EP2461220A1 - Acoustic membrane for a musical box or an alarm watch - Google Patents
Acoustic membrane for a musical box or an alarm watch Download PDFInfo
- Publication number
- EP2461220A1 EP2461220A1 EP10193427A EP10193427A EP2461220A1 EP 2461220 A1 EP2461220 A1 EP 2461220A1 EP 10193427 A EP10193427 A EP 10193427A EP 10193427 A EP10193427 A EP 10193427A EP 2461220 A1 EP2461220 A1 EP 2461220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- sheet
- watch
- cells
- acoustic
- 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
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 118
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000005855 radiation Effects 0.000 claims description 32
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 13
- 239000010931 gold Substances 0.000 claims description 12
- 229910052737 gold Inorganic materials 0.000 claims description 12
- 239000005300 metallic glass Substances 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 210000004027 cell Anatomy 0.000 description 37
- 241000264877 Hippospongia communis Species 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241001415961 Gaviidae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000026683 transduction Effects 0.000 description 2
- 238000010361 transduction Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Images
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
- G04B37/00—Cases
- G04B37/0075—Cases with means to enhance sound transmission
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G17/00—Structural details; Housings
- G04G17/02—Component assemblies
-
- 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
- G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
-
- 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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
- G10K9/20—Sounding members
Definitions
- An acoustic radiation membrane for a music box such as a musical watch, or a bell watch.
- the invention also relates to a watch, which comprises an 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 that can be activated in specified periods of time to produce sound or music.
- the acoustic radiation membrane is connected to the box to radiate the sound produced by the striking mechanism to the outside of the box.
- a watch movement of a traditional architecture may also include a striking mechanism.
- This striking mechanism can be provided to generate at least one sound via a hammer struck stamp at times determined in a bell watch to signal a programmed alarm or minute repetitions.
- This stamp is usually a circular wire, which surrounds part of the watch movement in a watch cage. This stamp is attached to a stamp holder attached to a plate or the watch case.
- the striking mechanism may also be provided to generate music via a multi-blade keyboard individually activated by pins of a cylinder or disc in a musical watch.
- the keyboard blades are connected to the same heel, which can be fixed on the plate or the watch case, and the pins of the cylinder or rotating disk can lift the free end of some blades. Following the bending of the blades by the action of the pins, these blades are released by the pins.
- the activated blades oscillate essentially at their first natural frequency.
- the timbre of the bell watch or the keyboard of the musical watch are arranged inside the watch case.
- the vibrations of the timbre or the keyboard blades are transmitted to the trim parts.
- These pieces of clothing are for example the middle part, the bezel, the ice and the bottom of the watch case. These large pieces begin to radiate sound in the air under the effect of transmitted vibrations. When a sound is produced either by a stamp struck by a hammer or by one or more blades of the vibrating keyboard, these pieces of clothing are able to radiate the sound produced in the air.
- the acoustic output based on the complex vibro-acoustic transduction of the trim pieces, is low.
- the material, geometry and boundary conditions of the trim pieces must be taken into account.
- the configurations of these pieces of clothing are also dependent on the aesthetics of the watch and operating constraints, which may limit the possibilities of adaptation.
- a membrane of the acoustic type which is dedicated to vibro-acoustic transduction.
- a piezoelectric element for example on the membrane to make it vibrate as mentioned in the patent CH 581 860 . So that the sound radiation of the membrane is not lost in the watch, which must be sealed, it can be provided a double bottom of the watch case, which is open to the outside. In this case, the bottom of the watch case has one or more openings for transmitting the sound of the vibrating membrane.
- This membrane must in principle have its first natural vibration frequency, which is the effective mode of radiation, in the useful acoustic frequency band.
- its second natural frequency which is an inefficient mode, must be outside this audible band if possible.
- the useful acoustic frequency band is generally between 1 kHz and 4 kHz.
- the physical properties such as the density and the Young's modulus, must make it possible to adapt the first and second eigenfrequencies. If this membrane is made of steel, the first and second natural frequencies of vibration do not fulfill the above conditions optimally. In addition, a rapid depreciation is found, which is a disadvantage.
- this membrane In a standard bell watch, which is provided for example with an acoustic membrane, this membrane is sandwiched between a portion of the middle part and the bottom of the watch case.
- the bottom can be made of a precious material, such as gold. It can occur in contact with the membrane usually made of steel with the gold bottom, an electrochemical potential difference especially in a humid environment. This is likely to promote the corrosion of said membrane at the contact with the gold background, which is a drawback. It must therefore also be found a stainless material with no potential difference with gold and whose internal damping is low.
- the purpose of the invention is therefore to overcome the drawbacks of the state of the art mentioned above by providing an acoustic radiation membrane for a music box or a striking watch, made in such a way as to obtain the most uniform amplification possible on the audible frequency band, essentially in the frequency range between 1 kHz and 4 kHz.
- the invention relates to an acoustic radiation membrane comprising the characteristics defined in independent claim 1.
- An advantage of the acoustic radiation membrane according to the present invention lies in the fact that it comprises on at least a first thickness smaller than the total thickness of the membrane a number of cells or protruding portions. These cells or protruding portions are of size and shape, which depend on the type of material of the membrane and the note or notes of music to radiate effectively.
- the acoustic radiation membrane consists of at least two sheets, of which one of the sheets at the first thickness, is provided with a number of cells preferably distributed in the form of a honeycomb. Each cell can be shaped and dimension dependent on the musical note to radiate effectively.
- the first sheet may comprise a number of cells of different size to efficiently radiate an equivalent number of musical notes. This thus makes it possible to increase the overall acoustic level, which can be perceived by a user of the music box or ringing watch in which said acoustic membrane is placed.
