EP2273323B1 - Mechanischer Oszillator - Google Patents

Mechanischer Oszillator Download PDF

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Publication number
EP2273323B1
EP2273323B1 EP10166943.0A EP10166943A EP2273323B1 EP 2273323 B1 EP2273323 B1 EP 2273323B1 EP 10166943 A EP10166943 A EP 10166943A EP 2273323 B1 EP2273323 B1 EP 2273323B1
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EP
European Patent Office
Prior art keywords
organ
return
oscillator according
elastic
blades
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
EP10166943.0A
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English (en)
French (fr)
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EP2273323A2 (de
EP2273323A3 (de
Inventor
Stéphane von Gunten
Pierre Gygax
Lucas Humair
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.)
Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
Original Assignee
Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
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Application filed by Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA filed Critical Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
Publication of EP2273323A2 publication Critical patent/EP2273323A2/de
Publication of EP2273323A3 publication Critical patent/EP2273323A3/de
Application granted granted Critical
Publication of EP2273323B1 publication Critical patent/EP2273323B1/de
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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
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs

Definitions

  • the energy allowing the operation of the movement is provided, in a conventional manner, by a spring that is armed. It gradually releases its energy, thanks to an escapement mechanism, regulated by a mechanical oscillator.
  • the oscillator is a balance-spring, well known to those skilled in the art.
  • the sprung balance is provided with pivots cooperating with bearings. For the regularity of the oscillation and limit the amount of energy that the sprung balance must receive for its oscillations are maintained, it is easy to understand that the friction conditions at the pivots of the sprung balance must be optimal. Significant efforts have been made to improve the quality of bearings or lubrication.
  • the document EP1736838 proposes a oscillator without pivot.
  • the latter comprises a body, centered on the oscillation axis of the oscillator, this body being connected to the frame of the movement by four U-shaped springs, deforming during the oscillation.
  • This system particularly interesting in the reduction of friction, since it has no pivot, however, is limited in its applications. Indeed, it is particularly adapted to the escape mechanism described in the corresponding document, which operates at a high frequency, but with limited amplitude of oscillations. In fact, it can not be applied to a conventional escapement, of Swiss anchor type, for example.
  • Other variants of pivotless oscillators are disclosed in the document US 3,318,087 and the document CH 496 267 .
  • the present invention aims to provide a mechanical oscillator without pivot, enjoying the advantages of the oscillator in reducing friction, but free from its disadvantages and adaptable to a conventional exhaust.
  • the invention relates to an oscillator as defined in the claims.
  • the oscillator For attachment to the frame of the movement, the oscillator comprises a fixing portion 10, which may consist of a plate 12 provided with at least two holes 14 for receiving fixing screws.
  • the fixing portion 10 may further have flanks 16 straight and parallel to cooperate with guide walls of a housing formed in the frame and intended to receive the fixing portion.
  • the orifices 14 may be in the form of oblongs parallel to these flanks 16.
  • the longitudinal position of the fastening portion 10 with reference to the housing can be adjusted to adjust the position of the oscillator.
  • the person skilled in the art will of course be able to adapt other systems for adjusting the position of the fastening portion 10, either in the plane or at the height, possibly by means of micrometer screws or the like.
  • the oscillator comprises a truncated or annular serge 18, acting as a conventional balance.
  • the center of the serge 18 defines the oscillation axis of the oscillator.
  • the serge 18 is arranged so that it can be mounted on a fastening portion to be connected to the other elements of the oscillator, as will be described later.
  • the serge 18 comprises an opening 20, centered on the axis of oscillation, inside which is rigidly placed a fastening portion of the neighboring element of the oscillator.
  • the serge 18 is ideally made of a high density material, such as gold or platinum, but it can also be made of a copper-like material, of brass type, usually used to make rockers.
  • the serge 18 carries, at its central portion, a finger, for example silicon, or a ruby ellipse, acting as a plateau pin of a conventional balance and schematically represented as 19 on the figure 2 .
  • This ellipse or finger is arranged projecting, parallel to the axis of oscillation and is intended to cooperate with the anchor or with a release pallet of the escapement mechanism of the movement.
  • the serge 18 is connected to the fixing portion 10 by a series of return members.
  • Each return member is formed of a pair of resilient blades 22 consisting of a first and a second blades located in the same plane perpendicular to the axis of oscillation.
  • the blades 22 of a pair are connected, by a first of their ends, to an intermediate attachment portion 24 located on the axis of oscillation.
  • the second end of the resilient blades 22 is connected to a suspended frame 26 which is coplanar with the blades that it connects.
  • the blades 22 of a pair define between them an angle of between 45 and 120 °, typically between 60 and 105 °, typically close to 90 °.
  • the frame 26 is preferably circular in shape, concentric with the axis of oscillation.
  • the blades 22 of a pair are then located on the spokes of the circle defined by the frame. All the elastic blades therefore have the same length.
  • return members are assembled in pairs, being rigidly connected only by their frame 26.
