EP2993532A2 - Driving mechanism of at least one mobile element - Google Patents

Driving mechanism of at least one mobile element Download PDF

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Publication number
EP2993532A2
EP2993532A2 EP15182463.8A EP15182463A EP2993532A2 EP 2993532 A2 EP2993532 A2 EP 2993532A2 EP 15182463 A EP15182463 A EP 15182463A EP 2993532 A2 EP2993532 A2 EP 2993532A2
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EP
European Patent Office
Prior art keywords
axis
conductive member
mechanism according
display
sun gear
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
EP15182463.8A
Other languages
German (de)
French (fr)
Other versions
EP2993532B1 (en
EP2993532A3 (en
Inventor
Jean-Marie Bouquin
Sylvain Cornibe
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.)
Richemont International SA
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Richemont International SA
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Filing date
Publication date
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Publication of EP2993532A2 publication Critical patent/EP2993532A2/en
Publication of EP2993532A3 publication Critical patent/EP2993532A3/en
Application granted granted Critical
Publication of EP2993532B1 publication Critical patent/EP2993532B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/262—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for astrological informations
    • 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon
    • 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
    • G04B45/0007—Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork

Definitions

  • the present invention relates to devices or mechanisms for driving at least one movable element such as a mobile display member for displaying an indication along a trajectory, in particular a continuous or closed plane trajectory on herself.
  • This simple mechanism has the disadvantage of allowing the display of only one indication which excludes its use for many applications.
  • the present invention aims a drive mechanism of at least one movable element such as a display mechanism for presenting different movements and in particular to display several indications.
  • the mechanism is capable of producing, in particular, a time display, hours and minutes, possibly with indication of the date and the day of the week, or an sidereal display representing the movement of the earth around the sun or the moon around the earth. for example.
  • the object of the present invention is to provide a mechanism for producing a display of several pieces of information along any trajectory.
  • the present invention relates to a drive mechanism of a movable member as described in claim 1 and embodiments of this mechanism described in the dependent claims.
  • the drive mechanism of a movable element is a display mechanism which comprises a plate 1 having a central shaft 2 constituting a center of rotation.
  • the term "center of rotation” is used broadly here and does not necessarily mean that the movement around this shaft follows a circular rotation or that the shaft 2 is in the center of the display.
  • This display mechanism further comprises a first central guide 3 and a second external guide 4 defining between them a continuous slot 5 forming a path.
  • This trajectory is preferably plane and closed on itself such as a circular or elliptical trajectory, but in variants it may be unclosed (for example in the form of sector or arc) and / or it may comprise displacements. in the direction perpendicular to the plane of the display and therefore not be flat.
  • This central guide 3 and this external guide 4 are located in the same plane parallel to the plate 1 and separated therefrom by a space sufficient to accommodate a much of the rest of the display mechanism.
  • the central guide 3 and the outer guide 4 form a dial having on its upper surface visible indexes or marks 6 forming a graduation for reading a value to be displayed.
  • more complicated trajectories can also be defined by more than two guides.
  • the display mechanism further comprises a movable member formed by a movable display member 7 comprising in the illustrated example a disc 7.1 integral with a needle 7.2.
  • This axis of 8 is kinematically connected, here by a toothed wheel 9, to the first sun gear 10.1, a first gear differential gear 10 whose axis 10.2 is carried by an arm 11 pivoted around the central shaft 2 and therefore the center of rotation of the mechanism.
  • This display axis 8 is pivoted on a first end of a support 12 constituting the carrier of the first gear differential gear 10.
  • the movable member formed by the movable display member 7 can be rotated by the first sun gear 10.1 and carried by the planet carrier 12 differently, for example in the case where the movable member 7 is annular and carries a peripheral toothing, the display axis 8 being in this case virtual.
  • the second end of the support 12 comprises balancing masses 12.1 to balance the moving element formed by the support 12, the mobile display member 7, the display axis 8 and the toothed wheel 9.
  • the central portion of the support 12 serves as the planet carrier for the first differential gear train 10.
  • Two planet gears 10.3, 10.4, visible in FIG. figure 6 are rotated on the support 12 and mesh with each other.
  • One of these planet gears 10.3 meshes with an internal toothing of the first sun gear 10.1 of the first differential gear set 10 while the other sun gear 10.4 meshes with the internal toothing of the second sun gear 10.5 of the first differential gear set 10 .
  • the first differential gear train 10 therefore comprises a first sun gear 10.1 whose external toothing is in engagement with the toothed wheel 9 and whose internal toothing meshes with the first sun gear 10.3 pivoted on the planet carrier 12. It further comprises a second sun gear 10.5 having an internal toothing meshing with the second planet gear 10.4 and an external toothing.
  • the satellite carrier 12 is pivoted on the axis of the first differential gear train which serves as a pivot for the first sun gear 10.1 and the second sun gear 10.5 of this first differential gear train 10.
  • the second sun gear 10.5 of this first differential gear train 10 is connected to a first conductive member 13 pivoted on the central shaft 2 by a kinematic connection comprising a return 22, pivoted on the arm 11, meshing with the external toothing of the second 10.5 planetary, and with a central wheel 14 pivoted on the central shaft 2, the central wheel 14 meshing with the external toothing of a first sun gear 15.1 of a second differential gear train 15, the external gear of the second sun gear 15.2. meshes with said first conductive member 13.
  • the second differential gear train 15 similar to the first 10, comprises a first sun gear 15.1 having an external toothing engaged with the central wheel 14 and whose internal toothing is in engagement with a first planet gear (not visible in the figures) meshing with a second satellite pinion 15.4 (visible on the figure 5 ), both rotated on the carrier 15.5.
  • the second sun gear 15.2 of this second differential gear train 15 meshes by its external toothing with the first conductive member 13 and with its internal toothing with the second sun gear 15.4.
  • the satellite gate 15.5 also serves as a pivot or hub to the first sun gear 15.1 and the second sun gear 15.2.
  • the first conductive member 13 has an upper toothing 13.1 engaged with the external toothing of the second sun gear. 15.2 of the second differential gear train 15 and a lower toothing 13.2 to be driven by a first drive member (not shown).
  • the axis 15.6 of the second differential gear train 15 is fixed in a bridge 16 itself fixed by screws 17 in a second conductive member 18.
  • This second conductive member 18 has the general shape of a ring and comprises a set of teeth 18.1 outer concentric to the central shaft.
  • This second conductive member 18 is rotatably mounted on the plate 1 by any suitable means to be able to rotate concentrically with the central shaft 2 of the display mechanism.
  • a second motor member 20 allows the rotary drive of the second conductive member 18 by its external toothing 18.1.
  • the planet carrier 15.5 of the second differential gear train 15 has an external toothing in engagement with the internal toothing 19.1 of a third conductive member 19.
  • the external toothing 19.2 of this third conductive member 19 is adapted to be driven by a third drive member 26.
  • the arm 11 pivoted on the central shaft 2 has a free end carrying a balancing mass 21 compensating for the weight of the first differential gear train 10, the movable display member 7 and the gear 22.
  • the second conductive member 18 carries a trainer 23 ( figure 2 ) This driver 23 is located substantially diametrically opposite the second differential gear train 15 and has a radial slot 25 traversed by the display axis 8.
  • this display mechanism comprises three inputs, the first motor unit meshing with the first conductive member 13, the second motor member 20 meshing with the second conductive member 18 and the third motor member 26 meshing with the third conductive member 19.
