EP2275881A1 - Device for fixing at least one metal element on the middle of a timepiece - Google Patents

Device for fixing at least one metal element on the middle of a timepiece Download PDF

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Publication number
EP2275881A1
EP2275881A1 EP09165387A EP09165387A EP2275881A1 EP 2275881 A1 EP2275881 A1 EP 2275881A1 EP 09165387 A EP09165387 A EP 09165387A EP 09165387 A EP09165387 A EP 09165387A EP 2275881 A1 EP2275881 A1 EP 2275881A1
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EP
European Patent Office
Prior art keywords
timepiece
metal element
metal
ring
fixing device
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.)
Withdrawn
Application number
EP09165387A
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German (de)
French (fr)
Inventor
Thierry Altenhoven
Carlo Albisetti
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP09165387A priority Critical patent/EP2275881A1/en
Publication of EP2275881A1 publication Critical patent/EP2275881A1/en
Withdrawn legal-status Critical Current

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    • 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
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • 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

Definitions

  • the invention relates to a device for fixing at least one metal element to a watch case middle and, more particularly, to a case in which the material comprises a large creep such as, for example, a polymer.
  • the object of the present invention is to overcome all or part of the aforementioned drawbacks by proposing a timepiece provided with a fixing device capable of bringing back durably at least one metal element to the middle part even if the material of the latter has a large creep.
  • the invention relates to a timepiece comprising a case on which at least one metal element is mounted by means of a fastening device, characterized in that each fastening device comprises an interposed metal ring. between said middle and said at least one metal element to drive the latter on said ring.
  • the metal element is fixed on an intermediate piece whose creep is much more favorable so as not to be limited in the material usable for the middle part.
  • several metal elements can be reported independently.
  • the timepiece comprises a housing 3 in which is mounted a watch movement 5.
  • the watch movement 5 is of the automatic mechanical type.
  • the casing 3 comprises a middle part 7 closed in its upper part by a bezel 9 and, in its lower part, by a bottom 11.
  • the material that can be used for the caseband 7 is not limited to a metal or its alloys but can for example be made from a plastic material.
  • the bezel 9 and / or the bottom 11 are preferably metallic so as to be able to mount a mirror 17, 18 in order, respectively, to see the dial 4 and the hands 6 of the movement 5 and / or the mass oscillating 2 and the back of movement 5.
  • each fixing device 13, 23 thus comprises a ring 15, 25 and two sealing elements 12, 14, 22, 24.
  • the rings 15, 25 are intended to receive the driving force of their associated metal element 11, 9 instead of being mounted directly on the middle part 7.
  • the rings 15, 25 have a substantially annular shape and comprises a metallic material adapted to adapt to the driving of the metal element 11, 9.
  • the rings 15, 25 are mounted by welding such as, for example, the ultrasonic type.
  • the attachment is reinforced by inserting protuberances 16, 26 of the ring 15, 25 into the middle part 7.
  • the first sealing elements 12, 22 are intended to prevent the entry of impurities in the housing 3. They preferably comprise an elastomeric material and are mounted under stress between the middle part 7 and the ring 15, 25.
  • the second sealing elements 14, 24 are intended to prevent the entry of impurities in the housing 3 but also to improve the fixing of the fastening device 13, 23. They preferably comprise an elastomeric material and are mounted under stress between the ring 15, 25 and its metal element 11, 9.
  • the fixing device 13 also makes it possible to keep the casing ring 10 of the watch movement 5 against the middle part 7 by contact with its upper face. It can also be seen that the fixing device 23 also makes it possible to keep the flange 8 of the dial 4 by contact at its inside diameter.
  • timepiece 1 whose middle part 7 is not limited as to its material and may include a bezel 9 and / or a bottom 11 provided with or without a transparent glass 17, 18.
  • the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
  • the shapes of the rings 15, 25 can be adapted to the configuration of the housing 3.
  • the configuration of the invention can not be limited to a timepiece of the mechanical type but is also suitable for a timepiece of the electronic type.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)

Abstract

The timepiece (1) has a metal bezel (9) and a metal bottom (11) mounted on a middle (7) using respective fixation devices (13, 23), where the middle is made of plastic material. The fixation devices have metal rings (15, 25) arranged between the middle and the metal bezel and between the middle and the metal bottom for countersinking the metal bezel and the metal bottom on the rings, respectively. The fixation devices have sealing elements (12, 22) arranged between the middle and the rings, respectively.

