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EP3579061A1 - Case for electromechanical watch and assembly comprising same - Google Patents

Case for electromechanical watch and assembly comprising same Download PDF

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Publication number
EP3579061A1
EP3579061A1 EP18194698.9A EP18194698A EP3579061A1 EP 3579061 A1 EP3579061 A1 EP 3579061A1 EP 18194698 A EP18194698 A EP 18194698A EP 3579061 A1 EP3579061 A1 EP 3579061A1
Authority
EP
European Patent Office
Prior art keywords
watch
box
time
case
hands
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
EP18194698.9A
Other languages
German (de)
French (fr)
Other versions
EP3579061B1 (en
Inventor
Johnny BÜHLER
Jean-Jacques Born
Cédric Nicolas
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.)
Harry Winston SA
Original Assignee
Harry Winston 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 Harry Winston SA filed Critical Harry Winston SA
Publication of EP3579061A1 publication Critical patent/EP3579061A1/en
Application granted granted Critical
Publication of EP3579061B1 publication Critical patent/EP3579061B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C9/00—Electrically-actuated devices for setting the time-indicating means
    • G04C9/08—Electrically-actuated devices for setting the time-indicating means by electric drive
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F7/00—Show stands, hangers, or shelves, adapted for particular articles or materials
    • A47F7/02—Show stands, hangers, or shelves, adapted for particular articles or materials for jewellery, dentures, watches, eye-glasses, lenses, or the like
    • A47F7/022—Show stands, hangers, or shelves, adapted for particular articles or materials for jewellery, dentures, watches, eye-glasses, lenses, or the like for watches or for bracelets therefor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/006—Testing apparatus for complete clockworks with regard to external influences or general good working
    • G04D7/009—Testing apparatus for complete clockworks with regard to external influences or general good working with regard to the functioning of the automatic winding-up device
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C1/00—Winding mechanical clocks electrically
    • G04C1/003—Winding mechanical clocks electrically by electro-thermal or electro-pneumatic arrangements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C13/00—Driving mechanisms for clocks by primary clocks
    • G04C13/08—Secondary clocks actuated intermittently
    • G04C13/10—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms
    • G04C13/105—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms setting the time-indicating means
    • 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
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/002—Electrical measuring and testing apparatus
    • G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/006—Testing apparatus for complete clockworks with regard to external influences or general good working

