EP2503417A1 - Removable acoustic membrane for a musical or chiming watch and watch including same - Google Patents

Removable acoustic membrane for a musical or chiming watch and watch including same Download PDF

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Publication number
EP2503417A1
EP2503417A1 EP11159275A EP11159275A EP2503417A1 EP 2503417 A1 EP2503417 A1 EP 2503417A1 EP 11159275 A EP11159275 A EP 11159275A EP 11159275 A EP11159275 A EP 11159275A EP 2503417 A1 EP2503417 A1 EP 2503417A1
Authority
EP
European Patent Office
Prior art keywords
membrane
watch
retaining member
watch case
housing
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.)
Granted
Application number
EP11159275A
Other languages
German (de)
French (fr)
Other versions
EP2503417B1 (en
Inventor
Fabio Sciascia
Jan Pittet
Beat Gilomen
Dave Mangin
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
Original Assignee
Montres Breguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP11159275.4A priority Critical patent/EP2503417B1/en
Priority to CH00485/11A priority patent/CH704673A2/en
Priority to US13/424,650 priority patent/US8770833B2/en
Priority to CN201210075493.6A priority patent/CN102692867B/en
Priority to JP2012065121A priority patent/JP5616388B2/en
Publication of EP2503417A1 publication Critical patent/EP2503417A1/en
Priority to HK13103544.0A priority patent/HK1176692A1/en
Application granted granted Critical
Publication of EP2503417B1 publication Critical patent/EP2503417B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49579—Watch or clock making

Definitions

  • the invention relates to a removable acoustic radiation membrane for a musical watch, or a bell watch.
  • the invention further relates to a watch case with a middle and a bottom between which is maintained the removable acoustic radiation membrane.
  • the invention also relates to a watch, which comprises a removable acoustic radiation membrane.
  • the watch comprises a watch case consisting essentially of a middle and a bottom fixed and securely attached to the middle part.
  • An ice is disposed on a side opposite the bottom to seal said box.
  • a watch movement is maintained inside the watch case and provided with a striking mechanism, such as a musical module. This musical module is likely to be activated in specific periods to produce mainly music.
  • the removable acoustic radiation membrane is connected to the box to radiate the sound produced by the striking mechanism to the outside of the box.
  • the acoustic membrane is held fixed between the middle and the bottom of the watch case, it may be provided a number of lateral openings at the periphery of the bottom of the box for the transmission of sound towards the outside of the membrane. vibration.
  • the acoustic membrane must be made generally of a metal material with a small thickness to ensure good acoustic transmission of sound, or music generated for example by means of a module musical watch.
  • this membrane is not able to withstand high pressures or depressions depending on the environmental conditions. These environmental conditions concern the physical conditions of the place where the watch is placed, in which the acoustic membrane is placed.
  • a strong pressure on the membrane can thus occur in the case where the watch is used for a deep dive. Under these conditions, the thin acoustic membrane deforms and comes into contact with parts of the watch movement. This can damage both the membrane and parts of the watch movement, which is a disadvantage.
  • a waterproof wristwatch which comprises an acoustic membrane and means for limiting the flexion of said membrane towards the inside of the watch.
  • the circular-shaped membrane is attached as a watchcase bottom by its peripheral edge to the middle part.
  • a second bottom of the box is attached as an outer part of the watch on the periphery of the membrane.
  • This second bottom includes lateral openings for the passage of sound. Stop means are provided to limit the bending of the membrane towards the inside of the watch.
  • a support member is fixed in a central position on the membrane, and the second bottom comprises in its center a stop member for the support member of the membrane.
  • the support member passes through an opening in the bottom at the stop member to be fixed to the center of the membrane. During a large external pressure, the support member of the membrane abuts against the abutment member of the bottom to prevent the membrane from bending too much.
  • a disadvantage of the stop means for limiting the bending of the membrane towards the inside of the patent watch CH 375 664 is that the support member is fixed to the membrane by passing through an opening from the second bottom of the watch case. Under these conditions, dirt can be housed at the passage of the support member through the bottom of the box, which can greatly dampen the sound of the acoustic transmission of the membrane. This can also disturb the wearer of the watch and possibly cause him itching or eczema, which is another disadvantage.
  • the support member can also be handled from the outside and the membrane is not removable, which is still other disadvantages.
  • the invention therefore aims to overcome the drawbacks of the state of the art mentioned above by providing a removable acoustic radiation membrane for a musical watch or a ring watch, having a small thickness and means that can cooperate with a box of shows, in order to avoid any significant deformation following a strong overpressure or depression once housed in the watch case.
  • the invention relates to a removable acoustic radiation membrane comprising the characteristics defined in the independent claim 1.
  • the invention also relates to a watch case, which comprises the characteristics of the independent claim 12.
  • the invention also relates to a watch provided with a removable acoustic radiation membrane comprising the characteristics defined in the independent claim 16.
  • An advantage of the invention lies in the fact that in particular the base portion of the membrane is held by a retaining member in a housing of an inner abutment member of the bottom. This allows the membrane, which is flexible and tight, not to deform too much and not to come into contact with parts of the movement during an overpressure depending on environmental conditions. Principally as the bottom comprises lateral openings for the sound radiation of the membrane to the outside, the membrane is kept away from the movement by the cooperation between the retaining member and the abutment member especially in the case of a use of the watch for a dive. In normal operation, the membrane is free to vibrate since the retaining member is disposed in the housing of the stop member with a certain clearance.
  • the stop member and the retaining member is made of a metallic material, no substantial damping of the sound is noted, because no seal is provided, but only a metal-metal connection between the two bodies. No dirt can accumulate in the housing of the stop member, since this stop member is made inside the watch case. In addition the retaining member can not be manipulated once the bottom is fixed on the middle part of the watch case.
  • the invention also relates to a method of mounting a removable membrane in a watch case according to the features defined in the independent claim 20.
  • the figure 1 represents a three-dimensional view from below of the removable acoustic radiation membrane 1, in particular for a musical watch, or a striking watch.
  • the removable membrane may be formed in the form of a bowl with a base portion 4, as the bottom of the bowl, and a peripheral edge 5 for mounting in a watch case as explained herein. -after reference to figures 2 and 3 .
  • the membrane 1 may be a circular membrane for example with a diameter of about 40 mm at the edge and a diameter of about 31 mm in its base portion 4 by way of non-limiting example. However, this membrane may also be of a different shape than circular and of different size.
  • the peripheral edge 5 of the removable membrane 1 can be fixed between the middle and the bottom of the watch case.
  • the peripheral edge further comprises a cavity 6 for receiving an indexing pin of the watch case to position the membrane 1 in the watch case.
  • the interior of the watch is waterproof through the removable membrane fixed between the middle and the bottom of the box, but by against one or more side openings may be provided in the bottom of the box for sound radiation to the outside of the vibrating membrane.
  • the removable membrane 1 comprises a retaining member 7, which is preferably arranged in a central part of the membrane, for example in the center of the base portion 4.
  • the retaining member is made of material with the part of base 4, although it can also be provided to screw, hunt or solder the metal retainer on the base portion 4.
  • the removable membrane 1 with the retaining member 7 are made of a metallic material, such as the titanium or a precious metal such as gold, or amorphous metal.
  • This retaining member 7 is provided to cooperate with an internal abutment member of the bottom of the watch case as explained hereinafter with reference to the figures 2 and 3 .
  • this retaining member 7 When this retaining member 7 is placed in a housing of the inner abutment member of the bottom of the box, this limits the bending of the membrane following a high pressure or depression depending on the environmental conditions.
  • the diaphragm arranged in a sealed manner in the watch case is likely to be subjected to high pressure when the watch is used for deep diving.
  • the retaining member 7 preferably takes the general shape of a T, but may also take the general shape of an L.
  • This retaining member therefore consists of a rod attached to the base portion 4 of the membrane , and a tongue attached to the rod parallel to the base portion 4.
  • the tongue is generally rectangular in shape, and is dimensioned so that its width allows insertion of the retaining member in the housing of the inner stop member from the bottom of the box.
  • the length of the tongue has a dimension adapted to retain the tongue in the housing following a mounting bayonet type in the housing of the bottom of the watch case.
  • the thickness of the membrane must be generally low, which requires the use of the retaining member 7.
  • the overall thickness of the membrane 1 is 0.3 mm or lower.
  • the membrane can be made with a spatially inhomogeneous thickness in its base portion. To do this, it may comprise at least a first region 2 of elliptical shape formed or excavated in the material of the membrane. This first elliptical region 2 is formed on a side opposite the side carrying the retaining member 7. The thickness of the membrane in this first elliptical region 2 may be of the order of 0.15 mm.
  • the removable membrane 1 may further comprise a second region 3 of elliptical shape formed in the material of the membrane.
  • the thickness of the membrane in this second region is of the order of 0.2 mm.
  • the two elliptical regions 2 and 3 overlap in part and are of suitable size to maximize the number of eigen modes of vibration of the membrane mainly in the frequency band between 1 kHz and 4 kHz.
  • the shape of ellipse is recommended to be able to have two eigen modes of vibration in comparison with a region of circular form.
  • the figure 2 represents a cross section or diametral section of a bell or musical watch 10.
  • the watch 10 essentially comprises a removable acoustic radiation membrane 1, which is provided with a retaining member 7 to cooperate with an inner stop member 27 of the metal base 15 of the watch case.
  • the membrane is also configured with the two elliptical regions 2 and 3 excavated in the material of its base portion 4 to improve the acoustic performance of one or more notes or music produced by a striking mechanism.
  • This acoustic membrane may be made for example in an amorphous metal, which is a stainless material.
  • the ring or musical watch 10 also comprises a watch movement 20, which is generally mounted on a plate 24.
  • An edge piece 22 is fixed to the plate 24, which defines a watch cage.
  • both the plate 24 and the edge piece 22 are made of a metallic material.
  • the watch movement 20 comprises a striking mechanism, not shown.
  • This striking mechanism may comprise one or more timbres mounted on the same stamp holder integral with the plate 24, and one or more hammers rotatably mounted on the plate to strike each respective patch in specified periods. Such a striking mechanism is provided to signal a programmed alarm or minute repetitions.
  • the striking mechanism may comprise a musical module provided with a keyboard with a set of blades connected to a heel, which is fixed on the plate 24.
  • a note or a succession of musical notes are produced by keyboard blade vibrations.
  • Each blade is normally configured to produce a particular note, but it can be expected to have certain groups of two or more blades for each group to produce the same particular note.
  • the keyboard blades are lifted and released by pins integral with a cylinder or a disc rotating on the plate 24.
  • Each activated blade oscillates mainly at its first natural frequency. Vibrations generated by the activated blades, are transmitted to the dressing parts of the watch, which must allow to radiate acoustically the sound produced by each blade in vibration.
  • the acoustic membrane 1 is cup-shaped, the upper peripheral edge 5 is sealingly mounted by an annular liner 18 on an inner annular flange of the bottom 15 of the box.
  • the diameter of this bowl which may be equivalent to the diameter of the watch crystal 12, may be between 20 and 40 mm.
  • An annular support 21 supports on one side the plate 24 with the edge piece 22 and rests on the upper edge of the acoustic membrane 1. At the time of attachment of the middle metal 14 to the metal base 15 of the watch case, the support 21 and the peripheral edge of the acoustic radiation membrane 1 are clamped between the middle part 14 and the edge of the bottom 15.
  • the membrane may be provided to fix the acoustic membrane 1 by its border 5 in a different way than that presented above. It can be envisaged that the membrane is fixed pointwise at 2, 3, 4 or more points by its border, or that it is fixed elastically or with a single support condition.
  • the bottom 15 is mounted by known means and removably on the middle part 14 with a seal 19.
  • the attachment of the bottom 15 to the middle part can be effected by means of screws as explained hereinafter with reference to FIG. figure 3 .
  • a watch crystal 12 is fixed in particular to the bezel 13 to close the watch case tightly.
  • a dial 23 is held at the edge on the middle part and disposed beneath the watch crystal 12.
  • hour indication hands 25 are provided on the dial, which also bears hourly indexes in the periphery.
  • the central portion 4 of the acoustic membrane is not in contact with the support 21 and the inner surface of the bottom 15.
  • sufficient space 17 in the box is provided so that the acoustic membrane can freely vibrate or radiate acoustically.
  • the entire acoustic membrane 1 and the bottom 15 thus constitutes a double bottom.
  • One or more openings 16 are also provided laterally through the bottom 15 to allow the acoustic membrane to radiate the sound produced by the striking mechanism to the outside.
  • the retaining member 7 which is disposed with a certain clearance in a housing 37 of the internal abutment member 27 of the bottom, can come into metal-to-metal contact with the inner stop member 27 of the bottom.
  • the cooperation between the retaining member 7 and the internal stop member 27 allows the membrane not to undergo significant deformation especially when the watch is used for a deep dive.
  • the clearance left to the retaining member 7 in the housing 37 of the internal abutment member 27 can be estimated for example at a maximum of 0.5 mm on each side of the tongue and the rod of the retaining member 7.
  • the note or notes generated by said striking mechanism are transmitted directly to the removable acoustic radiation membrane 1 to vibrate.
  • a vibration transmission to the acoustic membrane 1 is also provided at the edge of the acoustic membrane by the connecting pieces 21, 22 and 24.
  • the acoustic membrane comprises asymmetric regions in the form of an ellipse 2, 3 excavated in the part of base 4 of the membrane, it is likely to vibrate at several first eigenfrequencies according to the number of notes expected to radiate.
  • These first natural frequencies are preferably located in the useful acoustic band between 1 kHz and 4 kHz.
  • the second natural frequencies of vibration of the notes are however located above 4 kHz. This is advantageous because the second vibration frequencies are often destructive of sound.
  • amorphous metal used can be, for example, a metal alloy based on titanium, zirconium and beryllium.
  • a metal alloy based on titanium, zirconium and beryllium.
  • this removable membrane 1 can be made of stainless materials, it can be mounted on a bottom 15 for example of precious metal, such as gold. No difference in electrochemical potential is thus observed even in a humid environment, so that no corrosion occurs in contact with the membrane 1 and the bottom 15.
  • the figure 3 represents a three-dimensional view from below of a musical or striking watch 10 according to the invention before fixing the bottom of the case on the removable membrane 1 and on the middle part 14. It is mainly represented the steps of mounting the removable acoustic membrane 1 in a watch case 14, 15.
  • the peripheral edge 5 of the removable acoustic radiation membrane 1 is disposed on the periphery of a support of the not shown watch movement.
  • An indexing pin, not shown, of the watch case is used to position the membrane, which comprises a cavity at the periphery for receiving said pin.
  • the retaining member 7 of the membrane is positioned according to this view with the tongue parallel to the base portion 4, the length of which is arranged in the 3h - 9h direction of the watch.
  • the metal base 15 comprises an inner side of the watch, an abutment member 27.
  • This inner abutment member 27 is composed of two hook-shaped lugs, which are opposite one another.
  • Each lug has a side wall perpendicular to the bottom 15, and an upper portion substantially parallel to the bottom 15.
  • the side walls and the upper portions of the two lugs define the housing 37 to hold the retaining member 7 of the removable membrane by a mounting bayonet as explained.
  • the housing 37 is, of course, sized to allow some movement of the retaining member 7 of the membrane once positioned in said housing 37.
  • the metal base 15 is first placed on the middle part 14 as shown by the arrows, taking care that the two lugs of the abutment member 27 are oriented so that the width of the tongue of the retaining member 7 passes between the two lugs in the housing 37. Once this operation is completed, the bottom 15 is rotated by an angle of about 90 ° so that the length of the tongue is between the upper portions of the lugs of the stop 27 and the bottom of the housing 37. This defines a mounting type bayonet.
  • the bottom 15 can be screwed to the middle by means of screws not shown, which each pass through a corresponding notch opening 11 of the bottom, and are screwed into threads 31 of the middle part 14.
  • the peripheral edge 5 of the removable membrane 1 is thus kept pressed between the support of the movement and the bottom 15 via the gasket sealing 18 shown in the figure 2 .
  • the watch movement is maintained in a sealed chamber through the membrane fixed between the middle part 14 and the bottom 15.
  • Side openings 16 of the bottom are instead provided for the acoustic radiation of the membrane. It is also through these openings 16 that the membrane can undergo significant pressure depending on the environmental conditions, especially when using the musical watch diving.
  • the flexion of the membrane is limited by the cooperation of the retaining member 7 and the stop member 27 as mentioned above.
  • the retaining member of the membrane may be disposed in a position offset from the center of the membrane.
  • Several retaining members may be provided which each cooperate with a specific stop member within the watch case.
  • the membrane may have a shape other than circular, for example rectangular and be flat.
  • the membrane may include an elliptical region on a first face and another elliptical region on a second opposite face of the membrane.
  • the stop member may be a closed portion defining a housing for receiving a tongue of the L-shaped retaining member.
  • the retaining member may also take a helical shape.

