EP3002636B1 - Disengaging coaxial wheels of a watch movement - Google Patents

Disengaging coaxial wheels of a watch movement Download PDF

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Publication number
EP3002636B1
EP3002636B1 EP14187570.8A EP14187570A EP3002636B1 EP 3002636 B1 EP3002636 B1 EP 3002636B1 EP 14187570 A EP14187570 A EP 14187570A EP 3002636 B1 EP3002636 B1 EP 3002636B1
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EP
European Patent Office
Prior art keywords
wheel
spring
elements
wheels
hub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14187570.8A
Other languages
German (de)
French (fr)
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EP3002636A1 (en
Inventor
Daniel Gruenig
Baptist Wyssbrod
David Benjamin Kraehenbuehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP14187570.8A priority Critical patent/EP3002636B1/en
Priority to US14/856,841 priority patent/US9429913B2/en
Priority to CN201520764455.0U priority patent/CN205263489U/en
Priority to CN201510633009.0A priority patent/CN105487367B/en
Priority to JP2015195632A priority patent/JP6193949B2/en
Publication of EP3002636A1 publication Critical patent/EP3002636A1/en
Priority to HK16111554.7A priority patent/HK1223424A1/en
Application granted granted Critical
Publication of EP3002636B1 publication Critical patent/EP3002636B1/en
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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
    • 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
    • G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
    • 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
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/023—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft allowing rotational slipping when a threshold torque is exceeded
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands
    • G04B19/235—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands mechanisms for correcting the additional hand or hands
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25306—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches
    • G04B19/25313—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement
    • G04B19/2532—Independent date indicating devices activated by hand or by clockwork, e.g. calendar watches driven or released by a steady movement automatically corrected at the end of mounths having less than 31 days