- the acoustic radiation membrane comprises a first sheet with honeycomb cells uniformly distributed, which is fixed on a second sheet without cells, and a third sheet with cells including honeycomb, fixed on one side opposite of the second sheet.
- the second sheet may be a gold leaf
- the first and third sheets may be provided in amorphous metal or metal glass, or also in gold.
- the arrangement of several cell sheets may also make it possible to increase the number of eigenfrequencies in the useful audible frequency band, namely between 1 kHz and 4 kHz, in order also to increase the overall acoustic level. With such a membrane, there is a very low damping, which allows to obtain a very good sound output.
- the invention also relates to a watch provided with an acoustic radiation membrane comprising the characteristics defined in the independent claim 13.
- the figure 1 represents a simplified and exploded three-dimensional view of an acoustic radiation membrane 1 for a music box, such as a musical watch, or a striking watch.
- the membrane 1 firstly comprises a first sheet 2, which comprises several cells 5, which may be of identical or different size.
- This first sheet 2 may be glued or soldered to a first face of a second sheet 3 without cells so as to ensure a certain seal inside the watch, once the membrane is mounted in the watch case.
- a third sheet 4 with cells 6 of identical or different size can still be glued or brazed to a second face of the second sheet 3.
- the cells 5 of the first sheet 2 can be arranged opposite the cells 6 of identical or different size of the third sheet 4.
- the membrane 1 comprises only the first sheet 2 at a first thickness and the second sheet 3 at a second thickness.
- the thickness of each sheet may be less than 0.2 mm, and preferably close to 0.1 mm.
- the cells 5, 6 of the first sheet 2 and the third sheet 4 are evenly spaced from each other, and configured in the form of a honeycomb with six identical sides. Although only three cells are represented on the figure 1 it is understood that said membrane 1 may comprise a larger number of cells to occupy most of the surface of the acoustic membrane 1. Other shapes of cells may also be imagined, for example circular or oval, but the honeycomb configuration makes it possible to better fill the surface of the cell membrane.
- all the cells of the first sheet 2 are of identical shape and size.
- the size is determined also according to the material of the first sheet 2 and the second sheet 3.
- the larger the cell size the higher the corresponding frequency is serious, i.e. low frequency.
- the greater the total thickness of the membrane 1 is important, and the frequency of the radiated note is high.
- the total thickness of the membrane is in principle less than or equal to 1 mm.
- each cell 5, 6 of the first sheet 2 and / or the third sheet 4 is dimensioned for each note. particular music.
- each cell 5, 6 of the first sheet 2 and / or the third sheet 4 is dimensioned for each note. particular music.
- it is defined a set of mini-membranes each configured for effective radiation of a particular note of a music with a uniform amplification of the first eigenfrequencies between 1 kHz and 4 kHz.
- the number of cells in the first and / or third sheets 2, 4 is identical to the number of musical notes that can be generated in the musical watch. To radiate between 10 and 15 notes effectively with said membrane, it is necessary to make between 10 and 15 cells.
- the first, second and third sheets 2, 3, 4 of the acoustic membrane 1 are made of a metallic material, which may be different for each sheet or the same, or of metal glass for at least one of the three sheets.
- the second sheet 3 without cavities may be made of gold or titanium
- the first and third sheets 2, 4 are made of amorphous metal or metal glass. It may be conceivable that all sheets are made of gold or titanium to define a membrane of the same material.
- the acoustic membrane 1 it is preferable to first machine the cells 5, 6 on the first sheet 2 and the third sheet 4 before their attachment by bonding or brazing on the second sheet 3.
- the cells 5 , 6 in the first and third sheets are machined for example by stamping or etching.
- the acoustic radiation membrane 1 may be composed of more than two cell sheets to define a set of cell sheets, and at least one sheet without cells inserted between two of the cell sheets. All leaves are glued or brazed one on the other. Each sheet may have the same thickness, for example of the order of 0.1 mm or a thickness different from one another, but the total thickness of the membrane must in principle be less than or equal to 1 mm depending on the material. selected. Each cell sheet can thus be configured for the radiation of a given note among several notes to be radiated by the membrane with uniform amplification.
- the figure 2 represents a simplified three-dimensional view of the acoustic membrane 1 once all the sheets are assembled.
- This acoustic membrane 1 to be mounted in a ring or musical watch may be circular in shape with a diameter of between 20 and 40 mm, preferably close to 31 mm. It can be flat or bowl-shaped as shown partly in the figure 3 explained below.
- first sheet 2 provided with cells 5 on a first thickness of the thickness total of the acoustic membrane 1
- protruding portions may also be configured as honeycombs and each be tuned for the effective radiation of a particular note.
- the figure 3 represents a partial section of a bell or musical watch 10.
- the watch 10 essentially comprises an acoustic radiation membrane 1 according to the invention for improving the acoustic performance of a note or notes produced by a striking mechanism.
- This acoustic membrane may comprise two or three sheets 2, 3, 4, of which one or two sheets 2, 4 are in cells 5, 6 and an intermediate sheet 3 is without cells.
- At least the two cell sheets may be made of an amorphous metal or metal glass, which is a stainless material, while the second intermediate sheet 3 may be made of gold or titanium.
- the thickness of this membrane 1 may be less than or equal to 1 mm.
- 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 at least one stamp mounted on a stamp holder integral with the plate 24, and at least one hammer rotatably mounted on the plate to strike said stamp in specified periods.
- the generally circular stamp surrounds the various parts of the watch movement of the ringing watch. Such a striking mechanism is provided to signal a programmed alarm or minute repetitions.
