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EP2196869A1 - Watch case with striking device - Google Patents

Watch case with striking device Download PDF

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Publication number
EP2196869A1
EP2196869A1 EP08171540A EP08171540A EP2196869A1 EP 2196869 A1 EP2196869 A1 EP 2196869A1 EP 08171540 A EP08171540 A EP 08171540A EP 08171540 A EP08171540 A EP 08171540A EP 2196869 A1 EP2196869 A1 EP 2196869A1
Authority
EP
European Patent Office
Prior art keywords
stamp
watch case
watch
holder
milling
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
EP08171540A
Other languages
German (de)
French (fr)
Other versions
EP2196869B1 (en
Inventor
Marco Rochat
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.)
Blancpain SA
Original Assignee
Frederic Piguet 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 Frederic Piguet SA filed Critical Frederic Piguet SA
Priority to CH01966/08A priority Critical patent/CH700102A2/en
Priority to EP08171540A priority patent/EP2196869B1/en
Publication of EP2196869A1 publication Critical patent/EP2196869A1/en
Application granted granted Critical
Publication of EP2196869B1 publication Critical patent/EP2196869B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/08—Sounding bodies; Whistles; Musical apparatus
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/028—Sounding bodies; boxes used as sounding cases; fixation on or in the case
    • G—PHYSICS
    • 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

Definitions

  • the invention relates to a watch case in which a striking device can be placed.
  • the watch case includes a bottom, a middle and a glass, defining a housing for a watch movement.
  • a ringing device enclosed in the watch case includes at least one stamp attached to a stamp holder, and a hammer for striking the stamp.
  • the stamp used is usually a metal wire, which may be circular in shape. This wire may be arranged around the movement in the watch cage.
  • This stamp is fixed by one of its ends, for example by solder, to a stamp holder, which is itself generally secured to a watch plate. The other end of the stamp is usually free.
  • the vibration of the patch is produced by the impact generally near the stamp holder of at least one hammer of the striking device. The hammer is actuated at predetermined times to signal, for example, an alarm time or minute repetitions.
  • the traditional ringing device consists of individual elements, which must be mounted one after the other in particular on the watch plate, the mounting of such a striking device can be relatively long, which is a drawback.
  • Each element must also be manufactured independently of each other.
  • the patch must be configured to optimize the performance of the watch ring to more effectively transmit the vibrations. combination with the various other elements of the watch, including the watch movement. Better propagation of vibration is sought, which is often difficult to achieve with a traditional ringing device.
  • the invention therefore aims to overcome the disadvantages of the state of the art by providing a ring-type watch case easy to perform and likely to produce a rich sound with better propagation of vibration.
  • the invention relates to a striking device watch case cited above, which comprises the features defined in the independent claim 1.
  • An advantage of the watch case according to the invention is that the stamp and its stamp holder are made at the same time as the middle and / or the bottom of the watch case.
  • the stamp and the stamp holder come from material with either the middle part or the bottom to form a single piece with the middle part or the bottom of the watch case.
  • the invention also relates to a method of manufacturing a ring-type watch case, which comprises the characteristics defined in the independent claim 8.
  • An advantage of the manufacturing method of the watch case according to the invention lies in the fact that a single piece, which comprises the middle part or the bottom with the stamp and its stamp holder, is formed in the same stamping operation or molding.
  • a middle 2 of a watch case 1 which may include a striking device.
  • a bottom, not shown, of the watch case can be fixed on the side 2a of the middle part as shown in FIG. figure 1 , while a watch glass, not shown, can be mounted above a support portion 2b of a watch face, as shown in FIG. figure 2 .
  • the assembly constituted by the middle part 2, the bottom and the watch glass constitutes the watch box 1 to define a housing for a clock movement not shown, which is arranged under a watch dial, not shown.
  • the watch box 1 also comprises a stamp holder 4 and at least a first stamp 3 of the striking device, which come directly from the caseband 2 to form a single piece.
  • One of the ends of the first stamp is connected to the stamp holder, while the other end of the first stamp is free.
  • a second stamp 5 which comes from material with the first stamp 3, the stamp holder 4 and the middle part 2.
  • One end of the second stamp 5 is connected to the stamp holder 4 on a side opposite the first stamp 3, while the other end of the second stamp is free.
  • the stamp holder 4 and the first and second stamps 3 and 5 are made of the same material as the middle part 2 of the watch case.
  • This material may be preferably metal, such as steel, or a precious metal, such as gold, platinum, palladium or silver.
  • the main part of the caseband 2 is generally circular in shape as shown on the Figures 1 to 3 .
  • the general shape of this caseband can also be rectangular or of another form.