Definitions

  • the present invention relates to a disengageable coaxial wheel device for a watch movement.
  • the invention relates to coaxial wheels coupled by a resilient jumping member to allow disengagement of one wheel relative to the other.
  • An application consists of driving a date disc in addition to a timekeeping pointer and allowing the correction of the position of the date disc, for example when the month comprises less than 31 days.
  • Another application is for driving a display hand of a second time zone, for example the GMT (Greenwich Mean Time) and to allow the modification of the position of the hand for the second selected time zone.
  • GMT Greenwich Mean Time
  • a device with two coaxial wheels (24-hour wheel and switch) disengageable comprising positioning elements with an anchor (projecting element) which is (indirectly) pushed by a spring in projections (hollow elements), is disclosed.
  • the elastic force between the wheels is not exerted by the spring in an axial direction.
  • the known coupling system therefore has essentially three levels and provides a jumper spring which acts radially on a toothing of a third wheel.
  • the third gear defines a plurality of discrete relative angular positions for both wheels. As long as the relative torque between the two wheels is less than the clutching torque, the two wheels are integral in rotation. By applying a disengagement torque between the two wheels, the relative angular position of a desired number of steps is changed.
  • This construction is relatively bulky because the spring generally has lobes that occupy a large area to have the required elastic properties. In addition, this construction is complex and delicate because the shape of the spring is relatively complex and this spring has a thin section to have the aforementioned elastic properties required. Furthermore, the diameter of the third wheel is limited by the space required for the mounting of the radial action spring, which limits the number of jumping steps for a complete turn.
  • An object of the invention is to provide a disengageable coaxial wheel device for a watch movement that is compact, accurate and reliable over a long period of use.
  • Another object of the invention is to provide a disengageable coaxial wheel device for a watch movement that easily allows a fine adjustment of one wheel relative to the other.
  • the invention proposes to be easily adapted to various variants with steps having different angular distances.
  • the present invention relates to a detachable coaxial wheel device for a watch movement which comprises an input wheel, an output wheel, a hub, and a jumper mechanism comprising a spring and positioning elements defining a number of discrete angular positions. of the input wheel with respect to the output wheel about an axis of rotation.
  • the positioning elements comprise hollow elements and salient elements.
  • the spring is configured to apply an elastic force urging the protrusions against the hollow members to couple the wheels together below a disengaging torque.
  • the projecting elements and the hollow members extend in the axial direction and the spring is configured to apply an elastic force in the axial direction.
  • the positioning elements comprise one or more balls forming the projecting elements, the balls being housed in ball holes in the form of holes arranged in one of the exit or entry wheels, and the hollow elements are formed in one surface of the other exit or entry wheels.
  • the spring is integrally formed in one of said exit or entry wheels, and said protrusions are formed as protuberances on elastic spring arms.
  • the spring is in the form of a substantially flat or thin disc, comprising a base portion forming the central hole configured to be mounted around the hub, and an elastic portion comprising an elastic arm of which the end is configured to support the projecting member in one of said hollow members.
  • the spring is formed of a stamped metal sheet.
  • the spring comprises a fixing part with a central orifice fixed to the hub.
  • the input wheel comprises the hollow elements and the output wheel comprises or is integral with the spring.
  • a clock movement comprising a device for disengageable wheels is also described, one of the wheels of the device being engaged by a driving wheel of a motor device of the movement and the other of the wheels of the device being engaged by a device. correction wheel of a motion correction device.
  • the disengageable wheel device can further engage a drive wheel of a date disk.
  • the movement may further include a needle or other display member mounted on the hub of the disengageable wheel device.
  • part of a watch movement 2 comprises a device for disengageable wheels 10 engaged by a drive wheel 4 of a motor device (not shown) and by a correction wheel 8 of a correction device (not shown) .
  • the disengageable wheel device 10 may further engage a drive wheel 6 of a date disc (not shown).
  • the disengageable wheel device 10 comprises an input wheel 12, an output wheel 16, a hub 14, and a jumper mechanism 18.
  • a needle 3, or other display member may be mounted on the hub 14.
  • the hub 14 comprises a central hole 40, allowing the passage of one or more coaxial axes (not shown), by example for the display device hours, minutes and / or seconds.
  • the jumper mechanism 18 is configured to allow the input wheel 12 to be able to undergo a certain rotation with respect to the output wheel 16 over an angular distance defined by one or more notches by applying a relative torque between the two wheels exceeding one certain threshold, called declutching torque.
  • the input wheel 12 comprises teeth 50 engaging teeth of the motor wheel 4, the input wheel 12 being driven by the motor wheel.
  • the output wheel 16 also includes teeth 50 engaging teeth of the correction wheel 8. Alternatively, the teeth 50 of the output wheel 16 engaging teeth of a drive wheel 6 which is coupled to a disk date or other mechanism for displaying a time value.
  • the input wheel 12 comprises a central orifice 32 configured to house a section 38 of the hub 14.
  • the central orifice has a diameter slightly larger than the wheel section 38, so as to allow the free rotation of the input wheel 12 relative to the hub 14.
  • the output wheel 16 has a central orifice 52 configured to be driven or riveted to a fastening section 36 of the hub 14 so that that the output wheel 16 is integral with the hub 14. It is however possible, in one variant, to reverse this configuration, namely that the input wheel is integral with the hub and the output wheel rotatable relative to the hub in that a correction of the position of the needle 3 by the correction wheel 8 is not desired.
  • the hub 14 may be a separate part assembled to one of the wheels as in the embodiments illustrated, but it is possible, in a variant, to form the hub of a part integral with one of the wheels of entry or exit.
  • the needle 3 serves to indicate a second time zone with respect to the display of the main time of the watch movement, the indication of the time zone to be able to be changed without changing the indication of the time. main time of the watch.
  • a time zone operating on a 24-hour schedule will require 24 or more positions in a variant indicating half-hours, ie 48 positions, since in some countries there is a graduation of spindles in units smaller than the hour.
  • the second time zone may have in a variant a display 12 hours.
  • the jumper mechanism 18 comprises a spring 20 and positioning elements 22 defining a number of discrete angular positions of one wheel relative to the other wheel of the disengageable wheel device 10.
  • the spring is configured to applying an elastic force in an axial direction, the axial direction corresponding to a direction parallel to the axis of rotation A of the wheels 12, 16 of the disengageable wheel device 10.
  • the positioning elements 22 comprise hollow elements 24 and projecting elements 26, the projecting elements 26 engaging in the hollow elements 24 in an axial direction and generating, under the action of the spring 20, a securing torque of the rotating wheels.
  • a clutching torque defined, on the one hand, by the geometry of the projecting elements and hollow elements engaged in them and, on the other hand, by the axial thrust force applied by the spring 20.
  • the positioning elements can be arranged close to the periphery of the wheels 12, 16 and thus to have a diameter as large as possible for define the discrete angular positions and therefore the number of jumps or notches per revolution.
  • the spring 20 of the jumper mechanism 18 is a separate piece assembled to the output wheel 16 and made integral with this wheel.
  • the spring 20 comprises a fastening portion 44 with a central orifice 54 and riveted to the hub 14, for example on the wheel fixing portion 36 of the hub 14.
  • other forms of fixing the spring 20 to make it integral with the output wheel 16 are possible, for example by welding, gluing, crimping, or riveting.
  • the driving of the output wheel 16 and the spring 20 on the hub 14 is however advantageous because of its simplicity and the low cost of this manufacturing step.
  • the positioning elements 22 comprise one or more balls 28 housed in holes housing 30 in the form of holes disposed in the output wheel 16 and recesses 24 formed in a surface of the input wheel 12.
  • the balls 28 define therefore projecting elements 26 configured to engage in the hollow members 24 formed in the surface of the input wheel 12.
  • the number of recesses 24, formed in the surface of the input wheel and arranged circularly and regularly around the axis of rotation, defines the number of notches or relative angular positions between the output wheel and the input wheel.
  • the number of projecting elements may be greater than four.
  • the force applied to each projecting element can be reduced compared to a configuration having one, two or three protruding elements, which generally makes it possible to better control the torque of walkout.
  • the support force in the hollows of each element is reduced and consequently the impacts are reduced when the projecting element jumps from one recess and re-engages the next.
  • the spring 20 may be in the form of a flat disc, for example a disc formed of a stamped metal sheet comprising a base portion 42, forming the central hole 54 configured to be riveted to the hub 14, and a portion elastic member 46 comprising elastic arms 48 whose end is configured to bear against a ball 28.
  • the base portion of the spring can be pressed against the wheel 16, however it is also possible to have a space between the spring and wheel.
  • the spring is formed by a simple flat disc and relatively thin which bears on the balls.
  • this disc has openings for increasing its axial elastic deformation capacity.
  • the diameter of the balls 28 is greater than the thickness of the output wheel 12 so that each ball projects beyond the two major faces of this wheel to be supported on one side by the resilient arm of the spring and the other side to be housed in one of the recesses 24. It is however possible in a variant to have a ball of diameter substantially the same or less than the thickness of the output wheel, and in this case the end of the spring may include an extension configured to fit into the hole and press the ball below the surface of the wheel.
  • the bead housings in the input wheel and make the spring integral with the input wheel, mounted on the underside of the wheel 12 illustrated in FIG. Figure 2c , and to form the recesses in the output wheel 16. More generally, one can have the projecting elements mounted in the input wheel 12 and the recesses in the output wheel 16 without departing from the scope of the invention.
  • the input wheel 12 can be identical or similar to the input wheel of the first embodiment described above.
  • the output wheel 16 comprises a spring 20 and projecting elements 26, forming an integral part of the output wheel.
  • the wheel 16 may be in the form of a substantially flat or thin disc, for example a disc formed of a stamped metal sheet, the spring 20 comprising elastic arms 48 stamped into the disc.
  • the projecting elements may be made by stamping a protuberance in each arm 48 near their ends, the protuberances being configured to engage in the recesses 24 of the input wheel 12.
  • the output wheel 16 may also be driven on the hub 14 or be secured to the hub by other means such as welding, gluing or crimping. Also in this embodiment, one can have the spring arms and the projecting elements integrated in the input wheel 12 and the recesses integrated in the output wheel 16 without departing from the scope of the invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Micromachines (AREA)
  • Mechanical Operated Clutches (AREA)