Abstract

The membrane has a central base part (4) comprising a T-shaped retaining member (7) that is engaged with an inner stop member (27) at a back cover (14) of a watch case to limit bending of the membrane following excess pressure or vacuum pressure according to environmental conditions, where the stop member is formed of two hook-shaped catches, and the membrane is in the form of dome. The retaining member comprises a stem fixed to the base part and a rectangular tongue fixed to the stem parallel to the base part. The retaining member is integral with the base part of the membrane. Independent claims are also included for the following: (1) a watch case (2) a musical watch or a striking watch (3) a method for assembling a removable acoustic radiating membrane.

Description

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

L'invention concerne encore une boîte de montre avec une carrure et un fond entre lesquels est maintenue la membrane amovible de rayonnement acoustique.The invention further relates to a watch case with a middle and a bottom between which is maintained the removable acoustic radiation membrane.

L'invention concerne également une montre, qui comprend une membrane amovible de rayonnement acoustique. La montre comprend une boîte de montre constituée essentiellement d'une carrure et d'un fond fixé étanchement et de manière amovible sur la carrure. Une glace est disposée sur un côté opposé au fond pour fermer étanchement ladite boîte. Un mouvement horloger est maintenu à l'intérieur de la boîte de montre et muni d'un mécanisme de sonnerie, tel qu'un module musical. Ce module musical est susceptible d'être activé dans des périodes déterminées pour produire principalement une musique. La membrane amovible de rayonnement acoustique est reliée à la boîte pour rayonner le son produit par le mécanisme de sonnerie vers l'extérieur de la boîte.The invention also relates to a watch, which comprises a removable acoustic radiation membrane. The watch comprises a watch case consisting essentially of a middle and a bottom fixed and securely attached to the middle part. An ice is disposed on a side opposite the bottom to seal said box. A watch movement is maintained inside the watch case and provided with a striking mechanism, such as a musical module. This musical module is likely to be activated in specific periods to produce mainly music. The removable acoustic radiation membrane is connected to the box to radiate the sound produced by the striking mechanism to the outside of the box.