- the striking mechanism may comprise a keyboard with a set of blades connected to a heel, which is attached to the deck 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 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. The vibrations generated by the activated blades are transmitted to the watch's trim pieces, which must make it possible to radiate acoustically the sound produced by each vibrating blade.
- the acoustic membrane 1 is cup-shaped, the upper edge of which is sealingly mounted by an annular liner 18 on an inner annular flange of the bottom 15 of the box.
- the diameter of this cuvette which may be equivalent to the diameter of the watch crystal 12, may be between 20 and 40 mm, preferably close to 31 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 caseband 14 to the bottom 15 of the watch case, the support 21 and the peripheral edge of the acoustic radiation membrane 1 are clamped between the caseband 14 and the base rim 15.
- the bottom 15 is mounted by known means and removably on the middle part 14 with a seal 19.
- a watch crystal 12 is fixed in particular to the bezel 13 to seal the watch case.
- a dial 23 is held at the edge on the middle part and arranged beneath the watch crystal 12.
- time indication hands which are not shown, are provided on the dial, which usually carries hourly indices in the periphery.
- the central portion 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.
- the note or notes generated by said striking mechanism are transmitted directly to the 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 is composed of sheets made of gold or titanium or partly of amorphous metal, it is likely to vibrate at several first eigenfrequencies functions of the number of notes expected to radiate. These first natural frequencies are preferably located in the useful acoustic band between 1 and 4 kHz.
- the second natural frequencies of vibration of the notes are however located above 4 kHz. This is very advantageous since the second vibration frequencies are often destructive of sound.
- this membrane is composed of stainless materials, it can be mounted on a background for example of precious metal, such as gold. No electrochemical potential difference is thus found even in a humid environment, which means that no corrosion occurs in contact with the membrane 1 and the bottom 15.
- the metallic glass or amorphous metal used for the production of at least two cellular sheets of the membrane may for example be a metal alloy based on titanium, zirconium and beryllium.
- the amorphous metal alloy may comprise 41% of zirconium, 14% of titanium, 12% of copper, 10% of nickel and 23% of beryllium.
- the Young's modulus of this alloy is 105 GPa and the elastic limit is 1.9 GPa.
- the amorphous metal alloy may also consist of 57.5% platinum, 14.7% copper, 5.3% nickel and 22.5% phosphorus.
- the Young's modulus of this alloy is in this case 98 GPa and the elastic limit is 1.4 GPa.
- the acoustic membrane may be located in the watch case at the middle of the case with an opening through the caseband for the sound radiation of the acoustic membrane in vibration.
- the acoustic membrane may possibly be located on an outer portion of the watch case, but disposed at least on an opening of the housing so that the note or notes generated by the striking mechanism can vibrate the membrane. It can be provided several acoustic membranes arranged in several places inside the watch case or superimposed. These acoustic membranes can be made with the same number or a different number of cell sheets.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromechanical Clocks (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
L'invention concerne une membrane de rayonnement acoustique pour une boîte à musique, telle qu'une montre musicale, ou une montre à sonnerie.An acoustic radiation membrane for a music box, such as a musical watch, or a bell watch.
L'invention concerne également une montre, qui comprend une membrane 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 susceptible d'être activé dans des périodes déterminées pour produire un son ou une musique. La membrane 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 an 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 that can be activated in specified periods of time to produce sound or music. The acoustic radiation membrane is connected to the box to radiate the sound produced by the striking mechanism to the outside of the box.
Dans le domaine de l'horlogerie, un mouvement horloger d'une architecture traditionnelle peut également comprendre un mécanisme de sonnerie. Ce mécanisme de sonnerie peut être prévu pour générer au moins un son par l'intermédiaire d'un timbre frappé par un marteau en des instants déterminés dans une montre à sonnerie pour signaler une alarme programmée ou des répétitions minutes. Ce timbre est généralement un fil métallique de forme circulaire, qui entoure une partie du mouvement horloger dans une cage de montre. Ce timbre est fixé à un porte-timbre solidaire d'une platine ou de la boîte de montre.In the field of horology, a watch movement of a traditional architecture may also include a striking mechanism. This striking mechanism can be provided to generate at least one sound via a hammer struck stamp at times determined in a bell watch to signal a programmed alarm or minute repetitions. This stamp is usually a circular wire, which surrounds part of the watch movement in a watch cage. This stamp is attached to a stamp holder attached to a plate or the watch case.
Le mécanisme de sonnerie peut également être prévu pour générer une musique par l'intermédiaire d'un clavier à plusieurs lames activées individuellement par des goupilles d'un cylindre ou d'un disque dans une montre musicale. Les lames du clavier sont reliées à un même talon, qui peut être fixé sur la platine ou la boîte de montre, et les goupilles du cylindre ou du disque en rotation permettent de soulever l'extrémité libre de certaines lames. Suite à la flexion des lames par l'action des goupilles, ces lames sont relâchées par les goupilles. Les lames activées se mettent à osciller essentiellement à leur première fréquence propre.The striking mechanism may also be provided to generate music via a multi-blade keyboard individually activated by pins of a cylinder or disc in a musical watch. The keyboard blades are connected to the same heel, which can be fixed on the plate or the watch case, and the pins of the cylinder or rotating disk can lift the free end of some blades. Following the bending of the blades by the action of the pins, these blades are released by the pins. The activated blades oscillate essentially at their first natural frequency.