Definitions

  • the invention relates to a case for an electromechanical watch equipped with a stepper motor for driving the hands of the watch.
  • the invention also relates to an assembly comprising the case and an electromechanical watch equipped with a stepper motor.
  • time correction systems displayed by the watch. Such systems make it possible to reset the time of the watch, for example in the case of a change of time zone or a change of the summer / winter time.
  • Such a time correction system is for example described in the patent application EP 1 553 469 A1 .
  • the system is provided with a time correction instruction device comprising, according to an exemplary embodiment, a computer connected to a camera and to a circuit for generating a time correction signal.
  • the watch includes communication means for receiving time correction data contained in this signal, and means for moving the hands at the correct time.
  • the watch can be placed on a frame with the indication of the time by the needles visible on the top, and the camera can take a photograph of the position of the hands, which is sent to the computer to recognize the time displayed by the watch.
  • the computer then generates correction data including a reference time, and transmits this data to the watch, via the signal generation circuit.
  • the box described in this document comprises a removable support, which receives the watch and a winding device of the watch connected to a camera.
  • the winding device comprises data analysis means.
  • the camera records an image of the position of the needles, and sends it to the analysis means.
  • the latter determine the time displayed by the watch and, by comparison with a time reference, transmit a time correction instruction to the winding device.
  • the winding device then allows to reassemble the watch by direct mechanical action on its crown-winding stem.
  • a disadvantage of the proposed case is that it is mechanically complex, and that it is limited to the time setting of watches with a crown-winding stem.
  • the purpose of the invention is therefore to provide a watch case for an electromechanical watch equipped with a stepping motor, enabling the delivery automatically at the time shows, in an easy and non-binding way, and overcomes the aforementioned drawbacks of the state of the art.
  • the invention relates to an electromechanical watch case equipped with a stepper motor for driving the hands of the watch, which comprises the characteristics mentioned in the independent claim 1.
  • An electromechanical watch such as an electromechanical quartz watch, typically comprises a stepper motor, such as a Lavet motor, which drives the watch hands through a gear train.
  • a stepper motor such as a Lavet motor
  • the means for setting the time of the watch comprise a driving means of the stepper motor, configured to control a direct rotation of a rotor stepping motor by inductive coupling.
  • the drive means is arranged in the box so as to be opposite the stepping motor, when the watch is placed on the receiving support.
  • Another advantage of the box according to the invention is that the time reset system it proposes does not require any modification of the watch movement of the watch.
  • the case is thus functional for any electromechanical watch movement equipped with a stepper motor, without requiring modification of this movement.
  • the drive means comprises at least one coil mounted on a ferromagnetic core and powered via power supply means.
  • the drive means comprises a rotatably mounted magnet.
  • the box further comprises a flap piece mounted on the box, an optical system for detecting the position of the needles being fixed inside the flap piece so as to be facing the hands of the watch, when the flap piece is closed on the casing and the watch is placed on the receiving support.
  • the flap piece is for example a cover.
  • the box further comprises a cover, and a presence sensor of the watch and / or closure of the cover.
  • Said sensor is connected to the time reset means, the time setting means being configured to trigger a time-setting process on the basis of a detection signal received from the time of the watch. sensor.
  • the invention also relates to an assembly comprising the box described above, and which comprises the characteristics mentioned in the independent claim 16.
  • the figure 1 represents an assembly 1, which comprises an electromechanical watch 2 and a box 4 for receiving the watch 2.
  • the electromechanical watch 2 is provided with a watch case 5, which can be made of any diamagnetic material conventionally used in watchmaking.
  • the watch case 5 can also be made of paramagnetic, non-magnetic, sapphire or even weakly ferromagnetic material.
  • the watch case 5 contains a clockwork movement (not shown) of usual construction; as well as a dial above which display means formed of needles 6 are moved.
  • the dial is protected by an ice cream 7, which closes the watch case 5.
  • the watch case 5 encloses also a stepper motor (no shown) for driving the hands 6 of the watch via a gear train of the watch movement.
  • Such a stepper motor is typically a Lavet motor.
  • the watch 2 is for example a quartz watch, without this being limiting in the context of the present invention.
  • the box 4 further comprises a system 10 for detecting the position of the hands 6.
  • the detection system comprises at least one camera 101 disposed in a cover 14 for closing the case above the hands 6 of the watch 2 placed on a support 24 for receiving the watch.
  • a set of light sources 102 may also be provided in an inner dome 103 of the cover 14 and forming for example a circle of light sources 102 parallel to the closure plane of the cover.
  • the light sources which may be light-emitting diodes, are preferably regularly spaced.
  • the camera 101 is located on the upper part of the dome being centered with respect to the circle of light sources 102.
  • the inner dome 103 diffuses the light generated by the light sources to facilitate the detection of the position of the hands 6 by Of course, an optical sensor may also be provided instead of a camera for detecting the position of the watch hands.
  • the box 4 comprises a box 8. As illustrated on the figure 2 the box 4 further comprises a system 10 for detecting the position of the hands 6 of the watch 2 and means 12 for setting the time of the watch 2. In the embodiment illustrated in FIG. figure 1 , the box 4 further comprises a lid 14, mounted on the box 8. According to a preferred embodiment illustrated on the figure 2 the box 4 also comprises a sensor 16 for the presence of the watch 2 and / or for closing the lid 14. Preferably, the box 4 may further comprise display and activation means 18, means for communication 20, a receiver 21 of a mobile telephone signal, a receiver 22 of a radio signal or GPS (Global Positioning System), a very precise time base and temperature compensated, and means of power supply 23.
  • GPS Global Positioning System
  • the box 4 is configured to contain a type and / or a form of electromechanical watch 2 predefined (es).
  • the box 8 comprises a support 24 for receiving the watch 2, adapted to the type and / or shape of the watch 2.
  • a support 24 is particularly visible to the Figures 3 to 5 .
  • the needle position detection system 10 is connected to the means 12 for resetting the watch 2.
  • the needle position detection system 10 is an optical system.
  • the needle position detection system 10 comprises a camera 101 shown in FIG. figure 1 .
  • the camera 101 is arranged so as to be substantially facing the hands 6 of the watch 2, when the watch 2 is placed on the receiving support 24.
  • the camera is for example fixed inside the cover 14 so as to be substantially opposite the needles 6, when the lid 14 is closed on the box 8.
  • FIG. 1 the camera 101 shown in FIG. figure 1 .
  • the camera 101 is arranged so as to be substantially facing the hands 6 of the watch 2, when the watch 2 is placed on the receiving support 24.
  • the camera is for example fixed inside the cover 14 so as to be substantially opposite the needles 6, when the lid 14 is closed on the box 8.
  • the camera 101 which may for example be equipped with an additional system consisting of light-emitting diodes 102 in a dome 103 and intended to illuminate the watch 2, is for example fixed to a position of the cover 14 as it is at a distance from the ice 7 of the watch case 5 substantially between 3 and 4 cm, when the lid 14 is closed on the box 8.
  • the advantage of such a camera 101 is that it saves time for the time setting of the watch 2, and that the needle position detection it allows is very dependent on the shape of the watch 2. Because the camera 101 does not need to be precisely positioned in front of the hands 6 of the watch 2, it is possible to use a relatively standard box as a screen 4.
  • the use of a camera 101 as a needle position detection system is also proven particularly suitable in the case of a a clock with a calendar.
  • the needle position detection system 10 comprises an optical sensor (no represent).
  • the optical sensor is arranged to be precisely opposite the hands 6 of the watch 2, when the watch 2 is placed on the receiving medium 24.
  • the optical sensor is for example fixed inside the cover 14 so as to be opposite the needles 6, when the cover 14 is closed on the box 8.
  • the optical sensor is for example fixed to a position of the cover 14 as it is flush with the ice 7 of the watch case 5, for example at a distance of a few millimeters, when the cover 14 is closed on the box 8.
  • the advantage of such an optical sensor is that it is a relatively simple and inexpensive component.
  • the reset means 12 are configured to reset the clock 2 on the basis of information received from the needle position detection system 10, when the watch 2 is placed on the receiving medium 24.
  • the time reset means 12 comprise data analysis means 26, a time reference, and a means 28 for driving the stepper motor of the watch 2.
  • the data analysis means 26 are connected to the means 28 for driving the stepper motor of the watch 2, to the sensor 16 for the presence of the watch 2 and / or to close the lid 14, for the means of display and activation 18, at an internal time reference, to the wired or wireless communication means 20, to the receiver 21 of a mobile telephony signal, to the receiver 22 of a radio or GPS signal, and to the means
  • the data analysis means 26 are also connected to the needle position detection system 10, for example via a flexible electronic circuit 29.
  • the data analysis means 26 consist, for example, a microprocessor.
  • the microprocessor can also store a time reference.
  • the means 28 for driving the stepper motor of the watch 2 is arranged in the box 4 so as to be opposite the stepping motor, when the watch 2 is placed on the receiving support 24 From Preferably, the drive means 28 is arranged in the box 4 so as to be on the bottom side 30 of the watch case 5, when the watch 2 is placed on the receiving support 24, opposite this bottom 30. To do this, the drive means 28 is for example arranged inside the receiving support 24, as illustrated in the drawings. Figures 3 to 5 .
  • the drive means 28 is configured to control a rotation of the rotor of the stepper motor of the watch 2 by inductive coupling. Different embodiments of the drive means 28 will be detailed later, with regard to the Figures 3 to 5 .
  • the sensor 16 for the presence of the watch 2 and / or the closure of the cover 14 is for example fixed in the box 4, inside or outside the receiving support 24.
  • the sensor 16 of the presence of the watch is for example a feeler arranged in the case 4 so as to be facing the bottom side 30 of the watch case 5, when the watch 2 is placed on the receiving support 24, facing this bottom 30.
  • the presence sensor of the watch 2 and / or closure of the cover 14 consists of the optical system 10 for detecting the position of the hands 6 of the watch 2.
  • the data analysis means 26 are for example configured to initiate a watch time reset process 2 based on a detection signal received from the sensor 16, as will be detailed later.
  • the display and activation means 18 comprise, for example, several activation buttons and several light-emitting diodes.
  • the light-emitting diodes are intended to provide visual indications relating to the operation of the box 4, and in particular to setting the time of the watch 2.
  • the communication means 20 comprise for example a micro-USB (Universal Serial Bus) 32 and a communication module 34 with a mobile communication device (not shown) accompanied by an antenna.
  • the micro-USB plug 32 is connected to the power supply means 23 and is intended to allow an electric recharging of these, via an external power source compatible with the USB format.
  • the communication module 34 is for example a bidirectional communication module compliant with the Bluetooth standard. In a variant, the communication module 34 may be a bidirectional communication module conforming to the NFC (Near Field Communication) standard, or a one-way communication module of the "light programming" type.
  • the receiver 21 of a mobile telephony signal for example a GSM (Global System for Mobile Communication) signal, is provided with a communication module and a signal receiving antenna.
  • GSM Global System for Mobile Communication
  • the receiver 22 of a radio or GPS signal is provided with a communication module and a signal receiving antenna.
  • the power supply means 23 comprise, for example, a charger 36 and an accumulator 38.
  • the charger 36 is connected to the data analysis means 26 and to the micro-USB jack 32.
  • the accumulator 38 is connected to the charger 36 for example via two electrical wires 40.
  • the data analysis means 26, the drive means 28 for driving the stepper motor of the watch 2, the display and activation means 18, the communication means 20, the receiver 21 of a mobile telephone signal, the receiver 22 of a radio or GPS signal, and the charger 36 are all connected to a common printed circuit board 42.
  • the time reset means 12, in particular the data analysis means 26, are adapted to adjust the time of the watch 2 according to the current time.
  • the current time is synchronized using a reference system, for example an on-board or remote reference system.
  • a reference system to distance comprises, for example, the reception by the receiver 22 of a radio or GPS signal, or the reception, by the communication means 20, of a signal originating from a computer network, or else the reception, by the receiver 21, a mobile telephony signal.
  • the reception of one or more of these signals makes it possible to update the time reference stored in the microprocessor 26 or in the printed circuit 42.
  • such a time reference can be provided by a precision quartz placed on the printed circuit 42.
  • the means 28 for driving the stepper motor of the watch 2 comprises at least one coil 44.
  • the drive means 28 comprises four coils 44.
  • the four coils 44 are connected in pairs diagonally via two magnetic conductors 45, forming substantially a symmetrical cross shape, the coils 44 being disposed at the ends of the cross.
  • the coils 44 are advantageously arranged so that the center 47 of the cross thus formed is substantially opposite the center of the watch case 5 when it is placed on the receiving support 24, when the watch case 5 defines a symmetry of revolution.
  • This particular arrangement of the four coils 44 makes it possible, once these are electrically powered, to obtain a rotating magnetic field.
  • This rotating magnetic field makes it possible to induce a direct magnetic coupling with the stepper motor of the watch 2.
  • the coils 44 are for example chosen so that the value of such a magnetic field is typically equal to order of 0.02 Teslas.
  • An advantage of the use of four coils 44 thus arranged is that they make it possible to turn the stepper motor of the watch 2, and thus the needles 6, in both directions of rotation.
  • the coils 44 are each mounted on a ferromagnetic core 46 and are powered via a power source. electric. Ferromagnetic cores 46 are for example made of a soft ferromagnetic metal.
  • the power supply source consists of the power supply means 23.
  • the four coils 44 are inclined relative to the plane of the printed circuit 42, towards the inside of the center 47 of the cross arrangement that they define.
  • the coils 44 are inclined by defining an angle with the plane of the printed circuit 42, the value of this angle being identical for the four coils 44.
  • This arrangement advantageously makes it possible to create a horizontal magnetic field inside the coils 44, so that the rotating magnetic field substantially horizontally drives the stepper motor of the watch 2. This makes it possible to improve the efficiency of the magnetic coupling.
  • the drive means 28 may for example comprise two coils 44.
  • This variant embodiment makes it possible to obtain, once the coils 44 are electrically powered, a horizontal magnetic field. This makes it possible to turn the hands 6 of the watch 2 only in one direction of rotation.
  • the coils 44 are for example chosen so that the value of the magnetic field produced is typically of the order of 0.02 Tesla.
  • FIG 5 illustrates a second embodiment of the invention for which elements similar to the first embodiment, described above, are identified by identical references, and are therefore not described again.
  • the means 28 for driving the stepper motor of the watch 2 no longer comprises coils, but comprises a magnet 48 rotatably mounted.
  • the magnet 48 is rotatably mounted by means of an electric motor 50 supplied via the power supply means 23.
  • the magnet 48 is mounted on the axis of the electric motor 50.
  • the rotating magnet 48 provides, once the electric motor 50 electrically powered, a rotating magnetic field. This rotating magnetic field makes it possible to induce a magnetic coupling with the stepper motor of the watch 2.
  • the magnet 48 is for example chosen so that the value of such a magnetic field is typically equal to order of 0.02 Teslas.
  • the speed of the electric motor 50 is controlled by the microprocessor 26.
  • the electric motor 50 is for example a DC motor equipped with an encoder.
  • the electric motor 50 may be a stepper motor.
  • An advantage of the use of a rotatably mounted magnet 48 is that it makes it possible to turn the stepper motor of the watch 2, and thus the needles 6, in both directions of rotation. This advantageously reduces the time of delivery to the watch 2 time.
  • the operation of the box 4 according to the invention will now be described.
  • the watch 2 is initially placed in the box 4, on the reception support 24.
  • the method of setting the time of the watch 2, implemented by the box 4 can be triggered either manually by a user, or automatically.
  • the latter after having closed the cover 14, for example presses a trigger button belonging to the display and activation means 18.
  • the box 4 comprises a sensor 16 of presence of the watch 2 and / or closure of the lid 14, the triggering of the time reset process is carried out automatically, following a detection of the sensor 16.
  • sensor 16 then transmits a detection signal to the analysis means 26, which triggers the method of setting the time.
  • the detection system 10, controlled by the analysis means 26, triggers a detection of the position of the hands 6 of the watch 2, and transmits needle position data to the means 12 of delivery time of the watch 2. More precisely, the analysis means 26 receive the position data of the hands and compare them with the available time reference. Optionally, an updating of the time reference can be performed by the analysis means 26, via a remote reference system. The reception, by the analysis means 26, of a temporal reference signal allows for example this update. The analysis means 26 then determines, based on the result of the comparison, a command to reset the current time of the watch 2, and transmit this command to the drive means 28.
  • the drive means 28 then commands , by inductive coupling, a rotation of the rotor of the stepper motor of the watch 2, which allows a movement of the needles 6 driven by the engine.
  • the stepper motor of the watch 2 is then rotated, until the hands 6 reach a position corresponding to the current time, which terminates the process.
  • An optical check of the correct position of the needles can be added, if necessary.
  • the first step of rotating the stepper motor of the watch 2 to pass the hands 6 in front of the detection system, no longer necessary.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

L'écrin (4) est prévu pour recevoir une montre électromécanique (2) équipée d'un moteur pas-à-pas pour l'entraînement des aiguilles (6) de la montre. L'écrin comprend un coffret (8) avec un support (24) de réception de la montre, un système (10) de détection de position des aiguilles (6), des moyens de remise à l'heure de la montre, reliés au système de détection de position des aiguilles, et configurés pour remettre à l'heure la montre sur la base d'informations reçues du système de détection de position des aiguilles et d'une référence de temps, lorsque la montre est placée sur le support de réception. Les moyens de remise à l'heure comprennent un moyen d'entraînement du moteur pas-à-pas de la montre électromécanique, qui est agencé dans l'écrin en regard du moteur pas-à-pas, lorsque la montre est placée sur le support de réception, et est configuré pour commander une rotation du moteur pas-à-pas par couplage inductif.The case (4) is designed to receive an electromechanical watch (2) equipped with a stepping motor for driving the hands (6) of the watch. The case comprises a box (8) with a support (24) for receiving the watch, a system (10) for detecting the position of the hands (6), means for resetting the time of the watch, connected to the hand position detection system, and configured to reset the watch to the time based on information received from the hand position detection system and a time reference, when the watch is placed on the support reception. The time reset means comprise a drive means of the stepping motor of the electromechanical watch, which is arranged in the case facing the stepping motor, when the watch is placed on the receiving support, and is configured to control a rotation of the stepping motor by inductive coupling.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne un écrin pour une montre électromécanique équipée d'un moteur pas-à-pas pour l'entraînement des aiguilles de la montre.The invention relates to a case for an electromechanical watch equipped with a stepper motor for driving the hands of the watch.

