EP3120198B1 - Uhrwerk - Google Patents

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Publication number
EP3120198B1
EP3120198B1 EP15710492.8A EP15710492A EP3120198B1 EP 3120198 B1 EP3120198 B1 EP 3120198B1 EP 15710492 A EP15710492 A EP 15710492A EP 3120198 B1 EP3120198 B1 EP 3120198B1
Authority
EP
European Patent Office
Prior art keywords
movement according
timepiece movement
arbor
torque
organs
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
EP15710492.8A
Other languages
English (en)
French (fr)
Other versions
EP3120198A2 (de
Inventor
Stephen Edward METHUEN FORSEY
Dylan ROTH
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.)
GFPI SA
Original Assignee
GFPI SA
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Filing date
Publication date
Application filed by GFPI SA filed Critical GFPI SA
Publication of EP3120198A2 publication Critical patent/EP3120198A2/de
Application granted granted Critical
Publication of EP3120198B1 publication Critical patent/EP3120198B1/de
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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
    • G04B15/00—Escapements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/007—Gearwork with differential work
    • G04B13/008—Differentials
    • 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

Definitions

  • the present invention relates to a timepiece movement, in particular for a mechanical wristwatch or a mechanical timepiece, comprising a plurality of organs regulating driven by a common energy source.
  • the differential gear comprises an input member, supplied with energy coming from a barrel or another equivalent source of energy, and two output members each driving a regulating member by means of an appropriate gear train. Thanks to the property of the differential gear that the speed of rotation of the input is equal to the average of the speeds of rotation of the outputs, the progress of these movements is determined by the average of the frequencies of oscillation of their organs regulating this. which gives them greater precision and stability than timepieces which have a single regulating body.
  • EP2141555 describes a timepiece comprising two resonators, each with an inertia mass and a return spring. The two masses of inertia are coupled together by a third spring. The coupling between the masses of inertia by means of a direct elastic bond, necessarily has a negative influence on the isochronism.
  • EP2570870 describes a timepiece with two anchor oscillators driven by a common barrel.
  • the two oscillators are driven by two cogs, the first of which is direct, while a wheel of the second cog is driven by a wheel of the first cog through an elastic device.
  • the document CH708658 discloses a timepiece movement with two regulating systems and a differential distributing the engine torque.
  • An object of the present invention is to provide a timepiece movement with the possibility of maintaining in oscillation a plurality of regulating organs, the progress of which is determined by the collective action of these regulating organs, without the drawbacks of known devices. .
  • a timepiece movement comprising: one or more sources of mechanical energy, at least two regulation assemblies, each regulation assembly comprising an exhaust and a regulating member; a torque sharing device, which does not include a differential, comprising at least as many elastic members as regulating assemblies with at least one input connected to the source or sources of mechanical energy, allowing the transmission of the energy produced by the source or by mechanical energy sources at regulating assemblies; each regulating assembly being driven by a respective elastic member provided in a respective kinematic chain before the exhaust mobile.
  • This solution has in particular the advantage compared to the prior art of allowing regular operation of the two regulating organs even in the presence of simultaneous pulses. In addition, it enables any number of regulating organs to operate.
  • a preferred variant of the invention relates to a timepiece movement having the above characteristics, in which said torque sharing device comprises a shaft driving the elastic members.
  • the elastic members may further comprise a center integral with the shaft and a peripheral end connected to an output wheel which is mounted freely on the shaft and which kinematically drives a regulation assembly.
  • the elastic elements comprise spiral springs, preferably pre-armed.
  • the movement of the invention may include multiplier cogs in each adjustment assembly, downstream of the torque sharing device, or a multiplier cog interposed between the barrel and the torque sharing device.
  • multiplier cogs in each adjustment assembly, downstream of the torque sharing device, or a multiplier cog interposed between the barrel and the torque sharing device.
  • the invention proposes a new way of placing two or more regulating members in a movement.
  • the movement may include a mobile element with a speed determined by the average of the speeds of the two adjustment assemblies.
  • the arrangement of the regulating members and of the respective cogs allows space saving and excellent energy efficiency.