  • the wire of the first stamp 3 and the wire of the second stamp 5 describe a single winding in the form of a portion of a torus of angle comprised for example between 180 ° or less, and 360 °, preferably each of the order of 330 °.
  • the first stamp 3 and the second stamp 5 are arranged superimposed co-axially inside the middle of generally circular shape surrounding a part of the watch movement, and preferably of equivalent size.
  • the cross section of each stamp may be circular, of diameter less than 1 mm, for example of the order of 0.6 mm. However, this cross section of each stamp may also be preferably rectangular, which may facilitate its realization as explained below.
  • Each stamp 3 and 5 is manufactured so as not to come into contact with each other during shocks or vibrations to signal for example an alarm time.
  • each stamp 3 and 5 made may be sufficiently spaced from the inner surface of the middle part 2. This makes it possible to avoid any unintended tingling of the tone against the middle part, in particular during a shock of the watch case.
  • each stamp 3 and 5 When each stamp 3 and 5 is struck by a respective hammer of a ringing device, it produces a musical sound, which comprises a fundamental frequency (first harmonic), completed by one or more harmonics or by partials of higher frequency than the fundamental frequency.
  • a certain proportion of partials during the impact of the hammer (s) on the stamp (s) is audible in the frequency range from 1 kHz to 20 kHz. In this frequency range, the more the number of partials is important and the more the generated sound can be considered rich.
  • This type of stamp With a type of material chosen for the timbre used, it is possible to increase this richness of the sound by playing on the geometry of the timbre, that is to say by realizing for example a stamp of the cathedral type.
  • This type of stamp generally comprises two windings instead of a single winding around the movement of the watch. This can cause a problem of size in the case of the watch, as well as a difficulty in its realization in the middle part 2 of the watch box 1.
  • the stamp material is selected from precious metals, especially gold, it is possible to produce a cathedral type sound, this time with a single winding of a wire in the box of a watch and not two windings.
  • the acoustic intensity is improved by increasing the transmission coefficient to parts of the watch, located downstream of the stamp.
  • the quality of the sound produced by the patch connected directly to the middle part 2 by means of the stamp holder 4 can be improved with a better propagation of the vibrations towards the radiating parts of the watch .
  • At least one stamp 3 connected to a stamp holder 4 can be made in the middle part 2 of the watch case 1.
  • it may be done first of all a stamping operation of a preform of the middle part, or a molding operation.
  • the formed part which comprises the stamp 3 connected by the stamp holder 4 inside the main part of the caseband 2
  • the free end of the stamp be maintained by minus one bridge of material to the middle, and that the stamping operation is followed by milling in a machine tool to release the end of said stamp 3 and possibly tune said stamp.
  • each stamp is preferably rectangular following the stamping operation.
  • stamps Preferably for the realization of one or two stamps, it can be operated several milling operations or sawing following the initial stamping operation. After this stamping operation, it can be performed a first milling of the inner part of the middle part 2 of the watch case.
  • This first milling defines in particular the inner part of each stamp 3, 5 movement side while also taking into account the side of the bottom part of the stamps or the box 1 watch.
  • This first milling is followed by a second milling between the support portion 2b of the dial and the upper part of the stamps 3, 5 on the dial side.
  • This second milling is performed up to the inner surface of the main part of the middle part 2, and already providing a milling for the future free end of one of the stamps 3 with respect to the stamp holder 4.
  • a third milling or sawing using a saw mill is performed thereafter between the two stamps 3 and 5, if it is planned to make two stamps on each side of the stamp holder 4. Finally, a fourth milling is performed to release the outer portion of each stamp of the inner portion of the middle part 2, as well as to release each free end of the stamps 3 and 5. Each stamp can still be granted later if necessary.
  • the metal in the molten state is introduced into said mold, followed by cooling.
  • the box part 1, which comprises one or two stamps 3 and 5 connected via the stamp holder 4 inside the middle part, can thus be obtained directly after demolding.
  • Each stamp is made directly with a free end after a single molding step.
  • the cross section of each stamp can be both circular and rectangular by this molding operation. However, a milling operation can also be performed thereafter to grant the one or both stamps 3 and 5.
  • the stamp and the stamp holder can come from material with the bottom of the watch case to form a single piece. However in this case, it must be provided yet another glass on the bottom of the watch case. It can be provided two differently sized stamps obtained in the middle or the bottom of the watch case to each produce a particular sound when striking a respective hammer. It can be provided several stamp holder for one or two stamps.
  • the middle part or the bottom of the watch case, which comprises at least one stamp connected to a stamp holder, can also be obtained by a sintering operation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Adornments (AREA)

