EP3767397B1 - Mouvement horloger comprenant un element tournant muni d'une structure aimantee ayant une configuration periodique - Google Patents

Mouvement horloger comprenant un element tournant muni d'une structure aimantee ayant une configuration periodique Download PDF

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Publication number
EP3767397B1
EP3767397B1 EP19187333.0A EP19187333A EP3767397B1 EP 3767397 B1 EP3767397 B1 EP 3767397B1 EP 19187333 A EP19187333 A EP 19187333A EP 3767397 B1 EP3767397 B1 EP 3767397B1
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EP
European Patent Office
Prior art keywords
magnetic
elements
angular
torque
timepiece movement
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EP19187333.0A
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German (de)
English (en)
French (fr)
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EP3767397A1 (fr
Inventor
Gianni Di Domenico
Marc Stranczl
Benoît LEGERET
René Piguet
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Priority to EP19187333.0A priority Critical patent/EP3767397B1/fr
Priority to US16/891,168 priority patent/US11822294B2/en
Priority to JP2020108538A priority patent/JP6982139B2/ja
Priority to CN202010691556.5A priority patent/CN112241120B/zh
Publication of EP3767397A1 publication Critical patent/EP3767397A1/fr
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
    • G04C5/005—Magnetic or electromagnetic means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/104—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details of the pawl or the ratched-wheel
    • G04C3/105—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details of the pawl or the ratched-wheel pawl and ratched-wheel being magnetically coupled

