zweite Drehteil (23) ein Gestell eines Tourbillon oder eines Karussells ist und dass das zweite Drehteil (23) bzw. das erste Drehteil (13) eine Unruh ist.
  10. Schwingmechanismus (100) nach Anspruch 9, dadurch gekennzeichnet, das die Unruh, die das zweite Drehteil (23) bzw. das erste Drehteil (13) bildet, koaxial ist zum Gestell des Tourbillon oder des Karussells, das das erste Drehteil (13) bzw. das zweite Drehteil (23) bildet, und in dem Gestell schwenkt, dass das zweite Spiralklötzchen (22) des zweiten Oszillators (20) an einem Arm oder einer Trommel des Gestells befestigt ist und dass die Dauerschwingung des Schwingmechanismus (100) durch einen Anker oder ein Gesperr erfolgt, der bzw. das mit einer an dem Tourbillon oder dem Karussell an seiner Drehachse befestigten kleinen Rolle zusammenwirkt.
  11. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der minimale Abstand zwischen den Teilen mit größtem Durchmesser des ersten Drehteils (13) und des zweiten Drehteils (23) kleiner als 0,5 mm ist.
  12. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das zweite Drehteil (23) und das erste Drehteil (13) koaxial sind.
  13. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass sich das zweite Drehteil (23) mindestens in einer Projektion innerhalb des ersten Drehteils (13) befindet.
  14. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Teile mit größtem Durchmesser des ersten Drehteils (13) und des zweiten Drehteils (23), die auf zwei verschiedenen Stufen positioniert sind, im Wesentlichen den gleichen Durchmesser haben und im Wesentlichen einander gegenüber liegen.
  15. Schwingmechanismus (100) nach Anspruch 14, dadurch gekennzeichnet, dass das zweite elastische Rückstellmittel (21) eine zweite Spirale ist, die sich über zwei Stufen erstreckt.
  16. Schwingmechanismus (100) nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das zweite Drehteil (23) und das erste Drehteil (13) nebeneinander und im Wesentlichen koplanar positioniert sind.
  17. Uhrwerk (200), umfassend mindestens einen Schwingmechanismus (100) nach einem der Ansprüche 1 bis 16.
  18. Uhr (1000), umfassend ein Werk (200) nach Anspruch 17.
EP15201032.8A 2015-12-18 2015-12-18 Gekoppelte oszillatoren einer uhr Active EP3182216B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH01857/15A CH711928A2 (fr) 2015-12-18 2015-12-18 Oscillateurs couplés d'horlogerie.
EP15201032.8A EP3182216B1 (de) 2015-12-18 2015-12-18 Gekoppelte oszillatoren einer uhr
JP2016240127A JP6321765B2 (ja) 2015-12-18 2016-12-12 時計用結合振動子
US15/377,404 US9958833B2 (en) 2015-12-18 2016-12-13 Coupled timepiece oscillators
CN201611159453.4A CN106896699B (zh) 2015-12-18 2016-12-15 耦合的钟表振荡器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15201032.8A EP3182216B1 (de) 2015-12-18 2015-12-18 Gekoppelte oszillatoren einer uhr

Publications (2)

Publication Number Publication Date
EP3182216A1 EP3182216A1 (de) 2017-06-21
EP3182216B1 true EP3182216B1 (de) 2019-08-28

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EP15201032.8A Active EP3182216B1 (de) 2015-12-18 2015-12-18 Gekoppelte oszillatoren einer uhr

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Country Link
US (1) US9958833B2 (de)
EP (1) EP3182216B1 (de)
JP (1) JP6321765B2 (de)
CN (1) CN106896699B (de)
CH (1) CH711928A2 (de)

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JP1624221S (de) * 2017-12-21 2019-02-12
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Also Published As

Publication number Publication date
US9958833B2 (en) 2018-05-01
EP3182216A1 (de) 2017-06-21
CN106896699A (zh) 2017-06-27
CH711928A2 (fr) 2017-06-30
US20170176939A1 (en) 2017-06-22
JP6321765B2 (ja) 2018-05-09
JP2017111138A (ja) 2017-06-22
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