EP3318933A1 - Device for immobilising and/or winding a marine chronometer - Google Patents

Device for immobilising and/or winding a marine chronometer Download PDF

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Publication number
EP3318933A1
EP3318933A1 EP16196926.6A EP16196926A EP3318933A1 EP 3318933 A1 EP3318933 A1 EP 3318933A1 EP 16196926 A EP16196926 A EP 16196926A EP 3318933 A1 EP3318933 A1 EP 3318933A1
Authority
EP
European Patent Office
Prior art keywords
cradle
watch
winding
magnetic
chronometer
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
EP16196926.6A
Other languages
German (de)
French (fr)
Other versions
EP3318933B1 (en
Inventor
Jérôme Mace
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Breguet SA
Original Assignee
Montres Breguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to CH01463/16A priority Critical patent/CH713106A2/en
Priority to EP16196926.6A priority patent/EP3318933B1/en
Priority to US15/730,900 priority patent/US10401797B2/en
Priority to JP2017204997A priority patent/JP6483217B2/en
Priority to CN201711057817.2A priority patent/CN108021016B/en
Publication of EP3318933A1 publication Critical patent/EP3318933A1/en
Priority to HK18113084.0A priority patent/HK1253935A1/en
Application granted granted Critical
Publication of EP3318933B1 publication Critical patent/EP3318933B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1473—Supports and feet for supporting the clockwork
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1406—Means for fixing the clockwork pieces on other objects (possibly on walls)
    • G04B37/1426—Means whereby the clockwork piece may move with regard to its suspension device
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/006—Mechanical winding up; winding up with special equipment
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/02—Removably-mounted keys or the like
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B41/00—Locking or holding devices for pendulums, chimes, or the like, for use during transport
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon

Definitions

  • the invention relates to a marine chronometer, comprising a watch generally large format for keeping time on boats.
  • a watch is attached to a support via a cardan suspension so that the watch is tilting in all directions relative to the support.
  • the cardan suspension thus ensures the watch and more precisely the dial of the watch a horizontal position regardless of the movements of the boat.
  • a cardan suspension is, however, fragile and supports movement, shocks, especially because of the weight of the watch it carries.
  • a marine chronometer must be able to be used in difficult climatic conditions and must in particular withstand the water.
  • the watch is equipped with a waterproof case.
  • the sealing of the mechanical contact zone between the mechanism of the watch, inside the housing, and the winding mechanism, positioned outside the watch case, generally provided by a seal is not always guaranteed regardless of the conditions of use, for example in the case of a time setting the efficiency of the seal can be reduced.
  • the invention proposes a new marine chronometer, not exhibiting at least one of the disadvantages of known marine chronometers described above.
  • the invention provides a marine chronometer comprising a watch mounted tiltable on a support via a cardan suspension, chronometer characterized in that the support also comprises a cradle movable in translation between a rest position where the watch is free movement on the cardan suspension, and a holding position where the watch is resting on the cradle.
  • the cradle in the rest position, supports the weight of the watch, thus unloading the cardan suspension.
  • the cradle comprises magnetic means capable of cooperating with associated magnetic means of the watch to immobilize the watch in the cradle when the cradle is in the holding position.
  • the cradle may also have an intermediate position between the rest position and the holding position, an intermediate position in which the magnetic means of the cradle are adapted to cooperate with the associated magnetic means of the watch to orient the watch (initially in free rotation on the cardan suspension relative to the cradle, before immobilizing it in the cradle.
  • the lifting mechanism is for example manually operated by a lever.
  • the watch may comprise a mechanism for winding the barrel of its watch movement and which comprises a winding rotor engaged with a winding train of the conventional mechanical watch movement which will not be described in detail.
  • the rotor comprises a plurality of magnetic devices distributed on an outer periphery of the rotor to form the magnetic means of the watch adapted to cooperate with the magnetic means of the cradle when the cradle is in the holding position or in the intermediate position.
  • the cradle can in turn comprise an annular stator comprising a plurality of magnetic devices distributed over an inner periphery of the stator to form the magnetic means of the cradle.
  • the stator may be a toothed wheel adapted to mesh with a winding pinion arranged outside the watch and independent thereof when the cradle is in the holding position.
  • the cradle in the holding position, the cradle can be used on the one hand to immobilize and support the watch, and on the other hand to reassemble the mechanism of the watch.
  • the reassembly can be advantageously performed without having to return the housing and thus keeps the reading of the time during the winding operation.
  • the winding means comprises an annular stator comprising a plurality of magnetic devices distributed on an inner periphery of the stator, the stator being movable between the winding position and the rest position, the stator being a suitable toothed wheel. to mesh with a winding pinion arranged outside the watch and independent thereof when the stator is in the winding position.
  • the invention relates to a marine chronometer comprising a watch 10 mounted tilting on a support 30 via a cardan suspension.
  • the watch 10 comprises a housing 11 in the form of a sphere portion in which is housed the clock movement M of the watch, the driving means of which are formed by a barrel B.
  • the casing 11 is closed in a sealed manner by an ice under which are positioned the dial C, the hands A, as well as the watch movement as it is visible in the figure 1a .
  • the cardan suspension of the watch 10, known per se, is simply represented by a ring 12 of suspension; the mechanical connections between the ring 12 and the support 30 are not shown for the sake of clarity of the figures.
  • the chronometer according to the invention is characterized in that the support also comprises a cradle 20 movable in translation between a rest position ( Fig. 1 ) where the watch is free of movement on the cardan suspension, and a holding position ( Fig. 2a , 3 where the watch is resting on the cradle.
  • the cradle has an intermediate position between the rest position and the holding position, an intermediate position in which the magnetic means of the cradle are adapted to cooperate with the associated magnetic means of the watch to orient the watch in the cradle.
  • the cradle is here movable in translation in a direction substantially perpendicular to the support.
  • the lifting mechanism comprises lever 33 and two pairs of rods 34, 35 (cf. Fig. 1 , 2a, 2c in particular), each pair of connecting rods comprising two connecting rods 34, 35 associated in scissors and each pair of connecting rod being coupled to a holding pin 31 in the following manner.
  • a pair of connecting rods includes two connecting rods 34, 35 made in the following manner.
  • a connecting rod 34 comprises a foot articulated by a pivot connection with the support 30 and a free end of the connecting rod 34 is mechanically articulated with a bracket 31 of the cradle.
  • the connecting rod 34 comprises an elastic blade 34b which makes it possible to pinch the lugs of the stator 31a and guarantees a good locking of the housing.
  • a connecting rod 35 comprises a foot hinged by a pivot connection with the support 30 and a free end of the connecting rod 35 has an oblong opening 36 extending along a longitudinal axis of the connecting rod 35.
  • the two connecting rods 34, 35 are associated together by a pivot link axis 35a passing between the two ends of the connecting rod 24 and between the foot and the oblong opening 36 of the rod 35 to form a scissors effect.
  • the free ends of the two rods 35 are rigidly connected together so that the movement of one of the rods 35 mechanically drives an identical movement of the other rod 35.
  • the lever 33 has two sides with a substantially L-shape or in "1"; a free end of a large side of the lever forms a grip handle 37; a free end of a small side 38 of the lever is slidably mounted in the oblong opening 36 of the rod 35; two notches 36a, 36b in the oblong opening make it possible to immobilize the free end of the short side of the lever in predefined positions; finally an intersection between the short side and the long side of the lever 33 is articulated with the support 30 by a pivot connection.
  • a pair of rods 34, 35 form a closed chisel, the free end of the small side 38 of the lever being positioned in the oblong opening on the side of the axis 35a of the scissors.
  • a traction / rotation on the handle 37 of the lever causes a displacement of the free end of the short side 38 of the lever in the oblong opening 36 towards the free end of the rod 35, displacement which in turn causes an elevation of the axis 35a of the scissors and by ricochet an elevation of the free end of the connecting rod 34 and the fixing lug 31a of the cradle along the holding axis 31.
  • a traction / rotation of the lever 33 thus causes a translation movement of the cradle 20 along the holding pins.
  • the cradle 20 comprises magnetic means 22 capable of cooperating with associated magnetic means 14 of the watch 10 to immobilize the watch in the cradle when the cradle is in the holding position.
  • the cradle has in the example shown an annular shape and its magnetic means are distributed on an inner periphery of the cradle.
  • the magnetic means 14 of the watch comprise a plurality of magnetic devices distributed around the periphery of the watch case 11, preferably inside the case tight, in a plane substantially parallel to the ice plane of the watch.
  • the magnetic coupling between the magnetic means of the cradle and the magnetic means of the watch makes it possible to orient the watch with respect to the cradle to balance the weight of the watch when it rests on the cradle.
  • the cradle 20 of the support 30 allows the winding of the watch mechanical clock movement of the watch, in addition to its immobilization.
  • the watch 10 comprises a mechanism comprising a winding rotor 13, and the magnetic means 14 comprise a plurality of magnetic devices distributed over an outer periphery of the rotor to form the magnetic means of the watch adapted to cooperate with the magnetic means the cradle when the cradle is in the holding position or in the intermediate position.
  • the rotor 13 is associated with a gear 13a coupled in known manner to the usual elements of the winding gears of the barrel.
  • the cradle 20 comprises meanwhile an annular stator 21, here in the form of a toothed wheel ( Fig. 3 ) and rotatably mounted relative to the support.
  • the stator of the cradle comprises a plurality of magnetic devices 22 distributed over a inner rim of the stator to form the magnetic means of the cradle.
  • the cradle also comprises a housing 23 to protect the outer circumference of the stator (toothed wheel).
  • magnets permanent or not, or magnetic parts capable of being magnetically coupled to magnets.
  • magnets can be used to make the magnetic devices 22 of the cradle and magnetic parts are used to make the magnetic devices 14 of the watch, or vice versa, or magnets are chosen to make the magnetic devices of the cradle. and those of the watch.
  • the choice of the magnetic devices, their dimensions, their magnetic force, their number, their distribution on the periphery of the cradle and on the circumference of the watch are chosen according to the magnetic force sought to immobilize the watch on the cradle and / or to drive the winding rotor 13 in rotation.
  • the cradle according to the embodiment shown in the figures is used in the following manner.
  • the rest position Figs. 5b, 5c
  • the cradle rests on the stand and is away from the watch;
  • the magnetic means 22 of the cradle and the magnetic means 14 of the watch are spaced from each other so that there is no magnetic coupling between them; the watch is thus free of movement on the cardan suspension.
  • the cradle 20 When the user pulls on the handle 37 of the lever 33, the cradle is raised by the mechanism 32 to the intermediate position (corresponding to the notch 36a): the cradle 20 is close to the case 11 of the watch without being in contact and where the magnetic means 22 of the cradle are magnetically coupled with the magnetic means 14 of the watch ( Fig. 5d ).
  • the magnetic devices 22 of the stator attract the magnetic devices 14 of the watch until the axis of the stator of the cradle and the axis of the rotor of the watch are aligned, the watch being mounted movably on the cardan suspension . Brought into this position, the watch is kept still and balanced (in terms of weight) above the cradle by magnetic coupling.
  • the cradle When the user lowers the lever 33 a little more, the cradle is raised by the mechanism 32 to the holding position (notch 36b): the cradle is in contact with the case 11 of the watch so that the weight of the watch rests on the cradle, the blades 34b contributing to press the stator against the housing 11.
  • the magnetic coupling between the magnetic devices 22 of the cradle and the magnetic means 14 of the watch is then maximal.
  • the watch is immobilized on the cradle so that the cardan suspension is relieved of the weight of the watch.
  • the winding pinion 40 meshes with the stator 21 of the cradle.
  • a rotation of the key 41 rotates the winding pinion, which in turn drives the stator 21 in turn.
  • the stator rotates the rotor 13 by magnetic coupling, which makes it possible to raise the cylinder of the watch.
  • the pallets are supported on the casing 23 of the cradle and are rotated when the cradle 20 is moved in translation.
  • a counterweight 52 may be provided on each pallet to hold the pallet in abutment against the casing 23 during movements of the cradle 20.
  • the mechanism is of the scissor type, to realize the movement of raising and lowering of the stator but it is understood that according to variants of other types of lifting mechanisms can be envisaged, for example one could provide a mechanism of the knee-type single or two connecting rods or a mechanism of the knee press type or a jack system for example telescopic screw jacks or not.
  • Such mechanisms are described in particular in pages 144 and 145 of the book entitled “Elementary Mechanisms" edited by Decoopman, ISBN 97823650027 which are incorporated herein by reference.

