EP2881807B1 - Acoustic dispersion membrane for a musical watch - Google Patents

Acoustic dispersion membrane for a musical watch Download PDF

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Publication number
EP2881807B1
EP2881807B1 EP13196238.3A EP13196238A EP2881807B1 EP 2881807 B1 EP2881807 B1 EP 2881807B1 EP 13196238 A EP13196238 A EP 13196238A EP 2881807 B1 EP2881807 B1 EP 2881807B1
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EP
European Patent Office
Prior art keywords
membrane
central base
central
peripheral ring
watch
Prior art date
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Application number
EP13196238.3A
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German (de)
French (fr)
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EP2881807A1 (en
Inventor
Polychronis Karapatis (Nakis)
Younes Kadmiri
Davide Sarchi
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Montres Breguet SA
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Montres Breguet SA
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Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP13196238.3A priority Critical patent/EP2881807B1/en
Priority to US14/556,370 priority patent/US9207645B2/en
Priority to JP2014245572A priority patent/JP6067662B2/en
Priority to CN201410748666.5A priority patent/CN104698808B/en
Publication of EP2881807A1 publication Critical patent/EP2881807A1/en
Priority to HK15111849.3A priority patent/HK1211091A1/en
Application granted granted Critical
Publication of EP2881807B1 publication Critical patent/EP2881807B1/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
    • G04B37/00—Cases
    • G04B37/0075—Cases with means to enhance sound transmission
    • 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
    • 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
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/028—Sounding bodies; boxes used as sounding cases; fixation on or in the case
    • 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
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/07—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube mechanically operated; Hand bells; Bells for animals

