EP3627242B1 - Mecanisme d'echappement d'horlogerie magneto-mecanique optimise - Google Patents

Mecanisme d'echappement d'horlogerie magneto-mecanique optimise Download PDF

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Publication number
EP3627242B1
EP3627242B1 EP18195530.3A EP18195530A EP3627242B1 EP 3627242 B1 EP3627242 B1 EP 3627242B1 EP 18195530 A EP18195530 A EP 18195530A EP 3627242 B1 EP3627242 B1 EP 3627242B1
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EP
European Patent Office
Prior art keywords
magnetic
pallet
oscillator
wheel
entry
Prior art date
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Application number
EP18195530.3A
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German (de)
English (en)
French (fr)
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EP3627242A1 (fr
Inventor
Gianni Di Domenico
Jérôme Favre
Dominique Léchot
Baptiste Hinaux
Olivier Matthey
Pascal Winkler
Marc Stranczl
Michel Willemin
Ahmad Odeh
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Publication date
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Priority to EP18195530.3A priority Critical patent/EP3627242B1/fr
Priority to JP2019165896A priority patent/JP6796697B2/ja
Priority to US16/571,428 priority patent/US11567456B2/en
Priority to CN201910884458.0A priority patent/CN110928170B/zh
Publication of EP3627242A1 publication Critical patent/EP3627242A1/fr
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Publication of EP3627242B1 publication Critical patent/EP3627242B1/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
    • G04B15/02—Escapements permanently in contact with the regulating mechanism
    • G04B15/04—Cylinder 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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
    • G04C3/04—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 balance

Definitions

  • the invention relates to a clockwork oscillator, comprising at least one resonator, with an inertial mass returned by elastic return means relative to a fixed structure, said resonator oscillating about an axis of oscillation, said inertial mass bearing an input pallet and an output pallet, said oscillator comprising an escape mechanism comprising an escape wheel arranged to rotate about an axis of rotation and comprising end teeth, each arranged to cooperate with said pallet input or with said output pallet for maintaining the oscillation of said resonator.
  • the invention also relates to a timepiece movement comprising at least one such oscillator.
  • the invention also relates to a watch comprising at least one such movement and / or at least one such oscillator.
  • the invention relates to the field of clockwork oscillator mechanisms.
  • Magnetic exhausts without friction are well suited to maintain this type of resonator, as readable in patent applications EP141999882.3 on behalf of THE SWATCH GROUP RESEARCH & DEVELOPMENT, or US9715217 in the name of DI DOMENICO, because they allow to obtain high returns.
  • the addition of a mechanical anti-release system guarantees robustness when worn, as in the patent application EP16195405.2 on behalf of THE SWATCH GROUP RESEARCH & DEVELOPMENT, but it makes self-start difficult.
  • the patent EP2889704B1 in the name of NIVAROX-FAR describes an escape mechanism whose escape wheel, subjected to a pivoting torque of moment less than a nominal moment, comprises actuators regularly spaced on its periphery, each arranged to cooperate directly with at least a first track of a mobile regulator, in particular a cylindrical track.
  • Each actuator comprises first magnetic stopping means forming a barrier and arranged to cooperate with this first track which is magnetized or ferromagnetic, to exert on the first track a torque greater than the nominal moment.
  • Each actuator also comprises second stop means arranged to constitute a stroke limiting stopper, arranged to constitute an autonomous escape mechanism with at least one complementary first stop surface that the mobile regulator comprises.
  • the invention proposes to provide a robust and self-starting exhaust mechanism for maintaining a high-frequency resonator with a high quality factor.
  • the invention relates to a clockwork oscillator mechanism according to claim 1.
  • Other preferred embodiments are defined in claims 2 to 16.
  • the invention also relates, according to claim 17, to a timepiece movement comprising at least one such oscillator.
  • the invention also relates, according to claim 18, to a watch comprising at least one such movement and / or at least one such oscillator.
  • the invention proposes to provide a robust and self-starting escapement mechanism for maintaining a high-frequency, high-quality factor resonator, with anti-stall properties.
  • the invention is a practice of the magneto-mechanical escapement, such as that described in the patent application EP2894522 in the name of NIVAROX-FAR, which combines the advantages of high efficiency, great robustness and self-starting.
