US3877215A - Resonator for a timepiece - Google Patents

Resonator for a timepiece Download PDF

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Publication number
US3877215A
US3877215A US423131A US42313173A US3877215A US 3877215 A US3877215 A US 3877215A US 423131 A US423131 A US 423131A US 42313173 A US42313173 A US 42313173A US 3877215 A US3877215 A US 3877215A
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US
United States
Prior art keywords
oscillating device
resonator
fact
frequency oscillating
balance
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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.)
Expired - Lifetime
Application number
US423131A
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English (en)
Inventor
Christof Burckhardt
Dirk Helms
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Ebauches SA
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Ebauches SA
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Publication date
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Publication of US3877215A publication Critical patent/US3877215A/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a plane
    • G04B17/025—Composite and multiple pendulums; Synchronisation of mechanical pendulums, e.g. electrical synchronisation G04C3/025; pendulum systems G04C13/028
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
    • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the 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
    • G04C3/08—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
    • G04C3/107—Controlling frequency or amplitude of the oscillating system

Definitions

  • ABSTRACT A resonator for a timepiece includes a first oscillating device which oscillates at a first low frequency and a second oscillating device which oscillates at a second higher frequency.
  • Each oscillating device includes at least one magnet which moves in accordance with a moving member of its respective oscillating device. The movement of the magnets produces a non-linear magnetic field between the oscillating devices which transmits the energies of one oscillating device to the other for synchronizing the low frequency oscillating device to the higher frequency oscillating device.
  • the present invention relates to a resonator for a timepiece comprising two oscillating devices the proper frequencies and the virtual energies of which are different, the energy transmitting themselves from one to the other by a connecting means having a non linear characteristic, so that the low frequency oscillating device, the virtual energy of which is the lowest, will be synchronized by the high frequency oscillating device the virtual energy of which is the highest.
  • Such resonators are based on the fact that the high frequency oscillating device has a quality factor substantially higher than the other device, that permits it to synchronize this latter.
  • the resonator according to the invention is characterized by the fact that the two oscillating devices comprises each at least one magnet moving with the vibrating member of the respective oscillating device, the magnetic fields produced by the said magnets constituting the connecting means between the two oscillating devices ensuring the transmission of their energies.
  • the high frequency oscillating device is a driving one and pilots the low frequency oscillating device the oscillations of which represent the time and are counted by a time display for presenting the time.
  • the low frequency oscillating device is a driving one and ensures the maintaining of the oscillations of the high frequency oscillating device which, by a feed-back effect, synchronizes it at its turn, the oscillations of the low frequency oscillating device representing the time and being counted and displayed by a time display for presenting the time.
  • the drawing shows, by way of example, three embodiments of the object of the invention which can all the three be used according to one or the other of the two types of operation which have been indicated hereabove.
  • FIGS. 1 and 2 are plan views of two embodiments of a resonator for a timepiece provided with a tuning-fork and with a balance-wheel.
  • FIG. 3 is a perspective view of a third embodiment of a resonator for a timepiece also provided with a tuningfork and with a balance-wheel, and
  • FIGS. 4 to 6 are diagrams of the oscillations of the two oscillating devices of each of the three resonators of FIGS. 1 to 3 respectively.
  • the high frequency oscillating device is a tuning-fork l the two arms la of which carry each a stem 2 at the end of which is secured a permanent magnet 3.
  • the stem 2 of one of the arms la is situated at the vicinity of its end while the stem 2 of the other arm is situated at the vicinity of its root.
  • the low frequency oscillating device is constituted'by a balance-wheel 4 carrying two permanent magnets 5 diametrically opposed.
  • the arrangement is such that, when the balance-wheel 4 occupies its position of equilibrium (point zero), the four magnets 3 and 5 are placed on a same diameter of the balance-wheel 4 which coincides with the medium axis of this tuningfork 1.