Definitions

  • the invention relates to an acoustic radiation membrane for a musical watch, or a striking watch.
  • a striking mechanism can be provided in a watch movement so as to generate a sound or a music.
  • the timbre of the bell watch or the keyboard of the musical watch are generally placed in the watch case.
  • These pieces of clothing are for example the middle part, the bezel, the ice and the bottom of the watch case. These large pieces of clothing begin to radiate sound in the air under the effect of transmitted vibrations.
  • a sound is produced either by a stamp struck by a hammer or by one or more blades of the vibrating keyboard, these pieces of clothing are able to radiate the sound produced in the air.
  • the acoustic efficiency based on the complex vibro-acoustic transduction of the trim pieces, is low.
  • the material, geometry and boundary conditions of the trim pieces must be taken into account.
  • the configurations of these pieces of clothing are also dependent on the aesthetics of the watch and operating constraints, which may limit the possibilities of adaptation.
  • a membrane disposed within the watch case.
  • the membrane must be dimensioned so that all the notes generated by the vibration of one or more timbres, or the blades of a keyboard is radiated effectively. It is therefore important that the frequencies of the notes are close to those of the eigen modes of the membrane to enable it to come into resonance.
  • the radiation efficiency which is logically defined as the ratio between the energy of the radiated acoustic wave divided by the total energy transferred to the membrane, is then reduced over almost the entire frequency band of interest. It is therefore difficult to obtain a resonance on each generated note of the striking mechanism, which is a disadvantage of the membranes of the state of the art.
  • the patent application EP 2 461 219 A1 which describes an acoustic radiation membrane for a musical watch or bell.
  • This acoustic membrane has a general shape of bowl with its peripheral edge sandwiched between a part of the middle part and the bottom of the watch case.
  • This membrane is designed with one or two asymmetrically shaped regions formed in the membrane material. The two regions excavated in the general thickness of the membrane are of different size. These two regions form ellipses, which are offset from each other with respect to the center of the membrane and overlap in part. With these ellipses in the membrane, it is possible to have a double number of eigen modes of vibration for each ellipse with respect to a circular-shaped region. However, this does not make it possible to increase the bandwidth of a vibratory mode of the membrane to obtain an amplified vibratory response over a larger frequency band, which is a drawback.
  • the patent application CH 704 673 A3 describes an acoustic radiation membrane for a musical or striking watch just like the patent application EP 2 461 219 A1 .
  • the membrane further comprises a retaining member cooperating with an internal abutment member of the bottom of the watch case.
  • the membrane is not designed to obtain an amplified vibratory response over a large frequency band, which is a drawback.
  • the patent CH 311 296 A describes a wristwatch, which comprises between the bottom of the box and the movement an acoustic radiation membrane. A protrusion is made on the membrane to be struck by a hammer to generate a sound. However, the membrane is not designed to obtain an amplified vibratory response over a large frequency band, which is a drawback.
  • the object of the invention is therefore to overcome the drawbacks of the above-mentioned state of the art by providing an acoustic radiation membrane for a musical watch or a striking watch, made in such a way as to obtain an amplified vibratory response of the membrane on a greater bandwidth of frequencies.
  • the invention relates to an acoustic radiation membrane comprising the characteristics defined in independent claims 1 and 2.
  • An advantage of the acoustic radiation membrane lies in the fact that the central part is made in the form of a piston, as according to the principle of a loudspeaker, so as to ensure the increase of the amplitude of vibration especially on the frequency band from 500 Hz to 3.5 kHz.
  • the acoustic response of the membrane is relatively uniform in this frequency range.
  • the frequency of the fundamental vibration mode which is the most acoustically effective, can be reduced around 1'000 Hz, without the frequency of the excited modes, acoustically inefficient, or reduced considerably.
  • the membrane responds, throughout the frequency band of interest (500-3'500 Hz) according to the specific spatial deformation of its fundamental mode, which allows to maximize the acoustic radiation.
  • the central portion of the membrane has a deformed first vibration mode different from a standard flat-bottomed membrane.
  • the displacement according to the normal to the central part of the membrane is identical on the whole of the surface of the central part. This significantly increases the acoustic radiation and ensure amplification of a set of notes generated in the musical watch or ringing.
  • the first mode of vibration of each generated note is therefore at least in the frequency range between 500 Hz and 3.5 kHz.
  • a second natural mode of vibration is also in the frequency range between 500 Hz and 3.5 kHz.
  • the width of the peak of at least the first mode of vibration is greater than for a standard flat-bottomed membrane.
  • the membrane may be made of amorphous metal or metal glass, or also of gold or platinum, or even brass, titanium, aluminum or another material having a density, a Young's modulus and an elastic limit , which are similar.
  • the widening of the soundtrack can be combined with a very low internal damping, which makes it possible to obtain a very good sound output.
  • acoustic radiation membrane in particular to equip a musical watch, or a bell watch.
  • the acoustic radiation membrane is made with a complex shape to amplify the vibration amplitude of different notes generated in a watch case.
  • the membrane is dimensioned in such a way as to amplify in particular the first mode of vibration, or even a second mode of vibration in a frequency band of 500 Hz to 3.5 kHz.
  • the Figures 1a and 1b represent an embodiment of the acoustic radiation membrane 1, which can equip a musical watch or a bell watch.
  • the acoustic radiation membrane 1 may be in plan view of a generally rectangular, or polygonal or preferably circular shape as shown in FIG. figure 1a .
  • the membrane 1 is configured for example in the form of a bowl with an active central portion 2, 2 ', 5, defining a bottom of a bowl, a side wall 3 of cylindrical shape, or slightly conical, and a peripheral edge 4.
  • the active central portion is composed of a central base 2 connected by means of connecting elements 5 to a peripheral ring 2 ', which can be concentric with the central base.
  • These connecting elements are in the form of tabs and are defined as sectors 5.
  • the sectors 5 are preferably circular or angular sectors starting from the circular periphery of the base and attached to the inner edge of the ring. Openings 5 'may be provided between each angular sector 5.
  • the angular sectors 5 may be evenly distributed around the periphery of the central base 2, which is in disk form, and may have the same dimensions.
  • the openings 5 ' have general shapes equivalent to each angular sector.
  • the angle of each sector determined from the center of the membrane 1 may be identical to the angle described by each opening 5 '. It can be expected therefore 4 angular sectors and 4 openings each defined at an angle of 45 °. However the angle of each sector can also be different from the angle of each opening.
  • the peripheral ring 2 ' which is disposed between the different sectors 5 and an edge of the side wall 3, is a circular ring according to the figure 1a .
  • This peripheral ring 2 ' can be configured as a conical portion with an opening angle with respect to the central axis of the membrane, which is large enough, for example of the order of 80 °.
  • the peripheral ring is configured to extend outwardly of the bowl.
  • the central base 2 may also be rectangular in shape as the peripheral ring.
  • at least 4 connecting elements 5, such as connecting sectors, are provided on each side of the rectangular base.
  • first and second connecting sectors respectively connected to the central base 2 and the peripheral ring 2 '.
  • An alternation of first and second sectors is foreseen on all the periphery of the central base, but with first sectors having a different thickness of the second sectors.
  • no opening 5 ' is provided between the central base 2 and the peripheral ring 2'.
  • peripheral edge 4 it can be provided a border in the form of several peripheral portions distributed around the perimeter of the side wall 3 for fixing the membrane in a watch case .
  • the acoustic radiation membrane 1 with all the elements, which compose it, can be formed in one piece in the same material, which can be metallic.
  • This material may be amorphous metal or metal glass in the example described and with reference to figures 2 and 3 explained below.
  • this membrane may be made of another material, such as gold or platinum, or even brass, titanium, aluminum for example with a density, a Young's modulus and an elastic limit, which are similar.
  • the membrane can also be made by combining two different materials, by welding, brazing, driving or coating.
  • the central portion 2 is made of a material M1 while the peripheral ring is made of a second material M2 different from M1.
  • the central portion 2 is made of a material M1 while the connecting elements 5 are made of a second material M2 different from M1.
  • the membrane is made in the material M1, while the surface coating is made by the material M2. This coating has a different thickness for the central portion 2, the peripheral ring 2 'and the connecting elements 5 and may be of inhomogeneous thickness.
  • the acoustic membrane 1 can be mounted in a not shown watch case with its peripheral edge 4, which is clamped in a traditional manner between the bottom and the middle of the watch case with a seal.
  • the central portion in the form of piston is without contact with other parts of the watch so as to freely vibrate.
  • the central part, and in particular its central base 2 is disposed close to and without contact with the bottom of the watch case.
  • Figures 1a and 1b which represent the membrane according to views from below, the central base 2 and the angular sectors 5 are of flat shape and arranged on the bottom side of the watch case via the conical peripheral ring 2 'connected to the side wall 3.
  • the central portion from its connection to the side wall 3 through the peripheral ring 2 ' may have a diameter greater than 15 mm and preferably between 20 and 40 mm. This diameter can be substantially equivalent to that of a not shown watch glass, since the peripheral edge 4 can be pinched between a peripheral support of the bottom of the watch case and a circular inner rim of the middle part.
  • the central base 2 may be of a diameter of between 60% and 70% of the diameter of the complete central part.
  • the central base may have a diameter of between 10 and 27 mm depending on the respective diameter of the entire central part, while the peripheral ring may have its inner edge with a diameter of 13 mm for a diameter of the part. central 15 mm or 34 mm diameter for a central diameter of 40 mm.
  • the thickness of the central base 2 disc-shaped may be identical at any point and greater than the thickness of the peripheral ring 2 '.
  • the angular sectors 5 have an identical thickness at all points and less than the thickness of the peripheral ring.
  • the thickness of each angular sector is provided much lower than the thickness of the central base, which defines a central mass.
  • the thickness of each sector may be chosen between 50 and 100 ⁇ m, while the thickness of the peripheral ring 2 'may be greater than 100 ⁇ m and less than 1 ⁇ m. mm.
  • the thickness of the central base 2 may be at least twice the thickness of the peripheral ring.
  • the central portion in the form of a piston can thus be dimensioned according to the material constituting it in such a way as to amplify the vibration over the frequency band from 500 Hz to 3.5 kHz.
  • the acoustic response of the membrane is thus relatively uniform in this frequency band.
  • the first mode of vibration of each note generated is therefore at least in the frequency range between 500 Hz and 3.5 kHz.
  • the figure 2 represents a graph of the frequency response, integrated over the entire volume of the membrane, the amplitude of the speed according to the normal to the membrane for a standard metal glass membrane, and a metal glass membrane according to the invention.
  • the figure 3 represents a graph of the ratio between the frequency responses of the membrane according to the invention and the standard membrane.
  • Such an acoustic radiation membrane which is made with an active central part of complex shape, makes it possible to increase the amplitude of vibration in the frequency range of 500 Hz to 3.5 kHz. This differs advantageously compared to a standard membrane, the central portion is only flat.
  • a diaphragm in the form of a piston according to the invention makes it possible to have an identical displacement over the entire surface and thus to guarantee a radiating effect that is more effective than any membrane in the state of the technique.
  • the sectors connecting the central base to the peripheral ring may have a variable thickness, but less than the thickness of the ring and the central base.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Description

L'invention concerne une membrane de rayonnement acoustique pour une montre musicale, ou une montre à sonnerie.The invention relates to an acoustic radiation membrane for a musical watch, or a striking watch.