L'invention concerne également un ensemble comprenant l'écrin et une montre électromécanique équipée d'un moteur pas-à-pas.The invention also relates to an assembly comprising the case and an electromechanical watch equipped with a stepper motor.

ETAT DE LA TECHNIQUESTATE OF THE ART

Dans le domaine des montres électromécaniques munies d'aiguilles, on connaît des systèmes de correction du temps affiché par la montre. De tels systèmes permettent de remettre à l'heure la montre, par exemple dans le cas d'un changement de fuseau horaire ou encore d'un changement de l'heure été/hiver.In the field of electromechanical watches equipped with needles, there are known time correction systems displayed by the watch. Such systems make it possible to reset the time of the watch, for example in the case of a change of time zone or a change of the summer / winter time.

Un tel système de correction du temps est par exemple décrit dans la demande de brevet EP 1 553 469 A1 . Le système est muni d'un dispositif d'instruction de correction du temps, comprenant selon un exemple de réalisation un ordinateur relié à une caméra et à un circuit de génération d'un signal de correction du temps. La montre comprend des moyens de communication pour recevoir des données de correction du temps contenues dans ce signal, et des moyens pour déplacer les aiguilles à l'heure exacte. La montre peut être posée sur un cadre avec l'indication de l'heure par les aiguilles visible sur le dessus, et la caméra peut prendre une photographie de la position des aiguilles, qui est envoyée à l'ordinateur pour reconnaître l'heure affichée par la montre. L'ordinateur génère alors des données de correction comprenant un temps de référence, et transmet ces données à la montre, via le circuit de génération de signal. Toutefois, un inconvénient d'un tel système est qu'il impose une modification du mouvement de la montre, afin d'y intégrer des moyens de communication et des moyens de déplacement des aiguilles. En outre, un tel système est encombrant et contraignant, nécessitant notamment le recours à un ordinateur pour la correction du temps.Such a time correction system is for example described in the patent application EP 1 553 469 A1 . The system is provided with a time correction instruction device comprising, according to an exemplary embodiment, a computer connected to a camera and to a circuit for generating a time correction signal. The watch includes communication means for receiving time correction data contained in this signal, and means for moving the hands at the correct time. The watch can be placed on a frame with the indication of the time by the needles visible on the top, and the camera can take a photograph of the position of the hands, which is sent to the computer to recognize the time displayed by the watch. The computer then generates correction data including a reference time, and transmits this data to the watch, via the signal generation circuit. However, a disadvantage of such a system is that it imposes a modification of the movement of the watch, in order to incorporate communication means and means for moving the needles. In addition, such a system is cumbersome and constraining, requiring in particular the use of a computer for the correction of time.

Afin de pallier l'inconvénient précité, il est connu des écrins de montre adaptés pour recevoir une montre sur un support et comprenant des moyens de remise à l'heure de la montre. A ce titre, on peut citer la demande de brevet WO 2012/126978 A1 , qui décrit un tel écrin. Selon un exemple de réalisation particulier, l'écrin décrit dans ce document comprend un support amovible, qui reçoit la montre et un dispositif de remontage de la montre relié à une caméra. Le dispositif de remontage comprend des moyens d'analyse de données. Une fois la montre placée sur le support amovible de l'écrin, la caméra enregistre une image de la position des aiguilles, et l'envoie aux moyens d'analyse. Ces derniers déterminent alors l'heure affichée par la montre et, par comparaison avec une référence de temps, transmettent une instruction de correction de l'heure au dispositif de remontage. Le dispositif de remontage permet alors de remonter la montre par action mécanique directe sur sa couronne-tige de remontoir. Toutefois, un inconvénient de l'écrin proposé est qu'il est mécaniquement complexe, et qu'il est limité à la remise à l'heure de montres disposant d'une couronne-tige de remontoir.In order to overcome the aforementioned drawback, watch cases adapted to receive a watch on a support and comprising means for setting the time of the watch are known. As such, one can cite the patent application WO 2012/126978 A1 , which describes such a case. According to a particular embodiment, the box described in this document comprises a removable support, which receives the watch and a winding device of the watch connected to a camera. The winding device comprises data analysis means. Once the watch is placed on the removable support of the box, the camera records an image of the position of the needles, and sends it to the analysis means. The latter then determine the time displayed by the watch and, by comparison with a time reference, transmit a time correction instruction to the winding device. The winding device then allows to reassemble the watch by direct mechanical action on its crown-winding stem. However, a disadvantage of the proposed case is that it is mechanically complex, and that it is limited to the time setting of watches with a crown-winding stem.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a donc pour but de fournir un écrin pour montre électromécanique équipée d'un moteur pas-à-pas, permettant de remettre automatiquement à l'heure la montre, de manière aisée et non contraignante, et palliant les inconvénients susmentionnés de l'état de la technique.The purpose of the invention is therefore to provide a watch case for an electromechanical watch equipped with a stepping motor, enabling the delivery automatically at the time shows, in an easy and non-binding way, and overcomes the aforementioned drawbacks of the state of the art.

A cet effet, l'invention concerne un écrin pour montre électromécanique équipée d'un moteur pas-à-pas pour l'entraînement des aiguilles de la montre, qui comprend les caractéristiques mentionnées dans la revendication indépendante 1.To this end, the invention relates to an electromechanical watch case equipped with a stepper motor for driving the hands of the watch, which comprises the characteristics mentioned in the independent claim 1.

Des formes particulières de l'écrin sont définies dans les revendications dépendantes 2 à 15.Particular forms of the box are defined in the dependent claims 2 to 15.

Une montre électromécanique, telle qu'une montre électromécanique à quartz, comprend typiquement un moteur pas-à-pas, tel qu'un moteur Lavet, qui entraîne les aiguilles de la montre par l'intermédiaire d'un train d'engrenages.An electromechanical watch, such as an electromechanical quartz watch, typically comprises a stepper motor, such as a Lavet motor, which drives the watch hands through a gear train.

Un avantage de l'écrin selon l'invention réside dans le fait que les moyens de remise à l'heure de la montre comprennent un moyen d'entraînement du moteur pas-à-pas, configuré pour commander une rotation directe d'un rotor du moteur pas-à-pas par couplage inductif. Le moyen d'entraînement est agencé dans l'écrin de sorte à être en regard du moteur pas-à-pas, lorsque la montre est placée sur le support de réception. Ainsi, la remise à l'heure de la montre électromécanique est réalisée de manière aisée et rapide dans l'écrin, par action du moyen d'entraînement par couplage inductif directement sur le moteur pas-à-pas.An advantage of the case according to the invention lies in the fact that the means for setting the time of the watch comprise a driving means of the stepper motor, configured to control a direct rotation of a rotor stepping motor by inductive coupling. The drive means is arranged in the box so as to be opposite the stepping motor, when the watch is placed on the receiving support. Thus, the time setting of the electromechanical watch is carried out easily and quickly in the box, by action of inductively coupled drive means directly on the stepper motor.

Un autre avantage de l'écrin selon l'invention est que le système de remise à l'heure qu'il propose ne nécessite aucune modification du mouvement horloger de la montre. L'écrin est ainsi fonctionnel pour n'importe quel mouvement de montre électromécanique équipée d'un moteur pas-à-pas, sans nécessiter de modification de ce mouvement.Another advantage of the box according to the invention is that the time reset system it proposes does not require any modification of the watch movement of the watch. The case is thus functional for any electromechanical watch movement equipped with a stepper motor, without requiring modification of this movement.

Selon un premier mode de réalisation de l'invention, le moyen d'entraînement comprend au moins une bobine montée sur un noyau ferromagnétique et alimentée via des moyens d'alimentation électrique.According to a first embodiment of the invention, the drive means comprises at least one coil mounted on a ferromagnetic core and powered via power supply means.

Selon un deuxième mode de réalisation de l'invention, le moyen d'entraînement comprend un aimant monté rotatif. Un avantage de ce deuxième mode de réalisation est qu'il permet de faire tourner le moteur pas-à-pas, et donc les aiguilles, dans les deux sens de rotation. Ceci permet de réduire avantageusement la durée de remise à l'heure de la montre.According to a second embodiment of the invention, the drive means comprises a rotatably mounted magnet. An advantage of this second embodiment is that it allows to rotate the stepper motor, and therefore the needles, in both directions of rotation. This advantageously reduces the time of delivery to the time of the watch.