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

Abstract

Chronomètre de marine comprenant une montre (10) montée inclinable sur un support (30) par l'intermédiaire d'une suspension à cardan(12), le support comprenant également un berceau (20) mobile en translation entre une position de repos où la montre est libre de mouvement sur la suspension à cardan, et une position de maintien où la montre est en appui sur le berceau.A marine chronometer comprising a watch (10) tiltable on a support (30) via a cardan suspension (12), the support also comprising a cradle (20) movable in translation between a rest position where the The watch is free of movement on the cardan suspension, and a holding position where the watch is resting on the cradle.

Description

Domaine technique et état de l'artTechnical field and state of the art

L'invention concerne un chronomètre de marine, comprenant une montre généralement de grand format destinée à conserver le temps sur les bateaux. De manière connue, une telle montre est fixée à un support par l'intermédiaire d'une suspension à cardan de sorte que la montre est inclinable dans toutes les directions par rapport au support. La suspension à cardan assure ainsi à la montre et plus précisément au cadran de la montre une position horizontale quels que soient les mouvements du bateau. Une suspension à cardan est toutefois fragile et supporte assez mal les déplacements, les chocs, notamment du fait du poids de la montre qu'elle porte.The invention relates to a marine chronometer, comprising a watch generally large format for keeping time on boats. In known manner, such a watch is attached to a support via a cardan suspension so that the watch is tilting in all directions relative to the support. The cardan suspension thus ensures the watch and more precisely the dial of the watch a horizontal position regardless of the movements of the boat. A cardan suspension is, however, fragile and supports movement, shocks, especially because of the weight of the watch it carries.

Également, un chronomètre de marine doit pouvoir être utilisé dans des conditions climatiques difficiles et doit en particulier résister à l'eau. De manière connue, la montre est équipée d'un boîtier étanche à l'eau. Toutefois, l'étanchéité de la zone de contact mécanique entre le mécanisme de la montre, à l'intérieur du boîtier, et le mécanisme de remontage, positionné à l'extérieur du boîtier de la montre, généralement assuré par un joint d'étanchéité n'est pas toujours garantie quelle que soit les conditions d'utilisation, par exemple dans le cas d'une mise à l'heure l'efficacité du joint d'étanchéité peut être diminuée.Also, a marine chronometer must be able to be used in difficult climatic conditions and must in particular withstand the water. In known manner, the watch is equipped with a waterproof case. However, the sealing of the mechanical contact zone between the mechanism of the watch, inside the housing, and the winding mechanism, positioned outside the watch case, generally provided by a seal is not always guaranteed regardless of the conditions of use, for example in the case of a time setting the efficiency of the seal can be reduced.