  • the magnets 3 carried by the tuning-fork move tangentially with respect to the balance-wheel; the polarity of the several magnets is such that they act on one another, by pairs, by repulsion.
  • FIG. 4 The diagram of the respective oscillations of the two oscillating devices is represented in FIG. 4.
  • the high frequency oscillating device is a tuning-fork 6 the arms 60 of which carry each, at their ends, a permanent magnet 7.
  • the low frequency oscillating device is constituted by a balance? wheel 8 carrying two permanent magnets 9, diametrically opposed.
  • the arrangement is such that, when the balance-wheel 8 occupies its position of equilibrium (point zero), the four magnets 7 and 9 are placed on a same diameter of the balance-wheel 8, which is perpendicular to the median axis of the tuning-fork 6.
  • the magnets 7 carried by the tuning-fork move radially with respect to the balance-wheel; the polarity of the several magnets is such that they act on one another, by pairs, by repulsion.
  • FIG. 5 is similar to this one of FIG. 4, but is related to the embodiment of FIG. 2.
  • the high frequency oscillating device is a tuning-fork 10 one of the arms 10a of which carries, at its end, a permanent magnet 11 and the other arm 10b of which carries a counterweight 12 the weight of which is equal to the weight of the magnet 11.
  • the low frequency oscillating device is constituted by a balance-wheel 13 carrying a permanent magnet 14.
  • the arrangement is such that, when the balancewheel 13 occupies its position of equilibrium (point zero), the two magnets 11 and 14 are situated opposite one another.
  • the direction of the displacements of the magnet 11 of the tuning-fork 10 is parallel to the axis, designated by 15, of the balance-wheel 13; the polarity of the two magnets 11 and 14 is such that they act on one another by repulsion.
  • FIG. 6 is similar to this one of FIGS. 4 and 5 but is related to the embodiment of FIG. 3.
  • one can have two different oscillating modes for the balance-wheel, one represented by the curve X in full line and the other represented by the curve X in dotted line, the frequencies ratio w/Q being of 5 for the first one and of 6 for the second one.
  • This ratio must be, in the case of the embodiment of FIG. 3, of 2, 3, 4, 5, etc..., that is to say an even or uneven whole number.
  • Resonator for a timepiece comprises two oscillating devices the proper frequencies and the virtual energies of which are different, the energy transmitting themselves from one to the other by a connecting means having a non linear characteristic, so that the low frequency oscillating device, the virtual energy of which is the lowest, be synchronized by the high frequency oscillating device the virtual energy of which is the highest, characterized by the fact that the two oscillating devices comprise each at least one magnet moving with the vibrating member of the respective oscillating device, the magnetic fields produced by the said magnets constituting the connecting means between the two oscillating devices ensuring the transmission of their energies.
  • Resonator as claimed in claim 1 arranged in such a way as to realize a frequency division, characterized by the fact that the high frequency oscillating device operates as a driving element and synchronizes the low frequency oscillating device the oscillations of which are counted for displaying time.
  • Resonator as claimed in claim 1 arranged in such a way as to realize a frequency division, characterized by the fact that the low frequency oscillating device operates as a driving element and ensures the maintaining of the high frequency oscillating device which, by a feed-back effect, pilots it at its turn, the oscillations of the low frequency oscillating device being counted for presenting time.
  • Resonator as claimed in claim 1 characterized by the fact that the high frequency oscillating device comprises at least a vibrating blade, the low frequency oscillating device being constituted by a balance-wheel.
  • Resonator as claimed in claim 4 characterized by the fact that the high frequency oscillating device is constituted by a tuning-fork.
  • Resonator as claimed in claim 4 characterized by the fact that the arrangement is such that the magnet carried by the vibrating blade moves tangentially with respect to the balance-wheel.
  • Resonator as claimed in claim 4 characterized by the fact that the arrangement is such that the magnet carried by the vibrating blade moves radially with respect to the balance-wheel.
  • Resonator as claimed in claim 4 characterized by the fact that the arrangement is such that the magnet carried by the vibrating blade moves parallely to the axis of the balance-wheel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
US423131A 1972-12-13 1973-12-10 Resonator for a timepiece Expired - Lifetime US3877215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1810272A CH594201B5 (cs) 1972-12-13 1972-12-13