  • the invention adapts, with a markedly improved efficiency, the principle of mechanical cylinder exhausts, which have the advantage of ensuring safety in the event of excessive torque, in particular during an impact, but the high level of friction significantly affects the performance of the exhaust.
  • the improvement in efficiency results from the elimination of contact and friction in a cylinder escapement, by the placement of magnets, or electrets, or the like, which, judiciously placed, form a magnetic or electrostatic repulsion, which eliminates friction and therefore the main defect of this mechanical cylinder escapement.
  • Magnets, or the like, placed on the escape wheel act as a contactless stopper. Mechanical stops are added to prevent any runaway of the escape wheel in the event of an impact.
  • the invention is here more particularly described in the magnetic alternative. Those skilled in the art will find in the prior art cited above the means of its adaptation to an electrostatic version, or even a mixed magnetic-electrostatic version.
  • the complete oscillator 300 comprises at least one resonator 100, in particular but not limited to a resonator with at least one inertial mass 1, in particular a balance, suspended directly or indirectly from a fixed structure 3, which is intended to be fixed to a plate or similar.
  • This at least one inertial mass 1 is recalled by elastic return means.
  • these elastic return means comprise flexible blades 2, as can be seen on the figures 1 and 2 , and this resonator 100 is maintained by a magneto-mechanical exhaust mechanism 200.
  • these elastic return means may include at least one spiral spring, or the like.
  • At least one inertial mass 1 carries an entry pallet PE and an exit pallet PS.
  • the oscillator 300 comprising an escape mechanism 200.
  • the escape mechanism 200 is an intermittent operating mechanism, and conventionally comprises at least one escape wheel 20, arranged to rotate about an axis of rotation OE, and which comprises arms 21 provided with mechanical end teeth 22, arranged to interact alternately with the inlet PE and outlet PS paddles. Each of these teeth 22 is arranged to cooperate with the input pallet PE or with the output pallet PS for maintaining the oscillation of the resonator 100.
  • this escape mechanism 200 is magneto-mechanical.
  • the escape wheel 20 comprises at least one magnet 23 at the end of each tooth 22.
  • These teeth 22 are arranged to rest on a mechanical pallet 16, which each input PE or PS output pallet comprises during the arc. free of the resonator 100.
  • the input pallet PE comprises a first magnetic arrangement 30,
  • the output pallet PS comprises a second magnetic arrangement 30.
  • this first magnetic arrangement 30 and this second magnetic arrangement 30 each comprise an annular sector, centered on the axis of oscillation OR of the resonator 100, and defining a first magnetic barrier zone Z1.
  • This first magnetic barrier zone Z1 extends above and / or below the mechanical pallet 16, with reference to the direction of the axis of oscillation OR, over the entire length of this mechanical pallet suitable for use. bearing on the teeth 22 during the free arc, so as to constitute a magnetic cylinder escape mechanism.
  • such an inertial mass 1 comprises a balance 11, in particular made of titanium alloy, comprising adjustment weights 101.
  • This inertial mass 1 is integral with two plates 12, 13, made of silicon, or of silicon and silicon dioxide, or the like, each comprising a flexible blade 2.
  • the two flexible blades 2 shown here intersect in projection substantially at the level of the axis of oscillation OR of the inertial mass 1.
  • the ends of the two plates, opposite to those fixed to the balance 11, constitute a single mass 4, or two distinct masses 4, each suspended by transverse flexible blades 7 and / or at least one rigid beam 6 to an intermediate body 5, itself suspended from the structure fixed 3 by longitudinal flexible blades 8 and / or at least one rigid beam 9.
  • This particular arrangement constitutes an anti-shock table, effective for protecting the flexible pivot formed by the flexible blades ibles 2.
  • Such anti-shock devices intended to protect the blades of the resonator are in particular described in the patent applications. CH00518 / 18 on behalf of ETA and CH00540 / 18 on behalf of THE SWATCH GROUP RESEARCH & DEVELOPMENT.
  • such devices include such translation tables, allowing the inertial mass 1 of the resonator 100, in particular a balance 11, to be able to move in the event of an impact, and stops centered on the axis of rotation of this inertial mass, in order to retain it without acting on the pivot blades.
