EP3185080A1 - Timepiece mechanism comprising a pivoting member provided with magnetic return means - Google Patents

Timepiece mechanism comprising a pivoting member provided with magnetic return means Download PDF

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Publication number
EP3185080A1
EP3185080A1 EP15201933.7A EP15201933A EP3185080A1 EP 3185080 A1 EP3185080 A1 EP 3185080A1 EP 15201933 A EP15201933 A EP 15201933A EP 3185080 A1 EP3185080 A1 EP 3185080A1
Authority
EP
European Patent Office
Prior art keywords
magnet
pivoting member
clock mechanism
magnets
mechanism according
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
EP15201933.7A
Other languages
German (de)
French (fr)
Other versions
EP3185080B1 (en
Inventor
Benoît LÉGERET
Davide Sarchi
Sylvain Dauby
Alain Zaugg
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 EP15201933.7A priority Critical patent/EP3185080B1/en
Priority to US15/289,415 priority patent/US9921546B2/en
Priority to JP2016217827A priority patent/JP6326475B2/en
Priority to CN201611191011.8A priority patent/CN106909049B/en
Publication of EP3185080A1 publication Critical patent/EP3185080A1/en
Application granted granted Critical
Publication of EP3185080B1 publication Critical patent/EP3185080B1/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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights
    • 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
    • G04B5/00—Automatic winding up
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/001—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power
    • G04B11/005—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power with magnetic elements
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/006—Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices)
    • G04B11/008—Clutch mechanism between two rotating members with transfer of movement in only one direction (free running devices) with friction members, e.g. click springs or jumper
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • 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
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/04—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited
    • G04B5/08—Automatic winding up by self-winding caused by the movement of the watch by oscillating weights the movement of which is limited acting in both directions
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0017—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of gearworks
    • G04D3/002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of gearworks for gear wheels or gears