Description

Domaine de l'inventionField of the invention

L'invention se rapporte à un dispositif de fixation d'au moins un élément métallique sur une carrure de pièce d'horlogerie et, plus particulièrement, sur une carrure dont le matériau comporte un fluage important comme, par exemple, un polymère.The invention relates to a device for fixing at least one metal element to a watch case middle and, more particularly, to a case in which the material comprises a large creep such as, for example, a polymer.

Arrière plan de l'inventionBackground of the invention

Il est connu du document EP 1 321 833 une solution consistant à chasser le fond du boîtier contre une extension de la lunette afin ne pas déformer la carrure en plastique ou en métal. Cette solution n'est pas satisfaisante car elle encombre l'intérieur du boîtier et oblige à adopter une lunette et un fond métallique.It is known from the document EP 1 321 833 a solution consisting in driving the bottom of the housing against an extension of the bezel so as not to deform the middle part of plastic or metal. This solution is not satisfactory because it clutters the inside of the case and requires to adopt a telescope and a metal background.

Résumé de l'inventionSummary of the invention

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant une pièce d'horlogerie muni d'un dispositif de fixation apte à rapporter durablement dans le temps au moins un élément métallique sur la carrure même si le matériau de cette dernière comporte un fluage important.The object of the present invention is to overcome all or part of the aforementioned drawbacks by proposing a timepiece provided with a fixing device capable of bringing back durably at least one metal element to the middle part even if the material of the latter has a large creep.

A cet effet, l'invention se rapporte à une pièce d'horlogerie comportant une carrure sur laquelle au moins un élément métallique est monté à l'aide d'un dispositif de fixation caractérisée en ce que chaque dispositif de fixation comporte une bague métallique intercalée entre ladite carrure et ledit au moins un élément métallique afin de chasser ce dernier sur ladite bague.For this purpose, the invention relates to a timepiece comprising a case on which at least one metal element is mounted by means of a fastening device, characterized in that each fastening device comprises an interposed metal ring. between said middle and said at least one metal element to drive the latter on said ring.

Avantageusement, l'élément métallique est fixé sur une pièce intermédiaire dont le fluage est beaucoup plus favorable afin de ne pas être limité dans le matériau utilisable pour la carrure. De plus, plusieurs éléments métalliques peuvent être rapportés de manière indépendante.Advantageously, the metal element is fixed on an intermediate piece whose creep is much more favorable so as not to be limited in the material usable for the middle part. In addition, several metal elements can be reported independently.

Conformément à d'autres caractéristiques avantageuses de l'invention :

  • la carrure est réalisée en matière plastique ;
  • chaque dispositif de fixation comporte de plus un élément d'étanchéité entre la carrure et sa bague ;
  • ladite bague est montée sur la carrure par soudage ;
  • ledit au moins un élément métallique comprend le fond et/ou la lunette de la pièce d'horlogerie ;
  • chaque élément métallique comprend une partie transparente afin de visualiser l'intérieur de ladite pièce d'horlogerie ;
  • chaque dispositif de fixation comporte de plus un élément d'étanchéité entre ledit au moins un élément métallique associé et sa bague ;
  • la pièce d'horlogerie comporte un mouvement mécanique automatique.
According to other advantageous features of the invention:
  • the middle part is made of plastic;
  • each fixing device further comprises a sealing element between the middle part and its ring;
  • said ring is mounted on the middle part by welding;
  • said at least one metal element comprises the bottom and / or the bezel of the timepiece;
  • each metal element comprises a transparent part in order to visualize the interior of said timepiece;
  • each fixing device further comprises a sealing element between said at least one associated metallic element and its ring;
  • the timepiece comprises an automatic mechanical movement.