  • two return members are superimposed, at least partially, which defines an upper return member and a lower return member, with reference to the drawing, with the serge 18 which is located on the lower side.
  • two return members are entirely superimposed.
  • the frames 26 are fixed to each other, for example by an intermediate frame 28, maintaining a distance between them so that the blades 22 of the two return members do not touch.
  • the intermediate attachment portions 24 of the return members whose frames are connected are free one with reference to the other. They are not directly related to each other. In the present description, it is considered that the assembly formed by two return members connected to each other by their frame, is called an elastic system.
  • the intermediate attachment portion 24 of an upper return member of a first elastic system may be rigidly connected to the intermediate attachment portion 24 of a lower return member of a second elastic system.
  • the connection may advantageously be via a spacer 30 so as to prevent the elastic blades of two return members touching.
  • the intermediate attachment portion 24 of a lower biasing member of the first elastic system can be rigidly connected to the intermediate attachment portion 24 of an upper return member of a third elastic system.
  • the intermediate attachment portion 24 of the lower return member of the first elastic system is connected to serge 18, as mentioned above.
  • a spacer forming a first attachment portion 32 ensures that the serge 18 or the arms holding the serge does not rub against the elastic blades 22.
  • the spacer connects the intermediate attachment portion 24 of the lower return member and is inserted rigidly into the opening 20 of the serge 18.
  • the intermediate attachment portion 24 of the upper return member of the second elastic system is connected to the attachment portion 10.
  • the latter is provided with two elastic blades 34, similar to those of a return member and joining together.
  • a last attachment portion 36 centered on the axis of oscillation.
  • a spacer 30 ensuring that the elastic blades of the fixing portion do not rub against the elastic blades of the return member, rigidly connects the intermediate attachment portion 24 of the upper return member and the last attachment portion 36.
  • the return members are preferably made of silicon by deep etching from a wafer, which makes it possible to monolithically produce the frame 26, the blades 22 and the intermediate attachment portion 24.
  • Other materials may be considered, including polycrystalline synthetic diamond.
  • silicon parts their surface can be oxidized so as to stabilize the natural frequency of the system in temperature and a better handling stability.
  • All of the resilient blades 22 and 34 are arranged and calculated such that all degrees of freedom of the serge 18 are minimized, except for oscillation about the oscillation axis.
  • all the degrees of freedom of the serge are rigid, that is to say greater, compared to the degree of freedom around the axis of oscillation.
  • the angular stiffness of the oscillator around this axis is calculated so as to ensure a frequency determined at the oscillator. There is therefore no spring-spiral.
  • the elastic blades are deformed but, thanks to the fact that the frames 26 of the return members are free and that they are assembled two by two, they move radially with reference to the axis, but without disturbing or move the attachment portions 24 remaining on the oscillation axis.
  • the different elastic systems are sufficiently rigid to prevent that, in the event of shocks, parts of the oscillator come into collision with other parts of the movement. or else, limiting stops are provided to avoid such collisions that could damage the fragile parts, made of silicon.
  • FIG 4 A prestressing system is proposed in compression or traction of the blades of a return member, such a system that can be implemented either at each return member or at each elastic system.
  • a prestressing system is proposed in compression or traction of the blades of a return member, such a system that can be implemented either at each return member or at each elastic system.
  • the angular rigidity of the blades is reduced, and exerting a prestress in compression on the blades 22, the angular rigidity of the blades is increased, which makes it possible to adjust the natural frequency of the system and play the role of a raquetterie (to adjust the average time and therefore the running of the watch).
  • a spring system 40 having a point of attachment on the center of oscillation has at its other end an attachment member 42 capable of cooperating with the fastening member 38.
  • the attachment member 42 is obtained by one or two teeth 44 shaped to cooperate with the toothing.
  • the toothing of the fastener member may be elastically movable to allow adjustment of the position of the fastening member 42 in the toothing.
  • the spring system 40 is arranged so as to exert on the frame 26 a tensile or compressive stress of the blades 22. It may be possible to envisage other adjustment systems, but this is advantageous because the elements can be made directly, monolithically, during the engraving of the return members.
  • the heavy periphery made of a metallic material, can be connected to the attachment portion for a silicon connection integrally with the fastening portion. This makes it possible to accentuate the distribution of the mass outside.
  • an oscillator having no friction, no wear and does not require lubrication.
  • the amplitudes of the flat and the hanged are equalized, because of the absence of pivot.
  • Such an oscillator can be adapted to escapements and conventional movements, thanks to the amplitudes and frequencies reached.
  • the amplitude is 100 ° (remember that, for the skilled person, the amplitude is defined in each direction relative to the center line).
  • the oscillator is not held by a balance bridge covering the axis of oscillation. The oscillator can be fully visible from the outside of the movement.
  • the series setting of the return members increases the number of elastic blades involved in the design of the oscillator, which reduces their stiffness for given characteristics of the oscillator.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Transmission Devices (AREA)