Definitions

  • the present invention generally relates to watch mechanisms comprising a rotating wheel, a support, a pivotally mounted member on the support and magnetic return means for biasing a portion of the pivoting member against a surface of the rotating wheel.
  • the present invention relates more particularly to such a mechanism in which the return means comprise a first magnet carried by the pivoting member and a second magnet carried by the support separately from the pivoting member, the first magnet and the second magnet being arranged with in a first relative position of the first magnet and the second magnet, the interaction of the respective magnetic fields of the latter generates a force acting on the pivoting member and oriented so as to bias said portion of the pivoting member towards of the rotating mobile surface.
  • Figure 15 of the patent document FR 1'276'734 shows part of an automatic winding mechanism, this part used for the conversion of the rotational movement of a mobile rotating in alternating movements of a pivoting member.
  • the rotating wheel with which the pivoting member cooperates is constituted by a trilobal cam and the return means to recall a part of the organ pivoting against a surface of the rotating mobile comprises two permanent magnets.
  • the invention therefore relates to watch mechanisms in which the return means do not operate by means of a spring, but by means of a pair of magnets.
  • the use of such return means has the advantage of avoiding the problems related to fatigue of the spring. Indeed, when a spring is repeatedly subjected to stress repeatedly, microcracks may form and cause a drop in the coefficient of elasticity, or even the rupture of the spring.
  • the clock mechanisms comprising return means comprising several permanent magnets also have certain disadvantages, however. Indeed, the permanent magnets must be arranged close to each other. Under these conditions, the omnipresence of a magnetic interaction force between the magnets makes the assembly operation of such mechanisms difficult. It also complicates their eventual dismantling and adjustment.
  • An object of the present invention is to overcome the drawbacks of the prior art by providing a clock mechanism according to the definition given in the preamble and whose rotating mobile and the parts cooperating with it can be easily assembled during assembly of the mechanism and removed easily for inspection, cleaning or repair and reassembly without the need for adjustment.
  • the present invention achieves this goal by providing a clock mechanism according to the appended claim 1.
  • At least one of said first and second magnets is arranged to allow its polarity to be reversed, and As a consequence, the direction of the magnetic force acting on the pivoting member.
  • the magnetic force is an attractive force
  • reversing the polarity of one of the magnets will change it into a repulsive force.
  • the inversion of the polarity of one of the magnets then generates an attractive force.
  • the second magnet is formed so as to enable it to cooperate with a tool to allow it to turn on itself.
  • An advantage of this variant is that it enables a watchmaker to vary the magnetic interaction in the magnetic system in question and in particular to change the direction of the magnetic force on the pivoting member in order to keep momentarily the pivoting member of the rotating mobile, thus facilitating assembly or disassembly of the watch mechanism.
  • the clock mechanism (generally referenced 1) is a bidirectional automatic winding mechanism for a watch movement.
  • This mechanism comprises an oscillating mass 3 and an eccentric cam 5 fixedly mounted on the oscillating mass, in a coaxial position, so that the cam 5 participates solidarily in the oscillation movement of the mass 3.
  • the eccentric has the shape of an oval disk having a symmetrical center 2 through which its axis of rotation passes. It will be understood, however, that in a manner known per se, the eccentric cam could just as well have another shape. For example, the shape of an ellipse or a heart.
  • the illustrated mechanism comprises a rocker 7 pivoted about an axis 9.
  • the eccentric cam 5 is in contact with the rocker by means of two rollers 11 each mounted on a pin 13 of the rocker.
  • the interaction between the eccentric cam and the two rollers has the effect of imparting an oscillating movement to the rocker 7.
  • the latch 7 of the clock mechanism which is the subject of this example carries two pivoting members (respectively referenced 15a and 15b) which are pivoted on the rocker about two separate axes 17a, 17b.
  • Each of the pivoting members has the form of a lever of the first kind with two arms which extend on either side of the pivot axis.
  • a first arm ends with a spout 19 and is arranged to serve as a ratchet.
  • the second arm carries a magnet (hereinafter first magnet 21).
  • the first magnet is preferably mounted in a housing 23 provided for this purpose.
  • the rocker 7 carries another magnet (hereinafter second magnet 25) mounted separately from the two pivoting members 15a, 15b.
  • the three magnets 21 and 25 are substantially aligned and located in a plane perpendicular to the axis of rotation 2 of the oscillating mass 3.
  • the second magnet is disposed at a distance from the first two magnets 21 on the flip-flop 7.
  • the magnets 21 and 25 are disk-shaped and that their polarization direction corresponds substantially to the alignment direction of the magnets in the plane perpendicular to the axis 2.
  • the three magnets are arranged alternately with respect to the direction of their polarization.
  • the first two magnets 21 are polarized in the same direction, while the second magnet 25, which is interposed between the first two magnets, is polarized in the opposite direction.
  • the magnets repel, and a magnetic repulsion force is manifested in the form of a return torque exerted counterclockwise on the pivot member 15a and by a return torque exerted clockwise on the pivoting member 15b.
  • the clock mechanism 1 further comprises a rotating wheel 27.
  • the rotating wheel is a ratchet wheel.
  • the ratchet wheel is arranged to be driven by the two pawls 15a and 15b.
  • the two pawls are biased against the ratchet of the ratchet wheel 27 in the opposite direction.
  • the ratchet wheel 27 is arranged to drive the shaft of a barrel by means of a gear train so as to arm the mainspring.
  • At least one of the first and second magnets 21, 25 is arranged to change the direction or direction of its polarity and thus vary the magnetic force acting on the pivoting member 15a or 15b.
  • the second magnet 25 is arranged to be pivoted by 180 ° relative to the rocker 7 on which it is mounted, which allows to change the direction of the polarity of the second magnet.
  • the second magnet which is housed in a cavity of the rocker 7, has the form of a slotted screw head. The slot is intended to allow a watchmaker to rotate the magnet using a screwdriver.
  • the second magnet is mounted in a rotating housing (not shown) which is itself housed in a cavity of the rocker.
  • the two pawls thus depart from the ratchet wheel 27.
  • the parts of the watch mechanism can be easily mounted first and then easily removed for inspection, cleaning or repair and finally reassembled.
  • the invention offers a great advantage when it is necessary to disarm the barrel, for example to proceed with the replacement of the mainspring. Indeed, as we have seen, the fact of reversing the polarity of the second magnet keeps the two pawls 15a, 15b clear of the ratchet wheel, and therefore the mainspring.
  • the invention has yet another advantage because the possibility of rotating a magnet offered by the invention makes it possible to vary the direction of the magnetization axis of this magnet and thus the interaction with the other magnet of the magnetic system concerned, in particular to vary the intensity of the magnetic force between the two magnets. It is therefore possible to adjust the intensity of the magnetic force acting on the pivoting member. Such a fine adjustment of the magnetic force may be important to optimize the function, in particular the intensity of the restoring force exerted on the pivoting member.
  • the magnet arranged rotating on the support forms an eccentric, that is to say that the magnet is not centered on the axis of rotation of the -this.
  • the magnet does not have a plane (ie in a general plane perpendicular to its axis of rotation) a cylindrical or square shape but another shape, for example rectangular or elliptical.
  • a plane ie in a general plane perpendicular to its axis of rotation
  • another shape for example rectangular or elliptical.
  • the figure 4 is a partial view, similar to the figure 3 , an automatic winding mechanism for a watch constituting a second embodiment of the watch mechanism of the invention.
  • the mechanism of the figure 4 comprises a rocker 107 (only part of which is visible) pivoted about an axis 109. It will be understood that, in a manner similar to that explained in relation to the first embodiment, when the oscillating mass (not shown) pivots in one direction or the other, the interaction between the eccentric cam (not shown) and the two rollers 11 (not shown) has the effect of imparting an oscillating movement back and forth to the rocker 107 .
  • the rocker 107 carries two pivoting members (respectively referenced 115a and 115b) which are pivoted on the rocker around two separate axes 117a, 117b.
  • the pivoting member 115a has the shape of a lever of the third kind with a single arm extending from the pivot axis 117a, while the pivoting member 115b is in the form of a lever of the first kind with two arms extending on either side of the pivot axis 117b.
  • a first arm of the pivoting member 115b which terminates in a spout 119, is arranged to serve as a pawl.
  • the second arm carries a magnet (hereinafter first magnet 121).
  • the pivoting member 115a is also arranged to serve as a pawl, its single arm also ending in a spout 119, and it also carries a magnet (hereinafter first magnet 121) which is disposed between the pivot axis 117a and the beak 119. It will be understood that it is precisely this intermediate position of the magnet which makes the pivoting member 115a a lever of the third kind.
  • the rocker 107 carries another magnet (hereinafter second magnet 125) which is separated from the two pivoting members 115a, 115b.
  • second magnet 125 another magnet
  • the three magnets 121 and 125 are substantially aligned and located in a plane perpendicular to the axis of rotation of the rocker.
  • the second magnet is disposed on the rocker 107 between the two magnets 121 at a distance therefrom so as to prevent the magnets from colliding during the operation of the automatic winding mechanism.
  • their polarization direction substantially corresponds to their alignment direction.
  • the first magnet mounted on the pivoting member 115b and the second magnet 125 are polarized in the same direction.
  • the first magnet mounted on the pivoting member 115a is polarized in the same direction as the second magnet 125. Thus, it is attracted by this second magnet.
  • the magnetic attraction force between the first magnet mounted on the pivoting member 115a and the second magnet 125 is in the form of a biasing torque exerted counterclockwise on the pivoting member 115a.
  • the present invention is not limited to an automatic winding mechanism.
  • the skilled person knows in particular many other applications in which clock wheels and ratchets or jumpers are implemented.
  • the present invention is capable of being easily adapted to each of these applications.
  • the ratchets and the jumpers are naturally not the only examples of pivoting members capable of being arranged to cooperate with a rotating mobile. Examples other than pawls include, in particular, cam control mechanisms, hammer reset mechanisms, mechanisms coupling clutch and rocking mechanisms for perpetual calendar.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Toys (AREA)

Abstract

Le mécanisme horloger comprend un mobile tournant (27), un support, un organe pivotant (15a, 15b) monté sur ce support, et des moyens de rappel pour rappeler une partie (19) de l'organe pivotant contre une surface du mobile tournant. Les moyens de rappel comportent un premier aimant (21) porté par l'organe pivotant et un deuxième aimant (25) porté par le support. Les premier et deuxième aimants sont agencés de manière que, dans un première position relative, l'interaction de leurs champs magnétiques respectifs engendre une force magnétique orientée de manière à rappeler ladite partie de l'organe pivotant en direction de ladite surface du mobile tournant. Au moins un des premier et deuxième aimants est agencé pour permettre d'inverser sa polarité et ainsi le sens de la force magnétique agissant sur l'organe pivotant. Cette inversion est réalisée de préférence à l'aide d'un outil par un horloger.The clock mechanism comprises a rotating mobile (27), a support, a pivoting member (15a, 15b) mounted on this support, and return means for returning a portion (19) of the pivoting member against a surface of the rotating mobile . The return means comprise a first magnet (21) carried by the pivoting member and a second magnet (25) carried by the support. The first and second magnets are arranged so that, in a first relative position, the interaction of their respective magnetic fields generates a magnetic force oriented to return said portion of the pivoting member towards said surface of the rotating wheel. At least one of the first and second magnets is arranged to reverse its polarity and thus the direction of the magnetic force acting on the pivoting member. This inversion is preferably performed with the aid of a tool by a watchmaker.

