EP3537228B1 - Device for adjusting the vibration frequency of a bell of a chiming mechanism - Google Patents

Device for adjusting the vibration frequency of a bell of a chiming mechanism Download PDF

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Publication number
EP3537228B1
EP3537228B1 EP18159935.8A EP18159935A EP3537228B1 EP 3537228 B1 EP3537228 B1 EP 3537228B1 EP 18159935 A EP18159935 A EP 18159935A EP 3537228 B1 EP3537228 B1 EP 3537228B1
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EP
European Patent Office
Prior art keywords
gong
wheel
toothed
vibration frequency
mechanical arrangement
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.)
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Application number
EP18159935.8A
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German (de)
French (fr)
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EP3537228A1 (en
Inventor
Polychronis Nakis Karapatis
Younes Kadmiri
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.)
Montres Breguet SA
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Montres Breguet SA
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Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to CH00263/18A priority Critical patent/CH714716A2/en
Priority to EP18159935.8A priority patent/EP3537228B1/en
Publication of EP3537228A1 publication Critical patent/EP3537228A1/en
Application granted granted Critical
Publication of EP3537228B1 publication Critical patent/EP3537228B1/en
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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
    • 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
    • G10K1/08—Details or accessories of general applicability
    • G10K1/10—Sounding members; Mounting thereof; Clappers or other strikers

Definitions

  • the invention relates to a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece.
  • the striking mechanism further comprises at least one gong attached to a gong holder, and at least one hammer for striking the gong at predetermined instants.
  • the stamp used is a metal wire, which can be circular or rectilinear in shape. This circular metal wire can be arranged for example around the movement, in the watch cage.
  • This gong is mounted on at least one gong holder, which is generally secured to a watch plate, or to an element of the casing.
  • 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 vibration of the timbre is also transmitted to the trim elements in the watch case via the gong holder, and radiated into the air.
  • the vibro-acoustic improvements are obtained mainly by regulation elements to limit the noise of the mechanism during a chime, but also by watch exterior elements to increase the acoustic level of The ring.
  • the timbre of the ringing mechanism is poorly optimized to improve the acoustics during a ringing (the aesthetics of the ringing).
  • 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 arranged in contact on a part of the gong and maintained on a vibration node of a vibrational mode of the timbre to be selected. This makes it possible to block other vibrational modes.
  • This selector element can be moved over a portion of the stamp by a moving means, which makes it possible to select a vibratory mode in a non-irreversible manner.
  • no possibility of optimizing the configuration of the gong is described in order to be able to adapt a vibration frequency in a non-irreversible manner in order to ensure fine tuning with the casing of the watch, which constitutes a drawback.
  • 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, which constitutes a disadvantage.
  • the object of the invention is therefore to overcome the drawbacks of the aforementioned state of the art by providing a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, which makes it possible to very finely adjust the vibration frequency of a stamp in a non-irreversible way.
  • the invention relates to a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, which comprises the characteristics defined in independent claims 1 to 2.
  • a mechanical stress is applied to elastically deform the gong relative to its initial configuration in order to adjust its vibration frequency.
  • Traction or compression or flexion of the gong can be performed at least locally over a portion of its length.
  • the stamp or at least a portion of the stamp can also be twisted starting from its free end.
  • the free end of the stamp is formed with at least one flat on a non-circular surface or shape so as to be inserted or taken into a shape complementary to an element of the mechanical arrangement for its torsion driving.
  • a first element of the mechanical arrangement can be engaged with a part of the gong to impose a mechanical stress on it in order to adjust the frequency of vibration of the gong.
  • the figure 1 represents a first embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.
  • the adjustment device 1 can be part of the striking mechanism.
  • the striking mechanism comprises in particular at least one gong 3 mounted or fixed by a first end to a gong holder 2, and at least one hammer, not shown, which can be rotary or linear in order to strike the gong in determined periods. to produce sound.
  • the hammer is arranged to strike the stamp close to its attachment to the stamp holder 2.
  • the stamp holder 2 is for example fixed to an inner wall of the watch middle or also to a watch plate, which also supports the watch movement.
  • the adjustment device 1 comprises a mechanical arrangement operable inside a case of the watch, not shown, or from outside the case of the watch.
  • the mechanical arrangement may comprise a crown 8 linked to a winding stem 7 passing through the middle of the case. For example, by pulling or pressing on the crown with a finger of a user's hand, it may be envisaged to actuate the mechanical arrangement to adjust the vibration frequency of the gong.
  • the mechanical arrangement further comprises at least a first element 4 intended to act on a part of the gong to effect a mechanical stress on the gong for the adjustment of a natural frequency of vibration of the struck gong.
  • This first element 4 can be a ring coming on the gong, which can be in the form of a cylindrical rod. This ring can be fixed on a position of the length of the gong by means for example of a screw 4a or by another fixing means.
  • the first element 4 can also be in the form of a clip fixed to a position of the gong. According to the invention, the first element 4 coming into engagement with a part of the gong, is positioned close to a second free end of the gong 3.
  • the mechanical arrangement further comprises a wheel 6, which is a toothed wheel 6a and is mounted on the winding stem 7, and a actuation 5 in the form of a toothed rack 5a for meshing with the toothed wheel 6a.
  • This rectilinear actuation member 5 can be fixed directly to the first element 4 or be integral with the first element 4 and is arranged parallel to the gong 3, which in this form of rectilinear execution.
  • the stamp 3 can take other forms than that presented in figure 1 .
  • a further blocking element 9 may be provided to block the action of the mechanical arrangement.
  • This blocking element 9 can be an element in the form of a rotatably mounted ratchet which is placed between two teeth of the wheel 6 with teeth 6a to prevent it from rotating. It can be provided a blocking in both directions of rotation or at least in one direction of rotation. The blocking element 9 is placed in the blocking position in particular at the end of the gong vibration frequency adjustment.
  • a reduction stage may be provided between wheel 6 and rack 5 to facilitate the traction or compression of the gong.
  • the wheel 6 with teeth 6a acts directly on a notch of the first element 4 without the need for the actuating member 5.
  • the figures 2a and 2b represent a second embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.
  • the striking mechanism comprises at least one gong 3 mounted or fixed by a first end to a gong holder 2, and at least one hammer, not shown.
  • the hammer can be mounted in rotation or in linear motion to strike the gong 3 in determined periods to produce a sound.
  • the hammer is arranged to strike the gong close to its attachment to the gong holder 2.
  • the gong holder can be fixed to an interior wall of the watch middle or also to a watch plate, which also supports the movement watchmaker.
  • the adjustment device 1 comprises a mechanical arrangement operable inside a case of the watch, not shown, or from outside the case of the watch.
  • the mechanical arrangement may comprise a crown 8 linked to a stem 7, for example a winding stem 7 passing through the middle of the case.
  • the mechanical arrangement comprises at least a first element 4 intended to act on a part of the gong to effect a mechanical constraint of the gong for the adjustment of a natural frequency of vibration of the struck gong.
  • the mechanical stress in this second embodiment is a twist of at least part of gong 3.
  • This first element 4 can be a tip 4 of cylindrical shape, for example, having at a first end a non-circular opening 4′ of a shape complementary to an extrusion 3′ made at a second end of the gong 3.
  • the internal dimension of the opening 4 'of the tip is slightly greater than the outer dimension of the extrusion 3' of the stamp 3 to allow without difficulty to insert this extrusion 3' into the opening 4' of the tip 4.
  • the extrusion 3 ' is of a rectangular parallelepiped shape just like the opening 4'.
  • any other non-circular shape can be adopted for the extrusion 3' and the opening 4'.
  • the cylindrical endpiece 4 can be connected at a second end opposite the first end to the winding stem 7, which ends outside the watch case by the crown 8 for manual actuation.
  • the axis of the cylindrical end piece 4 is identical to the axis of the stem 7.
  • the gong 3 is presented in rectilinear form or any other form, and also arranged along the axis of end piece 4 and rod 7.
  • the mechanical arrangement also comprises a wheel 6 fixed on the rod 7 to mesh with another wheel 11 whose axis is perpendicular to the axis of the wheel 6.
  • a blocking element 9 is also provided to block the action of the mechanical arrangement.
  • the blocking element 9 can be an element in the form of a pawl or notch in order to be placed between two teeth of the other wheel 11 to prevent it from rotating, as well as the wheel 6.
  • the blocking element 9 is placed in the blocking position in particular after the adjustment of the vibration frequency of the gong.
  • the picture 3 represents a third embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.
  • This third embodiment is a variant of the principle described in relation to the figures 2a and 2b .
  • the mechanical arrangement also comprises at least a first element 4 intended to act on a part of the gong to perform a mechanical stress on the gong for the adjustment of a natural frequency of vibration of the stamp struck.
  • the mechanical stress in this second embodiment is a torsion of at least a part of the gong 3 in particular of the second end of the gong 3.
  • This second end of the gong is of non-circular shape with at least one flat on a surface.
  • the extrusion 3' is inserted into the opening 4' of the element 4, which can be a torsion cogwheel.
  • the torsion toothed wheel 4 is driven in rotation by a toothed wheel 6 meshing with the torsion toothed wheel.
  • This toothed wheel 6 is fixed on the winding stem 7, which ends towards the outside of the watch case by a crown 8 for manual actuation.
  • the axis of the toothed wheel 6 is the same as the axis of the rod 7.
  • a locking element 9 is further provided to block the toothed wheel 6 or possibly the torsion toothed wheel once the adjustment of frequency is over.
  • the shape of the stamp can be chosen, for example of circular or rectangular cross-section.
  • the thickness of the stamp can be less than or equal to 1 mm and the length can be between 1 cm and 10 cm.
  • the material of the stamp can be chosen from steel or a copper alloy or from gold or metallic glass, that is to say an amorphous metal or metallic alloy. This metallic glass may for example be based on zirconium, gold, platinum or gold with palladium, platinum and silver or any other metal capable of solidifying in amorphous form.