Description de l'inventionDescription of the invention

L'invention propose un nouveau chronomètre de marine, ne présentant pas au moins un des inconvénients des chronomètres de marine connus décrits ci-dessus.The invention proposes a new marine chronometer, not exhibiting at least one of the disadvantages of known marine chronometers described above.

A cet effet, l'invention propose un chronomètre de marine comprenant une montre montée inclinable sur un support par l'intermédiaire d'une suspension à cardan, chronomètre caractérisé en ce que le support comprend également un berceau mobile en translation entre une position de repos où la montre est libre de mouvement sur la suspension à cardan, et une position de maintien où la montre est en appui sur le berceau. Dit autrement, en position de repos, le berceau supporte le poids de la montre, déchargeant ainsi la suspension à cardan.For this purpose, the invention provides a marine chronometer comprising a watch mounted tiltable on a support via a cardan suspension, chronometer characterized in that the support also comprises a cradle movable in translation between a rest position where the watch is free movement on the cardan suspension, and a holding position where the watch is resting on the cradle. In other words, in the rest position, the cradle supports the weight of the watch, thus unloading the cardan suspension.

Selon un mode de réalisation, le berceau comprend des moyens magnétiques aptes à coopérer avec des moyens magnétiques associés de la montre pour immobiliser la montre dans le berceau lorsque le berceau est en position de maintien.According to one embodiment, the cradle comprises magnetic means capable of cooperating with associated magnetic means of the watch to immobilize the watch in the cradle when the cradle is in the holding position.

Le berceau peut également présenter une position intermédiaire entre la position de repos et la position de maintien, position intermédiaire dans laquelle les moyens magnétiques du berceau sont adaptés pour coopérer avec les moyens magnétiques associés de la montre pour orienter la montre (initialement en rotation libre sur la suspension à cardan par rapport au berceau, avant de l'immobiliser dans le berceau.The cradle may also have an intermediate position between the rest position and the holding position, an intermediate position in which the magnetic means of the cradle are adapted to cooperate with the associated magnetic means of the watch to orient the watch (initially in free rotation on the cardan suspension relative to the cradle, before immobilizing it in the cradle.

Selon un mode de réalisation, le support d'un chronomètre selon l'invention peut comprendre :

  • au moins un axe de maintien sur lequel le berceau est monté coulissant et
  • un mécanisme de levage de type ciseaux pour coulisser le berceau le long de l'axe de maintien entre la position de maintien et la position de repos.
According to one embodiment, the support of a chronometer according to the invention may comprise:
  • at least one holding pin on which the cradle is slidably mounted and
  • a scissor type lifting mechanism for sliding the cradle along the retaining pin between the holding position and the rest position.

Le mécanisme de levage est par exemple actionné manuellement par un levier.The lifting mechanism is for example manually operated by a lever.

Le support peut également comprendre des moyens d'isolation magnétique mobiles entre :

  • une position d'isolation où, lorsque le berceau est en position de repos, les moyens d'isolation forment un écran magnétique entre les moyens magnétiques du berceau et les moyens magnétiques de la montre et
  • une position de retrait où, lorsque le berceau est en position de maintien, les moyens d'isolation magnétique sont inactifs.
The support may also comprise moving magnetic insulation means between:
  • an isolation position where, when the cradle is in the rest position, the insulation means form a magnetic screen between the magnetic means of the cradle and the magnetic means of the watch and
  • a withdrawal position where, when the cradle is in the holding position, the magnetic insulation means are inactive.

L'utilisation de moyens d'isolation magnétique en position de repos du berceau permet d'utiliser des dispositifs magnétiques suffisamment forts pour garantir un couplage nul ou quasi nul lorsque le berceau est en position de repos, sans qu'il soit nécessaire d'avoir une distance entre le berceau au repos et la montre trop importante. Ceci permet de limiter les dimensions extérieures du chronomètre.The use of magnetic insulation means in the rest position of the cradle makes it possible to use magnetic devices which are strong enough to guarantee zero or almost zero coupling when the cradle is in the rest position, without it being necessary to have a distance between the cradle at rest and the watch too important. This makes it possible to limit the external dimensions of the chronometer.

Selon un mode de réalisation, la montre peut comprendre un mécanisme de remontage du barillet de son mouvement horloger et qui comprend un rotor de remontage en prise avec un rouage de remontage du mouvement horloger mécanique classique qui ne sera pas décrit en détail. Le rotor comprend une pluralité de dispositifs magnétiques répartis sur un pourtour extérieur du rotor pour former les moyens magnétiques de la montre adaptés pour coopérer avec les moyens magnétiques du berceau lorsque le berceau est en position de maintien ou en position intermédiaire. Le berceau peut quant à lui comprendre un stator annulaire comprenant une pluralité de dispositifs magnétiques répartis sur un pourtour intérieur du stator pour former les moyens magnétiques du berceau. Le stator peut être une roue dentée adaptée pour engrener avec un pignon de remontage disposé à l'extérieur de la montre et indépendante de celle-ci lorsque le berceau est en position de maintien. Ainsi, en position de maintien, le berceau peut être utilisé d'une part pour immobiliser et supporter la montre, et d'autre part pour remonter le mécanisme de la montre.According to one embodiment, the watch may comprise a mechanism for winding the barrel of its watch movement and which comprises a winding rotor engaged with a winding train of the conventional mechanical watch movement which will not be described in detail. The rotor comprises a plurality of magnetic devices distributed on an outer periphery of the rotor to form the magnetic means of the watch adapted to cooperate with the magnetic means of the cradle when the cradle is in the holding position or in the intermediate position. The cradle can in turn comprise an annular stator comprising a plurality of magnetic devices distributed over an inner periphery of the stator to form the magnetic means of the cradle. The stator may be a toothed wheel adapted to mesh with a winding pinion arranged outside the watch and independent thereof when the cradle is in the holding position. Thus, in the holding position, the cradle can be used on the one hand to immobilize and support the watch, and on the other hand to reassemble the mechanism of the watch.

L'invention concerne également un chronomètre de marine comprenant une montre montée inclinable sur un support par l'intermédiaire d'une suspension à cardan, chronomètre caractérisé en ce que la montre comprend un mouvement horloger mécanique comprenant un rotor de remontage en prise avec un rouage de remontage d'un barillet du mouvement horloger, et en ce que le support comprend un moyen de remontage mobile entre :

  • une position de remontage où le rotor de la montre est couplé magnétiquement avec le moyen de remontage et
  • une position de repos où le rotor de la montre est libre de rotation par rapport au moyen de remontage.
The invention also relates to a marine chronometer comprising a watch mounted tiltable on a support via a cardan suspension, chronometer characterized in that the watch comprises a mechanical watch movement comprising a winding rotor engaged with a winding gear of a watch movement cylinder, and in that the support comprises a winding means mobile between:
  • a winding position where the rotor of the watch is magnetically coupled with the winding means and
  • a rest position where the rotor of the watch is free to rotate relative to the winding means.