Publications (1)

Publication Number Publication Date
US3877215A true US3877215A (en) 1975-04-15

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ID=4430463

Family Applications (1)

Application Number Title Priority Date Filing Date
US423131A Expired - Lifetime US3877215A (en) 1972-12-13 1973-12-10 Resonator for a timepiece

Country Status (5)

Country Link
US (1) US3877215A (cs)
JP (1) JPS4998280A (cs)
CH (2) CH1810272A4 (cs)
FR (1) FR2210787B1 (cs)
GB (1) GB1442414A (cs)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011051498A1 (fr) 2009-11-02 2011-05-05 Lvmh Swiss Manufactures Sa Organe réglant pour montre bracelet, et pièce d'horlogerie comportant un tel organe réglant
WO2011051497A1 (fr) 2009-11-02 2011-05-05 Lvmh Swiss Manufactures Sa Organe réglant pour montre bracelet, et pièce d'horlogerie comportant un tel organe réglant
US20140247703A1 (en) * 2011-09-29 2014-09-04 Asgalium Unitec Sa Tuning-Fork Resonator for Mechanical Clock Movement
CN105659168A (zh) * 2014-02-17 2016-06-08 斯沃奇集团研究和开发有限公司 用于维持和调节钟表谐振器的方法
JP2016520845A (ja) * 2013-08-05 2016-07-14 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 機械式腕時計用調整システム
US20160370766A1 (en) * 2013-12-23 2016-12-22 Eta Sa Manufacture Horlogere Suisse Mechanical clock movement with magnetic escapement
US20170211953A1 (en) * 2016-01-27 2017-07-27 Samsung Display Co., Ltd. Display apparatus having indicator needle
CN107111277A (zh) * 2014-12-18 2017-08-29 M·A·让纳雷 用于钟表机芯的振荡器
US10481556B2 (en) 2015-03-04 2019-11-19 Hublot Sa, Geneve Time-keeping movement comprising a regulator with three-dimensional magnetic resonance
US11687041B2 (en) 2018-09-04 2023-06-27 The Swatch Group Research And Development Ltd Timepiece comprising a mechanical oscillator wherein the medium frequency is synchronised on that of a reference electronic oscillator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2466401B1 (fr) 2010-12-15 2013-08-14 Asgalium Unitec SA Résonateur magnétique pour pièce d'horlogerie mécanique
CH708038B1 (fr) * 2013-05-07 2017-12-15 Hublot S A Genève Mouvement horloger à régulateur à résonance tridimensionelle.
EP2908188B1 (fr) * 2014-02-17 2018-06-27 The Swatch Group Research and Development Ltd. Régulation d'un résonateur d'horlogerie par action sur la rigidité d'un moyen de rappel élastique
WO2016037726A1 (fr) * 2014-09-09 2016-03-17 The Swatch Group Research And Development Ltd Résonateur combiné à isochronisme amélioré
US20240126212A1 (en) * 2021-02-17 2024-04-18 Citizen Watch Co., Ltd. Mechanical timepiece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433009A (en) * 1965-08-28 1969-03-18 Kienzle Uhrenfabriken Gmbh Clockwork with torsional or flexible oscillator
US3648453A (en) * 1968-07-19 1972-03-14 Suwa Seikosha Kk Electric timepiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH443748A (fr) * 1965-08-13 1967-09-15 Golay Bernard Sa Dispositif oscillant comprenant un système vibrant primaire et un système vibrant secondaire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433009A (en) * 1965-08-28 1969-03-18 Kienzle Uhrenfabriken Gmbh Clockwork with torsional or flexible oscillator
US3648453A (en) * 1968-07-19 1972-03-14 Suwa Seikosha Kk Electric timepiece