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention concerne un dispositif de réglage de fréquence de vibration d'au moins un timbre d'un mécanisme de sonnerie d'une pièce d'horlogerie. Le mécanisme de sonnerie comprend en outre au moins un timbre fixé à un porte-timbre, et au moins un marteau pour frapper le timbre en des instants prédéterminés.The invention relates to a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece. The striking mechanism further comprises at least one gong attached to a gong holder, and at least one hammer for striking the gong at predetermined instants.

ART ANTERIEURPRIOR ART

Dans le domaine de l'horlogerie, une architecture traditionnelle est utilisée pour réaliser des mouvements, qui sont munis de mécanismes de sonnerie, tels que des répétitions minutes et des réveils. Dans ces réalisations, le timbre utilisé est un fil métallique, qui peut être de forme circulaire ou rectiligne. Ce fil métallique de forme circulaire peut être disposé par exemple autour du mouvement, dans la cage de montre. Ce timbre est monté à au moins un porte-timbre, qui est généralement solidaire d'une platine de montre, ou à un élément de l'habillage.In the field of watchmaking, a traditional architecture is used to produce movements, which are provided with striking mechanisms, such as minute repeaters and alarm clocks. In these embodiments, the stamp used is a metal wire, which can be circular or rectilinear in shape. This circular metal wire can be arranged for example around the movement, in the watch cage. This gong is mounted on at least one gong holder, which is generally secured to a watch plate, or to an element of the casing.

