EP4012511B1 - Verfahren zum harmonischen stimmen mindestens eines klangs eines schlagwerkmechanismus einer armbanduhr - Google Patents

Verfahren zum harmonischen stimmen mindestens eines klangs eines schlagwerkmechanismus einer armbanduhr Download PDF

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Publication number
EP4012511B1
EP4012511B1 EP20213374.0A EP20213374A EP4012511B1 EP 4012511 B1 EP4012511 B1 EP 4012511B1 EP 20213374 A EP20213374 A EP 20213374A EP 4012511 B1 EP4012511 B1 EP 4012511B1
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EP
European Patent Office
Prior art keywords
gong
plane
watch
vibration
frequency
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Application number
EP20213374.0A
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English (en)
French (fr)
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EP4012511A1 (de
Inventor
Younes Kadmiri
Polychronis Nakis KAPAPATIS
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Montres Breguet SA
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Montres Breguet SA
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Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP20213374.0A priority Critical patent/EP4012511B1/de
Priority to US17/400,760 priority patent/US12019404B2/en
Priority to JP2021134546A priority patent/JP7165245B2/ja
Priority to CN202111507385.7A priority patent/CN114624984B/zh
Publication of EP4012511A1 publication Critical patent/EP4012511A1/de
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/002—Electrical measuring and testing apparatus
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • 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
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/08—Sounding bodies; Whistles; Musical apparatus

