EP3128379A1 - Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung - Google Patents

Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung Download PDF

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Publication number
EP3128379A1
EP3128379A1 EP15179709.9A EP15179709A EP3128379A1 EP 3128379 A1 EP3128379 A1 EP 3128379A1 EP 15179709 A EP15179709 A EP 15179709A EP 3128379 A1 EP3128379 A1 EP 3128379A1
Authority
EP
European Patent Office
Prior art keywords
potential
zone
exhaust mechanism
escape wheel
track
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.)
Granted
Application number
EP15179709.9A
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English (en)
French (fr)
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EP3128379B1 (de
Inventor
Gianni Di Domenico
Jérôme Favre
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.)
Swatch Group Research and Development SA
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Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP15179709.9A priority Critical patent/EP3128379B1/de
Priority to US15/222,517 priority patent/US10054908B2/en
Priority to JP2016152553A priority patent/JP6290991B2/ja
Priority to CN201610630224.XA priority patent/CN106444336B/zh
Publication of EP3128379A1 publication Critical patent/EP3128379A1/de
Application granted granted Critical
Publication of EP3128379B1 publication Critical patent/EP3128379B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/026—Devices allowing the motion of a rotatable part in only one direction with clamping member
    • 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
    • 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
    • G04C3/06—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 using electromagnetic coupling between electric power source and balance
    • 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
    • G04C3/06—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 using electromagnetic coupling between electric power source and balance
    • G04C3/065—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 using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/066—Constructional details, e.g. disposition of coils
    • 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
    • G04C3/06—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 using electromagnetic coupling between electric power source and balance
    • G04C3/065—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 using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/067—Driving circuits with distinct detecting and driving coils
    • 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