La vibration du timbre est produite par l'impact généralement à proximité du porte-timbre d'au moins un marteau. Cette vibration est composée de plusieurs fréquences propres, dont le nombre et l'intensité, en particulier dans le domaine audible, dépendent de la géométrie du timbre, des conditions de fixation ou d'appui du timbre, des conditions de choc et des propriétés physiques du matériau. La vibration du timbre est également transmise aux éléments d'habillage dans la boîte de montre par l'intermédiaire du porte-timbre, et rayonnée dans l'air.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 vibration of the timbre is also transmitted to the trim elements in the watch case via the gong holder, and radiated into the air.

Dans une montre à mécanisme de sonnerie, les améliorations vibro-acoustiques sont obtenues principalement par des éléments de régulation pour limiter le bruit du mécanisme lors d'une sonnerie, mais aussi par des éléments d'habillage de la montre pour augmenter le niveau acoustique de la sonnerie. Par contre, le timbre du mécanisme de sonnerie est peu optimisé pour améliorer l'acoustique lors d'une sonnerie (l'esthétique de la sonnerie).In a watch with a chiming mechanism, the vibro-acoustic improvements are obtained mainly by regulation elements to limit the noise of the mechanism during a chime, but also by watch exterior elements to increase the acoustic level of The ring. On the other hand, the timbre of the ringing mechanism is poorly optimized to improve the acoustics during a ringing (the aesthetics of the ringing).

Il est connu de dimensionner et configurer le ou les timbres pour cibler d'une part une fréquence souhaitée de vibration acoustique, et d'autre part pour accorder au moins un des partiels du timbre des heures et du timbre des minutes ensembles. Dans ce cas de figure, on parle d'accordage de l'intervalle mélodique. On peut aussi choisir le matériau qui compose chaque timbre pour modifier la richesse fréquentielle du son généré.It is known to size and configure the gong or gongs to target on the one hand a desired frequency of acoustic vibration, and on the other hand to tune at least one of the partials of the hour gong and of the minute gong together. In this case, we speak of tuning the melodic interval. You can also choose the material that makes up each timbre to modify the frequency richness of the sound generated.

A ce titre, on peut citer la demande de brevet EP 3 211 488 A1 , qui décrit un timbre de forme atypique pour un mécanisme de sonnerie d'une montre. Le timbre est relié au moins à une de ses extrémités à un porte-timbre, qui peut être fixé sur une paroi intérieure de la carrure de montre. Le timbre comprend plusieurs encoches réalisées en des points géométriques définis sur une portion de sa longueur. Cela permet d'adapter des fréquences propres de vibration dans une bande audible entre 1 kHz et 5 kHz, pour rendre harmonieux le son généré. Cependant, l'adaptation des fréquences propres par la réalisation de ces encoches est irréversible. Cela constitue un inconvénient, si on veut adapter d'autres fréquences de vibration du timbre.In this regard, we can cite the patent application EP 3 211 488 A1 , which describes a gong with an atypical shape for a watch striking mechanism. The gong is connected at least at one of its ends to a gong holder, which can be fixed to an inner wall of the watch middle. The stamp includes several notches made at defined geometric points over a portion of its length. This makes it possible to adapt natural vibration frequencies in an audible band between 1 kHz and 5 kHz, to make the sound generated harmonious. However, the adaptation of the natural frequencies by the realization of these notches is irreversible. This constitutes a drawback, if it is desired to adapt other frequencies of vibration of the timbre.

La demande de brevet EP 2 808 745 A1 décrit un mécanisme de sonnerie d'une montre, qui comprend des moyens de sélection d'un mode vibratoire d'un timbre. Pour ce faire, les moyens de sélection comprennent un élément sélecteur disposé en contact sur une partie du timbre et maintenu sur un nœud de vibration d'un mode vibratoire du timbre à sélectionner. Cela permet de bloquer d'autres modes vibratoires. Cet élément sélecteur peut être déplacé sur une portion du timbre par un moyen de déplacement, ce qui permet de sélectionner un mode vibratoire de manière non irréversible. Cependant aucune possibilité d'optimiser la configuration du timbre n'est décrite pour pouvoir adapter une fréquence de vibration de manière non irréversible afin d'assurer un accordage fin avec l'habillage de la montre, ce qui constitue un inconvénient.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. To do this, the selection means comprise a selector element arranged in contact on a part of the gong and maintained on a vibration node of a vibrational mode of the timbre to be selected. This makes it possible to block other vibrational modes. This selector element can be moved over a portion of the stamp by a moving means, which makes it possible to select a vibratory mode in a non-irreversible manner. However, no possibility of optimizing the configuration of the gong is described in order to be able to adapt a vibration frequency in a non-irreversible manner in order to ensure fine tuning with the casing of the watch, which constitutes a drawback.

La demande de brevet CH 707 078 A1 décrit un timbre pour un mécanisme de sonnerie. Un dispositif de réglage de fréquence de vibration du timbre est prévu. Un élément sous forme de masselotte est monté sur le timbre pour agir sur une partie du timbre pour effectuer une contrainte mécanique locale. Cela permet de régler une fréquence de vibration du timbre frappé. Cependant en agissant avec une telle masselotte montée sur une portion du timbre, cela ne permet pas de régler précisément une fréquence propre de vibration, ce qui constitue un inconvénient.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. However, by acting with such a weight mounted on a portion of the gong, this does not make it possible to precisely adjust a natural frequency of vibration, which constitutes a disadvantage.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a donc pour but de pallier les inconvénients de l'état de la technique susmentionné en fournissant un dispositif de réglage de fréquence de vibration d'au moins un timbre d'un mécanisme de sonnerie d'une pièce d'horlogerie, qui permette de régler très finement la fréquence de vibration d'un timbre de manière non irréversible.The object of the invention is therefore to overcome the drawbacks of the aforementioned state of the art by providing a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, which makes it possible to very finely adjust the vibration frequency of a stamp in a non-irreversible way.