Avantageusement, l'écrin comprend en outre une pièce de rabat montée sur le coffret, un système optique de détection de position des aiguilles étant fixé à l'intérieur de la pièce de rabat de sorte à être en regard des aiguilles de la montre, lorsque la pièce de rabat est refermée sur le coffret et que la montre est placée sur le support de réception. Ceci permet d'optimiser l'espace à l'intérieur de l'écrin, en libérant de l'espace au sein du coffret. La pièce de rabat est par exemple un couvercle.Advantageously, the box further comprises a flap piece mounted on the box, an optical system for detecting the position of the needles being fixed inside the flap piece so as to be facing the hands of the watch, when the flap piece is closed on the casing and the watch is placed on the receiving support. This optimizes the space inside the box, freeing up space within the cabinet. The flap piece is for example a cover.

Avantageusement, l'écrin comprend en outre un couvercle, et un capteur de présence de la montre et/ou de fermeture du couvercle. Ledit capteur est relié aux moyens de remise à l'heure de la montre, les moyens de remise à l'heure étant configurés pour déclencher un processus de remise à l'heure de la montre sur la base d'un signal de détection reçu du capteur. Ceci permet d'automatiser complètement le processus de remise à l'heure de la montre, à partir du moment où la montre est placée sur le support de réception et/ou où le couvercle est refermé.Advantageously, the box further comprises a cover, and a presence sensor of the watch and / or closure of the cover. Said sensor is connected to the time reset means, the time setting means being configured to trigger a time-setting process on the basis of a detection signal received from the time of the watch. sensor. This makes it possible to completely automate the process of setting the time of the watch, from the moment the watch is placed on the receiving support and / or where the lid is closed.

A cet effet, l'invention concerne également un ensemble comprenant l'écrin décrit ci-dessus, et qui comprend les caractéristiques mentionnées dans la revendication indépendante 16.For this purpose, the invention also relates to an assembly comprising the box described above, and which comprises the characteristics mentioned in the independent claim 16.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, avantages et caractéristiques de l'écrin pour montre électromécanique, ainsi que de l'ensemble le comprenant, apparaîtront mieux dans la description suivante sur la base d'au moins une forme d'exécution non limitative illustrée par les dessins sur lesquels :

  • la figure 1 est une vue en perspective d'un ensemble comprenant une montre électromécanique et un écrin selon l'invention ;
  • la figure 2 représente un schéma bloc simplifié des composants électroniques de l'écrin de la figure 1 selon un exemple de réalisation ;
  • la figure 3 est une vue en perspective d'une partie de l'écrin, selon un premier mode de réalisation de l'invention ;
  • la figure 4 est une vue de dessus de l'écrin de la figure 3 ;
  • la figure 5 est une vue en perspective d'une partie de l'écrin, selon un deuxième mode de réalisation de l'invention.
The aims, advantages and characteristics of the electromechanical watch case, as well as the set comprising it, will become more apparent in the following description on the basis of at least one non-limiting embodiment illustrated by the drawings in which:
  • the figure 1 is a perspective view of an assembly comprising an electromechanical watch and a case according to the invention;
  • the figure 2 represents a simplified block diagram of the electronic components of the box of the figure 1 according to an exemplary embodiment;
  • the figure 3 is a perspective view of a part of the box, according to a first embodiment of the invention;
  • the figure 4 is a view from above of the box of the figure 3 ;
  • the figure 5 is a perspective view of a part of the box, according to a second embodiment of the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Dans la description suivante, il est fait référence à un écrin pour montre électromécanique, notamment un écrin pour montre électromécanique à quartz. Tous les composants électroniques de l'écrin, qui sont bien connus d'un homme du métier dans ce domaine technique, ne sont décrits que de manière simplifiée. En particulier, l'homme du métier saura adapter ces différents composants électroniques et les faire coopérer pour le fonctionnement de l'écrin.In the following description, reference is made to an electromechanical watch case, in particular an electromechanical quartz watch case. All electronic components of the case, which are well known to those skilled in this technical field, are described in a simplified manner. In particular, those skilled in the art will be able to adapt these different electronic components and make them cooperate for the operation of the box.

La figure 1 représente un ensemble 1, qui comprend une montre électromécanique 2 et un écrin 4 de réception de la montre 2. La montre électromécanique 2 est munie d'une boîte de montre 5, qui peut être réalisée dans tout matériau diamagnétique classiquement utilisé en horlogerie. La boîte de montre 5 peut aussi être réalisée en matériau paramagnétique, amagnétique, saphir, voire faiblement ferromagnétique. La boîte de montre 5 renferme un mouvement d'horlogerie (non représenté) de construction usuelle ; ainsi qu'un cadran au-dessus duquel se déplacent des moyens d'affichage formés d'aiguilles 6. Le cadran est protégé par une glace 7, qui vient refermer la boîte de montre 5. De manière classique, la boîte de montre 5 renferme également un moteur pas-à-pas (non représenté) pour entraîner les aiguilles 6 de la montre via un train d'engrenages du mouvement d'horlogerie. Un tel moteur pas-à-pas est typiquement un moteur Lavet. La montre 2 est par exemple une montre à quartz, sans que cela ne soit limitatif dans le cadre de la présente invention.The figure 1 represents an assembly 1, which comprises an electromechanical watch 2 and a box 4 for receiving the watch 2. The electromechanical watch 2 is provided with a watch case 5, which can be made of any diamagnetic material conventionally used in watchmaking. The watch case 5 can also be made of paramagnetic, non-magnetic, sapphire or even weakly ferromagnetic material. The watch case 5 contains a clockwork movement (not shown) of usual construction; as well as a dial above which display means formed of needles 6 are moved. The dial is protected by an ice cream 7, which closes the watch case 5. In a conventional manner, the watch case 5 encloses also a stepper motor (no shown) for driving the hands 6 of the watch via a gear train of the watch movement. Such a stepper motor is typically a Lavet motor. The watch 2 is for example a quartz watch, without this being limiting in the context of the present invention.

Sur la figure 1, l'écrin 4 comprend encore un système 10 de détection de position des aiguilles 6. Le système de détection comprend au moins une caméra 101 disposée dans un couvercle 14 de fermeture de l'écrin au-dessus des aiguilles 6 de la montre 2 placée sur un support 24 de réception de la montre. Un ensemble de sources de lumière 102 peut également être prévu dans un dôme intérieur 103 du couvercle 14 et formant par exemple un cercle de sources de lumière 102 parallèle au plan de fermeture du couvercle. Les sources de lumière, qui peuvent être des diodes électroluminescentes, sont de préférence régulièrement espacées. La caméra 101 est située sur la partie haute du dôme en étant centrée par rapport au cercle de sources de lumière 102. Le dôme intérieur 103 permet de diffuser la lumière générée par les sources de lumière afin de faciliter la détection de position des aiguilles 6 par la caméra 101. Bien entendu, il peut aussi être prévu un capteur optique en lieu et place d'une caméra pour détecter la position des aiguilles de montre.On the figure 1 , the box 4 further comprises a system 10 for detecting the position of the hands 6. The detection system comprises at least one camera 101 disposed in a cover 14 for closing the case above the hands 6 of the watch 2 placed on a support 24 for receiving the watch. A set of light sources 102 may also be provided in an inner dome 103 of the cover 14 and forming for example a circle of light sources 102 parallel to the closure plane of the cover. The light sources, which may be light-emitting diodes, are preferably regularly spaced. The camera 101 is located on the upper part of the dome being centered with respect to the circle of light sources 102. The inner dome 103 diffuses the light generated by the light sources to facilitate the detection of the position of the hands 6 by Of course, an optical sensor may also be provided instead of a camera for detecting the position of the watch hands.

L'écrin 4 comprend un coffret 8. Comme illustré sur la figure 2, l'écrin 4 comprend en outre un système 10 de détection de position des aiguilles 6 de la montre 2 et des moyens 12 de remise à l'heure de la montre 2. Dans l'exemple de réalisation illustré sur la figure 1, l'écrin 4 comprend en outre un couvercle 14, monté sur le coffret 8. Selon un exemple de réalisation préférentiel illustré sur la figure 2, l'écrin 4 comprend également un capteur 16 de présence de la montre 2 et/ou de fermeture du couvercle 14. De préférence, l'écrin 4 peut comporter en outre des moyens d'affichage et d'activation 18, des moyens de communication 20, un récepteur 21 d'un signal de téléphonie mobile, un récepteur 22 d'un signal radio ou GPS (de l'anglais Global Positioning System), une base de temps très précise et compensée en température, et des moyens d'alimentation électrique 23.The box 4 comprises a box 8. As illustrated on the figure 2 the box 4 further comprises a system 10 for detecting the position of the hands 6 of the watch 2 and means 12 for setting the time of the watch 2. In the embodiment illustrated in FIG. figure 1 , the box 4 further comprises a lid 14, mounted on the box 8. According to a preferred embodiment illustrated on the figure 2 the box 4 also comprises a sensor 16 for the presence of the watch 2 and / or for closing the lid 14. Preferably, the box 4 may further comprise display and activation means 18, means for communication 20, a receiver 21 of a mobile telephone signal, a receiver 22 of a radio signal or GPS (Global Positioning System), a very precise time base and temperature compensated, and means of power supply 23.

De préférence, l'écrin 4 est configuré pour contenir un type et/ou une forme de montre électromécanique 2 prédéfini(es). Pour ce faire, le coffret 8 comprend un support 24 de réception de la montre 2, adapté au type et/ou à la forme de la montre 2. Un tel support 24 est notamment visible aux figures 3 à 5.Preferably, the box 4 is configured to contain a type and / or a form of electromechanical watch 2 predefined (es). To do this, the box 8 comprises a support 24 for receiving the watch 2, adapted to the type and / or shape of the watch 2. Such a support 24 is particularly visible to the Figures 3 to 5 .

