EP2177959A1 - Mechanism for driving hands - Google Patents

Mechanism for driving hands Download PDF

Info

Publication number
EP2177959A1
EP2177959A1 EP08166906A EP08166906A EP2177959A1 EP 2177959 A1 EP2177959 A1 EP 2177959A1 EP 08166906 A EP08166906 A EP 08166906A EP 08166906 A EP08166906 A EP 08166906A EP 2177959 A1 EP2177959 A1 EP 2177959A1
Authority
EP
European Patent Office
Prior art keywords
satellite
axis
gear
planet carrier
rotation
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
EP08166906A
Other languages
German (de)
French (fr)
Other versions
EP2177959B1 (en
Inventor
Fabrice Deschanel
Stéphane Maturel
Sylvain Cornibé
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.)
Audemars Piguet Renaud et Papi SA
Original Assignee
Audemars Piguet Renaud et Papi SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audemars Piguet Renaud et Papi SA filed Critical Audemars Piguet Renaud et Papi SA
Priority to EP20080166906 priority Critical patent/EP2177959B1/en
Publication of EP2177959A1 publication Critical patent/EP2177959A1/en
Application granted granted Critical
Publication of EP2177959B1 publication Critical patent/EP2177959B1/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • 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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale

Definitions

  • the invention relates to a needle display mechanism, and in particular to a timepiece, or other display device, having a non-planar dial.
  • a timepiece conventionally comprises a driving member, a regulating member, and a gear mechanism, which serves to reduce the speed of movement of the regulating member and to transmit this reduced motor movement to a display member, such as a needle combined with a dial.
  • a conventional gear mechanism comprises a plurality of gear wheels with parallel axes.
  • the hands In a classic timepiece, the hands (hours, minutes, seconds, etc.) are driven in planes that are substantially parallel to one another, and each needle describes a circle in a plane parallel to that of the dial of the piece. that is, the conventional needle path is essentially two-dimensional. It is known to form the dial and the needles with a certain curvature to produce a more three-dimensional effect, but the trajectories of these curved needles remain essentially circular and two-dimensional.
  • One result that the present invention aims to achieve is a three-dimensional needle drive mechanism that allows a less complex and compact construction, and a smoother movement of the needles, without introducing additional friction.
  • the subject of the invention is a device according to claim 1, as well as a timepiece according to claim 15.
  • the preferred embodiments are described in the dependent claims 2 to 14.
  • the terms “gear”, “tooth”, “toothed” and “toothing” are understood to mean not only a toothed gear, but also any kind of known drive means (friction drive, for example). example) usable between drive elements whose axes of rotation are not parallel.
  • the term “needle” does not only include the pointed and narrow shape of a traditional display needle, but also any kind of shape that the skilled person knows to indicate the time by its position relative to the mechanism of his training and / or a dial.
  • the needle (3) is integral with a satellite wheel (2) which rotates around a ring gear (1), and the axis of rotation (11) of the satellite wheel (2) is inclined at an angle ( ⁇ ) relative to the axis of rotation (10) of the planet carrier (4) on which the satellite wheel (2) is mounted.
  • the satellite wheel (2) of the figure 1 turns around the crown (1) and outside the crown (1).
  • the satellite wheel (2) of the figure 2 turns around the corona (1), but inside the crown (1).
  • the particular trajectory (5) is determined on the one hand by the value of the angle ( ⁇ ) between the axis (11) of rotation of the satellite wheel (2) and the axis (10) of rotation of the carrier.
  • satellite (4) and secondly by the radius of curvature of the toothing of the satellite wheel (2) and the radius of curvature of the toothing of the crown (1).
  • the toothing of the satellite wheel (2) and that of the crown (1) have a circular curvature (that is to say a constant radius of curvature), but they can also have an elliptical curvature, or of any shape , as the toothing of the satellite wheel (2) remains substantially in engagement with that of the crown (1).
  • the terms "satellite wheel” and “crown” also include elements of any shape that allow the satellite wheel (2) and the crown (1) to mesh together. If the toothed sector of the crown (1) has a constant radius of curvature, the axis (10) of rotation of the planet carrier (4) can be static relative to the crown (1), which simplifies the construction of the mechanism .
  • a ring (1) non-circular (elliptical, for example, or shaped “potato”), having a set of teeth with a varying radius of curvature allows a trajectory (5) much more complex, but also requires an axis of rotation (11) of the satellite wheel (2) which is movable relative to the toothing of the crown (1).
  • Such relative movement can be achieved by providing the planet carrier with means which allow the displacement of the axis of rotation (10) of the planet wheel (2) in a plane substantially perpendicular to the axis of rotation (10) of the satellite wheel (2) and / or a plane which contains the toothing of the crown (1).
  • each display pointer (3) is mounted integral with a satellite wheel (2) at an angle ( ⁇ ) of the axis of the planet carrier on which it is mounted.
  • FIG. 10 shows how a device according to the invention can be made in the context of a timepiece, such as a watch, having two needles both driven in a retrograde manner.
  • a timepiece such as a watch
  • two mechanisms driven by the same motor and gear are arranged on a common frame (8), each mechanism having its own retrograde escapement and its own needle drive gear.
  • the two mechanisms share a single crown (1), which saves space.
  • each tooth (20) of the satellite wheel is formed with an elastic portion (21), to eliminate any set of pinion. It is also possible to construct the satellite wheel (2) such that each second, each third, etc., tooth is a catch-up tooth.
  • the use such elastic teeth in the context of the invention has an additional advantage: the geometry of the inclined toothings of the crown and the satellite wheel is relatively complicated to manufacture in a very precise manner, and the use of the elastic teeth can compensate the game due to any imprecision of manufacture.
  • the figure 13 shows in side view section XII-XII of the satellite wheel (2) of the figure 12 .
  • the angle ( ⁇ ) of the toothing relating to the axis of rotation (11) of the satellite wheel (2) is here denoted by ⁇ , but is not shown in the figures.
  • the angles ⁇ and ⁇ , as well as the geometry of the teeth, are chosen in order to achieve an effective gearing between the satellite wheel (2) and the crown (1) at the angle ⁇ .
  • These angles of inclination of the teeth of the crown and the satellite wheel are also visible on the figure 4 .
  • the angles shown are for example only, and can be chosen from any combination of angles ( ⁇ , ⁇ , ⁇ ) allowing the realization of the desired trajectory (5).