A cet effet, l'invention concerne un dispositif de réglage de fréquence de vibration d'au moins un timbre d'un mécanisme de sonnerie d'une pièce d'horlogerie, qui comprend les caractéristiques définies dans les revendications indépendantes 1 à 2.To this end, the invention relates to a device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, which comprises the characteristics defined in independent claims 1 to 2.

Des formes d'exécution particulières du dispositif de réglage de fréquence de vibration d'au moins un timbre sont définies dans les revendications dépendantes 3 à 14.Particular embodiments of the device for adjusting the frequency of vibration of at least one gong are defined in dependent claims 3 to 14.

Selon l'invention, par un agencement mécanique, il est effectué une contrainte mécanique pour déformer élastiquement le timbre par rapport à sa configuration initiale afin de régler sa fréquence de vibration. On peut effectuer une traction ou une compression ou une flexion du timbre au moins localement sur une portion de sa longueur. Il peut aussi être effectué une torsion du timbre ou d'au moins une portion du timbre en partant de son extrémité libre.According to the invention, by a mechanical arrangement, a mechanical stress is applied to elastically deform the gong relative to its initial configuration in order to adjust its vibration frequency. Traction or compression or flexion of the gong can be performed at least locally over a portion of its length. The stamp or at least a portion of the stamp can also be twisted starting from its free end.

L'extrémité libre du timbre est formée avec au moins un plat sur une surface ou une forme non circulaire de telle manière à être insérée ou prise dans une forme complémentaire d'un élément de l'agencement mécanique pour son entraînement en torsion.The free end of the stamp is formed with at least one flat on a non-circular surface or shape so as to be inserted or taken into a shape complementary to an element of the mechanical arrangement for its torsion driving.

Un premier élément de l'agencement mécanique peut être en prise avec une partie du timbre pour lui imposer une contrainte mécanique afin de régler la fréquence de vibration du timbre.A first element of the mechanical arrangement can be engaged with a part of the gong to impose a mechanical stress on it in order to adjust the frequency of vibration of the gong.

Il pourrait être envisagé d'effectuer une contrainte mécanique du timbre par l'intermédiaire d'éléments magnétiques.It could be envisaged to effect a mechanical stress on the stamp by means of magnetic elements.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF FIGURES

Les buts, avantages et caractéristiques du dispositif de réglage de fréquence de vibration d'au moins un timbre d'un mécanisme de sonnerie d'une pièce d'horlogerie apparaîtront mieux dans la description suivante notamment en regard des dessins sur lesquels :

  • la figure 1 représente une vue tridimensionnelle simplifiée d'une première forme d'exécution du dispositif de réglage de fréquence d'au moins un timbre d'un mécanisme de sonnerie avec un agencement de contrainte mécanique du timbre selon l'invention,
  • les figures 2a et 2b représentent une vue tridimensionnelle simplifiée et une vue en longueur partiellement en coupe d'une seconde forme d'exécution du dispositif de réglage de fréquence d'au moins un timbre d'un mécanisme de sonnerie avec un agencement de contrainte mécanique du timbre selon l'invention, et
  • la figure 3 représente une vue de dessus simplifiée d'une troisième forme d'exécution du dispositif de réglage de fréquence d'au moins un timbre d'un mécanisme de sonnerie avec un agencement de contrainte mécanique du timbre selon l'invention.
The aims, advantages and characteristics of the device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece will appear better in the following description, in particular with regard to the drawings in which:
  • the figure 1 represents a simplified three-dimensional view of a first embodiment of the device for adjusting the frequency of at least one gong of a striking mechanism with an arrangement for mechanical constraint of the gong according to the invention,
  • the figures 2a and 2b show a simplified three-dimensional view and a partially sectional length view of a second embodiment of the device for adjusting the frequency of at least one gong of a striking mechanism with an arrangement for mechanical straining of the gong according to invention, and
  • the picture 3 shows a simplified top view of a third embodiment of the device for adjusting the frequency of at least one gong of a striking mechanism with an arrangement for mechanical constraint of the gong according to the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Dans la description suivante, toutes les parties bien connues d'un mécanisme de sonnerie d'une pièce d'horlogerie, telle qu'une montre, avec un dispositif de réglage de fréquence d'au moins un timbre ne seront décrites que sommairement. Il sera exclusivement fait référence au dispositif de réglage de fréquence d'au moins un timbre sans mentionner en détail le ou les marteaux et leur agencement dans le mécanisme pour pouvoir frapper chaque timbre.In the following description, all the well-known parts of a striking mechanism of a timepiece, such as a watch, with a device for adjusting the frequency of at least one gong will only be briefly described. Reference will be made exclusively to the device for adjusting the frequency of at least one gong without mentioning in detail the hammer or hammers and their arrangement in the mechanism to be able to strike each gong.

La figure 1 représente une première forme d'exécution du dispositif 1 de réglage de fréquence d'au moins un timbre 3 d'un mécanisme de sonnerie d'une pièce d'horlogerie, telle qu'une montre. Le dispositif 1 de réglage peut être une partie du mécanisme de sonnerie.The figure 1 represents a first embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch. The adjustment device 1 can be part of the striking mechanism.

Le mécanisme de sonnerie comprend notamment au moins un timbre 3 monté ou fixé par une première extrémité à un porte-timbre 2, et au moins un marteau non représenté, qui peut être rotatif ou à mouvement linéaire pour venir frapper le timbre dans des périodes déterminées pour produire un son. Généralement le marteau est disposé pour venir frapper le timbre à proximité de sa fixation au porte-timbre 2. Le porte-timbre 2 est par exemple fixé sur une paroi intérieure de la carrure de montre ou également sur une platine de montre, qui supporte également le mouvement horloger.The striking mechanism comprises in particular at least one gong 3 mounted or fixed by a first end to a gong holder 2, and at least one hammer, not shown, which can be rotary or linear in order to strike the gong in determined periods. to produce sound. Generally the hammer is arranged to strike the stamp close to its attachment to the stamp holder 2. The stamp holder 2 is for example fixed to an inner wall of the watch middle or also to a watch plate, which also supports the watch movement.