L'utilisation d'un couplage magnétique pour remonter le barillet de la montre permet de s'affranchir d'un passage de remontoir à travers de boitier de la montre et ainsi de réaliser un boîtier de montre parfaitement étanche.The use of a magnetic coupling to wind the barrel of the watch eliminates a winding passage through the case of the watch and thus to achieve a perfectly waterproof watch case.

En outre le remontage peut être avantageusement être réalisé sans avoir à retourner le boitier et donc permet de conserver la lecture de l'heure pendant l'opération de remontage.In addition the reassembly can be advantageously performed without having to return the housing and thus keeps the reading of the time during the winding operation.

Selon un mode de réalisation, le moyen de remontage comprend un stator annulaire comprenant une pluralité de dispositifs magnétiques répartis sur un pourtour intérieur du stator, le stator étant mobile entre la position de remontage et la position de repos, le stator étant une roue dentée adaptée pour engrener avec un pignon de remontage disposé à l'extérieur de la montre et indépendante de celle-ci lorsque le stator est en position de remontage.According to one embodiment, the winding means comprises an annular stator comprising a plurality of magnetic devices distributed on an inner periphery of the stator, the stator being movable between the winding position and the rest position, the stator being a suitable toothed wheel. to mesh with a winding pinion arranged outside the watch and independent thereof when the stator is in the winding position.

Brève description des figuresBrief description of the figures

L'invention sera mieux comprise, et d'autres caractéristiques et avantages de l'invention apparaîtront à la lumière de la description qui suit d'exemples de réalisation d'un chronomètre selon l'invention. Ces exemples sont donnés à titre non limitatif. La description est à lire en relation avec les dessins annexés dans lesquels :

  • la figure 1 est une vue du chronomètre en position de repos,
  • la figure 1 a est une vue en perspective du boitier du chronomètre hors de sa structure de support,
  • la figure 2a est une vue du chronomètre en position de maintien,
  • les figures 2b et 2c sont des vues de détails du chronomètre de la figure 2a,
  • la figure 3 est une vue partielle du mécanisme d'entraînement magnétique du chronomètre selon l'invention,
  • les figures 4a et 4b sont des vues d'un élément essentiel du chronomètre selon l'invention,
  • les figures 5a, 5b sont des vues d'un autre élément du chronomètre selon l'invention,
  • les figures, 5c, 5d, 5e sont des vues de détails partielles montrant le fonctionnement d'un chronomètre selon l'invention.
The invention will be better understood, and other features and advantages of the invention will become apparent in the light of the following description of embodiments of a chronometer according to the invention. These examples are given in a non-limiting way. The description is to be read in conjunction with the appended drawings in which:
  • the figure 1 is a view of the chronometer in the rest position,
  • the figure 1 a is a perspective view of the chronometer case out of its support structure,
  • the figure 2a is a view of the chronometer in the holding position,
  • the Figures 2b and 2c are detailed views of the chronometer of the figure 2a ,
  • the figure 3 is a partial view of the magnetic drive mechanism of the chronometer according to the invention,
  • the Figures 4a and 4b are views of an essential element of the chronometer according to the invention,
  • the Figures 5a, 5b are views of another element of the chronometer according to the invention,
  • the figures, 5c, 5d, 5th are partial detail views showing the operation of a chronometer according to the invention.

Description d'un mode de réalisation de l'inventionDescription of an embodiment of the invention

Comme dit précédemment, l'invention concerne un chronomètre de marine comprenant une montre 10 montée inclinable sur un support 30 par l'intermédiaire d'une suspension à cardan. Dans l'exemple représenté, la montre 10 comprend un boîtier 11 en forme de portion de sphère dans laquelle est logé le mouvement horloge M de la montre dont les moyens moteurs sont formés par un barillet B. Le boîtier 11 est fermé classiquement de manière étanche par une glace sous laquelle sont positionnés le cadran C, les aiguilles A, ainsi que le mouvement horloger comme cela est visible à la figure 1a. La suspension à cardan de la montre 10, connue en soi, est représentée simplement par un anneau 12 de suspension; les liaisons mécaniques entre l'anneau 12 et le support 30 ne sont pas représentées par souci de clarté des figures.As mentioned above, the invention relates to a marine chronometer comprising a watch 10 mounted tilting on a support 30 via a cardan suspension. In the example shown, the watch 10 comprises a housing 11 in the form of a sphere portion in which is housed the clock movement M of the watch, the driving means of which are formed by a barrel B. The casing 11 is closed in a sealed manner by an ice under which are positioned the dial C, the hands A, as well as the watch movement as it is visible in the figure 1a . The cardan suspension of the watch 10, known per se, is simply represented by a ring 12 of suspension; the mechanical connections between the ring 12 and the support 30 are not shown for the sake of clarity of the figures.

Le chronomètre selon l'invention est caractérisé en ce que le support comprend également un berceau 20 mobile en translation entre une position de repos (fig. 1) où la montre est libre de mouvement sur la suspension à cardan, et une position de maintien (fig. 2a, 3) où la montre est en appui sur le berceau. Dans l'exemple représenté également, le berceau présente une position intermédiaire entre la position de repos et la position de maintien, position intermédiaire dans laquelle les moyens magnétiques du berceau sont adaptés pour coopérer avec les moyens magnétiques associés de la montre pour orienter la montre dans le berceau. Le berceau est ici mobile en translation selon une direction sensiblement perpendiculaire au support.The chronometer according to the invention is characterized in that the support also comprises a cradle 20 movable in translation between a rest position ( Fig. 1 ) where the watch is free of movement on the cardan suspension, and a holding position ( Fig. 2a , 3 where the watch is resting on the cradle. In the example also shown, the cradle has an intermediate position between the rest position and the holding position, an intermediate position in which the magnetic means of the cradle are adapted to cooperate with the associated magnetic means of the watch to orient the watch in the cradle. The cradle is here movable in translation in a direction substantially perpendicular to the support.

Pour assurer la mobilité du berceau, le support comprend dans l'exemple représenté :

  • deux axes de maintien 31 positionnés de part et d'autre du berceau, axes sur lesquels le berceau est monté coulissant par l'intermédiaire de pattes de fixation 31 a percées d'un trou de diamètre ajusté au diamètre des axes de maintien 31, et
  • un mécanisme de levage de type ciseaux 32 (figs. 5) pour coulisser le berceau le long de l'axe de maintien entre la position de maintien et la position de repos ; le mécanisme de levage est ainsi mis en mouvement manuellement par un utilisateur via un levier 33.
To ensure the mobility of the cradle, the support comprises in the example shown:
  • two holding pins 31 positioned on either side of the cradle, axes on which the cradle is slidably mounted by means of fastening lugs 31 pierced with a hole of diameter fitted to the diameter of the holding pins 31, and
  • a scissor type lifting mechanism 32 ( Figs. 5 ) to slide the cradle along the holding axis between the holding position and the rest position; the lifting mechanism is thus set in motion manually by a user via a lever 33.