Description

Domaine techniqueTechnical area

La présente invention concerne un dispositif de roues coaxiales débrayables pour un mouvement horloger. En particulier, l'invention concerne des roues coaxiales couplées par un organe élastique sautant afin de permettre le débrayage d'une roue par rapport à l'autre. Une application consiste à entrainer un disque de quantième en plus d'une aiguille d'indication de l'heure et de permettre la correction de la position du disque de quantième, par exemple lorsque le mois comporte moins de 31 jours. Une autre application est pour entrainer une aiguille d'affichage d'un deuxième fuseau horaire, par exemple l'horaire GMT (Greenwich Mean Time) et de permettre la modification de la position de l'aiguille pour le deuxième fuseau horaire choisi.The present invention relates to a disengageable coaxial wheel device for a watch movement. In particular, the invention relates to coaxial wheels coupled by a resilient jumping member to allow disengagement of one wheel relative to the other. An application consists of driving a date disc in addition to a timekeeping pointer and allowing the correction of the position of the date disc, for example when the month comprises less than 31 days. Another application is for driving a display hand of a second time zone, for example the GMT (Greenwich Mean Time) and to allow the modification of the position of the hand for the second selected time zone.

Arrière-plan technologiqueTechnological background

Dans la demande FR 2 429 460 , un dispositif avec deux roues coaxiales (roue de vingt-quatre heures et commutateur) débrayables comprenant des éléments de positionnement avec une cheville (élément saillant) qui est poussée (indirectement) par un ressort dans des saillies (éléments creux), est divulgué. Mais la force élastique entre les roues n'est pas exercée par le ressort selon une direction axiale. Dans les mouvements conventionnels, il est connu d'utiliser un système de deux roues coaxiales avec un accouplement par un ressort fixé sur la première roue et appuyant radialement sur une troisième roue solidaire de la deuxième roue. Le système d'accouplement connu a donc essentiellement trois niveaux et prévoit un ressort-sautoir qui agit radialement sur une denture d'une troisième roue. Pour vaincre cette force élastique radiale, on doit exercer un couple de débrayage sur l'une des deux roues alors que l'autre présente un couple de réaction suffisamment élevé pour permettre l'application dudit couple de débrayage. La troisième roue dentée définit une pluralité de positions angulaires relatives discrètes pour les deux roues. Tant que le couple relatif entre les deux roues est inférieur au couple de débrayage, les deux roues sont solidaires en rotation. En appliquant un couple de débrayage entre les deux roues, on change la position angulaire relative d'un nombre de pas souhaité. Cette construction est relativement encombrante car le ressort présente généralement des lobes qui occupent une surface importante pour avoir les propriétés élastiques requises. De plus, cette construction est complexe et délicate car la forme du ressort est relativement complexe et ce ressort présente une section fine pour avoir les propriétés élastiques requises susmentionnées. Par ailleurs, le diamètre de la troisième roue est limité par l'espace nécessaire pour le montage du ressort à action radiale, ce qui limite le nombre de pas sautants pour un tour complet.In the request FR 2,429,460 , a device with two coaxial wheels (24-hour wheel and switch) disengageable comprising positioning elements with an anchor (projecting element) which is (indirectly) pushed by a spring in projections (hollow elements), is disclosed. But the elastic force between the wheels is not exerted by the spring in an axial direction. In conventional movements, it is known to use a system of two coaxial wheels with a coupling by a spring fixed on the first wheel and pressing radially on a third wheel integral with the second wheel. The known coupling system therefore has essentially three levels and provides a jumper spring which acts radially on a toothing of a third wheel. To overcome this radial elastic force, it must exert a release torque on one of the two wheels while the other has a reaction torque high enough to allow the application of said clutch torque. The third gear defines a plurality of discrete relative angular positions for both wheels. As long as the relative torque between the two wheels is less than the clutching torque, the two wheels are integral in rotation. By applying a disengagement torque between the two wheels, the relative angular position of a desired number of steps is changed. This construction is relatively bulky because the spring generally has lobes that occupy a large area to have the required elastic properties. In addition, this construction is complex and delicate because the shape of the spring is relatively complex and this spring has a thin section to have the aforementioned elastic properties required. Furthermore, the diameter of the third wheel is limited by the space required for the mounting of the radial action spring, which limits the number of jumping steps for a complete turn.

Résumé de l'inventionSummary of the invention

Un but de l'invention est de fournir un dispositif de roues coaxiales débrayables pour un mouvement horloger qui est peu encombrant, précis et fiable sur une longue durée d'utilisation.An object of the invention is to provide a disengageable coaxial wheel device for a watch movement that is compact, accurate and reliable over a long period of use.

Un autre but de l'invention est de fournir un dispositif de roues coaxiales débrayables pour un mouvement horloger qui permet aisément un ajustement fin d'une roue par rapport à l'autre.Another object of the invention is to provide a disengageable coaxial wheel device for a watch movement that easily allows a fine adjustment of one wheel relative to the other.

Il est avantageux de fournir un dispositif de roues coaxiales débrayables pour un mouvement horloger qui est facile à fabriquer et donc économique. De plus, l'invention se propose de pouvoir être facilement adaptée à diverses variantes avec des pas ayant des distances angulaires différentes.It is advantageous to provide a disengageable coaxial wheel device for a watch movement which is easy to manufacture and therefore economical. In addition, the invention proposes to be easily adapted to various variants with steps having different angular distances.

Des objets de l'invention sont réalisés par un mécanisme de roues coaxiales débrayables pour un mouvement de montre selon la revendication 1. Les revendications dépendantes décrivent des aspects avantageux de l'invention.Objects of the invention are realized by a mechanism of disengageable coaxial wheels for a watch movement according to claim 1. The dependent claims describe advantageous aspects of the invention.

