EP3772673A1 - Timepiece indexing element - Google Patents

Timepiece indexing element Download PDF

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Publication number
EP3772673A1
EP3772673A1 EP19190678.3A EP19190678A EP3772673A1 EP 3772673 A1 EP3772673 A1 EP 3772673A1 EP 19190678 A EP19190678 A EP 19190678A EP 3772673 A1 EP3772673 A1 EP 3772673A1
Authority
EP
European Patent Office
Prior art keywords
indexing
elastic arm
component
indexing element
axis
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
EP19190678.3A
Other languages
German (de)
French (fr)
Other versions
EP3772673B1 (en
Inventor
Julien Saglini
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
Original Assignee
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 EP19190678.3A priority Critical patent/EP3772673B1/en
Priority to US16/896,485 priority patent/US11774911B2/en
Priority to JP2020109323A priority patent/JP7014861B2/en
Priority to CN202010782462.9A priority patent/CN112346325B/en
Publication of EP3772673A1 publication Critical patent/EP3772673A1/en
Application granted granted Critical
Publication of EP3772673B1 publication Critical patent/EP3772673B1/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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction
    • G04B11/04—Pawl constructions therefor, e.g. pawl secured to an oscillating member actuating a ratchet
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values
    • 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
    • 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
    • G04B11/003—Clutch mechanism between two rotating members with transfer of movement in both directions, possibly with limitation on the transfer of power with friction member, e.g. with spring action
    • 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
    • G04B19/02—Back-gearing arrangements between gear train and 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

Definitions

  • the invention relates to a timepiece indexing element, arranged to cooperate in a substantially coaxial manner, around an axis around which said indexing element extends, with a timepiece component comprising an indexing relief defining a plurality of indexing positions, said indexing element comprising a first bearing surface arranged to cooperate in abutment bearing with a second complementary bearing surface that a said component comprises, and comprising elastic return means arranged to exerting a thrust force that is substantially radial with respect to said axis on a said component in order to press it against said first bearing surface, and comprising indexing means arranged to cooperate with a said indexing relief of a said component for relative indexing between said indexing element and said component.
  • the invention also relates to a timepiece assembly comprising at least one such indexing element, and at least one such timepiece component comprising an indexing relief defining a plurality of indexing positions, said at least one indexing element. and said at least one component being arranged to cooperate with one another in a substantially coaxial manner, around said axis, for their relative indexing with respect to one another.
  • the invention also relates to a clockwork mechanism comprising at least one such indexing element, and / or such a clockwork assembly.
  • the invention also relates to a timepiece, in particular a watch, comprising at least one such timepiece mechanism and / or at least one such indexing element, and / or such a timepiece assembly.
  • the invention also relates to the field of clockwork mechanisms, and in particular display, and / or adjustment, and / or selection mechanisms.
  • time zone / jumping hour wheels consist of several boards / pinions, linked together by a star / cam constrained by a spring element (pawl).
  • pawl spring element
  • the invention proposes both to make the adjustment and indexing mechanisms more reliable, to reduce their thickness, and to guarantee precise and controlled indexing between two elements.
  • the invention relates to a timepiece indexing element, according to claim 1.
  • the invention also relates to a timepiece assembly comprising at least one such indexing element, and at least one such timepiece component comprising an indexing relief defining a plurality of indexing positions, said at least one indexing element. and said at least one component being arranged to cooperate with one another in a substantially coaxial manner, for their relative indexing with respect to one another.
  • the invention also relates to a clockwork mechanism comprising at least one such indexing element, and / or such a clockwork assembly.
  • the invention also relates to a timepiece, in particular a watch, comprising at least one such timepiece mechanism and / or at least one such indexing element, and / or such a timepiece assembly.
  • the invention relates to a timepiece indexing element 10, arranged to cooperate in a substantially coaxial manner, around an axis D around which this indexing element 10 extends, with a timepiece component 20:
  • This component 20 comprises an indexing relief 30, defining a plurality of indexing positions.
  • This indexing relief can be formed by toothing as illustrated by the figures, or by a groove, or by notches, or protrusions, or pins, or the like.
  • the indexing element 10 comprises a first bearing surface 11, which is arranged to cooperate in abutment bearing with a second complementary bearing surface 21 which such a component 20 comprises. This zone of contact between the element d 'indexing 10 and component 20 ensures the perfect positioning of one relative to the other: their position is both known and controlled.
  • the indexing element 10 comprises elastic return means 12, which are arranged to exert a thrust force that is substantially radial, with respect to the axis D, on such a component 20, in order to press it against the first surface. support 11.
  • the indexing element 10 comprises indexing means 13, which are arranged to cooperate with an indexing relief 30 of a component 20 for relative indexing between the indexing element 1 and this component 20.
  • the elastic return means 12 comprise at least a first elastic arm 14, comprising a first indexing surface 15 which the indexing means 13 comprise. And this first elastic arm 14 is arranged to exert a force of thrust substantially radial with respect to the axis D on such a component 20.
  • the elastic return means 12 also comprise at least one second elastic arm 16, which is arranged to exert a thrust force substantially radial with respect to the axis D on at least one first elastic arm 14.
  • the second elastic arm 16 is arranged to exert a return torque greater than the return torque of the first elastic arm 14.
  • the second elastic arm 16 is arranged to travel, in its bending stroke, a radial extension (or arrow) less than that of the first arm elastic 14.
  • the first inner elastic arm 14 has a deflection of 0.26 mm, while that of the second elastic arm 16 is 0.21 mm.
  • This arrangement makes it possible to ensure torque retention, and here to guarantee a minimum torque of 1.2N.mm.
  • the indexing element 1 comprises a plurality of pairs (two pairs in the non-limiting case of the figures), each consisting of a first elastic arm 14 and a second elastic arm 16, and each arranged to exert on a component 20 a force substantially diametrically opposed, with respect to the axis D, to the first bearing surface 11.
  • At least one second elastic arm 16 comprises a lug 17 which is arranged to cooperate with a notch 18 which comprises a first elastic arm 14 with which this second elastic arm 16 cooperates, for locking in the indexing position of this first elastic arm 14, in the factory or in an after-sales service; to be implemented by a user, such a variant requires the arrangement of additional means, not shown here, to release the lug 17 from the notch 18.
  • the indexing element 1 comprises at least one locking element 19, which is arranged to lock a second elastic arm 16 resting on a first elastic arm 14 with which this second elastic arm 16 cooperates;
  • this blocking can be a blocking with a slight play, to allow a small radial travel of the first elastic arm 14 and of the second elastic arm 16 in the event of an impact, when the mechanism is incorporated in a watch; again, such a blockage concerns a factory setting or in an after-sales service
  • the indexing element 1 comprises at least one boss 110 diametrically opposed, with respect to the axis D, to the first bearing surface 11, in order to constitute an anti-stopper. shock limiting the relative radial movement, in the event of an impact, between the indexing element 1 and a component 20 assembled together in an indexed position.
  • the indexing element 1 comprises an internal chamber 111, delimited by the bearing surface 11 and each first elastic arm 14, and which is arranged to surround an indexing relief 30 of a component 20, and each first elastic arm 14 is closer to axis D than every second elastic arm 16.
  • the indexing element 1 is arranged to be inserted into an external chamber delimited by an indexing relief 30 of a component 20, and each first elastic arm 14 is further from the axis D than each second elastic arm 16.
  • the invention can be used indifferently with the mobile indexing element 1 and the fixed component 2, or the fixed indexing element 1 and the mobile component 2, or the indexing element 1 and the component 2 both movable, or even the indexing element 1 and component 2 both fixed for a factory setting for example.
  • the indexing element 1 is a mobile arranged to pivot around the axis D and around a component 20 with which it cooperates.
  • the indexing element 1 comprises drive means 120, such as teeth, grooves, notches, holes, projections, pins, pins, belt or chain groove, or the like.
  • the indexing element 1 is designed to be fixed in a fixed angular position on a structure of a movement or of a clockwork mechanism.
  • the indexing element 1 is made of a micro-machinable material, which can be produced by a process of the “LIGA” type (from the German “Röntgenlithographie, Galvanoformung, Abformung”: lithography, galvanization, forming) or similar, in silicon , or silicon oxide, or nickel-phosphorus NiP, or any similar material now in common use in watchmaking and suitable for making thin monobloc components comprising elastic blades.
  • LIGA from the German “Röntgenlithographie, Galvanoformung, Abformung”: lithography, galvanization, forming
  • the first elastic arm 14 and the second elastic arm 16 are substantially parallel to one another.
  • the first elastic arms 14 and second elastic arms 16 are curved, in particular substantially circular and centered on the axis D, for a good distribution of the stresses.
  • the invention lends itself particularly well to the production of components for watches, of small dimensions, for example with an overall diameter of less than 5 mm, and a thickness of a few tenths of a millimeter.
  • the invention also relates to a timepiece assembly 100 comprising at least one such indexing element 10, and at least one such timepiece component 20 comprising an indexing relief 30 defining a plurality of indexing positions.
  • This at least one indexing element 1 and this at least one component 20 are arranged to cooperate with one another in a substantially coaxial manner, around the axis D, for their relative indexing with respect to each other, with the first bearing surface 11 arranged to cooperate in bearing with abutment with a second complementary bearing surface 21 which this at least one component 20 comprises, and the indexing means 13 arranged to cooperate with an indexing relief 30 of such a component 20 for relative indexing between the element index 1 and component 20 concerned.
  • the indexing element 1 comprises an internal chamber 111, delimited by the bearing surface 11 and each first elastic arm 14, arranged to surround an indexing relief 30 of a component 20, and each first elastic arm 14 is closer to the D axis than every second elastic arm 16.
  • the indexing element 1 is arranged to be inserted into an external chamber delimited by an indexing relief 30 of a component 20, and each first elastic arm 14 is further from the axis D than each second elastic arm 16.
  • the watch assembly 100 comprises a single indexing element 10, and a single component 20.
  • component 20 is a mobile.
  • the component 20 is designed to be fixed in a fixed angular position on a structure of a movement or of a clockwork mechanism.
  • the indexing element 10 and the indexing relief 30 of the component 20 are both delimited by the same upper plane and the same lower plane, perpendicular to the axis D. More particularly still, they have the same thickness.
  • the invention also relates to a clockwork mechanism 500 comprising at least one such indexing element 10, and / or such a clockwork assembly 100.
  • the invention also relates to a timepiece 1000, in particular a watch, comprising at least one such timepiece mechanism 500, and / or at least one indexing element 10, and / or a timepiece assembly 100.
  • the invention while ensuring the disengagement of the two indexed elements, makes it possible to gain a level in Z, that is to say to reduce the total thickness.
  • one of the resilient arms provides positioning and indexing, and part of the support torque, and the other spring provides most of the resulting support torque.
  • indexing element 10 and a component 20 which are both toothed wheels
  • the invention lends itself to numerous horological applications: column wheel, date ring, date indicator. time zone, toggle, display disc, day / night indicator, AM / PM indicator, leap year display, moon phase, or other.
  • the invention makes it possible to obtain an appreciable gain in terms of bulk, in particular in thickness, to minimize the risk of breakage of the spring elements, and to ensure better control of the forces.