Landscapes

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

Abstract

The device has a gear mechanism including a planetary gear (2) engaged with a toothed curved sector of a crown (1), where the planetary gear is supported in a rotatable manner by a planetary gear carrier (4). A planetary gear axis (11) is arranged at an inclination angle (alpha) of the planetary gear with respect to a rotational planetary gear carrier axis (10). The planetary gear drives and rotates a display hand (3) around a rotation hand axis (12) that is parallel to the planetary gear axis. Backlash-compensating teeth of the planetary gear are formed with an elastic part.

Description

L'invention se rapporte à un mécanisme d'affichage à aiguilles, et en particulier à une pièce d'horlogerie, ou autre dispositif d'affichage, ayant un cadran non-planaire.The invention relates to a needle display mechanism, and in particular to a timepiece, or other display device, having a non-planar dial.

Une pièce d'horlogerie comprend classiquement un organe moteur, un organe régulateur, et un mécanisme d'engrenage, qui sert à réduire la vitesse du mouvement de l'organe régulateur et à transmettre ce mouvement moteur réduit à un organe d'affichage, telle une aiguille combinée à un cadran. Un mécanisme d'engrenage classique comprend plusieurs roues dentées aux axes parallèles.A timepiece conventionally comprises a driving member, a regulating member, and a gear mechanism, which serves to reduce the speed of movement of the regulating member and to transmit this reduced motor movement to a display member, such as a needle combined with a dial. A conventional gear mechanism comprises a plurality of gear wheels with parallel axes.

Dans une pièce d'horlogerie classique, les aiguilles (heures, minutes, secondes etc) sont entrainées dans des plans sensiblement parallèles l'un à l'autre, et chaque aiguille décrit un cercle dans un plan parallèle à celui du cadran de la pièce, c'est-à-dire que la trajectoire classique des aiguilles est essentiellement en deux dimensions. Il est connu de former le cadran et les aiguilles avec une certaine courbure afin de produire un effet plus tridimensionnel, mais les trajectoires de ces aiguilles courbées restent essentiellement circulaires et bidimensionnelles.In a classic timepiece, the hands (hours, minutes, seconds, etc.) are driven in planes that are substantially parallel to one another, and each needle describes a circle in a plane parallel to that of the dial of the piece. that is, the conventional needle path is essentially two-dimensional. It is known to form the dial and the needles with a certain curvature to produce a more three-dimensional effect, but the trajectories of these curved needles remain essentially circular and two-dimensional.

Pour atteindre une trajectoire trois-dimensionnelle des aiguilles, on a proposé ( WO02/101473A1 , Wolf et Sporrer) une horloge avec un mouvement classique, un cadran à surface trois-dimensionnelle et des aiguilles qui pivotent, telles qu'elles suivent la surface du cadran pendant leur rotation. Dans ce système, le mouvement dans la troisième dimension, c'est-à-dire la direction parallèle à l'axe de rotation des aiguilles, est réalisé, d'une part, par un axe de pivotage pour chaque aiguille et, d'autre part, par un mécanisme de lames entre le mouvement classique et les aiguilles. Ce système de lames et de pivotage est complexe à manufacturer, est encombrant, peut introduire un jeu indésirable dans les axes de pivotage et engendre inévitablement une friction supplémentaire qui peut commencer à empêcher le mouvement des aiguilles.To achieve a three-dimensional trajectory of the needles, it has been proposed ( WO02 / 101473A1 , Wolf and Sporrer) a clock with a classic movement, a three-dimensional surface dial and rotating hands, as they follow the surface of the dial during their rotation. In this system, the movement in the third dimension, that is to say the direction parallel to the axis of rotation of the needles, is formed, on the one hand, by a pivot axis for each needle and, d ' on the other hand, by a mechanism of blades between the classical movement and the needles. This blade and swivel system is complex to manufacture, is bulky, can introduce unwanted play in the pivot axes, and inevitably generates additional friction that can begin to prevent needle movement.