Dans le domaine de l'horlogerie, un mécanisme de sonnerie peut être prévu dans un mouvement horloger de manière à générer un son ou une musique. Le timbre de la montre à sonnerie ou le clavier de la montre musicale sont disposés généralement dans la boîte de montre. Ainsi les vibrations du timbre ou des lames du clavier sont transmises aux différentes pièces d'habillage. Ces pièces d'habillage sont par exemple la carrure, la lunette, la glace et le fond de la boîte de montre. Ces grandes pièces d'habillage se mettent à rayonner du son dans l'air sous l'effet des vibrations transmises. Lorsqu'un son est produit soit par un timbre frappé par un marteau, soit par une ou plusieurs lames du clavier en vibration, ces pièces d'habillage sont capables de rayonner le son produit dans l'air.In the field of horology, a striking mechanism can be provided in a watch movement so as to generate a sound or a music. The timbre of the bell watch or the keyboard of the musical watch are generally placed in the watch case. Thus the vibrations of the timbre or the keyboard blades are transmitted to the different parts of dressing. These pieces of clothing are for example the middle part, the bezel, the ice and the bottom of the watch case. These large pieces of clothing begin to radiate sound in the air under the effect of transmitted vibrations. When a sound is produced either by a stamp struck by a hammer or by one or more blades of the vibrating keyboard, these pieces of clothing are able to radiate the sound produced in the air.

De manière conventionnelle dans une telle montre musicale ou à sonnerie, le rendement acoustique, sur la base de la transduction vibro-acoustique complexe des pièces d'habillage, est faible. Pour améliorer et augmenter le niveau acoustique perçu par l'utilisateur de la montre à sonnerie ou musicale, il doit être tenu compte de la matière, de la géométrie et des conditions aux limites des pièces d'habillage. Les configurations de ces pièces d'habillage sont aussi dépendantes de l'esthétique de la montre et des contraintes de fonctionnement, ce qui peut limiter les possibilités d'adaptation.Conventionally in such a musical or striking watch, the acoustic efficiency, based on the complex vibro-acoustic transduction of the trim pieces, is low. To improve and increase the acoustic level perceived by the user of the bell or musical watch, the material, geometry and boundary conditions of the trim pieces must be taken into account. The configurations of these pieces of clothing are also dependent on the aesthetics of the watch and operating constraints, which may limit the possibilities of adaptation.

Pour améliorer encore le rendement vibro-acoustique du mécanisme de sonnerie, il peut être prévu une membrane disposée à l'intérieur de la boîte de montre. La membrane doit être dimensionnée pour que l'ensemble des notes générées par la vibration d'un ou plusieurs timbres, ou des lames d'un clavier soit rayonné efficacement. Il est de ce fait important que les fréquences des notes soient proches de celles des modes propres de la membrane pour lui permettre d'entrer en résonance.To further improve the vibro-acoustic performance of the striking mechanism, there may be provided a membrane disposed within the watch case. The membrane must be dimensioned so that all the notes generated by the vibration of one or more timbres, or the blades of a keyboard is radiated effectively. It is therefore important that the frequencies of the notes are close to those of the eigen modes of the membrane to enable it to come into resonance.

On constate à ce titre qu'une forte densité modale sur une bande de fréquences restreinte par exemple entre 500 Hz et 3.5 kHz est difficile à obtenir, en utilisant des membranes standard uniformes, car cette caractéristique n'est compatible qu'avec des membranes uniformes de très faible raideur ou de très grande masse. Les deux caractéristiques ne sont pas avantageuses, parce qu'en réduisant la fréquence du premier mode de résonance autour de 1'000 Hz de cette manière, la fréquence des modes excités, très peu performants acoustiquement, est aussi réduite en dessous de 4'000 Hz. L'énergie mécanique est alors dissipée dans des modes de vibration de la membrane peu efficaces acoustiquement. Le rendement de rayonnement, qui est défini logiquement comme le rapport entre l'énergie de l'onde acoustique rayonnée divisée par l'énergie totale transférée à la membrane, est alors réduit sur quasiment toute la bande fréquentielle d'intérêt. Il est donc difficile d'obtenir une résonance sur chaque note générée du mécanisme de sonnerie, ce qui constitue un inconvénient des membranes de l'état de la technique.It can be seen in this respect that a high modal density over a restricted frequency band, for example between 500 Hz and 3.5 kHz, is difficult to obtain, by using standard uniform membranes, since this characteristic is compatible only with uniform membranes. very low stiffness or very large mass. The two features are not advantageous, because by reducing the frequency of the first resonance mode around 1'000 Hz in this way, the frequency of the excited modes, which are not very acoustically efficient, is also reduced below 4'000. Hz. The mechanical energy is then dissipated in vibration modes of the acoustically inefficient membrane. The radiation efficiency, which is logically defined as the ratio between the energy of the radiated acoustic wave divided by the total energy transferred to the membrane, is then reduced over almost the entire frequency band of interest. It is therefore difficult to obtain a resonance on each generated note of the striking mechanism, which is a disadvantage of the membranes of the state of the art.

On peut citer à ce titre la demande de brevet EP 2 461 219 A1 , qui décrit une membrane de rayonnement acoustique pour une montre musicale ou à sonnerie. Cette membrane acoustique a une forme générale de cuvette avec son bord périphérique pris en sandwich entre une partie de la carrure et le fond de la boîte de montre. Cette membrane est conçue avec une ou deux régions de forme asymétrique formée dans le matériau de la membrane. Les deux régions excavées dans l'épaisseur générale de la membrane sont de dimension différente. Ces deux régions forment des ellipses, qui sont décalées l'une de l'autre par rapport au centre de la membrane et se superposent en partie. Avec ces ellipses dans la membrane, il est possible d'avoir un nombre double de modes propres de vibration pour chaque ellipse par rapport à une région de forme circulaire. Cependant cela ne permet pas d'augmenter la largeur de bande d'un mode vibratoire de la membrane pour obtenir une réponse vibratoire amplifiée sur une plus grande bande de fréquences, ce qui constitue un inconvénient.For example, the patent application EP 2 461 219 A1 , which describes an acoustic radiation membrane for a musical watch or bell. This acoustic membrane has a general shape of bowl with its peripheral edge sandwiched between a part of the middle part and the bottom of the watch case. This membrane is designed with one or two asymmetrically shaped regions formed in the membrane material. The two regions excavated in the general thickness of the membrane are of different size. These two regions form ellipses, which are offset from each other with respect to the center of the membrane and overlap in part. With these ellipses in the membrane, it is possible to have a double number of eigen modes of vibration for each ellipse with respect to a circular-shaped region. However, this does not make it possible to increase the bandwidth of a vibratory mode of the membrane to obtain an amplified vibratory response over a larger frequency band, which is a drawback.