  • the second motor member 20 and the third motor member 26 are integral and consist of two gears having a different number of teeth and inducing different speeds of rotation between the second conductive member 18 and the third conductive member 19.
  • these two motor members 20 and 26 could be independent of one another.
  • the continuous slot 5 forming the path leading to the axis 8 of the display element 7 may be circular, centered on the center of rotation 2 of the display mechanism.
  • the first driving member drives the first conductive member 13 at a rate of one revolution per hour so that the disk 7.1 and the needle 7.2 of the mobile display member 7 take a turn in one hour and display the minutes.
  • the second motor member 20 drives the second conductive member 18 at the rate of one revolution in twelve hours so that the disc 7.1 of the movable display member indicates, according to its position along the continuous slot 5, the hours that can be read using the index 6 of the dial.
  • the third drive member 26 drives the third conductive member 19 at a speed determined so that the rotational movement of the movable display member 7 on itself induced by the rotation of the second conductive member 18 is compensated by the second train Differential gearing 15.
  • the continuous slot 5 determining the trajectory of the display element may be elliptical and represent the orbit of the earth around the sun materialized by the center 2 of the mechanism.
  • the disk 7.1 of the mobile display member 7 may comprise a representation of the earth.
  • the first drive member drives the first conductive member 13 at a rate of one revolution per day to rotate on itself the disk 7.1 of the movable display member 7 at a rate of one revolution per day and the second motor member 20 drives the second conductive member 18 at a rate of one revolution per year to traverse the movable display member 7 along its path in one year.
  • the third drive member 26 drives the third conductive member 19 so as to compensate for the rotation of the gear 22 on itself, by rolling on the wheel 14, induced by its driving in rotation about the central shaft 2.
  • the first differential gear train 10 makes it possible to compensate the oscillations on itself of the mobile display member 7 induced by the angular displacement of the planet carrier 12 of the first gear train. differential 10 due to the variable radius of the trajectory 5 in which the display axis 8 moves.
  • the correction introduced by the third conductive member 19 is fixed and the second motor member 20 and the third motor member 26 can be secured and formed by gears having a different number of teeth .
  • the second motor member 20 may be independent of the third motor member 26.
  • the shape of the continuous slot 5 defining the trajectory of the movable display member 7 may be arbitrary. This shape may be elliptical, oval, square or rectangular, for example if the timepiece equipped with the display mechanism is elliptical, oval, square or rectangular. The display can thus follow the shape of the case and the dial of the timepiece.
  • This slot 5 may also have a star or sinusoidal shape and it is possible to use the variation of the eccentricity of the movable display member 7 with respect to the central shaft 2 to display a third independent quantity, for example the day or the day of the week.
  • the third conductive member 19 can be either removed, since it is no longer necessary to correlate the position of the movable display member 7 along its trajectory with its angular position by relative to its display axis 8, is used to control a particular movement.
  • this display mechanism comprises three inputs.
  • the first input, the first conductive member 13 determines the rotation of the movable display member 7 about its display axis 8.
  • the second input, the second conductive member 18, determines the flow of the organ mobile display 7 along its path defined by the continuous slot 5.
  • the third input, the third conductive member 19 compensates for the rotation on itself of the return 22 induced by its rotational movement around the central shaft 2.
  • each of the differential gear trains 10 and 15 comprises first and second planetary gears having identical external and internal gears as well as identical planet gears.
  • these differential gear trains do not introduce a change of speed and in general do not intervene kinematically in the construction of the displayed information.
  • This display mechanism allows the correction of only the orientation around its axis 8 of the mobile display member 7 by actuating the first conductive member 13 after blocking the second conductive member 18.
  • This display mechanism also enables the position of the mobile display member 7 to be corrected alone along its trajectory 5 by actuating the second conductive member 18 after having blocked the first conductive member 13.
  • the mobile display member 7 keeps an orientation on itself constant during its movement along its trajectory 5.
  • the adjustment of this orientation on itself of the mobile display member 7 can be obtained by rotating the central wheel 14 after blocking the second conductive member 18.
  • the mechanism makes it possible to independently correct the orientation and the position of the mobile display member 7 on its trajectory.
  • the mechanism can drive and manage the movement of another type of movable member.
  • the movable element may comprise a functional element of the watch movement such as the escape wheel.
  • the trajectory of the movable display member 7 is defined by the continuous slot 5 which may have any shape, circular, polygonal, oval, elliptical, sinusoidal, sawtooth Or other.
  • the mechanism can also be used by leaving free the path of the movable element 7, under the effect of the action of the gravity and / or movements of the wearer. According to this embodiment, the balancing of the different mobile crews is no longer necessary.
  • the movable element 7 has a degree of freedom in rotation about the central axis 2 to the sandstone dynamic effects.
  • the second conductive member 18 can follow a free rotation about the central axis 2.
  • This variant is particularly interesting in the context where the movable member 7 comprises an escapement mobile, the anchor and the oscillator being supported on the second conductive member 18.
  • the slot 5 is circular or removed, and the third conductive member 19 is controlled by the second conductive member 18 via the pinions 20 and 26.
  • the first differential gear 10 no longer serves as a functional role and can be deleted.
  • a mobile element 7 has two degrees of freedom in rotation, one around the central axis 2 and the other around the axis 10.2 of the first differential gear train 10, with dynamic effects. Still in this variant, only the first conductive member 13 is actuated to animate the movable member 7 at the desired speed. In this case, the second differential gear train 15, the third conductive member 19 and the gears 20 and 26 can be removed, and the elements 13, 14 would also be modified or removed so that the wheel 13.1 causes the reference 22 to be returned. place of the wheel 14.
  • the kinematic connection connecting the axis of the movable member 7 to the first conductive member 13 comprises two differential gear trains the first differential gear train 10 and the second gear train. Differential gears 15.
  • this kinematic connection connecting the axis of the movable element 7 to the first conductive member 13 comprises only the second differential gear train 15.
  • the kinematic link connecting the movable element 7 to the first conductive member 13 includes only the first differential gear train 10.
  • the first conductive member 13 is driven by a first motor member while the second conductive member 18 can be either free or driven by a second motor member.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un mécanisme d'entraînement d'au moins un élément mobile (7) conduit en rotation autour d'un axe d'affichage (8) et conduit en révolution autour d'un axe central (2) par un second organe conducteur (18) coaxial audit axe central (2) qui se distingue en ce que : - l'axe de l'élément mobile (7) est entraîné en rotation par une liaison cinématique différentielle reliant l'axe d'affichage (8) à un premier organe conducteur (13) coaxial à l'axe central (2) ; - l'élément mobile (7) est pivoté dans un support (12) lui-même pivoté sur un premier axe (10.2) porté par un bras (11) pivoté sur l'axe central (2) ; que l'axe d'affichage (8), l'axe central (2) et le premier axe (10.2) sont parallèles mais non confondus.The invention relates to a drive mechanism for at least one movable element (7) rotated about a display axis (8) and driven in revolution about a central axis (2) by a second member conductor (18) coaxial with said central axis (2) which is distinguished in that: - The axis of the movable member (7) is rotated by a differential kinematic connection connecting the display axis (8) to a first conductive member (13) coaxial with the central axis (2); - The movable element (7) is pivoted in a support (12) itself pivoted on a first axis (10.2) carried by an arm (11) pivoted on the central axis (2); that the display axis (8), the central axis (2) and the first axis (10.2) are parallel but not coincidental.