Un résultat que la présente invention vise à obtenir est un mécanisme d'entrainement des aiguilles en trois dimensions qui permet une construction moins complexe et plus compacte, et un mouvement plus lisse des aiguilles, sans introduire de la friction supplémentaire.One result that the present invention aims to achieve is a three-dimensional needle drive mechanism that allows a less complex and compact construction, and a smoother movement of the needles, without introducing additional friction.

A cet effet, l'invention a pour objet un dispositif selon la revendication 1, ainsi une pièce d'horlogerie selon la revendication 15. Les réalisations préférées sont décrites dans les revendications dépendantes 2 à 14.For this purpose, the subject of the invention is a device according to claim 1, as well as a timepiece according to claim 15. The preferred embodiments are described in the dependent claims 2 to 14.

L'invention sera bien comprise à la lecture de la description ci-après faite à titre d'exemple non limitatif, en regardant des dessins ci-annexés qui représentent schématiquement et en vue de projection :

  • figure 1, un exemple d'une trajectoire tridimensionnelle suivie par une aiguille solidaire d'une roue satellite tournant à l'extérieur d'une couronne,
  • figure 2, un exemple d'une trajectoire tridimensionnelle suivie par une aiguille solidaire d'une roue satellite tournant à l'intérieur d'une couronne,
  • figure 3, une réalisation de l'invention, avec deux mécanismes et deux aiguilles,
  • figures 4 et 5, différentes vues de la réalisation de la figure 3,
  • figures 6 et 7, une réalisation de l'invention selon la figure 3, mais avec une seule aiguille et un mécanisme,
  • figures 8 et 9, différentes vues de la réalisation de la figure 3,
  • figure 10, une réalisation comme celle de la figure 3, dans le contexte d'une pièce d'horlogerie,
  • figure 11, une vue agrandie de la prise entre la roue satellite et la couronne de la figure 10,
  • figure 12, une vue du plan de la roue satellite, montrant la forme des dents à rattrapage de jeu, et
  • figure 13, une vue section, montrant l'inclinaison de la denture de la roue satellite, selon une mode de réalisation de l'invention.
The invention will be better understood on reading the following description given by way of nonlimiting example, by looking at the attached drawings which show schematically and in view of projection:
  • figure 1 , an example of a three-dimensional trajectory followed by a needle integral with a satellite wheel rotating outside a crown,
  • figure 2 , an example of a three-dimensional trajectory followed by a needle integral with a satellite wheel rotating inside a crown,
  • figure 3 , an embodiment of the invention, with two mechanisms and two needles,
  • figures 4 and 5 , different views of the realization of the figure 3 ,
  • Figures 6 and 7 , an embodiment of the invention according to the figure 3 but with a single needle and a mechanism,
  • figures 8 and 9 , different views of the realization of the figure 3 ,
  • figure 10 , an achievement like that of the figure 3 , in the context of a timepiece,
  • figure 11 , an enlarged view of the hold between the satellite wheel and the crown of the figure 10 ,
  • figure 12 , a view of the plane of the satellite wheel, showing the shape of the teeth catching play, and
  • figure 13 , a sectional view, showing the inclination of the toothing of the satellite wheel, according to one embodiment of the invention.

Les mêmes numéros de référence indiquent les éléments correspondants dans les différentes figures.The same reference numbers indicate the corresponding elements in the different figures.

Dans la présente demande, on comprend par les termes « engrenage », « dent », « denté » et « denture » pas seulement un engrenage à dents, mais aussi toute sorte de moyens d'entrainement connus (l'entrainement par friction, par exemple) utilisable entre des éléments d'entrainement dont les axes de rotation ne sont pas parallèles. De même, le terme «aiguille » ne comprend pas seulement la forme pointue et étroite d'une aiguille d'affichage traditionnelle, mais aussi toute sorte de forme que l'homme du métier connaît pour indiquer le temps par sa position relative au mécanisme de son entrainement et/ou à un cadran.In the present application, the terms "gear", "tooth", "toothed" and "toothing" are understood to mean not only a toothed gear, but also any kind of known drive means (friction drive, for example). example) usable between drive elements whose axes of rotation are not parallel. Similarly, the term "needle" does not only include the pointed and narrow shape of a traditional display needle, but also any kind of shape that the skilled person knows to indicate the time by its position relative to the mechanism of his training and / or a dial.