Claims (15)

  1. Mechanischer Oszillator, der um eine Schwingachse ohne Drehzapfen schwingt, wobei der Oszillator aufweist:
    - einen Fußkreis (18), der auf der Schwingachse zentriert und auf einem ersten Befestigungsabschnitt (32), der sich auf der Schwingachse befindet, montiert ist,
    - einen Befestigungsabschnitt (10), der zur Befestigung an einem Gestell eines Uhrwerks bestimmt ist,
    - eine Vielzahl elastischer Systeme, die den Fußkreis und den Befestigungsabschnitt verbinden,
    dadurch gekennzeichnet, dass jedes elastische System zwei Rückzugorgane umfasst, die in Reihe ausgebildet sind und miteinander durch einen Rahmen (26) verbunden sind und dass mindestens einige der elastischen Systeme aufgehängt sind und in Bezug auf das Gestell frei sind.
  2. Mechanischer Oszillator nach Anspruch 1, dadurch gekennzeichnet, dass der Befestigungsabschnitt mit zwei elastischen Klingen (34) ausgestattet ist, die sich senkrecht zur Schwingachse in einer selben Ebene befinden und in einem letzten Befestigungsabschnitt (36), der sich auf der Schwingachse befindet, verbunden sind.
  3. Mechanischer Oszillator nach Anspruch 2, dadurch gekennzeichnet, dass er eine gerade Anzahl von Rückzugorganen aufweist, die umfassen:
    - ein Paar elastischer Klingen (22), das von einer ersten und einer zweiten Klinge gebildet ist, die sich in einer selben senkrechten Ebene zur Schwingachse befinden und mit einem ersten ihrer Enden mit einem Übergangs-Befestigungsabschnitt (24) verbunden sind, der sich auf der Schwingachse befindet, und
    - einen aufgehängten Rahmen (26), der mit den Klingen eines Paars mit ihrem zweiten Ende verbunden ist, wobei der Rahmen zu den Klingen, die er verbindet, koplanar ist,
    und dass ein unteres Rückzugorgan und ein oberes Rückzugorgan starr paarig nur durch ihren aufgehängte Rahmen (26) verbunden sind, um ein erstes elastisches System zu bilden, wobei der Übergangs-Befestigungsabschnitt des unteren Rückzugorgans mit dem Übergangs-Befestigungsabschnitt eines oberen Rückzugorgans eines zweiten elastischen Systems oder mit dem ersten Befestigungsabschnitt verbunden ist, wobei der Übergangs-Befestigungsabschnitt des oberen Rückzugorgans mit dem Befestigungsabschnitt eines unteren Rückzugorgans eines dritten elastischen Systems oder mit dem letzten Befestigungsabschnitt verbunden ist.
  4. Oszillator nach Anspruch 3, dadurch gekennzeichnet, dass er eine Vielzahl elastischer Systeme aufweist, die gleichmäßig um die Schwingachse verteilt sind.
  5. Oszillator nach einem der Ansprüche 3 und 4, dadurch gekennzeichnet, dass alle elastischen Klingen dieselbe Länge haben.
  6. Oszillator nach Anspruch 3, dadurch gekennzeichnet, dass die aufgehängten Rahmen (26) zur Schwingachse konzentrisch sind.
  7. Oszillator nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass das erste und zweite Rückzugorgan eines elastischen Systems übereinandergestellt sind.
  8. Oszillator nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass das erste und zweite Rückzugorgan eines elastischen Systems winklig versetzt sind.
  9. Oszillator nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass die Rückzugorgane aus Silizium hergestellt sind.
  10. Oszillator nach Anspruch 9, dadurch gekennzeichnet, dass das Silizium mit einer Oxidschicht bedeckt ist.
  11. Oszillator nach einem der Ansprüche 3 bis 10, dadurch gekennzeichnet, dass die Rückzugorgane aus polykristallinem synthetischem Diamant hergestellt sind.
  12. Oszillator nach einem der Ansprüche 3 bis 11, dadurch gekennzeichnet, dass er mindestens ein Zug- oder Kompressions-Vorspannungssystem der Klingen eines Rückzugorgans aufweist.
  13. Oszillator nach Anspruch 12, dadurch gekennzeichnet, dass das Vorspannungssystem mit dem Rückzugorgan monolithisch ist.
  14. Oszillator nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass das Vorspannungssystem aufweist:
    - ein Befestigungsorgan (38) an mehreren Positionen in Verbindung mit einem Rahmen des Rückzugorgans,
    - ein Federsystem (40), das einen Befestigungspunkt auf dem Oszillationszentrum hat und an seinen anderen Ende ein Verbindungsorgan (42) aufweist, das imstande ist, mit dem Befestigungsorgan zusammenzuarbeiten und mehrere unterschiedliche Positionen in Bezug auf das Befestigungsorgan einzunehmen.
  15. Oszillator nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Fußkreis ein hervorstehendes, das zur Schwingachse paralleles Organ aufweist, um mit einem Hemmungsmechanismus zusammenzuarbeiten.
EP10166943.0A 2009-07-10 2010-06-22 Mechanischer Oszillator Active EP2273323B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01078/09A CH701421B1 (fr) 2009-07-10 2009-07-10 Oscillateur mécanique.