Definitions

  • the invention relates to a watch exhaust mechanism comprising at least one resonator and at least one escape wheel arranged to cooperate with a said resonator mechanism, either directly or indirectly through a stopper that includes said escape mechanism, said escape wheel comprising a succession of tracks carrying potential ramps of magnetic or electrostatic field, said ramps being arranged to cooperate with said resonator or respectively with said stop.
  • the invention also relates to a watch movement comprising at least one such escape mechanism.
  • the invention also relates to a watch comprising at least one such escape mechanism.
  • the invention relates to the field of exhaust mechanisms for mechanical watchmaking, and more particularly the field of controlled field escapements, known as magnetic exhausts, or electrostatic exhausts, or the like.
  • Such a device significantly improves the efficiency of the exhaust, due to reduced or non-existent contacts.
  • its development is especially effective when the operation is not too abrupt. This is indeed to mitigate rebounds of the escape wheel, which can, if they are not controlled, lead to an unstable situation.
  • the escape wheel provides spiral balance a certain amount of energy, from a barrel or other similar accumulator. The excess kinetic energy of the escape wheel is dissipated when one of its teeth falls on the rest plane of the pallet of the anchor, during the fall. This shock, very intense, effectively prevents the escape wheel from bouncing.
  • a non-return device such as a ratchet or the like in an exhaust device with a stop cooperating with a balance plate, and with magnetic or electrostatic field barriers, in particular in the form of a magnetic anchor, is to prevent the escape wheel from bouncing on the magnetic barriers, or electrostatic as appropriate.
  • the invention proposes to block the rebounds of such a magnetic or electrostatic exhaust device, by adding a non-return device, which makes it possible to temporarily store the energy of the escape wheel in the magnetic potential or electrostatic, in order to be able to return it to the balance or the like during the exhaust function, which has the effect of significantly increase the efficiency of this type of exhaust, especially when the torque provided by the barrel or the accumulator is high.
  • the invention is concerned with increasing the energy efficiency of the escapement mechanism and the movement.
  • the invention relates to a clock escapement mechanism according to claim 1.
  • the invention also relates to a watch movement comprising at least one such escape mechanism.
  • the invention also relates to a watch comprising at least one such escape mechanism.
  • the invention proposes a simple and reliable solution for controlling the rebounds of a magnetic or electrostatic exhaust device, by adding a non-return device, which makes it possible to increase the efficiency of this type exhaust, especially when the torque provided by the barrel or the accumulator is high.
  • This non-return mechanism makes it possible to accumulate the energy of the barrel or similar, to restore it in the resonator.
  • the invention relates to a horological escapement mechanism 200 comprising at least one resonator 100.
  • the escape mechanism 200 comprises at least one escapement mobile. This mobile is described and illustrated here in the particular and non-limiting case of an escape wheel 1, but it can take other forms, such as a cylinder, or other.
  • the escape mechanism 200 comprises at least one escape wheel 1, which is arranged to cooperate with such a resonator mechanism 100, either directly or indirectly through a stop 2 which comprises this exhaust mechanism 200.
  • a stopper escapement this stopper 2 being constituted in a particular example, again non-limiting, by a pivoting anchor comprising, as the case may be, a single polar mass 3 arranged to cooperate alternately with tracks of the escape wheel comprising magnetic or electrostatic fields of variable intensity, or two polar masses 3 arranged to cooperate alternately with at least one track 4 of the escape wheel 1 comprising magnetic or electrostatic fields d variable intensity.
  • the invention also applies to other types of exhaust mechanisms, cylinder, natural, or other, in the case of direct cooperation without stop.
  • the escape wheel 1 comprising a succession of tracks 4, or alternatively, according to the variants described below 40, 41, 42. These tracks 4 carry ramps 6 of increasing magnetic or electrostatic field potential. These ramps 6 are arranged to cooperate with the resonator 100, or respectively with the stopper 2.
  • this escapement mechanism 200 comprises at least one anti-return device 5, which is arranged to oppose the return of the escape wheel 1, that is to say to prevent it from backward from its normal direction of rotation.
  • the escapement mechanism 200 comprises a stopper 2 cooperating on the one hand with a plate that includes the mechanism resonator 100, in particular a balance plate in the case of a balance-spring resonator, and cooperating on the other hand with ramps 6 of magnetic field or electrostatic potential, by at least one polar mass 3, or, according to the variants described below 30, 31, 32, that includes this stop 2.
  • This polar mass 3 is arranged to evolve in the field corresponding to these ramps 6 of magnetic or electrostatic field potential.
  • the figure 1 resumes the lessons of the request EP28871573 , relating to a magnetic escapement device 200 with a single polar pole retainer 2 pivoting so as to cooperate alternately with an inner track and an outer track, as shown in FIG. figure 10 .
  • This diagram illustrates the variation of the potential energy, along the ordinate, along the magnetized tracks, as a function of the angle at the center on the abscissa, for each of the two tracks of the figure 1 : internal track in solid line, and outer track in broken lines, each comprising a succession of magnetized zones with different intensities, and exerting different repulsion efforts in interaction with the polar mass of the anchor when the latter is in their vicinity immediately, the zones immediately adjacent to the two concentric neighboring tracks being also of different magnetization level.