Definitions

  • the invention relates to watch movements provided with at least one rotating element participating in at least one magnetic system of the watch movement, this rotating element being provided with an annular magnetized structure having an angular variation of at least one physical parameter which defines.
  • Rotating element means an element arranged in the watch movement so as to be able to undergo a certain rotation, in a given direction or in both directions. Thus, this expression applies for example as much to an escape wheel as to a balance wheel.
  • watch movements comprising at least one magnetic system intervening in the operation of the watch movement are known from the prior art.
  • watch movements equipped with a magnetic escapement formed by a magnetic system in which participate at least one magnet carried by an anchor and at least one magnet carried by an escape wheel are known.
  • Such magnetic escapements are described in particular in the documents EP_2887157 , EP_3128379 , EP_3128379 , EP_3208667 , EP_3217227 and CH_712154 .
  • Such watch movements are described in particular in the documents CH_709031 and CH_713070 .
  • a rotating element supports an annular magnetized structure and when the latter exhibits an angular variation of at least one physical parameter which defines it
  • the inventors have observed that, in the presence of at least one ferromagnetic part located in particular at the periphery of the rotating element, not only does this ferromagnetic part exert a radial attraction on the annular magnetized structure, so that a parasitic friction force is generated in the bearings of the shaft of the rotating element, but in addition the element rotating is subjected to a parasitic magnetic torque varying according to the angular position of the rotating element.
  • a parasitic magnetic torque disturbs the proper functioning of the magnetic system in which the rotating element participates, in particular in the case of a magnetic escapement having an escape wheel of the type of the aforementioned rotating element.
  • an anchor magnet having a steel axis must remain at the periphery of the magnetic escape wheel to which this magnetic anchor is associated.
  • the inventors have decided to seek a technical solution to solve the particular technical problem, namely the manifestation of a disturbing magnetic torque, which neither requires nor having to change the nature of magnetic elements in the environment of an element. revolving fitted with a magnetic structure presenting an angular variation of at least one physical parameter, nor having to modify the design of the watch movement, that is to say its various functional parts and their interactions.
  • the present invention relates to a watch movement comprising a mechanism formed by a rotating element, provided with an annular magnetic structure having an angular variation of at least one physical parameter which defines it, and by a first set of elements magnetic elements which consists of a functional magnetic element or of a plurality of functional magnetic elements, this first set of magnetic elements not being integral in rotation with the rotating element and having with the annular magnetized structure generally a first magnetic interaction which generates on the rotating element a first parasitic magnetic torque.
  • the watch movement further comprises a second set of magnetic elements which consists of a magnetic compensation element or of a plurality of magnetic compensation elements not belonging to any mechanism of the watch movement, this second set of magnetic being not integral in rotation with the rotating element and having with the globally annular magnetized structure a second magnetic interaction which generates on the rotating element a second parasitic magnetic torque.
  • the second set of magnetic elements is arranged relative to the first set of magnetic elements so that the maximum absolute value of the torque resulting from the addition of the first parasitic magnetic torque with the second parasitic magnetic torque is less than the maximum absolute value of the first parasitic magnetic couple.
  • the first parasitic magnetic torque as a function of the angular position of the rotating element defines a first curve of the sinusoidal type having an angular period equal to 360°/N with N being an integer greater than one ( N > 1).
  • the second set of magnetic elements is arranged relative to the first set of magnetic elements so that the second parasitic magnetic torque as a function of the angular position of the rotating element defines a second curve of the sinusoidal type also having said period angular, and so that the first and second parasitic magnetic couples have between them an angular phase shift substantially equal to 180°.
  • the second set of magnetic elements consists of K magnetic compensation elements or K groups of magnetic compensation elements having substantially the same configuration, K being an integer greater than one (K>1) .
  • the overall parasitic magnetic torque is therefore reduced, which is exerted by at least one functional magnetic element on the rotating element provided with an annular magnetic structure, by adding in the surrounding space of this rotating element at least one magnetic compensation element.
  • the annular magnetized structure is configured and the compensation magnetic element is arranged so that the maximum absolute value of said resulting torque is less than 15% of the maximum value of the first parasitic magnetic torque.
  • Claim 1 defines a horological movement according to the present invention. Preferred embodiments are defined in claims 2-14.
  • a mechanical watch movement 2 of the prior art will be described below in order to better highlight the technical problem posed by such a watch movement which is provided with a balance wheel 4 and a magnetic escapement formed by a magnetic lever 8 and an escape wheel referenced 6 in the variant of the Figure 1 , respectively 6A in the variant of Figure 2 and 3 .
  • the magnetic anchor is provided with two magnetic pallets 9, 10 arranged at the free ends of two arms.
  • the escapement wheel 6 comprises a non-magnetic support 11 on which is arranged a structured magnetic layer 12 which alone forms an annular magnetic structure of the escapement wheel.