Plus précisément dans l'exemple représenté, le mécanisme de levage comprend le levier 33 et deux paires de bielles 34, 35 (cf fig. 1, 2a, 2c notamment), chaque paire de bielles comprenant deux bielles 34, 35 associées en ciseaux et chaque paire de bielle étant couplée à un axe de maintien 31 de la manière suivante. Une paire de bielle comprend deux bielles 34, 35 réalisées de la manière suivante. Une bielle 34 comprend un pied articulé par une liaison pivot avec le support 30 et une extrémité libre de la bielle 34 est articulée mécaniquement avec une patte de fixation 31 a du berceau. On notera également que la bielle 34 comprend une lame élastique 34b qui permet de pincer les pattes du stator 31a et garantie un bon verrouillage du boitier. Une bielle 35 comprend un pied articulé par une liaison pivot avec le support 30 et une extrémité libre de la bielle 35 présente une ouverture oblongue 36 s'étendant selon un axe longitudinal de la bielle 35. Les deux bielles 34, 35 sont associées ensemble par une liaison pivot d'axe 35a passant entre les deux extrémités de la bielle 24 et entre le pied et l'ouverture oblongue 36 de la bielle 35 pour former un effet ciseaux. Les extrémités libres des deux bielles 35 sont reliées rigidement ensemble de sorte que le mouvement de l'une des bielles 35 entraîne mécaniquement un mouvement identique de l'autre bielle 35. Le levier 33 a quant à lui deux côtés avec une forme sensiblement en L ou en « 1 » ; une extrémité libre d'un grand côté du levier forme un manche 37 de préhension ; une extrémité libre d'un petit côté 38 du levier est montée coulissante dans l'ouverture oblongue 36 de la bielle 35 ; deux crans 36a, 36b dans l'ouverture oblongue permettent d'immobiliser l'extrémité libre du petit côté du levier dans des positions prédéfinies ; enfin une intersection entre le petit côté et le grand côté du levier 33 est articulée avec le support 30 par une liaison pivot. Au repos, une paire de bielles 34, 35 forme un ciseau fermé, l'extrémité libre du petit côté 38 du levier étant positionnée dans l'ouverture oblongue du côté de l'axe 35a du ciseaux. Une traction / rotation sur le manche 37 du levier entraîne un déplacement de l'extrémité libre du petit côté 38 du levier dans l'ouverture oblongue 36 en direction de l'extrémité libre de la bielle 35, déplacement qui entraîne à son tour une élévation de l'axe 35a du ciseaux et par ricochet une élévation de l'extrémité libre de la bielle 34 et de la patte de fixation 31 a du berceau le long de l'axe de maintien 31. Une traction/ rotation du levier 33 entraîne ainsi un mouvement de translation du berceau 20 le long des axes de maintien.More specifically in the example shown, the lifting mechanism comprises lever 33 and two pairs of rods 34, 35 (cf. Fig. 1 , 2a, 2c in particular), each pair of connecting rods comprising two connecting rods 34, 35 associated in scissors and each pair of connecting rod being coupled to a holding pin 31 in the following manner. A pair of connecting rods includes two connecting rods 34, 35 made in the following manner. A connecting rod 34 comprises a foot articulated by a pivot connection with the support 30 and a free end of the connecting rod 34 is mechanically articulated with a bracket 31 of the cradle. It will also be noted that the connecting rod 34 comprises an elastic blade 34b which makes it possible to pinch the lugs of the stator 31a and guarantees a good locking of the housing. A connecting rod 35 comprises a foot hinged by a pivot connection with the support 30 and a free end of the connecting rod 35 has an oblong opening 36 extending along a longitudinal axis of the connecting rod 35. The two connecting rods 34, 35 are associated together by a pivot link axis 35a passing between the two ends of the connecting rod 24 and between the foot and the oblong opening 36 of the rod 35 to form a scissors effect. The free ends of the two rods 35 are rigidly connected together so that the movement of one of the rods 35 mechanically drives an identical movement of the other rod 35. The lever 33 has two sides with a substantially L-shape or in "1"; a free end of a large side of the lever forms a grip handle 37; a free end of a small side 38 of the lever is slidably mounted in the oblong opening 36 of the rod 35; two notches 36a, 36b in the oblong opening make it possible to immobilize the free end of the short side of the lever in predefined positions; finally an intersection between the short side and the long side of the lever 33 is articulated with the support 30 by a pivot connection. At rest, a pair of rods 34, 35 form a closed chisel, the free end of the small side 38 of the lever being positioned in the oblong opening on the side of the axis 35a of the scissors. A traction / rotation on the handle 37 of the lever causes a displacement of the free end of the short side 38 of the lever in the oblong opening 36 towards the free end of the rod 35, displacement which in turn causes an elevation of the axis 35a of the scissors and by ricochet an elevation of the free end of the connecting rod 34 and the fixing lug 31a of the cradle along the holding axis 31. A traction / rotation of the lever 33 thus causes a translation movement of the cradle 20 along the holding pins.

Le berceau 20 comprend des moyens magnétiques 22 aptes à coopérer avec des moyens magnétiques 14 associés de la montre 10 pour immobiliser la montre dans le berceau lorsque le berceau est en position de maintien. Le berceau a dans l'exemple représenté une forme annulaire et ses moyens magnétiques sont répartis sur un pourtour intérieur du berceau.The cradle 20 comprises magnetic means 22 capable of cooperating with associated magnetic means 14 of the watch 10 to immobilize the watch in the cradle when the cradle is in the holding position. The cradle has in the example shown an annular shape and its magnetic means are distributed on an inner periphery of the cradle.

Selon un mode de réalisation (non représenté) d'un chronomètre selon l'invention, les moyens magnétiques 14 de la montre comprennent une pluralité de dispositifs magnétiques répartis sur le pourtour du boîtier 11 de la montre, de préférence à l'intérieur du boîtier étanche, dans un plan sensiblement parallèle au plan de la glace de la montre. Le couplage magnétique entre les moyens magnétiques du berceau et les moyens magnétiques de la montre permet d'orienter la montre par rapport au berceau pour équilibrer le poids de la montre lorsqu'elle repose sur le berceau.According to one embodiment (not shown) of a chronometer according to the invention, the magnetic means 14 of the watch comprise a plurality of magnetic devices distributed around the periphery of the watch case 11, preferably inside the case tight, in a plane substantially parallel to the ice plane of the watch. The magnetic coupling between the magnetic means of the cradle and the magnetic means of the watch makes it possible to orient the watch with respect to the cradle to balance the weight of the watch when it rests on the cradle.

Selon le mode de réalisation représenté sur les figures, le berceau 20 du support 30 permet le remontage du barillet du mouvement horloger mécanique de la montre, en plus de son immobilisation. A cet effet, la montre 10 comprend un mécanisme comprenant un rotor 13 de remontage, et les moyens magnétiques 14 comprennent une pluralité de dispositifs magnétiques répartis sur un pourtour extérieur du rotor pour former les moyens magnétiques de la montre adaptés pour coopérer avec les moyens magnétiques du berceau lorsque le berceau est en position de maintien ou en position intermédiaire. A l'intérieur du boîtier de la montre, le rotor 13 est associé à une roue dentée 13a couplée de manière connue aux éléments habituels du rouage de remontage du barillet.According to the embodiment shown in the figures, the cradle 20 of the support 30 allows the winding of the watch mechanical clock movement of the watch, in addition to its immobilization. For this purpose, the watch 10 comprises a mechanism comprising a winding rotor 13, and the magnetic means 14 comprise a plurality of magnetic devices distributed over an outer periphery of the rotor to form the magnetic means of the watch adapted to cooperate with the magnetic means the cradle when the cradle is in the holding position or in the intermediate position. Inside the case of the watch, the rotor 13 is associated with a gear 13a coupled in known manner to the usual elements of the winding gears of the barrel.