Description

La présente invention se rapporte aux dispositifs ou mécanismes d'entraînement d'au moins un élément mobile tel qu'un organe d'affichage mobile permettant d'afficher une indication le long d'une trajectoire, en particulier une trajectoire plane continue ou fermée sur elle-même.The present invention relates to devices or mechanisms for driving at least one movable element such as a mobile display member for displaying an indication along a trajectory, in particular a continuous or closed plane trajectory on herself.

On connaît du document DE 19641885 un tel affichage comportant un cadran muni d'une fente de forme quelconque fermée sur elle-même dans laquelle coulisse un indicateur dont l'axe traverse une fente radiale d'un disque d'entraînement en rotation situé sous le cadran. La rotation de ce disque d'entraînement entraîne l'indicateur qui se déplace alors le long de la fente pratiquée dans le cadran.Document is known From 19641885 such a display having a dial provided with a slot of any shape closed on itself in which slides an indicator whose axis passes through a radial slot of a rotating drive disk located under the dial. The rotation of this drive disc drives the indicator which then moves along the slot in the dial.

Ce mécanisme simple a l'inconvénient de ne permettre l'affichage que d'une seule indication ce qui exclut son utilisation pour de nombreuses applications.This simple mechanism has the disadvantage of allowing the display of only one indication which excludes its use for many applications.

La présente invention a pour but un mécanisme d'entraînement d'au moins un élément mobile tel qu'un mécanisme d'affichage permettant de présenter différents mouvements et en particulier d'afficher plusieurs indications. Par exemple, le mécanisme est apte à réaliser notamment un affichage horaire, heures et minutes, éventuellement avec indication du quantième et du jour de la semaine ou un affichage sidéral représentant le mouvement de la terre autour du soleil ou de la lune autour de la terre par exemple.The present invention aims a drive mechanism of at least one movable element such as a display mechanism for presenting different movements and in particular to display several indications. For example, the mechanism is capable of producing, in particular, a time display, hours and minutes, possibly with indication of the date and the day of the week, or an sidereal display representing the movement of the earth around the sun or the moon around the earth. for example.

D'une façon générale le but de la présente invention est de réaliser un mécanisme permettant la réalisation d'un affichage de plusieurs informations suivant une trajectoire quelconque.In general, the object of the present invention is to provide a mechanism for producing a display of several pieces of information along any trajectory.

La présente invention a pour objet un mécanisme d'entraînement d'un élément mobile tel que décrit à la revendication 1 et des formes d'exécution de ce mécanisme décrites dans les revendications dépendantes.The present invention relates to a drive mechanism of a movable member as described in claim 1 and embodiments of this mechanism described in the dependent claims.

Le dessin annexé illustre schématiquement et à titre d'exemple une forme d'exécution du mécanisme d'entraînement d'un organe mobile selon la présente invention.

  • La figure 1 est une vue en perspective du mécanisme.
  • La figure 2 est une vue en perspective de dessus du mécanisme, le guide central et le guide extérieur constituant le cadran étant enlevés.
  • La figure 3 est une vue similaire à la figure 2, une partie du premier organe conducteur étant retirée.
  • La figure 4 est une vue de dessous du mécanisme tel que représenté à la figure 3.
  • La figure 5 est une coupe selon la ligne A-A de la figure 3, le premier organe conducteur ayant tourné sur lui-même d'environ 180°.
  • La figure 6 est une coupe suivant la ligne B-B de la figure 5 du second différentiel.
The accompanying drawing illustrates schematically and by way of example an embodiment of the drive mechanism of a movable member according to the present invention.
  • The figure 1 is a perspective view of the mechanism.
  • The figure 2 is a perspective view from above of the mechanism, the central guide and the outer guide constituting the dial being removed.
  • The figure 3 is a view similar to the figure 2 , a portion of the first conductive member being removed.
  • The figure 4 is a bottom view of the mechanism as shown in figure 3 .
  • The figure 5 is a cut along line AA of the figure 3 , the first conductive member having turned on itself about 180 °.
  • The figure 6 is a section along the line BB of the figure 5 second differential.

Le mécanisme d'entraînement d'un élément mobile selon la forme d'exécution illustrée est un mécanisme d'affichage qui comporte une platine 1 présentant un arbre central 2 constituant un centre de rotation. Le terme « centre de rotation » est utilisé ici de façon large et n'entend pas nécessairement que le mouvement autour de cet arbre suit une rotation circulaire ni que l'arbre 2 se trouve au centre de l'affichage. Ce mécanisme d'affichage comporte encore un premier guide central 3 et un second guide externe 4 définissant entre eux une fente continue 5 formant une trajectoire.The drive mechanism of a movable element according to the illustrated embodiment is a display mechanism which comprises a plate 1 having a central shaft 2 constituting a center of rotation. The term "center of rotation" is used broadly here and does not necessarily mean that the movement around this shaft follows a circular rotation or that the shaft 2 is in the center of the display. This display mechanism further comprises a first central guide 3 and a second external guide 4 defining between them a continuous slot 5 forming a path.