Definitions

  • the invention relates to a method for the harmonic tuning of at least one gong of a striking mechanism of a watch.
  • the striking mechanism comprises at least one gong attached to a gong holder, and at least one hammer for striking the gong at predetermined instants.
  • the vibro-acoustic improvements relate essentially to the regulation elements, which make it possible to limit the noise of the mechanism when a chime is triggered. It is also carried out elements of the dressing, which make it possible to increase the acoustic level of the bell. These covering elements can also be acoustic radiation membranes or other radiating parts of the case of the watch.
  • a sound is generated by an element generating sound vibrations radiated by the casing of the watch case and this generating element is mainly a gong of a striking mechanism.
  • the vibration of the gong is produced by the impact, generally close to the gong holder, of at least one hammer.
  • This vibration is composed of several eigenfrequencies, the number and intensity of which, in particular in the audible domain, depend on the geometry of the gong, the conditions of fixation or support of the gong, the conditions of shock and the physical properties. of the material.
  • the timbre is rarely optimized. Improvements to the timbre relate essentially to its dimensions in order to target, on the one hand, a desired frequency and, on the other hand, to tune at least one of the partials of the hour and minute timbre together. In this case figure, we speak of tuning the melodic interval.
  • the material constituting the timbres can also be an improvement factor for modifying the frequency richness of the sound emitted.
  • the patent application EP 2 808 745 A1 describes a striking mechanism of a watch, which comprises means for selecting a vibratory mode of a gong.
  • the selection means comprise a selector element placed in contact on a part of the gong and held on a vibration node of a vibration mode of the gong to be selected. This makes it possible to block other vibrational modes.
  • This selector element can be moved over a portion of the timbre by a moving means, which makes it possible to select a vibratory mode in a non-irreversible manner.
  • no possibility of optimizing the timbre configuration is described in order to adapt a frequency of vibration in a non-irreversible manner to ensure fine tuning with the exterior of the watch.
  • any sound dissonance following the striking of the gong by a hammer cannot be avoided depending on the vibration frequencies generated in the plane of the gong and out of the plane of the gong.
  • the patent application CH 707 078 A1 describes a gong for a striking mechanism.
  • a gong vibration frequency adjustment device is provided.
  • An element in the form of a weight is mounted on the gong to act on a part of the gong to effect local mechanical stress. This makes it possible to adjust a vibration frequency of the stamp struck.
  • this does not make it possible to precisely adjust a natural frequency of vibration.
  • this does not make it possible to avoid any dissonance during the generation of vibration frequencies in the plane of the gong and out of the plane of the gong following the striking of the gong by a hammer.
  • the patent application CH 708 885 A1 describes a method for sizing and/or tuning one or more gongs for a timepiece
  • the object of the invention is therefore to overcome the drawbacks of the aforementioned state of the art by proposing a method for the harmonic tuning of at least one gong of a striking watch configured to remove certain dissonances from the sound emitted by the watch. when the gong is activated by the strike of the hammer.
  • the invention relates to a method for the harmonic tuning of at least one gong of a striking watch, which comprises the characteristics defined in independent claim 1.
  • An advantage of the timbre harmonic tuning process is that the vibration frequencies in the XY plane show in a basic eigenmode or for subsequent partials in the audible frequency band between 20 Hz and 5 kHz, are made very close to the watch out-of-plane vibration frequencies Z so as not to be perceived by the human ear. Thus, this makes it possible to avoid any dissonance or beating, which leads to a deterioration in the sound quality by such frequency coupling.
  • the watch plan can correspond to the gong plan.
  • /fip ⁇ 0.006 or r'
  • the calculation of the ratio r or r' depends on the direction in which the hammer hits the gong. The desired value of the ratio is always the same for each eigenmode in the audible frequency range.
  • the timbre is considered to be tuned. In this case, it does not generate any dissonance so that the human ear no longer distinguishes between the two frequencies that are too close to each other.
  • the desired value of this ratio can also be set smaller or equal to 0.005 and it depends on a person's perception of sounds.