Abstract

The watch case (1) has a glass defining a housing for a clock movement, and a striking device provided with gongs (3, 5) fixed to a sounding spring holder (4). A hammer strikes the gongs. The gongs and the spring holder are made of a material similar to that of a middle (2) or a back cover of the watch case and directly associated with the middle or the back cover to form a single piece, where the material is a precious metal such as gold or platinum, or a precious metal alloy. An independent claim is also included for a method for fabricating a watch case.

Description

L'invention concerne une boîte de montre dans laquelle peut être placé un dispositif de sonnerie. La boîte de montre comprend notamment un fond, une carrure et un verre, définissant un logement pour un mouvement de montre. Un dispositif de sonnerie enfermé dans la boîte de montre, comprend au moins un timbre fixé à un porte-timbre, et un marteau pour frapper le timbre.The invention relates to a watch case in which a striking device can be placed. The watch case includes a bottom, a middle and a glass, defining a housing for a watch movement. A ringing device enclosed in the watch case includes at least one stamp attached to a stamp holder, and a hammer for striking the stamp.

Dans le domaine de l'horlogerie, une architecture traditionnelle est utilisée pour réaliser des mouvements, qui sont munis d'un dispositif de sonnerie, notamment pour des répétitions minutes ou pour une alarme. Pour un dispositif de sonnerie traditionnel, le timbre utilisé est généralement un fil métallique, qui peut être de forme circulaire. Ce fil métallique peut être disposé autour du mouvement, dans la cage de montre. Ce timbre est fixé par une de ses extrémités, par exemple par brasure, à un porte-timbre, qui est lui-même généralement solidaire d'une platine de montre. L'autre extrémité du timbre est généralement libre. La vibration du timbre est produite par l'impact généralement à proximité du porte-timbre d'au moins un marteau du dispositif de sonnerie. Le marteau est actionné à des moments prédéterminés pour signaler par exemple une heure d'alarme ou des répétitions minutes.In the field of watchmaking, a traditional architecture is used to perform movements, which are provided with a ringing device, especially for minute repetitions or for an alarm. For a traditional ringing device, the stamp used is usually a metal wire, which may be circular in shape. This wire may be arranged around the movement in the watch cage. This stamp is fixed by one of its ends, for example by solder, to a stamp holder, which is itself generally secured to a watch plate. The other end of the stamp is usually free. The vibration of the patch is produced by the impact generally near the stamp holder of at least one hammer of the striking device. The hammer is actuated at predetermined times to signal, for example, an alarm time or minute repetitions.

Comme le dispositif de sonnerie traditionnel est constitué d'éléments individuels, qui doivent être montés les uns après les autres notamment sur la platine de montre, le montage d'un tel dispositif de sonnerie peut être relativement long, ce qui constitue un inconvénient. Chaque élément doit également être fabriqué indépendamment les uns des autres. De plus, le timbre doit être configuré pour optimiser le rendement de la sonnerie de montre de manière à transmettre plus efficacement les vibrations en combinaison avec les divers autres éléments de la montre, notamment du mouvement de montre. Une meilleure propagation des vibrations est recherchée, ce qui est souvent difficile à atteindre avec un dispositif de sonnerie traditionnel.As the traditional ringing device consists of individual elements, which must be mounted one after the other in particular on the watch plate, the mounting of such a striking device can be relatively long, which is a drawback. Each element must also be manufactured independently of each other. In addition, the patch must be configured to optimize the performance of the watch ring to more effectively transmit the vibrations. combination with the various other elements of the watch, including the watch movement. Better propagation of vibration is sought, which is often difficult to achieve with a traditional ringing device.

L'invention a donc pour but de pallier aux inconvénients de l'état de la technique en fournissant une boîte de montre à dispositif de sonnerie facile à réaliser et susceptible de produire un son riche avec une meilleure propagation des vibrations.The invention therefore aims to overcome the disadvantages of the state of the art by providing a ring-type watch case easy to perform and likely to produce a rich sound with better propagation of vibration.

A cet effet, l'invention concerne une boîte de montre à dispositif de sonnerie cité ci-devant, qui comprend les caractéristiques définies dans la revendication indépendante 1.For this purpose, the invention relates to a striking device watch case cited above, which comprises the features defined in the independent claim 1.

Des formes d'exécution particulières de la boîte de montre sont définies dans les revendications dépendantes 2 à 7.Particular embodiments of the watch case are defined in dependent claims 2 to 7.

Un avantage de la boîte de montre selon l'invention est que le timbre et son porte-timbre sont réalisés en même temps que la carrure et/ou le fond de la boîte de montre. Le timbre et le porte-timbre viennent de matière avec soit la carrure, soit le fond afin de former une seule pièce avec la carrure ou le fond de la boîte de montre.An advantage of the watch case according to the invention is that the stamp and its stamp holder are made at the same time as the middle and / or the bottom of the watch case. The stamp and the stamp holder come from material with either the middle part or the bottom to form a single piece with the middle part or the bottom of the watch case.

A cet effet, l'invention concerne également un procédé de fabrication d'une boîte de montre à dispositif de sonnerie, qui comprend les caractéristiques définies dans la revendication indépendante 8.To this end, the invention also relates to a method of manufacturing a ring-type watch case, which comprises the characteristics defined in the independent claim 8.

Des étapes de fabrication particulières sont définies dans les revendications dépendantes 9 à 13.Particular manufacturing steps are defined in dependent claims 9 to 13.

Un avantage du procédé de fabrication de la boîte de montre selon l'invention réside dans le fait qu'une seule pièce, qui comprend la carrure ou le fond avec le timbre et son porte-timbre, est formée dans une même opération d'estampage ou de moulage.An advantage of the manufacturing method of the watch case according to the invention lies in the fact that a single piece, which comprises the middle part or the bottom with the stamp and its stamp holder, is formed in the same stamping operation or molding.

Les buts, avantages et caractéristiques de la boîte de montre à dispositif de sonnerie, et son procédé de fabrication apparaîtront mieux dans la description suivante notamment en regard des dessins sur lesquels :

  • la figure 1 représente une vue tridimensionnelle de dessous d'une carrure d'une boîte de montre à dispositif de sonnerie selon l'invention,
  • la figure 2 représente une vue tridimensionnelle de dessus d'une carrure d'une boîte de montre à dispositif de sonnerie selon l'invention, et
  • la figure 3 représente une vue en plan du dessous d'une carrure d'une boîte de montre à dispositif de sonnerie selon l'invention.
The purposes, advantages and characteristics of the ring-type watch case and its manufacturing process will become more apparent in the following description in particular with reference to the drawings in which:
  • the figure 1 represents a three-dimensional view from below of a middle part of a ring-type watch case according to the invention,
  • the figure 2 represents a three-dimensional view from above of a middle part of a ring-type watch case according to the invention, and
  • the figure 3 represents a bottom plan view of a middle part of a ring-type watch case according to the invention.