Si la membrane acoustique est maintenue fixée entre la carrure et le fond de la boîte de montre, il peut être prévu un certain nombre d'ouvertures latérales en périphérie du fond de la boîte pour la transmission du son vers l'extérieur de la membrane en vibration. La membrane acoustique doit être réalisée généralement dans un matériau métallique avec une faible épaisseur pour assurer une bonne transmission acoustique du son, ou d'une musique générée par exemple au moyen d'un module musical de la montre. Cependant avec une membrane acoustique de faible épaisseur disposée entre le fond et le mouvement de montre, cette membrane n'est pas en mesure de supporter des surpressions ou dépressions importantes en fonction des conditions environnementales. Ces conditions environnementales concernent les conditions physiques de l'endroit, où est disposée la montre, dans laquelle est placée la membrane acoustique. Une forte pression sur la membrane peut ainsi survenir dans le cas où la montre est utilisée pour une plongée à grande profondeur. Dans ces conditions, la membrane acoustique de faible épaisseur se déforme et vient en contact avec des parties du mouvement de montre. Cela risque d'endommager aussi bien la membrane que certaines parties du mouvement de montre, ce qui constitue un inconvénient.If the acoustic membrane is held fixed between the middle and the bottom of the watch case, it may be provided a number of lateral openings at the periphery of the bottom of the box for the transmission of sound towards the outside of the membrane. vibration. The acoustic membrane must be made generally of a metal material with a small thickness to ensure good acoustic transmission of sound, or music generated for example by means of a module musical watch. However, with a thin acoustic membrane arranged between the bottom and the watch movement, this membrane is not able to withstand high pressures or depressions depending on the environmental conditions. These environmental conditions concern the physical conditions of the place where the watch is placed, in which the acoustic membrane is placed. A strong pressure on the membrane can thus occur in the case where the watch is used for a deep dive. Under these conditions, the thin acoustic membrane deforms and comes into contact with parts of the watch movement. This can damage both the membrane and parts of the watch movement, which is a disadvantage.

Une solution à ce problème est décrite dans le brevet CH 375 664 , qui décrit une montre-bracelet étanche, qui comprend une membrane acoustique et des moyens pour limiter la flexion de ladite membrane vers l'intérieur de la montre. La membrane de forme circulaire est fixée en tant que fond de boîte de montre par son bord périphérique à la carrure. Un second fond de la boîte est fixé en tant que partie externe de la montre en périphérie de la membrane. Ce second fond comprend des ouvertures latérales pour le passage du son. Des moyens d'arrêt sont prévus pour limiter la flexion de la membrane vers l'intérieur de la montre. Pour ce faire, un organe d'appui est fixé dans une position centrale sur la membrane, et le second fond comprend en son centre un organe de butée pour l'organe d'appui de la membrane. L'organe d'appui passe à travers une ouverture du fond au niveau de l'organe de butée pour être fixé au centre de la membrane. Lors d'une grande pression externe, l'organe d'appui de la membrane vient s'appuyer contre l'organe de butée du fond pour éviter que la membrane ne fléchisse trop.A solution to this problem is described in the patent CH 375 664 , which discloses a waterproof wristwatch, which comprises an acoustic membrane and means for limiting the flexion of said membrane towards the inside of the watch. The circular-shaped membrane is attached as a watchcase bottom by its peripheral edge to the middle part. A second bottom of the box is attached as an outer part of the watch on the periphery of the membrane. This second bottom includes lateral openings for the passage of sound. Stop means are provided to limit the bending of the membrane towards the inside of the watch. To do this, a support member is fixed in a central position on the membrane, and the second bottom comprises in its center a stop member for the support member of the membrane. The support member passes through an opening in the bottom at the stop member to be fixed to the center of the membrane. During a large external pressure, the support member of the membrane abuts against the abutment member of the bottom to prevent the membrane from bending too much.

Un inconvénient des moyens d'arrêt pour limiter la flexion de la membrane vers l'intérieur de la montre du brevet CH 375 664 , est que l'organe d'appui est fixé à la membrane en passant à travers une ouverture du second fond de la boîte de montre. Dans ces conditions, de la saleté peut se loger au niveau du passage de l'organe d'appui à travers le fond de la boîte, ce qui peut amortir fortement la sonorité de la transmission acoustique de la membrane. Cela peut également déranger le porteur de la montre et éventuellement lui causer des démangeaisons ou de l'eczéma, ce qui constitue un autre inconvénient. L'organe d'appui peut également être manipulé de l'extérieur et la membrane n'est pas amovible, ce qui constitue encore d'autres inconvénients.A disadvantage of the stop means for limiting the bending of the membrane towards the inside of the patent watch CH 375 664 is that the support member is fixed to the membrane by passing through an opening from the second bottom of the watch case. Under these conditions, dirt can be housed at the passage of the support member through the bottom of the box, which can greatly dampen the sound of the acoustic transmission of the membrane. This can also disturb the wearer of the watch and possibly cause him itching or eczema, which is another disadvantage. The support member can also be handled from the outside and the membrane is not removable, which is still other disadvantages.

L'invention a donc pour but de pallier aux inconvénients de l'état de la technique susmentionné en fournissant une membrane amovible de rayonnement acoustique pour une montre musicale ou une montre à sonnerie, ayant une faible épaisseur et des moyens pouvant coopérer avec une boîte de montre, afin d'éviter toute déformation importante suite à une forte surpression ou dépression une fois logée dans la boîte de montre.The invention therefore aims to overcome the drawbacks of the state of the art mentioned above by providing a removable acoustic radiation membrane for a musical watch or a ring watch, having a small thickness and means that can cooperate with a box of shows, in order to avoid any significant deformation following a strong overpressure or depression once housed in the watch case.

A cet effet, l'invention concerne une membrane amovible de rayonnement acoustique comprenant les caractéristiques définies dans la revendication indépendante 1.For this purpose, the invention relates to a removable acoustic radiation membrane comprising the characteristics defined in the independent claim 1.

Des formes particulières de la membrane amovible de rayonnement acoustique sont définies dans les revendications dépendantes 2 à 11.Particular forms of the removable acoustic radiation membrane are defined in the dependent claims 2 to 11.

A cet effet, l'invention concerne également une boîte de montre, qui comprend les caractéristiques de la revendication indépendante 12.To this end, the invention also relates to a watch case, which comprises the characteristics of the independent claim 12.

Des formes particulières de la boîte de montre sont définies dans les revendications dépendantes 13 à 15.Particular shapes of the watch case are defined in the dependent claims 13 to 15.

A cet effet, l'invention concerne également une montre munie d'une membrane amovible de rayonnement acoustique comprenant les caractéristiques définies dans la revendication indépendante 16.For this purpose, the invention also relates to a watch provided with a removable acoustic radiation membrane comprising the characteristics defined in the independent claim 16.

Des formes particulières de la montre sont définies dans les revendications dépendantes 17 à 19.Particular shapes of the watch are defined in the dependent claims 17 to 19.

Un avantage de l'invention réside dans le fait que notamment la partie de base de la membrane est maintenue par un organe de retenue dans un logement d'un organe intérieur de butée du fond. Ceci permet à la membrane, qui est souple et étanche, de ne pas trop se déformer et de ne pas venir en contact de parties du mouvement lors d'une surpression en fonction des conditions environnementales. Principalement comme le fond comprend des ouvertures latérales pour le rayonnement sonore de la membrane vers l'extérieur, la membrane est maintenue à distance du mouvement par la coopération entre l'organe de retenue et l'organe de butée notamment dans le cas d'une utilisation de la montre pour une plongée. En fonctionnement normal, la membrane est libre de vibrer étant donné que l'organe de retenue est disposé dans le logement de l'organe de butée avec un certain jeu.An advantage of the invention lies in the fact that in particular the base portion of the membrane is held by a retaining member in a housing of an inner abutment member of the bottom. This allows the membrane, which is flexible and tight, not to deform too much and not to come into contact with parts of the movement during an overpressure depending on environmental conditions. Principally as the bottom comprises lateral openings for the sound radiation of the membrane to the outside, the membrane is kept away from the movement by the cooperation between the retaining member and the abutment member especially in the case of a use of the watch for a dive. In normal operation, the membrane is free to vibrate since the retaining member is disposed in the housing of the stop member with a certain clearance.

Comme l'organe de butée et l'organe de retenue son réalisé dans un matériau métallique, aucun amortissement substantiel du son n'est constaté, car aucun joint n'est prévu, mais uniquement une liaison métal-métal entre les deux organes. Aucune saleté ne peut s'accumuler dans le logement de l'organe de butée, étant donné que cet organe de butée est réalisé à l'intérieur de la boîte de montre. De plus l'organe de retenue ne peut pas être manipulé une fois que le fond est fixé sur la carrure de la boîte de montre.As the stop member and the retaining member is made of a metallic material, no substantial damping of the sound is noted, because no seal is provided, but only a metal-metal connection between the two bodies. No dirt can accumulate in the housing of the stop member, since this stop member is made inside the watch case. In addition the retaining member can not be manipulated once the bottom is fixed on the middle part of the watch case.

A cet effet, l'invention concerne également un procédé de montage d'une membrane amovible dans une boîte de montre selon les caractéristiques définies dans la revendication indépendante 20.For this purpose, the invention also relates to a method of mounting a removable membrane in a watch case according to the features defined in the independent claim 20.