Comme illustré sur la figure 2, le système 10 de détection de position des aiguilles 6 est relié aux moyens 12 de remise à l'heure de la montre 2. De préférence, le système 10 de détection de position des aiguilles 6 est un système optique. Selon un premier exemple de réalisation, le système 10 de détection de position des aiguilles 6 comprend une caméra 101 montrée en figure 1. La caméra 101 est agencée de sorte à être sensiblement en regard des aiguilles 6 de la montre 2, lorsque la montre 2 est placée sur le support de réception 24. Pour ce faire, la caméra est par exemple fixée à l'intérieur du couvercle 14 de sorte à être sensiblement en regard des aiguilles 6, lorsque le couvercle 14 est refermé sur le coffret 8. Comme montré à la figure 1, la caméra 101, qui peut par exemple être équipée d'un système additionnel consistant en des diodes électroluminescentes 102 dans un dôme 103 et destinées à éclairer la montre 2, est par exemple fixée à une position du couvercle 14 telle qu'elle se situe à une distance de la glace 7 de la boîte de montre 5 sensiblement comprise entre 3 et 4 cm, lorsque le couvercle 14 est refermé sur le coffret 8. L'avantage d'une telle caméra 101 est qu'elle permet un gain de temps pour la remise à l'heure de la montre 2, et que la détection de position des aiguilles qu'elle permet est très peu dépendante de la forme de la montre 2. Du fait que la caméra 101 ne nécessite pas d'être positionnée précisément en face des aiguilles 6 de la montre 2, il est possible d'utiliser un écrin relativement standard en tant qu'écrin 4. L'utilisation d'une caméra 101 en tant que système de détection de position des aiguilles s'avère en outre particulièrement adaptée dans le cas d'une montre à aiguilles munie d'un calendrier.As illustrated on the figure 2 , the needle position detection system 10 is connected to the means 12 for resetting the watch 2. Preferably, the needle position detection system 10 is an optical system. According to a first exemplary embodiment, the needle position detection system 10 comprises a camera 101 shown in FIG. figure 1 . The camera 101 is arranged so as to be substantially facing the hands 6 of the watch 2, when the watch 2 is placed on the receiving support 24. To do this, the camera is for example fixed inside the cover 14 so as to be substantially opposite the needles 6, when the lid 14 is closed on the box 8. As shown in FIG. figure 1 the camera 101, which may for example be equipped with an additional system consisting of light-emitting diodes 102 in a dome 103 and intended to illuminate the watch 2, is for example fixed to a position of the cover 14 as it is at a distance from the ice 7 of the watch case 5 substantially between 3 and 4 cm, when the lid 14 is closed on the box 8. The advantage of such a camera 101 is that it saves time for the time setting of the watch 2, and that the needle position detection it allows is very dependent on the shape of the watch 2. Because the camera 101 does not need to be precisely positioned in front of the hands 6 of the watch 2, it is possible to use a relatively standard box as a screen 4. The use of a camera 101 as a needle position detection system is also proven particularly suitable in the case of a a clock with a calendar.

Selon un deuxième exemple de réalisation, le système 10 de détection de position des aiguilles 6 comprend un capteur optique (non représenté). Le capteur optique est agencé de sorte à être précisément en face des aiguilles 6 de la montre 2, lorsque la montre 2 est placée sur le support de réception 24. Pour ce faire, le capteur optique est par exemple fixé à l'intérieur du couvercle 14 de sorte à être en regard des aiguilles 6, lorsque le couvercle 14 est refermé sur le coffret 8. Le capteur optique est par exemple fixé à une position du couvercle 14 telle qu'il affleure la glace 7 de la boîte de montre 5, par exemple à une distance de quelques millimètres, lorsque le couvercle 14 est refermé sur le coffret 8. L'avantage d'un tel capteur optique est qu'il s'agit d'un composant relativement simple et peu coûteux.According to a second exemplary embodiment, the needle position detection system 10 comprises an optical sensor (no represent). The optical sensor is arranged to be precisely opposite the hands 6 of the watch 2, when the watch 2 is placed on the receiving medium 24. To do this, the optical sensor is for example fixed inside the cover 14 so as to be opposite the needles 6, when the cover 14 is closed on the box 8. The optical sensor is for example fixed to a position of the cover 14 as it is flush with the ice 7 of the watch case 5, for example at a distance of a few millimeters, when the cover 14 is closed on the box 8. The advantage of such an optical sensor is that it is a relatively simple and inexpensive component.

Les moyens de remise à l'heure 12 sont configurés pour remettre à l'heure la montre 2 sur la base d'informations reçues du système 10 de détection de position des aiguilles 6, lorsque la montre 2 est placée sur le support de réception 24. Pour ce faire, les moyens de remise à l'heure 12 comprennent des moyens 26 d'analyse de données, une référence de temps, et un moyen 28 d'entraînement du moteur pas-à-pas de la montre 2.The reset means 12 are configured to reset the clock 2 on the basis of information received from the needle position detection system 10, when the watch 2 is placed on the receiving medium 24. To do this, the time reset means 12 comprise data analysis means 26, a time reference, and a means 28 for driving the stepper motor of the watch 2.

Comme représenté sur la figure 2, les moyens 26 d'analyse de données sont reliés au moyen 28 d'entraînement du moteur pas-à-pas de la montre 2, au capteur 16 de présence de la montre 2 et/ou de fermeture du couvercle 14, aux moyens d'affichage et d'activation 18, à une référence de temps interne, aux moyens de communication 20 avec ou sans fil, au récepteur 21 d'un signal de téléphonie mobile, au récepteur 22 d'un signal radio ou GPS, et aux moyens d'alimentation électrique 23. Les moyens 26 d'analyse de données sont également reliés au système 10 de détection de position des aiguilles 6, par exemple via un circuit électronique souple 29. Les moyens 26 d'analyse de données sont par exemple constitués d'un microprocesseur. Le microprocesseur peut stocker également une référence de temps.As shown on the figure 2 , the data analysis means 26 are connected to the means 28 for driving the stepper motor of the watch 2, to the sensor 16 for the presence of the watch 2 and / or to close the lid 14, for the means of display and activation 18, at an internal time reference, to the wired or wireless communication means 20, to the receiver 21 of a mobile telephony signal, to the receiver 22 of a radio or GPS signal, and to the means The data analysis means 26 are also connected to the needle position detection system 10, for example via a flexible electronic circuit 29. The data analysis means 26 consist, for example, a microprocessor. The microprocessor can also store a time reference.

Le moyen 28 d'entraînement du moteur pas-à-pas de la montre 2 est agencé dans l'écrin 4 de sorte à être en regard du moteur pas-à-pas, lorsque la montre 2 est placée sur le support de réception 24. De préférence, le moyen d'entraînement 28 est agencé dans l'écrin 4 de sorte à être du côté du fond 30 de la boîte de montre 5, lorsque la montre 2 est placée sur le support de réception 24, en regard de ce fond 30. Pour ce faire, le moyen d'entraînement 28 est par exemple agencé à l'intérieur du support de réception 24, comme illustré sur les figures 3 à 5. Le moyen d'entraînement 28 est configuré pour commander une rotation du rotor du moteur pas-à-pas de la montre 2 par couplage inductif. Différents exemples de réalisation du moyen d'entraînement 28 seront détaillés par la suite, en regard des figures 3 à 5.The means 28 for driving the stepper motor of the watch 2 is arranged in the box 4 so as to be opposite the stepping motor, when the watch 2 is placed on the receiving support 24 From Preferably, the drive means 28 is arranged in the box 4 so as to be on the bottom side 30 of the watch case 5, when the watch 2 is placed on the receiving support 24, opposite this bottom 30. To do this, the drive means 28 is for example arranged inside the receiving support 24, as illustrated in the drawings. Figures 3 to 5 . The drive means 28 is configured to control a rotation of the rotor of the stepper motor of the watch 2 by inductive coupling. Different embodiments of the drive means 28 will be detailed later, with regard to the Figures 3 to 5 .

Le capteur 16 de présence de la montre 2 et/ou de fermeture du couvercle 14 est par exemple fixé dans l'écrin 4, à l'intérieur ou à l'extérieur du support de réception 24. Le capteur 16 de présence de la montre est par exemple un palpeur agencé dans l'écrin 4 de sorte à être en regard du côté du fond 30 de la boîte de montre 5, lorsque la montre 2 est placée sur le support de réception 24, en regard de ce fond 30. En variante non représentée, le capteur de présence de la montre 2 et/ou de fermeture du couvercle 14 est constitué du système optique 10 de détection de position des aiguilles 6 de la montre 2. Les moyens 26 d'analyse de données sont par exemple configurés pour déclencher un processus de remise à l'heure de la montre 2 sur la base d'un signal de détection reçu du capteur 16, comme cela sera détaillé par la suite.The sensor 16 for the presence of the watch 2 and / or the closure of the cover 14 is for example fixed in the box 4, inside or outside the receiving support 24. The sensor 16 of the presence of the watch is for example a feeler arranged in the case 4 so as to be facing the bottom side 30 of the watch case 5, when the watch 2 is placed on the receiving support 24, facing this bottom 30. In variant not shown, the presence sensor of the watch 2 and / or closure of the cover 14 consists of the optical system 10 for detecting the position of the hands 6 of the watch 2. The data analysis means 26 are for example configured to initiate a watch time reset process 2 based on a detection signal received from the sensor 16, as will be detailed later.

Les moyens d'affichage et d'activation 18 comprennent par exemple plusieurs boutons d'activation et plusieurs diodes électroluminescentes. Les diodes électroluminescentes sont destinées à fournir des indications visuelles relatives au fonctionnement de l'écrin 4, et en particulier à la remise à l'heure de la montre 2.The display and activation means 18 comprise, for example, several activation buttons and several light-emitting diodes. The light-emitting diodes are intended to provide visual indications relating to the operation of the box 4, and in particular to setting the time of the watch 2.