Description sommaire des dessinsBrief description of the drawings

D'autres particularités et avantages ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une représentation en coupe d'une pièce d'horlogerie selon l'invention ;
  • la figure 2 est une partie agrandie de la figure 1.
Other particularities and advantages will emerge clearly from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which:
  • the figure 1 is a sectional representation of a timepiece according to the invention;
  • the figure 2 is an enlarged part of the figure 1 .

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

Comme illustré à la figure 1, on peut voir en coupe une pièce d'horlogerie généralement annoté 1. La pièce d'horlogerie comporte un boîtier 3 dans lequel est monté un mouvement horloger 5. De manière préférée, le mouvement horloger 5 est du type mécanique automatique. Le boîtier 3 comporte une carrure 7 fermée dans sa partie supérieure par une lunette 9 et, dans sa partie inférieure, par un fond 11. Avantageusement selon l'invention, le matériau utilisable pour la carrure 7 n'est pas limité à un métal ou ses alliages mais peut par exemple être réalisé à partir d'une matière plastique.As illustrated in figure 1 can be seen in section a timepiece generally annotated 1. The timepiece comprises a housing 3 in which is mounted a watch movement 5. Preferably, the watch movement 5 is of the automatic mechanical type. The casing 3 comprises a middle part 7 closed in its upper part by a bezel 9 and, in its lower part, by a bottom 11. Advantageously according to the invention, the material that can be used for the caseband 7 is not limited to a metal or its alloys but can for example be made from a plastic material.

Selon l'invention, la lunette 9 et/ou le fond 11 sont préférentiellement métalliques afin de pourvoir y monter une glace 17, 18 dans le but, respectivement, de voir le cadran 4 et les aiguilles 6 du mouvement 5 et/ou la masse oscillante 2 et l'arrière du mouvement 5.According to the invention, the bezel 9 and / or the bottom 11 are preferably metallic so as to be able to mount a mirror 17, 18 in order, respectively, to see the dial 4 and the hands 6 of the movement 5 and / or the mass oscillating 2 and the back of movement 5.

Ainsi, avantageusement selon l'invention, au moins un élément métallique, c'est-à-dire notamment la lunette 9, le fond 11 ou les deux peuvent être rapportés sur la carrure 7 au moyen d'un dispositif de fixation 13, 23 et cela sans encombrer l'intérieur du boîtier 3. Dans l'exemple illustré aux figures 1 et 2, chaque dispositif de fixation 13, 23 comporte ainsi une bague 15, 25 et deux éléments d'étanchéité 12, 14, 22, 24.Thus, advantageously according to the invention, at least one metal element, that is to say in particular the bezel 9, the bottom 11 or both can be attached to the middle part 7 by means of a fastening device 13, 23 and this without cluttering the inside of the case 3. In the example illustrated in FIGS. Figures 1 and 2 each fixing device 13, 23 thus comprises a ring 15, 25 and two sealing elements 12, 14, 22, 24.

Selon l'invention, les bagues 15, 25 sont destinées à recevoir l'effort de chassage de leur élément métallique 11, 9 associé au lieu que ces derniers soient montés directement sur la carrure 7. Ainsi, préférentiellement, les bagues 15, 25 ont une forme sensiblement annulaire et comporte un matériau métallique apte à s'adapter au chassage de l'élément métallique 11, 9. Préférentiellement, les bagues 15, 25 sont montées par soudage comme, par exemple, du type à ultrasons. De plus, la fixation est renforcée par insertion de protubérances 16, 26 de la bague 15, 25 dans la carrure 7.According to the invention, the rings 15, 25 are intended to receive the driving force of their associated metal element 11, 9 instead of being mounted directly on the middle part 7. Thus, preferably, the rings 15, 25 have a substantially annular shape and comprises a metallic material adapted to adapt to the driving of the metal element 11, 9. Preferably, the rings 15, 25 are mounted by welding such as, for example, the ultrasonic type. In addition, the attachment is reinforced by inserting protuberances 16, 26 of the ring 15, 25 into the middle part 7.

