EP3312683B1 - Mouvement mecanique d'horlogerie avec resonateur a deux degres de liberte avec mecanisme d'entretien par galet roulant sur une piste - Google Patents

Mouvement mecanique d'horlogerie avec resonateur a deux degres de liberte avec mecanisme d'entretien par galet roulant sur une piste Download PDF

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Publication number
EP3312683B1
EP3312683B1 EP16194289.1A EP16194289A EP3312683B1 EP 3312683 B1 EP3312683 B1 EP 3312683B1 EP 16194289 A EP16194289 A EP 16194289A EP 3312683 B1 EP3312683 B1 EP 3312683B1
Authority
EP
European Patent Office
Prior art keywords
movement
resonator
track
ring
freedom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16194289.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3312683A1 (fr
Inventor
Pascal Winkler
Gianni Di Domenico
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP16194289.1A priority Critical patent/EP3312683B1/fr
Priority to CH01392/16A priority patent/CH713056A2/fr
Priority to RU2017135224A priority patent/RU2749944C2/ru
Priority to JP2017199152A priority patent/JP6420440B2/ja
Priority to CN201710962956.3A priority patent/CN107957672B/zh
Priority to US15/785,874 priority patent/US10671021B2/en
Publication of EP3312683A1 publication Critical patent/EP3312683A1/fr
Priority to HK18113083.1A priority patent/HK1253934A1/zh
Application granted granted Critical
Publication of EP3312683B1 publication Critical patent/EP3312683B1/fr
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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • 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
    • G04B1/00—Driving mechanisms
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/02—Escapements permanently in contact with the regulating mechanism
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/08—Oscillators with coil springs stretched and unstretched axially
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/26—Compensation of mechanisms for stabilising frequency for the effect of variations of the impulses
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • 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
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings
    • 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