  • an acoustic measuring instrument is used provided with a microphone unit, or with vibration measurement with a laser vibrometer or any other device allowing to measure the dynamic response of the timbre.
  • the gong can be placed on a suitable measuring support to be struck by a hammer outside the watch case or the gong can preferably be mounted directly in the watch case so as to be struck by the hammer of the striking mechanism .
  • the measuring instrument may include a microphone unit at the input to pick up the sound of the struck timbre, or include a vibrometer for vibration measurement.
  • an FFT analysis of the signal picked up by the microphone or by the laser vibrometer can be performed in order to obtain two frequency peaks which correspond to the vibration frequencies in the plane and off-plan of the stamp.
  • FFT analysis it is possible to determine what alterations to make on the timbre to have the two vibration frequencies in the plane and out of the plane sufficiently close to each other to avoid any dissonance of the sound generated by the struck stamp.
  • retouching of the timbre must be carried out if the ratio is greater than the value of 0.006. This mainly depends on the frequency difference between the vibration frequencies in the analyzed eigenmode.
  • THE figures 1a and 1b represent only a gong 1 of a traditional arrangement mainly in the form of an arc of a circle, which can be arranged around a watch movement once mounted in the watch case.
  • the cross-section of the stamp 1 over part of its length or over its entire length can be circular, oval, hexagonal, octagonal, bean-shaped or other shapes.
  • the gong is in a plane, which is the watch plane. It can also be envisaged that the patch has a cross-section varying from one end to the other end.
  • this stamp 1 in the form of an arc of a circle is configured in an XY watch plane, which here is the XY stamp plane with one end fixed to a stamp holder 2, while another end is left free to move . It can also be envisaged to fix the stamp to the stamp holder 2 in an intermediate part between the first end and the second end or also to fix each end of the stamp to a respective stamp holder 2 without free end of movement.
  • the gong holder 2 is generally intended to be fixed by a fixing means 3, such as screws, on a support such as a plate of the watch movement, or possibly fixed to an inner surface of the middle part of the case watch or on another part of the casing or even on a membrane.
  • the gong 1 can be struck by a hammer (not shown) in a defined direction, for example in the direction of the gong plane XY or the direction out of plane Z, or even also in an oblique direction.
  • a hammer (not shown) in a defined direction, for example in the direction of the gong plane XY or the direction out of plane Z, or even also in an oblique direction.
  • Said hammer is generally provided to strike the gong 1 close to the gong holder 2 on an interior side of the arrangement of the gong depending on the space available.
  • the frequency spectrum of the generated sound then contains the two frequencies 1,788 Hz and 1,731 Hz, which are on the one hand the frequency of vibration in the XY plane, and on the other hand the frequency of out-of-plane vibration in the Z direction.
  • the two frequencies generated in the first vibration eigenmode are very close to each other and to a frequency difference likely to be perceived by the human ear in the range of Audible frequencies defined primarily from at least 20 Hz up to 5 kHz. In this range of audible frequencies, the perception of these two vibration frequencies by the human ear causes dissonance or beating, which very clearly deteriorates the quality of the perceived sound.
  • /fip ⁇ 0.006 or r'
  • the ratio r is selected in the case of a strike substantially in the XY stamp plane, while the ratio r' is selected in the case of a strike substantially outside the Z plane, i.e. perpendicular to the plane of the XY stamp.
  • gong 1 of the striking mechanism of the watch can be placed in particular via the gong holder on a suitable support of a measuring instrument to be struck by a hammer outside the watch box.
  • Gong 1 can also be directly part of the striking mechanism of the watch, in order to place the watch case comprising the striking mechanism with gong 1 on a suitable support of the measuring instrument and to control the striking of gong 1 by the hammer of the mechanism at predetermined or programmed instants.
  • a microphone unit or a vibrometer of the measuring instrument can pick up the sound or vibration signal from the vibrating gong.
  • a filtering of the sound or vibration signal can still be carried out, then an FFT fast Fourier transform operation of the filtered or unfiltered signal coming from the microphone unit or from the laser vibrometer is carried out in a processor unit or in a microcontroller of the 'measuring tool.