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011051497A1 (fr) 2009-11-02 2011-05-05 Lvmh Swiss Manufactures Sa Organe réglant pour montre bracelet, et pièce d'horlogerie comportant un tel organe réglant
US8534910B2 (en) 2009-11-02 2013-09-17 Lvmh Swiss Manufactures Sa Regulating member for a wristwatch, and timepiece comprising such a regulating member
WO2011051498A1 (fr) 2009-11-02 2011-05-05 Lvmh Swiss Manufactures Sa Organe réglant pour montre bracelet, et pièce d'horlogerie comportant un tel organe réglant
US20140247703A1 (en) * 2011-09-29 2014-09-04 Asgalium Unitec Sa Tuning-Fork Resonator for Mechanical Clock Movement
US9134705B2 (en) * 2011-09-29 2015-09-15 Asgalium Unitec Sa Tuning-fork resonator for mechanical clock movement
JP2016520845A (ja) * 2013-08-05 2016-07-14 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 機械式腕時計用調整システム
US20160370766A1 (en) * 2013-12-23 2016-12-22 Eta Sa Manufacture Horlogere Suisse Mechanical clock movement with magnetic escapement
US9804570B2 (en) * 2013-12-23 2017-10-31 Eta Sa Manufacture Horlogere Suisse Mechanical clock movement with magnetic escapement
US10241473B2 (en) * 2014-02-17 2019-03-26 The Swatch Group Research And Development Ltd Method for maintaining and regulating a timepiece resonator
US20170277124A1 (en) * 2014-02-17 2017-09-28 The Swatch Group Research And Development Ltd. Method for maintaining and regulating the frequency of a timepiece resonator
US20160216693A1 (en) * 2014-02-17 2016-07-28 The Swatch Group Research And Development Ltd Method for maintaining and regulating a timepiece resonator
CN105659168B (zh) * 2014-02-17 2018-04-06 斯沃奇集团研究和开发有限公司 用于维持和调节钟表谐振器的方法
CN105659168A (zh) * 2014-02-17 2016-06-08 斯沃奇集团研究和开发有限公司 用于维持和调节钟表谐振器的方法
US10324416B2 (en) * 2014-02-17 2019-06-18 The Swatch Group Research And Development Ltd. Method for maintaining and regulating the frequency of a timepiece resonator
CN107111277A (zh) * 2014-12-18 2017-08-29 M·A·让纳雷 用于钟表机芯的振荡器
US10133240B2 (en) 2014-12-18 2018-11-20 Marc André JEANNERET Oscillator for timepiece movement
CN107111277B (zh) * 2014-12-18 2020-08-21 M·A·让纳雷 用于钟表机芯的振荡器
US10481556B2 (en) 2015-03-04 2019-11-19 Hublot Sa, Geneve Time-keeping movement comprising a regulator with three-dimensional magnetic resonance
US20170211953A1 (en) * 2016-01-27 2017-07-27 Samsung Display Co., Ltd. Display apparatus having indicator needle
US10451452B2 (en) * 2016-01-27 2019-10-22 Samsung Display Co., Ltd. Display apparatus having indicator needle
US11687041B2 (en) 2018-09-04 2023-06-27 The Swatch Group Research And Development Ltd Timepiece comprising a mechanical oscillator wherein the medium frequency is synchronised on that of a reference electronic oscillator

Also Published As

Publication number Publication date
JPS4998280A (cs) 1974-09-17
FR2210787B1 (cs) 1977-08-19
CH1810272A4 (cs) 1977-02-28
GB1442414A (en) 1976-07-14
DE2362379A1 (de) 1974-07-11
CH594201B5 (cs) 1977-12-30
DE2362379B2 (de) 1976-05-20
FR2210787A1 (cs) 1974-07-12

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