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

La présente invention concerne généralement les mécanismes horlogers comprenant un mobile tournant, un support, un organe monté pivotant sur le support et des moyens de rappel magnétique pour rappeler une partie de l'organe pivotant contre une surface du mobile tournant. La présente invention concerne plus particulièrement un tel mécanisme dans lequel les moyens de rappel comportent un premier aimant porté par l'organe pivotant et un deuxième aimant porté par le support séparément de l'organe pivotant, le premier aimant et le deuxième aimant étant agencés de manière que, dans une première position relative du premier aimant et du deuxième aimant, l'interaction des champs magnétiques respectifs de ces derniers engendre une force agissant sur l'organe pivotant et orientée de manière à rappeler ladite partie de l'organe pivotant en direction de la surface du mobile tournant.The present invention generally relates to watch mechanisms comprising a rotating wheel, a support, a pivotally mounted member on the support and magnetic return means for biasing a portion of the pivoting member against a surface of the rotating wheel. The present invention relates more particularly to such a mechanism in which the return means comprise a first magnet carried by the pivoting member and a second magnet carried by the support separately from the pivoting member, the first magnet and the second magnet being arranged with in a first relative position of the first magnet and the second magnet, the interaction of the respective magnetic fields of the latter generates a force acting on the pivoting member and oriented so as to bias said portion of the pivoting member towards of the rotating mobile surface.

ART ANTERIEURPRIOR ART

On connait déjà des mécanismes horlogers qui correspondent à la définition ci-dessus. Ainsi, la figure 15 du document de brevet FR 1'276'734 montre une partie d'un mécanisme de remontoir automatique, cette partie servant à la conversion du mouvement de rotation d'un mobile tournant en mouvements alternés d'un organe pivotant. Selon l'exemple illustré, le mobile tournant avec lequel coopère l'organe pivotant est constitué par une came trilobée et les moyens de rappel pour rappeler une partie de l'organe pivotant contre une surface du mobile tournant comporte deux aimants permanents.We already know watch mechanisms that correspond to the definition above. Thus, Figure 15 of the patent document FR 1'276'734 shows part of an automatic winding mechanism, this part used for the conversion of the rotational movement of a mobile rotating in alternating movements of a pivoting member. According to the illustrated example, the rotating wheel with which the pivoting member cooperates is constituted by a trilobal cam and the return means to recall a part of the organ pivoting against a surface of the rotating mobile comprises two permanent magnets.

Conformément aux explications ci-dessus, l'invention concerne donc des mécanismes horlogers dans lesquels les moyens de rappel n'opèrent pas grâce à un ressort, mais au moyen d'une paire d'aimants. L'utilisation de tels moyens de rappel présente notamment l'avantage d'éviter les problèmes liés à la fatigue du ressort. En effet, lorsqu'un ressort est soumis à des sollicitations répétées à de multiples reprises, des microfissures risquent de se former et d'entraîner une baisse du coefficient d'élasticité, voire même la rupture du ressort.In accordance with the above explanations, the invention therefore relates to watch mechanisms in which the return means do not operate by means of a spring, but by means of a pair of magnets. The use of such return means has the advantage of avoiding the problems related to fatigue of the spring. Indeed, when a spring is repeatedly subjected to stress repeatedly, microcracks may form and cause a drop in the coefficient of elasticity, or even the rupture of the spring.

Les mécanismes horlogers comprenant des moyens de rappel comportant plusieurs aimants permanents présentent toutefois également certains inconvénients. En effet, les aimants permanents doivent être agencés à proximité les uns des autres. Dans ces conditions, l'omniprésence d'une force d'interaction magnétique entre les aimants rend délicate l'opération d'assemblage de tels mécanismes. Elle complique également leur éventuel démontage et leur ajustement.The clock mechanisms comprising return means comprising several permanent magnets also have certain disadvantages, however. Indeed, the permanent magnets must be arranged close to each other. Under these conditions, the omnipresence of a magnetic interaction force between the magnets makes the assembly operation of such mechanisms difficult. It also complicates their eventual dismantling and adjustment.

BREF EXPOSE DE L'INVENTIONBRIEF SUMMARY OF THE INVENTION

Un but de la présente invention est de remédier aux inconvénients de l'art antérieur en fournissant un mécanisme horloger conformes à la définition donnée en préambule et dont le mobile tournant et les pièces coopérant avec lui puissent être aisément assemblés lors du montage du mécanisme et retirés facilement pour contrôle, nettoyage ou réparation et être réassemblés sans qu'il soit nécessaire d'effectuer un réglage. La présente invention atteint ce but en fournissant un mécanisme horloger selon la revendication 1 annexée.An object of the present invention is to overcome the drawbacks of the prior art by providing a clock mechanism according to the definition given in the preamble and whose rotating mobile and the parts cooperating with it can be easily assembled during assembly of the mechanism and removed easily for inspection, cleaning or repair and reassembly without the need for adjustment. The present invention achieves this goal by providing a clock mechanism according to the appended claim 1.