Le berceau 20 comprend quant à lui un stator 21 annulaire, ici en forme de roue dentée (fig. 3) et monté rotatif par rapport au support. Le stator du berceau comprend une pluralité de dispositifs magnétiques 22 répartis sur un pourtour intérieur du stator pour former les moyens magnétiques du berceau. Le berceau comprend également un carter 23 pour protéger le pourtour extérieur du stator (roue dentée).The cradle 20 comprises meanwhile an annular stator 21, here in the form of a toothed wheel ( Fig. 3 ) and rotatably mounted relative to the support. The stator of the cradle comprises a plurality of magnetic devices 22 distributed over a inner rim of the stator to form the magnetic means of the cradle. The cradle also comprises a housing 23 to protect the outer circumference of the stator (toothed wheel).

Enfin le support est complété par un pignon de remontage 40 adapté pour engrener avec le stator 21 lorsque le berceau est en position de maintien, une ouverture 24 dans le carter étant prévue pour permettre la liaison mécanique entre le pignon de remontage 40 et le stator 21. Le pignon de remontage 40 qui est disposé à l'extérieur du boitier et indépendant de la montre, peut être entraîné en rotation manuellement à l'aide d'une clé 41, d'une molette, d'une manivelle, ... complété en option par un dispositif d'assistance électrique. Le pignon de remontage et le berceau forment ensemble un moyen de remontage mobile entre :

  • une position de remontage (correspondant à la position de maintien du berceau) où le rotor 13 de la montre est couplé magnétiquement avec le moyen de remontage notamment avec le stator 21, le boîtier de la montre étant par ailleurs immobilisé dans le berceau, et
  • une position de repos (correspondant à la position de repos du berceau) où le rotor de la montre est libre de rotation par rapport au moyen de remontage.
Finally the support is completed by a winding pinion 40 adapted to mesh with the stator 21 when the cradle is in the holding position, an opening 24 in the housing being provided to allow the mechanical connection between the winding pinion 40 and the stator 21 The winding pinion 40 which is arranged outside the housing and independent of the watch, can be rotated manually by means of a key 41, a wheel, a crank, etc. optionally supplemented by an electric assist device. The winding gear and the cradle together form a mobile winding means between:
  • a winding position (corresponding to the holding position of the cradle) where the rotor 13 of the watch is magnetically coupled with the winding means in particular with the stator 21, the case of the watch being moreover immobilized in the cradle, and
  • a rest position (corresponding to the rest position of the cradle) where the rotor of the watch is free to rotate relative to the winding means.

Par dispositifs magnétiques on entend dans toute la présente description des aimants, permanents ou non, ou des pièces magnétiques aptes à être couplées magnétiquement à des aimants. Par exemple, des aimants peuvent utilisés pour réaliser les dispositifs magnétiques 22 du berceau et des pièces magnétiques sont utilisées pour réaliser les dispositifs magnétiques 14 de la montre, ou bien l'inverse, ou encore des aimants sont choisis pour réaliser les dispositifs magnétiques du berceau et ceux de la montre. Le choix des dispositifs magnétiques, leurs dimensions, leur force magnétique, leur nombre, leur répartition sur le pourtour du berceau et sur le pourtour de la montre sont choisis en fonction de la force magnétique recherchée pour immobiliser la montre sur le berceau et / ou pour entraîner le rotor de remontage 13 en rotation.By magnetic devices is meant throughout the present description magnets, permanent or not, or magnetic parts capable of being magnetically coupled to magnets. For example, magnets can be used to make the magnetic devices 22 of the cradle and magnetic parts are used to make the magnetic devices 14 of the watch, or vice versa, or magnets are chosen to make the magnetic devices of the cradle. and those of the watch. The choice of the magnetic devices, their dimensions, their magnetic force, their number, their distribution on the periphery of the cradle and on the circumference of the watch are chosen according to the magnetic force sought to immobilize the watch on the cradle and / or to drive the winding rotor 13 in rotation.

Le berceau selon le mode de réalisation représenté sur les figures est utilisé de la manière suivante. En position de repos (figs. 5b, 5c), le berceau repose sur le support et est éloigné de la montre ; les moyens magnétiques 22 du berceau et les moyens magnétiques 14 de la montre sont éloignés les uns des autres de sorte qu'il n'y a pas de couplage magnétique entre eux ; la montre est ainsi libre de mouvement sur la suspension à cardan.The cradle according to the embodiment shown in the figures is used in the following manner. In the rest position ( Figs. 5b, 5c ), the cradle rests on the stand and is away from the watch; the magnetic means 22 of the cradle and the magnetic means 14 of the watch are spaced from each other so that there is no magnetic coupling between them; the watch is thus free of movement on the cardan suspension.

Lorsque l'utilisateur tire sur le manche 37 du levier 33, le berceau est levé par le mécanisme 32 jusqu'à la position intermédiaire (correspondant au cran 36a) : le berceau 20 est proche du boîtier 11 de la montre sans être en contact et où les moyens magnétiques 22 du berceau sont couplés magnétiquement avec les moyens magnétiques 14 de la montre (fig. 5d). Ainsi, les dispositifs magnétiques 22 du stator attirent les dispositifs magnétiques 14 de la montre jusqu'à ce que l'axe du stator du berceau et l'axe du rotor de la montre soient alignés, la montre étant montée mobile sur la suspension à cardan. Amenée dans cette position, la montre est maintenue immobile et à l'équilibre (en terme de poids) au-dessus du berceau par couplage magnétique.When the user pulls on the handle 37 of the lever 33, the cradle is raised by the mechanism 32 to the intermediate position (corresponding to the notch 36a): the cradle 20 is close to the case 11 of the watch without being in contact and where the magnetic means 22 of the cradle are magnetically coupled with the magnetic means 14 of the watch ( Fig. 5d ). Thus, the magnetic devices 22 of the stator attract the magnetic devices 14 of the watch until the axis of the stator of the cradle and the axis of the rotor of the watch are aligned, the watch being mounted movably on the cardan suspension . Brought into this position, the watch is kept still and balanced (in terms of weight) above the cradle by magnetic coupling.

Lorsque l'utilisateur abaisse un peu plus le levier 33, le berceau est levé par le mécanisme 32 jusqu'à la position de maintien (cran 36b) : le berceau est en contact avec le boîtier 11 de la montre de sorte que le poids de la montre repose sur le berceau, les lames 34b contribuant à plaquer le stator contre le boitier 11. Le couplage magnétique entre les dispositifs magnétiques 22 du berceau et les moyens magnétiques 14 de la montre est alors maximal. La montre est immobilisée sur le berceau de sorte que la suspension à cardan est soulagée du poids de la montre. Dans cette position également, le pignon de remontage 40 engrène avec le stator 21 du berceau. Ainsi une rotation de la clé 41 entraîne en rotation le pignon de remontage, qui entraîne à son tour en rotation le stator 21. A son tour, le stator entraîne en rotation le rotor 13 par couplage magnétique, ce qui permet de remonter le barillet de la montre.When the user lowers the lever 33 a little more, the cradle is raised by the mechanism 32 to the holding position (notch 36b): the cradle is in contact with the case 11 of the watch so that the weight of the watch rests on the cradle, the blades 34b contributing to press the stator against the housing 11. The magnetic coupling between the magnetic devices 22 of the cradle and the magnetic means 14 of the watch is then maximal. The watch is immobilized on the cradle so that the cardan suspension is relieved of the weight of the watch. In this position also, the winding pinion 40 meshes with the stator 21 of the cradle. Thus a rotation of the key 41 rotates the winding pinion, which in turn drives the stator 21 in turn. In turn, the stator rotates the rotor 13 by magnetic coupling, which makes it possible to raise the cylinder of the watch.