Le dispositif 1 de réglage comprend un agencement mécanique actionnable à l'intérieur d'un boîtier non représenté de la montre ou depuis l'extérieur du boîtier de la montre. Dans le cas d'un actionnement depuis l'extérieur du boîtier de montre, l'agencement mécanique peut comprendre une couronne 8 liée à une tige 7 de remontoir passant à travers la carrure du boîtier. Par exemple en tirant ou en pressant sur la couronne par un doigt d'une main d'un utilisateur, il peut être envisagé d'actionner l'agencement mécanique pour régler la fréquence de vibration du timbre.The adjustment device 1 comprises a mechanical arrangement operable inside a case of the watch, not shown, or from outside the case of the watch. In the case of actuation from outside the watch case, the mechanical arrangement may comprise a crown 8 linked to a winding stem 7 passing through the middle of the case. For example, by pulling or pressing on the crown with a finger of a user's hand, it may be envisaged to actuate the mechanical arrangement to adjust the vibration frequency of the gong.

L'agencement mécanique comprend encore au moins un premier élément 4 destiné à agir sur une partie du timbre pour effectuer une contrainte mécanique du timbre pour le réglage d'une fréquence propre de vibration du timbre frappé. Ce premier élément 4 peut être un anneau venant sur le timbre, qui peut être sous la forme d'une tige cylindrique. Cet anneau peut être fixé sur une position de la longueur du timbre au moyen par exemple d'une vis 4a ou par un autre moyen de fixation. Cependant, le premier élément 4 peut être aussi sous la forme d'une pince fixée sur une position du timbre. Selon l'invention, le premier élément 4 venant en prise d'une partie du timbre, est positionné à proximité d'une seconde extrémité libre du timbre 3.The mechanical arrangement further comprises at least a first element 4 intended to act on a part of the gong to effect a mechanical stress on the gong for the adjustment of a natural frequency of vibration of the struck gong. This first element 4 can be a ring coming on the gong, which can be in the form of a cylindrical rod. This ring can be fixed on a position of the length of the gong by means for example of a screw 4a or by another fixing means. However, the first element 4 can also be in the form of a clip fixed to a position of the gong. According to the invention, the first element 4 coming into engagement with a part of the gong, is positioned close to a second free end of the gong 3.

Dans cette première forme d'exécution du dispositif 1 de réglage de fréquence du timbre 3, l'agencement mécanique comprend encore une roue 6, qui est une roue à dents 6a et est montée sur la tige de remontoir 7, et un organe d'actionnement 5 sous la forme d'une crémaillère à dents 5a pour engrener avec la roue à dents 6a. Cet organe d'actionnement rectiligne 5 peut être fixé directement au premier élément 4 ou venir de matière avec le premier élément 4 et est disposé parallèle au timbre 3, qui est dans cette forme d'exécution rectiligne. Bien entendu, le timbre 3 peut prendre d'autres formes que celle présentée en figure 1.In this first embodiment of the device 1 for adjusting the frequency of the gong 3, the mechanical arrangement further comprises a wheel 6, which is a toothed wheel 6a and is mounted on the winding stem 7, and a actuation 5 in the form of a toothed rack 5a for meshing with the toothed wheel 6a. This rectilinear actuation member 5 can be fixed directly to the first element 4 or be integral with the first element 4 and is arranged parallel to the gong 3, which in this form of rectilinear execution. Of course, the stamp 3 can take other forms than that presented in figure 1 .

En agissant sur la couronne 8 pour la faire tourner dans une première direction ou une seconde direction opposée à la première direction, la roue 6 est entraînée en rotation r par la tige 7. Cette roue 6 engrène avec la crémaillère 5 afin d'imposer une contrainte mécanique au timbre par l'intermédiaire du premier élément 4. Il peut être effectué une traction ou une compression dans une direction d montrée à la figure 1 du mouvement du premier élément 4 fixé sur le timbre 3. Ainsi, on peut de manière non irréversible régler la fréquence de vibration du timbre une fois qu'il est frappé par le marteau dans une phase de sonnerie.By acting on crown 8 to make it rotate in a first direction or a second direction opposite to the first direction, wheel 6 is driven in rotation r by rod 7. This wheel 6 meshes with rack 5 in order to impose a mechanical constraint to the timbre via the first element 4. A traction or a compression can be carried out in a direction d shown in figure 1 of the movement of the first element 4 fixed to the gong 3. Thus, it is possible in a non-irreversible manner to adjust the vibration frequency of the gong once it is struck by the hammer in a ringing phase.

Une fois que l'on a réglé la fréquence de vibration du timbre 3 par l'agencement mécanique, il peut être prévu encore un élément de blocage 9 pour bloquer l'action de l'agencement mécanique. Cet élément de blocage 9 peut être un élément sous forme de cliquet monté rotatif et venant se placer entre deux dents de la roue 6 à dents 6a pour l'empêcher de tourner. Il peut être prévu un blocage dans les deux sens de rotation ou au moins dans un sens de rotation. L'élément de blocage 9 est placé en position de blocage notamment au terme du réglage de fréquence de vibration du timbre.Once the vibration frequency of gong 3 has been adjusted by the mechanical arrangement, a further blocking element 9 may be provided to block the action of the mechanical arrangement. This blocking element 9 can be an element in the form of a rotatably mounted ratchet which is placed between two teeth of the wheel 6 with teeth 6a to prevent it from rotating. It can be provided a blocking in both directions of rotation or at least in one direction of rotation. The blocking element 9 is placed in the blocking position in particular at the end of the gong vibration frequency adjustment.