Conformément à l'invention, au moins un desdits premier et deuxième aimants est agencé pour permettre d'inverser sa polarité, et par voie de conséquence, le sens de la force magnétique agissant sur l'organe pivotant. Autrement dit, si la force magnétique est une force attractive, l'inversion de la polarité d'un des aimants la changera en une force répulsive. Inversement, si la force magnétique est une force répulsive, l'inversion de la polarité d'un des aimants engendre alors une force attractive. On comprend donc que si la polarité d'un aimant d'un mécanisme horloger conforme à l'invention est inversée à un moment donné, la force qui avait jusque-là pour effet de rappeler une partie de l'organe pivotant contre une surface du mobile tournant change de sens, écartant ainsi l'organe pivotant du mobile tournant.According to the invention, at least one of said first and second magnets is arranged to allow its polarity to be reversed, and As a consequence, the direction of the magnetic force acting on the pivoting member. In other words, if the magnetic force is an attractive force, reversing the polarity of one of the magnets will change it into a repulsive force. Conversely, if the magnetic force is a repulsive force, the inversion of the polarity of one of the magnets then generates an attractive force. It is therefore understood that if the polarity of a magnet of a clockwork mechanism according to the invention is reversed at a given moment, the force which hitherto had the effect of reminding a part of the pivoting member against a surface of the mobile rotating changes direction, thus removing the pivoting member of the rotating mobile.

Conformément à une variante avantageuse de l'invention, le deuxième aimant est formé de manière à lui permettre de coopérer avec un outil pour permettre de le tourner sur lui-même. Un avantage de cette variante est de permettre à un horloger de varier l'interaction magnétique dans le système magnétique en question et notamment de changer le sens de la force magnétique sur l'organe pivotant pour maintenir momentanément écarté l'organe pivotant du mobile tournant, facilitant ainsi un montage ou un démontage du mécanisme horloger.According to an advantageous variant of the invention, the second magnet is formed so as to enable it to cooperate with a tool to allow it to turn on itself. An advantage of this variant is that it enables a watchmaker to vary the magnetic interaction in the magnetic system in question and in particular to change the direction of the magnetic force on the pivoting member in order to keep momentarily the pivoting member of the rotating mobile, thus facilitating assembly or disassembly of the watch mechanism.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés dans lesquels :

  • la Figure 1 est une vue en plan de dessus d'un mécanisme de remontage automatique pour montre qui constitue un premier mode de réalisation particulier du mécanisme horloger de l'invention;
  • la Figure 2 est une vue en perspective agrandie du mécanisme de remontage automatique de la figure 1, la masse oscillante ayant été omise;
  • la Figure 3 est une vue partielle en plan de dessus du mécanisme de remontage automatique des figures 1 et 2 montrant plus en détail l'agencement de la bascule, de deux cliquets et de la roue à rochet;
  • la Figure 4 est une vue partielle semblable à la figure 3 et qui montre un mécanisme de remontage automatique pour montre constituant un deuxième mode de réalisation particulier du mécanisme horloger de l'invention.
Other features and advantages of the present invention will appear on reading the following description, given solely by way of non-limiting example, and with reference to the appended drawings in which:
  • the Figure 1 is a top plan view of an automatic winding mechanism for a watch which constitutes a first particular embodiment of the watchmaking mechanism of the invention;
  • the Figure 2 is an enlarged perspective view of the automatic winding mechanism of the figure 1 the oscillating mass having been omitted;
  • the Figure 3 is a partial top plan view of the automatic winding mechanism of Figures 1 and 2 showing in more detail the arrangement of the rocker, two pawls and the ratchet wheel;
  • the Figure 4 is a partial view similar to the figure 3 and which shows an automatic winding mechanism for a watch constituting a second particular embodiment of the watchmaking mechanism of the invention.

DESCRIPTION DETAILLEE DE MODES DE REALISATIONDETAILED DESCRIPTION OF EMBODIMENTS

Les figures 1, 2 et 3 sont des illustrations d'un premier mode de réalisation particulier du mécanisme horloger de l'invention. Dans l'exemple illustré, le mécanisme horloger (globalement référencé 1) est un mécanisme de remontage automatique bidirectionnel pour mouvement d'horlogerie. Ce mécanisme comporte une masse oscillante 3 et une came excentrique 5 montée fixe sur la masse oscillante, en position coaxiale, de manière que la came 5 participe solidairement au mouvement d'oscillation de la masse 3. Comme le montre la figure 1, l'excentrique présente la forme d'un disque ovale possédant un centre de symétrique 2 par lequel passe son axe de rotation. On comprendra toutefois, que de manière connue en soi, la came excentrique pourrait tout aussi bien avoir une autre forme. Par exemple, la forme d'une ellipse ou d'un coeur.The Figures 1, 2 and 3 are illustrations of a first particular embodiment of the watch mechanism of the invention. In the illustrated example, the clock mechanism (generally referenced 1) is a bidirectional automatic winding mechanism for a watch movement. This mechanism comprises an oscillating mass 3 and an eccentric cam 5 fixedly mounted on the oscillating mass, in a coaxial position, so that the cam 5 participates solidarily in the oscillation movement of the mass 3. As shown in FIG. figure 1 , the eccentric has the shape of an oval disk having a symmetrical center 2 through which its axis of rotation passes. It will be understood, however, that in a manner known per se, the eccentric cam could just as well have another shape. For example, the shape of an ellipse or a heart.

En se référant plus particulièrement à la figure 2, on peut voir que le mécanisme illustré comporte une bascule 7 pivotée autour d'un axe 9. La came excentrique 5 est en contact avec la bascule par l'intermédiaire de deux galets de roulement 11 montés chacun sur un tenon 13 de la bascule. Lorsque la masse 3 pivote dans un sens ou dans l'autre, l'interaction entre la came excentrique et les deux galets a pour effet de communiquer un mouvement oscillant à la bascule 7.With particular reference to the figure 2 it can be seen that the illustrated mechanism comprises a rocker 7 pivoted about an axis 9. The eccentric cam 5 is in contact with the rocker by means of two rollers 11 each mounted on a pin 13 of the rocker. When the mass 3 pivots in one direction or the other, the interaction between the eccentric cam and the two rollers has the effect of imparting an oscillating movement to the rocker 7.