Un chronomètre selon l'invention est avantageusement complété par des moyens d'isolation magnétique 50 mobiles entre :

  • une position d'isolation où, lorsque le berceau est en position de repos, les moyens d'isolation forment un écran magnétique entre les moyens magnétiques du berceau et les moyens magnétiques de la montre et
  • une position de retrait où, lorsque le berceau est en position de maintien, les moyens d'isolation magnétique sont inactifs.
A chronometer according to the invention is advantageously completed by magnetic insulation means 50 movable between:
  • an isolation position where, when the cradle is in the rest position, the insulation means form a magnetic screen between the magnetic means of the cradle and the magnetic means of the watch and
  • a withdrawal position where, when the cradle is in the holding position, the magnetic insulation means are inactive.

Dans l'exemple représenté sur les figures, les moyens d'isolation magnétique sont constitués d'une pluralité de palettes 51 réalisées en un matériau de blindage magnétique; les palettes sont montées côte à côte sensiblement en cercle à l'intérieur du berceau ; les palettes sont montées pivotantes chacune par rapport à un axe de pivotement sensiblement parallèle au support, entre :

  • une position d'isolation, correspondant à la position de repos du berceau 20, où les palettes sont déployées pour recouvrir les dispositifs magnétiques 22 du berceau ; tout couplage magnétique résiduel entre le stator et le rotor est ainsi neutralisé et
  • une position de retrait, correspondant à la position de maintien du berceau, où les palettes sont écartées du berceau et ne forment plus écran magnétique entre les dispositifs magnétiques du rotor et ceux du stator.
In the example shown in the figures, the magnetic insulation means consist of a plurality of vanes 51 made of a magnetic shielding material; the pallets are mounted side by side substantially in a circle within the cradle; the pallets are pivotally mounted each with respect to a pivot axis substantially parallel to the support, between:
  • an isolation position, corresponding to the rest position of the cradle 20, where the pallets are deployed to cover the magnetic devices 22 of the cradle; any residual magnetic coupling between the stator and the rotor is thus neutralized and
  • a withdrawal position, corresponding to the holding position of the cradle, where the pallets are spaced from the cradle and no longer form a magnetic screen between the magnetic devices of the rotor and those of the stator.

En pratique ici, les palettes sont en appui sur le carter 23 du berceau et sont entraînées en rotation lorsque le berceau 20 est déplacé en translation. Un contrepoids 52 peut être prévu sur chaque palette pour maintenir la palette en appui contre le carter 23 lors des mouvements du berceau 20.In practice here, the pallets are supported on the casing 23 of the cradle and are rotated when the cradle 20 is moved in translation. A counterweight 52 may be provided on each pallet to hold the pallet in abutment against the casing 23 during movements of the cradle 20.

Dans l'exemple qui vient d'être décrits le mécanisme est du type ciseaux, pour réaliser le mouvement de lever et d'abaissement du stator mais il est bien entendu que selon des variantes d'autres type de mécanismes de levage peuvent être envisagés, à titre d'exemple on pourrait prévoir un mécanisme du type genou simple ou à deux bielles ou encore un mécanisme du type presse à genoux ou encore un système à vérins par exemple des vérins à vis télescopique ou non. De tels mécanismes sont décrits notamment aux pages 144 et 145 de l'ouvrage intitulé « Des Mécanismes Elémentaires » édité par Decoopman , No ISBN 97823650027 qui sont incorporées ici par référence.In the example which has just been described the mechanism is of the scissor type, to realize the movement of raising and lowering of the stator but it is understood that according to variants of other types of lifting mechanisms can be envisaged, for example one could provide a mechanism of the knee-type single or two connecting rods or a mechanism of the knee press type or a jack system for example telescopic screw jacks or not. Such mechanisms are described in particular in pages 144 and 145 of the book entitled "Elementary Mechanisms" edited by Decoopman, ISBN 97823650027 which are incorporated herein by reference.

NOMENCLATURENOMENCLATURE

1010
Montrewatch
1111
boîtierhousing
1212
suspensionsuspension
1313
rotorrotor
1414
dispositifs magnétiquesmagnetic devices
2020
berceaucradle
2121
statorstator
2222
dispositifs magnétiquesmagnetic devices
2323
carterbox
2424
ouvertureopening
3030
supportsupport
3131
axe de maintienholding axis
31a31a
patte de fixationfixing lug
3232
mécanisme de levagelifting mechanism
3333
levierthe sink
34, 3534, 35
paire de bielles formant ciseaux.pair of connecting rods forming scissors.
35a35a
liaison mécanique entre les deux bielles 35mechanical connection between the two connecting rods 35
3636
ouverture oblongueoblong opening
36a, 36b36a, 36b
crans dans l'ouverture oblonguenotches in the oblong opening
3737
manche de préhension du levier 33lever grip handle 33
3838
petit côté du levierlittle side of the lever
3939
axe de liaison de deux bielles 34, 35connecting axis of two connecting rods 34, 35
4040
pignon de remontagewinding pinion
4141
clékey
5050
moyens d'isolation magnétiquemagnetic insulation means
5151
palettepalette
5252
contrepoidscounterweight

Claims (13)