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

Abstract

Elément d'indexation (10) d'horlogerie coopérant coaxialement avec un composant (20) comportant un relief d'indexage (30) définissant des positions d'indexage, comportant une première surface d'appui (11) coopérant en appui avec le composant (20), des moyens de rappel élastique (12) exerçant une poussée radiale sur ce composant (20) pour le plaquer en appui sur ladite première surface d'appui (11), et des moyens d'indexation (13) coopérant avec ce relief d'indexage (30), ces moyens de rappel élastique (12) comportent au moins un premier bras élastique (14) comportant une première surface d'indexation (15) que comportent lesdits moyens d'indexation (13) et agencé pour exercer un effort de poussée radial sur le composant (20), et, au moins un deuxième bras élastique (16) agencé pour exercer un effort de poussée radial sur ce premier bras élastique (14).Clockwork indexing element (10) cooperating coaxially with a component (20) comprising an indexing relief (30) defining indexing positions, comprising a first bearing surface (11) cooperating in abutment with the component (20), elastic return means (12) exerting a radial thrust on this component (20) to press it against said first bearing surface (11), and indexing means (13) cooperating with this indexing relief (30), these elastic return means (12) comprise at least one first elastic arm (14) comprising a first indexing surface (15) which said indexing means (13) comprise and arranged to exercise a radial thrust force on the component (20), and at least one second elastic arm (16) arranged to exert a radial thrust force on this first elastic arm (14).

Description

Domaine de l'inventionField of the invention

L'invention concerne un élément d'indexation d'horlogerie, agencé pour coopérer de façon sensiblement coaxiale, autour d'un axe autour duquel s'étend ledit élément d'indexation, avec un composant d'horlogerie comportant un relief d'indexage définissant une pluralité de positions d'indexage, ledit élément d'indexation comportant une première surface d'appui agencée pour coopérer en appui de butée avec une deuxième surface d'appui complémentaire que comporte un dit composant, et comportant des moyens de rappel élastique agencés pour exercer un effort de poussée sensiblement radial par rapport audit axe sur un dit composant pour le plaquer en appui sur ladite première surface d'appui, et comportant des moyens d'indexation agencés pour coopérer avec un dit relief d'indexage d'un dit composant pour un indexage relatif entre ledit élément d'indexation et ce dit composant.The invention relates to a timepiece indexing element, arranged to cooperate in a substantially coaxial manner, around an axis around which said indexing element extends, with a timepiece component comprising an indexing relief defining a plurality of indexing positions, said indexing element comprising a first bearing surface arranged to cooperate in abutment bearing with a second complementary bearing surface that a said component comprises, and comprising elastic return means arranged to exerting a thrust force that is substantially radial with respect to said axis on a said component in order to press it against said first bearing surface, and comprising indexing means arranged to cooperate with a said indexing relief of a said component for relative indexing between said indexing element and said component.

L'invention concerne encore un ensemble horloger comportant au moins un tel élément d'indexation, et au moins un tel composant d'horlogerie comportant un relief d'indexage définissant une pluralité de positions d'indexage, ledit au moins un élément d'indexation et ledit au moins un composant étant agencés pour coopérer l'un avec l'autre de façon sensiblement coaxiale, autour dudit axe, pour leur indexage relatif l'un par rapport à l'autre.The invention also relates to a timepiece assembly comprising at least one such indexing element, and at least one such timepiece component comprising an indexing relief defining a plurality of indexing positions, said at least one indexing element. and said at least one component being arranged to cooperate with one another in a substantially coaxial manner, around said axis, for their relative indexing with respect to one another.