Des étapes particulières du procédé sont définies dans les revendications dépendantes 21 et 22.Particular steps of the process are defined in dependent claims 21 and 22.

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

  • la figure 1 représente une vue tridimensionnelle de dessous de la membrane amovible de rayonnement acoustique selon l'invention,
  • la figure 2 représente de manière simplifiée une coupe transversale d'une montre musicale ou à sonnerie, qui est munie d'une membrane amovible acoustique selon l'invention, et
  • la figure 3 représente une vue tridimensionnelle depuis dessous d'une montre musicale ou à sonnerie selon l'invention avant la fixation du fond du boîtier sur la membrane amovible et sur la carrure.
The purposes, advantages and characteristics of the removable acoustic radiation membrane for a musical or striking watch, as well as the watch comprising it, will appear better in the following description on the basis of at least one non-limiting embodiment illustrated by the drawings on which:
  • the figure 1 represents a three-dimensional bottom view of the removable acoustic radiation membrane according to the invention,
  • the figure 2 represents in a simplified manner a cross section of a musical or striking watch, which is provided with a removable acoustic membrane according to the invention, and
  • the figure 3 represents a three-dimensional view from below a musical or striking watch according to the invention before fixing the bottom of the case on the removable membrane and on the middle part.

Dans la description suivante, toutes les parties de la montre à sonnerie ou musicale bien connue dans ce domaine technique, ne seront décrites que sommairement. Il est principalement fait référence à la configuration d'une membrane de rayonnement acoustique notamment pour son maintien en collaboration du fond de la boîte de la montre.In the following description, all parts of the bell or musical watch well known in this technical field, will be described only briefly. It is mainly referred to the configuration of an acoustic radiation membrane in particular for its maintenance in collaboration with the bottom of the watch case.

La figure 1 représente une vue tridimensionnelle de dessous de la membrane amovible de rayonnement acoustique 1 notamment pour une montre musicale, ou une montre à sonnerie. Dans cette forme d'exécution, la membrane amovible peut être réalisée en forme d'une cuvette avec une partie de base 4, en tant que fond de la cuvette, et un bord périphérique 5 pour le montage dans une boîte de montre comme expliqué ci-après en référence aux figures 2 et 3. La membrane 1 peut être une membrane circulaire par exemple de diamètre de l'ordre de 40 mm en bordure et de diamètre de l'ordre de 31 mm dans sa partie de base 4 à titre d'exemple non limitatif. Cependant cette membrane peut être aussi d'une autre forme que circulaire et de dimension différente.The figure 1 represents a three-dimensional view from below of the removable acoustic radiation membrane 1, in particular for a musical watch, or a striking watch. In this embodiment, the removable membrane may be formed in the form of a bowl with a base portion 4, as the bottom of the bowl, and a peripheral edge 5 for mounting in a watch case as explained herein. -after reference to figures 2 and 3 . The membrane 1 may be a circular membrane for example with a diameter of about 40 mm at the edge and a diameter of about 31 mm in its base portion 4 by way of non-limiting example. However, this membrane may also be of a different shape than circular and of different size.

Le bord périphérique 5 de la membrane amovible 1 peut être fixé entre la carrure et le fond de la boîte de montre. Le bord périphérique comprend encore une cavité 6 destinée à recevoir une goupille d'indexage de la boîte de montre pour positionner la membrane 1 dans la boîte de montre. L'intérieur de la montre est étanche par l'intermédiaire de la membrane amovible fixée entre la carrure et le fond de la boîte, mais par contre une ou plusieurs ouvertures latérales peuvent être prévues dans le fond de la boîte pour le rayonnement sonore vers l'extérieur de la membrane en vibration.The peripheral edge 5 of the removable membrane 1 can be fixed between the middle and the bottom of the watch case. The peripheral edge further comprises a cavity 6 for receiving an indexing pin of the watch case to position the membrane 1 in the watch case. The interior of the watch is waterproof through the removable membrane fixed between the middle and the bottom of the box, but by against one or more side openings may be provided in the bottom of the box for sound radiation to the outside of the vibrating membrane.

La membrane amovible 1 comprend un organe de retenue 7, qui est disposé de préférence dans une partie centrale de la membrane, par exemple au centre de la partie de base 4. De préférence, l'organe de retenue vient de matière avec la partie de base 4, même s'il peut aussi être prévu de visser, chasser ou souder cet organe de retenue métallique sur la partie de base 4. La membrane amovible 1 avec l'organe de retenue 7 sont réalisés dans un matériau métallique, tel que le titane ou un métal précieux comme l'or, ou en métal amorphe.The removable membrane 1 comprises a retaining member 7, which is preferably arranged in a central part of the membrane, for example in the center of the base portion 4. Preferably, the retaining member is made of material with the part of base 4, although it can also be provided to screw, hunt or solder the metal retainer on the base portion 4. The removable membrane 1 with the retaining member 7 are made of a metallic material, such as the titanium or a precious metal such as gold, or amorphous metal.

Cet organe de retenue 7 est prévu pour coopérer avec un organe intérieur de butée du fond de la boîte de montre comme expliqué ci-après en référence aux figures 2 et 3. Quand cet organe de retenue 7 est placé dans un logement de l'organe intérieur de butée du fond de la boîte, cela permet de limiter la flexion de la membrane suite à une surpression ou dépression importante en fonction des conditions environnementales. En règle générale, la membrane disposée de manière étanche dans la boîte de montre est susceptible de subir de forte pression lors d'une utilisation de la montre pour une plongée à grande profondeur.This retaining member 7 is provided to cooperate with an internal abutment member of the bottom of the watch case as explained hereinafter with reference to the figures 2 and 3 . When this retaining member 7 is placed in a housing of the inner abutment member of the bottom of the box, this limits the bending of the membrane following a high pressure or depression depending on the environmental conditions. As a general rule, the diaphragm arranged in a sealed manner in the watch case is likely to be subjected to high pressure when the watch is used for deep diving.

L'organe de retenue 7 prend de préférence la forme générale d'un T, mais peut également prendre la forme générale d'un L. Cet organe de retenue est donc constitué d'une tige fixée à la partie de base 4 de la membrane, et une languette fixée sur la tige parallèlement à la partie de base 4. La languette est de forme générale rectangulaire, et est dimensionnée pour que sa largeur permette une insertion de l'organe de retenue dans le logement de l'organe intérieur de butée du fond de la boîte. La longueur de la languette a une dimension adaptée pour retenir la languette dans le logement suite à un montage du type à baïonnette dans le logement du fond de la boîte de montre.The retaining member 7 preferably takes the general shape of a T, but may also take the general shape of an L. This retaining member therefore consists of a rod attached to the base portion 4 of the membrane , and a tongue attached to the rod parallel to the base portion 4. The tongue is generally rectangular in shape, and is dimensioned so that its width allows insertion of the retaining member in the housing of the inner stop member from the bottom of the box. The length of the tongue has a dimension adapted to retain the tongue in the housing following a mounting bayonet type in the housing of the bottom of the watch case.

Pour obtenir une bonne qualité sonore de la membrane en vibration, l'épaisseur de la membrane doit être généralement faible, ce qui nécessite l'emploi de l'organe de retenue 7. L'épaisseur générale de la membrane 1 est de 0.3 mm ou inférieure. Pour maximiser des premières fréquences propres de vibration de la membrane dans la bande de fréquences entre 1 kHz et 4 kHz, la membrane peut être réalisée avec une épaisseur inhomogène spatialement dans sa partie de base. Pour ce faire, elle peut comprendre au moins une première région 2 de forme elliptique formée ou excavée dans le matériau de la membrane. Cette première région elliptique 2 est formée d'un côté opposé au côté portant l'organe de retenue 7. L'épaisseur de la membrane dans cette première région elliptique 2 peut être de l'ordre de 0.15 mm.To obtain good sound quality of the vibrating membrane, the thickness of the membrane must be generally low, which requires the use of the retaining member 7. The overall thickness of the membrane 1 is 0.3 mm or lower. In order to maximize the first natural frequencies of vibration of the membrane in the frequency band between 1 kHz and 4 kHz, the membrane can be made with a spatially inhomogeneous thickness in its base portion. To do this, it may comprise at least a first region 2 of elliptical shape formed or excavated in the material of the membrane. This first elliptical region 2 is formed on a side opposite the side carrying the retaining member 7. The thickness of the membrane in this first elliptical region 2 may be of the order of 0.15 mm.

La membrane amovible 1 peut comprendre encore une seconde région 3 de forme elliptique formée dans le matériau de la membrane. L'épaisseur de la membrane dans cette seconde région est de l'ordre de 0.2 mm. Les deux régions elliptiques 2 et 3 se superposent en partie et sont de dimension adaptée pour maximiser le nombre de modes propres de vibration de la membrane principalement dans la bande de fréquences entre 1 kHz et 4 kHz. La forme d'ellipse est préconisée pour pouvoir avoir deux modes propres de vibration en comparaison d'une région de forme circulaire.The removable membrane 1 may further comprise a second region 3 of elliptical shape formed in the material of the membrane. The thickness of the membrane in this second region is of the order of 0.2 mm. The two elliptical regions 2 and 3 overlap in part and are of suitable size to maximize the number of eigen modes of vibration of the membrane mainly in the frequency band between 1 kHz and 4 kHz. The shape of ellipse is recommended to be able to have two eigen modes of vibration in comparison with a region of circular form.