  • the movement of the invention also includes display means driven by an independent counting train, and / or by a multiplier train or by the multiplier train sets.
  • the invention can be carried out with any kind of regulating system, whether it be conventional Swiss anchor escapements, tourbillons, or carousels. It is also possible to use detent exhausts, constant force devices, equalizers or any other known exhaust system.
  • the regulating members of the regulating assemblies of the invention need not necessarily be identical either, and preferably are not arranged in parallel so as to compensate for systematic errors due to gravity.
  • the frequencies of the oscillators can be different from each other.
  • the type of exhaust can be different from one regulating member to another in the same room.
  • the present invention also comprises a timepiece comprising a movement as mentioned above.
  • a possible embodiment of a movement according to the invention comprises a barrel 11 acting as a source of mechanical energy which drives the shaft 20 through the gear 24 and the pinion 22. It is quite obvious that, as required , the movement of the invention could have a plurality of barrels, or other suitable mechanical energy sources.
  • the pinion 22 could be replaced, without departing from the scope of the invention, by any other suitable transmission element.
  • the two coaxial output wheels 36, 38 are coupled to the shaft 20 via the elastic members 44, 46, as will be seen more clearly below, and transmit the energy of the barrel 11 to two regulating assemblies 61 , 67, each comprising, in this example, a gear train 8, respectively 16, and a regulating member.
  • the output wheels 36, 38 are mounted on barrels 33, 35 allowing their free rotation relative to the shaft 20 and are driven by spiral springs 44, 46, better visible on the figure 2 , a central core of which is integral with the shaft 20 and a peripheral end 48 is connected to an output wheel 36, 38 by a pin 50, 56.
  • the torque of the barrel is transmitted to the shaft 20 by the input pinion 22 and is shared between the two coaxial output wheels 36, 38. It is obvious that any type and any fixing means making it possible to make the central core and one of the peripheral ends 48 of the spiral springs integral can be expected.
  • the torque of the barrel is transmitted to a differential device and shared by the latter towards two output wheels.
  • the output wheels and the adjustment assemblies which they drive have rotation speeds whose average is equal to or proportional to the rotation speed of the barrel 11.
  • the figure 1 represents a movement with two output wheels and two adjustment assemblies 61, 67.
  • the invention however also includes variants with three or more adjustment assemblies.
  • the regulation assembly 61 includes a gear train 8 which is here represented schematically by two references, but which can assume any suitable form, followed by the escape wheel 5, the anchor 6, and a harmonic oscillator 62 which determines, by its natural frequency, the operation of the regulation assembly 61.
  • the regulation assembly is here represented with a balance-spring swiveling about a fixed axis, could also include a vortex or a carousel.
  • the regulating assembly 67 shown in the figure 1 has the same structure as the assembly 61. It comprises a gear train 16, an escape wheel 13, an anchor 14, and an oscillator 68 which determines its progress. It should however be understood that the invention is not limited to this exemplary embodiment, but also includes variants in which the two sets have different structures between them.
  • the figure 2 shows the shaft 20 on which the two output wheels 36, 38 rotate freely, and the spiral spring 44 driving the wheel 36, as explained above.
  • the spiral spring 44 could be pre-armed during assembly of the movement, or be armed only by the torque transmitted by the barrel 11.
  • the invention is however not limited to this embodiment, but also includes variants in which the spiral springs 44 and 46 are replaced by other elastic elements capable of storing mechanical energy coming from the barrel and of restoring it to the regulating assembly 61, respectively 67, as required.
  • the elastic members can be of any type of shape, for example sausage, blade, etc.
  • the spiral spring 44 provides a torque to the respective finishing train 8 by relaxing slightly.
  • the shaft 20 cannot fully follow the movement of the wheel 36 because it is retained by the wheel 38, stationary because the exhaust 14 is in the rest phase. It will then move by an angle equal to half the angle traveled by the wheel 36, slightly stiffening the spiral spring 46. It can be seen that the sum of the torques of the springs 44 and 46 is always equal and opposite to that acting on the pinion 22.
  • the driving force is supplied first by the spiral springs 44, 46 which are closer to the exhausts, before the shaft 20 starts to rotate.
  • the two wheels 36 and 38 advance by the same angle, and the springs 44 and 46 relax at the same time.
  • the shaft 20 then rotates until the balance torque is restored. In this way, the movement of the invention provides each escapement with the required driving force and avoids the couplings and the losses of amplitude which occur in the movements of the state of the art.