Cette trajectoire est de préférence plane et fermée sur elle-même telle qu'une trajectoire circulaire ou elliptique, mais dans des variantes elle peut être non fermée (par exemple en forme de secteur ou d'arc) et/ou elle peut comprendre des déplacements dans la direction perpendiculaire au plan de l'affichage et donc ne pas être plane.This trajectory is preferably plane and closed on itself such as a circular or elliptical trajectory, but in variants it may be unclosed (for example in the form of sector or arc) and / or it may comprise displacements. in the direction perpendicular to the plane of the display and therefore not be flat.

Ce guide central 3 et ce guide externe 4 sont situés dans un même plan parallèle à la platine 1 et séparés de celle-ci d'un espace suffisant pour loger une grande partie du reste du mécanisme d'affichage. Dans l'exemple illustré, le guide central 3 et le guide externe 4 forment un cadran comportant sur sa surface supérieure visible des index ou repères 6 formant une graduation pour la lecture d'une valeur à afficher. Selon des variantes, des trajectoires plus compliquées peuvent également être définies par plus de deux guides.This central guide 3 and this external guide 4 are located in the same plane parallel to the plate 1 and separated therefrom by a space sufficient to accommodate a much of the rest of the display mechanism. In the illustrated example, the central guide 3 and the outer guide 4 form a dial having on its upper surface visible indexes or marks 6 forming a graduation for reading a value to be displayed. According to variants, more complicated trajectories can also be defined by more than two guides.

Dans cet exemple, le mécanisme d'affichage comporte encore un élément mobile formé par un organe mobile d'affichage 7 comportant dans l'exemple illustré un disque 7.1 solidaire d'une aiguille 7.2. Cet organe mobile d'affichage 7, situé au-dessus du cadran formé par le guide central 3 et le guide externe 4, est porté par un axe d'affichage 8 traversant le cadran 3, 4 par la fente continue 5. Cet axe d'affichage 8 est relié cinématiquement, ici par une roue dentée 9, au premier planétaire 10.1, d'un premier train d'engrenages différentiel 10 dont l'axe 10.2 est porté par un bras 11 pivoté autour de l'arbre central 2 et donc du centre de rotation du mécanisme. Cet axe d'affichage 8 est pivoté sur une première extrémité d'un support 12 constituant le porte-satellite du premier train d'engrenages différentiel 10. L'élément mobile formé par l'organe mobile d'affichage 7 peut être entraîné en rotation par le premier planétaire 10.1 et porté par le porte-satellite 12 de façon différente, par exemple dans le cas où l'élément mobile 7 est annulaire et porte une denture périphérique, l'axe d'affichage 8 étant dans ce cas virtuel.In this example, the display mechanism further comprises a movable member formed by a movable display member 7 comprising in the illustrated example a disc 7.1 integral with a needle 7.2. This mobile display member 7, located above the dial formed by the central guide 3 and the outer guide 4, is carried by a display axis 8 passing through the dial 3, 4 by the continuous slot 5. This axis of 8 is kinematically connected, here by a toothed wheel 9, to the first sun gear 10.1, a first gear differential gear 10 whose axis 10.2 is carried by an arm 11 pivoted around the central shaft 2 and therefore the center of rotation of the mechanism. This display axis 8 is pivoted on a first end of a support 12 constituting the carrier of the first gear differential gear 10. The movable member formed by the movable display member 7 can be rotated by the first sun gear 10.1 and carried by the planet carrier 12 differently, for example in the case where the movable member 7 is annular and carries a peripheral toothing, the display axis 8 being in this case virtual.

La deuxième extrémité du support 12 comporte des masses d'équilibrages 12.1 pour équilibrer l'équipage mobile formé par le support 12, l'organe mobile d'affichage 7, l'axe d'affichage 8 et la roue dentée 9.The second end of the support 12 comprises balancing masses 12.1 to balance the moving element formed by the support 12, the mobile display member 7, the display axis 8 and the toothed wheel 9.

La partie centrale du support 12 sert de porte-satellite du premier train d'engrenages différentiel 10. Deux pignons satellites 10.3, 10.4, visibles dans la figure 6, sont pivotés sur le support 12 et engrènent l'un avec l'autre. L'un de ces pignons satellites 10.3 engrène avec une denture interne du premier planétaire 10.1 du premier train d'engrenages différentiel 10 tandis que l'autre pignon satellite 10.4 engrène avec la denture intérieure du second planétaire 10.5 du premier train d'engrenage différentiel 10.The central portion of the support 12 serves as the planet carrier for the first differential gear train 10. Two planet gears 10.3, 10.4, visible in FIG. figure 6 , are rotated on the support 12 and mesh with each other. One of these planet gears 10.3 meshes with an internal toothing of the first sun gear 10.1 of the first differential gear set 10 while the other sun gear 10.4 meshes with the internal toothing of the second sun gear 10.5 of the first differential gear set 10 .

Dans cette construction, le premier train d'engrenages différentiel 10 comporte donc un premier planétaire 10.1 dont la denture extérieure est en prise avec la roue dentée 9 et dont la denture interne engrène avec le premier pignon satellite 10.3 pivoté sur le porte-satellite 12. Il comporte encore un second planétaire 10.5 comportant une denture interne en prise avec le second pignon satellite 10.4 et une denture externe.In this construction, the first differential gear train 10 therefore comprises a first sun gear 10.1 whose external toothing is in engagement with the toothed wheel 9 and whose internal toothing meshes with the first sun gear 10.3 pivoted on the planet carrier 12. It further comprises a second sun gear 10.5 having an internal toothing meshing with the second planet gear 10.4 and an external toothing.

Le porte satellite 12 est pivoté sur l'axe du premier train d'engrenages différentiel qui sert de pivot au premier planétaire 10.1 et au second planétaire 10.5 de ce premier train d'engrenages différentiel 10.The satellite carrier 12 is pivoted on the axis of the first differential gear train which serves as a pivot for the first sun gear 10.1 and the second sun gear 10.5 of this first differential gear train 10.