Il est également à noter qu'en lieu et place de réaliser des régions elliptiques 2, 3 par gravure, fraisage ou creusement dans l'épaisseur totale de la membrane 1, il peut être envisagé de réaliser une membrane avec des régions ayant des propriétés physico-chimiques modifiées localement et de manière déterministe lors de la fabrication ou du post-traitement. Cette procédure permet de réaliser des régions uniformes par exemple elliptiques pour multiplier les modes de vibration et aplatir la réponse en fréquence.It should also be noted that instead of producing elliptical regions 2, 3 by etching, milling or digging in the total thickness of the membrane 1, it can be envisaged to produce a membrane with regions having physical properties. -chemicals modified locally and deterministically during manufacture or after-treatment. This procedure makes it possible to produce uniform regions, for example elliptical, to multiply the vibration modes and to flatten the frequency response.

La figure 2 représente une coupe transversale ou diamétrale d'une montre à sonnerie ou musicale 10. La montre 10 comprend essentiellement une membrane amovible de rayonnement acoustique 1, qui est munie d'un organe de retenue 7 pour coopérer avec un organe intérieur de butée 27 du fond métallique 15 de la boîte de montre. La membrane est également configurée avec les deux régions elliptiques 2 et 3 excavées dans le matériau de sa partie de base 4 pour améliorer le rendement acoustique d'une ou plusieurs notes ou d'une musique produites par un mécanisme de sonnerie. Cette membrane acoustique peut être réalisée par exemple dans un métal amorphe, qui est un matériau inoxydable.The figure 2 represents a cross section or diametral section of a bell or musical watch 10. The watch 10 essentially comprises a removable acoustic radiation membrane 1, which is provided with a retaining member 7 to cooperate with an inner stop member 27 of the metal base 15 of the watch case. The membrane is also configured with the two elliptical regions 2 and 3 excavated in the material of its base portion 4 to improve the acoustic performance of one or more notes or music produced by a striking mechanism. This acoustic membrane may be made for example in an amorphous metal, which is a stainless material.

La montre à sonnerie ou musicale 10 comprend également un mouvement horloger 20, qui est généralement monté sur une platine 24. Une pièce de bordure 22 est fixée à la platine 24, ce qui définit une cage de montre. Habituellement aussi bien la platine 24 que la pièce de bordure 22 sont réalisées dans un matériau métallique.The ring or musical watch 10 also comprises a watch movement 20, which is generally mounted on a plate 24. An edge piece 22 is fixed to the plate 24, which defines a watch cage. Usually both the plate 24 and the edge piece 22 are made of a metallic material.

Le mouvement horloger 20 comprend un mécanisme de sonnerie, non représenté. Ce mécanisme de sonnerie peut comprendre un ou plusieurs timbres montés sur un même porte-timbre solidaire de la platine 24, et un ou plusieurs marteaux montés rotatifs sur la platine pour venir frapper chaque timbre respectif dans des périodes déterminées. Un tel mécanisme de sonnerie est prévu pour signaler une alarme programmée ou des répétitions minutes.The watch movement 20 comprises a striking mechanism, not shown. This striking mechanism may comprise one or more timbres mounted on the same stamp holder integral with the plate 24, and one or more hammers rotatably mounted on the plate to strike each respective patch in specified periods. Such a striking mechanism is provided to signal a programmed alarm or minute repetitions.

Dans une forme d'exécution plus élaborée d'une montre musicale, le mécanisme de sonnerie peut comprendre un module musical muni d'un clavier avec un ensemble de lames reliées à un talon, qui est fixé sur la platine 24. Une note ou une succession de notes de musique sont produites par les vibrations de lames du clavier. Chaque lame est normalement configurée pour la production d'une note particulière, mais il peut être prévu d'avoir certains groupes de deux lames ou plus pour que chaque groupe produise une même note particulière. Pour produire une musique par exemple dans des périodes programmées, les lames du clavier sont levées puis relâchées par des goupilles solidaires d'un cylindre ou d'un disque en rotation sur la platine 24. Chaque lame activée oscille principalement à sa première fréquence propre. Les vibrations générées par les lames activées, sont transmises aux pièces d'habillage de la montre, qui doivent permettre de rayonner acoustiquement le son produit par chaque lame en vibration.In a more elaborate embodiment of a musical watch, the striking mechanism may comprise a musical module provided with a keyboard with a set of blades connected to a heel, which is fixed on the plate 24. A note or a succession of musical notes are produced by keyboard blade vibrations. Each blade is normally configured to produce a particular note, but it can be expected to have certain groups of two or more blades for each group to produce the same particular note. To produce a music for example in programmed periods, the keyboard blades are lifted and released by pins integral with a cylinder or a disc rotating on the plate 24. Each activated blade oscillates mainly at its first natural frequency. Vibrations generated by the activated blades, are transmitted to the dressing parts of the watch, which must allow to radiate acoustically the sound produced by each blade in vibration.

Dans cette forme d'exécution, la membrane acoustique 1 est en forme de cuvette, dont le bord périphérique supérieur 5 est monté de manière étanche par une garniture annulaire 18 sur un rebord annulaire intérieur du fond 15 de la boîte. Le diamètre de cette cuvette, qui peut être équivalent au diamètre de la glace 12 de montre, peut se situer entre 20 et 40 mm. Un support 21 de forme annulaire supporte d'un côté la platine 24 avec la pièce de bordure 22 et s'appuie sur le bord supérieur de la membrane 1 acoustique. Au moment de la fixation de la carrure métallique 14 sur le fond métallique 15 de la boîte de montre, le support 21 et le bord périphérique de la membrane de rayonnement acoustique 1 sont pincés entre la carrure 14 et le rebord du fond 15.In this embodiment, the acoustic membrane 1 is cup-shaped, the upper peripheral edge 5 is sealingly mounted by an annular liner 18 on an inner annular flange of the bottom 15 of the box. The diameter of this bowl, which may be equivalent to the diameter of the watch crystal 12, may be between 20 and 40 mm. An annular support 21 supports on one side the plate 24 with the edge piece 22 and rests on the upper edge of the acoustic membrane 1. At the time of attachment of the middle metal 14 to the metal base 15 of the watch case, the support 21 and the peripheral edge of the acoustic radiation membrane 1 are clamped between the middle part 14 and the edge of the bottom 15.

Il est à noter qu'il peut être prévu de fixer la membrane acoustique 1 par sa bordure 5 d'une autre manière que celle présentée ci-devant. Il peut être envisagé que la membrane soit fixée de manière ponctuelle en 2, 3, 4 ou plus de points par sa bordure, ou qu'elle soit fixée élastiquement ou avec une condition d'appui simple.It should be noted that it may be provided to fix the acoustic membrane 1 by its border 5 in a different way than that presented above. It can be envisaged that the membrane is fixed pointwise at 2, 3, 4 or more points by its border, or that it is fixed elastically or with a single support condition.

Le fond 15 est monté par des moyens connus et de manière amovible sur la carrure 14 avec une garniture d'étanchéité 19. La fixation du fond 15 sur la carrure peut être effectuée au moyen de vis comme expliqué ci-après en référence à la figure 3. Une glace de montre 12 est fixée notamment à la lunette 13 pour fermer étanchement la boîte de montre. Un cadran 23 est maintenu en bordure sur la carrure et disposé au-dessous de la glace de montre 12. Pour une montre mécanique à sonnerie 10, des aiguilles d'indication de l'heure 25 sont prévues sur le cadran, qui porte aussi des index horaires en périphérie.The bottom 15 is mounted by known means and removably on the middle part 14 with a seal 19. The attachment of the bottom 15 to the middle part can be effected by means of screws as explained hereinafter with reference to FIG. figure 3 . A watch crystal 12 is fixed in particular to the bezel 13 to close the watch case tightly. A dial 23 is held at the edge on the middle part and disposed beneath the watch crystal 12. For a mechanical bell watch 10, hour indication hands 25 are provided on the dial, which also bears hourly indexes in the periphery.

Dans un mode de fonctionnement normal, la partie centrale 4 de la membrane acoustique n'est pas en contact avec le support 21 et la surface intérieure du fond 15. De ce fait, un espace suffisant 17 dans la boîte est prévu pour que la membrane acoustique puisse librement vibrer ou rayonner acoustiquement. L'ensemble de la membrane acoustique 1 et du fond 15 constitue ainsi un double fond. Une ou plusieurs ouvertures 16 sont également prévues latéralement à travers le fond 15 pour permettre à la membrane acoustique de rayonner le son produit par le mécanisme de sonnerie vers l'extérieur.In a normal operating mode, the central portion 4 of the acoustic membrane is not in contact with the support 21 and the inner surface of the bottom 15. As a result, sufficient space 17 in the box is provided so that the acoustic membrane can freely vibrate or radiate acoustically. The entire acoustic membrane 1 and the bottom 15 thus constitutes a double bottom. One or more openings 16 are also provided laterally through the bottom 15 to allow the acoustic membrane to radiate the sound produced by the striking mechanism to the outside.