  • the shaft 20 rotates with a speed which is given by the average of the speeds of the wheels 36 and 38, both in the variants provided with a differential and not included in the invention, as in the mode of realization of the figure 1 that doesn't have one.
  • the spiral springs 44, 46 make it possible to decouple the step of the adjustment assemblies 61, 67 independently of the pulses of the other.
  • the course of the barrel 11 is determined by the combined action of the two regulating members, and its speed is proportional to the average between the speeds of the two regulating members, with an improvement in overall precision.
  • the angular speeds of the two output wheels 36 and 38 are not independent of each other, but can vary between them only for a limited period of time, and to the extent agreed by the elastic members 44 and 46.
  • the movement of the invention also includes a counting train and display devices making it possible to display the current time and / or the desired time indications.
  • this cog is independent and separated from the multiplier cogs 8 and 16. It can be driven directly by the barrel 11, the gear 24, the pinion 22, the shaft 20, or any other element appropriate, and rotates with a speed determined by the average of the speeds of the two sets of adjustment.
  • one end of the shaft 20 could directly lead to an indication, for example a minute hand, and also carry an hour cannon, driven by any suitable drive.
  • the multiplier cogs 8 and 16 can also be used for counting time and carry display devices providing indications.
  • the gear train could be interposed between the barrel 11 and the device sharing of torque 20. Consequently, the latter could therefore directly drive the pinions of the exhaust wheels 5 and 13.
  • the movement of the invention is not limited to two regulating members, but can have any number of adjustment assemblies, identical or different, preferably variously oriented in space, so as to eliminate the as much as possible the sources of systematic error due to the action of gravity.
  • the number of outputs of the torque sharing device can be multiplied by providing a cascade of differential devices.
  • the embodiment of the figure 1 allows a multiplication of the number of outputs simply by superimposing on the same axis 20 the desired number of output wheels and elastic members.
  • the elastic member need not necessarily be positioned between the main shaft 20 and the output wheel, but could also be integrated into the multiplier train or in any position, up to the exhaust, but preferably before.
  • the pinion 22 could be in the middle of the sharing device, between the barrels 33 and 35, or even at the other end of the shaft 20.
  • the hairspring and the output wheel could be replaced by a wheel integrating an elastic element, coaxial with the shaft 20 or in any position downstream of the latter, before the exhaust.
  • the invention is not limited to a single torque sharing device, but could include any number of sharing devices.
  • a watch movement could include a first sharing device constituted by a differential, classic or spherical, driving two shafts having the structure of the shaft 20 of the figure 1 : thus there would be in this case four regulating organs.
  • the invention could include, in variants, several elastic members per regulation assembly, for example two spiral springs working in opposition or in association.
  • the movement of the invention comprises a plurality of mechanical energy sources, for example two barrels 11 ', 11 "driving the shaft 20.
  • two references 24', 24" are respectively engaged with one of the barrels 11 ', 11' on the one hand, and with a pinion 22 ', 22 "secured to the shaft 20 on the other hand.
  • the pinions 22' and 22" could moreover be driven directly by the barrels 11 'and 11 ", or be driven at least medially by the same barrels 11' and 11", by any suitable transmission device, without departing from the scope of the invention as defined by the appended claims.
  • This arrangement makes it possible to increase the energy reserves, and consequently the operating time between two windings, while decreasing the contact force on the teeth of the pinions 22 ', 22 ".
  • the barrels and the cogs can be arranged on planes and at different angles to the plate and to the axis 20, which allows great flexibility in the design of the movement.
  • the balance springs 44 and 46 store part of the elastic energy supplied by the barrels and are able to supply it instantaneously when the respective exhausts fall. The dynamic behavior of the regulating organs which results therefrom is thus improved.
  • the figure 4 illustrates another variant in which the shaft comprises two coaxial half-shafts 20 ′ and 20 ", each of which can pivot independently of the other.
  • the half-shaft 20" has at one end a male end piece 25 intended to cooperate with the 'female element 27 made at the adjacent end of the other half-shaft, so that each barrel independently feeds a single train and a single regulating member.
  • the relative pivoting of the half-shafts by the two male and female end pieces 25, 27 allows a very simple and compact arrangement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Retarders (AREA)