  • a storage of the output signals after the FFT can still be carried out in the measuring instrument.
  • a graphical representation of the different frequency peaks of several vibration frequencies in the XY plane and outside the Z plane depending on the different audible modes of the vibrating timbre, can be performed after the FFT as represented for example in figures 3a and 3b described below.
  • the measuring instrument is suitable for measuring the dynamic response of the gong once struck by the hammer.
  • the dynamic response includes both a sound or audible signal, as well as a vibration signal.
  • THE figures 3a and 3b show graphs of an FFT analysis of a signal from the microphone unit or vibrometer.
  • the output signals are stored in the measuring instrument.
  • the frequency peaks observed on the figures 3a and 3b are relative to vibration frequencies in the XY plane and outside the Z plane of the vibrating gong. It is observed on the one hand the vibration frequencies in the XY plane and outside the Z plane before modification of the stamp, that is to say before carrying out a retouching of the said stamp at the picture 3a , and on the other hand after modification of the stamp at the figure 3b .
  • This vibration is composed of several natural or partial frequencies, two of which are represented on the figures 3a and 3b in the audible frequency range. This is a first natural frequency close to 1.7 kHz and a second natural frequency close to 3 kHz.
  • two frequency peaks are generated, which are a first vibration frequency f1p in the XY plane and a first out-of-plane vibration frequency f1h along the Z axis.
  • two frequency peaks are generated which are a second vibration frequency f2p in the XY plane and a second out-of-plane vibration frequency f2h along the Z axis.
  • the ratio r1
  • /f1p and ratio r2
  • This machining which is generally carried out by mechanical means, makes it possible to carry out this retouching in particular following knowledge of the frequency difference between the frequency of vibration in the XY plane and the frequency of vibration outside the Z plane of the first frequency natural and/or of the second natural frequency.
  • one or more successive retouchings on the timbre can be carried out until the moment when the ratio r1 and/or r2 is equal to or less than the desired value of 0.006.
  • the measuring instrument again picks up the sound generated by the vibrating gong.
  • An FFT processing of the signal coming from the microphone is then carried out in order to control at the output the frequency peaks of the vibration frequencies in the XY plane and outside the Z plane of the first natural frequency and of the second natural frequency.
  • a calculation of the ratios r1 and r2 is again performed to determine whether each ratio is less than or equal to the desired value of 0.006. If so, no further correction is made to the stamp, while if not, a new retouching operation must be performed, and so on until the expected ratio is obtained.
  • This editing operation can be performed manually or automatically. Under these conditions and depending on the various edits made previously and stored, each edit may preferably be carried out automatically by a machining tool of an automatic machining machine. It can be milling or grinding or by crushing (plastic deformation). Several simulations depending on the frequency difference of the vibration frequencies in the XY plane and outside the Z plane make it possible to precisely establish the type of machining and the retouching to be carried out to have the ratio r1 and/or r2 equal to or less than the value desired value of 0.006 after very few successive retouching steps.
  • the purpose of this procedure is to bring the two frequency peaks closer together, i.e. the vibration frequency in XY plane mode and the vibration frequency in Z out-of-plane mode so that the described ratio is lower or equal to 0.006.
  • retouching on the timbre is carried out and each acoustic or vibratory recording is analyzed after these retouching to study the frequency content of the measured signal.
  • a database in the measuring instrument is designed in such a way as to know automatically, according to the frequency peaks determined in the measuring instrument following the FFT analysis, what is the retouching to be carried out precisely on the timbre to correct and grant said stamp in one go.
  • any shape of the stamp can be envisaged, in particular or mainly with a shape lying in a plane so as to be able to control vibration frequencies in the XY plane and outside the Z plane.
  • the stamp can also be envisaged to have a stamp describing a three-dimensional shape and not just in one plane, for example the stamp could be in the shape of a corkscrew or the like.
  • a vibration in the XY plane, a vibration outside the Z plane of at least one eigenmode or of all the eigenmodes in the audible frequency range is measured.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (9)