  • This structured magnetic layer has a magnetic track 14 which surrounds the shaft 20 of the escape wheel along a generally circular path but with convex portions 14a, that is to say outgoing, and concave portions 14b, i.e. incoming.
  • the structured magnetic layer 12 has external magnetic pads 16 and internal magnetic pads 17 which are located respectively on both sides of the magnetic track 14 and which define magnetic barriers for the magnetic pallets of the anchor 8. Operation of such a magnetic escapement is described in the documents cited above in the technological background, so that reference will be made to these documents to know it.
  • the escapement wheel 6A comprises two structured magnetic layers 12A and 12B which are each identical to the layer 12 of the Figure 1 and which are arranged axially opposite each other with the pads 16 and 17 of the layer 12A superimposed on the corresponding pads of the layer 12B.
  • the two layers 12A and 12B are arranged on two respective supports 11A and 11B, made of non-magnetic material, which are fixedly mounted on the shaft 20, which comprises a pinion 22 for driving the escape wheel 6A.
  • the two structured magnetic layers are located on the side of an intermediate space defined by the two supports 11A, 11B and into which the two respective ends of the two arms of the anchor 8 penetrate, so as to allow magnetic interaction of the magnetic pallets of the anchor with the two layers 12A and 12B.
  • the two structured magnetized layers 12A, 12B together form an annular magnetized structure of the magnetic escape wheel 6A.
  • the two layers 12A, 12B each have a constant thickness, so that the annular magnetized structure also has a constant thickness axially.
  • a watch movement is considered comprising a mechanism formed by a rotating element, provided with an annular magnetized structure having an angular variation of at least one physical parameter defining this annular magnetized structure, and by a first set of magnetic elements which consists of at least one functional magnetic element, this first set of magnetic elements not being integral in rotation with the rotating element and generally having a first magnetic interaction with the annular magnetized structure .
  • the rotating element is a magnetic escape wheel.
  • the rotating element can be another component, in particular a pendulum.
  • the first set of magnetic elements consists of at least one axis made of ferromagnetic material, in particular the axis of the lever associated with the escape wheel and/or the axis an intermediate mobile located close to this wheel and forming a gear train which transmits the torque from a barrel to the escapement wheel.
  • the invention is not limited solely to axes made of ferromagnetic materials, but that it applies to any other magnetic element capable of being arranged at the immediate periphery of the rotating element in question, in particular to a magnetic escape wheel, and to present a significant magnetic interaction with its annular magnetized structure.
  • 'magnetic element' is meant a magnet, a ferromagnetic element or a combination of both.
  • annular magnetized structure exhibits an angular variation, namely the radial width of each structured magnetized layer 12A, 12B and the average distance of each structured magnetized layer from the axis of rotation 21 of the escape wheel 6A.
  • the angular variations of the radial width and the average distance to the axis of rotation of the two layers 12A, 12B, and therefore of the annular magnetized structure are periodic so that the annular magnetized structure has an angular period equal to 360°/N with N being an integer greater than one (N > 1).
  • the ferromagnetic axis 18 forms a body of revolution so that the volume of magnetic material that it defines remains invariant whatever the angular position of the anchor 8.
  • the first magnetic interaction between the magnetic axis 18 and the annular magnetic structure 12A-12B of wheel 6A generates on this wheel, because it comprises a periodic annular magnetic structure, a first parasitic magnetic torque which depends substantially only on the angular position of wheel 6A and which varies periodically in function of the angular position of the wheel 6A by having, in the variant considered, the same angular period PA, here 60° or ⁇ /3 [rad], as the annular magnetized structure 12A-12B.
  • PA angular period
  • a curve that is alternately positive and negative with positive extreme values which are close, normally identical but which may differ slightly, and negative extreme values which are close, normally identical but which may differ slightly .
  • the positive extreme values and the negative values are, in absolute values, close to each other, preferably almost identical but they can differ to a certain extent, for example by 10% to 20%.
  • a periodic character can be recognized in such a curve with the period as the angular distance between two positive extreme values or, equivalently, two negative extreme values.
  • the two half-periods forming the period of such a curve can have different values, as is the case of curve 30 at the Figure 4 , although it is advantageous for the two half-periods to have substantially the same value.
  • the watch movement is similar to that of the prior art described above as regards the mechanism(s) which compose it and it further comprises a magnetic compensation element 32 which is similar in shape to the magnetic axis 18 or, more generally, configured to generate on the annular magnetized structure, in particular on the structured magnetic layer 12A which forms it, a torque having substantially the same intensity as that of the torque generated by the axis 18 ( Figure 4 ).
  • This magnetic compensation element 32 is here formed by a magnetic pin, arranged at the periphery of the magnetic escape wheel and formed by a ferromagnetic material, and it is arranged so as to present an angular offset relative to the magnetic axis, related to an angular period of the periodic structured magnetized layer 12A and therefore to the angular period of the periodic annular magnetized structure.
  • a second parasitic magnetic torque generated by the magnetic pin 32 defines a curve similar to the curve 30 of the Figure 4 , but the first and second parasitic magnetic couples have between them a phase shift of about 180°, preferably 180°.
  • the magnetic pin 32 is arranged on the side diametrically opposite to the functional magnetic axis 18 to also compensate for the major part of the magnetic attraction force exerted by this axis 18 on escape wheel 6A.