La présente invention concerne un dispositif de roues coaxiales débrayables pour un mouvement horloger qui comprend une roue d'entrée, une roue de sortie, un moyeu, et un mécanisme sautoir comprenant un ressort et des éléments de positionnement définissant un certain nombre de positions angulaires discrètes de la roue d'entrée par rapport à la roue de sortie autour d'un axe de rotation. Les éléments de positionnement comprennent des éléments creux et des éléments saillants. Le ressort est configuré pour appliquer une force élastique poussant les éléments saillants contre les éléments creux pour coupler les roues ensemble en dessous d'un couple de débrayage. Les éléments saillants et les éléments creux s'étendent dans la direction axiale et le ressort est configuré pour appliquer une force élastique dans la direction axiale.The present invention relates to a detachable coaxial wheel device for a watch movement which comprises an input wheel, an output wheel, a hub, and a jumper mechanism comprising a spring and positioning elements defining a number of discrete angular positions. of the input wheel with respect to the output wheel about an axis of rotation. The positioning elements comprise hollow elements and salient elements. The spring is configured to apply an elastic force urging the protrusions against the hollow members to couple the wheels together below a disengaging torque. The projecting elements and the hollow members extend in the axial direction and the spring is configured to apply an elastic force in the axial direction.

Dans une forme d'exécution, les éléments de positionnement comprennent une ou plusieurs billes formant les éléments saillants, les billes étant logées dans des logements de bille sous forme de trous disposés dans une des roues de sortie ou d'entrée, et les éléments creux sont formés dans une surface de l'autre des roues de sortie ou d'entrée.In one embodiment, the positioning elements comprise one or more balls forming the projecting elements, the balls being housed in ball holes in the form of holes arranged in one of the exit or entry wheels, and the hollow elements are formed in one surface of the other exit or entry wheels.

Dans une autre forme d'exécution, le ressort est formé intégralement dans une desdites roues de sortie ou d'entrée, et lesdits éléments saillants sont réalisés sous forme de protubérances sur des bras élastiques du ressort.In another embodiment, the spring is integrally formed in one of said exit or entry wheels, and said protrusions are formed as protuberances on elastic spring arms.

Selon une forme d'exécution avantageuse, il y a une pluralité d'éléments saillants répartis de manière uniforme autour de l'axe de rotation.According to an advantageous embodiment, there is a plurality of projecting elements distributed uniformly around the axis of rotation.

Selon une forme d'exécution avantageuse, le ressort est sous forme d'un disque essentiellement plat ou à faible épaisseur, comprenant une partie de base formant le trou central configuré pour être monté autour du moyeu, et une partie élastique comprenant un bras élastique dont l'extrémité est configurée pour appuyer l'élément saillant dans un desdits éléments creux.According to an advantageous embodiment, the spring is in the form of a substantially flat or thin disc, comprising a base portion forming the central hole configured to be mounted around the hub, and an elastic portion comprising an elastic arm of which the end is configured to support the projecting member in one of said hollow members.

Selon une forme d'exécution avantageuse, le ressort est formé d'une feuille de métal estampée.According to an advantageous embodiment, the spring is formed of a stamped metal sheet.

Selon une forme d'exécution avantageuse, le ressort comprend une partie de fixation avec un orifice central fixée au moyeu.According to an advantageous embodiment, the spring comprises a fixing part with a central orifice fixed to the hub.

Selon une forme d'exécution avantageuse, la roue d'entrée comprend les éléments creux et la roue de sortie comprend ou est solidaire du ressort.According to an advantageous embodiment, the input wheel comprises the hollow elements and the output wheel comprises or is integral with the spring.

Dans la présente invention, on décrit aussi un mouvement horloger comprenant un dispositif de roues débrayables, l'une des roues du dispositif étant engagée par une roue motrice d'un dispositif moteur du mouvement et l'autre des roues du dispositif étant engagée par une roue de correction d'un dispositif de correction du mouvement.In the present invention, a clock movement comprising a device for disengageable wheels is also described, one of the wheels of the device being engaged by a driving wheel of a motor device of the movement and the other of the wheels of the device being engaged by a device. correction wheel of a motion correction device.

Le dispositif de roues débrayables peut engager en outre une roue d'entrainement d'un disque de quantième.The disengageable wheel device can further engage a drive wheel of a date disk.

Le mouvement peut en outre comprendre une aiguille ou un autre organe d'affichage monté sur le moyeu du dispositif de roues débrayables.The movement may further include a needle or other display member mounted on the hub of the disengageable wheel device.

D'autres buts et aspects avantageux de l'invention apparaitront à la lecture des revendications, ainsi que de la description détaillée de formes d'exécution ci-après.Other objects and advantageous aspects of the invention will appear on reading the claims, as well as on the detailed description of the embodiments below.

Brève description des dessinsBrief description of the drawings

L'invention sera décrite ci-après à l'aide de dessins annexés, donnés à titre d'exemples nullement limitatifs, dans lesquels :

  • La Fig. 1 est une vue en perspective schématique d'une partie d'un mouvement horloger comprenant un dispositif de roues débrayables selon une première forme d'exécution de l'invention ;
  • La Fig. 2a est une vue en perspective d'un dispositif de roues débrayables selon la première forme d'exécution de l'invention;
  • La Fig. 2b est une vue en coupe du dispositif de la figure 2a;
  • La Fig. 2c est une vue éclatée en perspective du dispositif de la figure 2a; et
  • La Fig. 3 est une vue en perspective d'un dispositif de roues débrayables selon une deuxième forme d'exécution de l'invention ;
The invention will be described hereinafter with the aid of annexed drawings, given by way of non-limiting examples, in which:
  • The Fig. 1 is a schematic perspective view of a part of a watch movement comprising a disengageable wheel device according to a first embodiment of the invention;
  • The Fig. 2a is a perspective view of a disengageable wheel device according to the first embodiment of the invention;
  • The Fig. 2b is a sectional view of the device of the figure 2a ;
  • The Fig. 2c is an exploded view in perspective of the device of the figure 2a ; and
  • The Fig. 3 is a perspective view of a disengageable wheel device according to a second embodiment of the invention;

Description détaillée de l'inventionDetailed description of the invention

Faisant référence aux figures, commençant par la figure 1, une partie d'un mouvement horloger 2 comprend un dispositif de roues débrayables 10 engagé par une roue motrice 4 d'un dispositif moteur (non-illustré) et par une roue de correction 8 d'un dispositif de correction (non-illustré). Le dispositif de roues débrayables 10 peut en outre engager une roue d'entrainement 6 d'un disque de quantième (non-illustré).Referring to the figures starting with figure 1 , part of a watch movement 2 comprises a device for disengageable wheels 10 engaged by a drive wheel 4 of a motor device (not shown) and by a correction wheel 8 of a correction device (not shown) . The disengageable wheel device 10 may further engage a drive wheel 6 of a date disc (not shown).