Le timbre de la montre à sonnerie ou le clavier de la montre musicale sont disposés à l'intérieur de la boîte de montre. Ainsi les vibrations du timbre ou des lames du clavier sont transmises aux pièces d'habillage. Ces pièces d'habillage sont par exemple la carrure, la lunette, la glace et le fond de la boîte de montre. Ces grandes pièces se mettent à rayonner du son dans l'air sous l'effet des vibrations transmises. Lorsqu'un son est produit soit par un timbre frappé par un marteau, soit par une ou plusieurs lames du clavier en vibration, ces pièces d'habillage sont capables de rayonner le son produit dans l'air.The timbre of the bell watch or the keyboard of the musical watch are arranged inside the watch case. Thus the vibrations of the timbre or the keyboard blades are transmitted to the trim parts. These pieces of clothing are for example the middle part, the bezel, the ice and the bottom of the watch case. These large pieces begin to radiate sound in the air under the effect of transmitted vibrations. When a sound is produced either by a stamp struck by a hammer or by one or more blades of the vibrating keyboard, these pieces of clothing are able to radiate the sound produced in the air.
Dans une montre à sonnerie ou musicale traditionnelle, le rendement acoustique, sur la base de la transduction vibro-acoustique complexe des pièces d'habillage, est faible. Pour améliorer et augmenter le niveau acoustique perçu par l'utilisateur de la montre à sonnerie ou musicale, il doit être tenu compte de la matière, de la géométrie et des conditions aux limites des pièces d'habillage. Les configurations de ces pièces d'habillage sont aussi dépendantes de l'esthétique de la montre et des contraintes de fonctionnement, ce qui peut limiter les possibilités d'adaptation.In a traditional bell or musical watch, the acoustic output, based on the complex vibro-acoustic transduction of the trim pieces, is low. To improve and increase the acoustic level perceived by the user of the bell or musical watch, the material, geometry and boundary conditions of the trim pieces must be taken into account. The configurations of these pieces of clothing are also dependent on the aesthetics of the watch and operating constraints, which may limit the possibilities of adaptation.
Il est connu dans la technique horlogère d'utiliser dans une montre notamment électronique, une membrane du type acoustique, qui est dédiée à la transduction vibro-acoustique. Pour activer une telle membrane dans une montre électronique, il est placé un élément piézoélectrique par exemple sur la membrane pour la faire vibrer comme mentionné dans le brevet
Avec une telle construction d'une montre électronique à membrane acoustique, il est rencontré souvent des problèmes d'étanchéité et de corrosion de ladite membrane. Cette membrane doit en principe avoir sa première fréquence propre de vibration, qui est le mode efficace de rayonnement, dans la bande de fréquences acoustiques utile. Par contre, sa deuxième fréquence propre, qui est un mode peu efficace, doit être si possible en dehors de cette bande audible. La bande de fréquences acoustiques utile se situe généralement entre 1 kHz et 4 kHz. En fonction des conditions aux limites et de la géométrie fixées de la membrane, les propriétés physiques, telles que la densité et le module d'Young, doivent permettre d'adapter les première et deuxième fréquences propres. Si cette membrane est réalisée en acier, les première et seconde fréquences propres de vibration ne remplissent pas les conditions susmentionnées de façon optimale. De plus, un amortissement rapide est constaté, ce qui est un inconvénient.With such a construction of an electronic acoustic diaphragm watch, it is often encountered problems of sealing and corrosion of said membrane. This membrane must in principle have its first natural vibration frequency, which is the effective mode of radiation, in the useful acoustic frequency band. On the other hand, its second natural frequency, which is an inefficient mode, must be outside this audible band if possible. The useful acoustic frequency band is generally between 1 kHz and 4 kHz. Depending on the boundary conditions and the fixed geometry of the membrane, the physical properties, such as the density and the Young's modulus, must make it possible to adapt the first and second eigenfrequencies. If this membrane is made of steel, the first and second natural frequencies of vibration do not fulfill the above conditions optimally. In addition, a rapid depreciation is found, which is a disadvantage.
Généralement avec l'utilisation d'une membrane traditionnelle de rayonnement acoustique, il subsiste un problème de largeur de bande de fréquences. Dans le cas où la membrane acoustique doit équiper une boîte à musique, les fréquences à rayonner de manière efficace doivent s'étendre typiquement entre 1 kHz et 4 kHz. Dans le cas d'une montre à sonnerie à répétition minute, un réveil ou encore une alarme à quartz, d'excellents résultats peuvent être obtenus en amplifiant une seule fréquence dominante, accordée avec l'excitateur.Generally with the use of a traditional acoustic radiation membrane, there remains a problem of frequency bandwidth. In the case where the acoustic membrane is to equip a music box, the frequencies to radiate efficiently must typically range between 1 kHz and 4 kHz. In the case of a minute repeater watch, an alarm clock or a quartz alarm, excellent results can be obtained by amplifying a single dominant frequency, tuned with the exciter.
Dans une montre à sonnerie standard, qui est munie par exemple d'une membrane acoustique, cette membrane est prise en sandwich entre une partie de la carrure et le fond de la boîte de montre. Dans le cas d'une montre de luxe, le fond peut être réalisé dans un matériau précieux, tel que de l'or. Il peut se produire au contact de la membrane généralement en acier avec le fond en or, une différence de potentiel électro-chimique surtout dans un milieu humide. Cela est susceptible de favoriser la corrosion de ladite membrane au niveau du contact avec le fond en or, ce qui est un inconvénient. Il doit donc être également trouvé une matière inoxydable sans différence de potentiel avec l'or et dont l'amortissement interne est faible.In a standard bell watch, which is provided for example with an acoustic membrane, this membrane is sandwiched between a portion of the middle part and the bottom of the watch case. In the case of a luxury watch, the bottom can be made of a precious material, such as gold. It can occur in contact with the membrane usually made of steel with the gold bottom, an electrochemical potential difference especially in a humid environment. This is likely to promote the corrosion of said membrane at the contact with the gold background, which is a drawback. It must therefore also be found a stainless material with no potential difference with gold and whose internal damping is low.