Par contre en cas de surpression ou dépression importante sur la membrane, l'organe de retenue 7, qui est disposé avec un certain jeu dans un logement 37 de l'organe intérieur de butée 27 du fond, peut venir en contact métal contre métal avec l'organe intérieur de butée 27 du fond. La coopération entre l'organe de retenue 7 et l'organe intérieur de butée 27 permet à la membrane de ne pas subir une déformation importante notamment quand la montre est utilisée pour une plongée à grande profondeur. Le jeu laissé à l'organe de retenue 7 dans le logement 37 de l'organe intérieur de butée 27 peut être estimé par exemple à 0.5 mm maximum de chaque côté de la languette et de la tige de l'organe de retenue 7.On the other hand, in the event of excessive pressure or depression on the diaphragm, the retaining member 7, which is disposed with a certain clearance in a housing 37 of the internal abutment member 27 of the bottom, can come into metal-to-metal contact with the inner stop member 27 of the bottom. The cooperation between the retaining member 7 and the internal stop member 27 allows the membrane not to undergo significant deformation especially when the watch is used for a deep dive. The clearance left to the retaining member 7 in the housing 37 of the internal abutment member 27 can be estimated for example at a maximum of 0.5 mm on each side of the tongue and the rod of the retaining member 7.

Lors du fonctionnement du mécanisme de sonnerie, la note ou les notes générées par ledit mécanisme de sonnerie sont transmises directement à la membrane amovible de rayonnement acoustique 1 pour la faire vibrer. Une transmission de vibration à la membrane acoustique 1 est également fournie en bordure de la membrane acoustique par les pièces de liaison 21, 22 et 24. Comme la membrane acoustique comprend des régions asymétriques sous forme d'ellipse 2, 3 excavées dans la partie de base 4 de la membrane, elle est susceptible de vibrer à plusieurs premières fréquences propres en fonction du nombre de notes prévues à rayonner. Ces premières fréquences propres sont situées de préférence dans la bande acoustique utile entre 1 kHz et 4 kHz. Les secondes fréquences propres de vibration des notes sont par contre situées au-dessus de 4 kHz. Ceci est avantageux car les secondes fréquences de vibration sont souvent destructrices de son.During operation of the striking mechanism, the note or notes generated by said striking mechanism are transmitted directly to the removable acoustic radiation membrane 1 to vibrate. A vibration transmission to the acoustic membrane 1 is also provided at the edge of the acoustic membrane by the connecting pieces 21, 22 and 24. As the acoustic membrane comprises asymmetric regions in the form of an ellipse 2, 3 excavated in the part of base 4 of the membrane, it is likely to vibrate at several first eigenfrequencies according to the number of notes expected to radiate. These first natural frequencies are preferably located in the useful acoustic band between 1 kHz and 4 kHz. The second natural frequencies of vibration of the notes are however located above 4 kHz. This is advantageous because the second vibration frequencies are often destructive of sound.

Ces fréquences propres voulues de vibration sonore de la membrane, qui peut être en métal amorphe, sont dépendantes des propriétés physiques, telles que la masse volumique et le module d'Young. Le métal amorphe utilisé peut être par exemple un alliage métallique à base de titane, zirconium et béryllium. De plus avec une telle membrane de rayonnement acoustique 1, il est constaté un amortissement très faible, ce qui procure un très bon rendement sonore de cette membrane acoustique.These desired natural frequencies of sound vibration of the membrane, which may be of amorphous metal, are dependent on physical properties, such as density and Young's modulus. The amorphous metal used can be, for example, a metal alloy based on titanium, zirconium and beryllium. In addition with such an acoustic radiation membrane 1, there is a very low damping, which provides a very good sound performance of this acoustic membrane.

Grâce au fait que cette membrane amovible 1 peut être composée de matériaux inoxydables, elle peut être montée sur un fond 15 par exemple en métal précieux, tel que l'or. Aucune différence de potentiel électro-chimique n'est ainsi constatée même dans un milieu humide, ce qui fait qu'aucune corrosion ne survient au contact de la membrane 1 et du fond 15.Due to the fact that this removable membrane 1 can be made of stainless materials, it can be mounted on a bottom 15 for example of precious metal, such as gold. No difference in electrochemical potential is thus observed even in a humid environment, so that no corrosion occurs in contact with the membrane 1 and the bottom 15.

La figure 3 représente une vue tridimensionnelle depuis dessous d'une montre musicale ou à sonnerie 10 selon l'invention avant la fixation du fond du boîtier sur la membrane amovible 1 et sur la carrure 14. Il est principalement représenté les étapes du montage de la membrane amovible acoustique 1 dans une boîte de montre 14, 15.The figure 3 represents a three-dimensional view from below of a musical or striking watch 10 according to the invention before fixing the bottom of the case on the removable membrane 1 and on the middle part 14. It is mainly represented the steps of mounting the removable acoustic membrane 1 in a watch case 14, 15.

Le bord périphérique 5 de la membrane amovible de rayonnement acoustique 1 est disposé sur la périphérie d'un support du mouvement de montre non représenté. Une goupille d'indexage, non représentée, de la boîte de montre permet de positionner la membrane, qui comprend une cavité en périphérie pour recevoir ladite goupille. L'organe de retenue 7 de la membrane est positionnée selon cette vue avec la languette parallèle à la partie de base 4, dont la longueur est disposée dans la direction 3h - 9h de la montre. On remarque également la position des régions elliptiques 2 et 3 excavées dans la matériau de la membrane, qui sont réalisées du côté du mouvement de montre. Cependant ces régions elliptiques 2 et 3 peuvent aussi être réalisées du même côté que l'organe de retenue 7.The peripheral edge 5 of the removable acoustic radiation membrane 1 is disposed on the periphery of a support of the not shown watch movement. An indexing pin, not shown, of the watch case is used to position the membrane, which comprises a cavity at the periphery for receiving said pin. The retaining member 7 of the membrane is positioned according to this view with the tongue parallel to the base portion 4, the length of which is arranged in the 3h - 9h direction of the watch. We also note the position of the elliptical regions 2 and 3 excavated in the material of the membrane, which are made on the side of the watch movement. However, these elliptical regions 2 and 3 can also be made on the same side as the retaining member 7.

Le fond métallique 15 comprend d'un côté intérieur de la montre, un organe de butée 27. Cet organe intérieur de butée 27 est composé de deux ergots en forme de crochet, qui sont en regard l'un par rapport à l'autre. Chaque ergot a une paroi latérale perpendiculaire au fond 15, et une portion supérieure sensiblement parallèle au fond 15. Les parois latérales et les portions supérieures des deux ergots définissent le logement 37 pour maintenir l'organe de retenue 7 de la membrane amovible par un montage à baïonnette comme expliqué. Le logement 37 est bien entendu, dimensionné pour laisser un certain jeu de mouvement à l'organe de retenue 7 de la membrane une fois positionné dans ledit logement 37.The metal base 15 comprises an inner side of the watch, an abutment member 27. This inner abutment member 27 is composed of two hook-shaped lugs, which are opposite one another. Each lug has a side wall perpendicular to the bottom 15, and an upper portion substantially parallel to the bottom 15. The side walls and the upper portions of the two lugs define the housing 37 to hold the retaining member 7 of the removable membrane by a mounting bayonet as explained. The housing 37 is, of course, sized to allow some movement of the retaining member 7 of the membrane once positioned in said housing 37.

Le fond métallique 15 est tout d'abord posé sur la carrure 14 comme montré par les flèches en prenant soin que les deux ergots de l'organe de butée 27 soient orientés pour que la largeur de la languette de l'organe de retenue 7 passe entre les deux ergots jusque dans le logement 37. Une fois cette opération terminée, le fond 15 est tourné d'un angle d'environ 90° de manière que la longueur de la languette soit entre les portions supérieures des ergots de l'organe de butée 27 et le fond du logement 37. Ceci définit un montage du type à baïonnette.The metal base 15 is first placed on the middle part 14 as shown by the arrows, taking care that the two lugs of the abutment member 27 are oriented so that the width of the tongue of the retaining member 7 passes between the two lugs in the housing 37. Once this operation is completed, the bottom 15 is rotated by an angle of about 90 ° so that the length of the tongue is between the upper portions of the lugs of the stop 27 and the bottom of the housing 37. This defines a mounting type bayonet.

Une fois terminé le montage du type à baïonnette de l'organe de retenue 7 dans le logement 37 de l'organe de butée 27, le fond 15 peut être vissé sur la carrure par l'intermédiaire de vis non représentées, qui passent chacune par une ouverture à cran correspondante 11 du fond, et sont vissées dans des filetages 31 de la carrure 14. Le bord périphérique 5 de la membrane amovible 1 est ainsi maintenu pressé entre le support du mouvement et le fond 15 par l'intermédiaire du joint d'étanchéité 18 montré à la figure 2. Le mouvement de montre est maintenu dans une chambre étanche grâce à la membrane fixée entre la carrure 14 et le fond 15. Des ouvertures latérales 16 du fond sont par contre prévues pour le rayonnement acoustique de la membrane. C'est également par ces ouvertures 16 que la membrane peut subir des pressions importantes en fonction des conditions environnementales, notamment lors de l'utilisation de la montre musicale en plongée. Cependant la flexion de la membrane est limitée par la coopération de l'organe de retenue 7 et de l'organe de butée 27 comme susmentionné.Once the mounting of the bayonet type of the retaining member 7 in the housing 37 of the stop member 27, the bottom 15 can be screwed to the middle by means of screws not shown, which each pass through a corresponding notch opening 11 of the bottom, and are screwed into threads 31 of the middle part 14. The peripheral edge 5 of the removable membrane 1 is thus kept pressed between the support of the movement and the bottom 15 via the gasket sealing 18 shown in the figure 2 . The watch movement is maintained in a sealed chamber through the membrane fixed between the middle part 14 and the bottom 15. Side openings 16 of the bottom are instead provided for the acoustic radiation of the membrane. It is also through these openings 16 that the membrane can undergo significant pressure depending on the environmental conditions, especially when using the musical watch diving. However the flexion of the membrane is limited by the cooperation of the retaining member 7 and the stop member 27 as mentioned above.