Le dispositif de roues débrayables 10 comprend une roue d'entrée 12, une roue de sortie 16, un moyeu 14, et un mécanisme sautoir 18. Une aiguille 3, ou un autre organe d'affichage peut être monté sur le moyeu 14. Dans les formes d'exécution illustrées, le moyeu 14 comprend un trou central 40, permettant le passage d'une ou plusieurs axes coaxiaux (non-illustrés), par exemple pour le dispositif d'affichage des heures, des minutes et/ou de secondes.The disengageable wheel device 10 comprises an input wheel 12, an output wheel 16, a hub 14, and a jumper mechanism 18. A needle 3, or other display member may be mounted on the hub 14. In the embodiments illustrated, the hub 14 comprises a central hole 40, allowing the passage of one or more coaxial axes (not shown), by example for the display device hours, minutes and / or seconds.

Le mécanisme sautoir 18 est configuré pour permettre à la roue d'entrée 12 de pouvoir subir une certaine rotation par rapport à la roue de sortie 16 sur une distance angulaire définie par un ou plusieurs crans en appliquant un couple relatif entre les deux roues dépassant un certain seuil, dit couple de débrayage. La roue d'entrée 12 comprend des dents 50 engageant des dents de la roue moteur 4, la roue d'entrée 12 étant donc entraînée par la roue moteur. La roue de sortie 16 comprend également des dents 50 engageant des dents de la roue de correction 8. Selon la variante, les dents 50 de la roue de sortie 16 engageant des dents d'une roue d'entraînement 6 qui est couplée à un disque de quantième ou autre mécanisme d'affichage d'une valeur temporelle.The jumper mechanism 18 is configured to allow the input wheel 12 to be able to undergo a certain rotation with respect to the output wheel 16 over an angular distance defined by one or more notches by applying a relative torque between the two wheels exceeding one certain threshold, called declutching torque. The input wheel 12 comprises teeth 50 engaging teeth of the motor wheel 4, the input wheel 12 being driven by the motor wheel. The output wheel 16 also includes teeth 50 engaging teeth of the correction wheel 8. Alternatively, the teeth 50 of the output wheel 16 engaging teeth of a drive wheel 6 which is coupled to a disk date or other mechanism for displaying a time value.

La roue d'entrée 12 comprend un orifice central 32 configuré pour loger une section 38 du moyeu 14. Dans les formes d'exécution illustrées, l'orifice central a un diamètre légèrement plus grand que la section de roue 38, de sorte à permettre la rotation libre de la roue d'entrée 12 par rapport au moyeu 14. Dans cette forme d'exécution, la roue de sortie 16 a un orifice central 52 configuré pour être chassé ou rivée sur une section de fixation 36 du moyeu 14 de sorte que la roue de sortie 16 soit solidaire du moyeu 14. Il est toutefois possible, dans une variante, d'inverser cette configuration, à savoir que la roue d'entrée est solidaire du moyeu et la roue de sortie pouvant tourner par rapport au moyeu dans la mesure où une correction de la position de l'aiguille 3 par la roue de correction 8 n'est pas voulue. Le moyeu 14 peut être une pièce distincte assemblée à l'une des roue comme dans les formes d'exécution illustrées, mais il est possible, dans une variante, de former le moyeu d'une pièce solidaire avec l'une des roues d'entrée ou de sortie.The input wheel 12 comprises a central orifice 32 configured to house a section 38 of the hub 14. In the illustrated embodiments, the central orifice has a diameter slightly larger than the wheel section 38, so as to allow the free rotation of the input wheel 12 relative to the hub 14. In this embodiment, the output wheel 16 has a central orifice 52 configured to be driven or riveted to a fastening section 36 of the hub 14 so that that the output wheel 16 is integral with the hub 14. It is however possible, in one variant, to reverse this configuration, namely that the input wheel is integral with the hub and the output wheel rotatable relative to the hub in that a correction of the position of the needle 3 by the correction wheel 8 is not desired. The hub 14 may be a separate part assembled to one of the wheels as in the embodiments illustrated, but it is possible, in a variant, to form the hub of a part integral with one of the wheels of entry or exit.

Dans une variante avantageuse, l'aiguille 3 sert à indiquer un deuxième fuseau horaire par rapport à l'affichage de l'heure principale du mouvement horloger, l'indication du fuseau horaire devant pouvoir être changée sans pour autant changer l'indication de l'heure principale de la montre. Un fuseau horaire fonctionnant selon un horaire à 24 heures nécessitera 24 positions ou plus dans une variante indiquant les demi-heures, soit 48 positions, puisque dans certains pays il y a une graduation de fuseaux en unités plus petites que l'heure. On notera que le deuxième fuseau horaire peut avoir dans une variante un affichage sur 12 heures.In an advantageous variant, the needle 3 serves to indicate a second time zone with respect to the display of the main time of the watch movement, the indication of the time zone to be able to be changed without changing the indication of the time. main time of the watch. A time zone operating on a 24-hour schedule will require 24 or more positions in a variant indicating half-hours, ie 48 positions, since in some countries there is a graduation of spindles in units smaller than the hour. Note that the second time zone may have in a variant a display 12 hours.

Lorsque l'on souhaite corriger le fuseau horaire ou la position du disque de quantième, un couple est appliqué sur la roue de correction 8 faisant tourner la roue de sortie 16 lorsque le couple sur cette roue dépasse le couple de débrayage du mécanisme sautoir 19, la roue d'entrée 12 étant bloquée par la roue moteur 4. Dans la variante illustrée, en appliquant un couple suffisamment élevé sur la roue de correction 8, on peut donc faire tourner la roue de sortie 16 ainsi que l'aiguille 3 (solidaire de la roue de sortie par le moyeu 14) et le dispositif d'entraînement de quantième engrenant la roue de sortie.When it is desired to correct the time zone or the position of the date disk, a torque is applied to the correction wheel 8 rotating the output wheel 16 when the torque on this wheel exceeds the disengagement torque of the jumper mechanism 19, the input wheel 12 being blocked by the drive wheel 4. In the variant illustrated, by applying a sufficiently high torque to the correction wheel 8, it is therefore possible to rotate the output wheel 16 and the needle 3 (integral). the output wheel by the hub 14) and the date drive device meshing with the output wheel.