L'invention a donc pour but de pallier aux inconvénients de l'état de la technique susmentionné en fournissant une membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie, réalisée de telle manière à obtenir une amplification la plus uniforme possible sur la bande de fréquences audibles, essentiellement dans l'intervalle de fréquences entre 1 kHz et 4 kHz.The purpose of the invention is therefore to overcome the drawbacks of the state of the art mentioned above by providing an acoustic radiation membrane for a music box or a striking watch, made in such a way as to obtain the most uniform amplification possible on the audible frequency band, essentially in the frequency range between 1 kHz and 4 kHz.
A cet effet, l'invention concerne une membrane de rayonnement acoustique comprenant les caractéristiques définies dans la revendication indépendante 1.For this purpose, the invention relates to an acoustic radiation membrane comprising the characteristics defined in
Des formes particulières de la membrane de rayonnement acoustique sont définies dans les revendications dépendantes 2 à 12.Particular forms of the acoustic radiation membrane are defined in
Un avantage de la membrane de rayonnement acoustique selon la présente invention, réside dans le fait qu'elle comprend sur au moins une première épaisseur plus petite que l'épaisseur totale de la membrane un certain nombre d'alvéoles ou de portions en saillie. Ces alvéoles ou portions en saillie sont de dimension et de forme, qui dépendent du type de matériau de la membrane et de la note ou des notes de musique à rayonner efficacement.An advantage of the acoustic radiation membrane according to the present invention lies in the fact that it comprises on at least a first thickness smaller than the total thickness of the membrane a number of cells or protruding portions. These cells or protruding portions are of size and shape, which depend on the type of material of the membrane and the note or notes of music to radiate effectively.
Avantageusement, la membrane de rayonnement acoustique est constituée d'au moins deux feuilles, dont une des feuilles à la première épaisseur, est munie d'un certain nombre d'alvéoles réparties de préférence sous forme de nid d'abeille. Chaque alvéole peut être de forme et de dimension dépendant de la note de musique à rayonner efficacement. Ainsi la première feuille peut comprendre un nombre d'alvéoles de dimension différente pour rayonner efficacement un nombre équivalent de notes de musique. Cela permet ainsi d'augmenter le niveau acoustique global, qui peut être perçu par un utilisateur de la boîte à musique ou de la montre à sonnerie dans laquelle est placée ladite membrane acoustique.Advantageously, the acoustic radiation membrane consists of at least two sheets, of which one of the sheets at the first thickness, is provided with a number of cells preferably distributed in the form of a honeycomb. Each cell can be shaped and dimension dependent on the musical note to radiate effectively. Thus, the first sheet may comprise a number of cells of different size to efficiently radiate an equivalent number of musical notes. This thus makes it possible to increase the overall acoustic level, which can be perceived by a user of the music box or ringing watch in which said acoustic membrane is placed.
Avantageusement, la membrane de rayonnement acoustique comprend une première feuille avec des alvéoles en nid d'abeille réparties uniformément, qui est fixée sur une seconde feuille sans alvéoles, et une troisième feuille avec des alvéoles notamment en nid d'abeille, fixée sur un côté opposé de la seconde feuille. La seconde feuille peut être une feuille en or, alors que les première et troisième feuilles peuvent être prévues en métal amorphe ou en verre métallique, ou également en or. L'agencement de plusieurs feuilles à alvéoles peut aussi permettre d'augmenter le nombre de fréquences propres dans la bande de fréquences audibles utile, à savoir entre 1 kHz et 4 kHz, afin également d'augmenter le niveau acoustique global. Avec une telle membrane, il est constaté un amortissement très faible, ce qui permet d'obtenir un très bon rendement sonore.Advantageously, the acoustic radiation membrane comprises a first sheet with honeycomb cells uniformly distributed, which is fixed on a second sheet without cells, and a third sheet with cells including honeycomb, fixed on one side opposite of the second sheet. The second sheet may be a gold leaf, while the first and third sheets may be provided in amorphous metal or metal glass, or also in gold. The arrangement of several cell sheets may also make it possible to increase the number of eigenfrequencies in the useful audible frequency band, namely between 1 kHz and 4 kHz, in order also to increase the overall acoustic level. With such a membrane, there is a very low damping, which allows to obtain a very good sound output.
A cet effet, l'invention concerne également une montre munie d'une membrane de rayonnement acoustique comprenant les caractéristiques définies dans la revendication indépendante 13.For this purpose, the invention also relates to a watch provided with an acoustic radiation membrane comprising the characteristics defined in the
Des formes particulières de la montre sont définies dans les revendications dépendantes 14 à 16.Particular shapes of the watch are defined in the
Les buts, avantages et caractéristiques de la membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie apparaîtront mieux dans la description suivante sur la base d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :
- la
figure 1 représente de manière simplifiée une vue tridimensionnelle en éclaté des diverses feuilles, qui composent la membrane de rayonnement acoustique selon l'invention, - la
figure 2 représente de manière simplifiée une vue tridimensionnelle des diverses feuilles assemblées, qui composent la membrane de rayonnement acoustique selon l'invention, et - la
figure 3 représente de manière simplifiée une coupe partielle d'une montre à sonnerie ou musicale, qui est munie d'une membrane acoustique selon l'invention.