En se reportant aux figures 1 et 2, on voit deux exemples des trajectoires (5) qu'il est possible de réaliser avec un dispositif d'entrainement selon la présente invention. Dans les deux cas représentés, l'aiguille (3) est solidaire d'une roue satellite (2) qui tourne autour d'une couronne (1), et l'axe de rotation (11) de la roue satellite (2) est incliné d'un angle (α) relatif à l'axe de rotation (10) du porte-satellite (4) sur lequel la roue satellite (2) est montée. La roue satellite (2) de la figure 1 tourne autour de la couronne (1) et à l'extérieur de la couronne (1). Par contre, la roue satellite (2) de la figure 2 tourne autour de la coronne (1), mais à l'intérieur de la couronne (1).Referring to Figures 1 and 2 two examples of the trajectories (5) that can be realized with a training device according to the present invention are shown. In both cases shown, the needle (3) is integral with a satellite wheel (2) which rotates around a ring gear (1), and the axis of rotation (11) of the satellite wheel (2) is inclined at an angle (α) relative to the axis of rotation (10) of the planet carrier (4) on which the satellite wheel (2) is mounted. The satellite wheel (2) of the figure 1 turns around the crown (1) and outside the crown (1). On the other hand, the satellite wheel (2) of the figure 2 turns around the corona (1), but inside the crown (1).

La trajectoire (5) particulière est déterminée d'une part par la valeur de l'angle (α) entre l'axe (11) de rotation de la roue satellite (2) et l'axe (10) de rotation du porte-satellite (4), et d'autre part par le rayon de courbure de la denture de la roue satellite (2) et le rayon de courbure de la denture de la couronne (1).The particular trajectory (5) is determined on the one hand by the value of the angle (α) between the axis (11) of rotation of the satellite wheel (2) and the axis (10) of rotation of the carrier. satellite (4), and secondly by the radius of curvature of the toothing of the satellite wheel (2) and the radius of curvature of the toothing of the crown (1).

Dans les exemples des figures 1 et 2, la denture de la roue satellite (2) et celle de la couronne (1) ont une courbure circulaire (c'est-à-dire un rayon de courbure constant), mais elles peuvent également avoir une courbure elliptique, or de quelconque forme, tant que la denture de la roue satellite (2) reste essentiellement en prise avec celle de la couronne (1). Dans le contexte de cette demande de brevet, les termes « roue satellite » et « couronne » comprennent aussi les éléments de quelconques formes qui permettent à la roue satellite (2) et à la couronne (1) d'engrener ensemble. Si le secteur denté de la couronne (1) a un rayon de courbure constant, l'axe (10) de rotation du porte-satellite (4) peut être statique relatif à la couronne (1), ce que simplifie la construction du mécanisme. Par contre, une couronne (1) non-circulaire (elliptique, par exemple, ou de forme « patate » ), ayant une denture à rayon de courbure variant, permet une trajectoire (5) beaucoup plus complexe, mais nécessite aussi un axe de rotation (11) de la roue satellite (2) qui est mobile relatif à la denture de la couronne (1). Un tel movement relatif peut être réalisé en munissant le porte-satellite des moyens qui permettent le déplacement de l'axe de rotation (10) de la roue satellite (2) dans un plan sensiblement perpendiculaire à l'axe de rotation (10) de la roue satellite (2) et/ou à un plan qui contient la denture de la couronne (1).In the examples of Figures 1 and 2 , the toothing of the satellite wheel (2) and that of the crown (1) have a circular curvature (that is to say a constant radius of curvature), but they can also have an elliptical curvature, or of any shape , as the toothing of the satellite wheel (2) remains substantially in engagement with that of the crown (1). In the context of this patent application, the terms "satellite wheel" and "crown" also include elements of any shape that allow the satellite wheel (2) and the crown (1) to mesh together. If the toothed sector of the crown (1) has a constant radius of curvature, the axis (10) of rotation of the planet carrier (4) can be static relative to the crown (1), which simplifies the construction of the mechanism . By cons, a ring (1) non-circular (elliptical, for example, or shaped "potato"), having a set of teeth with a varying radius of curvature, allows a trajectory (5) much more complex, but also requires an axis of rotation (11) of the satellite wheel (2) which is movable relative to the toothing of the crown (1). Such relative movement can be achieved by providing the planet carrier with means which allow the displacement of the axis of rotation (10) of the planet wheel (2) in a plane substantially perpendicular to the axis of rotation (10) of the satellite wheel (2) and / or a plane which contains the toothing of the crown (1).