Dans la description suivante, toutes les parties d'un dispositif de sonnerie, qui comprend un timbre et un marteau pour frapper le timbre, qui sont bien connues dans ce domaine technique, ne seront décrites que sommairement.In the following description, all parts of a striking device, which includes a stamp and hammer to strike the stamp, which are well known in this technical field, will be described only briefly.

Aux figures 1 à 3, il est représenté une carrure 2 d'une boîte de montre 1, susceptible de comprendre un dispositif de sonnerie. Un fond, non représenté, de la boîte de montre peut être fixé sur le côté 2a de la carrure comme montré à la figure 1, alors qu'un verre de montre, non représenté, peut être monté au-dessus d'une portion support 2b d'un cadran de montre, comme montré à la figure 2. L'ensemble constitué par la carrure 2, le fond et le verre de montre constitue la boîte 1 de montre pour définir un logement pour un mouvement horloger non représenté, qui est disposé sous un cadran de montre, non représenté.To the Figures 1 to 3 , there is shown a middle 2 of a watch case 1, which may include a striking device. A bottom, not shown, of the watch case can be fixed on the side 2a of the middle part as shown in FIG. figure 1 , while a watch glass, not shown, can be mounted above a support portion 2b of a watch face, as shown in FIG. figure 2 . The assembly constituted by the middle part 2, the bottom and the watch glass constitutes the watch box 1 to define a housing for a clock movement not shown, which is arranged under a watch dial, not shown.

La boîte 1 de montre comprend également un porte-timbre 4 et au moins un premier timbre 3 du dispositif de sonnerie, qui viennent de matière directement avec la carrure 2 pour ne former qu'une seule pièce. Une des extrémités du premier timbre est reliée au porte-timbre, alors que l'autre extrémité du premier timbre est libre. Dans cette forme d'exécution, il est prévu également un second timbre 5, qui vient de matière avec le premier timbre 3, le porte-timbre 4 et la carrure 2. Une des extrémités de ce second timbre 5 est reliée au porte-timbre 4 sur un côté opposé au premier timbre 3, alors que l'autre extrémité du second timbre est libre.The watch box 1 also comprises a stamp holder 4 and at least a first stamp 3 of the striking device, which come directly from the caseband 2 to form a single piece. One of the ends of the first stamp is connected to the stamp holder, while the other end of the first stamp is free. In this embodiment, there is also provided a second stamp 5, which comes from material with the first stamp 3, the stamp holder 4 and the middle part 2. One end of the second stamp 5 is connected to the stamp holder 4 on a side opposite the first stamp 3, while the other end of the second stamp is free.

Le porte-timbre 4 et le premier et le second timbres 3 et 5 sont donc réalisés dans un même matériau que la carrure 2 de la boîte de montre. Ce matériau peut être de préférence métallique, tel que de l'acier, ou un métal précieux, tel que de l'or, du platine, du palladium ou de l'argent.The stamp holder 4 and the first and second stamps 3 and 5 are made of the same material as the middle part 2 of the watch case. This material may be preferably metal, such as steel, or a precious metal, such as gold, platinum, palladium or silver.

La partie principale de la carrure 2 est de forme générale circulaire comme montrée sur les figures 1 à 3. Cependant, la forme générale de cette carrure peut également être rectangulaire ou d'une autre forme. Dans la partie intérieure de la carrure de forme générale circulaire, le fil métallique du premier timbre 3 et le fil métallique du second timbre 5 décrivent un seul enroulement sous la forme d'une portion de tore d'angle compris par exemple entre 180° ou moins, et 360°, de préférence chacun de l'ordre de 330°. Le premier timbre 3 et le second timbre 5 sont disposés superposés co-axialement à l'intérieur de la carrure de forme générale circulaire entourant une partie du mouvement horloger, et de préférence de dimension équivalente. La section transversale de chaque timbre peut être circulaire, de diamètre inférieur à 1 mm, par exemple de l'ordre de 0.6 mm. Cependant, cette section transversale de chaque timbre peut aussi être de préférence rectangulaire, ce qui peut faciliter sa réalisation comme expliquée ci-après.The main part of the caseband 2 is generally circular in shape as shown on the Figures 1 to 3 . However, the general shape of this caseband can also be rectangular or of another form. In the inner part of the generally circular middle part, the wire of the first stamp 3 and the wire of the second stamp 5 describe a single winding in the form of a portion of a torus of angle comprised for example between 180 ° or less, and 360 °, preferably each of the order of 330 °. The first stamp 3 and the second stamp 5 are arranged superimposed co-axially inside the middle of generally circular shape surrounding a part of the watch movement, and preferably of equivalent size. The cross section of each stamp may be circular, of diameter less than 1 mm, for example of the order of 0.6 mm. However, this cross section of each stamp may also be preferably rectangular, which may facilitate its realization as explained below.

Chaque timbre 3 et 5 est fabriqué de manière à ne pas venir en contact l'un de l'autre lors de chocs ou de vibrations pour signaler par exemple une heure d'alarme. De plus chaque timbre 3 et 5 réalisé peut être suffisamment espacé de la surface intérieure de la carrure 2. Ceci permet d'éviter tout tintement involontaire du timbre contre la carrure notamment lors d'un choc de la boîte de montre.Each stamp 3 and 5 is manufactured so as not to come into contact with each other during shocks or vibrations to signal for example an alarm time. In addition, each stamp 3 and 5 made may be sufficiently spaced from the inner surface of the middle part 2. This makes it possible to avoid any unintended tingling of the tone against the middle part, in particular during a shock of the watch case.

