EP3495897B1 - Timepiece comprising an electric motor secured to an attachment plate - Google Patents

Timepiece comprising an electric motor secured to an attachment plate Download PDF

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Publication number
EP3495897B1
EP3495897B1 EP17206185.5A EP17206185A EP3495897B1 EP 3495897 B1 EP3495897 B1 EP 3495897B1 EP 17206185 A EP17206185 A EP 17206185A EP 3495897 B1 EP3495897 B1 EP 3495897B1
Authority
EP
European Patent Office
Prior art keywords
printed circuit
module
circuit board
timepiece
dial
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
EP17206185.5A
Other languages
German (de)
French (fr)
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EP3495897A1 (en
Inventor
Raphaël Balmer
Pascal Lagorgette
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 Manufacture Horlogere Suisse SA
Original Assignee
ETA Manufacture Horlogere Suisse 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 ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to EP17206185.5A priority Critical patent/EP3495897B1/en
Priority to US16/162,928 priority patent/US11119447B2/en
Priority to JP2018208715A priority patent/JP6666982B2/en
Priority to KR1020180149946A priority patent/KR102150765B1/en
Priority to CN201811465195.1A priority patent/CN109901373B/en
Publication of EP3495897A1 publication Critical patent/EP3495897A1/en
Application granted granted Critical
Publication of EP3495897B1 publication Critical patent/EP3495897B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/008—Mounting, assembling of components
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/02—Arrangements of electric power supplies in time pieces the power supply being a radioactive or photovoltaic source

Definitions

  • the invention relates to the field of quartz watches with an analog display.
  • the regulator of this type of watch is a quartz oscillator vibrating under the effect of the electrical energy supplied by a battery and which, associated with an electronic circuit, drives a step-by-step motor rotating display hands. .
  • the timepiece comprises a case including hands, a dial made of semiconductor material and extending below the hands, a printed circuit board placed under the dial, and a drive device mounted on the underside of the dial.
  • the driving device comprises an electric clock motor and transmission means making it possible to obtain the gear ratio required for driving each hand.
  • the printed circuit board is rigid and rests on the edges of the case.
  • a printed circuit element is etched in the dial, this printed circuit element comprising connection pads electrically connected to conductive tracks of the printed circuit board.
  • a first drawback is that the printed circuit board must be rigid, yet flexible printed circuits have many advantages over rigid printed circuits: saving space and weight, ease of integration, better resistance to difficult conditions and vibrations.
  • a second drawback is that the dial is electrically connected to the printed circuit board, which complicates the manufacture and assembly of the timepiece.
  • a third drawback is that the number of electronic components that can be mounted on the printed circuit board (for example antennas, sensors, integrated circuits, etc.) is low: they can only be mounted on the bottom surface of the printed circuit board.
  • the aim of the present invention is to overcome at least one of the drawbacks mentioned above.
  • the dial is intended to be positioned under a glass of the timepiece so as to be visible to a user.
  • this dial is covered with at least one other layer, for example an assembly comprising a solar cell, the assembly being held on the dial by means of a double-sided adhesive.
  • the dial would thus not, or only partially, be visible through the glass.
  • the motor module is not directly attached to the dial as in the aforementioned prior art document, the dial therefore does not need to be formed from a particular type of material, d '' have a particular structure or be connected to electrical connection pads.
  • the printed circuit comprises a second portion disposed against the motor module, such that the motor module is interposed between the first portion and the second portion, the printed circuit further comprising a lateral tab connecting the first portion and the second portion.
  • the printed circuit is flexible.
  • the printed circuit is rigid over the majority of its surface, and comprises at least one flexible part (forming the tongue) allowing at least one of its parts to be folded over the lower part of the motor module to form the second part.
  • the timepiece comprises a spacer, a part of which is disposed laterally on either side of the motor module and sandwiched between the first portion and the second portion of the printed circuit.
  • the surfaces of the first portion and of the second portion of the printed circuit may be larger than the upper surface and the lower surface of the motor module, the portions of the printed circuit which are not in contact with the motor module then resting on the spacer.
  • the spacer is made of plastic.
  • the spacer is formed in one piece.
  • the timepiece comprises an electric battery installed in a housing of another part of the plastic spacer.
  • axis AX crosses orthogonally the first portion P1 of printed circuit CI, the attachment plate PA, as well as the dial CD.
  • the display hands of the timepiece are intended to rotate above the CD dial and around the AX axis.
  • the motor module MD, the first portion P1 of printed circuit CI and the attachment plate PA are assembled via fixing means, which for example comprise screws VS.