  • stops are not visible in the figures, and may consist of pins fixed to a plate or to a bridge, one being an upper pin cooperating with play with an upper bore 18 of the inertial mass 1, and limiting its displacement in the event of an impact, and the other being a lower pin cooperating with play with a lower bore 19 of the inertial mass 1, and limiting its displacement in the event of an impact.
  • this bore 19 passes through both an upper flange 15 and a lower flange 17, which surround a mechanical pallet 16 integral with the inertial mass 1.
  • the resonator 100 comprises a stopper with an input paddle PE, and an output paddle PS, each capable, during the oscillation of the resonator 100, to cooperate with the escape wheel 20.
  • These input paddles PE and output PS may be separate, or form a single unit, each is arranged to be fixed integral with the inertial mass 1, and the distal end of each pallet PE, PS is arranged to cooperate with the teeth 22 of the wheel 20
  • Each pallet PE, PS comprises a mechanical pallet 16 provided for mechanical contact with the teeth 22, and this mechanical pallet 16 advantageously, but not necessarily, ends in an impulse plane at the distal end of the pallet concerned, on the escape wheel side 20.
  • At least one escape wheel 20 comprises at least one magnet 23 at the end of each tooth 22.
  • the oscillator 300 comprises a first magnetic arrangement 30 for the input pallet PE and a second magnetic arrangement 30 for the PS output pallet, and which are not necessarily identical, as we will see later.
  • Each magnetic arrangement 30 is arranged to be attached to a pallet, or else forms an integral part of a pallet, at least at an upper flange 15 and / or a lower flange 17, flanking the mechanical pallet 16, and disposed respectively above or below the escape wheel 20; these arrangements above and below are understood with reference to the direction of the axis of oscillation OR of the resonator 100, and of the axis of rotation OE of the escape wheel 20, which is parallel to it.
  • an entry pallet PE or an exit pallet PS comprises a mechanical pallet 16, arranged to cooperate with the teeth 22 of the wheel 20, and a magnetic arrangement 30, the magnetic field effect of which is superimposed on the teeth. potential mechanical interaction surfaces of the mechanical pallet 16.
  • This magnetic arrangement 30 can be produced at different surfaces, in particular the surfaces of the mechanical pallet 16, more particularly at the edge or beyond the zone of mechanical interaction with it. the teeth 22 of the wheel 20.
  • at least one such magnetic arrangement 30 is implanted under an upper flange 15 and / or on a lower flange 17 of one of the inlet PE or outlet PS pallets. More particularly, at least one such magnetic arrangement 30 is installed under an upper flange 15 and on a lower flange 17 of one of the inlet PE or outlet PS pallets. More particularly still, such a magnetic arrangement 30 is implanted under an upper flange 15 and on a lower flange 17 of each of the input PE and output PS pallets.
  • the resonator 100 is equipped with input PE and output PS vanes comprising substantially tubular mechanical vanes 16, and to which magnets have been added above and below, as can be seen on the figures 3 and 4 , to constitute these magnetic arrangements 30.
  • all or part of the magnets can be replaced by at least one continuous or pixelated magnetized surface.
  • the magnets 23 of the escape wheel 20 interact in repulsion with the magnets carried by the resonator which are arranged on at least one level, and more particularly on two levels, above and below the wheel 20 according to the diagram of the figure 4 .
  • the escape wheel 20 begins to rotate in the direction of the arrow, under the effect of the maintenance torque, and it transmits its impulse by magnetic repulsion to the output pallet PS located on the right-hand side of the figure.
  • a mechanical contact, of shock type, between the escape wheel 20 and the output pallet PS makes it possible to damp the rebounds, as can be seen in figure 8 .
  • This shock is useful, but not essential for the proper functioning of the exhaust. Indeed, one can achieve a similar exhaust in which the shock does not take place.
  • the advantage of a small controlled shock, like this one is to allow the dissipation of part of the energy, and to limit the recoil of the escape wheel 20. Note also that this shock has The advantage of allowing an acoustic measurement of the rate, since, in normal operation, it is then the only audible mechanical contact during operation of the escapement.