Lorsque chaque timbre 3 et 5 est frappé par un marteau respectif d'un dispositif de sonnerie, il produit un son musical, qui comprend une fréquence fondamentale (premier harmonique), complétée par un ou plusieurs harmoniques ou par des partiels de fréquence supérieure à la fréquence fondamentale. Une certaine proportion de partiels lors de l'impact du ou des marteaux sur le ou les timbres est audible dans la gamme de fréquences de 1 kHz à 20 kHz. Dans cette gamme de fréquences, plus le nombre de partiels est important et plus le son généré peut être considéré comme riche. Avec un type de matériau choisi pour le timbre utilisé, il n'est possible d'augmenter cette richesse du son qu'en jouant sur la géométrie du timbre, c'est-à-dire en réalisant par exemple un timbre du type cathédrale. Ce type de timbre comprend généralement deux enroulements au lieu d'un seul enroulement autour du mouvement de la montre. Ceci peut causer un problème d'encombrement dans le boîtier de la montre, ainsi qu'une difficulté lors de sa réalisation dans la carrure 2 de la boîte 1 de montre.When each stamp 3 and 5 is struck by a respective hammer of a ringing device, it produces a musical sound, which comprises a fundamental frequency (first harmonic), completed by one or more harmonics or by partials of higher frequency than the fundamental frequency. A certain proportion of partials during the impact of the hammer (s) on the stamp (s) is audible in the frequency range from 1 kHz to 20 kHz. In this frequency range, the more the number of partials is important and the more the generated sound can be considered rich. With a type of material chosen for the timbre used, it is possible to increase this richness of the sound by playing on the geometry of the timbre, that is to say by realizing for example a stamp of the cathedral type. This type of stamp generally comprises two windings instead of a single winding around the movement of the watch. This can cause a problem of size in the case of the watch, as well as a difficulty in its realization in the middle part 2 of the watch box 1.

Si le matériau du timbre est choisi parmi les métaux précieux, notamment en or, il est possible de produire un son de type cathédrale, avec cette fois un seul enroulement d'un fil métallique dans la boîte d'une montre et non deux enroulements. L'intensité acoustique est améliorée grâce à l'augmentation du coefficient de transmission vers des pièces de la montre, situées en aval du timbre. Avec un timbre 3 et 5 en métal précieux, la qualité du son produit par le timbre relié directement à la carrure 2 par l'intermédiaire du porte-timbre 4, peut être améliorée avec une meilleure propagation des vibrations vers des parties rayonnantes de la montre.If the stamp material is selected from precious metals, especially gold, it is possible to produce a cathedral type sound, this time with a single winding of a wire in the box of a watch and not two windings. The acoustic intensity is improved by increasing the transmission coefficient to parts of the watch, located downstream of the stamp. With a stamp 3 and 5 of precious metal, the quality of the sound produced by the patch connected directly to the middle part 2 by means of the stamp holder 4, can be improved with a better propagation of the vibrations towards the radiating parts of the watch .

Le procédé de fabrication de la boîte de montre de manière à réaliser un ou plusieurs timbres reliés à un ou plusieurs porte-timbre peut être décrit maintenant. De préférence au moins un timbre 3 relié à un porte-timbre 4 peut être réalisé dans la carrure 2 de la boîte 1 de montre. Pour ce faire en fonction du type de matériau utilisé ou de la forme à obtenir, il peut être effectué tout d'abord une opération d'estampage d'une préforme de la carrure, ou une opération de moulage.The manufacturing method of the watch case so as to make one or more stamps connected to one or more stamp holder can be described now. Preferably at least one stamp 3 connected to a stamp holder 4 can be made in the middle part 2 of the watch case 1. To do this depending on the type of material used or the shape to be obtained, it may be done first of all a stamping operation of a preform of the middle part, or a molding operation.

Dans le cas d'une opération d'estampage d'une préforme de carrure, la pièce formée, qui comprend le timbre 3 relié par le porte-timbre 4 à l'intérieur de la partie principale de la carrure 2, peut être obtenue en une seule étape dans une matrice d'une machine d'estampage. Toutefois, il peut être préféré que l'extrémité libre du timbre soit maintenue par au moins un pont de matière à la carrure, et que l'opération d'estampage soit suivie par un fraisage dans une machine-outil pour libérer l'extrémité dudit timbre 3 et éventuellement accorder ledit timbre.In the case of a stamping operation of a middle preform, the formed part, which comprises the stamp 3 connected by the stamp holder 4 inside the main part of the caseband 2, can be obtained by a single step in a die of a stamping machine. However, it may be preferred that the free end of the stamp be maintained by minus one bridge of material to the middle, and that the stamping operation is followed by milling in a machine tool to release the end of said stamp 3 and possibly tune said stamp.

S'il est prévu de réaliser deux timbres 3 et 5, dont une extrémité est reliée à un même porte-timbre 4, un pont de matière relie normalement les deux timbres, ainsi que les timbres avec la partie intérieure de la carrure. Dans ce cas, un fraisage ou sciage dans une machine-outil doit être effectué pour séparer les deux timbres et leur lien à la carrure. La section transversale de chaque timbre est de préférence rectangulaire suite à l'opération d'estampage.If it is planned to make two stamps 3 and 5, one end of which is connected to the same stamp holder 4, a bridge of material normally connects the two stamps, as well as the stamps with the inner part of the middle part. In this case, a milling or sawing in a machine tool must be done to separate the two stamps and their link to the caseband. The cross section of each stamp is preferably rectangular following the stamping operation.