La demande de brevet CH 704 673 A3 décrit une membrane de rayonnement acoustique pour une montre musicale ou à sonnerie tout comme la demande de brevet EP 2 461 219 A1 . La membrane comprend encore un organe de retenue coopérant avec un organe intérieur de butée du fond de la boîte de montre. Cependant, la membrane n'est pas prévue pour obtenir une réponse vibratoire amplifiée sur une grande bande de fréquences, ce qui constitue un inconvénient.The patent application CH 704 673 A3 describes an acoustic radiation membrane for a musical or striking watch just like the patent application EP 2 461 219 A1 . The membrane further comprises a retaining member cooperating with an internal abutment member of the bottom of the watch case. However, the membrane is not designed to obtain an amplified vibratory response over a large frequency band, which is a drawback.

Le brevet CH 311 296 A décrit une montre-bracelet, qui comprend entre le fond de la boîte et le mouvement une membrane de rayonnement acoustique. Une saillie est réalisée sur la membrane pour être frappée par un marteau pour générer un son. Cependant, la membrane n'est pas prévue pour obtenir une réponse vibratoire amplifiée sur une grande bande de fréquences, ce qui constitue un inconvénient.The patent CH 311 296 A describes a wristwatch, which comprises between the bottom of the box and the movement an acoustic radiation membrane. A protrusion is made on the membrane to be struck by a hammer to generate a sound. However, the membrane is not designed to obtain an amplified vibratory response over a large frequency band, which is a drawback.

L'invention a donc pour but de pallier aux inconvénients de l'état de la technique susmentionné en fournissant une membrane de rayonnement acoustique pour une montre musicale ou une montre à sonnerie, réalisée de telle manière à obtenir une réponse vibratoire amplifiée de la membrane sur une plus grande largeur de bande de fréquences.The object of the invention is therefore to overcome the drawbacks of the above-mentioned state of the art by providing an acoustic radiation membrane for a musical watch or a striking watch, made in such a way as to obtain an amplified vibratory response of the membrane on a greater bandwidth of frequencies.

A cet effet, l'invention concerne une membrane de rayonnement acoustique comprenant les caractéristiques définies dans les revendications indépendantes 1 et 2.For this purpose, the invention relates to an acoustic radiation membrane comprising the characteristics defined in independent claims 1 and 2.

Des formes particulières de la membrane de rayonnement acoustique sont définies dans les revendications dépendantes 3 à 10.Particular forms of the acoustic radiation membrane are defined in dependent claims 3 to 10.

Un avantage de la membrane de rayonnement acoustique réside dans le fait que la partie centrale est réalisée sous forme de piston, comme selon le principe d'un haut-parleur, de manière à assurer l'augmentation de l'amplitude de vibration notamment sur la bande de fréquences de 500 Hz à 3.5 kHz. Avec une telle forme complexe géométrique de la membrane acoustique dans un matériau déterminé et d'une épaisseur générale définie avec des dimensions en plan, comparables aux dimensions en plan d'une boîte ou glace de montre, la réponse acoustique de la membrane est relativement uniforme dans cet intervalle de fréquences.An advantage of the acoustic radiation membrane lies in the fact that the central part is made in the form of a piston, as according to the principle of a loudspeaker, so as to ensure the increase of the amplitude of vibration especially on the frequency band from 500 Hz to 3.5 kHz. With such a geometric complex shape of the acoustic membrane in a determined material and a defined overall thickness with plan dimensions, comparable to the plan dimensions of a box or watch ice, the acoustic response of the membrane is relatively uniform in this frequency range.

La raison de cet avantage est que, pour une telle construction, la fréquence du mode de vibration fondamental, qui est le plus efficace acoustiquement, peut être réduite autour de 1'000 Hz, sans que la fréquence des modes excités, peu efficaces acoustiquement, soit réduite considérablement. De cette manière, la membrane répond, dans toute la bande fréquentielle d'intérêt (500-3'500 Hz) selon la déformation spatiale propre de son mode fondamental, ce qui permet de maximiser le rayonnement acoustique.The reason for this advantage is that, for such a construction, the frequency of the fundamental vibration mode, which is the most acoustically effective, can be reduced around 1'000 Hz, without the frequency of the excited modes, acoustically inefficient, or reduced considerably. In this way, the membrane responds, throughout the frequency band of interest (500-3'500 Hz) according to the specific spatial deformation of its fundamental mode, which allows to maximize the acoustic radiation.

Avantageusement, la partie centrale de la membrane possède une déformée du premier mode de vibration différente d'une membrane standard à fond plat. Le déplacement selon la normale à la partie centrale de la membrane est identique sur l'ensemble de la surface de la partie centrale. Cela permet d'augmenter sensiblement le rayonnement acoustique et garantir une amplification d'un ensemble de notes générées dans la montre musicale ou à sonnerie. Le premier mode de vibration de chaque note générée se trouve donc au moins dans la gamme de fréquences entre 500 Hz et 3.5 kHz. Un deuxième mode propre de vibration se trouve également dans la gamme de fréquences entre 500 Hz et 3.5 kHz. De plus la largeur du pic d'au moins le premier mode de vibration est plus importante que pour une membrane standard à fond plat.Advantageously, the central portion of the membrane has a deformed first vibration mode different from a standard flat-bottomed membrane. The displacement according to the normal to the central part of the membrane is identical on the whole of the surface of the central part. This significantly increases the acoustic radiation and ensure amplification of a set of notes generated in the musical watch or ringing. The first mode of vibration of each generated note is therefore at least in the frequency range between 500 Hz and 3.5 kHz. A second natural mode of vibration is also in the frequency range between 500 Hz and 3.5 kHz. In addition, the width of the peak of at least the first mode of vibration is greater than for a standard flat-bottomed membrane.

Avantageusement, la membrane peut être réalisée en métal amorphe ou en verre métallique, ou également en or ou en platine, voire en laiton, en titane, en aluminium ou dans un autre matériau ayant une densité, un module d'Young et une limite élastique, qui sont similaires. Avec une telle membrane, l'élargissement de la bande sonore peut être combiné avec un amortissement interne très faible, ce qui permet d'obtenir un très bon rendement sonore.Advantageously, the membrane may be made of amorphous metal or metal glass, or also of gold or platinum, or even brass, titanium, aluminum or another material having a density, a Young's modulus and an elastic limit , which are similar. With such a membrane, the widening of the soundtrack can be combined with a very low internal damping, which makes it possible to obtain a very good sound output.