- the
figure 1 represents in simplified manner an exploded three-dimensional view of the various sheets that make up the acoustic radiation membrane according to the invention, - the
figure 2 represents in a simplified manner a three-dimensional view of the various assembled sheets, which make up the acoustic radiation membrane according to the invention, and - the
figure 3 represents in a simplified manner a partial section of a bell or musical watch, which is provided with an acoustic membrane according to the invention.
Dans la description suivante, toutes les parties d'une boîte à musique, telle qu'une montre musicale, ou d'une montre à sonnerie, qui sont bien connues d'un homme du métier dans ce domaine technique, ne sont décrites que de manière simplifiée.In the following description, all the parts of a music box, such as a musical watch, or a striking watch, which are well known to those skilled in the art, are only described in detail. simplified way.
La
Les alvéoles 5, 6 de la première feuille 2 et de la troisième feuille 4 sont régulièrement espacées l'une de l'autre, et configurées sous forme de nid d'abeille avec six côtés identiques. Même s'il n'est représenté que trois alvéoles sur la
Dans le cas du rayonnement d'une note particulière avec une amplification uniforme dans la bande de fréquences audibles, toutes les alvéoles de la première feuille 2 sont de forme et de dimension identiques. La dimension est déterminée en fonction également de la matière de la première feuille 2 et de la seconde feuille 3. Plus la taille de l'alvéole est grande et plus la fréquence correspondante est grave, c'est-à-dire à basse fréquence. Pour une même taille d'alvéole, il est encore à préciser que plus l'épaisseur totale de la membrane 1 est importante, et plus la fréquence de la note rayonnée est élevée. L'épaisseur totale de la membrane est en principe inférieure ou égale à 1 mm.In the case of the radiation of a particular note with uniform amplification in the audible frequency band, all the cells of the
Par contre, dans le cas du rayonnement de plusieurs notes de musique par la membrane acoustique dans une montre musicale, il peut être prévu que chaque alvéole 5, 6 de la première feuille 2 et/ou de la troisième feuille 4 est dimensionnée pour chaque note particulière de musique. Ainsi il est défini un ensemble de mini-membranes chacune configurée pour un rayonnement efficace d'une note particulière d'une musique avec une amplification uniforme des premières fréquences propres entre 1 kHz et 4 kHz. Le nombre d'alvéoles dans la première et/ou la troisième feuilles 2, 4 est donc identique au nombre de notes de musique susceptible d'être générées dans la montre musicale. Pour rayonner entre 10 et 15 notes de manière efficace avec ladite membrane, il est nécessaire de réaliser entre 10 et 15 alvéoles.On the other hand, in the case of the radiation of several musical notes by the acoustic membrane in a musical watch, it can be provided that each
Les première, seconde et troisième feuilles 2, 3, 4 de la membrane acoustique 1 sont réalisées dans un matériau métallique, qui peut être différent pour chaque feuille ou identique, ou en verre métallique pour au moins une des trois feuilles. De préférence, la seconde feuille 3 sans alvéoles peut être réalisée en or ou en titane, et les première et troisième feuilles 2, 4 sont réalisées en métal amorphe ou en verre métallique. Il peut être concevable que toutes les feuilles sont conçues en or ou en titane pour définir une membrane de même matériau.The first, second and
Pour la réalisation de la membrane acoustique 1, il est préférable d'usiner tout d'abord les alvéoles 5, 6 sur la première feuille 2 et la troisième feuille 4 avant leur fixation par collage ou brasage sur la seconde feuille 3. Les alvéoles 5, 6 dans les première et troisième feuilles sont usinées par exemple par étampage ou par gravure.For the realization of the
La membrane de rayonnement acoustique 1 peut être composée de plus de deux feuilles à alvéoles pour définir un ensemble de feuilles à alvéoles, et d'au moins une feuille sans alvéoles insérée entre deux des feuilles à alvéoles. Toutes les feuilles sont collées ou brasées l'une sur l'autre. Chaque feuille peut avoir une même épaisseur par exemple de l'ordre de 0.1 mm ou une épaisseur différente l'une de l'autre, mais l'épaisseur totale de la membrane doit en principe être inférieure ou égale à 1 mm en fonction du matériau choisi. Chaque feuille à alvéoles peut ainsi être configurée pour le rayonnement d'une note déterminée parmi plusieurs notes à rayonner par la membrane avec une amplification uniforme.The
La
Il est encore à noter qu'en lieu et place de prévoir une première feuille 2 munie d'alvéoles 5 sur une première épaisseur de l'épaisseur totale de la membrane acoustique 1, il peut être prévu de réaliser des portions en saillie sur une première épaisseur de ladite membrane. Ces portions en saillie non représentées viennent directement de matière avec la base de la membrane sans alvéoles. Les portions peuvent également être configurées sous forme de nid d'abeille et être accordées chacune pour le rayonnement efficace d'une note particulière.It should also be noted that instead of providing a
La
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
Le mouvement horloger 20 comprend un mécanisme de sonnerie, non représenté. Ce mécanisme de sonnerie peut comprendre au moins un timbre monté sur un porte-timbre solidaire de la platine 24, et au moins un marteau monté rotatif sur la platine pour venir frapper ledit timbre dans des périodes déterminées. Le timbre généralement de forme circulaire entoure les diverses parties du mouvement horloger de la montre à sonnerie. Un tel mécanisme de sonnerie est prévu pour signaler une alarme programmée ou des répétitions minutes.The