Le second planétaire 10.5 de ce premier train d'engrenages différentiel 10 est relié à un premier organe conducteur 13 pivoté sur l'arbre central 2 par une liaison cinématique comprenant un renvoi 22, pivoté sur le bras 11, engrenant avec la denture externe du second planétaire 10.5, et avec une roue centrale 14 pivotée sur l'arbre central 2, cette roue centrale 14 engrenant avec la denture externe d'un premier planétaire 15.1 d'un second train d'engrenages différentiel 15 dont la denture externe du second planétaire 15.2 engrène avec ledit premier organe conducteur 13.The second sun gear 10.5 of this first differential gear train 10 is connected to a first conductive member 13 pivoted on the central shaft 2 by a kinematic connection comprising a return 22, pivoted on the arm 11, meshing with the external toothing of the second 10.5 planetary, and with a central wheel 14 pivoted on the central shaft 2, the central wheel 14 meshing with the external toothing of a first sun gear 15.1 of a second differential gear train 15, the external gear of the second sun gear 15.2. meshes with said first conductive member 13.

Dans cette exécution, le second train d'engrenages différentiel 15, similaire au premier 10, comporte un premier planétaire 15.1 comportant une denture externe en prise avec la roue centrale 14 et dont la denture interne est en prise avec un premier pignon satellite (non visible sur les figures) engrenant avec un second pignon satellite 15.4 (visible sur la figure 5), tous deux pivotés sur le porte-satellite 15.5. Le second planétaire 15.2 de ce second train d'engrenages différentiel 15 engrène par sa denture externe avec le premier organe conducteur 13 et avec sa denture interne avec le second pignon satellite 15.4. Le porte satellite 15.5 sert également de pivot ou moyeu au premier planétaire 15.1 et au second planétaire 15.2.In this embodiment, the second differential gear train 15, similar to the first 10, comprises a first sun gear 15.1 having an external toothing engaged with the central wheel 14 and whose internal toothing is in engagement with a first planet gear (not visible in the figures) meshing with a second satellite pinion 15.4 (visible on the figure 5 ), both rotated on the carrier 15.5. The second sun gear 15.2 of this second differential gear train 15 meshes by its external toothing with the first conductive member 13 and with its internal toothing with the second sun gear 15.4. The satellite gate 15.5 also serves as a pivot or hub to the first sun gear 15.1 and the second sun gear 15.2.

Dans l'exemple illustré, le premier organe conducteur 13 comporte une denture supérieure 13.1 en prise avec la denture externe du second planétaire 15.2 du second train d'engrenages différentiel 15 et une denture inférieure 13.2 destinée à être entraînée par un premier organe moteur (non illustré).In the illustrated example, the first conductive member 13 has an upper toothing 13.1 engaged with the external toothing of the second sun gear. 15.2 of the second differential gear train 15 and a lower toothing 13.2 to be driven by a first drive member (not shown).

L'axe 15.6 du second train d'engrenages différentiel 15 est fixé dans un pont 16 lui-même fixé par des vis 17 dans un second organe conducteur 18. Ce second organe conducteur 18 présente la forme générale d'une couronne et comporte une denture extérieure 18.1 concentrique à l'arbre central. Ce second organe conducteur 18 est monté en rotation sur la platine 1 par tous moyens adéquats pour pouvoir tourner concentriquement à l'arbre central 2 du mécanisme d'affichage. Un second organe moteur 20 permet l'entraînement en rotation du second organe conducteur 18 par sa denture extérieure 18.1.The axis 15.6 of the second differential gear train 15 is fixed in a bridge 16 itself fixed by screws 17 in a second conductive member 18. This second conductive member 18 has the general shape of a ring and comprises a set of teeth 18.1 outer concentric to the central shaft. This second conductive member 18 is rotatably mounted on the plate 1 by any suitable means to be able to rotate concentrically with the central shaft 2 of the display mechanism. A second motor member 20 allows the rotary drive of the second conductive member 18 by its external toothing 18.1.

Toujours dans l'exemple illustré, le porte-satellite 15.5 du second train d'engrenages différentiel 15 comporte une denture extérieure en prise avec la denture intérieure 19.1 d'un troisième organe conducteur 19. La denture extérieure 19.2 de ce troisième organe conducteur 19 est apte à être entraînée par un troisième organe moteur 26.Still in the illustrated example, the planet carrier 15.5 of the second differential gear train 15 has an external toothing in engagement with the internal toothing 19.1 of a third conductive member 19. The external toothing 19.2 of this third conductive member 19 is adapted to be driven by a third drive member 26.

Comme on le voit particulièrement sur la figure 3, le bras 11 pivoté sur l'arbre central 2 comporte une extrémité libre portant une masse d'équilibrage 21 compensant le poids du premier train d'engrenages différentiel 10, de l'organe mobile d'affichage 7 et du renvoi 22.As we see particularly on the figure 3 the arm 11 pivoted on the central shaft 2 has a free end carrying a balancing mass 21 compensating for the weight of the first differential gear train 10, the movable display member 7 and the gear 22.

Enfin, le second organe conducteur 18 porte un entraîneur 23 (figure 2) fixé par des vis 24. Cet entraîneur 23 est situé sensiblement diamétralement à l'opposé du second train d'engrenages différentiel 15 et comporte une fente radiale 25 traversée par l'axe d'affichage 8.Finally, the second conductive member 18 carries a trainer 23 ( figure 2 ) This driver 23 is located substantially diametrically opposite the second differential gear train 15 and has a radial slot 25 traversed by the display axis 8.

De ce qui précède, on constate que ce mécanisme d'affichage comporte trois entrées, le premier organe moteur engrenant avec le premier organe conducteur 13, le second organe moteur 20 engrenant avec le second organe conducteur 18 et le troisième organe moteur 26 engrenant avec le troisième organe conducteur 19.From the above, it can be seen that this display mechanism comprises three inputs, the first motor unit meshing with the first conductive member 13, the second motor member 20 meshing with the second conductive member 18 and the third motor member 26 meshing with the third conductive member 19.

Dans l'exemple illustré et décrit plus haut, le deuxième organe moteur 20 et le troisième organe moteur 26 sont solidaires et constitués par deux pignons ayant un nombre de dents différents et induisant des vitesses de rotation différentes entre le second organe conducteur 18 et le troisième organe conducteur 19.In the example illustrated and described above, the second motor member 20 and the third motor member 26 are integral and consist of two gears having a different number of teeth and inducing different speeds of rotation between the second conductive member 18 and the third conductive member 19.

Dans des variantes, ces deux organes moteur 20 et 26 pourraient être indépendants l'un de l'autre.In variants, these two motor members 20 and 26 could be independent of one another.