  • This figure 1 shows the accumulation of potential energy taken from the escape wheel 1 on the sections P1-P2 and P3-P4 each corresponding to half a period, and its restitution by the anchor 2 to the pendulum during the change of track of polar mass P2-P3 and P4-P5.
  • This figure 1 shows a particular position PP, at a significant slope change between a ramp 6 and a potential barrier 7 which extends it, around which position PP bounces are damped due to the play of the potential slopes of the fields.
  • the value ER denotes the energy of the ramp 6 at this point, that is to say the difference between the energy level of this particular point PP, and the minimum potential level of the tracks 4 of the escape wheel 1 .
  • the energy dissipation during rebounds is conventionally done by friction, at least partially viscous, especially at the pivots, and aerodynamic losses, as visible on the figure 2 .
  • the tipping point is fixed, perfectly reproducible, and the transmitted energy is constant.
  • the anchor always switches to the same position, at the foot of the magnetic barrier when it exists (which is not always the case, one can also have the combination of a simple ramp and a mechanical stop to play the role of the potential barrier).
  • the stopper or anchor therefore always transmits the same amount of energy to the balance, which makes it a system with constant force, the surplus being dissipated by rebounds.
  • the triangular zone represents the absolute amount of energy lost by the rebounds of the magnetic wheel.
  • the figure 4 shows, in the same order, the same quantities which are represented in relative values with respect to the total power supplied to the escape wheel. This figure 4 shows that, when the torque of the barrel is high, the proportion of energy lost (not transmitted to the sprung balance) in rebounds becomes very important, almost 50%. Full removal of bounces is not possible.
  • the invention is compelled to minimize as much as possible these rebounds by adding a non-return device, such as a ratchet or the like, acting on the escape wheel.
  • a non-return device such as a ratchet or the like
  • the exhaust can therefore transfer more energy to the sprung balance.
  • the yield is improved.
  • the system loses its constant force characteristic and becomes a variable force exhaust with the torque, like a traditional Swiss anchor escapement.
  • the stop 2 comprises a polar mass 3 which is a single polar mass 30 arranged to cooperate successively and alternately with two tracks 4 which are a first track 41 and a second track 42.
  • the stopper 2 comprises two polar masses 3, which are a first polar mass 31 and a second polar mass 32, arranged to cooperate successively and alternately with a track 4 which is a single track 40.
  • the escape wheel 1 comprises, arranged periodically in a pitch P, a plurality of useful zones ZU, each located between, on the one hand, a zone of minimum potential of such a track 4, 40, 41, 42, given, and on the other hand a zone of maximum potential of such a track 4, 40, 41, 42, which zone of maximum potential immediately follows the zone of potential minimum considered of this given track.
  • the magnetic or electrostatic field potential ramps 6 disposed on these tracks 4, 40, 41, 42 each comprise a potential barrier 7 at their end of maximum field potential, tending to oppose its crossing by a polar mass 3 of the stop 2.
  • each ramp 6 is extended by a barrier 7 of magnetic or electrostatic field, this barrier 7 comprising immediately following the ramp 6, at the particular point PP, a first zone 71 of rapid growth potential whose gradient is greater than the maximum gradient of the ramp 6 concerned.
  • This first zone 71 is followed by a second zone 72 of potential maximum where the concavity of the potential curve is inverted with respect to the first zone 71.
  • the second zone 72 is immediately followed by a third zone 73 of potential decay. where the concavity of the potential curve is reversed with respect to the second zone 72, and this third zone 73 ends with a fourth zone 74 of minimum potential.
  • each useful zone ZU is located between, on the one hand, a fourth zone 74 of potential minimum of a said track 4, 40, 41, 42, given, and on the other hand a second zone 72 of maximum potential of such a track 4, 40, 41, 42, immediately following this fourth zone 74 of potential minimum of this given track. And each crossing of such a second region 72 of maximum potential of a track 4, 40, 41, 42, by such a polar mass 3, 30, 31, 32, corresponds to a tilting of the stopper 2.
  • each said first zone 71 immediately follows the fourth zone 74 preceding.
  • each first zone 71 immediately follows the fourth zone 74 previous.
  • each first zone 71 is separated from the fourth zone 74 preceding by a fifth zone 75 of constant potential or zero.
  • each first zone 71 is separated from the fourth zone 74 preceding by a fifth zone 75 of constant or zero potential.
  • the ramps 6 of magnetic or electrostatic field potential arranged on the lanes 4 have no potential barrier at their maximum potential end, and the tracks 4 each comprise alternating zones of zero potential and such ramps 6. And, advantageously, in such cases, the ramps 6 of potential of magnetic or electrostatic field disposed on the tracks 4, 40, 41, 42, are each associated, at its zone of maximum potential, with a mechanical stop preventing its crossing by a polar mass 3 of the stop 2
  • the non-return device 5 may comprise, without limitation: a compression pawl 51, a traction pawl 52, an internal compression pawl 53, or an inner pull pawl, or combinations of these different pawls, or any other mechanism tending to oppose the retreat of the escape wheel 1.