L'invention concerne encore un mécanisme d'horlogerie comportant au moins un tel élément d'indexation, et/ou un tel ensemble horloger.The invention also relates to a clockwork mechanism comprising at least one such indexing element, and / or such a clockwork assembly.

L'invention concerne encore une pièce d'horlogerie, notamment une montre, comportant au moins un tel mécanisme d'horlogerie et/ou au moins un tel élément d'indexation, et/ou un tel ensemble horloger.The invention also relates to a timepiece, in particular a watch, comprising at least one such timepiece mechanism and / or at least one such indexing element, and / or such a timepiece assembly.

L'invention concerne encore le domaine des mécanismes d'horlogerie, et en particulier des mécanismes d'affichage, et/ou de réglage, et/ou de sélection.The invention also relates to the field of clockwork mechanisms, and in particular display, and / or adjustment, and / or selection mechanisms.

Arrière-plan de l'inventionBackground of the invention

Dans des mécanismes d'affichage d'horlogerie tels que des affichages de fuseau horaire, souvent les roues fuseau/heures sautantes sont constituées de plusieurs planches/pignons, liées ensemble par une étoile/came contrainte par un élément ressort (cliquet). De tels systèmes ont un encombrement important.In clockwork display mechanisms such as time zone displays, often the time zone / jumping hour wheels consist of several boards / pinions, linked together by a star / cam constrained by a spring element (pawl). Such systems have a large footprint.

Les éléments ressorts de ces systèmes sont souvent poussé à leur maximum, ce qui ne permet pas d'obtenir des valeurs importantes de flèches, pourtant nécessaires pour assurer l'armage et le fonctionnement. De surcroît les variations dimensionnelles lors de la production entraînent des variations de forces significatives au niveau de ces ressorts, les efforts ne sont pas reproductibles.The spring elements of these systems are often pushed to their maximum, which does not make it possible to obtain significant deflection values, which are nevertheless necessary to ensure winding and operation. In addition, dimensional variations during production lead to significant force variations at the level of these springs, and the forces are not reproducible.

Résumé de l'inventionSummary of the invention

L'invention se propose à la fois de fiabiliser les mécanismes de réglage et d'indexage, de réduire leur l'épaisseur, et de garantir une indexation précise et maîtrisée entre deux éléments.The invention proposes both to make the adjustment and indexing mechanisms more reliable, to reduce their thickness, and to guarantee precise and controlled indexing between two elements.

Il s'agit, encore, de limiter les contraintes subies par les éléments élastiques.It is, again, to limit the stresses undergone by the elastic elements.

Et il faut enfin, s'affranchir de la dispersion des valeurs des forces, imputables à la difficulté de respecter, de façon reproductible, les tolérances de production.And finally, it is necessary to overcome the dispersion of the values of the forces, attributable to the difficulty of respecting, in a reproducible manner, the production tolerances.

A cet effet, l'invention concerne un élément d'indexation d'horlogerie, selon la revendication 1.To this end, the invention relates to a timepiece indexing element, according to claim 1.

L'invention concerne encore un ensemble horloger comportant au moins un tel élément d'indexation, et au moins un tel composant d'horlogerie comportant un relief d'indexage définissant une pluralité de positions d'indexage, ledit au moins un élément d'indexation et ledit au moins un composant étant agencés pour coopérer l'un avec l'autre de façon sensiblement coaxiale, pour leur indexage relatif l'un par rapport à l'autre.The invention also relates to a timepiece assembly comprising at least one such indexing element, and at least one such timepiece component comprising an indexing relief defining a plurality of indexing positions, said at least one indexing element. and said at least one component being arranged to cooperate with one another in a substantially coaxial manner, for their relative indexing with respect to one another.

L'invention concerne encore un mécanisme d'horlogerie comportant au moins un tel élément d'indexation, et/ou un tel ensemble horloger.The invention also relates to a clockwork mechanism comprising at least one such indexing element, and / or such a clockwork assembly.

L'invention concerne encore une pièce d'horlogerie, notamment une montre, comportant au moins un tel mécanisme d'horlogerie et/ou au moins un tel élément d'indexation, et/ou un tel ensemble horloger.The invention also relates to a timepiece, in particular a watch, comprising at least one such timepiece mechanism and / or at least one such indexing element, and / or such a timepiece assembly.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • la figure 1 représente, de façon schématisée, et en plat, un ensemble horloger selon l'invention, comportant d'une part un élément d'indexation qui est ici une roue dentée comportant, découpés dans sa planche, deux paires de bras élastiques, et d'autre part un composant d'horlogerie comportant un relief d'indexage définissant une pluralité de positions d'indexage, ce relief d'indexage étant ici constitué par une denture ; cet élément d'indexation et ce composant coopèrent l'un avec l'autre de façon coaxiale, en appui l'un dans l'autre. Dans chaque paire de bras élastiques le bras le plus interne effectue l'indexation en coopérant avec le relief d'indexage, et effectue une première pression sur ce dernier. Dans chaque paire le bras élastique le plus externe, coplanaire au bras interne, appuie sur ce dernier avec un couple de rappel supérieur au sien. Cette figure est représentée dans une position indexée stable ;
  • la figure 2 représente, de façon similaire à la figure 1, le même mécanisme dans une position de transition, dans laquelle les bras élastiques internes sont en appui sur les sommets de dents du relief d'indexage ; les bras élastiques internes et externes sont alors dans leur élongation radiale maximale ;
  • la figure 3 représente, de façon similaire à la figure 1, l'élément d'indexation seul, à l'état libre, dans lequel les bras élastiques internes et externes sont en position de repos, au plus près de l'axe ;
  • la figure 4 représente, de façon similaire à la figure 1, une configuration inverse, où le composant comportant le relief d'indexage entoure l'élément d'indexation, et où les bras élastiques externes coopèrent avec ce dernier, tandis que les bras élastiques internes appuient sur les bras élastiques externes ;
  • la figure 5 représente, de façon similaire à la figure 1, un détail d'une variante où le bras élastique interne comporte un cran avec lequel peut coopérer un bossage du bras élastique externe ;
  • la figure 6 représente, de façon similaire à la figure 1, un détail d'une autre variante où un élément de blocage tel qu'une goupille est inséré en usine après un réglage, pour limiter le débattement du bras élastique interne et du bras élastique externe à un simple jeu d'amortissement de chocs, mais n'autorise pas un changement d'indexage dans extraction préalable de cet élément de blocage ;
  • la figure 7 est un schéma-blocs représentant une pièce d'horlogerie, notamment une montre, comportant un mécanisme d'horlogerie comportant lui-même un tel ensemble avec un tel élément d'indexation, et un tel composant.
Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows, with reference to the appended drawings, where:
  • the figure 1 represents, schematically, and flat, a watch assembly according to the invention, comprising on the one hand an indexing element which is here a toothed wheel comprising, cut from its plate, two pairs of elastic arms, and of on the other hand, a timepiece component comprising an indexing relief defining a plurality of indexing positions, this indexing relief being here constituted by a toothing; this indexing element and this component cooperate with each other in a coaxial manner, resting one inside the other. In each pair of elastic arms, the innermost arm performs indexing by cooperating with the indexing relief, and performs a first pressure on the latter. In each pair, the outermost elastic arm, coplanar with the internal arm, presses on the latter with a return torque greater than its own. This figure is shown in a stable indexed position;
  • the figure 2 represents, similarly to the figure 1 , the same mechanism in a transition position, in which the internal elastic arms are supported on the peaks of teeth of the indexing relief; the internal and external elastic arms are then in their maximum radial elongation;
  • the figure 3 represents, similarly to the figure 1 , the indexing element alone, in the free state, in which the internal and external elastic arms are in the rest position, as close as possible to the axis;
  • the figure 4 represents, similarly to the figure 1 , a reverse configuration, where the component comprising the indexing relief surrounds the indexing element, and where the external elastic arms cooperate with the latter, while the internal elastic arms press on the external elastic arms;
  • the figure 5 represents, similarly to the figure 1 , a detail of a variant where the internal elastic arm comprises a notch with which a boss of the external elastic arm can cooperate;
  • the figure 6 represents, similarly to the figure 1 , a detail of another variant where a locking element such as a pin is inserted at the factory after adjustment, to limit the travel of the internal elastic arm and the external elastic arm to a simple shock-absorbing set, but does not authorize a change of indexing in the prior extraction of this blocking element;
  • the figure 7 is a block diagram showing a timepiece, in particular a watch, comprising a timepiece mechanism itself comprising such an assembly with such an indexing element, and such a component.