Publications (3)

Publication Number Publication Date
EP2273323A2 EP2273323A2 (de) 2011-01-12
EP2273323A3 EP2273323A3 (de) 2014-04-02
EP2273323B1 true EP2273323B1 (de) 2015-12-16

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EP (1) EP2273323B1 (de)
CH (1) CH701421B1 (de)

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RU2807031C2 (ru) * 2020-12-02 2023-11-08 Омега Са Спиральная пружина для часового резонаторного механизма, оснащенная средствами регулирования жесткости

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CH709880A2 (fr) * 2014-07-14 2016-01-15 Nivarox Sa Guidage flexible horloger.
CH709881A2 (fr) * 2014-07-14 2016-01-15 Nivarox Sa Guidage flexible horloger.
EP2998800B1 (de) * 2014-09-16 2019-01-16 Patek Philippe SA Genève Uhrkomponente mit flexiblem zapfenlager
EP3021174A1 (de) * 2014-11-17 2016-05-18 LVMH Swiss Manufactures SA Monolithischer Uhrregler, Uhrwerk und Uhr mit einem solchem Uhrregler
EP3037893B1 (de) 2014-12-22 2018-02-28 Patek Philippe SA Genève Mikromechanische Komponente oder Uhr mit flexiblem Führungsdraht
EP3147725B1 (de) * 2015-09-28 2018-04-04 Nivarox-FAR S.A. Oszillator mit rotierendem gesperr
CH711574A2 (en) 2015-09-29 2017-03-31 Patek Philippe Sa Geneve Mechanical component with flexible guide, in particular for watch movement.
CH711573A2 (en) 2015-09-29 2017-03-31 Patek Philippe Sa Geneve Watch movement comprising a flexible guiding system.
JP6895977B2 (ja) * 2015-09-29 2021-06-30 パテック フィリップ ソシエテ アノニム ジュネーブ 可撓性枢動機械構成要素及び可撓性枢動機械構成要素を備えた時計装置
EP3206089B1 (de) * 2016-02-10 2018-12-19 The Swatch Group Research and Development Ltd. Resonatormechanismus eines uhrwerks
US11029649B2 (en) 2016-03-14 2021-06-08 LVHM Swiss Manufactures SA Device for timepiece, clockwork movement and timepiece comprising such a device
FR3048792B1 (fr) * 2016-03-14 2019-07-19 Lvmh Swiss Manufactures Sa Dispositif pour piece d'horlogerie, mouvement horloger et piece d'horlogerie comprenant un tel dispositif
EP3276431B1 (de) 2016-07-27 2020-01-01 Cartier International AG Mechanischer oszillator für uhrwerk
CH713137A2 (fr) * 2016-11-16 2018-05-31 Swatch Group Res & Dev Ltd Protection d'un mécanisme résonateur à lames contre les chocs axiaux.
CH713167B1 (fr) * 2016-11-16 2021-10-29 Swatch Group Res & Dev Ltd Protection des lames d'un résonateur de montre mécanique en cas de choc.
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CH713288A1 (fr) 2016-12-23 2018-06-29 Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie Composant monolithique flexible pour pièce d'horlogerie.
