EP3035131A1 - Oszillator für Uhrwerk - Google Patents

Oszillator für Uhrwerk Download PDF

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Publication number
EP3035131A1
EP3035131A1 EP14199074.7A EP14199074A EP3035131A1 EP 3035131 A1 EP3035131 A1 EP 3035131A1 EP 14199074 A EP14199074 A EP 14199074A EP 3035131 A1 EP3035131 A1 EP 3035131A1
Authority
EP
European Patent Office
Prior art keywords
oscillator
balance
bipolar magnet
watch movement
shaft
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.)
Withdrawn
Application number
EP14199074.7A
Other languages
English (en)
French (fr)
Inventor
Marc André Jeanneret
Salvatore Stefano Stifani
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.)
Jeanneret Marc Andre
Original Assignee
Jeanneret Marc Andre
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 Jeanneret Marc Andre filed Critical Jeanneret Marc Andre
Priority to EP14199074.7A priority Critical patent/EP3035131A1/de
Priority to US15/536,063 priority patent/US10133240B2/en
Priority to PCT/EP2015/080679 priority patent/WO2016097384A1/fr
Priority to EP15817822.8A priority patent/EP3234701B1/de
Priority to JP2017532007A priority patent/JP6770518B2/ja
Priority to CN201580067532.XA priority patent/CN107111277B/zh
Publication of EP3035131A1 publication Critical patent/EP3035131A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G04C3/047—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 other coupling means, e.g. electrostrictive, magnetostrictive
    • 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
    • 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
    • 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
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
    • G04B17/222—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature with balances
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • 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