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

L'invention concerne un élément d'indexation 10 d'horlogerie, agencé pour coopérer de façon sensiblement coaxiale, autour d'un axe D autour duquel s'étend cet élément d'indexation 10, avec un composant 20 d'horlogerie:
Ce composant 20 comporte un relief d'indexage 30, définissant une pluralité de positions d'indexage. Ce relief d'indexage peut être constitué par une denture tel qu'illustré par les figures, ou par une cannelure, ou par des encoches, ou saillants, ou pions, ou autre.The invention relates to a timepiece indexing element 10, arranged to cooperate in a substantially coaxial manner, around an axis D around which this indexing element 10 extends, with a timepiece component 20:
This component 20 comprises an indexing relief 30, defining a plurality of indexing positions. This indexing relief can be formed by toothing as illustrated by the figures, or by a groove, or by notches, or protrusions, or pins, or the like.

L'élément d'indexation 10 comporte une première surface d'appui 11, qui est agencée pour coopérer en appui de butée avec une deuxième surface d'appui complémentaire 21 que comporte un tel composant 20. Cette zone de contact entre l'élément d'indexation 10 et le composant 20 assure le parfait positionnement de l'un par rapport à l'autre : leur position est à la fois connue et maîtrisée.The indexing element 10 comprises a first bearing surface 11, which is arranged to cooperate in abutment bearing with a second complementary bearing surface 21 which such a component 20 comprises. This zone of contact between the element d 'indexing 10 and component 20 ensures the perfect positioning of one relative to the other: their position is both known and controlled.

L'élément d'indexation 10 comporte des moyens de rappel élastique 12, qui sont agencés pour exercer un effort de poussée sensiblement radial, par rapport à l'axe D, sur un tel composant 20, pour le plaquer en appui sur la première surface d'appui 11.The indexing element 10 comprises elastic return means 12, which are arranged to exert a thrust force that is substantially radial, with respect to the axis D, on such a component 20, in order to press it against the first surface. support 11.

L'élément d'indexation 10 comporte des moyens d'indexation 13, qui sont agencés pour coopérer avec un relief d'indexage 30 d'un composant 20 pour un indexage relatif entre l'élément d'indexation 1 et ce composant 20.The indexing element 10 comprises indexing means 13, which are arranged to cooperate with an indexing relief 30 of a component 20 for relative indexing between the indexing element 1 and this component 20.

Selon l'invention, les moyens de rappel élastique 12 comportent au moins un premier bras élastique 14, comportant une première surface d'indexation 15 que comportent les moyens d'indexation 13. Et ce premier bras élastique 14 est agencé pour exercer un effort de poussée sensiblement radial par rapport à l'axe D sur un tel composant 20. Les moyens de rappel élastique 12 comportent encore au moins un deuxième bras élastique 16, qui est agencé pour exercer un effort de poussée sensiblement radial par rapport à l'axe D sur un au moins un premier bras élastique 14.According to the invention, the elastic return means 12 comprise at least a first elastic arm 14, comprising a first indexing surface 15 which the indexing means 13 comprise. And this first elastic arm 14 is arranged to exert a force of thrust substantially radial with respect to the axis D on such a component 20. The elastic return means 12 also comprise at least one second elastic arm 16, which is arranged to exert a thrust force substantially radial with respect to the axis D on at least one first elastic arm 14.

Plus particulièrement, dans une paire constituée par un premier bras élastique 14 et un deuxième bras élastique 16, le deuxième bras élastique 16 est agencé pour exercer un couple de rappel supérieur au couple de rappel du premier bras élastique 14.More particularly, in a pair formed by a first elastic arm 14 and a second elastic arm 16, the second elastic arm 16 is arranged to exert a return torque greater than the return torque of the first elastic arm 14.

Plus particulièrement, dans une paire constituée par un premier bras élastique 14 et un deuxième bras élastique 16, le deuxième bras élastique 16 est agencé pour, parcourir, dans sa course de flexion, une extension radiale (ou flèche) inférieure à celle du premier bras élastique 14.More particularly, in a pair consisting of a first elastic arm 14 and a second elastic arm 16, the second elastic arm 16 is arranged to travel, in its bending stroke, a radial extension (or arrow) less than that of the first arm elastic 14.

Par exemple, sur le mécanisme illustré sur les figures 1 à 3, dont l'application est l'entraînement de l'heure et d'un indicateur de quantième de montre, le premier bras élastique intérieur 14 a une flèche de 0.26 mm, tandis que celle du deuxième bras élastique 16 est de 0.21 mm. Cet agencement permet d'assurer la tenue de couple, et de garantir ici un couple minimal de 1.2N.mm.For example, on the mechanism shown on figures 1 to 3 , the application of which is to drive the time and a date indicator of the watch, the first inner elastic arm 14 has a deflection of 0.26 mm, while that of the second elastic arm 16 is 0.21 mm. This arrangement makes it possible to ensure torque retention, and here to guarantee a minimum torque of 1.2N.mm.

De façon particulière, et tel qu'illustré par les figures, l'élément d'indexation 1 comporte une pluralité de paires (deux paires dans le cas non limitatif des figures), chacune constituée par un premier bras élastique 14 et un deuxième bras élastique 16, et chacune agencée pour exercer sur un composant 20 un effort sensiblement diamétralement opposé, par rapport à l'axe D, à la première surface d'appui 11.In particular, and as illustrated by the figures, the indexing element 1 comprises a plurality of pairs (two pairs in the non-limiting case of the figures), each consisting of a first elastic arm 14 and a second elastic arm 16, and each arranged to exert on a component 20 a force substantially diametrically opposed, with respect to the axis D, to the first bearing surface 11.