Bien que les mécanismes des figures 1 et 2 représentent des trajectoires (5) complexes et relativement longues, il est clair que pour la réalisation d'un affichage tel que, par exemple, une montre à affichage rétrograde ou d'un indicateur de vitesse d'une voiture, la rotation de l'aiguille pourrait être limitée à une portion seulement de la trajectoire, c'est-à-dire à une portion d'une révolution de la roue satellite relative au porte-satellite. De même, bien que la roue satellite (2) et la couronne (1) soient représentées dans les figures 1 et 2 comme capable d'une ou plusieurs révolutions, c'est-à-dire que chacune est munie d'un secteur denté qui étend sur sa circonférence complète, une trajectoire à révolution partielle peut être également réalisée par une roue satellite (2) et/ou une couronne (1) ayant un secteur denté sur une partie seulement de sa circonférence.Although the mechanisms of Figures 1 and 2 represent (5) complex and relatively long trajectories, it is clear that for the realization of a display such as, for example, a retrograde display or a speedometer of a car, the rotation of the needle could be limited to only a portion of the trajectory, that is to say a portion of a revolution of the satellite wheel relative to the carrier. Similarly, although the satellite wheel (2) and the crown (1) are represented in the Figures 1 and 2 as capable of one or more revolutions, that is to say that each is provided with a toothed sector which extends over its entire circumference, a partial-revolution trajectory may also be achieved by a satellite wheel (2) and / or a crown (1) having a toothed sector on only part of its circumference.

Les figures 3 à 10 montrent une réalisation de l'invention. Il sera compris que le dispositif de l'invention peut s'entendre de une à deux, trois, ou plusieurs aiguilles, chacune avec son mécanisme d'entrainement. Dans les figures 3,4,5,8,9 et 10, une disposition est présentée avec deux mécanismes et deux aiguilles (3), pendant que dans les figures 6 et 7, seulement une aiguille et un mécanisme sont présentés. Dans cette réalisation de l'invention, chaque aiguille d'affichage (3) est montée solidaire d'une roue satellite (2), à un angle (α) de l'axe du porte-satellite sur lequel elle est montée.The Figures 3 to 10 show an embodiment of the invention. It will be understood that the device of the invention can be understood as one to two, three or more needles, each with its drive mechanism. In the figures 3,4 , 5 , 8 , 9 and 10 , a layout is presented with two mechanisms and two needles (3), while in the Figures 6 and 7 only a needle and a mechanism are shown. In this embodiment of the invention, each display pointer (3) is mounted integral with a satellite wheel (2) at an angle (α) of the axis of the planet carrier on which it is mounted.

Autres éléments de l'engrenage et de l'organe moteur ne sont pas représentés dans les figures 3 à 9, mais la figure 10 montre comment un dispositif selon l'invention peut être réalisé dans le contexte d'une pièce d'horlogerie, telle qu'une montre, ayant deux aiguilles entrainées toutes les deux d'une façon rétrograde. Dans la pièce représentée dans la figure 10, deux mécanismes entrainés par le même organe moteur et rouage sont disposés sur un bâti (8) commun, chaque mécanisme ayant son propre échappement rétrograde et son propre engrenage d'entrainement d'aiguille. Dans cette représentation, les deux mécanismes partagent une seule couronne (1), ce qui fait gagner de la place.Other elements of the gearing and the motor unit are not represented in the Figures 3 to 9 , but the figure 10 shows how a device according to the invention can be made in the context of a timepiece, such as a watch, having two needles both driven in a retrograde manner. In the room represented in the figure 10 two mechanisms driven by the same motor and gear are arranged on a common frame (8), each mechanism having its own retrograde escapement and its own needle drive gear. In this representation, the two mechanisms share a single crown (1), which saves space.

Les figures 11 et 12 montrent schématiquement une vue en gros plan la roue satellite avec des dents à rattrapage de jeu (20, 21). Dans cette réalisation de l'invention, chaque dent (20) de la roue satellite est formée avec une partie élastique (21), pour éliminer quelconque jeu de pignon. On peut également construire la roue satellite (2) telle que chaque deuxième, chaque troisième, etc, dent est une dent à rattrapage de jeu. À part de l'avantage connu d'un mouvement plus lisse de l'aiguille, l'utilisation de telles dents élastiques dans le contexte de l'invention a un avantage additionnel : la géométrie des dentures inclinées de la couronne et de la roue satellite est relativement compliquée à fabriquer d'une façon très précise, et l'utilisation des dents élastiques peut compenser le jeu dû à quelconque imprécision de fabrication.The figures 11 and 12 schematically show a close-up view of the satellite wheel with recoil teeth (20, 21). In this embodiment of the invention, each tooth (20) of the satellite wheel is formed with an elastic portion (21), to eliminate any set of pinion. It is also possible to construct the satellite wheel (2) such that each second, each third, etc., tooth is a catch-up tooth. Apart from the known advantage of a smoother movement of the needle, the use such elastic teeth in the context of the invention has an additional advantage: the geometry of the inclined toothings of the crown and the satellite wheel is relatively complicated to manufacture in a very precise manner, and the use of the elastic teeth can compensate the game due to any imprecision of manufacture.