  • Another advantage of limiting the rearward movement of the wheel is the possibility of increasing the number of teeth of the escape wheel 20, for the same size.
  • the lowest point to the left of the trajectory T, on the figure 17 corresponds to the relative position of the figure 13 where the magnet 23 traverses the ascending curve curved to the right, before arriving at an extremum which corresponds to the shock of the figure 14 ;
  • the upward inflection to the left corresponds to the decline of the figure 15
  • the ascending trajectory, centered, like the vane itself, and like its mechanical vane 16, on the OR oscillation axis of the resonator 10 corresponds to the free arc without friction of the figure 16 , and this free arc can in particular be longer than that illustrated in the figure, the high position corresponding to the figure 5 , before the descending return with clearance on the right on the PE inlet pallet as in figure 6 .
  • the trajectory at the level of the output pallet PS is of course similar, the figure 17 shows a magnet 23 in repulsive cooperation with a magnetic pad 32, which is included in the magnetic arrangement 30, to give it an impulse.
  • the magnetic arrangement 30 necessarily comprises a magnetic barrier 31, substantially concentric with the pallet PE or PS, and its mechanical pallet 16, around the axis of oscillation OR of the resonator 10.
  • Each such magnetic barrier 31, in conjunction with a magnet 23 of the escape wheel 20, makes it possible to avoid any contact, and therefore any friction, in normal operation, between the tooth 22 and the PE or PS pallet concerned.
  • mechanical contact can occur in the event of an impact, during a fall of the watch for example, between on the one hand the mechanical pallet 16 of the PE or PS pallet and on the other hand a tooth 22, which together ensure the safety stop function.
  • the first magnetic barrier zone Z1 is essential, and its function is to push back the teeth 22 of the escape wheel 20, and thus makes it possible to eliminate the mechanical contact so that the free arc takes place without friction.
  • This first magnetic barrier zone Z1 can be more or less intense but it must follow an arc of a circle centered on the axis of oscillation OR of the resonator 10. It is possible to increase the intensity of the barrier if one wishes to avoid the mechanical shock between the teeth of the escape wheel 20 and the mechanical pallets 16 of the PE and PS pallets. Or conversely, it is possible to reduce the intensity of the barrier, if it is desired to minimize the retreat of the escape wheel 20 after the impact.
  • a mechanism comprising only this magnetic barrier 31 is an exhaust variant with a magnetic cylinder, which represents an improvement of the patent.
  • the magnetic pad 32 of the second self-starting improvement zone Z2 is optional. It is advantageously added to reduce the friction between the escape wheel 20 and the end of the mechanical pallet 16 of the PE or PS pallet at the time of starting thanks to the magnetic repulsion. This significantly improves auto-start.
  • the length of the magnetic pad 32 as well as its shape is adjusted to optimize self-starting.
  • This magnetic pad 32 also has another effect. When the magnet of the escape wheel 20 passes close to the magnetic pad, there is magnetic repulsion, which transmits a pulse to the resonator 100 and significantly improves efficiency.
  • the magnetic pad 32 comprises at least one magnet, and extends substantially perpendicularly to the distal end of the magnetic barrier 31 closest to the escape wheel 20, and on the entry side. in cooperation between a magnet 23 and the magnetic arrangement 30 of the concerned PE or PS pallet, forming with the magnetic barrier 31 an inverted capital L.
  • This magnetic pad 32 is not necessarily straight, it can also be slightly curved.
  • it may include, at its distal end opposite to the magnetic barrier 31, a magnetic lug, on the side opposite to the escape wheel, and extending the zone where the pulses occur. More particularly, this magnetic lug is located at the distal end according to the direction D2- as regards the entry pallet PE, and at the distal end according to the direction D4- with regard to the output pallet PS. More particularly still, this magnetic lug extends in direction D1- as regards the entry pallet PE, and in direction D3- as regards the outlet pallet PS. In another variant not shown, the magnetic pad 32 extends in the direction D2 +, respectively D4 +.
  • the second zone Z2 for improving the self-start is not necessarily identical to the zone where the pulses occur, which means that the pulse can be adjusted without affecting the self-start.