Chronomètre de marine comprenant une montre (10) montée inclinable sur un support (30) par l'intermédiaire d'une suspension à cardan(12), chronomètre caractérisé en ce que le support comprend également un berceau (20) mobile en translation entre une position de repos où la montre est libre de mouvement sur la suspension à cardan, et une position de maintien où la montre est en appui sur le berceau.A marine chronometer comprising a watch (10) tiltable on a support (30) via a cardan suspension (12), a chronometer characterized in that the support also comprises a cradle (20) movable in translation between a rest position where the watch is free movement on the cardan suspension, and a holding position where the watch is supported on the cradle. Chronomètre selon la revendication 1 dans lequel le berceau est mobile en translation selon une direction sensiblement perpendiculaire au support.Chronometer according to claim 1 wherein the cradle is movable in translation in a direction substantially perpendicular to the support. Chronomètre selon l'une des revendications précédentes, caractérisé en ce que le berceau (20) comprend des moyens magnétiques (22) aptes à coopérer avec des moyens magnétiques (14) associés de la montre (10) pour immobiliser la montre dans le berceau lorsque le berceau est en position de maintien.Chronometer according to one of the preceding claims, characterized in that the cradle (20) comprises magnetic means (22) capable of cooperating with associated magnetic means (14) of the watch (10) to immobilize the watch in the cradle when the cradle is in the holding position. Chronomètre selon la revendication précédente dans lequel le berceau présente une position intermédiaire entre la position de repos et la position de maintien, position intermédiaire dans laquelle les moyens magnétiques du berceau sont adaptés pour coopérer avec les moyens magnétiques associés de la montre pour orienter la montre dans le berceau.Chronometer according to the preceding claim wherein the cradle has an intermediate position between the rest position and the holding position, intermediate position in which the magnetic means of the cradle are adapted to cooperate with the associated magnetic means of the watch to orient the watch in the cradle. Chronomètre selon l'une des revendications 3 à 4, comprenant également des moyens d'isolation magnétique (50, 51) mobiles entre : une position d'isolation où, lorsque le berceau est en position de repos, les moyens d'isolation forment un écran magnétique entre les moyens magnétiques du berceau et les moyens magnétiques de la montre et une position de retrait où, lorsque le berceau est en position de maintien, les moyens d'isolation magnétique sont inactifs. Chronometer according to one of claims 3 to 4, also comprising magnetic insulation means (50, 51) movable between: an isolation position where, when the cradle is in the rest position, the insulation means form a magnetic screen between the magnetic means of the cradle and the magnetic means of the watch and a withdrawal position where, when the cradle is in the holding position, the magnetic insulation means are inactive. Chronomètre selon la revendication 5 dans lequel les moyens d'isolation magnétique sont entraînés en mouvement par le berceau.Stopwatch according to claim 5 wherein the magnetic insulation means are driven in motion by the cradle. Chronomètre selon l'une des revendications 3 à 6 dans lequel le berceau comprend un stator (21) annulaire rotatif comprenant une pluralité de dispositifs magnétiques (22) répartis sur un pourtour intérieur du stator pour former les moyens magnétiques du berceau.Chronometer according to one of claims 3 to 6 wherein the cradle comprises a rotary annular stator (21) comprising a plurality of magnetic devices (22) distributed on an inner periphery of the stator to form the magnetic means of the cradle. Chronomètre selon la revendication 7 dans lequel le stator (21) est une roue dentée adaptée pour engrener avec un pignon de remontage (40) lorsque le berceau est en position de maintien.Chronometer according to claim 7 wherein the stator (21) is a gear adapted to mesh with a winding pinion (40) when the cradle is in the holding position. Chronomètre selon la revendication 8 dans lequel la montre comprend un mouvement horloger mécanique entrainé par un barillet et un mécanisme de remontage du barillet comprenant un rotor (13) de remontage en prise avec un rouage de remontage du barillet, et dans lequel le rotor de remontage (13) comprend une pluralité de dispositifs magnétiques (14) répartis sur un pourtour extérieur du rotor pour former les moyens magnétiques de la montre adaptés pour coopérer avec les moyens magnétiques du berceau lorsque le berceau est en position de maintien ou en position intermédiaire.Chronometer according to claim 8 wherein the watch comprises a mechanical watch movement driven by a barrel and a winding mechanism of the barrel comprising a rotor (13) for re-engaging with a winding winding of the barrel, and wherein the winding rotor (13) comprises a plurality of magnetic devices (14) distributed on an outer periphery of the rotor to form the magnetic means of the watch adapted to cooperate with the magnetic means of the cradle when the cradle is in the holding position or in the intermediate position. Chronomètre selon l'une des revendications précédentes dans lequel le support comprend : au moins un axe de maintien (31) sur lequel le berceau est monté coulissant et un mécanisme de levage (32) de type ciseaux pour coulisser le berceau le long de l'axe de maintien entre la position de maintien et la position de repos. Chronometer according to one of the preceding claims, in which the support comprises: at least one holding pin (31) on which the cradle is slidably mounted and a scissor type lifting mechanism (32) for sliding the cradle along the holding axis between the holding position and the rest position. Chronomètre de marine comprenant une montre (10) montée inclinable sur un support par l'intermédiaire d'une suspension à cardan, chronomètre caractérisé en ce que la montre comprend un mouvement mécanique entrainé par un barillet et comprenant un rotor de remontage (13) en prise avec un rouage de remontage du barillet, et en ce que le support comprend un moyen de remontage mobile entre : une position de remontage où le rotor de remontage (13) de la montre est couplé magnétiquement avec le moyen de remontage et une position de repos où le rotor de remontage (13) de la montre est libre de rotation par rapport au moyen de remontage. Marine chronometer comprises a clock (10) tiltable mounted on a support by means of a gimbal, stopwatch characterized in that the watch includes a movement mechanical driven by a barrel and comprising a winding rotor (13) engaged with a winding winding of the barrel, and in that the support comprises a movable winding means between: a winding position where the winding rotor (13) of the watch is magnetically coupled with the winding means and a rest position where the winding rotor (13) of the watch is free to rotate relative to the winding means. Chronomètre selon la revendication 11 dans lequel le moyen de remontage comprend un stator annulaire comprenant une pluralité de dispositifs magnétiques répartis sur un pourtour intérieur du stator, le stator étant mobile entre la position de remontage et la position de repos, le stator étant une roue dentée adaptée pour engrener avec un pignon de remontage (40) lorsque le stator est en position de remontage.Chronometer according to claim 11 wherein the winding means comprises an annular stator comprising a plurality of magnetic devices distributed over an inner periphery of the stator, the stator being movable between the winding position and the rest position, the stator being a toothed wheel adapted to mesh with a winding pinion (40) when the stator is in the winding position. Chronomètre selon la revendication 12 dans lequel le pignon de remontage (40) est disposé à l'extérieur du boitier et indépendant de la montre.Chronometer according to claim 12 wherein the winding pinion (40) is disposed outside the housing and independent of the watch.
EP16196926.6A 2016-11-02 2016-11-02 Device for immobilising and/or winding a marine chronometer Active EP3318933B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH01463/16A CH713106A2 (en) 2016-11-02 2016-11-02 Device for immobilizing and / or reassembling a marine chronometer.
EP16196926.6A EP3318933B1 (en) 2016-11-02 2016-11-02 Device for immobilising and/or winding a marine chronometer
US15/730,900 US10401797B2 (en) 2016-11-02 2017-10-12 Device for immobilising and/or winding a marine chronometer
JP2017204997A JP6483217B2 (en) 2016-11-02 2017-10-24 A device that immobilizes and / or rolls up a marine chronometer
CN201711057817.2A CN108021016B (en) 2016-11-02 2017-11-01 Device for immobilizing and/or winding a nautical timepiece
HK18113084.0A HK1253935A1 (en) 2016-11-02 2018-10-12 Device for immobilising and/or winding a marine chronometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16196926.6A EP3318933B1 (en) 2016-11-02 2016-11-02 Device for immobilising and/or winding a marine chronometer

Publications (2)

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EP3318933A1 true EP3318933A1 (en) 2018-05-09
EP3318933B1 EP3318933B1 (en) 2020-03-25

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EP16196926.6A Active EP3318933B1 (en) 2016-11-02 2016-11-02 Device for immobilising and/or winding a marine chronometer

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US (1) US10401797B2 (en)
EP (1) EP3318933B1 (en)
JP (1) JP6483217B2 (en)
CN (1) CN108021016B (en)
CH (1) CH713106A2 (en)
HK (1) HK1253935A1 (en)

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Publication number Priority date Publication date Assignee Title
CH714171B1 (en) * 2017-09-22 2019-08-30 Montres Breguet Sa Device for raising and / or immobilizing a marine chronometer.
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Also Published As

Publication number Publication date
CN108021016B (en) 2021-01-01
JP6483217B2 (en) 2019-03-13
CH713106A2 (en) 2018-05-15
JP2018072338A (en) 2018-05-10
CN108021016A (en) 2018-05-11
US20180120772A1 (en) 2018-05-03
US10401797B2 (en) 2019-09-03
HK1253935A1 (en) 2019-07-05
EP3318933B1 (en) 2020-03-25

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