Le mécanisme sautoir 18 comprend un ressort 20 et des éléments de positionnement 22 définissant un certain nombre de positions angulaires discrets d'une roue par rapport à l'autre roue du dispositif de roues débrayables 10. Dans l'invention, le ressort est configuré pour appliquer une force élastique dans une direction axiale, la direction axiale correspondant à une direction parallèle à l'axe de rotation A des roues 12, 16 du dispositif de roues débrayables 10.The jumper mechanism 18 comprises a spring 20 and positioning elements 22 defining a number of discrete angular positions of one wheel relative to the other wheel of the disengageable wheel device 10. In the invention, the spring is configured to applying an elastic force in an axial direction, the axial direction corresponding to a direction parallel to the axis of rotation A of the wheels 12, 16 of the disengageable wheel device 10.

Les éléments de positionnement 22 comprennent des éléments creux 24 et des éléments saillants 26, les éléments saillants 26 s'engageant dans les éléments creux 24 dans une direction axiale et générant sous l'action du ressort 20 un couple de solidarisation des roues en rotation. Tant que le couple appliqué entre les deux roues reste inférieur à un couple de débrayage défini par le couple maximal de solidarisation des roues en rotation, la roue d'entrée 12 et la roue de sortie 16 restent solidaires et tournent ensemble. Le couple de débrayage est défini, d'une part, par la géométrie des éléments saillants et des éléments creux engagés dans ceux-ci et, d'autre part, par la force de poussée axiale appliquée par le ressort 20.The positioning elements 22 comprise hollow elements 24 and projecting elements 26, the projecting elements 26 engaging in the hollow elements 24 in an axial direction and generating, under the action of the spring 20, a securing torque of the rotating wheels. As long as the torque applied between the two wheels remains less than a clutching torque defined by the maximum torque for securing the wheels in rotation, the input wheel 12 and the output wheel 16 remain integral and rotate together. The clutching torque is defined, on the one hand, by the geometry of the projecting elements and hollow elements engaged in them and, on the other hand, by the axial thrust force applied by the spring 20.

L'un des avantages importants de cette configuration est que l'on peut disposer les éléments de positionnement proches de la périphérie des roues 12, 16 et donc de bénéficier d'un diamètre aussi grand que possible pour définir les positions angulaires discrètes et donc le nombre de sauts ou de crans par révolution.One of the important advantages of this configuration is that the positioning elements can be arranged close to the periphery of the wheels 12, 16 and thus to have a diameter as large as possible for define the discrete angular positions and therefore the number of jumps or notches per revolution.

Un autre avantage de cette configuration est que le ressort pour l'application d'une force axiale est relativement simple à construire et à assembler au dispositif. Cela permet aussi d'avoir un mécanisme robuste, fiable et qu'on peut calibrer facilement pour définir avec une grande précision le couple de débrayage souhaité.Another advantage of this configuration is that the spring for the application of axial force is relatively simple to build and assemble to the device. This also allows for a robust, reliable and easily calibrated mechanism to define the desired clutch torque with great precision.

Dans une première forme d'exécution illustrée dans les figures 2a à 2c, le ressort 20 du mécanisme sautoir 18 est une pièce distincte assemblée à la roue de sortie 16 et rendue solidaire de cette roue. Dans la variante illustrée, le ressort 20 comprend une partie de fixation 44 avec un orifice central 54 et rivée sur le moyeu 14, par exemple sur la partie de fixation de roue 36 du moyeu 14. Toutefois, d'autres formes de fixation du ressort 20 pour le rendre solidaire de la roue de sortie 16 sont envisageables, par exemple par soudage, collage, sertissage, ou rivetage. Le chassage de la roue de sortie 16 ainsi que le ressort 20 sur le moyeu 14 est toutefois avantageux par sa simplicité et le faible coût de cette étape fabrication.In a first embodiment illustrated in the Figures 2a to 2c , the spring 20 of the jumper mechanism 18 is a separate piece assembled to the output wheel 16 and made integral with this wheel. In the variant illustrated, the spring 20 comprises a fastening portion 44 with a central orifice 54 and riveted to the hub 14, for example on the wheel fixing portion 36 of the hub 14. However, other forms of fixing the spring 20 to make it integral with the output wheel 16 are possible, for example by welding, gluing, crimping, or riveting. The driving of the output wheel 16 and the spring 20 on the hub 14 is however advantageous because of its simplicity and the low cost of this manufacturing step.

Dans la variante illustrée dans les figures 2a à 2c, les éléments de positionnement 22 comprennent une ou plusieurs billes 28 logées dans des logements de billes 30 sous forme de trous disposés dans la roue de sortie 16 et des creux 24 formés dans une surface de la roue d'entrée 12. Les billes 28 définissent donc des éléments saillants 26 configurés pour s'engager dans les éléments creux 24 formés dans la surface de la roue d'entrée 12. Le nombre de creux 24, formés dans la surface de la roue d'entrée et agencés circulairement et de manière régulière autour de l'axe de rotation, définit le nombre de crans ou de positions angulaires relatifs entre la roue de sortie et la roue d'entrée.In the variant illustrated in the Figures 2a to 2c , the positioning elements 22 comprise one or more balls 28 housed in holes housing 30 in the form of holes disposed in the output wheel 16 and recesses 24 formed in a surface of the input wheel 12. The balls 28 define therefore projecting elements 26 configured to engage in the hollow members 24 formed in the surface of the input wheel 12. The number of recesses 24, formed in the surface of the input wheel and arranged circularly and regularly around the axis of rotation, defines the number of notches or relative angular positions between the output wheel and the input wheel.