Definitions

  • the present invention relates to an oscillator, for a watch movement, comprising a shaft intended to be pivotally mounted on a frame member of the watch movement and secured to a balance bearing at least a first bipolar magnet, arranged at a distance from the shaft and capable of , depending on the angular position of the balance, to be positioned within range of a magnetic field produced by at least one fixed bipolar magnet, integral with a support intended to be assembled to the frame of the watch movement.
  • Oscillators of this type are already known in the field of watchmaking. Indeed, the manufacture of balance-type oscillators spiral is difficult to master, in particular the realization of spiral springs requires a very sharp and uncommon know-how, which justifies the search for alternative solutions.
  • the patent EP 1805565 B1 describes an oscillator having all the characteristics mentioned above. More specifically, this document describes the construction of an oscillator comprising a beam carrying bipolar magnets associated with fixed bipolar magnets for generating restoring forces on the balance, intended to reproduce the typical movement of a balance associated with a spring. spiral.
  • This balance can be associated with a conventional Swiss lever escapement to ensure the maintenance of oscillations from a source of mechanical energy.
  • the fixed magnets are arranged around the balance, either in the same plane as the latter, or in a parallel plane.
  • a main object of the present invention is to propose a construction making it possible to produce an oscillator for a watch movement, as described above, having no spring-coil, and offering good chronometric results while presenting a simple, robust and not very sensitive to changes in ambient temperature or shocks.
  • the present invention relates more particularly to an oscillator of the type mentioned above, characterized in that the fixed bipolar magnet is located on the path of the first bipolar magnet, as defined by the pivoting of the balance, by being arranged on the support such that when the first bipolar magnet approaches the fixed bipolar magnet, identical polarities are located facing each other to give rise to a repulsive force.
  • the oscillator according to the invention comprises a connecting device, intended to establish a kinematic connection between a power source of the watch movement and the balance shaft, arranged in such a way that the balance is likely to present a periodic oscillating motion maintained.
  • the basic principle of the repulsion occurring between two magnets approaching one another, with identical polarities facing each other makes it possible to generate a force of recall adapted to the implementation of an oscillator for watch movement.
  • the fixed magnet directly fulfills the function of mechanical stop eliminating any risk of runaway of the balance in case of impact.
  • the connecting device comprises a peg secured to the rocker shaft and arranged to cooperate with an escapement, intended to present a kinematic connection with the energy source of the watch movement. , to maintain oscillations of the pendulum. Thanks to these characteristics, the oscillator according to the present invention can be easily implemented in relation to an existing clock caliber, without requiring too much changes.
  • the rocker arm it is possible for the rocker arm to carry a second bipolar magnet similar - and similarly arranged - to the first bipolar magnet to cooperate with the fixed bipolar magnet alternating with the first bipolar magnet, the first and second bipolar magnets having between them an angular difference between 20 and 180 degrees.
  • the present invention also relates to a watch movement comprising an oscillator meeting the above characteristics, as well as a timepiece equipped with such a watch movement.
  • the figure 1 represents a simplified perspective view of a watch movement comprising an oscillator 1 according to a preferred embodiment of the present invention, while the figure 2 represents the watch movement of the figure 1 in a similar but exploded view, to highlight some construction details.
  • the watch movement may be an existing caliber that would be slightly modified to implant the oscillator according to the invention or, alternatively, it may be a new caliber developed specifically, without departing from the scope of the invention.
  • the watch movement comprises a frame, in particular here a plate 2 machined in a conventional manner to support all or part of the motions of the movement.
  • the board typically supports a power source, such as a spring housed in a barrel (not shown), for maintaining the oscillations of the oscillator 1 through a finishing train (not shown).
  • the oscillator 1 comprises a rocker 4 of substantially conventional general shape, that is to say that it comprises a hub 6 from which extends at least one arm 8 for connecting a serge 10 to the hub.
  • the rocker 4 is secured to a shaft 12 by which it is pivotally mounted on the frame of the watch movement.
  • a first end 14 of the shaft 12 is here pivoted in a first bearing formed in the plate 2, while the other end 16 of the shaft is pivoted in a second bearing formed on a balance bridge 18, itself assembled to the stage 2.
  • the rocker 4 carries at least a first bipolar magnet 20, arranged at a distance from the shaft 12. More precisely, the magnet 20 is here housed in an extension 21 formed in thickened on the strut 10 of the balance 4
  • the magnet 20 has an orientation Magnetically substantially tangential with reference to the balance 4, in other words, its first and second faces 22 and 24 have opposite polarities.
  • the first face 22 may be associated with the north pole of the magnet 20 while the second face 24 may be associated with its south pole.
  • the balance bridge 18 carries a support 26 arranged on the bridge so that its angular orientation relative to the latter can be adjusted for a purpose to be explained later.
  • the support 26 carries a fixed bipolar magnet 28 arranged in such a manner that it is located near the serge 10 of the balance 4.
  • the first bipolar magnet 20 is capable, depending on the angular position of the rocker 4, to be positioned within range of the magnetic field produced by the fixed bipolar magnet 28.