Il est à noter qu'il peut être prévu un étage démultiplicateur entre la roue 6 et la crémaillère 5 pour faciliter la traction ou la compression du timbre. De plus, il peut aussi être envisagé que la roue 6 à dents 6a agisse directement sur un cran du premier élément 4 sans le besoin de l'organe d'actionnement 5.It should be noted that a reduction stage may be provided between wheel 6 and rack 5 to facilitate the traction or compression of the gong. In addition, it can also be envisaged that the wheel 6 with teeth 6a acts directly on a notch of the first element 4 without the need for the actuating member 5.

Les figures 2a et 2b représentent une seconde forme d'exécution du dispositif 1 de réglage de fréquence d'au moins un timbre 3 d'un mécanisme de sonnerie d'une pièce d'horlogerie, telle qu'une montre.The figures 2a and 2b represent a second embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch.

Comme pour la première forme d'exécution, le mécanisme de sonnerie comprend au moins un timbre 3 monté ou fixé par une première extrémité à un porte-timbre 2, et au moins un marteau non représenté. Le marteau peut être monté rotatif ou à mouvement linéaire pour venir frapper le timbre 3 dans des périodes déterminées pour produire un son. Généralement le marteau est disposé pour venir frapper le timbre à proximité de sa fixation au porte-timbre 2. Le porte-timbre peut être fixé sur une paroi intérieure de la carrure de montre ou également sur une platine de montre, qui supporte également le mouvement horloger.As for the first embodiment, the striking mechanism comprises at least one gong 3 mounted or fixed by a first end to a gong holder 2, and at least one hammer, not shown. The hammer can be mounted in rotation or in linear motion to strike the gong 3 in determined periods to produce a sound. Generally, the hammer is arranged to strike the gong close to its attachment to the gong holder 2. The gong holder can be fixed to an interior wall of the watch middle or also to a watch plate, which also supports the movement watchmaker.

Le dispositif 1 de réglage comprend un agencement mécanique actionnable à l'intérieur d'un boîtier non représenté de la montre ou depuis l'extérieur du boîtier de la montre. Comme auparavant dans le cas d'un actionnement depuis l'extérieur du boîtier de montre, l'agencement mécanique peut comprendre une couronne 8 liée à une tige 7, par exemple une tige 7 de remontoir passant à travers la carrure du boîtier. En tirant ou en pressant sur la couronne 8 par un doigt d'une main d'un utilisateur, il peut être envisagé d'actionner l'agencement mécanique pour régler la fréquence de vibration du timbre.The adjustment device 1 comprises a mechanical arrangement operable inside a case of the watch, not shown, or from outside the case of the watch. As before in the case of actuation from outside the watch case, the mechanical arrangement may comprise a crown 8 linked to a stem 7, for example a winding stem 7 passing through the middle of the case. By pulling or pressing on the crown 8 with a finger of a user's hand, it can be envisaged to actuate the mechanical arrangement to adjust the vibration frequency of the gong.

L'agencement mécanique comprend au moins un premier élément 4 destiné à agir sur une partie du timbre pour effectuer une contrainte mécanique du timbre pour le réglage d'une fréquence propre de vibration du timbre frappé. La contrainte mécanique dans cette seconde forme d'exécution est une torsion d'au moins une partie du timbre 3.The mechanical arrangement comprises at least a first element 4 intended to act on a part of the gong to effect a mechanical constraint of the gong for the adjustment of a natural frequency of vibration of the struck gong. The mechanical stress in this second embodiment is a twist of at least part of gong 3.

Ce premier élément 4 peut être un embout 4 de forme par exemple cylindrique ayant à une première extrémité une ouverture 4' non circulaire de forme complémentaire à une extrusion 3' réalisée à une seconde extrémité du timbre 3. La dimension intérieure de l'ouverture 4' de l'embout est légèrement supérieure à la dimension extérieure de l'extrusion 3' du timbre 3 pour permettre sans difficulté d'insérer cette extrusion 3' dans l'ouverture 4' de l'embout 4. De préférence l'extrusion 3' est d'une forme parallélépipède rectangle tout comme l'ouverture 4'. Cependant toute autre forme non circulaire peut être adoptée pour l'extrusion 3' et l'ouverture 4'.This first element 4 can be a tip 4 of cylindrical shape, for example, having at a first end a non-circular opening 4′ of a shape complementary to an extrusion 3′ made at a second end of the gong 3. The internal dimension of the opening 4 'of the tip is slightly greater than the outer dimension of the extrusion 3' of the stamp 3 to allow without difficulty to insert this extrusion 3' into the opening 4' of the tip 4. Preferably the extrusion 3 'is of a rectangular parallelepiped shape just like the opening 4'. However, any other non-circular shape can be adopted for the extrusion 3' and the opening 4'.

L'embout cylindrique 4 peut être relié à une seconde extrémité opposée à la première extrémité à la tige 7 de remontoir, qui est terminée à l'extérieur du boîtier de montre par la couronne 8 d'actionnement manuel. Selon cette seconde forme d'exécution, l'axe de l'embout cylindrique 4 est identique à l'axe de la tige 7. Le timbre 3 est présenté sous forme rectiligne ou de toute autre forme, et également disposé selon l'axe de l'embout 4 et de la tige 7.The cylindrical endpiece 4 can be connected at a second end opposite the first end to the winding stem 7, which ends outside the watch case by the crown 8 for manual actuation. According to this second embodiment, the axis of the cylindrical end piece 4 is identical to the axis of the stem 7. The gong 3 is presented in rectilinear form or any other form, and also arranged along the axis of end piece 4 and rod 7.