  • the figure 18 shows that the magnet 23 of the wheel 20 interacts twice with the magnetic pad 32: first of all, when the magnet 23 passes into the zone of the first pulse ZP, it pushes back this magnetic pad 32, and thus transmits a first pulse to the resonator 100; then, during the passage of the magnet 23 in the release zone and of the second pulse ZD, the magnetic pad 32 constitutes a sort of neck to pass, due to the repulsion, and this is the high speed of the magnet 23 on its trajectory T which allows it to easily cross this pass. Immediately after the passage of the neck, the wheel 20 starts to turn, and a second pulse is then transmitted to the resonator 100.
  • the repulsion between the magnet 23 and the magnetic pad 32 supplies the first pulse to the resonator 100; the second impulse is transmitted after the passage of the neck in the clearance zone and second impulse ZD, in a similar way to what occurs on the entry pallet.
  • the magnetic pad 32 is completed by a magnetic heel 33, which is substantially in its alignment, and on the opposite side with respect to the magnetic barrier, that is to say in the direction D2 + at the level of the entry pallet PE, and in the direction D4 + at the level of the exit pallet PS.
  • This magnetic bead 33 allows the force of the axis to be separated, and tends to drive the magnet 23 out of the escape wheel 20 tangentially, and makes it possible to combat the frictional force, it allows the repulsion to last until the end of the pallet.
  • This magnetic heel 33 is still useful at the level of the overall kinematics, because the magnetic heel 33 located on the output pallet PS allows the following arm 21 of the escape wheel 20 to be sufficiently engaged in cooperation with the magnetic arrangement 30. of the PE entry pallet, so as not to be subjected to the threshold to be overcome during its passage when entering this zone.
  • the total length of the magnetic shoe 32 and of the magnetic heel 33 which extends it is close to the half-pitch of the ends of the teeth 22 on the circle CE which is the envelope of the path of the escape wheel 20.
  • the magnetic bead 33 is arranged by rays increasing from the axis of rotation OE of the wheel 20 away from said magnetic (32).
  • the magnetic heel 33 is made in a staircase with decreasing steps, as can be seen on the figures 18 and 20 .
  • the total curvilinear length of the magnetic shoe 32 is greater than that of the magnetic heel 33, in order to give a first impulse: at the entry, the whole of the shoe and of the heel extends more in the direction D2- than in the direction D2 +, and at the exit the whole of the shoe and the heel extends more in the direction D4- than in the direction D4 +.
  • the addition of such a magnetic pad 32 to the magnetic barrier 31 is advantageous for self-starting: if this magnetic pad does not exist, the escape wheel can, in certain configurations, come into mechanical abutment on the 'distal end of the mechanical pallet 16 of the PE or PS pallet, and the low torque available at the level of the escape wheel 20 does not make it possible to overcome the friction.
  • the advantage of the magnetic pad 32 is therefore to reduce the frictional force at the end of the mechanical pallet 16 during start-up, which allows normal self-starting.
  • the quantity of magnet to be put in order to optimize the pulse therefore depends on the resonator 100 used and on its quality factor. If the quality factor is low, more magnets are added. If the quality factor is high, less is used.
  • the shape of the mechanical pallet 16 can be optimized to minimize losses and also to promote self-starting.
  • the end of the vanes impulse planes
  • the mechanical vanes 16 of the vanes it is not it is necessary for the mechanical vanes 16 of the vanes to be arcs of a circle centered on the axis of rotation of the resonator. If we observe the figures 18 to 21 it can be seen that in the mechanical contact zone ZC the mechanical pallet 16 of the pallet has been modified, according to a profile 301, to minimize the effect of the impact on the balance. This is to adjust the angle of this area so that the contact force support passes through the center of rotation.
  • This profile 301 can be an inclined plane, or an evolving hollow profile as in the figures, and makes it possible to deflect the force exerted on the pallet downwards according to the representation of the figures, so that the resultant of the two forces which are this force , and the upward tangential frictional force on the vane passes through the axis of oscillation OR of the resonator 10.
  • the magnetic barrier 31 may have a similar variation in magnetization.
  • small magnets are added in the third isochronism correction zone Z3, in order to adjust the anisochronism of the resonator 100 caused by the escape mechanism 100.
  • L The objective is for this induced anisochronism to be compensated for by that of the resonator 100 so that the total oscillator 300 is perfectly isochronous.