Il est possible de n'avoir qu'un seul élément saillant, par exemple dans cette forme d'exécution une seule bille 28, toutefois il est préférable d'avoir au moins deux billes à des positions diamétralement opposées de sorte à équilibrer la force de poussée axiale sur les roues 12, 16. De préférence il y au moins quatre éléments saillants répartis de manière uniforme, c'est-à-dire tous les 90°, de sorte à avoir une poussée axiale sur la roue d'entrée 12 stable et équilibrée, le nombre d'éléments saillants pouvant être plus grand que quatre. En ayant au moins quatre éléments saillants 26 engageant des éléments creux 24, la force appliquée sur chaque élément saillant peut être réduite comparée à une configuration ayant une, deux ou trois éléments saillant, cela permettant dans l'ensemble de pouvoir mieux maîtriser le couple de débrayage. En effet, en augmentant le nombre d'éléments saillants, on diminue la force d'appui dans les creux de chaque élément et par conséquent on réduit les chocs lorsque l'élément saillant saute d'un creux et réengage le prochain.It is possible to have only one projecting element, for example in this embodiment a single ball 28, however it is preferable to have at least two balls in diametrically opposite positions so as to balance the force of axial thrust on the wheels 12, 16. Preferably there are at least four salient elements distributed in a uniform manner, that is to say all the 90 °, so as to have an axial thrust on the input wheel 12 stable and balanced, the number of projecting elements may be greater than four. By having at least four projecting elements 26 engaging hollow elements 24, the force applied to each projecting element can be reduced compared to a configuration having one, two or three protruding elements, which generally makes it possible to better control the torque of walkout. In fact, by increasing the number of projecting elements, the support force in the hollows of each element is reduced and consequently the impacts are reduced when the projecting element jumps from one recess and re-engages the next.

Dans la forme d'exécution de la figure 2a, le ressort 20 peut être sous forme d'un disque plat, par exemple un disque formé d'une feuille de métal estampée comprenant une partie de base 42, formant le trou central 54 configuré pour être rivé sur le moyeu 14, et une partie élastique 46 comprenant des bras élastiques 48 dont l'extrémité est configurée pour être en appui contre une bille 28. La partie de base du ressort peut être plaquée contre la roue 16, toutefois il est aussi possible d'avoir un espace entre le ressort et la roue. Dans une variante simplifiée, le ressort est formé par un simple disque plat et relativement mince qui appuie sur les billes. Dans une autre variante, ce disque présente des ouvertures permettant d'augmenter sa capacité de déformation élastique axiale.In the form of execution of the figure 2a the spring 20 may be in the form of a flat disc, for example a disc formed of a stamped metal sheet comprising a base portion 42, forming the central hole 54 configured to be riveted to the hub 14, and a portion elastic member 46 comprising elastic arms 48 whose end is configured to bear against a ball 28. The base portion of the spring can be pressed against the wheel 16, however it is also possible to have a space between the spring and wheel. In a simplified variant, the spring is formed by a simple flat disc and relatively thin which bears on the balls. In another variant, this disc has openings for increasing its axial elastic deformation capacity.

Le diamètre des billes 28 est plus grand que l'épaisseur de la roue de sortie 12 de sorte que chaque bille projette au-delà des deux faces majeures de cette roue pour pouvoir être appuyée d'un côté par le bras élastique du ressort et de l'autre côté pour se loger dans un des creux 24. Il est toutefois envisageable dans une variante d'avoir une bille de diamètre essentiellement identique ou inférieure à l'épaisseur de la roue de sortie, et dans ce cas l'extrémité du ressort peut comprendre une extension configurée pour s'insérer dans le trou et appuyer sur la bille sous la surface de la roue.The diameter of the balls 28 is greater than the thickness of the output wheel 12 so that each ball projects beyond the two major faces of this wheel to be supported on one side by the resilient arm of the spring and the other side to be housed in one of the recesses 24. It is however possible in a variant to have a ball of diameter substantially the same or less than the thickness of the output wheel, and in this case the end of the spring may include an extension configured to fit into the hole and press the ball below the surface of the wheel.

Dans une variante alternative, il est également possible d'avoir une forme saillante à l'extrémité du bras de ressort qui s'étend en travers des logements 30 configurée pour engager les creux 24, c'est-à-dire sans avoir de billes ou d'autres pièces intermédiaires.In an alternative embodiment, it is also possible to have a protruding shape at the end of the spring arm which extends across the housings 30 configured to engage the recesses 24, that is to say without having balls or other intermediate parts.

Dans une variante, il est également possible de former les logements de billes dans la roue d'entrée et rendre le ressort solidaire de la roue d'entrée, montée sur le dessous de la roue 12 illustrée à la figure 2c, et de former les creux dans la roue de sortie 16. Plus généralement, on peut avoir les éléments saillants montés dans la roue d'entrée 12 et les creux dans la roue de sortie 16 sans sortir du cadre de l'invention.Alternatively, it is also possible to form the bead housings in the input wheel and make the spring integral with the input wheel, mounted on the underside of the wheel 12 illustrated in FIG. Figure 2c , and to form the recesses in the output wheel 16. More generally, one can have the projecting elements mounted in the input wheel 12 and the recesses in the output wheel 16 without departing from the scope of the invention.

