EP2503417B1 - Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant - Google Patents

Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant Download PDF

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Publication number
EP2503417B1
EP2503417B1 EP11159275.4A EP11159275A EP2503417B1 EP 2503417 B1 EP2503417 B1 EP 2503417B1 EP 11159275 A EP11159275 A EP 11159275A EP 2503417 B1 EP2503417 B1 EP 2503417B1
Authority
EP
European Patent Office
Prior art keywords
membrane
back cover
watch
case
watch case
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.)
Active
Application number
EP11159275.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2503417A1 (fr
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/fr
Priority to CH00485/11A priority patent/CH704673A2/fr
Priority to US13/424,650 priority patent/US8770833B2/en
Priority to CN201210075493.6A priority patent/CN102692867B/zh
Priority to JP2012065121A priority patent/JP5616388B2/ja
Publication of EP2503417A1 publication Critical patent/EP2503417A1/fr
Priority to HK13103544.0A priority patent/HK1176692A1/zh
Application granted granted Critical
Publication of EP2503417B1 publication Critical patent/EP2503417B1/fr
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 10.
  • the invention also relates to a watch provided with a removable acoustic radiation membrane comprising the characteristics defined in the dependent claim 13.
  • 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 16.
  • 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 the 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.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
EP11159275.4A 2011-03-22 2011-03-22 Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant Active EP2503417B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP11159275.4A EP2503417B1 (fr) 2011-03-22 2011-03-22 Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant
CH00485/11A CH704673A2 (fr) 2011-03-22 2011-03-22 Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant.
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 (zh) 2011-03-22 2012-03-21 可移除声辐射膜,其组装方法,报时表套壳和音乐报时表
JP2012065121A JP5616388B2 (ja) 2011-03-22 2012-03-22 ミュージックウォッチ又は時報を打つウォッチのための着脱可能な音響放射膜及び同膜を含むウォッチ
HK13103544.0A HK1176692A1 (zh) 2011-03-22 2013-03-21 可移除聲輻射膜，其組裝方法，報時錶套殼和音樂報時錶

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11159275.4A EP2503417B1 (fr) 2011-03-22 2011-03-22 Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant

Publications (2)

Publication Number Publication Date
EP2503417A1 EP2503417A1 (fr) 2012-09-26
EP2503417B1 true EP2503417B1 (fr) 2016-03-16

Family

ID=44680986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11159275.4A Active EP2503417B1 (fr) 2011-03-22 2011-03-22 Membrane amovible de rayonnement acoustique pour une montre musicale ou à sonnerie, et montre la comprenant

Country Status (6)

Country Link
US (1) US8770833B2 (zh)
EP (1) EP2503417B1 (zh)
JP (1) JP5616388B2 (zh)
CN (1) CN102692867B (zh)
CH (1) CH704673A2 (zh)
HK (1) HK1176692A1 (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2400353A1 (fr) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Aiguille de pièce d'horlogerie
EP2853958A1 (fr) 2013-09-26 2015-04-01 Montres Breguet SA Pièce d'horlogerie à niveau acoustique amélioré
CH708956B1 (fr) * 2013-12-09 2021-08-31 Montres Breguet Sa Membrane de rayonnement acoustique pour une montre musicale.
EP2881807B1 (fr) 2013-12-09 2019-11-27 Montres Breguet SA Membrane de rayonnement acoustique pour une montre musicale
CN103713512B (zh) * 2013-12-25 2019-01-15 烟台北极星股份有限公司 一种机械音乐报时时钟机芯
JP6299319B2 (ja) * 2014-03-25 2018-03-28 日産自動車株式会社 自己位置算出装置及び自己位置算出方法
EP2942675B1 (fr) * 2014-05-07 2016-11-16 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Montre à sonnerie
EP3009894B1 (fr) * 2014-10-15 2017-11-29 Montres Breguet SA Agencement à membranes de rayonnement acoustique pour une montre à sonnerie
EP3009895B1 (fr) * 2014-10-15 2017-06-28 Montres Breguet SA Montre musicale ou à sonnerie munie d'un agencement à rayonnement acoustique
US10067475B2 (en) * 2016-01-27 2018-09-04 Seiko Instruments Inc. Timepiece
EP3537229B1 (fr) * 2018-03-05 2024-04-24 Montres Breguet S.A. Boîte de montre musicale
EP3644132B1 (fr) * 2018-10-26 2022-06-08 Blancpain SA Montre a sonnerie ou musicale munie d'au moins une membrane de rayonnement acoustique, et procédé de fabrication de la membrane
EP3696618A1 (fr) * 2019-02-14 2020-08-19 Montres Breguet S.A. Montre a sonnerie ou musicale avec agencement pour guider des ondes acoustiques
DE102019131403B4 (de) * 2019-11-21 2022-03-10 Jonas Horst Ziemert Informationsanzeigevorrichtung zum Tragen an einem Körperteil einer Person
EP3835883A1 (fr) * 2019-12-11 2021-06-16 The Swatch Group Research and Development Ltd Agencement de maintien et transmission vibratoire d'une membrane de rayonnement acoustique dans une boîte de montre

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH224250A (fr) * 1941-07-01 1942-11-15 Colomb Henri Boîte étanche pour pièces d'horlogerie.
CH285202A (fr) * 1949-08-19 1952-08-31 Tavannes Watch Co Sa Montre-réveil.
US2786326A (en) * 1951-07-05 1957-03-26 Junghans Geb Ag Alarm timepiece sounding device
CH1127360A4 (zh) * 1960-10-07 1963-11-15
CH567296A (zh) * 1972-03-29 1975-09-30
CH691334A5 (fr) * 1997-08-28 2001-06-29 Asulab Sa Appareillage susceptible d'être immergé et comprenant un transducteur sonore.
CH691335A5 (fr) * 1997-08-28 2001-06-29 Asulab Sa Appareil susceptible d'être immergé et comprenant un transducteur sonore.
US8322916B2 (en) * 2010-12-15 2012-12-04 Jeremy James Patt Thermal expansion compensator for liquid-filled watches

Also Published As

Publication number Publication date
US20120243389A1 (en) 2012-09-27
CN102692867A (zh) 2012-09-26
CN102692867B (zh) 2015-08-26
US8770833B2 (en) 2014-07-08
JP2012198211A (ja) 2012-10-18
HK1176692A1 (zh) 2013-08-02
CH704673A2 (fr) 2012-09-28
JP5616388B2 (ja) 2014-10-29
EP2503417A1 (fr) 2012-09-26

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