  • the quantity and position of these small magnets is adjusted iteratively until the desired effect is obtained.
  • it can also be a simple ferromagnetic surface, weakly cooperating with the magnets 23 of the teeth 22 of the escape wheel 20.
  • This third zone Z3 extends, from the point of view of the teeth 22 of the wheel.
  • this third zone Z3 extends, with respect to the axis of oscillation OR of the resonator, beyond the magnetic barrier zone Z1, and, with respect to the axis of rotation OE of the wheel d exhaust 20, beyond the distal end of the vane; when the magnetic arrangement 30 comprises a magnetic pad 32 defining a second zone Z2, and an associated pulse zone, the third zone Z3 is located, with respect to the axis of rotation OE of the escape wheel 20, at the -beyond the second zone Z2.
  • the mechanical paddles 16 carried by the resonator 100 enter the teeth of the escape wheel 20 when the resonator 100 is in its rest position.
  • the values of the penetrations p1 and p2 are represented on the figure 22 . In this figure we see the circle CE which is the envelope of the path of the escape wheel 20.
  • the penetrations p1 and p2, measured from the radials coming from the axis of oscillation OR of the resonator 10, are necessary for safety reasons, because they prevent any rotation of the escape wheel 20 in complete unloading of the barrel.
  • a penetration value of 40 micrometers makes it possible to ensure this safety function, while absorbing errors or simply the effect of manufacturing tolerances on the center distance between the axis of oscillation OR of the resonator 10 and the 'exhaust wheel OE axle 20.
  • the torque applied to the escape wheel 20 must be sufficient to push the resonator 100 out of its rest position so that the teeth can pass. This can make self-starting difficult when the resonator is mounted on a flexible guide. Adding the magnetic pads 32 to the paddles greatly improves self-starting for two reasons. First of all, the magnetic repulsion has the effect of reducing the friction between the teeth and the end of the paddles. On the other hand, this repulsion shifts the rest position of the resonator to the appropriate side so that the tooth can pass. The result is that the oscillator is self-starting over the majority of the useful torque range.
  • the effect of the magnets of the third isochronism correction zone Z3 is to produce a small disturbance of the inertial mass 1, so as to adjust the anisochronism of the escapement, so that there is compensation with the anisochronism of the resonator 100.
  • This anisochronism correction is not essential but may prove to be advantageous depending on the type of resonator used.
  • FIG. 23 Another variant is presented at figure 23 in which there are only two small growths 341 on the magnetic barrier 31, in the third zone Z3, which are sufficient to produce the disturbance necessary for the correction of anisochronism.
  • the anisochronism corrector can be placed only on the magnetic paddles of the upper flange 15, or then only on the magnetic paddles of the lower flange 17.
  • the anisochronism is adjustable, by varying the distance between the magnets of the third upper zone Z3 and the magnets of the third lower zone Z3, which has the effect of varying the intensity of the magnetic field. seen by the magnets 23 of the escape wheel 20 when they are in the third zone Z3.
  • the third zone Z3 contains a sacrificial excess of iron or of magnets, this sacrificial excess is intended to be, at least in part, selectively removed according to the result of a measurement of the anisochronism of the oscillator 300 complete, for the reestablishment of its isochronism.
  • the magnetic arrangement 30 is made with a surplus of magnet pixels in the third zone Z3, the surplus magnets can then be removed by selective laser ablation after having carried out an anisochronism measurement.
  • the interaction takes place in attraction rather than repulsion.
  • the invention also relates to a timepiece movement 500 comprising at least one such oscillator 300.