L'agencement mécanique comprend encore une roue 6 fixée sur la tige 7 pour engrener avec une autre roue 11 d'axe perpendiculaire à l'axe de la roue 6. Un élément de blocage 9 est aussi prévu pour bloquer l'action de l'agencement mécanique. L'élément de blocage 9 peut être un élément sous forme de cliquet ou de cran afin de venir se placer entre deux dents de l'autre roue 11 pour l'empêcher de tourner, ainsi que la roue 6. L'élément de blocage 9 est placé en position de blocage notamment au terme du réglage de fréquence de vibration du timbre.The mechanical arrangement also comprises a wheel 6 fixed on the rod 7 to mesh with another wheel 11 whose axis is perpendicular to the axis of the wheel 6. A blocking element 9 is also provided to block the action of the mechanical arrangement. The blocking element 9 can be an element in the form of a pawl or notch in order to be placed between two teeth of the other wheel 11 to prevent it from rotating, as well as the wheel 6. The blocking element 9 is placed in the blocking position in particular after the adjustment of the vibration frequency of the gong.

La figure 3 représente une troisième forme d'exécution du dispositif 1 de réglage de fréquence d'au moins un timbre 3 d'un mécanisme de sonnerie d'une pièce d'horlogerie, telle qu'une montre. Cette troisième forme d'exécution est une variante du principe décrit en relation aux figures 2a et 2b.The picture 3 represents a third embodiment of the device 1 for adjusting the frequency of at least one gong 3 of a striking mechanism of a timepiece, such as a watch. This third embodiment is a variant of the principle described in relation to the figures 2a and 2b .

Dans cette troisième forme d'exécution du dispositif 1 de réglage de fréquence du timbre 3, l'agencement mécanique comprend encore au moins un premier élément 4 destiné à agir sur une partie du timbre pour effectuer une contrainte mécanique du timbre pour le réglage d'une fréquence propre de vibration du timbre frappé. La contrainte mécanique dans cette seconde forme d'exécution est une torsion d'au moins une partie du timbre 3 notamment de la seconde extrémité du timbre 3. Cette seconde extrémité du timbre est de forme non circulaire avec au moins un plat sur une surface. Il peut aussi être prévu une extrusion 3' à la seconde extrémité du timbre 3 de forme complémentaire à une ouverture 4' du premier élément 4. L'extrusion 3' est insérée dans l'ouverture 4' de l'élément 4, qui peut être une roue dentée de torsion.In this third embodiment of the device 1 for adjusting the frequency of the gong 3, the mechanical arrangement also comprises at least a first element 4 intended to act on a part of the gong to perform a mechanical stress on the gong for the adjustment of a natural frequency of vibration of the stamp struck. The mechanical stress in this second embodiment is a torsion of at least a part of the gong 3 in particular of the second end of the gong 3. This second end of the gong is of non-circular shape with at least one flat on a surface. There can also be provided an extrusion 3' at the second end of the gong 3 of complementary shape to an opening 4' of the first element 4. The extrusion 3' is inserted into the opening 4' of the element 4, which can be a torsion cogwheel.

La roue dentée de torsion 4 est entraînée en rotation par une roue 6 à dents engrenant avec la roue dentée de torsion. Cette roue 6 à dents est fixée sur la tige de remontoir 7, qui est terminée vers l'extérieur du boîtier de montre par une couronne 8 d'actionnement manuel. L'axe de la roue 6 à dents est le même que l'axe de la tige 7. Un élément de blocage 9 est encore prévu pour venir bloquer la roue 6 à dents ou éventuellement la roue dentée de torsion une fois que le réglage de fréquence est terminé. Bien entendu, il peut aussi être envisagé de placer un étage démultiplicateur entre la roue 6 à dents et la roue dentée de torsion 4 pour faciliter le réglage de fréquence avec la torsion du timbre 3.The torsion toothed wheel 4 is driven in rotation by a toothed wheel 6 meshing with the torsion toothed wheel. This toothed wheel 6 is fixed on the winding stem 7, which ends towards the outside of the watch case by a crown 8 for manual actuation. The axis of the toothed wheel 6 is the same as the axis of the rod 7. A locking element 9 is further provided to block the toothed wheel 6 or possibly the torsion toothed wheel once the adjustment of frequency is over. Of course, it can also be envisaged to place a reduction stage between the toothed wheel 6 and the torsion toothed wheel 4 to facilitate the frequency adjustment with the torsion of the gong 3.

Selon les formes d'exécution décrites ci-dessus, il peut être prévu le réglage de fréquence de deux timbres ou plus du mécanisme de sonnerie. La forme du timbre peut être choisie par exemple de section transversale circulaire ou rectangulaire. L'épaisseur du timbre peut être inférieure ou égale à 1 mm et la longueur peut être entre 1 cm et 10 cm. Le matériau du timbre peut être choisi en acier ou en alliage cuivreux ou en or ou en verre métallique, c'est-à-dire en métal ou alliage métallique amorphe. Ce verre métallique peut être par exemple à base de zirconium, d'or, de platine ou d'or avec du palladium, du platine et de l'argent ou de tout autre métal susceptible de solidifier sous forme amorphe.According to the embodiments described above, provision may be made for the frequency adjustment of two or more gongs of the striking mechanism. The shape of the stamp can be chosen, for example of circular or rectangular cross-section. The thickness of the stamp can be less than or equal to 1 mm and the length can be between 1 cm and 10 cm. The material of the stamp can be chosen from steel or a copper alloy or from gold or metallic glass, that is to say an amorphous metal or metallic alloy. This metallic glass may for example be based on zirconium, gold, platinum or gold with palladium, platinum and silver or any other metal capable of solidifying in amorphous form.

A partir de la description qui vient d'être faite, plusieurs variantes du dispositif de réglage de fréquence de vibration d'au moins un timbre d'un mécanisme de sonnerie d'une pièce d'horlogerie, peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. La contrainte mécanique du timbre peut être effectuée également par l'intermédiaire d'éléments magnétiques disposés sur le premier élément de l'agencement mécanique et sur une partie du timbre. Il est possible d'effectuer une traction ou une compression et une torsion du timbre par l'agencement mécanique pour régler sa fréquence de vibration.From the description which has just been made, several variants of the device for adjusting the frequency of vibration of at least one gong of a striking mechanism of a timepiece, can be designed by the person skilled in the art. business without departing from the scope of the invention defined by the claims. The mechanical constraint of the gong can also be carried out by means of magnetic elements arranged on the first element of the mechanical arrangement and on a part of the gong. It is possible to pull or compress and twist the gong by the mechanical arrangement to adjust its frequency of vibration.