  • the torque resulting from the addition of the first and second parasitic magnetic torques is shown in Figure 6 . It is first observed that the maximum absolute value V2 of this resulting torque is lower than the maximum absolute value V1 of the first parasitic magnetic torque represented in Figure 4 . In the example treated here, the maximum absolute value V2 of the resulting torque is slightly less than half the maximum absolute value V1 of the first parasitic magnetic torque.
  • the curve 34 of the resulting torque has a period equal to half the angular period PA of the structured magnetized layer 12A and therefore of the annular magnetized structure.
  • the watch movement comprises a second set of magnetic elements which consists of a magnetic compensation element or a plurality of magnetic compensation elements not belonging to any mechanism of the watch movement, this second set of magnetic elements being non-rotatably connected to the rotating element and having with the globally annular magnetized structure a second magnetic interaction which generates on the rotating element a second parasitic magnetic torque.
  • the second set of magnetic elements is arranged relative to the first set of magnetic elements so that the maximum absolute value of the torque resulting from the addition of the first and second parasitic magnetic torque is less than the maximum absolute value of the first parasitic magnetic torque.
  • the first parasitic magnetic torque as a function of the angular position of the rotating element defines a first curve of the sinusoidal type having an angular period equal to 360°/N , with N being an integer greater than one (N > 1).
  • the second set of magnetic elements is arranged relative to the first set of magnetic elements so that the second parasitic magnetic torque as a function of the angular position of said rotating element defines a second curve of the sinusoidal type also exhibiting said angular period, and so that the first and second parasitic magnetic couples have between them an angular phase shift substantially equal to 180°.
  • the watch movement shown partially on the Picture 7 , comprises a magnetic escape wheel 36 provided with an annular magnetized structure formed, as in Figure 2 , of two structured magnetic layers of which only the lower layer 38A appears at the Picture 7 .
  • the escape wheel comprises a shaft 20 and a non-magnetic support 40 carrying the lower magnetic layer 38A.
  • This escape wheel is arranged to rotate around an axis of rotation 21. It is associated with a magnetic anchor 8A, which is formed by a magnetic axis 18A and two non-magnetic arms, shown in broken lines, which carry at their ends free respectively two magnetic pallets 9, 10.
  • the structured magnetic layer 38A and the annular magnetic structure formed by this structured magnetic layer differ from the layer 12 A and from the annular magnetic structure of the Figure 5 by a new configuration.
  • the annular magnetized structure formed of the structured magnetized layer 38A or of two such superimposed layers, as shown in Figure 2 defines magnetic barriers 17A for the magnetic anchor which are angularly offset by the angular period PA. It will be noted that only internal magnetic pads 17A have been provided in the advantageous variant considered.
  • Layer 38A has a constant thickness and defines a magnetic track 14A with variable radial width.
  • the annular magnetized structure is configured so that its outer profile is substantially circular and continuous, as in the case of the advantageous variant of the Picture 7 .
  • By 'circular external profile' in the case of a structure having two structured magnetic layers, it is understood that each layer has an external profile which is substantially circular.
  • the diameters of the two structured magnetic layers are equal, so that the external profiles of these two layers define a cylindrical geometric surface.
  • Such an arrangement of the annular magnetized structure makes it possible, on the one hand, to reduce the first parasitic magnetic torque generated by the functional magnetic element or elements at the periphery of the escape wheel 36 and, on the other hand, to reduce the ratio between the maximum absolute value of the resulting torque (from the addition of the first parasitic magnetic torque and the parasitic magnetic torque generated by the compensation pin) and that of the first parasitic magnetic torque.
  • the second embodiment is distinguished from the first again by the fact that two functional magnetic elements at the direct periphery of the escape wheel are considered here, namely the magnetic axis 18A of the lever 8A and the magnetic axis 42 an intermediate mobile forming a cog between the escapement wheel and a barrel of the watch movement and meshing with the pinion of the escapement wheel.
  • the individual magnetic couples which are generated respectively by the two magnetic axes 18A and 42 (at least partly in ferromagnetic material).
  • the individual magnetic torque generated by the axis 42 is predominant.
  • the first parasitic magnetic torque ( Figure 8C ) has a curve 44 close to that of the Figure 8B , also with a period PA, these two curves having a certain phase difference between them.
  • the magnetic compensation pin 32A is arranged so that the individual magnetic torque, constituting the second parasitic magnetic torque, which it exerts on the escape wheel has an angular phase shift of 180° with the first magnetic torque. parasitic, and not with the individual magnetic torque of the ferromagnetic axis 42 ( Figure 8B ), although the latter is largely predominant.
  • the pin 32A is dimensioned so as to optimize the compensation that it produces, in particular its diameter and/or its distance from the axis of rotation 21 is/are adjusted so that the maximum absolute value of the second parasitic magnetic torque, generated by the compensation pin 32A, best compensates for the first parasitic magnetic torque and that the resulting torque, whose curve 46 is given at the Figure 8D , from the addition of first and second parasitic magnetic couples thus have the smallest possible amplitude, that is to say the smallest possible maximum absolute value.