La bascule 7 du mécanisme horloger qui fait l'objet de présent exemple porte deux organes pivotant (respectivement référencés 15a et 15b) qui sont pivotés sur la bascule autour de deux axes distincts 17a, 17b. Chacun des organes pivotant a la forme d'un levier du premier genre avec deux bras qui s'étendent de part et d'autre de l'axe de pivotement. Un premier bras se termine par un bec 19 et est agencé pour servir de cliquet. Ensuite, le deuxième bras porte un aimant (ci-après premier aimant 21). Le premier aimant est de préférence monté dans un logement 23 prévu à cet effet.The latch 7 of the clock mechanism which is the subject of this example carries two pivoting members (respectively referenced 15a and 15b) which are pivoted on the rocker about two separate axes 17a, 17b. Each of the pivoting members has the form of a lever of the first kind with two arms which extend on either side of the pivot axis. A first arm ends with a spout 19 and is arranged to serve as a ratchet. Then, the second arm carries a magnet (hereinafter first magnet 21). The first magnet is preferably mounted in a housing 23 provided for this purpose.

En se référant toujours aux figures, on peut voir en outre que la bascule 7 porte un autre aimant (ci-après deuxième aimant 25) monté séparément des deux organes pivotant 15a, 15b. Dans l'exemple représenté, les trois aimants 21 et 25 sont sensiblement alignés et situés dans un plan perpendiculaire à l'axe de rotation 2 de la masse oscillante 3. Le deuxième aimant est disposé à une certaine distance des deux premiers aimants 21 sur la bascule 7. On peut voir en outre que les aimants 21 et 25 ont la forme de disque et que leur direction de polarisation correspond sensiblement à la direction d'alignement des aimants dans le plan perpendiculaire à l'axe 2. En se référant plus particulièrement à la figure 3, on peut noter que les trois aimants sont disposés de manière alternée en ce qui concerne le sens de leur polarisation. Autrement dit, les deux premiers aimants 21 sont polarisés dans le même sens, alors que le deuxième aimant 25, qui est intercalé entre les deux premiers aimants, est polarisé en sens contraire. Dans ces conditions, les aimants se repoussent, et une force magnétique de répulsion se manifeste sous la forme d'un couple de rappel exercé dans le sens antihoraire sur l'organe de pivotement 15a et par un couple de rappel exercé dans le sens horaire sur l'organe pivotant 15b.Referring still to the figures, it can be seen further that the rocker 7 carries another magnet (hereinafter second magnet 25) mounted separately from the two pivoting members 15a, 15b. In the example shown, the three magnets 21 and 25 are substantially aligned and located in a plane perpendicular to the axis of rotation 2 of the oscillating mass 3. The second magnet is disposed at a distance from the first two magnets 21 on the flip-flop 7. It can further be seen that the magnets 21 and 25 are disk-shaped and that their polarization direction corresponds substantially to the alignment direction of the magnets in the plane perpendicular to the axis 2. Referring more particularly to the figure 3 it may be noted that the three magnets are arranged alternately with respect to the direction of their polarization. In other words, the first two magnets 21 are polarized in the same direction, while the second magnet 25, which is interposed between the first two magnets, is polarized in the opposite direction. Under these conditions, the magnets repel, and a magnetic repulsion force is manifested in the form of a return torque exerted counterclockwise on the pivot member 15a and by a return torque exerted clockwise on the pivoting member 15b.

Le mécanisme horloger 1 comprend encore un mobile tournant 27. Dans l'exemple représenté, le mobile tournant est une roue à rochet. De manière connue, la roue à rochet est agencée pour être entraînée par les deux cliquets 15a et 15b. Dans le mode de réalisation illustré, les deux cliquets sont rappelés contre le rochet de la roue à rochet 27 en sens contraire. Ainsi, lorsque la bascule 7 pivote autour de l'axe 9 dans le sens horaire, le cliquet 15a est tiré et dégrène de la denture de la roue à rochet 27, tandis que le cliquet 15b, qui est également tiré, entraîne la roue à rochet. Inversement, lorsque la bascule 7 pivote autour de l'axe 9 dans le sens antihoraire, le cliquet 15a est poussé et entraîne la roue à rochet, tandis que le cliquet 15b, qui est également poussé, dégrène de la denture de la roue à rochet. De manière classique, la roue à rochet 27 est agencée pour entraîner l'arbre d'un barillet par l'intermédiaire d'un rouage de manière à armer le ressort de barillet.The clock mechanism 1 further comprises a rotating wheel 27. In the example shown, the rotating wheel is a ratchet wheel. Of known manner, the ratchet wheel is arranged to be driven by the two pawls 15a and 15b. In the illustrated embodiment, the two pawls are biased against the ratchet of the ratchet wheel 27 in the opposite direction. Thus, when the rocker 7 pivots around the axis 9 in the clockwise direction, the pawl 15a is pulled and disengages from the toothing of the ratchet wheel 27, while the pawl 15b, which is also pulled, drives the wheel to ratchet. Conversely, when the rocker 7 pivots about the axis 9 counterclockwise, the pawl 15a is pushed and drives the ratchet wheel, while the pawl 15b, which is also pushed, out of the teeth of the ratchet wheel . Conventionally, the ratchet wheel 27 is arranged to drive the shaft of a barrel by means of a gear train so as to arm the mainspring.

Conformément à l'invention, un au moins des premier et deuxième aimants 21, 25 est agencé pour permettre de changer la direction ou le sens de sa polarité et varier ainsi la force magnétique agissant sur l'organe pivotant 15a ou 15b. Dans la variante décrite ici, le deuxième aimant 25 est agencé de manière à pouvoir être pivoté de 180° par rapport à la bascule 7 sur laquelle il est monté, ce qui permet de changer le sens de la polarité de ce deuxième aimant. En se référant en particulier à la figure 3, on peut voir que le deuxième aimant, qui est logé dans une cavité de la bascule 7, présente la forme d'une tête de vis à fente. La fente est prévue pour permettre à un horloger de faire tourner l'aimant en se servant d'un tournevis. Conformément à une variante, le deuxième aimant est monté dans un logement tournant (non représenté) qui est lui-même logé dans une cavité de la bascule. Un avantage de cette variante est de permettre de tourner l'aimant sans que ce dernier ne frotte contre la cavité dans laquelle il est logé ; ce qui permet d'éviter que cet aimant ne soit endommagé lors de son pivotement.According to the invention, at least one of the first and second magnets 21, 25 is arranged to change the direction or direction of its polarity and thus vary the magnetic force acting on the pivoting member 15a or 15b. In the variant described here, the second magnet 25 is arranged to be pivoted by 180 ° relative to the rocker 7 on which it is mounted, which allows to change the direction of the polarity of the second magnet. Referring in particular to the figure 3 it can be seen that the second magnet, which is housed in a cavity of the rocker 7, has the form of a slotted screw head. The slot is intended to allow a watchmaker to rotate the magnet using a screwdriver. According to a variant, the second magnet is mounted in a rotating housing (not shown) which is itself housed in a cavity of the rocker. An advantage of this variant is to allow the magnet to rotate without the latter rubbing against the cavity in which it is housed; which makes it possible to prevent this magnet from being damaged during its pivoting.