De préférence pour la réalisation d'un ou deux timbres, il peut être opéré plusieurs opérations de fraisage ou sciage suite à l'opération initiale d'estampage. Après cette opération d'estampage, il peut être effectué un premier fraisage de la partie intérieure de la carrure 2 de la boîte de montre. Ce premier fraisage définit notamment la partie intérieure de chaque timbre 3, 5 côté mouvement tout en tenant compte également de la partie côté fond du ou des timbres de la boîte 1 de montre.Preferably for the realization of one or two stamps, it can be operated several milling operations or sawing following the initial stamping operation. After this stamping operation, it can be performed a first milling of the inner part of the middle part 2 of the watch case. This first milling defines in particular the inner part of each stamp 3, 5 movement side while also taking into account the side of the bottom part of the stamps or the box 1 watch.

Ce premier fraisage est suivi d'un second fraisage entre la portion support 2b du cadran et la partie supérieure du ou des timbres 3, 5 côté cadran. Ce second fraisage est effectué jusqu'à la surface intérieure de la partie principale de la carrure 2, et en prévoyant déjà un fraisage pour la future extrémité libre d'un des timbres 3 par rapport au porte-timbre 4.This first milling is followed by a second milling between the support portion 2b of the dial and the upper part of the stamps 3, 5 on the dial side. This second milling is performed up to the inner surface of the main part of the middle part 2, and already providing a milling for the future free end of one of the stamps 3 with respect to the stamp holder 4.

Un troisième fraisage ou sciage à l'aide d'une fraise scie est effectuée par la suite entre les deux timbres 3 et 5, s'il est prévu de réaliser deux timbres de chaque côté du porte-timbre 4. Finalement, un quatrième fraisage est effectué pour libérer la partie extérieure de chaque timbre de la partie intérieure de la carrure 2, ainsi que pour libérer chaque extrémité libre des timbres 3 et 5. Chaque timbre peut encore être accordé par la suite si besoin est.A third milling or sawing using a saw mill is performed thereafter between the two stamps 3 and 5, if it is planned to make two stamps on each side of the stamp holder 4. Finally, a fourth milling is performed to release the outer portion of each stamp of the inner portion of the middle part 2, as well as to release each free end of the stamps 3 and 5. Each stamp can still be granted later if necessary.

Dans le cas d'une opération de moulage dans un moule en au moins deux parties, le métal à l'état fondu est introduit dans ledit moule, suivi par un refroidissement. La pièce de boîte 1, qui comprend un ou deux timbres 3 et 5 reliés par l'intermédiaire du porte-timbre 4 à l'intérieur de la carrure, peut ainsi être obtenue directement après démoulage. Chaque timbre est réalisé directement avec une extrémité libre après une seule étape de moulage. La section transversale de chaque timbre peut aussi bien être circulaire que rectangulaire par cette opération de moulage. Toutefois, une opération de fraisage peut également être effectuée par la suite pour accorder le ou les deux timbres 3 et 5.In the case of a molding operation in a mold in at least two parts, the metal in the molten state is introduced into said mold, followed by cooling. The box part 1, which comprises one or two stamps 3 and 5 connected via the stamp holder 4 inside the middle part, can thus be obtained directly after demolding. Each stamp is made directly with a free end after a single molding step. The cross section of each stamp can be both circular and rectangular by this molding operation. However, a milling operation can also be performed thereafter to grant the one or both stamps 3 and 5.

A partir de la description qui vient d'être faite, plusieurs variantes de la boîte de montre à dispositif de sonnerie peuvent être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. Le timbre et le porte-timbre peuvent venir de matière avec le fond de la boîte de montre pour former une seule pièce. Cependant dans ce cas, il doit être prévu encore un verre supplémentaire sur le fond de la boîte de montre. Il peut être prévu deux timbres de dimension différente obtenus dans la carrure ou le fond de la boîte de montre pour produire chacun un son particulier lors de la frappe d'un marteau respectif. Il peut être prévu plusieurs porte-timbre pour un ou deux timbres. La carrure ou le fond de la boîte de montre, qui comprend au moins un timbre relié à un porte-timbre, peut aussi être obtenu par une opération de frittage.From the description that has just been given, several variants of the ring device watch case may be designed by the skilled person without departing from the scope of the invention defined by the claims. The stamp and the stamp holder can come from material with the bottom of the watch case to form a single piece. However in this case, it must be provided yet another glass on the bottom of the watch case. It can be provided two differently sized stamps obtained in the middle or the bottom of the watch case to each produce a particular sound when striking a respective hammer. It can be provided several stamp holder for one or two stamps. The middle part or the bottom of the watch case, which comprises at least one stamp connected to a stamp holder, can also be obtained by a sintering operation.