La figure 13 montre en vue latérale la section XII-XII de la roue satellite (2) de la figure 12. De la figure 13 on voit l'angle (β) de la denture relatif à l'axe de rotation (11) de la roue satellite (2). L'angle correspondant à la denture de la couronne est dénoté ici par θ, mais n'est pas représenté dans les figures. Les angles β et θ, ainsi que la géométrie des dents, sont choisis afin d'aboutir un engrenage efficace entre la roue satellite (2) et la couronne (1) à l'angle α. Ces angles d'inclinaison des dentures de la couronne et de la roue satellite sont aussi visibles sur la figure 4. Les angles représentés sont à titre d'exemple seulement, et peuvent être choisis de toutes combinaisons d'angles (α, β, θ) permettant la réalisation de la trajectoire (5) désirée.The figure 13 shows in side view section XII-XII of the satellite wheel (2) of the figure 12 . Of the figure 13 we see the angle (β) of the toothing relating to the axis of rotation (11) of the satellite wheel (2). The angle corresponding to the toothing of the crown is here denoted by θ, but is not shown in the figures. The angles β and θ, as well as the geometry of the teeth, are chosen in order to achieve an effective gearing between the satellite wheel (2) and the crown (1) at the angle α. These angles of inclination of the teeth of the crown and the satellite wheel are also visible on the figure 4 . The angles shown are for example only, and can be chosen from any combination of angles (α, β, θ) allowing the realization of the desired trajectory (5).

Naturellement, la présente invention est sujette à de nombreuses variations quant à sa mise en oeuvre. Bien que plusieurs modes de réalisations aient été décrits, on comprend bien qu'il n'est pas concevable d'identifier de manière exhaustive tous les modes possibles. Il est bien sûr envisageable de remplacer un élément décrit par un élément équivalent sans sortir du cadre de la présente invention.Naturally, the present invention is subject to many variations as to its implementation. Although several embodiments have been described, it is clear that it is not conceivable to exhaustively identify all the possible modes. It is of course conceivable to replace an element described by an equivalent element without departing from the scope of the present invention.

Claims (15)