On peut comprendre que si on tourne le deuxième aimant 25 de 180°, les trois aimants 21, 25 se trouvent polarisés dans le même sens. Dans ces conditions, les aimants s'attirent au lieu de se repousser. Ainsi, une force magnétique d'attraction se manifeste sous la forme d'un couple exercé dans le sens horaire sur l'organe pivotant 15a et par un couple de rappel exercé dans le sens antihoraire sur l'organe pivotant 15b. Les deux cliquets s'écartent ainsi de la roue à rochet 27. Grâce à cette caractéristique de l'invention, les pièces du mécanisme horloger peuvent être premièrement montées aisément et ensuite retirées facilement pour contrôle, nettoyage ou réparation et finalement être réassemblées. D'autre part, l'invention offre un grand avantage quand il y a lieu de désarmer le barillet, par exemple pour procéder au remplacement du ressort de barillet. En effet, comme on l'a vu, le fait d'inverser la polarité du deuxième aimant permet de maintenir les deux cliquets 15a, 15b dégagé de la roue à rochet, et donc du ressort de barillet.It can be understood that if the second magnet is turned 180 °, the three magnets 21, 25 are polarized in the same direction. In these conditions, magnets attract rather than repel each other. Thus, a magnetic attraction force is manifested in the form of a torque exerted in the clockwise direction on the pivoting member 15a and by a return torque exerted counterclockwise on the pivoting member 15b. The two pawls thus depart from the ratchet wheel 27. Thanks to this feature of the invention, the parts of the watch mechanism can be easily mounted first and then easily removed for inspection, cleaning or repair and finally reassembled. On the other hand, the invention offers a great advantage when it is necessary to disarm the barrel, for example to proceed with the replacement of the mainspring. Indeed, as we have seen, the fact of reversing the polarity of the second magnet keeps the two pawls 15a, 15b clear of the ratchet wheel, and therefore the mainspring.

L'invention présente encore un autre avantage car la possibilité de tourner un aimant offerte par l'invention permet de varier la direction de l'axe d'aimantation de cet aimant et ainsi l'interaction avec l'autre aimant du système magnétique concerné, notamment de varier l'intensité de la force magnétique entre les deux aimants. Il est donc possible d'ajuster l'intensité de la force magnétique agissant sur l'organe pivotant. Un tel réglage fin de la force magnétique peut s'avérer important pour optimiser la fonction, notamment l'intensité de la force de rappel exercée sur l'organe pivotant. Dans une première variante, en particulier pour un cliquet ou un sautoir, l'aimant agencé tournant sur le support forme un excentrique, c'est-à-dire que l'aimant n'est pas centré sur l'axe de rotation de celui-ci. Ainsi, en variant la direction de l'aimant, on l'approche ou l'éloigne également de l'aimant porté par l'organe tournant. Dans une deuxième variante, l'aimant ne présente pas en plan (à savoir dans un plan général perpendiculaire à son axe de rotation) une forme cylindrique ou carrée mais une autre forme, par exemple rectangulaire ou elliptique. Comme pour la première variante, une telle configuration permet de varier l'intensité de la force s'exerçant dans le système magnétique considéré.The invention has yet another advantage because the possibility of rotating a magnet offered by the invention makes it possible to vary the direction of the magnetization axis of this magnet and thus the interaction with the other magnet of the magnetic system concerned, in particular to vary the intensity of the magnetic force between the two magnets. It is therefore possible to adjust the intensity of the magnetic force acting on the pivoting member. Such a fine adjustment of the magnetic force may be important to optimize the function, in particular the intensity of the restoring force exerted on the pivoting member. In a first variant, in particular for a pawl or a jumper, the magnet arranged rotating on the support forms an eccentric, that is to say that the magnet is not centered on the axis of rotation of the -this. Thus, by varying the direction of the magnet, it is approaching or away from the magnet carried by the rotating member. In a second variant, the magnet does not have a plane (ie in a general plane perpendicular to its axis of rotation) a cylindrical or square shape but another shape, for example rectangular or elliptical. As for the first variant, such a configuration makes it possible to vary the intensity of the force exerted in the magnetic system in question.

La figure 4 est une vue partielle, semblable à la figure 3, d'un mécanisme de remontage automatique pour montre constituant un deuxième mode de réalisation du mécanisme horloger de l'invention. On peut voir que le mécanisme de la figure 4 comporte une bascule 107 (dont seulement une partie est visible) pivotée autour d'un axe 109. On comprendra que, de façon semblable à ce qui a été expliqué en relation avec le premier mode de réalisation, lorsque la masse oscillante (non représentée) pivote dans un sens ou dans l'autre, l'interaction entre la came excentrique (non représentée) et les deux galets 11 (non représentés) a pour effet de communiquer un mouvement oscillant, de va-et-vient, à la bascule 107.The figure 4 is a partial view, similar to the figure 3 , an automatic winding mechanism for a watch constituting a second embodiment of the watch mechanism of the invention. We can see that the mechanism of the figure 4 comprises a rocker 107 (only part of which is visible) pivoted about an axis 109. It will be understood that, in a manner similar to that explained in relation to the first embodiment, when the oscillating mass (not shown) pivots in one direction or the other, the interaction between the eccentric cam (not shown) and the two rollers 11 (not shown) has the effect of imparting an oscillating movement back and forth to the rocker 107 .