Description

Domaine de l'inventionField of the invention

L'invention se rapporte au domaine des montres à quartz et à affichage analogique. Ce type de montre a pour organe régulateur un oscillateur à quartz vibrant sous l'effet de l'énergie électrique fournie par une pile et qui, associé à un circuit électronique, actionne un moteur pas-à-pas faisant tourner des aiguilles d'affichage.The invention relates to the field of quartz watches with an analog display. The regulator of this type of watch is a quartz oscillator vibrating under the effect of the electrical energy supplied by a battery and which, associated with an electronic circuit, drives a step-by-step motor rotating display hands. .

Arrière-plan de l'inventionBackground of the invention

On connait la demande de brevet EP 1 760 557 A1 , décrivant une montre à quartz et à affichage analogique. La pièce d'horlogerie comporte un boitier renfermant notamment des aiguilles, un cadran en matériau semiconducteur et s'étendant en dessous des aiguilles, une plaque à circuit imprimé disposée sous le cadran, et un dispositif d'entrainement monté sur la face inférieure de la plaque à circuit imprimé. Le dispositif d'entrainement comporte un moteur électrique horloger et des moyens de transmission permettant d'obtenir la démultiplication requise pour l'entrainement de chaque aiguille. La plaque à circuit imprimé est rigide repose sur des rebords du boitier. De plus, un élément de circuit imprimé est gravé dans le cadran, cet élément de circuit imprimé comprenant des plots de connexion reliés électriquement à des pistes conductrices de la plaque à circuit imprimé.We know the demand for patent EP 1 760 557 A1 , describing a quartz watch with an analog display. The timepiece comprises a case including hands, a dial made of semiconductor material and extending below the hands, a printed circuit board placed under the dial, and a drive device mounted on the underside of the dial. printed circuit board. The driving device comprises an electric clock motor and transmission means making it possible to obtain the gear ratio required for driving each hand. The printed circuit board is rigid and rests on the edges of the case. In addition, a printed circuit element is etched in the dial, this printed circuit element comprising connection pads electrically connected to conductive tracks of the printed circuit board.

Ce dispositif présente plusieurs inconvénients. Un premier inconvénient est que la plaque de circuit imprimé doit être rigide, or les circuits imprimés flexibles présentent de nombreux avantages par rapport aux circuits imprimés rigides : gain de place et de poids, facilité d'intégration, meilleure résistance aux conditions difficiles et aux vibrations. Un deuxième inconvénient est que le cadran est relié électriquement à la plaque de circuit imprimé, ce qui complique la fabrication et le montage de la pièce d'horlogerie. Un troisième inconvénient est que le nombre de composants électroniques qu'il est possible de monter sur la plaque de circuit imprimé (par exemple des antennes, des capteurs, des circuits intégrés, etc.) est faible : on ne peut les monter que sur la surface inférieure de la plaque de circuit imprimé.This device has several drawbacks. A first drawback is that the printed circuit board must be rigid, yet flexible printed circuits have many advantages over rigid printed circuits: saving space and weight, ease of integration, better resistance to difficult conditions and vibrations. . A second drawback is that the dial is electrically connected to the printed circuit board, which complicates the manufacture and assembly of the timepiece. A third drawback is that the number of electronic components that can be mounted on the printed circuit board (for example antennas, sensors, integrated circuits, etc.) is low: they can only be mounted on the bottom surface of the printed circuit board.

Résumé de l'inventionSummary of the invention

Le but de la présente invention est de pallier au moins un des inconvénients cités précédemment.The aim of the present invention is to overcome at least one of the drawbacks mentioned above.