Dispositif d'entrainement d'au moins une aiguille d'affichage (3) selon une trajectoire tridimensionnelle (5), le dispositif comprenant un premier mécanisme d'engrenage pour transmettre de la force et du mouvement d'un organe moteur à une aiguille d'affichage (3), le dispositif étant caractérisé en ce que : le premier mécanisme d'engrenage comprend une première pièce d'engrenage (1), dit couronne, ayant au moins un secteur courbé denté ; le premier mécanisme d'engrenage comprend en outre une seconde pièce d'engrenage (2), dit satellite, en prise avec le secteur courbé denté de la couronne (1), ledit satellite (2) ayant un premier axe de rotation (11), dit axe du satellite, le satellite (2) étant supporté d'une façon rotative par un porte-satellite (4), le porte-satellite (4) ayant un second axe de rotation (10), dit axe du porte-satellite (10), ledit porte-satellite (4) étant entrainé en rotation par l'organe moteur tel que, quand le porte-satellite (4) est entrainé en rotation, le satellite (2) est ainsi entrainé en rotation en prise avec ledit secteur courbé denté de la couronne (1) ; l'axe du porte-satellite (10) est disposé à un angle (α), dit angle d'inclinaison du satellite, par rapport à l'axe du porte-satellite (10) ; et en ce que le satellite (2) entraine l'aiguille d'affichage (3) en rotation autour d'un troisième axe (12), dit axe de rotation de l'aiguille, sensiblement parallèle à l'axe du satellite (11). A device for driving at least one display needle (3) along a three-dimensional path (5), the device comprising a first gear mechanism for transmitting force and movement of a motor member to a needle display (3), the device being characterized in that : the first gear mechanism comprises a first gear piece (1), said gear, having at least one toothed curved sector; the first gear mechanism further comprises a second gear piece (2), said satellite, engaged with the toothed curved sector of the ring gear (1), said planet gear (2) having a first axis of rotation (11). , said satellite axis, the satellite (2) being supported in a rotary manner by a planet carrier (4), the satellite carrier (4) having a second axis of rotation (10), said axis of the planet carrier (10), said planet carrier (4) being rotated by the motor member such that, when the planet carrier (4) is rotated, the planet (2) is thus rotated in engagement with said curved toothed sector of the crown (1); the axis of the planet carrier (10) is arranged at an angle (α), said angle of inclination of the satellite, with respect to the axis of the planet carrier (10); and in that the satellite (2) drives the display pointer (3) in rotation about a third axis (12), said axis of rotation of the needle, substantially parallel to the axis of the satellite (11). ). Dispositif selon la revendication 1, dans lequel la trajectoire tridimensionnelle (5) suivie par l'aiguille d'affichage (3) est déterminée par la géométrie desdites pièces d'engrenage, par l'angle d'inclinaison du satellite (α), et par l'amplitude de la rotation du porte-satellite (4).Device according to claim 1, wherein the three-dimensional trajectory (5) followed by the display pointer (3) is determined by the geometry of said gear pieces, the angle of inclination of the satellite (α), and by the amplitude of the rotation of the planet carrier (4). Dispositif selon la revendication 1, dans lequel la denture du secteur courbé denté de la couronne (1) est inclinée par rapport au plan de la couronne (1).Device according to claim 1, wherein the toothing of the toothed curved sector of the ring gear (1) is inclined with respect to the plane of the ring gear (1). Dispositif selon l'une des revendications 1 ou 2, dans lequel le satellite (2) comprend une denture inclinée par rapport au plan de rotation du satellite (2).Device according to one of claims 1 or 2, wherein the satellite (2) comprises a toothing inclined relative to the plane of rotation of the satellite (2). Dispositif selon l'une des revendications 1 ou 2, dans lequel l'axe du satellite (11) et l'axe de rotation de l'aiguille (12) sont parallèles et/ou colinéaires.Device according to one of claims 1 or 2, wherein the axis of the satellite (11) and the axis of rotation of the needle (12) are parallel and / or collinear. Dispositif selon l'une quelconque des revendications précédentes, dans lequel le secteur courbé denté de la couronne (1) a une courbure circulaire ou elliptique.Device according to any one of the preceding claims, wherein the toothed curved sector of the ring (1) has a circular or elliptical curvature. Dispositif selon l'une quelconque des revendications précédentes, dans lequel l'engrènement du secteur courbé denté est à l'extérieur de la périphérie de la couronne (1).Device according to any one of the preceding claims, wherein the meshing of the toothed curved sector is outside the periphery of the ring (1). Dispositif selon l'une quelconque des revendications précédentes, dans lequel l'axe du satellite (11) et l'axe de rotation de l'aiguille (12) sont séparés telle que l'aiguille d'affichage (3) soit montée excentriquement sur le satellite (2).Device according to any one of the preceding claims, wherein the axis of the satellite (11) and the axis of rotation of the needle (12) are separated such that the display pointer (3) is mounted eccentrically on the satellite (2). Dispositif selon l'une quelconque des revendications précédentes, dans lequel la géométrie de la couronne (1), la géométrie du satellite (2), la géométrie du porte-satellite (4) et l'angle d'inclinaison du satellite (α) sont tels que la trajectoire (5) de l'aiguille d'affichage (3) forme une section de la surface d'un cône.Device according to any one of the preceding claims, in which the geometry of the crown (1), the geometry of the satellite (2), the geometry of the planet carrier (4) and the angle of inclination of the satellite (α) are such that the path (5) of the display pointer (3) forms a section of the surface of a cone. Dispositif selon l'une quelconque des revendications précédentes, dans lequel le mécanisme est supporté par le bâti (7) d'une pièce d'horlogerie ou d'affichage, et dans lequel la couronne (2) est fixée par rapport au bâti (7).Device according to any one of the preceding claims, in which the mechanism is supported by the frame (7) of a timepiece or display, and in which the crown (2) is fixed relative to the frame (7). ). Dispositif selon l'une quelconque des revendications précédentes, comprenant en outre un cadran tridimensionnel (6) d'une telle forme que la trajectoire (5) de l'aiguille d'affichage (3) est sensiblement parallèle à la surface du cadran (6).Apparatus according to any one of the preceding claims, further comprising a three-dimensional dial (6) of such a shape that the path (5) of the display pointer (3) is substantially parallel to the surface of the dial (6). ). Dispositif selon l'une quelconque des revendications précédentes, comprenant en outre un second mécanisme pour entrainer le porte-satellite (4) tel que le porte-satellite (4) entraine l'aiguille d'affichage (3) d'une façon aller-retour, dit rétrograde, entre une position d'origine et une position terminale de la trajectoire tridimensionnelle (5).Apparatus according to any one of the preceding claims, further comprising a second mechanism for driving the planet carrier (4) such that the planet carrier (4) drives the display needle (3) in a return, said retrograde, between an original position and a terminal position of the three-dimensional trajectory (5). Dispositif selon la revendication 12, dans lequel le mouvement de l'aiguille d'affichage (3) entre la position d'origine et la position terminale est sensiblement plus rapide dans un sens que dans l'autre.Apparatus according to claim 12, wherein the movement of the display pointer (3) between the home position and the end position is substantially faster in one direction than in the other. Dispositif selon l'une quelconque des revendications précédentes, comprenant au moins deux aiguilles d'affichage (3) à trajectoire tridimensionnelle (5) entrainées par au moins deux desdit premiers mécanismes d'engrenage, les secteurs dentés des couronnes (1) d'au moins deux desdits premiers mécanismes d'engrenage étant disposés sur la même couronne (1).Device according to any one of the preceding claims, comprising at least two three-dimensional trajectory display pointers (3) (5) driven by at least two of said first gear mechanisms, the toothed sectors of the crowns (1) of at least two of said first gear mechanisms being disposed on the same ring (1). Pièce d'horlogerie comprenant un dispositif d'entrainement selon l'une quelconque des revendications précédentes.Timepiece comprising a training device according to any one of the preceding claims.
EP20080166906 2008-10-17 2008-10-17 Mechanism for driving hands Ceased EP2177959B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20080166906 EP2177959B1 (en) 2008-10-17 2008-10-17 Mechanism for driving hands