Dans une forme d'exécution plus élaborée d'une montre musicale, le mécanisme de sonnerie peut comprendre 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 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 keyboard with a set of blades connected to a heel, which is attached to the
Dans cette forme d'exécution, la membrane acoustique 1 est en forme de cuvette, dont le bord supérieur 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, de préférence proche de 31 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 14 sur le fond 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
Le fond 15 est monté par des moyens connus et de manière amovible sur la carrure 14 avec une garniture d'étanchéité 19. 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. Dans le cas d'une montre mécanique à sonnerie 10, des aiguilles d'indication de l'heure, qui ne sont pas représentées, sont prévues sur le cadran, qui porte généralement des index horaires en périphérie.The bottom 15 is mounted by known means and removably on the
La partie centrale 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.The central portion of the acoustic membrane is not in contact with the
Lors du fonctionnement du mécanisme de sonnerie, la note ou les notes générées par ledit mécanisme de sonnerie sont transmises directement à la membrane 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 est composée de feuilles réalisées en or ou en titane ou en partie en métal amorphe, elle est susceptible de vibrer à plusieurs premières fréquences propres fonctions du nombre de notes prévues à rayonner. Ces premières fréquences propres sont situées de préférence dans la bande acoustique utile entre 1 et 4 kHz. Les secondes fréquences propres de vibration des notes sont par contre situées au-dessus de 4 kHz. Ceci est très avantageux étant donné que les secondes fréquences de vibration sont souvent destructrices de son. Ces fréquences propres voulues de vibration sonore de la membrane en partie en métal amorphe sont dépendantes des propriétés physiques, telles que la masse volumique et le module d'Young. De plus avec une telle membrane, il est constaté un amortissement très faible, ce qui procure un très bon rendement sonore de cette membrane acoustique 1.During operation of the striking mechanism, the note or notes generated by said striking mechanism are transmitted directly to the
Grâce au fait que cette membrane est composée de matériaux inoxydables, elle peut être montée sur un fond 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 membrane is composed of stainless materials, it can be mounted on a background for example of precious metal, such as gold. No electrochemical potential difference is thus found even in a humid environment, which means that no corrosion occurs in contact with the
Le verre métallique ou métal amorphe utilisé pour la réalisation d'au moins deux feuilles à alvéoles de la membrane peut être par exemple un alliage métallique à base de titane, zirconium et béryllium. Ainsi à titre d'exemple plus spécifique, l'alliage de métal amorphe peut comprendre 41% de zirconium, 14% de titane, 12% de cuivre, 10% de nickel et 23% de béryllium. Le module d'Young de cet alliage vaut 105 GPa et la limite d'élasticité vaut 1.9 GPa. L'alliage de métal amorphe peut également être constitué de 57.5 % de platine, de 14.7% de cuivre, de 5.3% de nickel et de 22.5% de phosphore. Le module d'Young de cet alliage vaut dans ce cas 98 GPa et la limite d'élasticité vaut 1.4 GPa.The metallic glass or amorphous metal used for the production of at least two cellular sheets of the membrane may for example be a metal alloy based on titanium, zirconium and beryllium. Thus, by way of a more specific example, the amorphous metal alloy may comprise 41% of zirconium, 14% of titanium, 12% of copper, 10% of nickel and 23% of beryllium. The Young's modulus of this alloy is 105 GPa and the elastic limit is 1.9 GPa. The amorphous metal alloy may also consist of 57.5% platinum, 14.7% copper, 5.3% nickel and 22.5% phosphorus. The Young's modulus of this alloy is in this case 98 GPa and the elastic limit is 1.4 GPa.
A partir de la description qui vient d'être faite, plusieurs variantes de réalisation de la membrane de rayonnement acoustique pour une boîte à musique ou une montre à sonnerie peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. La membrane acoustique peut être située dans la boîte de montre au niveau de la carrure avec une ouverture à travers la carrure pour le rayonnement sonore de la membrane acoustique en vibration. La membrane acoustique peut éventuellement se situer sur une partie extérieure de la boîte de montre, mais disposée au moins sur une ouverture du boîtier pour que la note ou les notes générées par le mécanisme de sonnerie puissent faire vibrer la membrane. Il peut être prévu plusieurs membranes acoustiques disposées à plusieurs endroits à l'intérieur de la boîte de montre ou superposées. Ces membranes acoustiques peuvent être réalisées avec un même nombre ou un nombre différent de feuilles à alvéoles.From the description that has just been given, several embodiments of the acoustic radiation membrane for a music box or a striking watch can be designed by those skilled in the art without departing from the scope of the invention defined by the claims. The acoustic membrane may be located in the watch case at the middle of the case with an opening through the caseband for the sound radiation of the acoustic membrane in vibration. The acoustic membrane may possibly be located on an outer portion of the watch case, but disposed at least on an opening of the housing so that the note or notes generated by the striking mechanism can vibrate the membrane. It can be provided several acoustic membranes arranged in several places inside the watch case or superimposed. These acoustic membranes can be made with the same number or a different number of cell sheets.