EP3580618B1 (de) 2017-02-13 2022-01-26 Patek Philippe SA Genève Antriebsorgan einer uhr
CH711828A2 (fr) * 2017-02-22 2017-05-31 Csem Centre Suisse D'electronique Et De Microtechnique Sa - Rech Et Développement Pièce d'horlogerie micromécanique multi-niveaux et son procédé de fabrication.
CN111344640A (zh) * 2017-10-02 2020-06-26 爱彼钟表业制造有限公司 带有具有旋转重锤和共同返回力的谐波振荡器的钟表调校设备
NL2020384B1 (en) 2018-02-06 2019-08-14 Flexous Mech Ip B V Mechanical watch oscillator
EP3561606B1 (de) * 2018-04-27 2022-01-26 The Swatch Group Research and Development Ltd Stossdämpfungsschutz eines resonators mit rcc-schwenkfedern
EP3572885B1 (de) * 2018-05-25 2022-04-20 ETA SA Manufacture Horlogère Suisse Mechanischer oszillator eines isochronen uhrwerks in jeder position
US10895845B2 (en) * 2018-06-25 2021-01-19 The Swatch Group Research And Development Ltd Timepiece oscillator with flexure bearings having a long angular stroke
EP3824353B1 (de) * 2018-07-16 2023-11-29 Patek Philippe SA Genève Schwerkraftunempfindlicher biegeschwenkoszillator
CH715438A1 (fr) 2018-10-08 2020-04-15 Mft Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle S A Oscillateur mécanique et mouvement horloger le comprenant.
EP3644129B1 (de) * 2018-10-24 2025-07-30 Patek Philippe SA Genève Flexibles steuerorgan
EP3992730A1 (de) * 2020-10-29 2022-05-04 The Swatch Group Research and Development Ltd Flexible führung mit regulierbarem verschiebetisch für einen rotierenden resonatormechanismus, insbesondere eines uhrwerks
EP4009115A1 (de) * 2020-12-02 2022-06-08 Omega SA Spiralfeder für resonatormechanismus eines uhrwerks, der mit mitteln zum ausgleichen der starrheit ausgestattet ist
EP4163735A1 (de) * 2021-10-05 2023-04-12 Patek Philippe SA Genève Verfahren zur herstellung und einstellung eines oszillators mit flexibler führung und uhrwerk, das einen solchen oszillator umfasst
EP4273633B1 (de) 2022-05-02 2026-04-15 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Mechanischer oszillator mit isochronismuskorrektur

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RU2807031C2 (ru) * 2020-12-02 2023-11-08 Омега Са Спиральная пружина для часового резонаторного механизма, оснащенная средствами регулирования жесткости
RU2822300C1 (ru) * 2022-06-02 2024-07-04 Омега Са Регулирующий элемент часов с точным узлом регулировки хода

Also Published As

Publication number Publication date
EP2273323A2 (de) 2011-01-12
EP2273323A3 (de) 2014-04-02
CH701421A2 (fr) 2011-01-14
CH701421B1 (fr) 2014-11-28

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