Les buts, avantages et caractéristiques de la membrane de rayonnement acoustique pour une montre musicale ou une montre à sonnerie apparaîtront mieux dans la description suivante sur la base d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :

  • les figures 1a et 1b représentent de manière simplifiée une vue tridimensionnelle et une coupe diamétrale selon I-I de la figure 1a d'une forme d'exécution de la membrane de rayonnement acoustique selon l'invention,
  • la figure 2 représente un graphe de la réponse en fréquence, intégrée sur tout le volume de la membrane, de l'amplitude de la vitesse selon la normale à la membrane pour une membrane standard en verre métallique, et une membrane en verre métallique selon la forme d'exécution des figures 1a et 1b, et
  • la figure 3 représente le graphe du rapport entre les réponses en fréquence montrées à la figure 2 de la membrane selon l'invention et d'une membrane standard.
The purposes, advantages and characteristics of the acoustic radiation membrane for a musical watch or a bell watch will appear better in the following description on the basis of at least one non-limiting embodiment illustrated by the drawings in which:
  • the Figures 1a and 1b represent in a simplified way a three-dimensional view and a diametral section along II of the figure 1a of an embodiment of the acoustic radiation membrane according to the invention,
  • the figure 2 represents a graph of the frequency response, integrated over the entire volume of the membrane, the amplitude of the speed according to the membrane normal for a standard metal glass membrane, and a metallic glass membrane in the form of execution of Figures 1a and 1b , and
  • the figure 3 represents the graph of the ratio of the frequency responses shown in FIG. figure 2 of the membrane according to the invention and a standard membrane.

Dans la description suivante, il sera fait référence principalement à la configuration d'une membrane de rayonnement acoustique, pour équiper notamment une montre musicale, ou une montre à sonnerie. La membrane de rayonnement acoustique est réalisée avec une forme complexe pour amplifier l'amplitude de vibration de différentes notes générées dans une boîte de montre. La membrane est dimensionnée de telle manière à amplifier notamment le premier mode de vibration, voire un second mode de vibration dans une bande de fréquences de 500 Hz à 3.5 kHz.In the following description, reference will be made mainly to the configuration of an acoustic radiation membrane, in particular to equip a musical watch, or a bell watch. The acoustic radiation membrane is made with a complex shape to amplify the vibration amplitude of different notes generated in a watch case. The membrane is dimensioned in such a way as to amplify in particular the first mode of vibration, or even a second mode of vibration in a frequency band of 500 Hz to 3.5 kHz.

Les figures 1a et 1b représentent une forme d'exécution de la membrane de rayonnement acoustique 1, qui peut équiper une montre musicale ou une montre à sonnerie. En fonction de la forme de la boîte de montre, la membrane de rayonnement acoustique 1 peut être en vue de dessus d'une forme générale rectangulaire, ou polygonale ou de préférence circulaire comme représenté sur la figure 1a.The Figures 1a and 1b represent an embodiment of the acoustic radiation membrane 1, which can equip a musical watch or a bell watch. Depending on the shape of the watch case, the acoustic radiation membrane 1 may be in plan view of a generally rectangular, or polygonal or preferably circular shape as shown in FIG. figure 1a .

La membrane 1 est configurée par exemple sous la forme d'une cuvette avec une partie centrale active 2, 2', 5, définissant un fond de cuvette, une paroi latérale 3 de forme cylindrique, voire légèrement conique, et une bordure périphérique 4. La partie centrale active est composée d'une base centrale 2 reliée par l'intermédiaire d'éléments de liaison 5 à un anneau périphérique 2', qui peut être concentrique à la base centrale. Ces éléments de liaison sont sous la forme de languettes et sont définis comme des secteurs 5. Les secteurs 5 sont de préférence des secteurs circulaires ou angulaires partant de la périphérie circulaire de la base et rattachés à la bordure intérieure de l'anneau. Des ouvertures 5' peuvent être prévues entre chaque secteur angulaire 5.The membrane 1 is configured for example in the form of a bowl with an active central portion 2, 2 ', 5, defining a bottom of a bowl, a side wall 3 of cylindrical shape, or slightly conical, and a peripheral edge 4. The active central portion is composed of a central base 2 connected by means of connecting elements 5 to a peripheral ring 2 ', which can be concentric with the central base. These connecting elements are in the form of tabs and are defined as sectors 5. The sectors 5 are preferably circular or angular sectors starting from the circular periphery of the base and attached to the inner edge of the ring. Openings 5 'may be provided between each angular sector 5.

Les secteurs angulaires 5 peuvent être régulièrement répartis à la périphérie de la base centrale 2, qui est sous forme de disque, et peuvent avoir de mêmes dimensions. Les ouvertures 5' ont des formes générales équivalentes à chaque secteur angulaire. L'angle de chaque secteur 5 déterminé depuis le centre de la membrane 1 peut être identique à l'angle décrit par chaque ouverture 5'. Il peut être prévu donc 4 secteurs angulaires et 4 ouvertures chacun défini selon un angle de 45°. Cependant l'angle de chaque secteur peut aussi être différent de l'angle de chaque ouverture.The angular sectors 5 may be evenly distributed around the periphery of the central base 2, which is in disk form, and may have the same dimensions. The openings 5 'have general shapes equivalent to each angular sector. The angle of each sector determined from the center of the membrane 1 may be identical to the angle described by each opening 5 '. It can be expected therefore 4 angular sectors and 4 openings each defined at an angle of 45 °. However the angle of each sector can also be different from the angle of each opening.

L'anneau périphérique 2', qui est disposé entre les différents secteurs 5 et un bord de la paroi latérale 3, est un anneau circulaire selon la figure 1a. Cet anneau périphérique 2' peut être configuré comme une portion conique avec un angle d'ouverture par rapport à l'axe central de la membrane assez grand par exemple de l'ordre de 80°. L'anneau périphérique est configuré pour s'étendre vers l'extérieur de la cuvette.The peripheral ring 2 ', which is disposed between the different sectors 5 and an edge of the side wall 3, is a circular ring according to the figure 1a . This peripheral ring 2 'can be configured as a conical portion with an opening angle with respect to the central axis of the membrane, which is large enough, for example of the order of 80 °. The peripheral ring is configured to extend outwardly of the bowl.