Claims (14)

  1. Uhrwerk, umfassend:
    • eine oder mehrere Quellen mechanischer Energie (11),
    • mindestens zwei Reguliereinheiten (61, 67), wobei jede Reguliereinheit eine Hemmung (5, 6; 13, 14), ein Hemmungs-Drehteil (7, 12) und ein regulierendes Element (62, 68) umfasst;
    wobei das Werk außerdem umfasst
    • eine Drehmomentteilungsvorrichtung (40), die mindestens so viele elastische Elemente (44, 46) wie Reguliereinheiten (61, 67) aufweist, mit mindestens einem Eingang (22), der mit der Quelle oder den Quellen mechanischer Energie verbunden ist, die die Übertragung der von der Quelle oder den Quellen mechanischer Energie erzeugten Energie an die Reguliereinheiten (61, 67) erlaubt, wobei die Drehmomentteilungsvorrichtung (40) kein Differential aufweist;
    • wobei jede Reguliereinheit vom jeweiligen elastischen Element (44, 46) angetrieben wird, wobei jedes jeweilige elastische Element (44, 46) in einer jeweiligen kinematischen Kette vor dem jeweiligen Hemmungs-Drehteil (7, 12) vorgesehen ist.
  2. Uhrwerk nach dem vorhergehenden Anspruch, wobei die Drehmomentteilungsvorrichtung eine Welle (20) umfasst, die die elastischen Elemente (44, 46) antreibt.
  3. Uhrwerk nach Anspruch 2, wobei die elastischen Elemente je ein fest mit der Welle (20) verbundenes Zentrum und ein Aussenende (48) enthalten, das mit einem Ausgangsrad (36, 38) verbunden ist, das frei auf die Welle (20) montiert ist und das eine Reguliereinheit (61, 67) kinematisch antreibt.
  4. Uhrwerk nach dem vorhergehenden Anspruch, wobei die elastischen Elemente eine Spiralfeder aufweist, die optional vorgespannt ist.
  5. Uhrwerk nach einem der vorhergehenden Ansprüche, wobei die Reguliereinheiten ein Multiplikator-Räderwerk (8, 16) umfassen.
  6. Uhrwerk nach dem vorhergehenden Anspruch, wobei mindestens eines der Multiplikator-Räderwerke der Einheiten Anzeigeelemente antreibt.
  7. Uhrwerk nach Anspruch 6, das außerdem ein Zähler-Räderwerk unabhängig von den Multiplikator-Räderwerken der Reguliereinheiten umfasst.
  8. Uhrwerk nach einem der Ansprüche 1 bis 3, das ein Multiplikator-Räderwerk enthält, das zwischen jede Energiequelle (11) und die Drehmomentteilungsvorrichtung (20) angeordnet ist, wobei die Drehmomentteilungsvorrichtung die Hemmungen (5, 13) direkt antreibt.
  9. Uhrwerk nach einem der vorhergehenden Ansprüche, wobei die regulierenden Elemente der Reguliereinheiten mindestens ein Tourbillon und/oder ein Karussell und/oder eine Schweizer Ankerhemmung und/oder eine Chronometerhemmung und/oder eine Vorrichtung mit konstanter Kraft und/oder einen Zwischenaufzug (Remontoir d'egalite) enthalten.
  10. Uhrwerk nach einem der vorhergehenden Ansprüche, wobei die regulierenden Elemente der Reguliereinheiten nicht parallel angeordnet sind.
  11. Uhrwerk nach einem der vorhergehenden Ansprüche, wobei die eine oder die mehreren Quellen mechanischer Energie eine Vielzahl von Federgehäusen aufweisen.
  12. Uhrwerk nach einem der Ansprüche 3 bis 13, wobei die Drehmomentteilungsvorrichtung eine Welle (20) umfasst, die die elastischen Elemente (44, 46) antreibt, wobei das Werk mindestens zwei Federgehäuse (11', 11") aufweist, und wobei die Welle (20) mindestens zwei fest miteinander verbundene Triebe (22', 22") aufweist, wobei jedes der mindestens zwei Federgehäuse (11', 11") je einen jeweiligen Trieb (22', 22") antreibt.
  13. Uhrwerk nach dem vorhergehenden Anspruch, wobei die Welle eine erste Halbwelle (20') und eine zweite Halbwelle (20") enthält, die koaxial sind und in Bezug zu einander drehen, wobei die erste und die zweite Halbwelle (20', 20") je einen von einem der Federgehäuse (11', 11") angetriebenen Trieb (22', 22") haben.
  14. Uhr, die ein Uhrwerk nach einem der vorhergehenden Ansprüche aufweist.
EP15710492.8A 2014-03-21 2015-03-17 Uhrwerk Active EP3120198B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00433/14A CH709394A1 (fr) 2014-03-21 2014-03-21 Mouvement d'horlogerie.
PCT/EP2015/055559 WO2015140168A2 (fr) 2014-03-21 2015-03-17 Mouvement d'horlogerie