Plus particulièrement, au moins un deuxième bras élastique 16 comporte un ergot 17 qui est agencé pour coopérer avec un cran 18 que comporte un premier bras élastique 14 avec lequel coopère ce deuxième bras élastique 16, pour un verrouillage en position d'indexation de ce premier bras élastique 14, en usine ou dans un service d'après-vente ; pour être mise en oeuvre par un utilisateur, une telle variante nécessite l'agencement de moyens complémentaires, non illustrés ici, pour dégager l'ergot 17 du cran 18.More particularly, at least one second elastic arm 16 comprises a lug 17 which is arranged to cooperate with a notch 18 which comprises a first elastic arm 14 with which this second elastic arm 16 cooperates, for locking in the indexing position of this first elastic arm 14, in the factory or in an after-sales service; to be implemented by a user, such a variant requires the arrangement of additional means, not shown here, to release the lug 17 from the notch 18.

Plus particulièrement, l'élément d'indexation 1 comporte au moins un élément de blocage 19, qui est agencé pour bloquer un deuxième bras élastique 16 en appui sur un premier bras élastique 14 avec lequel coopère ce deuxième bras élastique 16 ; ce blocage peut être un blocage avec un léger jeu, pour autoriser une petite course radiale du premier bras élastique 14 et du deuxième bras élastique 16 en cas de choc, quand le mécanisme est incorporé à une montre ; là encore, un tel blocage concerne un réglage d'usine ou dans un servie d'après-venteMore particularly, the indexing element 1 comprises at least one locking element 19, which is arranged to lock a second elastic arm 16 resting on a first elastic arm 14 with which this second elastic arm 16 cooperates; this blocking can be a blocking with a slight play, to allow a small radial travel of the first elastic arm 14 and of the second elastic arm 16 in the event of an impact, when the mechanism is incorporated in a watch; again, such a blockage concerns a factory setting or in an after-sales service

De façon avantageuse, et tel que visible sur les figures, l'élément d'indexation 1 comporte au moins un bossage 110 diamétralement opposé, par rapport à l'axe D, à la première surface d'appui 11, pour constituer une butée anti-choc limitant le mouvement radial relatif, en cas de choc, entre l'élément d'indexation 1 et un composant 20 assemblés l'un à l'autre dans une position indexée.Advantageously, and as visible in the figures, the indexing element 1 comprises at least one boss 110 diametrically opposed, with respect to the axis D, to the first bearing surface 11, in order to constitute an anti-stopper. shock limiting the relative radial movement, in the event of an impact, between the indexing element 1 and a component 20 assembled together in an indexed position.

Dans une variante telle qu'illustrée par les figures 1 à 3, l'élément d'indexation 1 comporte une chambre interne 111, délimitée par la surface d'appui 11 et chaque premier bras élastique 14, et qui est agencée pour entourer un relief d'indexage 30 d'un composant 20, et chaque premier bras élastique 14 est plus proche de l'axe D que chaque deuxième bras élastique 16.In a variant as illustrated by figures 1 to 3 , the indexing element 1 comprises an internal chamber 111, delimited by the bearing surface 11 and each first elastic arm 14, and which is arranged to surround an indexing relief 30 of a component 20, and each first elastic arm 14 is closer to axis D than every second elastic arm 16.

Dans une autre variante telle qu'illustrée par la figure 4, l'élément d'indexation 1 est agencé pour être inséré dans une chambre externe délimitée par un relief d'indexage 30 d'un composant 20, et chaque premier bras élastique 14 est plus éloigné de l'axe D que chaque deuxième bras élastique 16.In another variant such as illustrated by figure 4 , the indexing element 1 is arranged to be inserted into an external chamber delimited by an indexing relief 30 of a component 20, and each first elastic arm 14 is further from the axis D than each second elastic arm 16.

On comprend que l'invention est utilisable indifféremment avec l'élément d'indexation 1 mobile et le composant 2 fixe, ou l'élément d'indexation 1 fixe et le composant 2 mobile, ou l'élément d'indexation 1 et le composant 2 tous deux mobiles, voire l'élément d'indexation 1 et le composant 2 tous deux fixes pour un réglage d'usine par exemple.It will be understood that the invention can be used indifferently with the mobile indexing element 1 and the fixed component 2, or the fixed indexing element 1 and the mobile component 2, or the indexing element 1 and the component 2 both movable, or even the indexing element 1 and component 2 both fixed for a factory setting for example.

Dans une variante, l'élément d'indexation 1 est un mobile agencé pour pivoter autour de l'axe D et autour d'un composant 20 avec lequel il coopère.In a variant, the indexing element 1 is a mobile arranged to pivot around the axis D and around a component 20 with which it cooperates.

Plus particulièrement, l'élément d'indexation 1 comporte des moyens d'entraînement 120, tels qu'une denture, une cannelure, des encoches, des perçages, des saillants, goupilles, pions, gorge de courroie ou de chaîne, ou autre.More particularly, the indexing element 1 comprises drive means 120, such as teeth, grooves, notches, holes, projections, pins, pins, belt or chain groove, or the like.

Dans une variante, l'élément d'indexation 1 est agencé pour être fixé dans une position angulaire fixe sur une structure d'un mouvement ou d'un mécanisme d'horlogerie.In a variant, the indexing element 1 is designed to be fixed in a fixed angular position on a structure of a movement or of a clockwork mechanism.

Plus particulièrement, l'élément d'indexation 1 est en matériau micro-usinable, réalisable par un procédé de type «LIGA» (de l'allemand « Röntgenlithographie, Galvanoformung, Abformung » : lithographie, galvanisation, formage) ou similaire, en silicium, ou oxyde de silicium, ou en nickel-phosphore NiP, ou tout matériau similaire d'usage désormais courant en horlogerie et se prêtant à la confection de composants monoblocs de faible épaisseur comportant des lames élastiques.More particularly, the indexing element 1 is made of a micro-machinable material, which can be produced by a process of the “LIGA” type (from the German “Röntgenlithographie, Galvanoformung, Abformung”: lithography, galvanization, forming) or similar, in silicon , or silicon oxide, or nickel-phosphorus NiP, or any similar material now in common use in watchmaking and suitable for making thin monobloc components comprising elastic blades.

De préférence, au sein d'une même paire, le premier bras élastique 14 et le deuxième bras élastique 16 sont sensiblement parallèles l'un à l'autre. Dans un agencement particulier, et tel qu'illustré par les figures, les premiers bras élastiques 14 et deuxièmes bras élastiques 16 sont courbes, notamment sensiblement circulaires et centrés sur l'axe D, pour une bonne répartition des contraintes.Preferably, within the same pair, the first elastic arm 14 and the second elastic arm 16 are substantially parallel to one another. In a particular arrangement, and as illustrated by the figures, the first elastic arms 14 and second elastic arms 16 are curved, in particular substantially circular and centered on the axis D, for a good distribution of the stresses.

L'invention se prête particulièrement bien à la réalisation de composants pour montres, de petites dimensions, par exemple de diamètre hors tout inférieur à 5 mm, et d'une épaisseur de quelques dixièmes de millimètre.The invention lends itself particularly well to the production of components for watches, of small dimensions, for example with an overall diameter of less than 5 mm, and a thickness of a few tenths of a millimeter.