Il est à noter que la base centrale 2 peut être aussi de forme rectangulaire tout comme l'anneau périphérique. Dans ce cas au moins 4 éléments de liaison 5, tels que des secteurs de liaison, sont prévus sur chaque côté de la base rectangulaire. Il est aussi possible de concevoir cette partie centrale avec des premiers et seconds secteurs de liaison reliés respectivement à la base centrale 2 et à l'anneau périphérique 2'. Une alternance de premiers et seconds secteurs est prévue sur toute la périphérie de la base centrale, mais avec des premiers secteurs ayant une épaisseur différente des seconds secteurs. Dans ce cas, aucune ouverture 5' n'est prévue entre la base centrale 2 et l'anneau périphérique 2'.It should be noted that the central base 2 may also be rectangular in shape as the peripheral ring. In this case at least 4 connecting elements 5, such as connecting sectors, are provided on each side of the rectangular base. It is also possible to design this central part with first and second connecting sectors respectively connected to the central base 2 and the peripheral ring 2 '. An alternation of first and second sectors is foreseen on all the periphery of the central base, but with first sectors having a different thickness of the second sectors. In this case, no opening 5 'is provided between the central base 2 and the peripheral ring 2'.

Il est encore à noter qu'en lieu et place d'une bordure périphérique 4, il peut être prévu une bordure sous forme de plusieurs portions périphériques réparties sur le pourtour de la paroi latérale 3 pour la fixation de la membrane dans une boîte de montre.It should also be noted that instead of a peripheral edge 4, it can be provided a border in the form of several peripheral portions distributed around the perimeter of the side wall 3 for fixing the membrane in a watch case .

La membrane de rayonnement acoustique 1 avec tous les éléments, qui la composent, peut être formée en une seule pièce dans un même matériau, qui peut être métallique. Ce matériau peut être du métal amorphe ou du verre métallique dans l'exemple décrit et en référence aux figures 2 et 3 expliquées ci-après. Toutefois cette membrane peut être réalisée dans un autre matériau, tel que l'or ou le platine, voire le laiton, le titane, l'aluminium par exemple avec une densité, un module d'Young et une limite élastique, qui sont similaires.The acoustic radiation membrane 1 with all the elements, which compose it, can be formed in one piece in the same material, which can be metallic. This material may be amorphous metal or metal glass in the example described and with reference to figures 2 and 3 explained below. However, this membrane may be made of another material, such as gold or platinum, or even brass, titanium, aluminum for example with a density, a Young's modulus and an elastic limit, which are similar.

La membrane peut aussi être réalisée en combinant deux matériaux différents, par soudure, brasure, chassage ou revêtement. Selon une version non limitative, la partie centrale 2 est réalisée dans un matériau M1 tandis que l'anneau périphérique est réalisé dans un deuxième matériau M2 différent de M1. Selon une deuxième version non limitative, la partie centrale 2 est réalisée dans un matériau M1 tandis que les éléments de liaison 5 sont réalisés dans un deuxième matériau M2 différent de M1. Selon une troisième version non limitative, la membrane est réalisée dans le matériau M1, alors que le revêtement de surface est réalisé par le matériau M2. Ce revêtement a une épaisseur différente pour la partie centrale 2, l'anneau périphérique 2' et les éléments de liaison 5 et peut être d'une épaisseur inhomogène.The membrane can also be made by combining two different materials, by welding, brazing, driving or coating. According to a non-limiting version, the central portion 2 is made of a material M1 while the peripheral ring is made of a second material M2 different from M1. According to a second nonlimiting version, the central portion 2 is made of a material M1 while the connecting elements 5 are made of a second material M2 different from M1. According to a third nonlimiting version, the membrane is made in the material M1, while the surface coating is made by the material M2. This coating has a different thickness for the central portion 2, the peripheral ring 2 'and the connecting elements 5 and may be of inhomogeneous thickness.

La membrane acoustique 1 peut être montée dans une boîte de montre non représentée avec sa bordure périphérique 4, qui est pincée de manière traditionnelle entre le fond et la carrure de la boîte de montre avec une garniture d'étanchéité. Après montage de la membrane dans la boîte de montre, la partie centrale sous forme de piston est sans contact avec d'autres pièces de la montre de manière à pouvoir librement vibrer. La partie centrale, et notamment sa base centrale 2, est disposée à proximité et sans contact du fond de la boîte de montre. Selon les figures 1a et 1b, qui représentent la membrane selon des vues de dessous, la base centrale 2 et les secteurs angulaires 5 sont de forme plane et disposés du côté du fond de la boîte de montre par l'intermédiaire de l'anneau périphérique conique 2' relié à la paroi latérale 3.The acoustic membrane 1 can be mounted in a not shown watch case with its peripheral edge 4, which is clamped in a traditional manner between the bottom and the middle of the watch case with a seal. After mounting the membrane in the watch case, the central portion in the form of piston is without contact with other parts of the watch so as to freely vibrate. The central part, and in particular its central base 2, is disposed close to and without contact with the bottom of the watch case. According to Figures 1a and 1b , which represent the membrane according to views from below, the central base 2 and the angular sectors 5 are of flat shape and arranged on the bottom side of the watch case via the conical peripheral ring 2 'connected to the side wall 3.

La partie centrale depuis sa liaison à la paroi latérale 3 par l'intermédiaire de l'anneau périphérique 2' peut avoir un diamètre supérieur à 15 mm et de préférence entre 20 et 40 mm. Ce diamètre peut être sensiblement équivalent à celui d'une glace de montre non représentée, étant donné que la bordure périphérique 4 peut être pincée entre un support périphérique du fond de la boîte de montre et un rebord intérieur circulaire de la carrure. La base centrale 2 peut être d'un diamètre compris entre 60% et 70% du diamètre de la partie centrale complète. La base centrale peut être d'un diamètre compris entre 10 et 27 mm en fonction du diamètre respectif de toute la partie centrale, alors que l'anneau périphérique peut avoir sa bordure intérieure d'un diamètre de 13 mm pour un diamètre de la partie centrale de 15 mm ou d'un diamètre de 34 mm pour un diamètre de la partie centrale de 40 mm.The central portion from its connection to the side wall 3 through the peripheral ring 2 'may have a diameter greater than 15 mm and preferably between 20 and 40 mm. This diameter can be substantially equivalent to that of a not shown watch glass, since the peripheral edge 4 can be pinched between a peripheral support of the bottom of the watch case and a circular inner rim of the middle part. The central base 2 may be of a diameter of between 60% and 70% of the diameter of the complete central part. The central base may have a diameter of between 10 and 27 mm depending on the respective diameter of the entire central part, while the peripheral ring may have its inner edge with a diameter of 13 mm for a diameter of the part. central 15 mm or 34 mm diameter for a central diameter of 40 mm.