A cet effet, l'invention se rapporte à une pièce d'horlogerie comprenant une carrure fermée par une glace, et les éléments suivants positionnés dans la carrure :

  • un cadran
  • une plaque d'accroche rigide s'étendant sous le cadran
  • un module comprenant un moteur électrique, dit module moteur
  • un circuit imprimé dont au moins une première portion est intercalée entre la plaque d'accroche et le module moteur, le module moteur
  • des moyens d'assemblage du module moteur à la plaque d'accroche à travers la première portion de circuit imprimé.
To this end, the invention relates to a timepiece comprising a middle part closed by a crystal, and the following elements positioned in the middle part:
  • a dial
  • a rigid attachment plate extending under the dial
  • a module comprising an electric motor, called a motor module
  • a printed circuit of which at least a first portion is interposed between the attachment plate and the motor module, the motor module
  • means for assembling the motor module to the attachment plate through the first portion of the printed circuit.

Dans un mode de réalisation, le cadran est destiné à être positionné sous une glace de la pièce d'horlogerie de sorte à être visible par un utilisateur. Dans un autre mode de réalisation, ce cadran est recouvert d'au moins une autre couche, par exemple un ensemble comportant une cellule solaire, l'ensemble étant maintenu sur le cadran par l'intermédiaire d'un adhésif double face. Le cadran ne serait ainsi pas, ou uniquement partiellement, visible à travers la glace. La couche supérieure, celle visible à travers la glace, pourrait alors porter les index.In one embodiment, the dial is intended to be positioned under a glass of the timepiece so as to be visible to a user. In another embodiment, this dial is covered with at least one other layer, for example an assembly comprising a solar cell, the assembly being held on the dial by means of a double-sided adhesive. The dial would thus not, or only partially, be visible through the glass. The upper layer, the one visible through the ice, could then carry the indexes.

Selon l'invention, le module moteur n'est pas directement fixé au cadran comme dans le document de l'état de la technique précité, le cadran n'a donc pas besoin d'être formé d'un type de matériau particulier, d'avoir une structure particulière ou encore d'être relié à des plots de connexion électriques.According to the invention, the motor module is not directly attached to the dial as in the aforementioned prior art document, the dial therefore does not need to be formed from a particular type of material, d '' have a particular structure or be connected to electrical connection pads.

Selon un mode de réalisation non limitatif, le circuit imprimé comprend une deuxième portion disposée contre le module moteur, telle que le module moteur est intercalé entre la première portion et la deuxième portion, le circuit imprimé comprenant en outre une languette latérale reliant la première portion et la deuxième portion.According to a non-limiting embodiment, the printed circuit comprises a second portion disposed against the motor module, such that the motor module is interposed between the first portion and the second portion, the printed circuit further comprising a lateral tab connecting the first portion and the second portion.

Ainsi, il est possible de monter un grand nombre de composants électroniques sur la plaque de circuit imprimé, car des composants peuvent être fixés à la première portion et à la deuxième portion, sur l'une ou l'autre de leurs faces selon ce qui est techniquement possible.Thus, it is possible to mount a large number of electronic components on the printed circuit board, since components can be attached to the first portion and to the second portion, on either of their faces depending on what is required. is technically possible.

Selon un mode de réalisation non limitatif, le circuit imprimé est flexible. Alternativement, le circuit imprimé est rigide sur la majorité de sa surface, et comporte au moins une partie flexible (formant la languette) permettant de rabattre au moins une de ses parties sur la partie inférieure du module moteur pour former la deuxième partie.According to a non-limiting embodiment, the printed circuit is flexible. Alternatively, the printed circuit is rigid over the majority of its surface, and comprises at least one flexible part (forming the tongue) allowing at least one of its parts to be folded over the lower part of the motor module to form the second part.

L'utilisation d'un circuit imprimé flexible est possible car le module moteur est supporté par l'intermédiaire de la plaque d'accroche rigide. On note que les circuits imprimés flexibles comportent de nombreux avantages, déjà évoqués, par rapport à leurs équivalents rigides.The use of a flexible printed circuit is possible because the motor module is supported by means of the rigid attachment plate. We note that flexible printed circuits have many advantages, already mentioned, compared to their rigid equivalents.