L'invention concerne encore un ensemble horloger 100 comportant au moins un tel élément d'indexation 10, et au moins un tel composant 20 d'horlogerie comportant un relief d'indexage 30 définissant une pluralité de positions d'indexage. Cet au moins un élément d'indexation 1 et cet au moins un composant 20 sont agencés pour coopérer l'un avec l'autre de façon sensiblement coaxiale, autour de l'axe D, pour leur indexage relatif l'un par rapport à l'autre, avec la première surface d'appui 11 agencée pour coopérer en appui de butée avec une deuxième surface d'appui complémentaire 21 que comporte cet au moins un composant 20, et les moyens d'indexation 13 agencés pour coopérer avec un relief d'indexage 30 d'un tel composant 20 pour un indexage relatif entre l'élément d'indexation 1 et le composant 20 concernés.The invention also relates to a timepiece assembly 100 comprising at least one such indexing element 10, and at least one such timepiece component 20 comprising an indexing relief 30 defining a plurality of indexing positions. This at least one indexing element 1 and this at least one component 20 are arranged to cooperate with one another in a substantially coaxial manner, around the axis D, for their relative indexing with respect to each other, with the first bearing surface 11 arranged to cooperate in bearing with abutment with a second complementary bearing surface 21 which this at least one component 20 comprises, and the indexing means 13 arranged to cooperate with an indexing relief 30 of such a component 20 for relative indexing between the element index 1 and component 20 concerned.

Dans la variante des figures 1 à 3, l'élément d'indexation 1 comporte une chambre interne 111, délimitée par la surface d'appui 11 et chaque premier bras élastique 14, agencée pour entourer un relief d'indexage 30 d'un composant 20, et chaque premier bras élastique 14 est plus proche de l'axe D que chaque deuxième bras élastique 16.In the variant of figures 1 to 3 , the indexing element 1 comprises an internal chamber 111, delimited by the bearing surface 11 and each first elastic arm 14, arranged to surround an indexing relief 30 of a component 20, and each first elastic arm 14 is closer to the D axis than every second elastic arm 16.

Dans la variante de la figure 4, l'élément d'indexation 1 est agencé pour être inséré dans une chambre externe délimitée par un relief d'indexage 30 d'un composant 20, et chaque premier bras élastique 14 est plus éloigné de l'axe D que chaque deuxième bras élastique 16.In the variant of figure 4 , the indexing element 1 is arranged to be inserted into an external chamber delimited by an indexing relief 30 of a component 20, and each first elastic arm 14 is further from the axis D than each second elastic arm 16.

Plus particulièrement, l'ensemble horloger 100 comporte un élément d'indexation 10 unique, et un composant 20 unique.More particularly, the watch assembly 100 comprises a single indexing element 10, and a single component 20.

Dans une variante, le composant 20 est un mobile.In one variant, component 20 is a mobile.

Dans une autre variante, le composant 20 est agencé pour être fixé dans une position angulaire fixe sur une structure d'un mouvement ou d'un mécanisme d'horlogerie.In another variant, the component 20 is designed to be fixed in a fixed angular position on a structure of a movement or of a clockwork mechanism.

Plus particulièrement, l'élément d'indexation 10 et le relief d'indexage 30 du composant 20 sont tous deux délimités par un même plan supérieur et un même plan inférieur, perpendiculaires à l'axe D. Plus particulièrement encore, ils ont la même épaisseur.More particularly, the indexing element 10 and the indexing relief 30 of the component 20 are both delimited by the same upper plane and the same lower plane, perpendicular to the axis D. More particularly still, they have the same thickness.

L'invention concerne encore un mécanisme d'horlogerie 500 comportant au moins un tel élément d'indexation 10, et/ou un tel ensemble horloger 100.The invention also relates to a clockwork mechanism 500 comprising at least one such indexing element 10, and / or such a clockwork assembly 100.

L'invention concerne encore une pièce d'horlogerie 1000, notamment une montre, comportant au moins un tel mécanisme d'horlogerie 500, et/ou au moins un élément d'indexation 10, et/ou un ensemble horloger 100.The invention also relates to a timepiece 1000, in particular a watch, comprising at least one such timepiece mechanism 500, and / or at least one indexing element 10, and / or a timepiece assembly 100.

Par rapport à l'art antérieur où il était usuel de juxtaposer côte à côte une roue dentée avec des éléments ressorts, l'invention, toute en assurant le débrayage des deux éléments indexés, permet de gagner un niveau en Z, c'est-à-dire de réduire l'épaisseur totale.Compared to the prior art where it was customary to juxtapose a toothed wheel side by side with spring elements, the invention, while ensuring the disengagement of the two indexed elements, makes it possible to gain a level in Z, that is to say to reduce the total thickness.

La mise en parallèle de deux bras élastiques, ou éléments ressorts, permet d'obtenir le couple désiré, de limiter les contraintes subies, et d'avoir une flèche de flexion (extension radiale des bras élastiques) importante. Une grande flèche permet de réduire l'influence des variations de production.The placing in parallel of two elastic arms, or spring elements, makes it possible to obtain the desired torque, to limit the stresses undergone, and to have a significant bending deflection (radial extension of the elastic arms). A large arrow reduces the influence of variations in production.

Au sein de chaque paire, un des bras élastiques assure le positionnement et l'indexation, et une partie du couple d'appui, et l'autre ressort assure la majeure partie du couple d'appui résultant.Within each pair, one of the resilient arms provides positioning and indexing, and part of the support torque, and the other spring provides most of the resulting support torque.

Si l'invention est illustrée ici avec un élément d'indexation 10 et un composant 20 qui sont tous deux des roues dentées, on comprend que l'invention se prête à de nombreuses applications horlogères : roue à colonnes, anneau de quantième, indicateur de fuseau, bascule, disque d'affichage, indicateur jour/nuit, indicateur AM/PM, afficheur d'année bissextile, phase de lune, ou autre.If the invention is illustrated here with an indexing element 10 and a component 20 which are both toothed wheels, it will be understood that the invention lends itself to numerous horological applications: column wheel, date ring, date indicator. time zone, toggle, display disc, day / night indicator, AM / PM indicator, leap year display, moon phase, or other.

Enfin, la bonne orientation des forces d'appui exercées par les éléments ressorts permet d'assurer un positionnement d'un élément par rapport à l'autre, de façon connue, à tout instant.Finally, the correct orientation of the support forces exerted by the spring elements makes it possible to ensure a positioning of one element relative to the other, in a known manner, at all times.

En somme, l'invention permet d'obtenir un gain appréciable sur l'encombrement, notamment en épaisseur, de minimiser le risque de casse des éléments ressorts, et d'assurer une meilleure maîtrise des forces.In short, the invention makes it possible to obtain an appreciable gain in terms of bulk, in particular in thickness, to minimize the risk of breakage of the spring elements, and to ensure better control of the forces.