L'épaisseur de la base centrale 2 en forme de disque peut être identique en tout point et plus importante que l'épaisseur de l'anneau périphérique 2'. Les secteurs angulaires 5 ont une épaisseur identique en tout point et inférieure à l'épaisseur de l'anneau périphérique. L'épaisseur de chaque secteur angulaire est prévue bien plus faible que l'épaisseur de la base centrale, qui définit une masse centrale. L'épaisseur de chaque secteur peut être choisie entre 50 et 100 µm, alors que l'épaisseur de l'anneau périphérique 2' peut être supérieure à 100 µm et inférieure à 1 mm. L'épaisseur de la base centrale 2 peut être au moins le double de l'épaisseur de l'anneau périphérique.The thickness of the central base 2 disc-shaped may be identical at any point and greater than the thickness of the peripheral ring 2 '. The angular sectors 5 have an identical thickness at all points and less than the thickness of the peripheral ring. The thickness of each angular sector is provided much lower than the thickness of the central base, which defines a central mass. The thickness of each sector may be chosen between 50 and 100 μm, while the thickness of the peripheral ring 2 'may be greater than 100 μm and less than 1 μm. mm. The thickness of the central base 2 may be at least twice the thickness of the peripheral ring.

La partie centrale sous forme de piston peut ainsi être dimensionnée en fonction du matériau la constituant de telle manière à amplifier la vibration sur la bande de fréquences de 500 Hz à 3.5 kHz. La réponse acoustique de la membrane est ainsi relativement uniforme dans cette bande de fréquences. Comme la membrane est montée dans une montre à sonnerie ou musicale, le premier mode de vibration de chaque note générée se trouve donc au moins dans la gamme de fréquences entre 500 Hz et 3.5 kHz.The central portion in the form of a piston can thus be dimensioned according to the material constituting it in such a way as to amplify the vibration over the frequency band from 500 Hz to 3.5 kHz. The acoustic response of the membrane is thus relatively uniform in this frequency band. As the membrane is mounted in a bell or musical watch, the first mode of vibration of each note generated is therefore at least in the frequency range between 500 Hz and 3.5 kHz.

Pour bien représenter l'avantage de réaliser une membrane de rayonnement acoustique ayant une partie centrale sous forme d'un piston comme selon le principe d'un haut-parleur, on peut se référer aux graphiques des figures 2 et 3. La figure 2 représente un graphe de la réponse en fréquence, intégrée sur tout le volume de la membrane, de l'amplitude de la vitesse selon la normale à la membrane pour une membrane standard en verre métallique, et une membrane en verre métallique selon l'invention. Cette quantité est mathématiquement définie par R(f) = ∫vol |vz(x, y, z, f)| dx dy dz. La figure 3 représente un graphe du rapport entre les réponses en fréquence de la membrane selon l'invention et de la membrane standard.In order to better represent the advantage of producing an acoustic radiation membrane having a central part in the form of a piston as according to the principle of a loudspeaker, reference may be made to the graphs of figures 2 and 3 . The figure 2 represents a graph of the frequency response, integrated over the entire volume of the membrane, the amplitude of the speed according to the normal to the membrane for a standard metal glass membrane, and a metal glass membrane according to the invention. This quantity is mathematically defined by R (f) = ∫ vol | v z (x, y, z, f) | dx dy dz. The figure 3 represents a graph of the ratio between the frequency responses of the membrane according to the invention and the standard membrane.

En regard des graphiques représentés aux figures 2 et 3, on constate que la largeur du pic du premier mode de vibration entre 1.5 kHz et 2 kHz, par exemple à 1.75 kHz, est plus grande et avec une amplitude plus importante que pour un pic du premier mode de vibration d'une membrane standard. De plus, il est encore prévu un autre pic d'un second mode de vibration entre 2.5 kHz et 3 kHz pour la membrane selon l'invention. Une telle membrane de rayonnement acoustique, qui est réalisée avec une partie centrale active de forme complexe, permet d'augmenter l'amplitude de vibration dans la gamme de fréquences de 500 Hz à 3.5 kHz. Cela se différencie avantageusement par rapport à une membrane standard, dont la partie centrale est uniquement plate.Next to the graphs represented in figures 2 and 3 it is found that the peak width of the first vibration mode between 1.5 kHz and 2 kHz, for example at 1.75 kHz, is larger and with a greater amplitude than for a peak of the first vibration mode of a standard membrane. In addition, there is still another peak of a second vibration mode between 2.5 kHz and 3 kHz for the membrane according to the invention. Such an acoustic radiation membrane, which is made with an active central part of complex shape, makes it possible to increase the amplitude of vibration in the frequency range of 500 Hz to 3.5 kHz. This differs advantageously compared to a standard membrane, the central portion is only flat.

Il est encore à noter qu'une membrane sous la forme d'un piston selon l'invention permet d'avoir un déplacement identique sur l'ensemble de la surface et ainsi garantir un effet rayonnant plus efficace que toute membrane de l'état de la technique.It should also be noted that a diaphragm in the form of a piston according to the invention makes it possible to have an identical displacement over the entire surface and thus to guarantee a radiating effect that is more effective than any membrane in the state of the technique.

A partir de la description qui vient d'être faite, plusieurs variantes de réalisation de la membrane de rayonnement acoustique pour une montre musicale ou une montre à sonnerie peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. Les secteurs reliant la base centrale à l'anneau périphérique peuvent avoir une épaisseur variable, mais inférieure à l'épaisseur de l'anneau et de la base centrale.From the description that has just been given, several variants of the acoustic radiation membrane for a musical watch or a striking watch can be designed by those skilled in the art without departing from the scope of the invention defined by the revendications. The sectors connecting the central base to the peripheral ring may have a variable thickness, but less than the thickness of the ring and the central base.