Definitions

  • the invention relates to a watch movement for a mechanical watch, comprising, arranged on a plate, a resonator mechanism and a maintenance mechanism subjected to the pair of motor means that includes said movement.
  • the invention also relates to a mechanical watch comprising at least one such movement.
  • the invention relates to the field of resonator mechanisms constituting the time bases of mechanical watches.
  • the exhaust mechanism must be strong, shock-resistant, and designed to avoid pinching the movement (overturning).
  • a mechanical resonator combines at least one inertial element and an elastic return element.
  • the spiral acts as an elastic return element for the inertial element that constitutes the balance.
  • the balance is conventionally guided in rotation by pivots which rotate in smooth ruby bearings. This gives rise to friction, and therefore to energy losses and disturbances, which we seek to remove.
  • the losses are characterized by the quality factor Q. We seek to maximize this Q factor.
  • the Swiss lever escapement has a low fuel efficiency (about 30%). This low performance comes from the fact that the movements of the exhaust are jerky, that there are “falls” (path lost to accommodate machining errors) and, also, that several components are transmitted their movement via inclined planes that rub against each other.
  • the patent application EP2908189 in the name of ETA Manufacture Horlogère Suisse describes a synchronization mechanism of two clockwork oscillators with a gear train, where a watchmaking mechanism comprises, mounted mobile, at least pivotally relative to a plate, an arranged escape wheel to receive a motor torque via a train, and a first oscillator having a first rigid structure connected to this plate by first elastic return means.
  • This regulating mechanism comprises a second oscillator, which comprises a second rigid structure, which is connected to the first rigid structure by second elastic return means, and which comprises guide means arranged to cooperate with complementary guide means that includes the escape wheel, synchronizing the first oscillator and the second oscillator with the wheel.
  • This clock oscillator comprises coupling means for the interaction of the primary resonators, comprising motor means for driving a mobile in motion which comprises driving and guiding means arranged to drive and guide an articulated control means with means for transmission each articulated, remote control means, with a mass of a primary resonator, and the primary resonators and the mobile are arranged such that the axes of the joints of any two of the primary resonators and the axis of articulation of the control means are never coplanar.
  • the present invention aims to eliminate the saccades of the maintenance mechanism of a resonator, including an exhaust mechanism, to increase the performance of this maintenance mechanism.
  • the invention relates to a watch movement according to claim 1.
  • the invention also relates to a mechanical watch comprising at least one such movement.
  • the invention relates to a mechanical watch 1000, which is provided with a movement 500 which comprises, mounted on a plate 1, a resonator 100 with two degrees of freedom, a first degree of freedom DDL1 and a second degree of freedom DDL2, and a maintenance mechanism 200, subjected to the pair of motor means 300 that includes the movement 500.
  • this maintenance mechanism 200 is a continuous maintenance mechanism, and comprises a crank 7 movable about a crank axis of rotation DM, and which comprises, along the axis of DM hand crank rotation, an axial element 71 subjected to the torque of the motor means 300, in particular at an exhaust pinion 4 or the like.
  • the crank 7 comprises a crank pin 72 eccentric with respect to the crank axis of rotation DM.
  • This crank pin 72 is arranged to traverse a track 82 of a rigid ring 8 that includes the resonator mechanism 100.
  • This rigid ring 8 is movable according to the two degrees of freedom.
  • the ring 8 is movable in a plane P defined by the two degrees of freedom.
  • this rigid ring 8 is subjected to the action of elastic return means 3 according to the two degrees of freedom.
  • the track 82 is of revolution about a contour axis DC perpendicular to the plane P.
  • the track 82 is cylindrical.
  • the figure 4 illustrates such a variant in plan, where an inertial element 2 carrying the ring 8 is suspended by two flexible blades 3Y parallel to an intermediate part 9, which is suspended by two flexible blades 3X parallel to each other but perpendicular to the blades 3Y , at the turntable 1
  • the track 82 is flat.
  • crank axis of rotation DM is perpendicular to the plane P.
  • crank pin 72 has a symmetry of revolution about a crank axis DG perpendicular to the plane P.
  • crank pin 72 has a symmetry of revolution about a crank axis DG parallel to the plane P.
  • the crank pin 72 comprises a roller 74 of revolution about the crankpin axis DG, and freely rotating about the crankpin axis DG, and whose periphery travels the track 82.
  • crank pin 72 which runs along the track 82 is ruby.
  • the track 82 is an inner track of the rigid ring 8, which has, inside and at a distance from the contour 82, a hub 83 which defines with the track 82 a groove 84 in which the crank pin 72 passes, the throat 84 constituting a security preventing any separation between the crank 7 and the resonator 100 in case of shock, or in the event of a phase shift between the two degrees of freedom of the resonator 100.