Selon un mode de réalisation, la pièce d'horlogerie comprend une entretoise dont une partie est disposée latéralement de part et d'autre du module moteur et en sandwich entre la première portion et la deuxième portion du circuit imprimé.According to one embodiment, the timepiece comprises a spacer, a part of which is disposed laterally on either side of the motor module and sandwiched between the first portion and the second portion of the printed circuit.

Ainsi, les surfaces de la première portion et de la deuxième portion de circuit imprimé peuvent être plus grandes que la surface supérieure et la surface inférieure du module moteur, les portions du circuit imprimé qui ne sont pas en contact avec le module moteur reposant alors sur l'entretoise.Thus, the surfaces of the first portion and of the second portion of the printed circuit may be larger than the upper surface and the lower surface of the motor module, the portions of the printed circuit which are not in contact with the motor module then resting on the spacer.

Avantageusement, pour des raisons d'économie de coûts, l'entretoise est en plastique. Avantageusement, l'entretoise est formée d'un seul tenant.Advantageously, for reasons of cost savings, the spacer is made of plastic. Advantageously, the spacer is formed in one piece.

Selon un mode de réalisation, la pièce d'horlogerie comprend une pile électrique installée dans un logement d'une autre partie de l'entretoise plastique.According to one embodiment, the timepiece comprises an electric battery installed in a housing of another part of the plastic spacer.

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 les figures 1 et 2 montrent différentes vues d'une partie d'une pièce d'horlogerie selon l'invention.Other particularities and advantages will emerge clearly from the description which is given below, by way of indication and in no way limiting, with reference to the accompanying drawings, in which the figures 1 and 2 show different views of a part of a timepiece according to the invention.

Description détaillée des modes de réalisation préférésDetailed description of the preferred embodiments

En références aux figures 1 et 2, une pièce d'horlogerie selon l'invention comprend, entre autres :