Comme illustré sur la figure 2, les moyens de communication 20 comprennent par exemple une prise micro-USB (de l'anglais Universal Serial Bus) 32 et un module 34 de communication avec un dispositif mobile de communication (non représenté) accompagné d'une antenne. La prise micro-USB 32 est reliée aux moyens d'alimentation électrique 23 et est destinée à permettre un rechargement électrique de ces derniers, via une source d'alimentation électrique extérieure compatible avec le format USB. Le module de communication 34 est par exemple un module de communication bidirectionnelle conforme au standard Bluetooth. En variante, le module de communication 34 peut être un module de communication bidirectionnelle conforme au standard NFC (de l'anglais Near Field Communication), ou encore un module de communication unidirectionnelle de type "programmation légère".As illustrated on the figure 2 the communication means 20 comprise for example a micro-USB (Universal Serial Bus) 32 and a communication module 34 with a mobile communication device (not shown) accompanied by an antenna. The micro-USB plug 32 is connected to the power supply means 23 and is intended to allow an electric recharging of these, via an external power source compatible with the USB format. The communication module 34 is for example a bidirectional communication module compliant with the Bluetooth standard. In a variant, the communication module 34 may be a bidirectional communication module conforming to the NFC (Near Field Communication) standard, or a one-way communication module of the "light programming" type.

Le récepteur 21 d'un signal de téléphonie mobile, par exemple un signal GSM (de l'anglais Global System for Mobile Communication), est muni d'un module de communication et d'une antenne de réception de signal.The receiver 21 of a mobile telephony signal, for example a GSM (Global System for Mobile Communication) signal, is provided with a communication module and a signal receiving antenna.

Le récepteur 22 d'un signal radio ou GPS est muni d'un module de communication et d'une antenne de réception de signal.The receiver 22 of a radio or GPS signal is provided with a communication module and a signal receiving antenna.

Comme illustré sur la figure 2, les moyens d'alimentation électrique 23 comprennent par exemple un chargeur 36 et un accumulateur 38. Le chargeur 36 est relié aux moyens 26 d'analyse de données et à la prise micro-USB 32. L'accumulateur 38 est relié au chargeur 36, par exemple via deux fils électriques 40.As illustrated on the figure 2 the power supply means 23 comprise, for example, a charger 36 and an accumulator 38. The charger 36 is connected to the data analysis means 26 and to the micro-USB jack 32. The accumulator 38 is connected to the charger 36 for example via two electrical wires 40.

Dans l'exemple de réalisation illustré sur la figure 2, les moyens 26 d'analyse de données, le moyen 28 d'entraînement du moteur pas-à-pas de la montre 2, les moyens d'affichage et d'activation 18, les moyens de communication 20, le récepteur 21 d'un signal de téléphonie mobile, le récepteur 22 d'un signal radio ou GPS, et le chargeur 36 sont tous connectés sur un circuit imprimé 42 commun.In the exemplary embodiment illustrated on the figure 2 , the data analysis means 26, the drive means 28 for driving the stepper motor of the watch 2, the display and activation means 18, the communication means 20, the receiver 21 of a mobile telephone signal, the receiver 22 of a radio or GPS signal, and the charger 36 are all connected to a common printed circuit board 42.

De préférence, les moyens de remise à l'heure 12, en particulier les moyens 26 d'analyse de données, sont adaptés pour régler l'heure de la montre 2 en fonction de l'heure courante. L'heure courante est synchronisée à l'aide d'un système de référence, par exemple un système de référence embarqué ou à distance. Un tel système de référence à distance comprend par exemple la réception, par le récepteur 22, d'un signal radio ou GPS, ou bien la réception, par les moyens de communication 20, d'un signal issu d'un réseau informatique, ou encore la réception, par le récepteur 21, d'un signal de téléphonie mobile. La réception d'un ou plusieurs de ces signaux permet de mettre à jour la référence de temps stockée dans le microprocesseur 26 ou dans le circuit imprimé 42. Par exemple, une telle référence de temps peut être fournie par un quartz de précision placé sur le circuit imprimé 42.Preferably, the time reset means 12, in particular the data analysis means 26, are adapted to adjust the time of the watch 2 according to the current time. The current time is synchronized using a reference system, for example an on-board or remote reference system. Such a reference system to distance comprises, for example, the reception by the receiver 22 of a radio or GPS signal, or the reception, by the communication means 20, of a signal originating from a computer network, or else the reception, by the receiver 21, a mobile telephony signal. The reception of one or more of these signals makes it possible to update the time reference stored in the microprocessor 26 or in the printed circuit 42. For example, such a time reference can be provided by a precision quartz placed on the printed circuit 42.

Un premier mode de réalisation de l'invention va maintenant être décrit en référence aux figures 3 et 4. Selon ce premier mode de réalisation, le moyen 28 d'entraînement du moteur pas-à-pas de la montre 2 comprend au moins une bobine 44. Dans l'exemple de réalisation illustré sur les figures 3 et 4, le moyen d'entraînement 28 comprend quatre bobines 44. Comme illustré sur la figure 4, selon cet exemple, les quatre bobines 44 sont reliées par paires en diagonale via deux conducteurs magnétiques 45, formant sensiblement une forme de croix symétrique, les bobines 44 étant disposées aux extrémités de la croix. Les bobines 44 sont avantageusement disposées de sorte que le centre 47 de la croix ainsi formée soit sensiblement en regard du centre de la boîte de montre 5 une fois celle-ci placée sur le support de réception 24, lorsque la boîte de montre 5 définit une symétrie de révolution. Cette disposition particulière des quatre bobines 44 permet d'obtenir, une fois celles-ci alimentées électriquement, un champ magnétique tournant. Ce champ magnétique tournant permet d'induire un couplage magnétique direct avec le moteur pas-à-pas de la montre 2. Les bobines 44 sont par exemple choisies de manière à ce que la valeur d'un tel champ magnétique soit typiquement de l'ordre de 0.02 Teslas. Un avantage de l'utilisation de quatre bobines 44 ainsi disposées est qu'elles permettent de faire tourner le moteur pas-à-pas de la montre 2, et donc les aiguilles 6, dans les deux sens de rotation.A first embodiment of the invention will now be described with reference to Figures 3 and 4 . According to this first embodiment, the means 28 for driving the stepper motor of the watch 2 comprises at least one coil 44. In the embodiment illustrated in FIGS. Figures 3 and 4 the drive means 28 comprises four coils 44. As shown in FIG. figure 4 according to this example, the four coils 44 are connected in pairs diagonally via two magnetic conductors 45, forming substantially a symmetrical cross shape, the coils 44 being disposed at the ends of the cross. The coils 44 are advantageously arranged so that the center 47 of the cross thus formed is substantially opposite the center of the watch case 5 when it is placed on the receiving support 24, when the watch case 5 defines a symmetry of revolution. This particular arrangement of the four coils 44 makes it possible, once these are electrically powered, to obtain a rotating magnetic field. This rotating magnetic field makes it possible to induce a direct magnetic coupling with the stepper motor of the watch 2. The coils 44 are for example chosen so that the value of such a magnetic field is typically equal to order of 0.02 Teslas. An advantage of the use of four coils 44 thus arranged is that they make it possible to turn the stepper motor of the watch 2, and thus the needles 6, in both directions of rotation.

Les bobines 44 sont chacune montées sur un noyau ferromagnétique 46 et sont alimentées via une source d'alimentation électrique. Les noyaux ferromagnétiques 46 sont par exemple constitués d'un métal ferromagnétique doux. De préférence, la source d'alimentation électrique est constituée des moyens d'alimentation électrique 23. Dans l'exemple de réalisation illustré sur les figures 3 et 4, les quatre bobines 44 sont inclinées par rapport au plan du circuit imprimé 42, vers l'intérieur du centre 47 de la disposition en croix qu'elles définissent. Les bobines 44 sont inclinées en définissant un angle avec le plan du circuit imprimé 42, la valeur de cet angle étant identique pour les quatre bobines 44. Cette disposition permet de créer avantageusement un champ magnétique horizontal à l'intérieur des bobines 44, pour que le champ magnétique tournant attaque sensiblement horizontalement le moteur pas-à-pas de la montre 2. Ceci permet d'améliorer l'efficacité du couplage magnétique.The coils 44 are each mounted on a ferromagnetic core 46 and are powered via a power source. electric. Ferromagnetic cores 46 are for example made of a soft ferromagnetic metal. Preferably, the power supply source consists of the power supply means 23. In the embodiment illustrated in FIGS. Figures 3 and 4 , the four coils 44 are inclined relative to the plane of the printed circuit 42, towards the inside of the center 47 of the cross arrangement that they define. The coils 44 are inclined by defining an angle with the plane of the printed circuit 42, the value of this angle being identical for the four coils 44. This arrangement advantageously makes it possible to create a horizontal magnetic field inside the coils 44, so that the rotating magnetic field substantially horizontally drives the stepper motor of the watch 2. This makes it possible to improve the efficiency of the magnetic coupling.

En variante non représentée, le moyen d'entraînement 28 peut par exemple comporter deux bobines 44. Cette variante de réalisation permet d'obtenir, une fois les bobines 44 alimentées électriquement, un champ magnétique horizontal. Ceci ne permet de faire tourner les aiguilles 6 de la montre 2 que dans un seul sens de rotation. Dans cette variante de réalisation, les bobines 44 sont par exemple choisies de manière à ce que la valeur du champ magnétique produit soit typiquement de l'ordre de 0.02 TeslasIn a variant that is not shown, the drive means 28 may for example comprise two coils 44. This variant embodiment makes it possible to obtain, once the coils 44 are electrically powered, a horizontal magnetic field. This makes it possible to turn the hands 6 of the watch 2 only in one direction of rotation. In this embodiment variant, the coils 44 are for example chosen so that the value of the magnetic field produced is typically of the order of 0.02 Tesla.