  1. Verfahren zur harmonischen Abstimmung einer Tonfeder (1) einer Schlaguhr, wobei die Tonfeder (1) an mindestens einem Tonfederhalter (2) durch mindestens eines ihrer Enden oder durch einen Zwischenabschnitt, der sich zwischen dem ersten Ende und dem zweiten Ende der Tonfeder (1) befindet, befestigt ist, und bei dem ein Verhältnis von Vibrationsfrequenzen kontrolliert wird, die einerseits in einer Uhrenebene XY und andererseits außerhalb der Uhrenebene entlang der Achse Z nach einem Schlag eines Hammers gegen die Tonfeder (1) erzeugt werden,
    wobei das Verfahren die folgenden Schritte umfasst:
    - die Tonfeder (1) über ihren Tonfederhalter (2) auf einem geeigneten Träger eines Messinstruments platzieren oder ein Uhrengehäuse, das einen Schlagmechanismus umfasst, mit der Tonfeder (1) auf einem geeigneten Träger des Messinstruments platzieren,
    - die Tonfeder (1) in einer Richtung schlagen, die von einem externen oder zum Schlagwerk der Uhr gehörenden Hammer vorgegeben wird,
    - die dynamische Antwort der Tonfeder, die durch den Hammerschlag aktiviert und in Schwingung versetzt wird, durch das Messinstrument erfassen,
    wobei das Verfahren dadurch gekennzeichnet ist, dass es die folgenden Schritte umfasst:
    - Verarbeiten des dynamischen Tonfeder-Antwortsignals durch eine schnelle Fourier-Transformation in einer Prozessoreinheit oder einem Mikrocontroller des Messgeräts,
    - Bestimmen von mindestens zwei Frequenzspitzen, die in einem ausgewählten Eigenmodus den Schwingungsfrequenzen innerhalb der XY-Ebene und außerhalb der Z-Ebene der schwingenden Tonfeder in einem hörbaren Frequenzband von 20 Hz bis 5 kHz entsprechen,
    - Berechnen mindestens eines Verhältnisses r = |fip - fihl/fip ≤ 0,006 oder r' = |fih - fip|/fih ≤ 0,006, wobei fip die Schwingungsfrequenz in der XY-Ebene des ausgewählten iten Eigenmodus ist und fih die Schwingungsfrequenz außerhalb der Z-Ebene des iten Eigenmodus ist, wobei die Berechnung des Verhältnisses r oder r' von der Richtung des Hammerschlags gegen die Tonfeder abhängig ist,
    - Vergleichen des Verhältnisses r oder r' mit einem gewünschten Wert von 0,006, so dass, wenn r oder r' gleich oder kleiner als der gewünschte Wert von 0,006 ist, die Tonfeder als gestimmt gilt, wenn hingegen r oder r' größer als der gewünschte Wert ist, eine Nachbearbeitung der Tonfeder durchgeführt wird, bevor die Schritte des Verfahrens ab dem Schlagen der Tonfeder durch den Hammer erneut durchgeführt werden.
  2. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, dadurch gekennzeichnet, dass die dynamische Antwort der aktivierten und schwingenden Tonfeder ein akustisches oder hörbares Signal ist, das von einer Mikrofoneinheit des Messinstruments erfasst wird.
  3. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, dadurch gekennzeichnet, dass die dynamische Antwort der aktivierten und schwingenden Tonfeder ein Schwingungssignal ist, das von einem Laservibrometer erfasst wird.
  4. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, dadurch gekennzeichnet, dass alle Eigenfrequenzen der Tonfeder im hörbaren Frequenzbereich von 20 Hz bis 5 kHz gestimmt werden.
  5. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, wobei die Tonfeder (1) so konfiguriert ist, dass sie in einer Tonfederebene angeordnet ist, die der Uhrenebene entspricht, dadurch gekennzeichnet, dass die Tonfeder von dem Hammer in einer Richtung der Tonfederebene geschlagen wird und dass das Verhältnis r = |fip - fihl/fip ≤ 0,006 berechnet wird, um zu bestimmen, ob Nachbearbeitungsvorgänge an der Tonfeder durchgeführt werden müssen.
  6. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, wobei die Tonfeder (1) so konfiguriert ist, dass sie in einer Tonfederebene angeordnet ist, die der Uhrenebene entspricht, dadurch gekennzeichnet, dass die Tonfeder durch den Hammer in einer Richtung außerhalb der Tonfederebene Z, senkrecht zur Uhrenebene oder in einer Richtung eines schrägen Schlages geschlagen wird, und dass das Verhältnis r' = |fih - fip|/fih ≤ 0,006 berechnet wird, um zu bestimmen, ob Nachbearbeitungsvorgänge der Tonfeder vorgenommen werden müssen.
  7. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, dadurch gekennzeichnet, dass mehrere Simulationen, die von der Frequenzabweichung der Schwingungsfrequenzen in der XY-Ebene und außerhalb der Z-Ebene abhängen, es ermöglichen, die Art der Bearbeitung und die durchzuführende Nachbearbeitung genau festzulegen, um das Verhältnis r und/oder r' gleich oder kleiner als den gewünschten Wert von 0,006 nach einem oder zwei aufeinanderfolgenden Nachbearbeitungsschritten zu haben.
  8. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach Anspruch 1, dadurch gekennzeichnet, dass eine Datenbank im Messinstrument so ausgelegt ist, dass sie automatisch in Abhängigkeit von den im Messinstrument nach der FFT-Analyse ermittelten Frequenzspitzen weiß, welche Nachbearbeitung genau an der Tonfeder vorzunehmen ist, um die Tonfeder in einem einzigen Schritt zu korrigieren und zu stimmen.
  9. Verfahren zum harmonischen Stimmen einer Tonfeder (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jede Nachbearbeitung der Tonfeder durch Fräsen oder Schleifen oder durch lokales Quetschen des Materials der Tonfeder durchgeführt wird.
EP20213374.0A 2020-12-11 2020-12-11 Verfahren zum harmonischen stimmen mindestens eines klangs eines schlagwerkmechanismus einer armbanduhr Active EP4012511B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20213374.0A EP4012511B1 (de) 2020-12-11 2020-12-11 Verfahren zum harmonischen stimmen mindestens eines klangs eines schlagwerkmechanismus einer armbanduhr
US17/400,760 US12019404B2 (en) 2020-12-11 2021-08-12 Method of harmonic tuning of at least one gong of a watch striking mechanism
JP2021134546A JP7165245B2 (ja) 2020-12-11 2021-08-20 携行型時計のストライク機構の少なくとも１つのゴングを調和的チューンする方法
CN202111507385.7A CN114624984B (zh) 2020-12-11 2021-12-10 对表报时机构的至少一个音簧进行泛音调谐的方法