Claims (22)

Elément d'indexation (10) d'horlogerie, agencé pour coopérer de façon sensiblement coaxiale, autour d'un axe (D) autour duquel s'étend ledit élément d'indexation (10), avec un composant (20) d'horlogerie comportant un relief d'indexage (30) définissant une pluralité de positions d'indexage, ledit élément d'indexation (10) comportant une première surface d'appui (11) agencée pour coopérer en appui de butée avec une deuxième surface d'appui complémentaire (21) que comporte un dit composant (20), et comportant des moyens de rappel élastique (12) agencés pour exercer un effort de poussée sensiblement radial par rapport audit axe (D) sur un dit composant (20) pour le plaquer en appui sur ladite première surface d'appui (11), et comportant des moyens d'indexation (13) agencés pour coopérer avec un dit relief d'indexage (30) d'un dit composant (20) pour un indexage relatif entre ledit élément d'indexation (1) et ce dit composant (20), caractérisé en ce que lesdits moyens de rappel élastique (12) comportent au moins un premier bras élastique (14) comportant une première surface d'indexation (15) que comportent lesdits moyens d'indexation (13) et qui est agencé pour exercer un effort de poussée sensiblement radial par rapport audit axe (D) sur un dit composant (20), et, au moins un deuxième bras élastique (16) agencé pour exercer un effort de poussée sensiblement radial par rapport audit axe (D) sur un dit au moins un premier bras élastique (14).Clockwork indexing element (10), arranged to cooperate in a substantially coaxial manner, around an axis (D) around which said indexing element (10) extends, with a clockwork component (20) comprising an indexing relief (30) defining a plurality of indexing positions, said indexing element (10) comprising a first bearing surface (11) arranged to cooperate in abutment bearing with a second bearing surface complementary (21) that comprises a said component (20), and comprising elastic return means (12) arranged to exert a thrust force substantially radial with respect to said axis (D) on a said component (20) to press it in bearing on said first bearing surface (11), and comprising indexing means (13) arranged to cooperate with a said indexing relief (30) of a said component (20) for relative indexing between said element indexing (1) and said component (20), characterized in that said elastic return means ( 12) comprise at least a first elastic arm (14) comprising a first indexing surface (15) which the said indexing means (13) comprise and which is arranged to exert a thrust force which is substantially radial with respect to said axis (D ) on a said component (20), and, at least one second elastic arm (16) arranged to exert a thrust force substantially radial with respect to said axis (D) on one said at least one first elastic arm (14). Elément d'indexation (10) selon la revendication 1, caractérisé en ce que, dans une paire constituée par un dit premier bras élastique (14) et un dit deuxième bras élastique (16), ledit deuxième bras élastique (16) est agencé pour exercer un couple de rappel supérieur au couple de rappel dudit premier bras élastique (14).Indexing element (10) according to claim 1, characterized in that , in a pair consisting of a said first elastic arm (14) and a said second elastic arm (16), said second elastic arm (16) is arranged to exerting a return torque greater than the return torque of said first elastic arm (14). Elément d'indexation (10) selon la revendication 1 ou 2, caractérisé en ce que, dans une paire constituée par un dit premier bras élastique (14) et un dit deuxième bras élastique (16), ledit premier bras élastique (14) est agencé pour, parcourir, dans sa course de flexion, une extension radiale supérieure à celle dudit deuxième bras élastique (16).Indexing element (10) according to claim 1 or 2, characterized in that , in a pair consisting of a said first elastic arm (14) and a said second elastic arm (16), said first elastic arm (14) is arranged to travel, in its flexion stroke, a radial extension greater than that of said second elastic arm (16). Elément d'indexation (10) selon l'une des revendications 1 à 3, caractérisé en ce que ledit élément d'indexation (1) comporte une pluralité de paires, chacune constituée par un dit premier bras élastique (14) et un dit deuxième bras élastique (16), et chacune agencée pour exercer sur un dit composant (20) un effort sensiblement diamétralement opposé, par rapport audit axe (D), à ladite première surface d'appui (11).Indexing element (10) according to one of claims 1 to 3, characterized in that said indexing element (1) comprises a plurality of pairs, each consisting of a said first elastic arm (14) and a said second elastic arm (16), and each arranged to exert on said component (20) a force substantially diametrically opposed, with respect to said axis (D), to said first bearing surface (11). Elément d'indexation (10) selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins un dit deuxième bras élastique (16) comporte un ergot (17) agencé pour coopérer avec un cran (18) que comporte un dit premier bras élastique (14) avec lequel coopère ce dit deuxième bras élastique (16), pour un verrouillage en position d'indexation de ce dit premier bras élastique (14).Indexing element (10) according to one of claims 1 to 4, characterized in that at least one said second elastic arm (16) comprises a lug (17) arranged to cooperate with a notch (18) which a said first elastic arm (14) with which this said second elastic arm (16) cooperates, for locking in the indexing position of this said first elastic arm (14). Elément d'indexation (10) selon l'une des revendications 1 à 5, caractérisé en ce que ledit élément d'indexation (1) comporte au moins un élément de blocage (19) agencé pour bloquer un dit deuxième bras élastique (16) en appui sur un dit premier bras élastique (14) avec lequel coopère ce dit deuxième bras élastique (16).Indexing element (10) according to one of claims 1 to 5, characterized in that said indexing element (1) comprises at least one locking element (19) arranged to lock a said second elastic arm (16) resting on a said first elastic arm (14) with which this said second elastic arm (16) cooperates. Elément d'indexation (10) selon l'une des revendications 1 à 6, caractérisé en ce que ledit élément d'indexation (1) comporte au moins un bossage (110) diamétralement opposé, par rapport audit axe (D), à ladite première surface d'appui (11), pour constituer une butée anti-choc limitant le mouvement radial relatif, en cas de choc, entre ledit élément d'indexation (1) et un dit composant (20) assemblés l'un à l'autre dans une position indexée.Indexing element (10) according to one of claims 1 to 6, characterized in that said indexing element (1) comprises at least one boss (110) diametrically opposed, with respect to said axis (D), to said first bearing surface (11), to constitute an anti-shock stop limiting the relative radial movement, in the event of impact, between said indexing element (1) and a said component (20) assembled together other in an indexed position. Elément d'indexation (10) selon l'une des revendications 1 à 7, caractérisé en ce que ledit élément d'indexation (1) comporte une chambre interne (111), délimitée par ladite surface d'appui (11) et chaque dit premier bras élastique (14), agencée pour entourer un dit relief d'indexage (30) d'un dit composant (20), et en ce que chaque dit premier bras élastique (14) est plus proche dudit axe (D) que chaque dit deuxième bras élastique (16).Indexing element (10) according to one of claims 1 to 7, characterized in that said indexing element (1) comprises an internal chamber (111), delimited by said bearing surface (11) and each said first elastic arm (14), arranged to surround a said indexing relief (30) of a said component (20), and in that each said first elastic arm (14) is closer to said axis (D) than each said second elastic arm (16). Elément d'indexation (10) selon l'une des revendications 1 à 7, caractérisé en ce que ledit élément d'indexation (1) est agencé pour être inséré dans une chambre externe délimitée par un dit relief d'indexage (30) d'un dit composant (20), et en ce que chaque dit premier bras élastique (14) est plus éloigné dudit axe (D) que chaque dit deuxième bras élastique (16).Indexing element (10) according to one of claims 1 to 7, characterized in that said indexing element (1) is arranged to be inserted into an