  • Un cadran CD, dont une surface supérieure comporte une zone périphérique présentant des index (non représentés). Le cadran CD est destiné à être positionné sous une glace de la pièce d'horlogerie de sorte à être visible par un utilisateur. Dans un autre mode de réalisation, ce cadran CD pourrait être recouvert d'au moins une autre couche, par exemple un ensemble comportant une cellule solaire ou un afficheur digital, l'ensemble pouvant être maintenu sur le cadran par l'intermédiaire d'un adhésif double face. Le cadran CD ne serait ainsi pas, ou uniquement partiellement, visible à travers la glace. La couche supérieure (c'est-à-dire celle du côté de la glace de montre ; le terme inférieur référant au contraire au côté fond de boitier de la montre) pourrait alors porter les index.
  • Une plaque d'accroche PA rigide, située sous le cadran CD. Dans le mode de réalisation non limitatif représenté, les dimensions de la plaque d'accroche PA sont sensiblement identiques aux dimensions du cadran CD, de sorte que ces deux couches sont presque parfaitement superposées. La plaque d'accroche est par exemple métallique.
  • Un module comprenant un moteur électrique, dit module moteur MD. Ledit moteur est destiné, entre autres, à mettre en rotation les aiguilles d'affichage (non représentées) de la pièce d'horlogerie autour d'un axe AX.
  • Un circuit imprimé CI (en anglais « printed circuit board », abrévié par PCB). Dans le mode de réalisation non limitatif décrit, le circuit imprimé CI est au moins en partie flexible et comprend trois portions :
    • Une première portion P1 intercalée entre la plaque d'accroche PA et le module moteur MD. Une surface supérieure du module moteur MD est disposée contre la première portion P1, et une surface supérieure de la première portion P1 est disposée contre la plaque d'accroche PA. De plus, le module moteur MD, la première portion P1 de circuit imprimé et la plaque d'accroche PA sont assemblés fixement.
    • Une deuxième portion P2 disposée contre le module moteur MD, telle que le module moteur MD est intercalé entre et maintenu contre la première portion P1 et la deuxième portion P2.
    • Une languette LG latérale reliant la première portion P1 et la deuxième portion P2.
  • Une pluralité de composants électroniques CE fixés sur la face inférieure de la première portion P1 de circuit imprimé CI, et sur la face supérieure et la face inférieure de la deuxième portion P2 de circuit imprimé CI. Les composants CE sont par exemple des antennes, des capteurs, des circuits intégrés, etc. On note qu'utiliser un circuit imprimé CI replié permet d'avoir à disposition une grande surface pour placer les composants électroniques CE.
  • Une entretoise EP, en plastique monobloc dans le mode de réalisation non limitatif décrit, dont une première partie EP1 est située latéralement de part et d'autre du module moteur MD, et prise en sandwich entre la première portion P1 et la deuxième portion P2 du circuit imprimé CI. Une deuxième partie EP2 de l'entretoise EP comprend un logement permettant de loger une pile électrique ou un accumulateur.
  • Une pile électronique PE (ou un accumulateur) logée dans le logement de la deuxième partie EP2 de l'entretoise EP, et permettant d'alimenter le moteur électrique MD et la pluralité de composants électroniques CE.
With reference to figures 1 and 2 , a timepiece according to the invention comprises, among others:
  • A dial CD, an upper surface of which has a peripheral zone having indexes (not shown). The CD dial is intended to be positioned under a glass of the timepiece so as to be visible to a user. In another embodiment, this CD dial could be covered with at least one other layer, for example an assembly comprising a solar cell or a digital display, the assembly being able to be maintained on the dial by means of a double-sided adhesive. The CD dial would thus not be, or only partially, visible through the glass. The upper layer (that is to say that on the side of the watch crystal; the lower term referring on the contrary to the case back side of the watch) could then carry the indexes.
  • A rigid PA hanging plate, located under the CD dial. In the non-limiting embodiment shown, the dimensions of the hooking plate PA are substantially identical to the dimensions of the dial CD, so that these two layers are almost perfectly superimposed. The attachment plate is for example metallic.
  • A module comprising an electric motor, called an MD motor module. Said motor is intended, among other things, to set the display hands (not shown) of the timepiece in rotation around an axis AX.
  • A printed circuit board CI (in English "printed circuit board", abbreviated by PCB). In the non-limiting embodiment described, the printed circuit CI is at least partly flexible and comprises three portions:
    • A first portion P1 interposed between the attachment plate PA and the engine module MD. An upper surface of the motor module MD is disposed against the first portion P1, and an upper surface of the first portion P1 is disposed against the attachment plate PA. In addition, the motor module MD, the first portion P1 of the printed circuit and the attachment plate PA are fixedly assembled.
    • A second portion P2 disposed against the motor module MD, such that the motor module MD is interposed between and held against the first portion P1 and the second portion P2.
    • A lateral tongue LG connecting the first portion P1 and the second portion P2.
  • A plurality of electronic components CE fixed on the lower face of the first portion P1 of printed circuit CI, and on the upper face and the lower face of the second portion P2 of printed circuit CI. CE components are e.g. antennas, sensors, integrated circuits, etc. It should be noted that using a folded printed circuit CI makes it possible to have a large surface available for placing the electronic components CE.
  • A spacer EP, in one-piece plastic in the non-limiting embodiment described, a first part EP1 of which is located laterally on either side of the engine module MD, and sandwiched between the first portion P1 and the second portion P2 of the PCB printed circuit. A second part EP2 of the spacer EP comprises a housing for housing an electric battery or an accumulator.
  • An electronic battery PE (or an accumulator) housed in the housing of the second part EP2 of the spacer EP, and making it possible to supply the electric motor MD and the plurality of electronic components CE.

On remarque l'axe AX traverse orthogonalement la première portion P1 de circuit imprimé CI, la plaque d'accroche PA, ainsi que le cadran CD. Les aiguilles d'affichage de la pièce d'horlogerie sont destinées à tourner au-dessus du cadran CD et autour de l'axe AX.Note the axis AX crosses orthogonally the first portion P1 of printed circuit CI, the attachment plate PA, as well as the dial CD. The display hands of the timepiece are intended to rotate above the CD dial and around the AX axis.