Publications (2)

Publication Number Publication Date
EP3120198A2 EP3120198A2 (de) 2017-01-25
EP3120198B1 true EP3120198B1 (de) 2020-05-27

Family

ID=52686365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15710492.8A Active EP3120198B1 (de) 2014-03-21 2015-03-17 Uhrwerk

Country Status (3)

Country Link
EP (1) EP3120198B1 (de)
CH (1) CH709394A1 (de)
WO (1) WO2015140168A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH712101A2 (fr) 2016-02-08 2017-08-15 Hepta Swiss Sa Mouvement d'horlogerie comprenant un dispositif de régulation disposé entre une source d'énergie et un échappement.
CH713109B1 (fr) 2016-11-04 2021-09-30 Concepto Holding Sa Mouvement d'horlogerie comportant aux moins deux tourbillons.
JP6748318B1 (ja) * 2020-01-29 2020-08-26 セイコーウオッチ株式会社 脱進調速機、時計用ムーブメントおよび時計
WO2023214300A1 (fr) * 2022-05-03 2023-11-09 Chronode Sa Organe réglant pour mouvement horloger
EP4273634A1 (de) * 2022-05-03 2023-11-08 Chronode SA Regulierorgan für uhrwerk

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH698435B1 (fr) * 2004-11-15 2009-08-14 Jerome De Witt Mouvement d'horlogerie et pièce d'horlogerie comportant un tel mouvement.
CH698622B1 (fr) 2004-12-21 2009-09-15 Gfpi S A Mouvement de pièce d'horlogerie comportant un différentiel et deux échappements.
US7815363B2 (en) * 2005-03-23 2010-10-19 Bnb Concept Sa Movement for a timepiece with plural escapements
ATE470890T1 (de) * 2005-03-30 2010-06-15 Montres Breguet Sa Uhr mit mindenstens zwei reguliersystemen
ATE487964T1 (de) * 2007-02-08 2010-11-15 Complitime S A Uhrwerk
DE602008006057D1 (de) * 2008-07-04 2011-05-19 Swatch Group Res & Dev Ltd Gekoppelte Resonatoren für Uhr
EP2570870B1 (de) * 2011-09-15 2016-04-06 The Swatch Group Research and Development Ltd. Uhr mit permanent gekoppelten Oszillatoren
CH708373B1 (fr) * 2013-07-26 2017-12-15 Red & White Intellectual Property Man Sa Mouvement d'horlogerie comprenant deux trains d'engrenages reliés cinématiquement entre eux.
CH708658A1 (fr) * 2013-10-03 2015-04-15 Gfpi S A Mouvement d'horlogerie comprenant un engrenage différentiel entre organes réglants.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CH709394A1 (fr) 2015-09-30
EP3120198A2 (de) 2017-01-25
WO2015140168A3 (fr) 2016-06-23
WO2015140168A2 (fr) 2015-09-24

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