La figure 5 illustre un deuxième mode de réalisation de l'invention pour lequel les éléments analogues au premier mode de réalisation, décrit précédemment, sont repérés par des références identiques, et ne sont donc pas décrits à nouveau.The figure 5 illustrates a second embodiment of the invention for which elements similar to the first embodiment, described above, are identified by identical references, and are therefore not described again.

Selon ce deuxième mode de réalisation, le moyen 28 d'entraînement du moteur pas-à-pas de la montre 2 ne comprend plus de bobines, mais comprend un aimant 48 monté rotatif. Dans l'exemple de réalisation illustré sur la figure 5, l'aimant 48 est monté rotatif au moyen d'un moteur électrique 50 alimenté via les moyens d'alimentation électrique 23. L'aimant 48 est monté sur l'axe du moteur électrique 50.According to this second embodiment, the means 28 for driving the stepper motor of the watch 2 no longer comprises coils, but comprises a magnet 48 rotatably mounted. In the exemplary embodiment illustrated on the figure 5 the magnet 48 is rotatably mounted by means of an electric motor 50 supplied via the power supply means 23. The magnet 48 is mounted on the axis of the electric motor 50.

L'aimant rotatif 48 permet d'obtenir, une fois le moteur électrique 50 alimenté électriquement, un champ magnétique tournant. Ce champ magnétique tournant permet d'induire un couplage magnétique avec le moteur pas-à-pas de la montre 2. L'aimant 48 est par exemple choisi de manière à ce que la valeur d'un tel champ magnétique soit typiquement de l'ordre de 0.02 Teslas.The rotating magnet 48 provides, once the electric motor 50 electrically powered, a rotating magnetic field. This rotating magnetic field makes it possible to induce a magnetic coupling with the stepper motor of the watch 2. The magnet 48 is for example chosen so that the value of such a magnetic field is typically equal to order of 0.02 Teslas.

La vitesse du moteur électrique 50 est pilotée par le microprocesseur 26. Le moteur électrique 50 est par exemple un moteur à courant continu muni d'un encodeur. En variante, le moteur électrique 50 peut être un moteur pas-à-pas.The speed of the electric motor 50 is controlled by the microprocessor 26. The electric motor 50 is for example a DC motor equipped with an encoder. Alternatively, the electric motor 50 may be a stepper motor.

Un avantage de l'utilisation d'un aimant 48 monté rotatif est qu'il permet de faire tourner le moteur pas-à-pas de la montre 2, et donc les aiguilles 6, dans les deux sens de rotation. Ceci permet de réduire avantageusement la durée de remise à l'heure de la montre 2.An advantage of the use of a rotatably mounted magnet 48 is that it makes it possible to turn the stepper motor of the watch 2, and thus the needles 6, in both directions of rotation. This advantageously reduces the time of delivery to the watch 2 time.

Le fonctionnement de l'écrin 4 selon l'invention va maintenant être décrit. La montre 2 est initialement placée dans l'écrin 4, sur le support de réception 24.The operation of the box 4 according to the invention will now be described. The watch 2 is initially placed in the box 4, on the reception support 24.

Le procédé de remise à l'heure de la montre 2, mis en oeuvre par l'écrin 4, peut être déclenché soit manuellement par un utilisateur, soit automatiquement.The method of setting the time of the watch 2, implemented by the box 4, can be triggered either manually by a user, or automatically.

Dans le cas d'un déclenchement manuel du procédé par un utilisateur, ce dernier, après avoir refermé le couvercle 14, appuie par exemple sur un bouton de déclenchement appartenant aux moyens d'affichage et d'activation 18.In the case of manual triggering of the process by a user, the latter, after having closed the cover 14, for example presses a trigger button belonging to the display and activation means 18.

Dans le cas où l'écrin 4 comprend un capteur 16 de présence de la montre 2 et/ou de fermeture du couvercle 14, le déclenchement du procédé de remise à l'heure est effectué automatiquement, suite à une détection du capteur 16. Le capteur 16 transmet alors un signal de détection aux moyens d'analyse 26, ce qui déclenche le procédé de remise à l'heure.In the case where the box 4 comprises a sensor 16 of presence of the watch 2 and / or closure of the lid 14, the triggering of the time reset process is carried out automatically, following a detection of the sensor 16. sensor 16 then transmits a detection signal to the analysis means 26, which triggers the method of setting the time.

Dans les deux cas, le système de détection 10, commandé par les moyens d'analyse 26, déclenche une détection de la position des aiguilles 6 de la montre 2, et transmet des données de position des aiguilles aux moyens 12 de remise à l'heure de la montre 2. Plus précisément, les moyens d'analyse 26 reçoivent les données de position des aiguilles et les comparent avec la référence de temps disponible. Eventuellement, une mise à jour de la référence de temps peut être effectuée par les moyens d'analyse 26, via un système de référence à distance. La réception, par les moyens d'analyse 26, d'un signal de référence temporelle permet par exemple cette mise à jour. Les moyens d'analyse 26 déterminent alors, en fonction du résultat de la comparaison, une commande de remise à l'heure courante de la montre 2, et transmettent cette commande au moyen d'entraînement 28. Le moyen d'entraînement 28 commande alors, par couplage inductif, une rotation du rotor du moteur pas-à-pas de la montre 2, ce qui permet un déplacement des aiguilles 6 entraînées par le moteur. Le moteur pas-à-pas de la montre 2 est alors entraîné en rotation, jusqu'à ce que les aiguilles 6 atteignent une position correspondant à l'heure courante, ce qui met fin au procédé. Une vérification optique de la position correcte des aiguilles peut être ajoutée, en cas de besoin.In both cases, the detection system 10, controlled by the analysis means 26, triggers a detection of the position of the hands 6 of the watch 2, and transmits needle position data to the means 12 of delivery time of the watch 2. More precisely, the analysis means 26 receive the position data of the hands and compare them with the available time reference. Optionally, an updating of the time reference can be performed by the analysis means 26, via a remote reference system. The reception, by the analysis means 26, of a temporal reference signal allows for example this update. The analysis means 26 then determines, based on the result of the comparison, a command to reset the current time of the watch 2, and transmit this command to the drive means 28. The drive means 28 then commands , by inductive coupling, a rotation of the rotor of the stepper motor of the watch 2, which allows a movement of the needles 6 driven by the engine. The stepper motor of the watch 2 is then rotated, until the hands 6 reach a position corresponding to the current time, which terminates the process. An optical check of the correct position of the needles can be added, if necessary.

Un exemple d'un déclenchement automatique du procédé de remise à l'heure d'une montre 2 à deux aiguilles 6, dans le cas particulier où l'écrin 4 comprend un capteur 16 de présence de la montre 2 et où le système de détection 10 comprend un capteur optique, est fourni par la séquence suivante :

  • détection, par le capteur 16, de la présence de la montre 2 dans l'écrin 4 ;
  • déclenchement, par les moyens d'analyse 26, du procédé de remise à l'heure de la montre 2 ;
  • transmission au moyen d'entraînement 28, par les moyens d'analyse 26, d'une commande de mise en rotation du moteur pas-à-pas de la montre 2 ;
  • mise en rotation à haute vitesse (typiquement à une fréquence de 60 Hz), par le moyen d'entraînement 28, du moteur pas-à-pas de la montre 2. Si le moteur pas-à-pas est activé en mode normal toutes les 20 secondes, soit 180 positions par tour pour l'aiguille des minutes, il faut au maximum 36 secondes pour faire passer les deux aiguilles 6 devant le capteur optique ;
  • détection, par le capteur optique, de la position des aiguilles 6, et transmission des données de position des aiguilles 6 aux moyens d'analyse 26 ;
  • calcul, par les moyens d'analyse 26, de la nouvelle position des aiguilles 6 en fonction de la référence de temps interne ;
  • transmission au moyen d'entraînement 28, par les moyens d'analyse 26, d'une commande de remise à l'heure courante de la montre 2 ;
  • positionnement, par le moyen d'entraînement 28, des aiguilles 6 de la montre 2, à haute vitesse (typiquement à une fréquence de 60 Hz).
An example of an automatic triggering of the method of setting the time of a watch 2 with two hands 6, in the particular case where the box 4 comprises a sensor 16 of presence of the watch 2 and where the detection system 10 comprises an optical sensor, is provided by the following sequence:
  • detection, by the sensor 16, of the presence of the watch 2 in the case 4;
  • triggering, by the analysis means 26, the method of setting the time of the watch 2;
  • transmission to the drive means 28, by the analysis means 26, a command for rotating the stepper motor of the watch 2;
  • high-speed rotation (typically at a frequency of 60 Hz), by the drive means 28, of the stepper motor of the watch 2. If the step-by-step motor is activated in normal mode all the 20 seconds, ie 180 positions per revolution for the minute hand, it takes a maximum of 36 seconds to pass the two hands 6 in front of the optical sensor;
  • detection, by the optical sensor, of the position of the hands 6, and transmission of the position data of the hands 6 to the analysis means 26;
  • calculating, by the analysis means 26, the new position of the hands 6 as a function of the internal time reference;
  • transmission to the drive means 28, by the analysis means 26, a command to reset the current time of the watch 2;
  • positioning, by the drive means 28, the needles 6 of the watch 2, at high speed (typically at a frequency of 60 Hz).

Dans la variante selon laquelle le système de détection 10 comprend une caméra et non un capteur optique, la première étape de mise en rotation du moteur pas-à-pas de la montre 2, pour faire passer les aiguilles 6 devant le système de détection, n'est plus nécessaire.In the variant according to which the detection system 10 comprises a camera and not an optical sensor, the first step of rotating the stepper motor of the watch 2, to pass the hands 6 in front of the detection system, no longer necessary.