  • the invention also relates to a watch 1000 comprising at least one such movement 500 and / or at least one such oscillator 300.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Micromachines (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Electromechanical Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Magnetic Treatment Devices (AREA)
EP18195530.3A 2018-09-19 2018-09-19 Mecanisme d'echappement d'horlogerie magneto-mecanique optimise Active EP3627242B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18195530.3A EP3627242B1 (fr) 2018-09-19 2018-09-19 Mecanisme d'echappement d'horlogerie magneto-mecanique optimise
JP2019165896A JP6796697B2 (ja) 2018-09-19 2019-09-12 最適化された磁気機械式計時器脱進機機構
US16/571,428 US11567456B2 (en) 2018-09-19 2019-09-16 Optimised magneto-mechanical timepiece escapement mechanism
CN201910884458.0A CN110928170B (zh) 2018-09-19 2019-09-19 优化的磁-机械钟表擒纵机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18195530.3A EP3627242B1 (fr) 2018-09-19 2018-09-19 Mecanisme d'echappement d'horlogerie magneto-mecanique optimise

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EP3627242A1 EP3627242A1 (fr) 2020-03-25
EP3627242B1 true EP3627242B1 (fr) 2021-07-21

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US (1) US11567456B2 (zh)
EP (1) EP3627242B1 (zh)
JP (1) JP6796697B2 (zh)
CN (1) CN110928170B (zh)

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EP3910425A1 (fr) * 2020-05-13 2021-11-17 The Swatch Group Research and Development Ltd Mouvement horloger comprenant un echappement muni d'une roue dentee et d'un arretoir
EP4012506A1 (fr) * 2020-12-14 2022-06-15 The Swatch Group Research and Development Ltd Mécanisme resonateur d'horlogerie muni d'une table de translation

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WO2015097172A2 (fr) 2013-12-23 2015-07-02 The Swatch Group Research And Development Ltd Dispositif regulateur de la vitesse angulaire d'un mobile dans un mouvement horloger comprenant un echappement magnetique
EP2894522B1 (fr) 2013-12-23 2019-01-30 Nivarox-FAR S.A. Echappement optimisé avec sécurité
EP2889704B1 (fr) 2013-12-23 2017-11-08 Nivarox-FAR S.A. Mécanisme d'échappement à cylindre d'horlogerie sans contact
JP6196736B2 (ja) 2013-12-23 2017-09-13 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 計時器用同期機構
EP2891929B1 (fr) 2013-12-23 2017-11-22 Nivarox-FAR S.A. Résonateur magnétique ou électrostatique
EP2908184B1 (fr) 2014-02-17 2017-10-18 The Swatch Group Research and Development Ltd. Procédé d'entretien et de régulation d'un résonateur d'horlogerie
EP2908185B1 (fr) 2014-02-17 2017-09-13 The Swatch Group Research and Development Ltd. Dispositif d'entretien et de régulation d'un résonateur d'horlogerie
EP2911012B1 (fr) 2014-02-20 2020-07-22 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oscillateur de pièce d'horlogerie
CH710537A2 (fr) 2014-12-18 2016-06-30 Swatch Group Res & Dev Ltd Oscillateur d'horlogerie à diapason.
EP3035126B1 (fr) 2014-12-18 2017-12-13 The Swatch Group Research and Development Ltd. Résonateur d'horlogerie à lames croisées
EP3054357A1 (fr) 2015-02-03 2016-08-10 ETA SA Manufacture Horlogère Suisse Mécanisme oscillateur d'horlogerie
EP3128380B1 (fr) 2015-08-04 2018-11-21 ETA SA Manufacture Horlogère Suisse Mécanisme régulateur d'horlogerie à bras rotatifs synchronisé magnétiquement
EP3182214A1 (fr) 2015-12-16 2017-06-21 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Oscillateur mécanique pour pièce d'horlogerie, mécanisme de réglage comportant cet oscillateur mécanique, et mouvement d'horlogerie
EP3208667A1 (fr) 2016-02-18 2017-08-23 The Swatch Group Research and Development Ltd Mobile d'echappement magnetique d'horlogerie
JP7012657B2 (ja) 2016-03-14 2022-01-28 エルヴェエムアッシュ・スイス・マニュファクチャーズ・エスアー 時計のための装置、このような装置を備える時計仕掛けムーブメントおよび時計
EP3339982B1 (fr) 2016-12-23 2021-08-25 The Swatch Group Research and Development Ltd Régulation par freinage mécanique d'un oscillateur mécanique horloger

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JP2020046426A (ja) 2020-03-26
EP3627242A1 (fr) 2020-03-25
JP6796697B2 (ja) 2020-12-09
US20200089168A1 (en) 2020-03-19
CN110928170A (zh) 2020-03-27
US11567456B2 (en) 2023-01-31

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