Claims (13)

Boîte de montre (1) comprenant une carrure (2), un fond et un verre définissant un logement pour un mouvement horloger et un dispositif de sonnerie muni d'au moins un timbre (3, 5) fixé à un porte-timbre (4), et un marteau pour frapper le timbre, caractérisée en ce que le timbre et le porte-timbre viennent de matière directement avec la carrure ou le fond de la boîte de montre pour former une seule pièce.Watch case (1) comprising a middle part (2), a bottom and a glass defining a housing for a watch movement and a striking device provided with at least one stamp (3, 5) attached to a stamp holder (4 ), and a hammer to strike the stamp, characterized in that the stamp and the stamp holder come directly from the caseband or the bottom of the watch case to form a single piece. Boîte de montre (1) selon la revendication 1, caractérisée en ce que le matériau utilisé pour réaliser la boîte de montre avec le timbre et le porte-timbre, est un métal précieux, tel que de l'or ou du platine, ou un alliage de métaux précieux.Watch case (1) according to claim 1, characterized in that the material used to make the watch case with the stamp and the stamp holder, is a precious metal, such as gold or platinum, or a alloy of precious metals. Boîte de montre (1) selon l'une des revendications 1 et 2, caractérisée en ce que le timbre (3) est maintenu par une de ses extrémités au porte-timbre (4), alors que l'autre extrémité est libre, une partie dudit timbre définissant une portion de cercle d'angle compris entre 180° et 360° pour être disposé autour d'un mouvement de la montre à l'intérieur de la boîte de montre.Watch case (1) according to one of claims 1 and 2, characterized in that the stamp (3) is held by one of its ends to the stamp holder (4), while the other end is free, a part of said stamp defining an angle circle portion of between 180 ° and 360 ° to be arranged around a movement of the watch inside the watch case. Boîte de montre (1) selon l'une des revendications 1 à 3, caractérisée en ce que le timbre (3) avec le porte-timbre (4) sont reliés à la partie intérieure de la carrure (2).Watch case (1) according to one of claims 1 to 3, characterized in that the stamp (3) with the stamp holder (4) are connected to the inner part of the middle part (2). Boîte de montre (1) selon l'une des revendications 1 à 4, caractérisée en ce que deux timbres (3, 5) reliés à un même porte-timbre (4) viennent de matière directement avec la carrure (2) ou le fond de la boîte de montre.Watch case (1) according to one of claims 1 to 4, characterized in that two stamps (3, 5) connected to the same stamp holder (4) come directly from the case (2) or the bottom of the watch box. Boîte de montre (1) selon la revendication 5, caractérisée en ce qu'une extrémité du premier timbre et une extrémité du second timbre sont reliés chacun sur deux côtés opposés du porte-timbre, alors que l'autre extrémité de chaque timbre est libre, et en ce que chaque timbre définit une portion de cercle d'angle compris entre 180° et 360° pour être disposé autour d'un mouvement de la montre à l'intérieur de la boîte de montre.Watch case (1) according to claim 5, characterized in that one end of the first stamp and one end of the second stamp are each connected to two opposite sides of the stamp holder, while the other end of each stamp is free. , and in that each stamp defines a portion of an angle circle between 180 ° and 360 ° to be arranged around a movement of the watch inside the watch case. Boîte de montre (1) selon l'une des revendications 5 et 6, caractérisée en ce que les deux timbres sont disposés superposés co-axialement à l'intérieur de la carrure (2) sans contact l'un avec l'autre.Watch case (1) according to one of claims 5 and 6, characterized in that the two stamps are arranged superimposed co-axially inside the middle part (2) without contact with each other. Procédé de fabrication d'une boîte de montre (1) à dispositif de sonnerie selon l'une des revendications précédentes, caractérisé en ce qu'une seule pièce est formée avec la carrure (2) ou le fond de la boîte, et au moins un timbre et un porte-timbre suite à une opération d'estampage d'une préforme ou de moulage de la pièce dans un moule.A method of manufacturing a watch case (1) with a striking device according to one of the preceding claims, characterized in that one piece is formed with the middle part (2) or the bottom of the box, and at least a stamp and a stamp holder following an operation of stamping a preform or molding the piece in a mold. Procédé de fabrication d'une boîte de montre (1) selon la revendication 8, caractérisé en ce qu'il comprend les étapes consistant à : - estamper une préforme de carrure (2) pour obtenir un ou deux timbres (3, 5), dont une extrémité de chaque timbre est reliée à un porte-timbre (4), alors qu'au moins l'autre extrémité de chaque timbre est reliée par un pont de matière à l'intérieur d'une partie principale de la carrure, et - fraiser ou scier au moins le pont de matière maintenant chaque timbre pour libérer leur extrémité. A method of manufacturing a watch case (1) according to claim 8, characterized in that it comprises the steps of: - stamping a preform of the middle (2) to obtain one or two stamps (3, 5), one end of each stamp is connected to a stamp holder (4), while at least the other end of each stamp is connected by a material bridge inside a main part of the caseband, and - Milling or sawing at least the material bridge now each stamp to release their end. Procédé de fabrication d'une boîte de montre (1) selon la revendication 9, caractérisé en ce qu'un fraisage subséquent est effectué pour accorder chaque timbre.A method of manufacturing a watch case (1) according to claim 9, characterized in that a subsequent milling is performed to match each stamp. Procédé de fabrication d'une boîte de montre (1) selon la revendication 8, caractérisé en ce qu'il comprend les étapes consistant à : a) estamper une préforme de carrure (2) avec une portion intérieure prévue pour réaliser au moins un timbre (3, 5) relié à au moins un porte-timbre (4), b) fraiser la partie intérieure de la carrure (2) de la boîte de montre pour définir la partie intérieure du timbre (3) côté mouvement, et c) fraiser la partie extérieure du timbre (3) pour libérer le timbre maintenu au porte-timbre (4), de la partie intérieure de la carrure (2), ainsi que pour libérer l'extrémité libre du timbre. A method of manufacturing a watch case (1) according to claim 8, characterized in that it comprises the steps of: a) stamping a preform of middle (2) with an inner portion provided to achieve at least one stamp (3, 5) connected to at least one stamp holder (4), b) milling the inner part of the middle part (2) of the watch case to define the inner part of the stamp (3) movement side, and c) mill the outer portion of the stamp (3) to release the stamp held in the stamp holder (4), the inner part of the middle part (2), and to release the free end of the stamp. Procédé de fabrication d'une boîte de montre (1) selon la revendication 11, caractérisé en ce qu'il comprend également une étape d) entre l'étape b) et c), consistant à fraiser entre une portion support (2b) d'un cadran de montre et une partie supérieure du timbre (3) côté cadran, ce fraisage étant effectué jusqu'à la surface intérieure de la partie principale de la carrure (2).A method of manufacturing a watch case (1) according to claim 11, characterized in that it also comprises a step d) between step b) and c), consisting of milling between a support portion (2b) of a watch dial and an upper part of the stamp (3) on the dial side, this milling being carried out to the inner surface of the main part of the caseband (2). Procédé de fabrication d'une boîte de montre (1) selon l'une des revendications 11 et 12, pour lequel deux timbres (3, 5) sont réalisés, caractérisé en ce qu'entre l'étape d) et l'étape c) ou entre l'étape b) et l'étape c), il est effectué un fraisage ou sciage entre les deux timbres (3, 5) de chaque côté d'un porte-timbre (4), et en ce qu'à l'étape c), il est effectué un fraisage pour libérer la partie extérieure de chaque timbre de la partie intérieure de la carrure (2), ainsi que pour libérer chaque extrémité libre des timbres (3, 5).A method of manufacturing a watch case (1) according to one of claims 11 and 12, wherein two stamps (3, 5) are made, characterized in that between step d) and step c ) or between step b) and step c), a milling or sawing is carried out between the two stamps (3, 5) on each side of a stamp holder (4), and in that step c), a milling is performed to release the outer portion of each patch of the inner portion of the caseband (2), as well as to release each free end of the stamps (3, 5).
EP08171540A 2008-12-12 2008-12-12 Watch case with striking device Active EP2196869B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH01966/08A CH700102A2 (en) 2008-12-12 2008-12-12 Watch case, has striking device with gongs fixed to gong holder, where gongs and holder are made of material similar to that of middle or back cover and directly associated with middle or back cover to form single piece
EP08171540A EP2196869B1 (en) 2008-12-12 2008-12-12 Watch case with striking device