Dans une application particulière horlogère du mécanisme d'affichage, la fente continue 5 formant la trajectoire conduisant l'axe 8 de l'élément d'affichage 7 peut être circulaire, centrée sur le centre de rotation 2 du mécanisme d'affichage. Le premier organe moteur entraîne le premier organe conducteur 13 à raison d'un tour par heure de sorte que le disque 7.1 et l'aiguille 7.2 de l'organe mobile d'affichage 7 fassent un tour en une heure et permettent d'afficher les minutes. Dans une telle application, le second organe moteur 20 entraîne le second organe conducteur 18 à raison d'une révolution en douze heures de sorte que le disque 7.1 de l'organe mobile d'affichage indique, suivant sa position le long de la fente continue 5, les heures qui peuvent être lues à l'aide des index 6 du cadran.In a particular clock application of the display mechanism, the continuous slot 5 forming the path leading to the axis 8 of the display element 7 may be circular, centered on the center of rotation 2 of the display mechanism. The first driving member drives the first conductive member 13 at a rate of one revolution per hour so that the disk 7.1 and the needle 7.2 of the mobile display member 7 take a turn in one hour and display the minutes. In such an application, the second motor member 20 drives the second conductive member 18 at the rate of one revolution in twelve hours so that the disc 7.1 of the movable display member indicates, according to its position along the continuous slot 5, the hours that can be read using the index 6 of the dial.

Le troisième organe moteur 26 entraîne le troisième organe conducteur 19 à une vitesse déterminée de façon que le mouvement de rotation de l'organe mobile d'affichage 7 sur lui-même induit par la rotation du second organe conducteur 18 soit compensé par le second train d'engrenages différentie 15.The third drive member 26 drives the third conductive member 19 at a speed determined so that the rotational movement of the movable display member 7 on itself induced by the rotation of the second conductive member 18 is compensated by the second train Differential gearing 15.

Dans une autre application du mécanisme d'affichage, sidérale, la fente continue 5 déterminant la trajectoire de l'élément d'affichage peut être elliptique et représenter l'orbite de la terre autour du soleil matérialisé par le centre 2 du mécanisme. Le disque 7.1 de l'organe mobile d'affichage 7 peut comporter une représentation de la terre. Le premier organe moteur entraîne le premier organe conducteur 13 à raison d'un tour par jour pour faire tourner sur lui-même le disque 7.1 de l'organe mobile d'affichage 7 à raison d'un tour par jour et le second organe moteur 20 entraîne le second organe conducteur 18 à raison d'un tour par an pour faire parcourir l'organe mobile d'affichage 7 le long de sa trajectoire en un an. Le troisième organe moteur 26 entraîne le troisième organe conducteur 19 de manière à compenser la rotation du renvoi 22 sur lui-même, en roulant sur la roue 14, induit par son entraînement en rotation autour de l'arbre central 2.In another application of the sidereal display mechanism, the continuous slot 5 determining the trajectory of the display element may be elliptical and represent the orbit of the earth around the sun materialized by the center 2 of the mechanism. The disk 7.1 of the mobile display member 7 may comprise a representation of the earth. The first drive member drives the first conductive member 13 at a rate of one revolution per day to rotate on itself the disk 7.1 of the movable display member 7 at a rate of one revolution per day and the second motor member 20 drives the second conductive member 18 at a rate of one revolution per year to traverse the movable display member 7 along its path in one year. The third drive member 26 drives the third conductive member 19 so as to compensate for the rotation of the gear 22 on itself, by rolling on the wheel 14, induced by its driving in rotation about the central shaft 2.

Dans une telle forme d'exécution, le premier train d'engrenages différentiel 10 permet de compenser les oscillations sur lui-même de l'organe mobile d'affichage 7 induit par le déplacement angulaire du porte-satellite 12 du premier train d'engrenages différentiel 10 dues au rayon variable de la trajectoire 5 dans laquelle se déplace l'axe d'affichage 8.In such an embodiment, the first differential gear train 10 makes it possible to compensate the oscillations on itself of the mobile display member 7 induced by the angular displacement of the planet carrier 12 of the first gear train. differential 10 due to the variable radius of the trajectory 5 in which the display axis 8 moves.

Lorsque les indications affichées par la position de l'organe mobile d'affichage 7 le long de la trajectoire et par sa position angulaire (rotation sur lui-même) sont corrélées, heures et minutes ou position de la terre sur son orbite autour du soleil et orientation de la terre au cours d'une journée, la correction introduite par le troisième organe conducteur 19 est fixe et le second organe moteur 20 ainsi que le troisième organe moteur 26 peuvent être solidarisés et formés par des pignons ayant un nombre de dents différents.When the indications displayed by the position of the movable display member 7 along the path and by its angular position (rotation on itself) are correlated, hours and minutes or position of the earth in its orbit around the sun and orientation of the earth during a day, the correction introduced by the third conductive member 19 is fixed and the second motor member 20 and the third motor member 26 can be secured and formed by gears having a different number of teeth .

Si par contre les grandeurs affichées respectivement par la position de l'organe mobile d'affichage 7 le long de sa trajectoire 5 et par sa position angulaire autour de son axe 8 ne sont pas corrélées alors le second organe moteur 20 peut être indépendant du troisième organe moteur 26.If, on the other hand, the quantities respectively displayed by the position of the mobile display member 7 along its trajectory 5 and by its angular position about its axis 8 are not correlated, then the second motor member 20 may be independent of the third motor member 26.

La forme de la fente continue 5 définissant la trajectoire de l'organe mobile d'affichage 7 peut être quelconque. Cette forme peut être elliptique, ovale, carrée ou rectangulaire, par exemple si la pièce d'horlogerie équipée du mécanisme d'affichage est de forme elliptique, ovale, carrée ou rectangulaire. L'affichage peut suivre ainsi la forme du boîtier et du cadran de la pièce d'horlogerie.The shape of the continuous slot 5 defining the trajectory of the movable display member 7 may be arbitrary. This shape may be elliptical, oval, square or rectangular, for example if the timepiece equipped with the display mechanism is elliptical, oval, square or rectangular. The display can thus follow the shape of the case and the dial of the timepiece.

Cette fente 5 peut également présenter une forme en étoile ou sinusoïdale et il est possible d'utiliser la variation de l'excentration de l'organe mobile d'affichage 7 par rapport à l'arbre central 2 pour afficher une troisième grandeur indépendante par exemple le quantième ou le jour de la semaine.This slot 5 may also have a star or sinusoidal shape and it is possible to use the variation of the eccentricity of the movable display member 7 with respect to the central shaft 2 to display a third independent quantity, for example the day or the day of the week.

Dans des applications diverses du mécanisme d'affichage le troisième organe conducteur 19 peut être soit supprimé, puisqu'il n'est plus indispensable de corréler la position de l'organe mobile d'affichage 7 le long de sa trajectoire avec sa position angulaire par rapport à son axe d'affichage 8, soit exploité pour piloter un déplacement particulier.In various applications of the display mechanism the third conductive member 19 can be either removed, since it is no longer necessary to correlate the position of the movable display member 7 along its trajectory with its angular position by relative to its display axis 8, is used to control a particular movement.