La bascule 107 porte deux organes pivotant (respectivement référencés 115a et 115b) qui sont pivotés sur la bascule autour de deux axes distincts 117a, 117b. On remarquera que, contrairement à ce qui était le cas avec le premier mode de réalisation, l'arrangement des organes pivotant sur la figure 4 est asymétrique. L'organe pivotant 115a à la forme d'un levier du troisième genre avec un seul bras s'étendant à partir de l'axe de pivotement 117a, alors que l'organe pivotant 115b a la forme d'un levier du premier genre avec deux bras qui s'étendent de part et d'autre de l'axe de pivotement 117b. Un premier bras de l'organe pivotant 115b, qui se termine par un bec 119, est agencé pour servir de cliquet. D'autre part, le deuxième bras porte un aimant (ci-après premier aimant 121). L'organe pivotant 115a est également agencé pour servir de cliquet, son unique bras se terminant également par un bec 119, et il porte aussi un aimant (ci-après premier aimant 121) qui est disposé entre l'axe de pivotement 117a et le bec 119. On comprendra que c'est justement cette position intermédiaire de l'aimant qui fait de l'organe pivotant 115a un levier du troisième genre.The rocker 107 carries two pivoting members (respectively referenced 115a and 115b) which are pivoted on the rocker around two separate axes 117a, 117b. It will be noted that, contrary to what was the case with the first embodiment, the arrangement of the bodies pivoting on the figure 4 is asymmetrical. The pivoting member 115a has the shape of a lever of the third kind with a single arm extending from the pivot axis 117a, while the pivoting member 115b is in the form of a lever of the first kind with two arms extending on either side of the pivot axis 117b. A first arm of the pivoting member 115b, which terminates in a spout 119, is arranged to serve as a pawl. On the other hand, the second arm carries a magnet (hereinafter first magnet 121). The pivoting member 115a is also arranged to serve as a pawl, its single arm also ending in a spout 119, and it also carries a magnet (hereinafter first magnet 121) which is disposed between the pivot axis 117a and the beak 119. It will be understood that it is precisely this intermediate position of the magnet which makes the pivoting member 115a a lever of the third kind.

En se référant toujours à la figure 4, on peut voir en outre que la bascule 107 porte un autre aimant (ci-après deuxième aimant 125) qui est séparé des deux organes pivotant 115a, 115b. Comme c'était déjà le cas avec le premier mode de réalisation, les trois aimants 121 et 125 sont sensiblement alignés et situés dans un plan perpendiculaire à l'axe de rotation de la bascule. De plus, le deuxième aimant est disposé sur la bascule 107 entre les deux aimants 121 à une certaine distance de ceux-ci de manière à éviter que les aimants entrent en collision lors du fonctionnement du mécanisme de remontage automatique. A nouveau, leur direction de polarisation correspond sensiblement à leur direction d'alignement. Le premier aimant monté sur l'organe pivotant 115b et le deuxième aimant 125 sont polarisés dans le même sens. Dans ces conditions, ces deux aimants s'attirent et la force magnétique d'attraction se manifeste sous la forme d'un couple de rappel exercé dans le sens antihoraire sur l'organe pivotant 115b. De même, le premier aimant monté sur l'organe pivotant 115a est polarisé dans le même sens que le deuxième aimant 125. Ainsi, il est attiré par ce deuxième aimant. La force magnétique d'attraction entre le premier aimant monté sur l'organe pivotant 115a et le deuxième aimant 125 se manifeste sous la forme d'un couple de rappel exercé dans le sens antihoraire sur l'organe pivotant 115a.Referring always to the figure 4 it can further be seen that the rocker 107 carries another magnet (hereinafter second magnet 125) which is separated from the two pivoting members 115a, 115b. As was already the case with the first embodiment, the three magnets 121 and 125 are substantially aligned and located in a plane perpendicular to the axis of rotation of the rocker. In addition, the second magnet is disposed on the rocker 107 between the two magnets 121 at a distance therefrom so as to prevent the magnets from colliding during the operation of the automatic winding mechanism. Again, their polarization direction substantially corresponds to their alignment direction. The first magnet mounted on the pivoting member 115b and the second magnet 125 are polarized in the same direction. Under these conditions, these two magnets attract and the magnetic attraction force is manifested as a return torque exerted counterclockwise on the pivoting member 115b. Similarly, the first magnet mounted on the pivoting member 115a is polarized in the same direction as the second magnet 125. Thus, it is attracted by this second magnet. The magnetic attraction force between the first magnet mounted on the pivoting member 115a and the second magnet 125 is in the form of a biasing torque exerted counterclockwise on the pivoting member 115a.

On comprendra en outre que diverses modifications évidentes pour un homme du métier peuvent être apportées aux modes de réalisation qui font l'objet de la présente description, sans sortir du cadre de la présente invention définie par les revendications annexées. En particulier, la présente invention ne se limite absolument pas à un mécanisme de remontage automatique. En effet, l'homme du métier connait notamment de très nombreuses autres applications horlogères dans lesquelles des roues et des cliquets ou sautoirs sont mis en oeuvre. La présente invention est susceptible d'être adaptée sans difficulté à chacune de ces applications. D'autre part, les cliquets et les sautoirs ne sont naturellement pas les seuls exemples d'organes pivotant susceptibles d'être agencés pour coopérer avec un mobile tournant. Parmi les exemples autres que des cliquets, on peut citer notamment les mécanismes de commande par came, les mécanismes de remise à zéro à l'aide d'un marteau, les mécanismes d'embrayage par accouplement et les mécanismes à bascule pour calendrier perpétuel.It will be further understood that various modifications obvious to one skilled in the art can be made to the embodiments which are the subject of the present description, without departing from the scope of the present invention defined by the appended claims. In particular, the present invention is not limited to an automatic winding mechanism. Indeed, the skilled person knows in particular many other applications in which clock wheels and ratchets or jumpers are implemented. The present invention is capable of being easily adapted to each of these applications. On the other hand, the ratchets and the jumpers are naturally not the only examples of pivoting members capable of being arranged to cooperate with a rotating mobile. Examples other than pawls include, in particular, cam control mechanisms, hammer reset mechanisms, mechanisms coupling clutch and rocking mechanisms for perpetual calendar.