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080166906 EP2177959B1 (en) 2008-10-17 2008-10-17 Mechanism for driving hands

Publications (2)

Publication Number Publication Date
EP2177959A1 true EP2177959A1 (en) 2010-04-21
EP2177959B1 EP2177959B1 (en) 2011-05-11

Family

ID=40473806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080166906 Ceased EP2177959B1 (en) 2008-10-17 2008-10-17 Mechanism for driving hands

Country Status (1)

Country Link
EP (1) EP2177959B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104834203A (en) * 2015-04-15 2015-08-12 宋建华 Bendable clock
US11493883B2 (en) 2018-07-24 2022-11-08 Harry Winston Sa Timepiece drive mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011340C2 (en) * 1999-02-18 2000-08-22 Ruth Djatmiko Analog clock with three dimensional clock face has hands which swivel to accommodate movement around clock face
WO2002101473A1 (en) 2001-06-13 2002-12-19 Gottfried Wolf Clock
WO2008101802A2 (en) * 2007-02-08 2008-08-28 Complitime Sa Watch movement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011340C2 (en) * 1999-02-18 2000-08-22 Ruth Djatmiko Analog clock with three dimensional clock face has hands which swivel to accommodate movement around clock face
WO2002101473A1 (en) 2001-06-13 2002-12-19 Gottfried Wolf Clock
WO2008101802A2 (en) * 2007-02-08 2008-08-28 Complitime Sa Watch movement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104834203A (en) * 2015-04-15 2015-08-12 宋建华 Bendable clock
US11493883B2 (en) 2018-07-24 2022-11-08 Harry Winston Sa Timepiece drive mechanism

Also Published As

Publication number Publication date
EP2177959B1 (en) 2011-05-11

Similar Documents

Publication Publication Date Title
EP2392976B1 (en) Mechanism for indication of the lunar phases
EP3764170B1 (en) Timepiece display mechanism with elastic hand
CH708731B1 (en) Elastic display indicator, in particular an elastic needle, with variable radial extension.
EP3306415B1 (en) Mechanical clock movement with power-reserve detection
EP2177959B1 (en) Mechanism for driving hands
EP3857313B1 (en) Display mechanism with a single dial window
CH716799A2 (en) Elastic needle clockwork display mechanism.
EP3379343B1 (en) Device for displaying the phases of the moon
EP2577405A1 (en) Indicator of the power reserve of a timepiece
WO2010006835A1 (en) Driving mechanism and application in a retrograde display
EP2993532B1 (en) Driving mechanism of at least one mobile element
EP2689299B1 (en) Support for display body of a timepiece movement
CH713649B1 (en) Timepiece comprising a removable cover device for regulating member of a watch movement.
CH718779A2 (en) Watch comprising a dial comprising a fixed part and a mobile part.
EP3764171B1 (en) Mechanism for displaying a horological value
EP4113221A1 (en) Watch including a dial comprising a fixed part and a mobile part
EP4009117A1 (en) Animation mechanism for a timepiece
WO2022122615A1 (en) Animation mechanism for a timepiece
EP4407383A1 (en) Timepiece comprising a mechanism for displaying successive hours in a display zone
CH718137A2 (en) Animation mechanism for a timepiece.
CH710628A2 (en) An moon phase display and timepiece including such a device.
CH719447A1 (en) Device for driving a display member of a timepiece.
CH705336B1 (en) Mechanism for displaying phases of moon in e.g. watch, has tape arranged in plane perpendicular to longitudinal axis of roller, where tape includes portions, and concave end of one portion displays phases of moon through opening
EP2000864A1 (en) Device for correction of a display mechanism for a timepiece
EP3739393A1 (en) Self-winding watch movement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100521

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): CH LI

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20110221

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG

Ref country code: CH

Ref legal event code: EP

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20120214

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20181009

Year of fee payment: 11

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191031