  • the maximum absolute value V4 of the torque resulting from the addition of the first and second aforementioned parasitic magnetic torques is less than 30% of the maximum absolute value V3 of the first parasitic magnetic torque. Indeed, in the example described, it is observed that the ratio between the maximum absolute value V4 of the curve 46 and the maximum absolute value V3 of the curve 44 gives approximately 1/5.
  • the compensation pin 32A is arranged so that its position relative to the axis of rotation 21 can be adjusted to adjust the angular phase shift and/or the value maximum absolute value of the second parasitic magnetic torque (curve 44) and thus optimize the curve of the resulting torque (curve 46), in particular the maximum absolute value V4 of this resulting torque, that is to say reduce this maximum absolute value at the smallest possible value.
  • the pin 32A forms an eccentric that the watchmaker can turn using a tool to adjust its distance from the axis of rotation and therefore from the annular magnetic structure. If it is desired not to vary the angular position of the compensation pin, it is possible in a variant to arrange the compensation pin in a kind of radial slide. A person skilled in the art will know how to provide the means necessary for adjusting the radial and/or angular position of this compensation pin.
  • This third embodiment differs from the first embodiment only in that the single pin of compensation of the second embodiment is replaced by two compensation pins 50, 52 similar to the magnetic axis 18 which here constitutes all the functional magnetic elements considered (this magnetic axis considered can be either the axis of the anchor, or the axis of an intermediate mobile meshing with the escapement wheel 6A).
  • the two compensation pins are arranged so that the two individual magnetic torques which they respectively exert on the escape wheel are out of phase respectively by 120° and 240° (equivalent to -120°) relative to the first parasitic magnetic torque generated by the magnetic axis 18.
  • the two magnetic compensation pins 50 and 52 are arranged so as to distribute these two compensation pins and the magnetic axis 18 as evenly as possible around the axis of rotation to minimize friction in the bearings of the wheel. exhaust due to the magnetic attraction exerted by each of them on the annular magnetized structure of this wheel.
  • the curve 54 of the resultant torque exerted overall by the two compensating pins and the functional magnetic element of the Figure 9 is given.
  • the maximum absolute value V5 of curve 54 is relatively low. It is less than 20% of the maximum absolute value V1 of the first parasitic magnetic torque (see Figure 4 ).
  • the curve 54 is periodic and has a period angular period equal to one third of the angular period PA of the annular magnetized structure, ie an angular period equal to PA/3.
  • This fourth embodiment differs from the second embodiment in that the single magnetic compensation pin of the second embodiment is replaced here by two magnetic compensation pins 32B and 32C which are arranged in an equivalent manner to the third embodiment .
  • the first set of magnetic elements comprises a plurality of functional magnetic elements, i.e. two magnetic axes in the variant described
  • the second set of magnetic elements comprises a plurality of magnetic compensation elements, i.e. two pins in this variant.
  • the two compensation pins are arranged so that the two individual magnetic torques which they respectively exert on the escape wheel are out of phase respectively by 120° and 240° relative to the first parasitic magnetic torque generated globally by the two magnetic axes 18A and 42.
  • This remainder is therefore equal to 10° so that the angle DA5 between the two pins 32B and 32C is equal to 40° in the example shown in Picture 11 , or at an angular period (equal to 30°) to which the remainder of 10° is added.
  • the angle DA6 between the axis 42 and the pin 32B does not correspond to an integer period PA to which one adds or subtracts 10°, although this angle DA6 approaches it due to the fact that the axis 42 is predominant in the first parasitic magnetic torque generated by the two functional magnetic elements on the escape wheel.
  • the curve 60 of the torque resulting from the addition of the first parasitic magnetic torque, globally generated by the first set of magnetic elements, with the second parasitic magnetic torque, globally generated by the second set of magnetic elements, is shown in Picture 12 .
  • the resulting torque is the result of the addition of all the individual parasitic magnetic torques that are considered.
  • the annular magnetized structure of the fourth embodiment is configured and the two magnetic compensation elements are arranged so that the maximum absolute value V6 of the resulting torque is less than 15%, or even 12% of the maximum absolute value V3 (see Figure 8C ) of the first parasitic magnetic couple.
  • a person skilled in the art can optimize the system by specifically configuring the two compensation pins which are preferably identical, in particular their respective diameters and their respective distances from the axis of rotation.
  • the two pins 32B and 32C are not here respectively identical, in their respective configurations and their relative arrangement on the periphery of the escapement wheel 36, to the two axes 18A and 42. If such were the case, one would in fact be in a variant of the second embodiment in which the two pins would together form a group of magnetic elements to be considered as an inseparable whole and not individually, that is to say not as two distinct compensation elements whose individual parasitic magnetic couples could present different phase shifts relative to the first magnetic couple parasite and selected as described above.
  • the two compensation pins to be in their respective configurations, in particular their dimensions and the material from which they are made, and their respective arrangements relative to the axis of rotation, in particular the distance to this axis of rotation, substantially identical to the compensation pin 32A of the second embodiment which optimizes the result of this second embodiment or that they have the same effect as this compensation pin 32A on the annular magnetic structure.
  • the second set of magnetic elements consists of K magnetic compensation elements or K groups of magnetic compensation elements having substantially the same configuration, K being an integer greater than one (K>1).