D'une façon générale, on voit que selon cette forme d'exécution ce mécanisme d'affichage comporte trois entrées. La première entrée, soit le premier organe conducteur 13, détermine la rotation de l'organe mobile d'affichage 7 autour de son axe d'affichage 8. La seconde entrée, soit le second organe conducteur 18, détermine la circulation de l'organe mobile d'affichage 7 le long de sa trajectoire définie par la fente continue 5. Et la troisième entrée, soit le troisième organe conducteur 19, permet de compenser la rotation sur lui-même du renvoi 22 induite par son déplacement en rotation autour de l'arbre central 2.In general, it can be seen that according to this embodiment, this display mechanism comprises three inputs. The first input, the first conductive member 13 determines the rotation of the movable display member 7 about its display axis 8. The second input, the second conductive member 18, determines the flow of the organ mobile display 7 along its path defined by the continuous slot 5. And the third input, the third conductive member 19, compensates for the rotation on itself of the return 22 induced by its rotational movement around the central shaft 2.

De préférence, chacun des trains d'engrenages différentiels 10 et 15 comporte des premier et second planétaires comportant des dentures externes et internes identiques ainsi que des pignons satellites identiques. L'important toutefois est que ces trains d'engrenages différentiels n'introduisent pas de modification de vitesse et d'une façon générale n'interviennent pas cinématiquement dans la construction de l'information affichée.Preferably, each of the differential gear trains 10 and 15 comprises first and second planetary gears having identical external and internal gears as well as identical planet gears. The important thing however is that these differential gear trains do not introduce a change of speed and in general do not intervene kinematically in the construction of the displayed information.

Ce mécanisme d'affichage permet la correction seule de l'orientation autour de son axe 8 de l'organe mobile d'affichage 7 en actionnant le premier organe conducteur 13 après avoir bloqué le second organe conducteur 18.This display mechanism allows the correction of only the orientation around its axis 8 of the mobile display member 7 by actuating the first conductive member 13 after blocking the second conductive member 18.

Ce mécanisme d'affichage permet également la correction seule de la position de l'organe mobile d'affichage 7 le long de sa trajectoire 5 en actionnant le second organe conducteur 18 après avoir bloqué le premier organe conducteur 13.This display mechanism also enables the position of the mobile display member 7 to be corrected alone along its trajectory 5 by actuating the second conductive member 18 after having blocked the first conductive member 13.

Il faut encore noter qu'avec un déplacement du second organe conducteur 18, le premier organe conducteur 13 étant libre, et en bloquant la roue centrale 14, l'organe mobile d'affichage 7 garde une orientation sur lui-même constante durant son déplacement le long de sa trajectoire 5.It should also be noted that with a displacement of the second conductive member 18, the first conductive member 13 being free, and blocking the central wheel 14, the mobile display member 7 keeps an orientation on itself constant during its movement along its trajectory 5.

Le réglage de cette orientation sur lui-même de l'organe mobile d'affichage 7 peut être obtenu en faisant tourner la roue centrale 14 après avoir bloqué le second organe conducteur 18.The adjustment of this orientation on itself of the mobile display member 7 can be obtained by rotating the central wheel 14 after blocking the second conductive member 18.

Un tel mécanisme d'affichage à trois entrées 13, 18, 19 indépendantes permet à l'organe mobile d'affichage 7 :

  • de suivre une trajectoire quelconque;
  • de s'orienter vers une direction précise après une révolution de la première entrée 13, moyennant une corrélation entre les entrées 18 et 19 ; et/ou
  • de garder une direction constante durant son déplacement le long de sa trajectoire, pour un état particulier du mécanisme.
Such a display mechanism with three independent inputs 13, 18, 19 enables the mobile display member 7:
  • to follow any trajectory;
  • to orient towards a precise direction after a revolution of the first input 13, with a correlation between the inputs 18 and 19; and or
  • to keep a constant direction during its movement along its trajectory, for a particular state of the mechanism.

Le mécanisme permet de corriger indépendamment l'orientation et la position de l'organe mobile d'affichage 7 sur sa trajectoire.The mechanism makes it possible to independently correct the orientation and the position of the mobile display member 7 on its trajectory.

Les entrées 13, 18 et 19 étant indépendantes, il est donc envisageable qu'elles soient continues, discontinues, uniformes ou non pour exploiter toutes les caractéristiques de ce mécanisme afin de générer des affichages particuliers et spécifiques ou des déplacements particuliers de l'élément mobile.Since the inputs 13, 18 and 19 are independent, it is therefore conceivable that they be continuous, discontinuous, uniform or not, in order to exploit all the characteristics of this mechanism in order to generate particular and specific displays or particular displacements of the mobile element. .

A la place de l'organe mobile d'affichage 7, le mécanisme peut conduire et gérer le mouvement d'un autre type d'élément mobile. Par exemple, l'élément mobile peut comprendre un élément fonctionnel du mouvement d'horlogerie tel que le mobile d'échappement.In place of the movable display member 7, the mechanism can drive and manage the movement of another type of movable member. For example, the movable element may comprise a functional element of the watch movement such as the escape wheel.

Selon la forme d'exécution décrite ci-dessus, la trajectoire de l'organe mobile d'affichage 7 est définie par la fente continue 5 qui peut présenter une forme quelconque, circulaire, polygonale, ovale, elliptique, sinusoïdale, en dents de scie ou autre.According to the embodiment described above, the trajectory of the movable display member 7 is defined by the continuous slot 5 which may have any shape, circular, polygonal, oval, elliptical, sinusoidal, sawtooth Or other.

Dans une autre forme d'exécution, le mécanisme peut aussi être utilisé en laissant libre la trajectoire de l'élément mobile 7, sous l'effet de l'action de la pesanteur et/ou des mouvements du porteur. Selon cette forme d'exécution, l'équilibrage des différents équipages mobiles n'est plus nécessaire.In another embodiment, the mechanism can also be used by leaving free the path of the movable element 7, under the effect of the action of the gravity and / or movements of the wearer. According to this embodiment, the balancing of the different mobile crews is no longer necessary.