A partir de la description qui vient d'être faite, plusieurs variantes de réalisation de la membrane amovible de rayonnement acoustique pour une montre musicale ou une montre à sonnerie, ainsi que la montre musicale ou à sonnerie peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. L'organe de retenue de la membrane peut être disposé dans une position décalée par rapport au centre de la membrane. Il peut être prévu plusieurs organes de retenue, qui coopèrent chacun avec un organe de butée spécifique à l'intérieur de la boîte de montre. La membrane peut avoir une autre forme que circulaire, par exemple rectangulaire et être plane. La membrane peut comprendre une région en forme d'ellipse sur une première face et une autre région en forme d'ellipse sur une seconde face opposée de la membrane. L'organe de butée peut être une portion fermée définissant un logement pour accueillir une languette de l'organe de retenue en forme de L. L'organe de retenue peut également prendre une forme hélicoïdale.From the description that has just been given, several variants of the removable acoustic radiation membrane for a musical watch or a bell watch, as well as the musical watch or bell can be designed by the skilled person without departing from the scope of the invention defined by the claims. The retaining member of the membrane may be disposed in a position offset from the center of the membrane. Several retaining members may be provided which each cooperate with a specific stop member within the watch case. The membrane may have a shape other than circular, for example rectangular and be flat. The membrane may include an elliptical region on a first face and another elliptical region on a second opposite face of the membrane. The stop member may be a closed portion defining a housing for receiving a tongue of the L-shaped retaining member. The retaining member may also take a helical shape.

Claims (22)

Membrane amovible de rayonnement acoustique (1) pour une montre musicale ou une montre à sonnerie (10), ladite membrane étant susceptible d'être fixée de manière amovible entre une carrure (14) et un fond (15) d'une boîte de montre, caractérisée en ce qu'elle comprend un organe de retenue (7) destiné à coopérer avec un organe intérieur de butée (27) du fond de la boîte de montre, pour limiter la flexion de la membrane suite à une surpression ou dépression importante en fonction des conditions environnementales.Removable acoustic radiation membrane (1) for a musical watch or a bell watch (10), said membrane being capable of being removably attached between a middle part (14) and a bottom (15) of a watch case , characterized in that it comprises a retaining member (7) intended to cooperate with an internal abutment member (27) of the bottom of the watch case, in order to limit the flexion of the membrane as a result of a high overpressure or depression in depending on the environmental conditions. Membrane (1) selon la revendication 1, caractérisée en ce que l'organe de retenue (7) est disposé dans une partie centrale (4) de la membrane.Membrane (1) according to claim 1, characterized in that the retaining member (7) is disposed in a central portion (4) of the membrane. Membrane (1) selon l'une des revendications 1 et 2, caractérisée en ce que l'organe de retenue (7) prend la forme d'un T ou d'un L avec une tige fixée à une partie de base (4) de la membrane, et une languette fixée sur la tige parallèlement à la partie de base (4).Membrane (1) according to one of claims 1 and 2, characterized in that the retaining member (7) takes the form of a T or an L with a rod fixed to a base part (4) membrane, and a tongue attached to the rod parallel to the base portion (4). Membrane (1) selon la revendication 3, caractérisée en ce que la languette est de forme générale rectangulaire, dont la largeur est dimensionnée pour être en mesure d'insérer la languette dans un logement (37) d'un organe intérieur de butée (27) du fond de la boîte de montre, alors que la longueur est dimensionnée de manière à retenir la languette dans le logement suite à un montage du type à baïonnette dans le logement.Membrane (1) according to claim 3, characterized in that the tongue is of generally rectangular shape, the width of which is dimensioned so as to be able to insert the tongue into a housing (37) of an internal stop member (27). ) of the bottom of the watch case, while the length is dimensioned so as to retain the tongue in the housing following a mounting bayonet type in the housing. Membrane (1) selon l'une des revendications précédentes, caractérisée en ce que l'organe de retenue (7) vient de matière avec une partie de base de la membrane.Membrane (1) according to one of the preceding claims, characterized in that the retaining member (7) comes from a material with a base portion of the membrane. Membrane (1) selon l'une des revendications précédentes, caractérisée en ce que l'épaisseur générale de la membrane est de 0.3 mm ou inférieure.Membrane (1) according to one of the preceding claims, characterized in that the overall thickness of the membrane is 0.3 mm or less. Membrane (1) selon la revendication 6, caractérisée en ce qu'elle comprend au moins une première région (2) de forme elliptique formée dans le matériau de la membrane, et en ce que l'épaisseur de la membrane dans la première région (2) est de l'ordre de 0.15 mm.Membrane (1) according to claim 6, characterized in that it comprises at least a first region (2) of elliptical shape formed in the material of the membrane, and in that the thickness of the membrane in the first region ( 2) is of the order of 0.15 mm. Membrane (1) selon la revendication 7, caractérisée en ce qu'elle comprend une seconde région (3) de forme elliptique formée dans le matériau de la membrane, et en ce que l'épaisseur de la membrane dans la seconde région (3) est de l'ordre de 0.2 mm, et en ce que les deux régions se superposent en partie de manière à maximiser des premières fréquences propres de vibration de la membrane dans la bande de fréquences entre 1 kHz et 4 kHz.Membrane (1) according to claim 7, characterized in that it comprises a second region (3) of elliptical shape formed in the material of the membrane, and in that the thickness of the membrane in the second region (3) is of the order of 0.2 mm, and in that the two regions overlap in part so as to maximize the first natural frequencies of vibration of the membrane in the frequency band between 1 kHz and 4 kHz. Membrane (1) selon la revendication 1, caractérisée en ce qu'elle est réalisée en métal précieux ou en titane ou en métal amorphe.Membrane (1) according to claim 1, characterized in that it is made of precious metal or titanium or amorphous metal. Membrane (1) selon la revendication 1, caractérisée en ce que la membrane a une forme générale de cuvette avec une partie de base (4), sur laquelle est fixée l'organe de retenue (7), et un bord périphérique (5) pour le montage entre la carrure et le fond de la boîte de montre.Membrane (1) according to claim 1, characterized in that the diaphragm has a general cup shape with a base part (4), on which the retaining member (7) is fixed, and a peripheral edge (5). for mounting between the middle and the bottom of the watch case. Membrane (1) selon l'une des revendications 1 et 10, caractérisée en ce qu'un bord périphérique (5) de la membrane comprend une cavité (6) destinée à recevoir une goupille d'indexage d'une boîte de montre pour positionner la membrane dans la boîte de montre.Membrane (1) according to one of claims 1 and 10, characterized in that a peripheral edge (5) of the membrane comprises a cavity (6) for receiving an indexing pin of a watch case for positioning the membrane in the watch case. Boîte de montre, comprenant au moins une carrure (14) et un fond (15) monté sur la carrure pour fermer la boîte, caractérisée en ce que le fond comprend un organe intérieur de butée (27) ayant un logement (37) adapté pour accueillir un organe de retenue (7) d'une membrane amovible de rayonnement acoustique selon l'une des revendications précédentes, la membrane étant susceptible d'être fixée de manière amovible entre la carrure et le fond de la boîte.Watch case, comprising at least one middle part (14) and a bottom (15) mounted on the case middle to close the box, characterized in that the bottom comprises an internal stop member (27) having a housing (37) adapted to accommodate a retaining member (7) of a removable acoustic radiation membrane according to one of the preceding claims, the membrane being removably attachable between the middle and the bottom of the box. Boîte de montre selon la revendication 12, caractérisée en ce que l'organe intérieur de butée (27) comprend deux ergots en forme de crochet en regard l'un par rapport à l'autre, chaque ergot ayant une paroi latérale et une portion supérieure pour définir le logement (37) entre les deux ergots afin de pouvoir maintenir l'organe de retenue de la membrane amovible par un montage à baïonnette.Watch case according to claim 12, characterized in that the internal stop member (27) comprises two spurs in the form of hook facing one another, each lug having a side wall and an upper portion to define the housing (37) between the two lugs in order to maintain the retaining member of the removable membrane by a mounting with bayonet. Boîte de montre selon la revendication 13, caractérisée en ce que le logement (37) entre les deux ergots, est dimensionné de telle manière à laisser un certain jeu pour le mouvement de l'organe de retenue de la membrane amovible.Watch case according to claim 13, characterized in that the housing (37) between the two lugs is dimensioned such as to leave some clearance for the movement of the retaining member of the removable membrane. Boîte de montre selon la revendication 12, caractérisée en ce que le fond comprend une ou plusieurs ouvertures latérales (16) pour le rayonnement d'au moins un son généré dans la boîte de montre vers l'extérieur.Watch case according to claim 12, characterized in that the bottom comprises one or more lateral openings (16) for radiating at least one sound generated in the watch case to the outside. Montre musicale ou à sonnerie (10), comprenant une boîte de montre selon l'une des revendications 12 à 15, la boîte comprenant une carrure (14) et un fond (15) muni d'au moins une ouverture latérale (16), le fond étant fixé étanchement et de manière amovible à la carrure, une glace (12) fermant étanchement la boîte, un mouvement horloger (20) maintenu à l'intérieur de la boîte de montre et muni d'un mécanisme de sonnerie susceptible d'être activé dans des périodes déterminées pour produire une note ou plusieurs notes ou une musique, et au moins une membrane amovible de rayonnement acoustique (1) selon l'une des revendications 1 à 11, qui est disposée dans la boîte de montre, caractérisée en ce qu'un organe de retenue (7) de la membrane est disposé dans un logement (37) d'un organe intérieur de butée (27) du fond de la boîte de montre, pour limiter la flexion de la membrane suite à une surpression ou dépression importante en fonction des conditions environnementales.Musical or striking watch (10), comprising a watch case according to one of claims 12 to 15, the box comprising a middle part (14) and a bottom (15) provided with at least one lateral opening (16), the bottom being fixed securely and removably to the middle part, an ice (12) sealing the box, a watch movement (20) held inside the watch case and provided with a striking mechanism capable of being activated in specified periods to produce a note or several notes or music, and at least one removable acoustic radiation membrane (1) according to one of claims 1 to 11, which is arranged in the watch case, characterized in that that a retaining member (7) of the membrane is arranged in a housing (37) of an internal abutment member (27) of the bottom of the watch case, to limit the bending of the membrane following an overpressure or significant depression depending on the surrounding conditions onnementales. Montre (10) selon la revendication 16, caractérisée en ce que l'organe de retenue (7) prend la forme d'un T avec une tige fixée sur une partie de base (4) de la membrane et une languette de forme générale rectangulaire fixée sur la tige parallèlement à la partie de base (4), et en ce que l'organe intérieur de butée (27) comprend deux ergots en forme de crochet en regard l'un par rapport à l'autre, chaque ergot ayant une paroi latérale et une portion supérieure pour définir un logement (37) entre les deux ergots afin de pouvoir maintenir l'organe de retenue de la membrane amovible suite à un montage à baïonnette.Watch (10) according to claim 16, characterized in that the retaining member (7) takes the form of a T with a rod fixed on a base portion (4) of the membrane and a tongue of generally rectangular shape fixed on the rod parallel to the base part (4), and in that the inner abutment member (27) comprises two lugs in the form of hook opposite one another, each lug having a side wall and an upper portion to define a housing (37) between the two lugs in order to maintain the retaining member of the removable membrane following a bayonet mount. Montre (10) selon la revendication 16, caractérisée en ce que la membrane acoustique (1) est maintenue sur un rebord intérieur du fond (15) de la boîte et une partie de la carrure (14), et en ce que la périphérie de la membrane acoustique (1) est pincée avec la périphérie d'un support (21) du mouvement entre la carrure (14) et le rebord intérieur du fond (15) de la boîte.Watch (10) according to claim 16, characterized in that the acoustic membrane (1) is held on an inner rim of the bottom (15) of the box and a part of the middle part (14), and in that the periphery of the the acoustic membrane (1) is clamped with the periphery of a support (21) of movement between the middle (14) and the inner rim of the bottom (15) of the box. Montre (10) selon la revendication 18, caractérisée en ce que la membrane acoustique (1) a une forme de cuvette, dont un bord supérieur (5) est pincé avec le support annulaire entre la carrure (14) et un rebord annulaire intérieur du fond (15) de la boîte, une garniture d'étanchéité annulaire (18) étant placée entre le rebord du fond (15) et le bord annulaire de la membrane, et en ce qu'une partie centrale de la membrane acoustique n'est pas en contact avec le support (21) et une surface intérieure du fond (15) de la boîte pour définir un espace (17) afin de pouvoir osciller librement.Watch (10) according to claim 18, characterized in that the acoustic membrane (1) has a bowl shape, an upper edge (5) is clamped with the annular support between the middle part (14) and an inner annular flange of bottom (15) of the box, an annular seal (18) being placed between the bottom flange (15) and the annular edge of the membrane, and in that a central portion of the acoustic membrane is not in contact with the support (21) and an interior surface of the bottom (15) of the box to define a space (17) in order to be able to oscillate freely. Procédé de montage d'une membrane amovible de rayonnement acoustique selon l'une des revendications 1 à 11 dans une boîte de montre selon l'une des revendications 12 à 15, caractérisé en ce que le procédé comprend les étapes consistant à : - placer et positionner la membrane amovible (1) sur la carrure, - monter le fond (15) de la boîte sur la carrure avec l'organe intérieur de butée (27) orienté de manière à loger la languette de l'organe de retenue (7) de la membrane dans un logement (37) de l'organe intérieur de butée (27), - tourner le fond (15) sur la carrure d'un angle d'environ 90° pour disposer la longueur de la languette de l'organe de retenue (7) entre deux portions supérieures d'ergots de l'organe de butée (27) et le fond du logement (37) du fond pour effectuer un montage à baïonnette de l'organe de retenue (7) dans le logement de l'organe de butée (27), et - fixer le fond (15) sur la carrure. A method of mounting a removable acoustic radiation membrane according to one of claims 1 to 11 in a watch case according to one of claims 12 to 15, characterized in that the method comprises the steps of: - place and position the removable membrane (1) on the middle part, - Mount the bottom (15) of the box on the middle part with the internal abutment member (27) oriented to accommodate the tongue of the retaining member (7) of the membrane in a housing (37) of the internal stop member (27), - turn the bottom (15) on the middle part of an angle of about 90 ° to arrange the length of the tongue of the retaining member (7) between two upper portions of lugs of the abutment member (27) and the bottom of the housing (37) of the bottom to perform a bayonet mounting of the retaining member (7) in the housing of the stop member (27). ), and - fix the bottom (15) on the middle part. Procédé selon la revendication 20, caractérisé en ce que le fond est fixé sur la carrure au moyen d'un certain nombre de vis passant chacune dans une ouverture à cran correspondante dans le fond, et chacune vissée dans un filetage respectif dans la carrure.A method according to claim 20, characterized in that the bottom is fixed to the middle part by means of a number of screws each passing through a corresponding notch opening in the bottom, and each screwed into a respective thread in the middle part. Procédé selon la revendication 20, caractérisé en ce que la membrane est orientée sur la carrure au moyen d'une cavité (6) en périphérie susceptible de recevoir une goupille d'indexage de la boîte de montre.A method according to claim 20, characterized in that the membrane is oriented on the middle part by means of a cavity (6) periphery capable of receiving an indexing pin of the watch case.
EP11159275.4A 2011-03-22 2011-03-22 Abnehmbare akustische Membran für eine Armbanduhr mit Spieluhr oder Schlagwerk, und Armbanduhr umfassende diese Membran Active EP2503417B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11159275.4A EP2503417B1 (en) 2011-03-22 2011-03-22 Abnehmbare akustische Membran für eine Armbanduhr mit Spieluhr oder Schlagwerk, und Armbanduhr umfassende diese Membran
CH00485/11A CH704673A2 (en) 2011-03-22 2011-03-22 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
US13/424,650 US8770833B2 (en) 2011-03-22 2012-03-20 Removable acoustic radiating membrane for a musical watch or striking watch and watch including the same
CN201210075493.6A CN102692867B (en) 2011-03-22 2012-03-21 Removable acoustic membrane, its assemble method, repeat watch sheath body and music repeat watch
JP2012065121A JP5616388B2 (en) 2011-03-22 2012-03-22 Detachable acoustic radiation film for a music watch or time-watching watch and a watch including the film
HK13103544.0A HK1176692A1 (en) 2011-03-22 2013-03-21 Removable acoustic radiating membrane, method of assembling the same, and musical or striking watch