Applications Claiming Priority (2)

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CH01966/08A CH700102A2 (en) 2008-12-12 2008-12-12 Watch case, has striking device with gongs fixed to gong holder, where gongs and holder are made of material similar to that of middle or back cover and directly associated with middle or back cover to form single piece
EP08171540A EP2196869B1 (en) 2008-12-12 2008-12-12 Watch case with striking device

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EP2196869B1 EP2196869B1 (en) 2012-05-23

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JP2019152659A (en) * 2018-03-05 2019-09-12 モントレー ブレゲ・エス アー Musical watch case
CH716149A1 (en) * 2019-05-06 2020-11-13 Richemont Int Sa Clockwork movement comprising at least one gong.
EP3832399A1 (en) * 2019-12-06 2021-06-09 Blancpain SA Set of gongs for a striking mechanism of a watch

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CH708597B1 (en) * 2013-09-19 2021-06-15 Chopard Tech Sa Timepiece comprising a box closed by a crystal and a striking mechanism.
EP2881805A1 (en) * 2013-12-09 2015-06-10 Montres Breguet SA Musical keyboard of a watch or music box with optimised dispersion
CH709594B1 (en) 2014-05-06 2021-09-30 Blancpain Sa Assembly for generating a ringing of a striking mechanism of a watch.
EP2942675B1 (en) 2014-05-07 2016-11-16 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Chiming watch
EP3002639B1 (en) 2014-10-01 2018-01-31 Montres Breguet SA Musical watch bezel with improved acoustic performance
EP3163380A1 (en) * 2015-10-27 2017-05-03 Blancpain SA. Watch with improved seal

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CH21476A (en) * 1900-05-09 1901-07-15 Paul Aubert & Fils Advanced Chime Repeater Watch
CH316213A (en) * 1954-05-25 1956-09-30 Schild Sa A Wristwatch-alarm clock

Cited By (5)

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Publication number Priority date Publication date Assignee Title
JP2019152659A (en) * 2018-03-05 2019-09-12 モントレー ブレゲ・エス アー Musical watch case
JP2019152660A (en) * 2018-03-05 2019-09-12 モントレー ブレゲ・エス アー Musical watch case
CH716149A1 (en) * 2019-05-06 2020-11-13 Richemont Int Sa Clockwork movement comprising at least one gong.
EP3832399A1 (en) * 2019-12-06 2021-06-09 Blancpain SA Set of gongs for a striking mechanism of a watch
US11644794B2 (en) 2019-12-06 2023-05-09 Blancpain Sa Assembly of gongs for a striking mechanism of a watch

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