  • the track 82 and the hub 83 are concentric.
  • the two degrees of freedom of the resonator mechanism 100 are rotations around the center of inertia CI of an inertial element 2 of the resonator 100 comprising the ring 8.
  • the oscillation period of the resonator mechanism 100 according to the first degree of freedom DDL1 and the oscillation period of the resonator mechanism 100 according to the second degree of freedom DDL2 are substantially identical. More particularly, these periods are equal.
  • the resonator mechanism 100 comprises an inertial element 2 comprising the ring 8, the inertial element comprising flyweights for adjusting the inertia and unbalance.
  • the resonator mechanism 100 comprises a single inertial element 2, rigidly connected to the ring 8, or constituted by this ring 8.
  • the resonator mechanism 100 comprises two inertial elements 2A, 2B, oscillating with a quarter-time phase shift, and each linked to the ring 8 in a flexible manner, in a direction perpendicular to that around which the inertial element oscillates 2A, 2B considered.
  • each inertial element 2A, 2B is connected to the plate 1 by means of a flexible guide with crossed blades 31, 32, defining a virtual axis of rotation passing through the center of inertia CI of the inertial element 2A. , 2B, considered.
  • the resonator mechanism 100 with two degrees of freedom is a resonator with flexible guides, comprising flexible blades arranged to guide at least one inertial element 2 of the resonator 100 and / or the ring 8, and to provide the elastic return of this inertial element 2 and / or of this ring 8.
  • the flexible blades are "élinvar".
  • the flexible blades are made of oxidized silicon in order to compensate for the effects of temperatures.
  • the elastic return means are constituted by flexible rotary guides without a pivot.
  • the elastic return means together form a monolithic component.
  • the elastic return means comprise flexible guides with two blades which are either crossed in the same plane or blades located in two parallel parallel planes and whose projections intersect in a parallel plane.
  • the actual or projection point of intersection of the two blades is advantageously located at a point between 0.12 and 0.14 times their length, and these blades form between them an angle of between 60 and 80 degrees.
  • the maintenance mechanism 200 comprises drive means 40, with a slot 42 arranged to guide a roller 45.
  • This roller 45 is arranged to roll on an annular track 250 that includes the inertial mobile 2, which track 250 constitutes Complementary continuous drive means 20.
  • the roller 45 thus imparts to the inertial element a deported force, and a torque, which tends to impart to the inertial element 2 a precession movement, in the manner of a workpiece.
  • the continuous maintenance mechanism then consists of a ring bearing the annular track 250, and integral with the inertial element 2, driven in a precession movement by the wheel 4 to roller 45, subjected to the torque of the motor means 300, in particular at least one barrel, the wheel 4 rotating along an axis perpendicular to the plane defined by the axes of rotation of the two flexible rotations.
  • the invention also concerns a timepiece, in particular a mechanical watch 1000, comprising such a movement 500.
  • the figure 10 shows experimental results, in the form of diagrams showing, as a function of the abscissa torque, in microN.m: A the amplitude in mm; PR the regulating power in mW, M walking in s / day, and R the yield in%.
  • A the amplitude in mm
  • PR the regulating power in mW
  • M walking in s / day
  • R the yield in%.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Electric Clocks (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP16194289.1A 2016-10-18 2016-10-18 Mouvement mecanique d'horlogerie avec resonateur a deux degres de liberte avec mecanisme d'entretien par galet roulant sur une piste Active EP3312683B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP16194289.1A EP3312683B1 (fr) 2016-10-18 2016-10-18 Mouvement mecanique d'horlogerie avec resonateur a deux degres de liberte avec mecanisme d'entretien par galet roulant sur une piste
CH01392/16A CH713056A2 (fr) 2016-10-18 2016-10-18 Mouvement mécanique d'horlogerie avec résonateur à deux degrés de liberté avec mécanisme d'entretien par galet roulant sur une piste.
RU2017135224A RU2749944C2 (ru) 2016-10-18 2017-10-05 Механический часовой механизм с резонатором, имеющим две степени свободы, и с поддерживающим механизмом, использующим бегунок, перемещающийся по дорожке
JP2017199152A JP6420440B2 (ja) 2016-10-18 2017-10-13 ２つの自由度を有する共振器、及び軌道上を転動する滑り子を使用する維持機構を有する機械式計時器ムーブメント
CN201710962956.3A CN107957672B (zh) 2016-10-18 2017-10-17 包括具有两个自由度的谐振器和使用在轨道上滚动的滚轮的维持机构的机械钟表机芯
US15/785,874 US10671021B2 (en) 2016-10-18 2017-10-17 Mechanical timepiece movement with a resonator having two degrees of freedom with a maintaining mechanism using a runner rolling on a track
HK18113083.1A HK1253934A1 (zh) 2016-10-18 2018-10-12 包括具有兩個自由度的諧振器和使用在軌道上滾動的滾輪的維持機構的機械鐘錶機芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16194289.1A EP3312683B1 (fr) 2016-10-18 2016-10-18 Mouvement mecanique d'horlogerie avec resonateur a deux degres de liberte avec mecanisme d'entretien par galet roulant sur une piste