Claims (9)

Mécanisme horloger comprenant un mobile tournant (27), un support, un organe (15a, 15b ; 115a, 115b) monté pivotant sur le support, et des moyens de rappel pour rappeler une partie (19) de l'organe pivotant contre une surface du mobile tournant, les moyens de rappel comportant un premier aimant (21 ; 121) porté par l'organe pivotant et un deuxième aimant (25 ; 125) porté par le support séparément de l'organe pivotant, le premier aimant et le deuxième aimant étant agencés de manière que, dans une première position relative du premier aimant et du deuxième aimant, l'interaction des champs magnétiques respectifs de ces premier et deuxième aimants engendre une force magnétique agissant sur ledit organe pivotant qui est orientée de manière à rappeler ladite partie (19) de l'organe pivotant en direction de ladite surface du mobile tournant, caractérisé en ce qu'au moins un desdits premier et deuxième aimants est agencé pour permettre de changer la direction ou le sens de sa polarité et varier ainsi ladite force magnétique agissant sur l'organe pivotant.Clock mechanism comprising a rotating mobile (27), a support, a member (15a, 15b; 115a, 115b) pivotally mounted on the support, and return means for biasing a portion (19) of the pivoting member against a surface of the rotating mobile, the return means comprising a first magnet (21; 121) carried by the pivoting member and a second magnet (25; 125) carried by the support separately from the pivoting member, the first magnet and the second magnet being arranged so that, in a first relative position of the first magnet and the second magnet, the interaction of the respective magnetic fields of these first and second magnets generates a magnetic force acting on said pivoting member which is oriented to recall said portion (19) of the pivoting member towards said surface of the rotating wheel, characterized in that at least one of said first and second magnets is arranged to allow to change the direction or the direction its polarity and thus vary said magnetic force acting on the pivoting member. Mécanisme horloger selon la revendication 1, caractérisé en ce que ledit au moins un desdits premier et deuxième aimant est agencé pour permettre de le tourner sur lui-même de manière à inverser sa polarité.Clock mechanism according to claim 1, characterized in that said at least one of said first and second magnet is arranged to allow it to turn on itself so as to reverse its polarity. Mécanisme horloger selon la revendication 2, caractérisé en ce que ledit au moins un desdits premier et deuxième aimants est agencé de manière à pouvoir subir une rotation de 180° autour d'un axe perpendiculaire à son axe de polarisation.Clock mechanism according to claim 2, characterized in that said at least one of said first and second magnets is arranged to be rotatable by 180 ° about an axis perpendicular to its axis of polarization. Mécanisme horloger selon la revendication 2 ou 3, caractérisé en ce que ledit au moins un desdits premier et deuxième aimants comprend le deuxième aimant.Clock mechanism according to claim 2 or 3, characterized in that said at least one of said first and second magnets comprises the second magnet. Mécanisme horloger selon la revendication 4, caractérisé en ce que le deuxième aimant (25 ; 125) est conformé de manière à lui permettre de coopérer avec un outil pour inverser sa polarité.Clock mechanism according to claim 4, characterized in that the second magnet (25; 125) is shaped to allow it to cooperate with a tool to reverse its polarity. Mécanisme horloger selon la revendication 4 ou 5, caractérisé en ce que le support comporte un logement pivotant agencé pour recevoir le deuxième aimant (25 ; 125).Clock mechanism according to claim 4 or 5, characterized in that the support comprises a pivoting housing arranged to receive the second magnet (25; 125). Mécanisme horloger selon l'une des revendications précédentes, caractérisé en ce que le mobile tournant (27) comprend une roue à rochet et en ce que l'organe pivotant (15a, 15b; 125a, 125b) comporte un cliquet.Clock mechanism according to one of the preceding claims, characterized in that the rotating wheel (27) comprises a ratchet wheel and in that the pivoting member (15a, 15b; 125a, 125b) comprises a pawl. Mécanisme horloger selon la revendication 7, caractérisé en ce que le mécanisme horloger et un mécanisme de remontage automatique comportant une bascule (7 ; 107) formant ledit support, le cliquet (15a, 15b ; 125a, 125b) étant pivoté sur la bascule.Clock mechanism according to claim 7, characterized in that the clock mechanism and an automatic winding mechanism comprising a rocker (7; 107) forming said support, the pawl (15a, 15b; 125a, 125b) being pivoted on the rocker. Mécanisme horloger selon la revendication 8, caractérisé en ce qu'il comporte deux cliquets (15a et 15b ; 125a et 125b), montés pivotant autour de deux axes distincts (17a et 17b ; 117a et 117b) sur la bascule (7 ; 107), un des deux cliquets étant muni dudit premier aimant et l'autre de ces deux cliquets étant muni d'un troisième aimant agencé relativement audit deuxième aimant de manière semblable audit premier aimant.Clock mechanism according to claim 8, characterized in that it comprises two pawls (15a and 15b, 125a and 125b) pivotally mounted about two separate axes (17a and 17b; 117a and 117b) on the rocker (7; 107). one of the two pawls being provided with said first magnet and the other of these two pawls being provided with a third magnet arranged relative to said second magnet in a manner similar to said first magnet.
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EP15201933.7A EP3185080B1 (en) 2015-12-22 2015-12-22 Timepiece mechanism comprising a pivoting member provided with magnetic return means
US15/289,415 US9921546B2 (en) 2015-12-22 2016-10-10 Timepiece mechanism comprising a pivoting member provided with magnetic return means
JP2016217827A JP6326475B2 (en) 2015-12-22 2016-11-08 Timepiece mechanism having a pivoting member with magnetic return means
CN201611191011.8A CN106909049B (en) 2015-12-22 2016-12-21 Clockwork including the pivotal part for the return mechanism that is magnetic is arranged

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JP7023124B2 (en) * 2018-01-26 2022-02-21 セイコーインスツル株式会社 Movement and watches
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EP3839650A1 (en) * 2019-12-18 2021-06-23 ETA SA Manufacture Horlogère Suisse Method for manufacturing at least two mechanical parts
USD938848S1 (en) * 2019-12-26 2021-12-21 Lvmh Swiss Manufactures Sa Oscillating weight
USD1025243S1 (en) 2022-04-08 2024-04-30 Lvmh Swiss Manufactures Sa Oscillating weight

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US3058294A (en) * 1958-06-16 1962-10-16 Durowe A G Inertia wound timepiece with magnetic coupling means
FR1276734A (en) 1960-10-12 1961-11-24 Magnetic drive and linkage system and applications in mechanical and electrical watchmaking
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US20170176937A1 (en) 2017-06-22
JP2017116529A (en) 2017-06-29
EP3185080B1 (en) 2019-12-18
CN106909049B (en) 2019-06-18
CN106909049A (en) 2017-06-30
US9921546B2 (en) 2018-03-20
JP6326475B2 (en) 2018-05-16

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