external chamber delimited by a said indexing relief (30) d a said component (20), and in that each said first elastic arm (14) is further from said axis (D) than each said second elastic arm (16). Elément d'indexation (10) selon l'une des revendications 1 à 9, caractérisé en ce que ledit élément d'indexation (1) est un mobile agencé pour pivoter autour dudit axe (D) et autour d'un dit composant (20) avec lequel il coopère.Indexing element (10) according to one of claims 1 to 9, characterized in that said indexing element (1) is a mobile device arranged to pivot around said axis (D) and around said component (20 ) with which it cooperates. Elément d'indexation (10) selon la revendication 10, caractérisé en ce que ledit élément d'indexation (1) comporte des moyens d'entraînement (120).Indexing element (10) according to Claim 10, characterized in that said indexing element (1) comprises drive means (120). Elément d'indexation (10) selon l'une des revendications 1 à 9, caractérisé en ce que ledit élément d'indexation (1) est agencé pour être fixé dans une position angulaire fixe sur une structure d'un mouvement ou d'un mécanisme d'horlogerie.Indexing element (10) according to one of claims 1 to 9, characterized in that said indexing element (1) is arranged to be fixed in a fixed angular position on a structure of a movement or of a clockwork mechanism. Elément d'indexation (10) selon l'une des revendications 1 à 12, caractérisé en ce que ledit élément d'indexation (1) est en nickel-phosphore NiP.Indexing element (10) according to one of claims 1 to 12, characterized in that said indexing element (1) is made of nickel-phosphorus NiP. Ensemble horloger (100) comportant au moins un élément d'indexation (10) selon l'une des revendications 1 à 13, et au moins un composant (20) d'horlogerie comportant un relief d'indexage (30) définissant une pluralité de positions d'indexage, ledit au moins un élément d'indexation (1) et ledit au moins un composant (20) étant agencés pour coopérer l'un avec l'autre de façon sensiblement coaxiale, autour dudit axe (D), pour leur indexage relatif l'un par rapport à l'autre, avec ladite première surface d'appui (11) agencée pour coopérer en appui de butée avec une deuxième surface d'appui complémentaire (21) que comporte ledit au moins un composant (20), et lesdits moyens d'indexation (13) agencés pour coopérer avec un dit relief d'indexage (30) d'un dit composant (20) pour un indexage relatif entre ledit élément d'indexation (1) et ledit composant (20).Watch assembly (100) comprising at least one indexing element (10) according to one of claims 1 to 13, and at least one timepiece component (20) comprising an indexing relief (30) defining a plurality of indexing positions, said at least one indexing element (1) and said at least one component (20) being arranged to cooperate with each other in a substantially coaxial manner, around said axis (D), for their relative indexing with respect to each other, with said first bearing surface (11) arranged to cooperate in abutment bearing with a second complementary bearing surface (21) which said at least one component (20) comprises , and said indexing means (13) arranged to cooperate with a said indexing relief (30) of a said component (20) for relative indexing between said indexing element (1) and said component (20) . Ensemble horloger (100) selon la revendication 14, caractérisé en ce que ledit élément d'indexation (1) comporte une chambre interne (111), délimitée par ladite surface d'appui (11) et chaque dit premier bras élastique (14), agencée pour entourer un dit relief d'indexage (30) d'un dit composant (20), et en ce que chaque dit premier bras élastique (14) est plus proche dudit axe (D) que chaque dit deuxième bras élastique (16).Watch assembly (100) according to claim 14, characterized in that said indexing element (1) comprises an internal chamber (111), delimited by said bearing surface (11) and each said first elastic arm (14), arranged to surround a said indexing relief (30) of a said component (20), and in that each said first elastic arm (14) is closer to said axis (D) than each said second elastic arm (16) . Ensemble horloger (100) selon la revendication 14, caractérisé en ce que ledit élément d'indexation (1) est agencé pour être inséré dans une chambre externe délimitée par un dit relief d'indexage (30) d'un dit composant (20), et en ce que chaque dit premier bras élastique (14) est plus éloigné dudit axe (D) que chaque dit deuxième bras élastique (16).Watch assembly (100) according to claim 14, characterized in that said indexing element (1) is arranged to be inserted into an external chamber delimited by a said indexing relief (30) of a said component (20) , and in that each said first elastic arm (14) is further from said axis (D) than each said second elastic arm (16). Ensemble horloger (100) selon l'une des revendications 14 à 16, caractérisé en ce que ledit ensemble horloger (100) comporte un dit élément d'indexation (10) unique, et un dit composant (20) unique.Watch assembly (100) according to one of claims 14 to 16, characterized in that said watch assembly (100) comprises a single said indexing element (10), and a single said component (20). Ensemble horloger (100) selon l'une des revendications 14 à 17, caractérisé en ce que ledit composant (20) est un mobile.Watch assembly (100) according to one of claims 14 to 17, characterized in that said component (20) is a mobile. Ensemble horloger (100) selon l'une des revendications 14 à 17, caractérisé en ce que ledit composant (20) est agencé pour être fixé dans une position angulaire fixe sur une structure d'un mouvement ou d'un mécanisme d'horlogerie.Watch assembly (100) according to one of claims 14 to 17, characterized in that said component (20) is arranged to be fixed in a fixed angular position on a structure of a movement or of a watch mechanism. Ensemble horloger (100) selon l'une des revendications 14 à 19, caractérisé en ce que ledit élément d'indexation (10) et ledit relief d'indexage (30) du composant (20) sont tous deux délimités par un même plan supérieur et un même plan inférieur, perpendiculaires audit axe (D).Watch assembly (100) according to one of claims 14 to 19, characterized in that said indexing element (10) and said indexing relief (30) of the component (20) are both delimited by the same upper plane and the same lower plane, perpendicular to said axis (D). Mécanisme d'horlogerie (500) comportant au moins un élément d'indexation (10) selon l'une des revendications 1 à 13, et/ou un ensemble horloger (100) selon l'une des revendications 14 à 18.Clockwork mechanism (500) comprising at least one indexing element (10) according to one of claims 1 to 13, and / or a clockwork assembly (100) according to one of claims 14 to 18. Pièce d'horlogerie (1000) comportant au moins un mécanisme d'horlogerie (500 selon la revendication 20 et/ou au moins un élément d'indexation (10) selon l'une des revendications 1 à 13, et/ou un ensemble horloger (100) selon l'une des revendications 14 à 18.Timepiece (1000) comprising at least one timepiece mechanism (500 according to claim 20 and / or at least one indexing element (10) according to one of claims 1 to 13, and / or a watch assembly (100) according to one of claims 14 to 18.
EP19190678.3A 2019-08-08 2019-08-08 Timepiece indexing element Active EP3772673B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19190678.3A EP3772673B1 (en) 2019-08-08 2019-08-08 Timepiece indexing element
US16/896,485 US11774911B2 (en) 2019-08-08 2020-06-09 Timepiece indexing element
JP2020109323A JP7014861B2 (en) 2019-08-08 2020-06-25 Timekeeper index element
CN202010782462.9A CN112346325B (en) 2019-08-08 2020-08-06 Timepiece indexing element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19190678.3A EP3772673B1 (en) 2019-08-08 2019-08-08 Timepiece indexing element

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EP3772673A1 true EP3772673A1 (en) 2021-02-10
EP3772673B1 EP3772673B1 (en) 2022-04-06

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EP (1) EP3772673B1 (en)
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Also Published As

Publication number Publication date
JP7014861B2 (en) 2022-02-01
CN112346325A (en) 2021-02-09
EP3772673B1 (en) 2022-04-06
US11774911B2 (en) 2023-10-03
US20210041836A1 (en) 2021-02-11
JP2021025998A (en) 2021-02-22
CN112346325B (en) 2022-02-25

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