Claims (14)

  1. Device (1) for adjusting the vibration frequency of at least one gong (3) of a timepiece striking mechanism, the striking mechanism including at least one gong (3) mounted by a first end on a gong-carrier (2), and at least one hammer for striking the gong (3) at predetermined instants,
    the device comprising a mechanical arrangement with a first element (4) intended to act on one part of the gong to produce mechanical stress on the gong so as to adjust a natural vibration frequency of the struck gong, characterised in that said first element (4) is a contact element meshed with a second end of the gong.
  2. Device (1) for adjusting the vibration frequency of at least one gong (3) of a timepiece striking mechanism, the striking mechanism including at least one gong (3) mounted by a first end on a gong-carrier (2), and at least one hammer for striking the gong (3) at predetermined instants,
    characterised in that the device comprises a mechanical arrangement arranged to twist the gong with the first element (4) meshed with a complementary-shaped part of the gong so as to adjust a natural vibration frequency of the struck gong.
  3. Device (1) according to claim 2, characterised in that said mechanical arrangement is arranged to pull or compress the gong and twist the gong with said first element (4).
  4. Device (1) according to claim 1, characterised in that the mechanical arrangement is arranged to pull or compress the gong by means of the first element (4) fixed on one part of the gong in order to adjust the gong vibration frequency.
  5. Device (1) according to claim 1, characterised in that the second end of the gong includes an end portion (3') of complementary shape to a housing (4') of the first element (4) which meshes with the second end of the gong (3) in order to twist the gong by rotating the first element (4) in the mechanical arrangement.
  6. Device (1) according to claim 5, characterised in that the first element (4) is an end piece having, at a first end, an opening (4') of complementary shape to the end portion (3') of the gong (3), which is intended to be inserted into the opening (4') of the end piece, in that a second end of the end piece is connected to a stem (7) terminating in a crown (8) capable of being positioned outside the timepiece case to be manually operated to twist the gong in order to adjust the gong vibration frequency.
  7. Device (1) according to claim 6, characterised in that a toothed wheel (6) is arranged on the stem (7) to mesh with another toothed wheel (11) whose axis of rotation is perpendicular to the axis of rotation of the stem (7) and of the toothed wheel (6).
  8. Device (1) according to claim 7, characterised in that the mechanical arrangement includes a blocking element (9) for blocking the other toothed wheel (11) at the end of adjustment of the gong frequency.
  9. Device (1) according to claim 5, characterised in that the first element (4) is a toothed torsion wheel, which includes an axial opening of complementary shape to the end portion (3') of the gong (3), which is intended to be inserted into the opening (4') of the toothed torsion wheel in order to twist the gong during rotation of the toothed torsion wheel.
  10. Device (1) according to claim 9, characterised in that the toothed torsion wheel is arranged to be driven in rotation by a toothed wheel (6) meshing with the toothed torsion wheel, and in that the toothed wheel (6) is attached to a stem (7), which terminates outside the watch case in a manually actuated crown (8).
  11. Device (1) according to claim 10, characterised in that the mechanical arrangement includes a blocking element (9) for blocking the toothed wheel (6) or the toothed torsion wheel at the end of adjustment of the gong frequency.
  12. Device (1) according to claim 4, characterised in that the first element (4) is arranged to be placed on one part of the gong, in that the first element is a ring (4) or a clamp fixed in one position on the gong, preferably at a second end of the gong, and in that the first element is connected to a rectilinear actuating member (5), which is driven by a wheel (6).
  13. Device (1) according to claim 12, characterised in that the first element is a ring (4) attached in a position on the gong by a screw (4a), in that the wheel (6) is a wheel with teeth (6a) meshing with a rack with teeth (5a) of the actuating member in order to pull or compress the gong (3) to adjust the gong vibration frequency.
  14. Device (1) according to claim 13, characterised in that the mechanical arrangement also includes a crown (8) connected to a stem (7) passing through a middle part of the timepiece case, the stem being axially connected to the wheel (6), the crown actuating, in an adjustment position, the adjustment of the gong vibration frequency.
EP18159935.8A 2018-03-05 2018-03-05 Device for adjusting the vibration frequency of a bell of a chiming mechanism Active EP3537228B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH00263/18A CH714716A2 (en) 2018-03-05 2018-03-05 Vibration frequency adjusting device of a stamp of a striking mechanism.
EP18159935.8A EP3537228B1 (en) 2018-03-05 2018-03-05 Device for adjusting the vibration frequency of a bell of a chiming mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18159935.8A EP3537228B1 (en) 2018-03-05 2018-03-05 Device for adjusting the vibration frequency of a bell of a chiming mechanism

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EP3537228A1 EP3537228A1 (en) 2019-09-11
EP3537228B1 true EP3537228B1 (en) 2022-02-16

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EP18159935.8A Active EP3537228B1 (en) 2018-03-05 2018-03-05 Device for adjusting the vibration frequency of a bell of a chiming mechanism

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Publication number Priority date Publication date Assignee Title
WO2023156862A1 (en) * 2022-02-16 2023-08-24 Politecnico Di Milano Gong for a clock strike device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707078A1 (en) * 2012-10-15 2014-04-15 Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie Stamp for striking work of a timepiece.
EP2808745B1 (en) 2013-05-28 2019-07-03 Montres Breguet SA Striking mechanism provided with means for selecting chime vibration mode
CH712161A2 (en) 2016-02-26 2017-08-31 Montres Breguet Sa Stamp, ring mechanism watch comprising the same and method of making the stamp.

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CH714716A2 (en) 2019-09-13

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