Faisant référence à la figure 3, une autre forme d'exécution est illustrée, dans laquelle le mécanisme sautoir 18 est intégré directement dans les roues de sortie et d'entrée 16, 12. La roue d'entrée 12 peut être identique ou similaire à la roue d'entrée de la première forme d'exécution décrite précédemment. La roue de sortie 16 comprend un ressort 20 et des éléments saillants 26, faisant partie intégrale de la roue de sortie. Dans une variante avantageuse, la roue 16 peut être sous forme d'un disque essentiellement plat ou à faible épaisseur, par exemple un disque formé d'une feuille de métal estampée, le ressort 20 comprenant des bras élastiques 48 estampés dans le disque. Les éléments saillants peuvent être réalisés en emboutissant une protubérance dans chaque bras 48 proche de leurs extrémités, les protubérances étant configurées pour engager dans les creux 24 de la roue d'entrée 12. Dans cette forme d'exécution la roue de sortie 16 peut également être chassée sur le moyeu 14 ou être rendu solidaire du moyeu par d'autres moyens tels que le soudage, collage ou sertissage. Aussi dans cette forme d'exécution, on peut avoir les bras de ressort et les éléments saillants intégrés dans la roue d'entrée 12 et les creux intégrés dans la roue de sortie 16 sans sortir du cadre de l'invention.Referring to the figure 3 , another embodiment is illustrated, in which the jumper mechanism 18 is integrated directly into the output and input wheels 16, 12. The input wheel 12 can be identical or similar to the input wheel of the first embodiment described above. The output wheel 16 comprises a spring 20 and projecting elements 26, forming an integral part of the output wheel. In an advantageous variant, the wheel 16 may be in the form of a substantially flat or thin disc, for example a disc formed of a stamped metal sheet, the spring 20 comprising elastic arms 48 stamped into the disc. The projecting elements may be made by stamping a protuberance in each arm 48 near their ends, the protuberances being configured to engage in the recesses 24 of the input wheel 12. In this embodiment the output wheel 16 may also be driven on the hub 14 or be secured to the hub by other means such as welding, gluing or crimping. Also in this embodiment, one can have the spring arms and the projecting elements integrated in the input wheel 12 and the recesses integrated in the output wheel 16 without departing from the scope of the invention.

Claims (13)

  1. Mechanism with coaxial disengageable wheels (10) for a timepiece movement including an input wheel (12), an output wheel (16), a hub (14), and a jumper mechanism (18) including a spring (20) and positioning elements (22) defining a certain number of discrete angular positions of the input wheel with respect to the output wheel around an axis of rotation (A), the axis of rotation defining an axial direction, the positioning elements including hollow elements (24) and protruding elements (26), the spring being configured to apply an elastic force pushing the protruding elements against the hollow elements to couple the wheels to each other below an disengagement torque,
    characterized in that the protruding elements and the hollow elements extend in the axial direction and the spring is configured to apply an elastic force in the axial direction.
  2. Mechanism according to claim 1, characterized in that the positioning elements include one or more balls (28) forming the protruding elements, the balls being housed in ball housings (30) in the form of holes disposed in one of the input or output wheels, and the hollow elements (24) are formed in a surface of the other wheel.
  3. Mechanism according to claim 1, characterized in that the spring is entirely formed one of said input or output wheels, and said protruding elements are made in the form of protuberances on the elastic arms (48) of the spring.
  4. Mechanism according to claim 1, 2 or 3, characterized in that the mechanism includes a plurality of protruding elements distributed in a uniform manner around the axis of rotation.
  5. Mechanism according to the preceding claim, characterized in that there are at least four protruding elements.
  6. Mechanism according to any of the preceding claims, characterized in that the spring is in the form of an essentially flat disc defining a base portion (42) forming the central hole (54), configured to be mounted around the hub, and an elastic portion (46) including at least one elastic arm (48) whose end is configured to press the protruding element into one of said hollow elements.
  7. Mechanism according to the preceding claim, characterized in that the spring is formed from a stamped metal sheet.
  8. Mechanism according to any of the preceding claims, characterized in that the hollow elements are arranged close to the periphery of said output or input wheel.
  9. Mechanism according to any of the preceding claims, characterized in that the spring includes a securing portion (44) having a central orifice (54) and fixed to said hub.
  10. Mechanism according to any of the preceding claims, characterized in that the input wheel includes the hollow elements and the output wheel includes or is integral with the spring.
  11. Timepiece movement including a mechanism with disengageable wheels according to any of the preceding claims, one of the wheels of the mechanism being engaged with a drive wheel (4) of a drive device of the movement and the other wheel of the mechanism being engaged with a correction wheel (8) of a correction device of the movement.
  12. Timepiece movement according to the preceding claim, characterized in that the disengageable wheel mechanism also engages with a drive wheel (6) of a date disc of the movement.
  13. Timepiece movement according to any of the two preceding claims, characterized in that the movement further includes a hand (3) or another display member mounted on the hub of the disengageable wheel mechanism.
EP14187570.8A 2014-10-02 2014-10-02 Disengaging coaxial wheels of a watch movement Active EP3002636B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14187570.8A EP3002636B1 (en) 2014-10-02 2014-10-02 Disengaging coaxial wheels of a watch movement
US14/856,841 US9429913B2 (en) 2014-10-02 2015-09-17 Coaxial disengageable wheels for a timepiece movement
CN201520764455.0U CN205263489U (en) 2014-10-02 2015-09-29 A mechanism and clock cassette mechanism that is used for clock cassette mechanism's coaxial thrown off wheel that has
CN201510633009.0A CN105487367B (en) 2014-10-02 2015-09-29 Coaxial disengagable wheel for watch and clock movement
JP2015195632A JP6193949B2 (en) 2014-10-02 2015-10-01 Disengageable coaxial wheel for watch movement
HK16111554.7A HK1223424A1 (en) 2014-10-02 2016-10-04 Coaxial disengageable wheels for a timepiece movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14187570.8A EP3002636B1 (en) 2014-10-02 2014-10-02 Disengaging coaxial wheels of a watch movement

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EP3002636A1 EP3002636A1 (en) 2016-04-06
EP3002636B1 true EP3002636B1 (en) 2017-08-09

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US (1) US9429913B2 (en)
EP (1) EP3002636B1 (en)
JP (1) JP6193949B2 (en)
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HK (1) HK1223424A1 (en)

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EP3705949A1 (en) * 2019-03-05 2020-09-09 ETA SA Manufacture Horlogère Suisse Torque limiter mechanism for a timepiece
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CN105487367B (en) 2018-04-06
JP2016075677A (en) 2016-05-12
CN105487367A (en) 2016-04-13
CN205263489U (en) 2016-05-25
HK1223424A1 (en) 2017-07-28
EP3002636A1 (en) 2016-04-06
US9429913B2 (en) 2016-08-30
JP6193949B2 (en) 2017-09-06
US20160098011A1 (en) 2016-04-07

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