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EP20213374.0A EP4012511B1 (de) 2020-12-11 2020-12-11 Verfahren zum harmonischen stimmen mindestens eines klangs eines schlagwerkmechanismus einer armbanduhr

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EP4012511A1 EP4012511A1 (de) 2022-06-15
EP4012511B1 true EP4012511B1 (de) 2023-08-23

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EP (1) EP4012511B1 (de)
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2290479B1 (de) * 2009-08-26 2013-11-13 Montres Breguet SA Glocke für ein Schlagwerk einer Uhr
CH708885B1 (fr) * 2013-11-21 2018-12-14 Richemont Int Sa Procédé de dimensionnement et d'accordage d'un ou plusieurs timbres pour une pièce d'horlogerie et timbre(s) dimensionné(s) et accordé(s) au moyen de ce procédé.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7019205B1 (en) * 1999-10-14 2006-03-28 Sony Computer Entertainment Inc. Entertainment system, entertainment apparatus, recording medium, and program
CH707078A1 (fr) 2012-10-15 2014-04-15 Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie Timbre pour dispositif de sonnerie d'une pièce d'horlogerie.
EP2808745B1 (de) * 2013-05-28 2019-07-03 Montres Breguet SA Schlagwerk mit Mitteln zur Auswahl des Vibrationsmodus einer Tonfeder
EP2853958A1 (de) * 2013-09-26 2015-04-01 Montres Breguet SA Uhr mit verbesserter Akustik
CH708886B1 (de) * 2013-11-22 2017-06-30 Vario-Optics Ag Prüfvorrichtung für elektro-optische Leiterplatten.
EP3002639B1 (de) * 2014-10-01 2018-01-31 Montres Breguet SA Spieluhrlunette mit verbesserter akustischer Leistung
CH710598A1 (fr) * 2015-01-07 2016-07-15 Cartier Int Ag Système de sertissage pour un article d'horlogerie ou de joaillerie
CH712161A2 (fr) 2016-02-26 2017-08-31 Montres Breguet Sa Timbre, montre à mécanisme de sonnerie le comprenant et procédé de fabrication du timbre.
EP3657269A1 (de) * 2018-11-22 2020-05-27 Blancpain SA Resonanzorgan für schlagwerkmechanismus einer armbanduhr oder einer spieluhr

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2290479B1 (de) * 2009-08-26 2013-11-13 Montres Breguet SA Glocke für ein Schlagwerk einer Uhr
CH708885B1 (fr) * 2013-11-21 2018-12-14 Richemont Int Sa Procédé de dimensionnement et d'accordage d'un ou plusieurs timbres pour une pièce d'horlogerie et timbre(s) dimensionné(s) et accordé(s) au moyen de ce procédé.

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US12019404B2 (en) 2024-06-25
CN114624984B (zh) 2024-05-24
EP4012511A1 (de) 2022-06-15
CN114624984A (zh) 2022-06-14
US20220187770A1 (en) 2022-06-16
JP7165245B2 (ja) 2022-11-02
JP2022093253A (ja) 2022-06-23

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