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EP11159275.4A EP2503417B1 (en) 2011-03-22 2011-03-22 Abnehmbare akustische Membran für eine Armbanduhr mit Spieluhr oder Schlagwerk, und Armbanduhr umfassende diese Membran

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EP2503417B1 EP2503417B1 (en) 2016-03-16

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EP (1) EP2503417B1 (en)
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CH224250A (en) * 1941-07-01 1942-11-15 Colomb Henri Waterproof box for timepieces.
CH285202A (en) * 1949-08-19 1952-08-31 Tavannes Watch Co Sa Alarm clock.
US2786326A (en) * 1951-07-05 1957-03-26 Junghans Geb Ag Alarm timepiece sounding device
CH375664A (en) 1960-10-07 1963-11-15 Montres Vulcain Et Studio S A Waterproof wristwatch
CH1127360A4 (en) * 1960-10-07 1963-11-15

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015043905A1 (en) * 2013-09-26 2015-04-02 Montres Breguet Sa Timepiece having an improved sound level
US9417611B2 (en) 2013-09-26 2016-08-16 Montres Breguet Sa Timepiece with improved sound level
EP2881806A1 (en) * 2013-12-09 2015-06-10 Montres Breguet SA Acoustic dispersion membrane for a musical watch
US9658601B2 (en) 2013-12-09 2017-05-23 Montres Breguet S.A. Acoustic radiating membrane for a musical watch
EP3009895A1 (en) * 2014-10-15 2016-04-20 Montres Breguet SA Musical or chiming watch provided with a sound-projecting arrangement
US9360843B2 (en) 2014-10-15 2016-06-07 Montres Breguet Sa Musical or striking watch provided with an acoustic radiation arrangement

Also Published As

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HK1176692A1 (en) 2013-08-02
US20120243389A1 (en) 2012-09-27
US8770833B2 (en) 2014-07-08
JP2012198211A (en) 2012-10-18
JP5616388B2 (en) 2014-10-29
CH704673A2 (en) 2012-09-28
EP2503417B1 (en) 2016-03-16
CN102692867A (en) 2012-09-26
CN102692867B (en) 2015-08-26

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