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Electromechanical Clocks (AREA)
EP19187333.0A 2019-07-19 2019-07-19 Mouvement horloger comprenant un element tournant muni d'une structure aimantee ayant une configuration periodique Active EP3767397B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19187333.0A EP3767397B1 (fr) 2019-07-19 2019-07-19 Mouvement horloger comprenant un element tournant muni d'une structure aimantee ayant une configuration periodique
US16/891,168 US11822294B2 (en) 2019-07-19 2020-06-03 Timepiece movement comprising a rotating element provided with a magnetized structure having a periodic configuration
JP2020108538A JP6982139B2 (ja) 2019-07-19 2020-06-24 周期的な構成を有する磁化構造で提供される回転要素を備えた計時器ムーブメント
CN202010691556.5A CN112241120B (zh) 2019-07-19 2020-07-17 包括设有周期性构型的磁化结构的旋转元件的钟表机芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19187333.0A EP3767397B1 (fr) 2019-07-19 2019-07-19 Mouvement horloger comprenant un element tournant muni d'une structure aimantee ayant une configuration periodique

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EP3767397A1 EP3767397A1 (fr) 2021-01-20
EP3767397B1 true EP3767397B1 (fr) 2022-04-20

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EP19187333.0A Active EP3767397B1 (fr) 2019-07-19 2019-07-19 Mouvement horloger comprenant un element tournant muni d'une structure aimantee ayant une configuration periodique

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US (1) US11822294B2 (zh)
EP (1) EP3767397B1 (zh)
JP (1) JP6982139B2 (zh)
CN (1) CN112241120B (zh)

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Publication number Priority date Publication date Assignee Title
EP4202564A1 (fr) * 2021-12-22 2023-06-28 The Swatch Group Research and Development Ltd Mouvement mecanique horloger comprenant un balancier pivote magnetiquement

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EP2466401B1 (fr) 2010-12-15 2013-08-14 Asgalium Unitec SA Résonateur magnétique pour pièce d'horlogerie mécanique
CH707471B1 (fr) * 2013-08-05 2014-07-31 Rd Engineering Rudolf Dinger Système régulateur pour montre mécanique.
US9465366B2 (en) 2013-12-23 2016-10-11 The Swatch Group Research And Development Ltd Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
EP2998801A1 (fr) * 2014-09-19 2016-03-23 The Swatch Group Research and Development Ltd. Echappement magnétique horloger et dispositif régulateur de la marche d'un mouvement horloger
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EP3087435B1 (fr) 2013-12-23 2020-04-22 The Swatch Group Research and Development Ltd. Dispositif regulateur de la vitesse angulaire d'un mobile dans un mouvement horloger comprenant un echappement magnetique
EP2887157B1 (fr) 2013-12-23 2018-02-07 The Swatch Group Research and Development Ltd. Echappement optimisé
EP3120199B1 (fr) * 2014-03-21 2022-12-07 Hublot S.A., Genève Oscillateur horloger
EP3128379B1 (fr) * 2015-08-04 2019-10-02 The Swatch Group Research and Development Ltd. Echappement avec roue d'echappement avec rampes de champ et dispositif anti-retour
EP3185083B1 (fr) * 2015-12-23 2018-11-14 Montres Breguet S.A. Mecanisme horloger mecanique avec un echappement a ancre
CH712154B1 (fr) 2016-02-18 2019-12-13 Swatch Group Res & Dev Ltd Mobile d'échappement magnétique d'horlogerie.
EP3208667A1 (fr) * 2016-02-18 2017-08-23 The Swatch Group Research and Development Ltd Mobile d'echappement magnetique d'horlogerie
EP3217227B1 (fr) 2016-03-11 2019-02-27 The Swatch Group Research and Development Ltd. Mecanisme regulateur d'horlogerie a echappement magnetique optimise
EP3316046B1 (fr) 2016-10-25 2019-07-31 The Swatch Group Research and Development Ltd Mouvement d'horlogerie optimisé
CH713070B1 (fr) 2016-10-25 2022-02-28 Swatch Group Res & Dev Ltd Mouvement mécanique d'horlogerie comportant un mécanisme résonateur à lames et un mécanisme d'échappement magnétique.
EP3339982B1 (fr) * 2016-12-23 2021-08-25 The Swatch Group Research and Development Ltd Régulation par freinage mécanique d'un oscillateur mécanique horloger
EP3489767A1 (fr) * 2017-11-27 2019-05-29 Montres Breguet S.A. Dispositif de centrage magnetique d'un arbre dans un mouvement horloger

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JP6982139B2 (ja) 2021-12-17
EP3767397A1 (fr) 2021-01-20
US20210018876A1 (en) 2021-01-21
JP2021018237A (ja) 2021-02-15
CN112241120B (zh) 2021-12-24
US11822294B2 (en) 2023-11-21
CN112241120A (zh) 2021-01-19

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