  • the arrangement of the support 26 on the balance bridge 18 is made such that the fixed bipolar magnet 28 is located on the path of the first bipolar magnet 20, as defined by the pivoting of the balance 4
  • This trajectory has substantially the shape of a portion of torus adjacent to the serge 10 of the balance 4 and located in a plane parallel to the latter.
  • the fixed bipolar magnet 28 is arranged on the support 26 in such a way that, when the first bipolar magnet 20 approaches it, identical polarities are located opposite one another to give rise to a repulsive force. This arrangement makes it possible to generate restoring forces on the balance, when it pivots, intended to reproduce the typical movement of a balance associated with a spiral spring.
  • extension 21 may, alternatively, be arranged radially on the serge 10 rather than in an axial direction, without departing from the scope of the invention. Such an alternative reduces the size of the balance in the direction of its thickness but increases its overall diameter.
  • the shape and dimensions of the support 26 must of course be adapted to the implantation of the extension 21 on the balance 4 and the skilled person will not encounter any difficulty particular to adapt these elements according to their own needs.
  • the oscillator 1 comprises a connecting device, intended to establish a kinematic connection between the energy source of the watch movement and the balance shaft 12, arranged in such a way that the pendulum is capable of present a periodic oscillating motion maintained.
  • the watch movement typically comprises a finishing gear train ensuring the connection between the power source and the oscillator.
  • the escape wheel 30 constantly receives a torque by its pinion (not visible), under the effect of the energy released by the energy source of the watch movement, always tending to rotate in the same direction of rotation predefined.
  • the escape wheel cooperates conventionally with an anchor 32 pivoted on the frame of the watch movement.
  • the anchor 32 typically has a fork 34 arranged to cooperate with the escape wheel 30 and a dart 36 arranged to cooperate with a plateau pin (not visible) integral with the balance 4.
  • the rocker 4 periodically actuates the anchor 32 to rotate it and release the escape wheel 30, while the latter provides small impulses back to the anchor to maintain oscillations of the balance.
  • the balance 4 carries a second bipolar magnet 40 housed in a second extension 41 similar to the extension 21.
  • the second magnet 40 then has the same orientation as the first magnet 20 in such a way that the magnets 20 and 40 cooperate alternately with the fixed bipolar magnet 28 to give rise, in turn, to a repulsive force for reversing the direction of rotation of the balance 4.
  • the provision of two magnets on the pendulum makes it possible to adjust the amplitude of the oscillations of the balance, by modifying the angular difference between the two magnets.
  • an angular difference of the order of 20 to 180 degrees can be provided so that the amplitude of the oscillations of the balance 4 is substantially between 180 and 340 degrees. Even more preferably, the angular difference can be between 40 and 160 degrees.
  • the balance 4 here comprises a single arm 8 having a large angular extent to balance the balance from the point of view of the masses, in particular to balance the mass of the extensions 21 and 41.
  • a single arm 8 having a large angular extent to balance the balance from the point of view of the masses, in particular to balance the mass of the extensions 21 and 41.
  • Other shapes and / or solutions may be retained to balance the balance, without departing from the scope of the present invention.
  • the support 26 may comprise a base 50, provided with a hole 52 to ensure its assembly to the bridge 18, from which extend first and second arms 54, 56 intended to be positioned with a angular orientation adapted with reference to the balance 4, itself oriented angularly with respect to the anchor 32 (in in any case, the plateau pin is positioned to present substantially symmetrical oscillations with reference to the line passing through the balance shaft and the axis of rotation of the anchor).
  • the first arm 54 facilitates the gripping of the support 26 to change the angular orientation on the bridge 18, similar to the conventional exhaust rackets.
  • the second arm 56 has a housing, for the fixed bipolar magnet 28, disposed here perpendicularly to the main direction of the second arm 56 so that the fixed magnet 28 is finally oriented substantially tangentially with reference to the beam 10 of the balance 4 .
  • the fixed magnet 28 can be positioned precisely on the trajectory of the magnets carried by the balance, but it also makes it possible to define a mechanical stop offering a safety against the runaway of the balance in case of shock.
  • bipolar magnets used for the implementation of the present invention can be made from magnets of standard type, commercially available, and those skilled in the art will not encounter any particular difficulty in choosing suitable magnets. to his needs.
  • an oscillator for a watch movement comprising a balance bearing at least a first magnet associated with a fixed magnet. arranged on the trajectory of the magnet carried by the balance to generate a repulsion acting as a restoring force during the rotation of the balance, without departing from the scope of the present invention.
EP14199074.7A 2014-12-18 2014-12-18 Oszillator für Uhrwerk Withdrawn EP3035131A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14199074.7A EP3035131A1 (de) 2014-12-18 2014-12-18 Oszillator für Uhrwerk
US15/536,063 US10133240B2 (en) 2014-12-18 2015-12-18 Oscillator for timepiece movement
PCT/EP2015/080679 WO2016097384A1 (fr) 2014-12-18 2015-12-18 Oscillateur pour mouvement horloger
EP15817822.8A EP3234701B1 (de) 2014-12-18 2015-12-18 Oszillator für uhrwerk
JP2017532007A JP6770518B2 (ja) 2014-12-18 2015-12-18 時計ムーブメント用発振器
CN201580067532.XA CN107111277B (zh) 2014-12-18 2015-12-18 用于钟表机芯的振荡器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14199074.7A EP3035131A1 (de) 2014-12-18 2014-12-18 Oszillator für Uhrwerk