Claims (16)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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EP10193427.1A EP2461220B1 (en) | 2010-12-02 | 2010-12-02 | Acoustic membrane for a musical box or an alarm watch |
CH02023/10A CH704183A2 (en) | 2010-12-02 | 2010-12-02 | Acoustic radiation membrane for e.g. music watch, has cavities or projecting portions formed in form of honeycomb, where shape and dimensions of cavities are adapted based on type of material as well as notes to be radiated by membrane |
US13/283,149 US8638644B2 (en) | 2010-12-02 | 2011-10-27 | Acoustic radiating membrane for a music box or striking watch |
JP2011258257A JP5863416B2 (en) | 2010-12-02 | 2011-11-25 | The acoustic membrane of a music box or watch with a hammer |
CN201110396935.2A CN102540854B (en) | 2010-12-02 | 2011-12-02 | Acoustic membrane for a musical box or an alarm watch |
HK13100062.8A HK1172958A1 (en) | 2010-12-02 | 2013-01-03 | Acoustic radiating membrane for a music box or striking watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP10193427.1A EP2461220B1 (en) | 2010-12-02 | 2010-12-02 | Acoustic membrane for a musical box or an alarm watch |
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EP2461220A1 true EP2461220A1 (en) | 2012-06-06 |
EP2461220B1 EP2461220B1 (en) | 2019-11-06 |
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EP10193427.1A Active EP2461220B1 (en) | 2010-12-02 | 2010-12-02 | Acoustic membrane for a musical box or an alarm watch |
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US (1) | US8638644B2 (en) |
EP (1) | EP2461220B1 (en) |
JP (1) | JP5863416B2 (en) |
CN (1) | CN102540854B (en) |
CH (1) | CH704183A2 (en) |
HK (1) | HK1172958A1 (en) |
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US9164487B1 (en) | 2014-05-07 | 2015-10-20 | Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie | Striking watch |
EP3002749A1 (en) * | 2014-10-03 | 2016-04-06 | Montres Breguet SA | Keyboard for musical box |
EP3009894A1 (en) * | 2014-10-15 | 2016-04-20 | Montres Breguet SA | Arrangement with sound-projecting membranes for a chiming watch |
EP3457219A1 (en) * | 2017-09-14 | 2019-03-20 | The Swatch Group Research and Development Ltd | Acoustic radiation membrane, and chiming watch provided with the acoustic membrane |
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EP3404493B1 (en) * | 2010-03-16 | 2021-09-01 | Montres Breguet S.A. | Chiming watch provided with an acoustic membrane |
EP3009895B1 (en) * | 2014-10-15 | 2017-06-28 | Montres Breguet SA | Musical or chiming watch provided with a sound-projecting arrangement |
CH712161A2 (en) * | 2016-02-26 | 2017-08-31 | Montres Breguet Sa | Stamp, ring mechanism watch comprising the same and method of making the stamp. |
EP3835883A1 (en) * | 2019-12-11 | 2021-06-16 | The Swatch Group Research and Development Ltd | Arrangement for holding and vibration transmission of an acoustic radiation membrane in a watch case |
EP4113219A1 (en) * | 2021-06-29 | 2023-01-04 | Montres Breguet S.A. | Method for frequency tuning of an assembly of plates of a watch, and watch comprising the assembly of tuned plates |
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2011
- 2011-10-27 US US13/283,149 patent/US8638644B2/en active Active
- 2011-11-25 JP JP2011258257A patent/JP5863416B2/en active Active
- 2011-12-02 CN CN201110396935.2A patent/CN102540854B/en active Active
-
2013
- 2013-01-03 HK HK13100062.8A patent/HK1172958A1/en unknown
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
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US9417611B2 (en) | 2013-09-26 | 2016-08-16 | Montres Breguet Sa | Timepiece with improved sound level |
WO2015043905A1 (en) * | 2013-09-26 | 2015-04-02 | Montres Breguet Sa | Timepiece having an improved sound level |
EP2881807A1 (en) * | 2013-12-09 | 2015-06-10 | Montres Breguet SA | Acoustic dispersion membrane for a musical watch |
US9207645B2 (en) | 2013-12-09 | 2015-12-08 | Montres Breguet S.A. | Acoustic radiating membrane for a musical watch |
US9164487B1 (en) | 2014-05-07 | 2015-10-20 | Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie | Striking watch |
EP2942675A1 (en) | 2014-05-07 | 2015-11-11 | Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie | Chiming watch |
EP3002749A1 (en) * | 2014-10-03 | 2016-04-06 | Montres Breguet SA | Keyboard for musical box |
US9373316B2 (en) | 2014-10-03 | 2016-06-21 | Montres Breguet S.A. | Vibration plate for a music box |
EP3009894A1 (en) * | 2014-10-15 | 2016-04-20 | Montres Breguet SA | Arrangement with sound-projecting membranes for a chiming watch |
US9519271B2 (en) | 2014-10-15 | 2016-12-13 | Montres Breguet Sa | Acoustic radiating membrane arrangement for a striking watch |
EP3457219A1 (en) * | 2017-09-14 | 2019-03-20 | The Swatch Group Research and Development Ltd | Acoustic radiation membrane, and chiming watch provided with the acoustic membrane |
CN109507863A (en) * | 2017-09-14 | 2019-03-22 | 斯沃奇集团研究和开发有限公司 | Acoustic membrane and repeat watch equipped with the acoustic membrane |
US11360434B2 (en) | 2017-09-14 | 2022-06-14 | The Swatch Group Research And Development Ltd | Acoustic radiation membrane, and striking watch equipped with the acoustic membrane |
EP3457220B1 (en) * | 2017-09-14 | 2023-05-03 | The Swatch Group Research and Development Ltd | Acoustic radiation membrane, and chiming watch provided with the acoustic membrane |
CN109507863B (en) * | 2017-09-14 | 2024-03-26 | 斯沃奇集团研究和开发有限公司 | Acoustic radiation film and time signal meter equipped with same |
Also Published As
Publication number | Publication date |
---|---|
JP5863416B2 (en) | 2016-02-16 |
HK1172958A1 (en) | 2013-05-03 |
US20120140602A1 (en) | 2012-06-07 |
JP2012118067A (en) | 2012-06-21 |
CN102540854B (en) | 2014-07-09 |
CN102540854A (en) | 2012-07-04 |
EP2461220B1 (en) | 2019-11-06 |
CH704183A2 (en) | 2012-06-15 |
US8638644B2 (en) | 2014-01-28 |
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