Claims (16)

Ecrin (4) pour montre électromécanique (2) équipée d'un moteur pas-à-pas pour l'entraînement des aiguilles (6) de la montre (2), l'écrin (4) comprenant : - un coffret (8) comprenant un support (24) de réception de la montre; l'écrin (4) est configuré pour contenir un type et/ou une forme de montre électromécanique prédéfini(es); - un système (10) de détection de position des aiguilles (6) de la montre; - des moyens (12) de remise à l'heure de la montre, reliés au système (10) de détection de position des aiguilles, et configurés pour remettre à l'heure la montre (2) sur la base d'informations reçues du système (10) de détection de position des aiguilles et d'une référence de temps, lorsque la montre (2) est placée sur le support de réception (24); caractérisé en ce que l'écrin (4) est configuré pour contenir un type et/ou une forme de montre électromécanique prédéfinie, et
en ce que les moyens de remise à l'heure (12) comprennent un moyen (28) d'entraînement du moteur pas-à-pas spécifique du type de la montre électromécanique, le moyen d'entraînement (28) étant agencé dans l'écrin (4) de sorte à être en regard du moteur pas-à-pas, lorsque la montre (2) est placée sur le support de réception (24), et étant configuré pour commander une rotation directe d'un rotor du moteur pas-à-pas par couplage inductif.Box (4) for an electromechanical watch (2) equipped with a stepper motor for driving the hands (6) of the watch (2), the box (4) comprising: - a box (8) comprising a support (24) for receiving the watch; the case (4) is configured to contain a predefined electromechanical watch type and / or shape; a system (10) for detecting the position of the hands (6) of the watch; - means (12) for setting the time of the watch, connected to the system (10) for detecting the position of the hands, and configured to reset the time (2) on the basis of information received from the a system (10) for detecting the position of the hands and a time reference when the watch (2) is placed on the receiving medium (24); characterized in that the case (4) is configured to contain a predefined electromechanical watch type and / or shape, and
in that the time-setting means (12) comprise means (28) for driving the stepper motor specific to the type of the electromechanical watch, the drive means (28) being arranged in the box (4) so as to face the stepping motor, when the watch (2) is placed on the receiving support (24), and being configured to control a direct rotation of an engine rotor step-by-step inductive coupling. Ecrin (4) selon la revendication 1, caractérisé en ce que le moyen d'entraînement (28) comprend au moins une bobine (44) montée sur un noyau ferromagnétique (46) et alimentée via des moyens d'alimentation électrique (23).Case (4) according to claim 1, characterized in that the drive means (28) comprises at least one coil (44) mounted on a ferromagnetic core (46) and powered via power supply means (23). Ecrin (4) selon la revendication 2, caractérisé en ce que le noyau ferromagnétique (46) est constitué d'un métal ferromagnétique doux.Case (4) according to claim 2, characterized in that the ferromagnetic core (46) is made of a soft ferromagnetic metal. Ecrin (4) selon la revendication 1, caractérisé en ce que le moyen d'entraînement (28) comprend un aimant (48) monté rotatif.Box (4) according to claim 1, characterized in that the drive means (28) comprises a magnet (48) rotatably mounted. Ecrin (4) selon la revendication 4, caractérisé en ce que l'aimant (48) est monté sur un axe d'un moteur électrique (50).Case (4) according to claim 4, characterized in that the magnet (48) is mounted on an axis of an electric motor (50). Ecrin (4) selon l'une quelconque des revendications précédentes, caractérisé en ce que le moyen d'entraînement (28) est agencé dans l'écrin (4) de sorte à être du côté du fond (30) de la boîte de la montre (5) lorsque la montre (2) est placée sur le support de réception (24), en regard dudit fond (30).Box (4) according to any one of the preceding claims, characterized in that the drive means (28) is arranged in the box (4) so as to be on the bottom side (30) of the box of the shows (5) when the watch (2) is placed on the receiving support (24), facing said bottom (30). Ecrin (4) selon l'une quelconque des revendications précédentes, caractérisé en ce que le système (10) de détection de position des aiguilles est un système optique.Box (4) according to any one of the preceding claims, characterized in that the system (10) for detecting the position of the needles is an optical system. Ecrin (4) selon la revendication 7, caractérisé en ce que le système optique (10) de détection de position des aiguilles comprend une caméra (101) agencée de sorte à être sensiblement en regard des aiguilles (6) de la montre (2), lorsque la montre (2) est placée sur le support de réception (24).Case (4) according to claim 7, characterized in that the optical system (10) for detecting the position of the needles comprises a camera (101) arranged so as to be substantially facing the hands (6) of the watch (2) when the watch (2) is placed on the receiving support (24). Ecrin (4) selon la revendication 7, caractérisé en ce que le système optique (10) de détection de position des aiguilles comprend un capteur optique agencé de sorte à être en regard des aiguilles (6) de la montre (2), lorsque la montre (2) est placée sur le support de réception (24).Case (4) according to claim 7, characterized in that the optical system (10) for detecting the position of the needles comprises an optical sensor arranged to be opposite the hands (6) of the watch (2), when the watch (2) is placed on the receiving support (24). Ecrin (4) selon l'une des revendications 7 à 9, caractérisé en ce que l'écrin (4) comprend en outre une pièce de rabat (14) montée sur le coffret (8), le système optique (10) étant fixé à l'intérieur de la pièce de rabat (14) de sorte à être en regard des aiguilles (6) de la montre (2), lorsque la pièce de rabat (14) est refermée sur le coffret (8) et que la montre (2) est placée sur le support de réception (24).Box (4) according to one of claims 7 to 9, characterized in that the box (4) further comprises a flap piece (14) mounted on the box (8), the optical system (10) being fixed inside the flap piece (14) so as to face the needles (6) of the watch (2), when the flap piece (14) is closed on the casing (8) and that the watch (2) is placed on the receiving support (24). Ecrin (4) selon la revendication 1, caractérisé en ce que le moyen d'entraînement (28) comprend quatre bobines (44), qui sont reliées par paires en diagonale via deux conducteurs magnétiques (45), formant sensiblement une forme de croix symétrique, où les bobines (44) sont disposées aux extrémités de la croix, et en ce que les bobines (44) sont disposées de sorte qu'un centre (47) de la croix ainsi formée soit sensiblement en regard du centre d'une boîte de montre (5) placée sur le support de réception (24) de telle manière à générer un champ tournant une fois les bobines alimentées électriquement pour pouvoir faire tourner le rotor du moteur pas-à-pas de la montre (2) dans les deux sens de rotation.Case (4) according to claim 1, characterized in that the drive means (28) comprises four coils (44), which are connected in pairs diagonally via two magnetic conductors (45), forming substantially a symmetrical cross shape , wherein the coils (44) are disposed at the ends of the cross, and in that the coils (44) are arranged so that a center (47) of the cross thus formed is substantially facing the center of a box watch (5) placed on the receiving support (24) in such a way as to generate a rotating field once the coils have been electrically powered so as to be able to rotate the watch stepper motor rotor (2) in both sense of rotation. Ecrin (4) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'écrin (4) comprend en outre un couvercle (14), et un capteur (16) de présence de la montre et/ou de fermeture du couvercle ; ledit capteur (16) étant relié aux moyens (12) de remise à l'heure de la montre (2), les moyens de remise à l'heure (12) étant configurés pour déclencher un processus de remise à l'heure de la montre (2) sur la base d'un signal de détection reçu du capteur (16).Box (4) according to any one of the preceding claims, characterized in that the box (4) further comprises a cover (14), and a sensor (16) for the presence of the watch and / or closure of the lid ; said sensor (16) being connected to the means (12) for setting the time of the watch (2), the time setting means (12) being configured to trigger a process of setting the time of the shows (2) on the basis of a detection signal received from the sensor (16). Ecrin (4) selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens (12) de remise à l'heure de la montre (2) sont adaptés pour régler l'heure de la montre (2) en fonction de l'heure courante, l'heure courante étant synchronisée à l'aide d'un système de référence (20, 21, 22, 26).Case (4) according to any one of the preceding claims, characterized in that the means (12) for setting the time of the watch (2) are adapted to adjust the time of the watch (2) according to the current time, the current time being synchronized using a reference system (20, 21, 22, 26). Ecrin (4) selon la revendication 13, caractérisé en ce que le système de référence est un système de référence à distance, qui comprend la réception d'un signal radio ou GPS ou issu d'un réseau informatique ou de téléphonie mobile.Box (4) according to claim 13, characterized in that the reference system is a remote reference system, which comprises the reception of a radio or GPS signal or from a computer network or mobile telephony. Ecrin (4) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'écrin (4) comprend en outre des moyens (34) de communication avec un dispositif mobile de communication.Box (4) according to any one of the preceding claims, characterized in that the box (4) further comprises means (34) for communicating with a mobile communication device. Ensemble (1) comprenant une montre électromécanique (2) équipée d'un moteur pas-à-pas, et un écrin (4) de réception de la montre (2), caractérisé en ce que l'écrin (4) est conforme à l'une quelconque des revendications précédentes.Assembly (1) comprising an electromechanical watch (2) equipped with a stepper motor, and a box (4) for receiving the watch (2), characterized in that the box (4) complies with any one of the preceding claims.
EP18194698.9A 2017-10-23 2018-09-17 Case for electromechanical watch and assembly comprising same Active EP3579061B1 (en)

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EP (2) EP3474086A1 (en)
JP (1) JP6706657B2 (en)
KR (1) KR102099514B1 (en)
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Also Published As

Publication number Publication date
TWI685729B (en) 2020-02-21
KR20190045069A (en) 2019-05-02
CN109691828A (en) 2019-04-30
CN109691828B (en) 2021-01-08
JP2019078753A (en) 2019-05-23
US11144013B2 (en) 2021-10-12
EP3579061B1 (en) 2021-03-10
US20190121297A1 (en) 2019-04-25
TW201931033A (en) 2019-08-01
EP3474086A1 (en) 2019-04-24
JP6706657B2 (en) 2020-06-10
KR102099514B1 (en) 2020-04-10

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