Les premiers éléments d'étanchéité 12, 22 sont destinés à éviter l'entrée d'impuretés dans le boîtier 3. Ils comportent préférentiellement une matière élastomère et sont montés sous contrainte entre la carrure 7 et la bague 15, 25.The first sealing elements 12, 22 are intended to prevent the entry of impurities in the housing 3. They preferably comprise an elastomeric material and are mounted under stress between the middle part 7 and the ring 15, 25.

Les deuxièmes éléments d'étanchéité 14, 24 sont destinés à éviter l'entrée d'impuretés dans le boîtier 3 mais également à améliorer la fixation du dispositif de fixation 13, 23. Ils comportent préférentiellement une matière élastomère et sont montés sous contrainte entre la bague 15, 25 et son élément métallique 11, 9.The second sealing elements 14, 24 are intended to prevent the entry of impurities in the housing 3 but also to improve the fixing of the fastening device 13, 23. They preferably comprise an elastomeric material and are mounted under stress between the ring 15, 25 and its metal element 11, 9.

Dans l'exemple illustré aux figures 1 et 2, on peut voir que le dispositif de fixation 13 permet également de maintenir le cercle d'emboîtage 10 du mouvement horloger 5 contre la carrure 7 par contact de sa face supérieure. On peut également distinguer que le dispositif de fixation 23 permet également de maintenir le réhaut 8 du cadran 4 par contact au niveau de son diamètre intérieur.In the example shown in Figures 1 and 2 it can be seen that the fixing device 13 also makes it possible to keep the casing ring 10 of the watch movement 5 against the middle part 7 by contact with its upper face. It can also be seen that the fixing device 23 also makes it possible to keep the flange 8 of the dial 4 by contact at its inside diameter.

On obtient donc une pièce d'horlogerie 1 dont la carrure 7 n'est pas limitée quant à sa matière et pouvant comporter une lunette 9 et/ou un fond 11 munis ou pas d'une glace transparente 17, 18.We thus obtain a timepiece 1 whose middle part 7 is not limited as to its material and may include a bezel 9 and / or a bottom 11 provided with or without a transparent glass 17, 18.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré mais est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art. En particulier, les formes des bagues 15, 25 peuvent être adaptées à la configuration du boîtier 3.Of course, the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art. In particular, the shapes of the rings 15, 25 can be adapted to the configuration of the housing 3.

De même, la configuration de l'invention ne saurait se limiter à une pièce d'horlogerie du type mécanique mais est également adaptée pour une pièce d'horlogerie du type électronique.Similarly, the configuration of the invention can not be limited to a timepiece of the mechanical type but is also suitable for a timepiece of the electronic type.

Il est également envisageable de fixer les bagues 15, 25 d'une autre manière que par soudage à ultrasons. On peut notamment prévoir une fixation par thermosoudage ou par collage.It is also conceivable to fix the rings 15, 25 in another way than by ultrasonic welding. In particular, it is possible to provide fixation by heat-sealing or gluing.

Claims (9)