Par ailleurs, comme mentionné précédemment, le module moteur MD, la première portion P1 de circuit imprimé CI et la plaque d'accroche PA sont assemblés via des moyens de fixation, qui comprennent par exemple des vis VS.Furthermore, as mentioned above, the motor module MD, the first portion P1 of printed circuit CI and the attachment plate PA are assembled via fixing means, which for example comprise screws VS.

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.Of course, the present invention is not limited to the example illustrated but is susceptible of various variants and modifications which will appear to those skilled in the art.

Claims (6)

  1. Timepiece comprising a case middle closed by a glass and the following elements positioned in the case middle:
    - a dial (CD)
    - a rigid mounting plate (PA) extending under the dial (CD)
    - a module comprising an electric motor, referred to as the motor module (MD)
    - a printed circuit board (CI), of which at least a first portion (P1) is interposed between the mounting plate (PA) and the motor module (MD)
    - means (VS) for the assembly of the motor module (MD) on the mounting plate (PA) through the first portion (P1) of the printed circuit board (CI).
  2. Timepiece according to the preceding Claim, the printed circuit board (CI) comprising a second portion (P2) disposed against the motor module (MD), such that the motor module (MD) is interposed between the first portion (P1) and the second portion (P2), the printed circuit board (CI) further comprising a lateral tab (LG) connecting the first portion (P1) and the second portion (P2).
  3. Timepiece according to one of the preceding Claims, the printed circuit board (CI) being flexible.
  4. Timepiece according to one of Claims 2 or 3, comprising a spacer (EP), of which a first part (EP1) is disposed laterally to either side of the motor module (MD) and is sandwiched between the first portion (P1) and the second portion (P2) of the printed circuit board (CI).
  5. Timepiece according to Claim 4, the spacer (EP) being made of plastic.
  6. Timepiece according to Claim 4 or Claim 5, comprising an electric battery (PE) installed in a housing of a second part (EP2) of the spacer (EP).
EP17206185.5A 2017-12-08 2017-12-08 Timepiece comprising an electric motor secured to an attachment plate Active EP3495897B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17206185.5A EP3495897B1 (en) 2017-12-08 2017-12-08 Timepiece comprising an electric motor secured to an attachment plate
US16/162,928 US11119447B2 (en) 2017-12-08 2018-10-17 Timepiece comprising an electric motor fixed to a mounting plate
JP2018208715A JP6666982B2 (en) 2017-12-08 2018-11-06 Timepiece including electric motor fixed to mounting plate
KR1020180149946A KR102150765B1 (en) 2017-12-08 2018-11-28 Timepiece comprising an electric motor fixed to a mounting plate
CN201811465195.1A CN109901373B (en) 2017-12-08 2018-12-03 Timepiece comprising an electric motor fixed to a mounting plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17206185.5A EP3495897B1 (en) 2017-12-08 2017-12-08 Timepiece comprising an electric motor secured to an attachment plate

Publications (2)

Publication Number Publication Date
EP3495897A1 EP3495897A1 (en) 2019-06-12
EP3495897B1 true EP3495897B1 (en) 2020-08-12

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EP17206185.5A Active EP3495897B1 (en) 2017-12-08 2017-12-08 Timepiece comprising an electric motor secured to an attachment plate

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US (1) US11119447B2 (en)
EP (1) EP3495897B1 (en)
JP (1) JP6666982B2 (en)
KR (1) KR102150765B1 (en)
CN (1) CN109901373B (en)

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JP2019105627A (en) 2019-06-27
CN109901373B (en) 2020-12-11
US11119447B2 (en) 2021-09-14
CN109901373A (en) 2019-06-18
US20190179267A1 (en) 2019-06-13
JP6666982B2 (en) 2020-03-18
KR102150765B1 (en) 2020-09-02
KR20190068434A (en) 2019-06-18
EP3495897A1 (en) 2019-06-12

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