Publications (1)

Publication Number Publication Date
EP3035131A1 true EP3035131A1 (de) 2016-06-22

Family

ID=52133983

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14199074.7A Withdrawn EP3035131A1 (de) 2014-12-18 2014-12-18 Oszillator für Uhrwerk
EP15817822.8A Active EP3234701B1 (de) 2014-12-18 2015-12-18 Oszillator für uhrwerk

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15817822.8A Active EP3234701B1 (de) 2014-12-18 2015-12-18 Oszillator für uhrwerk

Country Status (5)

Country Link
US (1) US10133240B2 (de)
EP (2) EP3035131A1 (de)
JP (1) JP6770518B2 (de)
CN (1) CN107111277B (de)
WO (1) WO2016097384A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6548240B1 (ja) * 2018-06-29 2019-07-24 セイコーインスツル株式会社 ひげぜんまい、調速機、時計用ムーブメント及び時計
EP3719588B1 (de) 2019-04-03 2021-11-03 The Swatch Group Research and Development Ltd Automatisch regulierbarer oszillator einer uhr

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1789976U (de) * 1957-10-25 1959-06-04 Junghans Geb Ag Uhr mit mitteln zur kompensation der temperaturbeeinflussung der gangreglerschwingungen, insbesondere elektromagnetisch angetriebene uhr.
FR1332107A (de) * 1963-12-16
WO2006045824A2 (fr) * 2004-10-26 2006-05-04 Tag Heuer Sa Organe reglant pour montre bracelet, et mouvement mecanique comportant un tel organe reglant
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

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US3183426A (en) * 1962-02-14 1965-05-11 Cons Electronics Ind Magnetically coupled constant speed system
SU179233A1 (ru) 1965-01-28 1966-02-03 В. И. Бел евский , А. Г. Бабошко Контактное устройство наручных электрическихчасов
US3292438A (en) * 1965-02-02 1966-12-20 Abraham L Korr Timing escapement mechanism
CH1344468A4 (de) * 1968-09-06 1971-10-29
DE1916664A1 (de) 1969-04-01 1970-10-08 Baezold Karl Magnetische Hemmung fuer Mess- und insbesondere Zeitmessgeraete
CH1574569A4 (de) * 1969-10-22 1971-03-31
US3665699A (en) * 1970-04-16 1972-05-30 Centre Electron Horloger Device for locking an electro-dynamically maintained balance/balance-spring
BE790818A (fr) * 1971-11-01 1973-02-15 Timex Corp Moyens de commande d'amplitude pour oscillateurs a balancier
CH1810272A4 (de) 1972-12-13 1977-02-28
CH1659274A4 (de) 1974-12-13 1977-03-31
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FR2763404B1 (fr) 1997-05-13 1999-09-17 Marquet Philippe Perinet Mecanisme d'horlogerie a entrainement rotatif et regulation de vitesse
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TWI352882B (en) 2004-10-26 2011-11-21 Lvmh Swiss Mft Sa Regulating organ for wristwatch and mechanical mov
JP5253201B2 (ja) * 2009-01-23 2013-07-31 セイコーインスツル株式会社 軸受構造体及びこれを備えた時計
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CH704685B1 (fr) 2011-03-23 2015-12-15 Lvmh Swiss Mft Sa Organe réglant magnétique pour montre mécanique.
EP2990885B1 (de) * 2013-12-23 2017-07-26 ETA SA Manufacture Horlogère Suisse Mechanisches Uhrwerk mit magnetischem Hemmungsmechanismus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1332107A (de) * 1963-12-16
DE1789976U (de) * 1957-10-25 1959-06-04 Junghans Geb Ag Uhr mit mitteln zur kompensation der temperaturbeeinflussung der gangreglerschwingungen, insbesondere elektromagnetisch angetriebene uhr.
WO2006045824A2 (fr) * 2004-10-26 2006-05-04 Tag Heuer Sa Organe reglant pour montre bracelet, et mouvement mecanique comportant un tel organe reglant
EP1805565B1 (de) 2004-10-26 2010-09-15 TAG Heuer SA Armbanduhr-regulierungsglied und mechanisches uhrwerk mit einem solchen regulierungsglied
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
C.-A. REYMONDIN ET AL.: "Théorie d'horlogerie", pages: 178

Also Published As

Publication number Publication date
CN107111277A (zh) 2017-08-29
JP6770518B2 (ja) 2020-10-14
US20180004164A1 (en) 2018-01-04
US10133240B2 (en) 2018-11-20
JP2017538124A (ja) 2017-12-21
EP3234701B1 (de) 2021-05-05
CN107111277B (zh) 2020-08-21
EP3234701A1 (de) 2017-10-25
WO2016097384A1 (fr) 2016-06-23

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