Pièce d'horlogerie (1) comportant une carrure (7) sur laquelle au moins un élément métallique (9, 11) est monté à l'aide d'un dispositif de fixation (13, 23) caractérisée en ce que chaque dispositif de fixation (13, 23) comporte une bague métallique (15, 25) intercalée entre ladite carrure et ledit au moins un élément métallique afin de chasser ce dernier sur ladite bague.Timepiece (1) comprising a caseband (7) on which at least one metal element (9, 11) is mounted by means of a fixing device (13, 23), characterized in that each fixing device (13, 23) comprises a metal ring (15, 25) interposed between said middle and said at least one metal element to drive the latter on said ring. Pièce d'horlogerie (1) selon la revendication 1, caractérisée en ce que la carrure (7) est réalisée en matière plastique.Timepiece (1) according to claim 1, characterized in that the middle part (7) is made of plastic. Pièce d'horlogerie (1) selon la revendication 1 ou 2, caractérisée en ce que chaque dispositif de fixation (13, 23) comporte de plus un élément d'étanchéité (12, 22) entre la carrure (7) et sa bague (15, 25).Timepiece (1) according to claim 1 or 2, characterized in that each fixing device (13, 23) further comprises a sealing element (12, 22) between the middle part (7) and its ring ( 15, 25). Pièce d'horlogerie (1) selon l'une des revendications précédentes, caractérisée en ce que ladite bague (15, 25) est montée sur la carrure (7) par soudage.Timepiece (1) according to one of the preceding claims, characterized in that said ring (15, 25) is mounted on the middle part (7) by welding. Pièce d'horlogerie (1) selon l'une des revendications précédentes, caractérisée en ce que ledit au moins un élément métallique comprend le fond (11) de la pièce d'horlogerie (1).Timepiece (1) according to one of the preceding claims, characterized in that said at least one metal element comprises the bottom (11) of the timepiece (1). Pièce d'horlogerie (1) selon l'une des revendications précédentes, caractérisée en ce que ledit au moins un élément métallique comprend la lunette (9) de la pièce d'horlogerie (1).Timepiece (1) according to one of the preceding claims, characterized in that said at least one metal element comprises the bezel (9) of the timepiece (1). Pièce d'horlogerie (1) selon l'une des revendications précédentes, caractérisée en ce que chaque élément métallique (9, 11) comprend une partie transparente (17, 18) afin de visualiser l'intérieur de ladite pièce d'horlogerie.Timepiece (1) according to one of the preceding claims, characterized in that each metal element (9, 11) comprises a transparent portion (17, 18) for visualizing the interior of said timepiece. Pièce d'horlogerie (1) selon l'une des revendications précédentes, caractérisée en ce que chaque dispositif de fixation (13, 23) comporte de plus un élément d'étanchéité (14, 24) entre ledit au moins un élément métallique (9, 11) associé et sa bague (15, 25).Timepiece (1) according to one of the preceding claims, characterized in that each fixing device (13, 23) further comprises a sealing member (14, 24) between said at least one associated metal member (9, 11) and its ring (15, 25). Pièce d'horlogerie (1) selon l'une des revendications précédentes, caractérisée en ce qu'elle comporte un mouvement mécanique automatique (5).Timepiece (1) according to one of the preceding claims, characterized in that it comprises an automatic mechanical movement (5).
EP09165387A 2009-07-14 2009-07-14 Device for fixing at least one metal element on the middle of a timepiece Withdrawn EP2275881A1 (en)

Priority Applications (1)

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EP09165387A EP2275881A1 (en) 2009-07-14 2009-07-14 Device for fixing at least one metal element on the middle of a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09165387A EP2275881A1 (en) 2009-07-14 2009-07-14 Device for fixing at least one metal element on the middle of a timepiece

Publications (1)

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EP2275881A1 true EP2275881A1 (en) 2011-01-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US415678A (en) * 1889-11-19 Fritz mink
FR1040844A (en) * 1951-02-24 1953-10-19 Rodi & Wienerberger Ag Case for wrist or pocket watch and manufacturing process thereof
GB1256687A (en) * 1969-03-28 1971-12-15
EP0048698A1 (en) * 1980-09-22 1982-03-31 Montres Rado S.A. Watertight watch case
CH690871A5 (en) * 1996-04-16 2001-02-15 Pierre Andre Joss Wristwatch.
EP1321833A1 (en) 2001-12-19 2003-06-25 ETA SA Manufacture Horlogère Suisse Timepiece with movement casing ring, which is mounted in a case assembled by the bezel or the bottom
EP1906268A1 (en) * 2006-09-27 2008-04-02 Omega SA Watch case with a composite middle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US415678A (en) * 1889-11-19 Fritz mink
FR1040844A (en) * 1951-02-24 1953-10-19 Rodi & Wienerberger Ag Case for wrist or pocket watch and manufacturing process thereof
GB1256687A (en) * 1969-03-28 1971-12-15
EP0048698A1 (en) * 1980-09-22 1982-03-31 Montres Rado S.A. Watertight watch case
CH690871A5 (en) * 1996-04-16 2001-02-15 Pierre Andre Joss Wristwatch.
EP1321833A1 (en) 2001-12-19 2003-06-25 ETA SA Manufacture Horlogère Suisse Timepiece with movement casing ring, which is mounted in a case assembled by the bezel or the bottom
EP1906268A1 (en) * 2006-09-27 2008-04-02 Omega SA Watch case with a composite middle

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