Claims (10)

  1. Acoustic radiating membrane (1) for a musical watch or a striking watch (10), the membrane including a central active portion (2, 2', 5) and an edge portion (4) for retaining the membrane in a watch case, characterized in that the central portion includes a central base (2) connected by connecting elements (5) to a peripheral ring (2'), the central base, the connecting elements and the peripheral ring being of determined dimensions to amplify a first vibration mode of one or more notes in a frequency range of between 500 Hz and 3.5 kHz, the central base (2) being of circular shape,
    characterized in that the connecting elements (5) are angular sectors arranged on the periphery of the central base (2), and in that openings (5') are provided between each angular sector in a number equal to the angular sectors.
  2. Acoustic radiating membrane (1) for a musical watch or a striking watch (10), the membrane including a central active portion (2, 2', 5) and an edge portion (4) for retaining the membrane in a watch case, characterized in that the central portion includes a central base (2) connected by connecting elements (5) to a peripheral ring (2'), the central base, the connecting elements and the peripheral ring being of determined dimensions to amplify a first vibration mode of one or more notes in a frequency range of between 500 Hz and 3.5 kHz, the central base (2) being of circular shape,
    characterized in that the connecting elements (5) are first and second angular connecting sectors respectively connected to the central base (2) and to the peripheral ring (2'), in that the first and second angular sectors are arranged alternately over the entire periphery of the central base (2), and in that the first sectors have a different thickness from the second sectors.
  3. Membrane (1) according to any of claims 1 and 2, characterized in that the central base (2) is in the form of a flat disc.
  4. Membrane (1) according to any of claims 1 and 2, characterized in that the diameter of the central base (2) is comprised between 60% and 70% of the diameter of the whole central portion.
  5. Membrane (1) according to any of claims 1 and 2, characterized in that the peripheral ring (2') is of generally circular shape and is concentric to the central base (2).
  6. Membrane (1) according to claim 5, the membrane having a general dome shape with the central portion (2, 2', 5) defining a base and being connected to a lateral wall (3) via the peripheral ring (2'), and the peripheral edge portion (4) from the lateral wall, characterized in that the peripheral ring (2') is configured as a conical portion with an opening angle defined with respect to the central axis of the membrane.
  7. Membrane (1) according to claim 1, characterized in that the angular sectors have identical dimensions and are regularly arranged over the periphery of the central base (2).
  8. Membrane (1) according to claim 1, characterized in that the general shapes of the openings (5') are equivalent to each angular sector (5).
  9. Membrane (1) according to claim 1, characterized in that the thickness of the angular sectors is identical at every point, in that the thickness of the angular sectors is smaller than the thickness of the peripheral ring, and in that the thickness of the peripheral ring (2') is smaller than the thickness of the central base (2).
  10. Membrane (1) according to claim 1, characterized in that the central base (2) is connected to the peripheral ring (2') by 4 angular sectors (5), the angle of each angular sector determined from the centre of the membrane (1) being 45°.
EP13196238.3A 2013-12-09 2013-12-09 Acoustic dispersion membrane for a musical watch Active EP2881807B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP13196238.3A EP2881807B1 (en) 2013-12-09 2013-12-09 Acoustic dispersion membrane for a musical watch
US14/556,370 US9207645B2 (en) 2013-12-09 2014-12-01 Acoustic radiating membrane for a musical watch
JP2014245572A JP6067662B2 (en) 2013-12-09 2014-12-04 Acoustic radiation membrane for musical watches
CN201410748666.5A CN104698808B (en) 2013-12-09 2014-12-09 Acoustic membrane for music table
HK15111849.3A HK1211091A1 (en) 2013-12-09 2015-12-02 Acoustic radiating membrane for a musical watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13196238.3A EP2881807B1 (en) 2013-12-09 2013-12-09 Acoustic dispersion membrane for a musical watch

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EP2881807A1 EP2881807A1 (en) 2015-06-10
EP2881807B1 true EP2881807B1 (en) 2019-11-27

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US (1) US9207645B2 (en)
EP (1) EP2881807B1 (en)
JP (1) JP6067662B2 (en)
CN (1) CN104698808B (en)
HK (1) HK1211091A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710166B1 (en) * 2014-10-15 2018-12-14 Montres Breguet Sa Arrangement with acoustic radiation membranes for a musical watch or bell.
EP3644132B1 (en) * 2018-10-26 2022-06-08 Blancpain SA Striking or musical watch with at least one acoustic radiation membrane, and method of manufacturing said membrane
CN115735164A (en) * 2020-07-01 2023-03-03 百达翡丽日内瓦公司 Timepiece comprising a vibration amplifying device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH311296A (en) * 1953-07-29 1955-11-30 Ditisheim & Cie Fabriques Vulc Wristwatch alarm clock.
FR1226231A (en) * 1958-07-16 1960-07-08 Magneti Marelli Spa Electro-acoustic warning device, in particular for motor vehicles
JPS4717675U (en) * 1971-03-30 1972-10-30
US3906713A (en) * 1973-08-29 1975-09-23 Citizen Watch Co Ltd Electronic alarm wristwatch
JPS62116000A (en) * 1985-11-14 1987-05-27 Seikosha Co Ltd Alarm timepiece
JP2905350B2 (en) * 1992-11-18 1999-06-14 スター精密 株式会社 Electroacoustic transducer
JPH0677396U (en) * 1993-04-07 1994-10-28 オンキヨー株式会社 High temperature speaker
CH689346B5 (en) 1995-05-03 1999-09-15 Smh Management Services Ag Device for acoustic alarm safety.
JP2000134696A (en) * 1998-10-28 2000-05-12 Matsushita Electric Ind Co Ltd Electromagnetic type electroacoustic transducer
JP2001169386A (en) * 1999-10-29 2001-06-22 Kh Technology Corp Radiation diaphragm and high frequency transducer
GB2359213B (en) * 1999-10-29 2004-05-19 Kef Audio High frequency transducer
EP3404493B1 (en) * 2010-03-16 2021-09-01 Montres Breguet S.A. Chiming watch provided with an acoustic membrane
EP2461219B1 (en) * 2010-12-02 2020-10-14 Montres Breguet SA Acoustic membrane for a musical box or an alarm watch
CH704183A2 (en) 2010-12-02 2012-06-15 Montres Breguet Sa Acoustic radiation membrane for e.g. music watch, has cavities or projecting portions formed in form of honeycomb, where shape and dimensions of cavities are adapted based on type of material as well as notes to be radiated by membrane
CH704673A2 (en) * 2011-03-22 2012-09-28 Montres Breguet Sa Cup-shaped removable acoustic radiation membrane for musical/striking watch, has holding member engaging with inner stop member of bottom of case to limit bending of membrane following over/under pressure based on environmental conditions

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
JP6067662B2 (en) 2017-01-25
CN104698808B (en) 2017-09-01
US20150160618A1 (en) 2015-06-11
CN104698808A (en) 2015-06-10
JP2015114322A (en) 2015-06-22
HK1211091A1 (en) 2016-05-13
EP2881807A1 (en) 2015-06-10
US9207645B2 (en) 2015-12-08

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