Publications (2)

Publication Number Publication Date
EP3312683A1 EP3312683A1 (fr) 2018-04-25
EP3312683B1 true EP3312683B1 (fr) 2019-02-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP16194289.1A Active EP3312683B1 (fr) 2016-10-18 2016-10-18 Mouvement mecanique d'horlogerie avec resonateur a deux degres de liberte avec mecanisme d'entretien par galet roulant sur une piste

Country Status (7)

Country Link
US (1) US10671021B2 (ru)
EP (1) EP3312683B1 (ru)
JP (1) JP6420440B2 (ru)
CN (1) CN107957672B (ru)
CH (1) CH713056A2 (ru)
HK (1) HK1253934A1 (ru)
RU (1) RU2749944C2 (ru)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018215284A1 (fr) * 2017-05-24 2018-11-29 Sa De La Manufacture D'horlogerie Audemars Piguet & Cie Dispositif de régulation pour pièce d'horlogerie avec oscillateur harmonique isotrope ayant des masses rotatives et une force de rappel commune
EP3692418A1 (fr) * 2017-10-02 2020-08-12 Manufacture d'Horlogerie Audemars Piguet SA Dispositif de régulation pour pièce d'horlogerie avec oscillateur harmonique ayant des masses rotatives et une force de rappel commune
EP3561607B1 (fr) * 2018-04-23 2022-03-16 ETA SA Manufacture Horlogère Suisse Protection antichoc d'un mécanisme résonateur à guidage flexible rotatif
WO2020016131A1 (en) * 2018-07-16 2020-01-23 Patek Philippe Sa Geneve Flexure pivot oscillator insensitive to gravity
US11409245B2 (en) 2018-11-08 2022-08-09 Eta Sa Manufacture Horlogere Suisse Anti shock protection for a resonator mechanism with a rotary flexure bearing
EP3739394A1 (en) * 2019-05-16 2020-11-18 Ecole Polytechnique Fédérale de Lausanne (EPFL) Crank arrangement for driving a mechanical oscillator
EP3798740B1 (fr) * 2019-09-25 2023-09-06 Blancpain SA Mécanisme d'affichage d'horlogerie à guidage multipistes
EP3926412A1 (fr) * 2020-06-16 2021-12-22 Montres Breguet S.A. Mécanisme régulateur d'horlogerie
EP3982204A1 (fr) * 2020-10-08 2022-04-13 The Swatch Group Research and Development Ltd Resonateur d'horlogerie comportant au moins un guidage flexible

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CH103301A (de) * 1921-11-10 1924-02-01 Schieferstein Heinrich Vorrichtung zur Übertragung von Energie in mechanische Schwingungsform.
CH113025A (de) * 1924-04-28 1925-12-16 Heinrich Schieferstein Georg Verfahren zur Steuerung eines Drehbewegungen ausführenden Mechanismus.
FR2908184B1 (fr) 2006-11-06 2008-12-26 Siemens Vdo Automotive Sas Capteur de pression
DE102010021985A1 (de) * 2010-05-29 2011-12-01 R. Schraewer Hemmungsfreie Gangregulierung mechanischer Uhren
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
RU2629168C1 (ru) * 2013-12-23 2017-08-24 Эта Са Мануфактюр Орложэр Сюис Механизм синхронизации часов
WO2015104693A2 (en) * 2014-01-13 2015-07-16 Ecole Polytechnique Federale De Lausanne (Epfl) General 2 degree of freedom isotropic harmonic oscillator and associated time base without escapement or with simplified escapement
EP2908189A3 (fr) 2014-02-17 2016-06-01 ETA SA Manufacture Horlogère Suisse Mécanisme de synchronisation de deux oscillateurs d'horlogerie avec un rouage
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
CH709536B1 (fr) * 2014-02-17 2018-05-15 Eta Sa Mft Horlogere Suisse Mécanisme régulateur d'horlogerie comportant deux oscillateurs.
JP6111380B2 (ja) * 2014-09-09 2017-04-05 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 等時性が改善された複合共振器
US9958832B2 (en) * 2014-09-09 2018-05-01 Eta Sa Manufacture Horlogere Suisse Method for synchronization of two timepiece oscillators with one gear train
CH710692B1 (fr) 2015-02-03 2021-09-15 Eta Sa Mft Horlogere Suisse Mécanisme oscillateur d'horlogerie.

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
US20180107161A1 (en) 2018-04-19
CN107957672B (zh) 2019-11-08
CH713056A2 (fr) 2018-04-30
RU2017135224A (ru) 2019-04-05
EP3312683A1 (fr) 2018-04-25
RU2749944C2 (ru) 2021-06-21
JP6420440B2 (ja) 2018-11-07
HK1253934A1 (zh) 2019-07-05
JP2018066738A (ja) 2018-04-26
RU2017135224A3 (ru) 2021-01-15
CN107957672A (zh) 2018-04-24
US10671021B2 (en) 2020-06-02

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