  • the figure 6 shows a compression pawl 51 comprising a first elastic connection with a first fixed part of the escape mechanism 200 outside the stop 2 and the escape wheel 1, this compression pawl 51 cooperates with at least one fixed toothing 10 in pivoting of the escape wheel 1.
  • a single pawl 51 is shown not to overload the figure, but it is clear, as for the other variants, that the mechanism may comprise a plurality of such ratchets, including types different. In the same way, the mechanism may comprise several teeth, for example above and below the median plane of the wheel 1, and possibly alternately.
  • this at least one toothing 10 is a toothing with wolf teeth, allowing the advance of the escape wheel 1 by sliding on the compression pawl 51 and opposing the retreat of the escape wheel 1 subjecting this at least one compression pawl 51 to a buckling force when the escape wheel 1 tends to recoil.
  • the non-return device 5 comprises at least one traction pawl 52 comprising a second elastic connection with a second fixed part of the escape mechanism 200 outside the stop 2 and the escape wheel 1.
  • This at least one pulling pawl 52 cooperates with this at least one toothing 10, and is arranged to operate in traction and exert on the escape wheel 1 a torque tending to advance, when the escape wheel 1 tends to move back.
  • This pulling pawl 52 can be either constituted by the previous compression pawl 51, consisting of a separate ratchet.
  • the toothing 10 is preferably arranged in a similar manner to the previous case.
  • the ratchet is loaded onto the escape wheel and the teeth are arranged on a fixed wheel.
  • the non-return device 5 then comprises at least one inner compression pawl 53 comprising a third elastic connection with the escape wheel 1 and cooperating with at least one toothing 10 that comprises a toothed ring internally fixed on a fixed part of the mechanism of Exhaust 200 outside the stop 2 and the escape wheel 1.
  • this at least one set of teeth 10 periodically comprises, in alternation with zones provided with teeth 11, zones devoid of teeth 12 to minimize losses when the non-return function is not necessary, when said polar mass 3 the stop 2 cooperates with a zone 8 of zero potential (or zero gradient: constant potential) of a track 4, 40, 41, 42, or a low potential area of a ramp 6.
  • the at least one toothing 10 must have at least one tooth 13 on each useful zone ZU. This reduces the cost of cutting or cutting teeth.
  • the figure 10 shows three teeth 13 only for each useful zone ZU.
  • this at least one toothing 10 comprises, on the zones provided with teeth that it comprises, at least twenty times more teeth than the escape wheel 1 does not have P steps (also called tooth equivalents ), each pitch P corresponding to the race between two successive tilts of the stop 2.
  • P steps also called tooth equivalents
  • the figure 6 illustrates a variant of non-return device constituted by a pawl on the magnetic escape wheel.
  • the pawl has a high resolution, which ensures that the anti-return wheel is performed correctly.
  • the anti-return device comprises at least twenty times more teeth than there are teeth equivalents to the escape wheel.
  • the arming of the ratchet teeth consumes a little energy and alters the performance of the exhaust. It is possible to minimize this problem by placing teeth only in the functional regions, as shown on the diagram. figure 7 .
  • the auto-start of the exhaust is then also improved, provided that the ratchet blade is not too pre-armed.
  • the figure 7 thus shows areas spared, so as to minimize losses, in areas of work where the anti-return function is not necessary, that is to say in areas of lower (or zero) potential of field.
  • the figures 6 and 7 show a first variant where the pawl comprises an elastic blade, which works in compression when the wheel tries to move back.
  • a second variant, in figure 8 relates to a pawl that works in traction, when the wheel tends to move back.
  • the presence of a non-return device offers another advantage that combines with the advantages of operation: the magnetic potential may be lower, which simplifies the manufacture of magnets, and lowers costs.
  • Another combination is to use the original potential, but with a cylinder dimensioned to the fair, so much less bulky, which is still sought after in watchmaking, especially in the case of ladies' watches or watches with complications.
  • the figure 9 illustrates another simplified embodiment, with magnetic or electrostatic tracks without a field barrier, only with alternating ramps, with zones of zero potential, interspersed between the ramps, as shown in figure 8 .
  • the start is further simplified, and the usable torque range is even greater.
  • exhaust mechanisms according to the invention is possible both with traditional technologies, including milling or stamping, or laser machining to obtain a higher resolution, appreciable for the machining of the toothing 10.
  • the invention also relates to a watch movement comprising at least one such escape mechanism.
  • the invention also relates to a watch comprising at least one such escape mechanism
  • the anti-return device makes it possible, at the cost of a low-cost and limited space arrangement, to obtain a large increase in the efficiency of the exhaust mechanism, and consequently of the power reserve of the movement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Micromachines (AREA)
  • Transmission Devices (AREA)
EP15179709.9A 2015-08-04 2015-08-04 Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung Active EP3128379B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15179709.9A EP3128379B1 (de) 2015-08-04 2015-08-04 Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung
US15/222,517 US10054908B2 (en) 2015-08-04 2016-07-28 Escapement with escape wheel with field ramps and non-return
JP2016152553A JP6290991B2 (ja) 2015-08-04 2016-08-03 場上昇部及び戻り止め部をもつ脱進車を有する脱進機
CN201610630224.XA CN106444336B (zh) 2015-08-04 2016-08-03 包括具有场斜坡的擒纵轮和止回装置的擒纵机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15179709.9A EP3128379B1 (de) 2015-08-04 2015-08-04 Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung

Publications (2)

Publication Number Publication Date
EP3128379A1 true EP3128379A1 (de) 2017-02-08
EP3128379B1 EP3128379B1 (de) 2019-10-02

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EP15179709.9A Active EP3128379B1 (de) 2015-08-04 2015-08-04 Hemmung mit hemmungsrad mit feldrampen und vorrichtung zur rücklaufsicherung

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US (1) US10054908B2 (de)
EP (1) EP3128379B1 (de)
JP (1) JP6290991B2 (de)
CN (1) CN106444336B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757682A1 (de) 2019-06-26 2020-12-30 The Swatch Group Research and Development Ltd Uhrwerk, das einen magnetischen hemmungsmechanismus umfasst
EP3767397A1 (de) 2019-07-19 2021-01-20 The Swatch Group Research and Development Ltd Uhrwerk mit einem drehelement, das eine magnetisierte struktur mit periodischer konfigurierung besitzt

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EP3316046B1 (de) * 2016-10-25 2019-07-31 The Swatch Group Research and Development Ltd Verbessertes uhrwerk
JP6901877B2 (ja) * 2017-03-13 2021-07-14 セイコーインスツル株式会社 脱進機、時計用ムーブメント及び時計
EP3663868B1 (de) * 2018-12-07 2021-09-08 Montres Breguet S.A. Uhrwerk, das ein tourbillon mit einem festen magnetischen rad umfasst
EP3971655A1 (de) * 2020-09-18 2022-03-23 ETA SA Manufacture Horlogère Suisse Stossdämpfungsschutz mit anschlag eines resonatormechanismus mit flexibler drehführung
CN112433458B (zh) * 2020-11-23 2021-09-03 深圳市精准时计科技有限公司 设有定位装置的钟表机芯

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CH17033A (de) * 1898-05-18 1899-03-31 Wilhelm Goebel Gesperre für Federzugwerke an Uhrwerken
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EP2889704A2 (de) * 2013-12-23 2015-07-01 Nivarox-FAR S.A. Kontaktloser Zylindrische Uhrhemmungsmechanismus

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EP2790067A1 (de) * 2013-04-12 2014-10-15 Montres Breguet SA Hemmungssystem für einen Spiralunruh-Schwinger
CH709059B1 (fr) 2013-12-23 2020-03-31 Swatch Group Res & Dev Ltd Mécanisme d'horlogerie comportant une interaction entre deux composants par des moyens d'actionnement exerçant un effort sans contact.
JP6087895B2 (ja) * 2013-12-23 2017-03-01 ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド 磁気脱進機機構を含む時計ムーブメント内のホイールセットのための角速度調節デバイス
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Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US101398A (en) * 1870-03-29 Improvement in watches
CH17033A (de) * 1898-05-18 1899-03-31 Wilhelm Goebel Gesperre für Federzugwerke an Uhrwerken
FR1258417A (fr) * 1960-03-02 1961-04-14 Lip Sa Dispositif anti-retour silencieux pour moteur électrique ou autre
BE680716A (de) * 1965-07-29 1966-10-17
FR2883276A1 (fr) * 2005-03-18 2006-09-22 Silmach Soc Par Actions Simpli Procede et dispositif pour deplacer un element a entrainer utilisant un element actionneur forme par gravure dans un materiau semi-conducteur
EP2887157A1 (de) 2013-12-23 2015-06-24 The Swatch Group Research and Development Ltd. Optimierte Uhrhemmung
EP2889704A2 (de) * 2013-12-23 2015-07-01 Nivarox-FAR S.A. Kontaktloser Zylindrische Uhrhemmungsmechanismus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3757682A1 (de) 2019-06-26 2020-12-30 The Swatch Group Research and Development Ltd Uhrwerk, das einen magnetischen hemmungsmechanismus umfasst
EP3767397A1 (de) 2019-07-19 2021-01-20 The Swatch Group Research and Development Ltd Uhrwerk mit einem drehelement, das eine magnetisierte struktur mit periodischer konfigurierung besitzt

Also Published As

Publication number Publication date
CN106444336B (zh) 2019-03-29
JP2017032564A (ja) 2017-02-09
US20170038737A1 (en) 2017-02-09
EP3128379B1 (de) 2019-10-02
JP6290991B2 (ja) 2018-03-07
US10054908B2 (en) 2018-08-21
CN106444336A (zh) 2017-02-22

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