Selon une première variante de cette forme d'exécution, l'élément mobile 7 a un degré de liberté en rotation autour de l'axe central 2 aux grés des effets dynamiques. Le second organe conducteur 18 peut suivre une rotation libre autour de l'axe central 2. Cette variante est particulièrement intéressante dans le cadre où l'élément mobile 7 comprend un mobile d'échappement, l'ancre et l'oscillateur étant supportés sur le second organe conducteur 18. Dans ce cas, la fente 5 est circulaire ou supprimée, et le troisième organe conducteur 19 est piloté par le second organe conducteur 18 par l'intermédiaire des pignons 20 et 26. Dans ce cas, le premier train différentiel 10 ne sert plus de rôle fonctionnel et peut être supprimé.According to a first variant of this embodiment, the movable element 7 has a degree of freedom in rotation about the central axis 2 to the sandstone dynamic effects. The second conductive member 18 can follow a free rotation about the central axis 2. This variant is particularly interesting in the context where the movable member 7 comprises an escapement mobile, the anchor and the oscillator being supported on the second conductive member 18. In this case, the slot 5 is circular or removed, and the third conductive member 19 is controlled by the second conductive member 18 via the pinions 20 and 26. In this case, the first differential gear 10 no longer serves as a functional role and can be deleted.

Selon une seconde variante de cette forme d'exécution, un élément mobile 7 a deux degrés de liberté en rotation, l'un autour de l'axe central 2 et l'autre autour de l'axe 10.2 du premier train d'engrenages différentiel 10, aux grés des effets dynamiques. Encore dans cette variante, uniquement le premier organe conducteur 13 est actionné pour animer l'élément mobile 7 à la vitesse souhaitée. Dans ce cas, le second train d'engrenages différentiel 15, le troisième organe conducteur 19 et les pignons 20 et 26 peuvent être supprimés, et les éléments 13, 14 seraient également modifiés ou supprimés pour que la roue 13.1 entraîne le renvoi 22 à la place de la roue 14.According to a second variant of this embodiment, a mobile element 7 has two degrees of freedom in rotation, one around the central axis 2 and the other around the axis 10.2 of the first differential gear train 10, with dynamic effects. Still in this variant, only the first conductive member 13 is actuated to animate the movable member 7 at the desired speed. In this case, the second differential gear train 15, the third conductive member 19 and the gears 20 and 26 can be removed, and the elements 13, 14 would also be modified or removed so that the wheel 13.1 causes the reference 22 to be returned. place of the wheel 14.

Il est donc possible, pour des configurations bien distinctes de ce mécanisme d'entraînement d'élément mobile, d'envisager un déplacement de l'élément mobile 7 soit contraint par une fente 5, soit aléatoire en libérant les deux degrés de liberté autour des axes 10.2 et 2.It is therefore possible, for very distinct configurations of this movable element driving mechanism, to envisage a displacement of the movable element 7 either constrained by a slot 5, or random by releasing the two degrees of freedom around the elements. axes 10.2 and 2.

Dans la forme d'exécution décrite en référence aux figures la liaison cinématique reliant l'axe de l'élément mobile 7 au premier organe conducteur 13 comporte deux trains d'engrenages différentiels le premier train d'engrenages différentiel 10 et le second train d'engrenages différentiel 15.In the embodiment described with reference to the figures the kinematic connection connecting the axis of the movable member 7 to the first conductive member 13 comprises two differential gear trains the first differential gear train 10 and the second gear train. Differential gears 15.

Dans la première variante du mécanisme d'entraînement cette liaison cinématique reliant l'axe de l'élément mobile 7 au premier organe conducteur 13 ne comporte que le second train d'engrenages différentiel 15.In the first variant of the drive mechanism this kinematic connection connecting the axis of the movable element 7 to the first conductive member 13 comprises only the second differential gear train 15.

Dans la seconde variante du mécanisme d'entraînement la liaison cinématique reliant l'élément mobile 7 au premier organe conducteur 13 ne comporte que le premier train d'engrenages différentiel 10.In the second variant of the drive mechanism the kinematic link connecting the movable element 7 to the first conductive member 13 includes only the first differential gear train 10.

D'une façon générale, le mécanisme d'entraînement d'un élément mobile 7 porté par un axe d'affichage 8 et conduit autour d'un axe central 2 par un second organe conducteur 18 coaxial audit axe central 2 et comportant une fente radiale 25 dans laquelle l'axe d'affichage 8 est monté coulissant se distingue en ce que :

  • l'axe d'affichage 8 est entraîné en rotation sur lui-même par une liaison cinématique différentielle reliant cet axe d'affichage 8 à un premier organe conducteur 13 coaxial à l'axe central 2 ;
  • l'axe d'affichage 8 est pivoté dans un support 12 lui-même pivoté sur un premier axe 10.2 porté par un bras 11 pivoté sur l'axe central 2 ;
  • l'axe d'affichage 8, l'axe central 2 et le premier axe 10.2 sont parallèles mais non confondus.
In general, the driving mechanism of a mobile element 7 carried by a display axis 8 and leads around a central axis 2 by a second conductive member 18 coaxial with said central axis 2 and having a radial slot 25 in which the display axis 8 is slidably mounted is distinguished in that:
  • the display axis 8 is rotated on itself by a differential kinematic connection connecting this display axis 8 to a first conductive member 13 coaxial with the central axis 2;
  • the display axis 8 is pivoted in a support 12 itself pivoted on a first axis 10.2 carried by an arm 11 pivoted on the central axis 2;
  • the display axis 8, the central axis 2 and the first axis 10.2 are parallel but not coincidental.

Le premier organe conducteur 13 est entraîné par un premier organe moteur tandis que le second organe conducteur 18 peut être soit libre soit entraîné par un second organe moteur.The first conductive member 13 is driven by a first motor member while the second conductive member 18 can be either free or driven by a second motor member.

Claims (19)

Mécanisme d'entraînement d'au moins un élément mobile (7) conduit en rotation autour d'un axe d'affichage (8) et conduit en révolution autour d'un axe central (2) par un second organe conducteur (18) coaxial audit axe central (2) caractérisé par le fait - que l'axe de l'élément mobile (7) est entraîné en rotation par une liaison cinématique différentielle reliant l'axe d'affichage (8) à un premier organe conducteur (13) coaxial à l'axe central (2) ; - que l'élément mobile (7) est pivoté dans un support (12) lui-même pivoté sur un premier axe (10.2) porté par un bras (11) pivoté sur l'axe central (2) ; - que l'axe d'affichage (8), l'axe central (2) et le premier axe (10.2) sont parallèles mais non confondus . Drive mechanism for at least one movable element (7) rotates about a display axis (8) and rotates about a central axis (2) by a second coaxial conductive member (18) central axis (2) characterized by the fact - that the axis of the movable member (7) is rotated by a differential kinematic connection connecting the display axis (8) to a first conductive member (13) coaxial with the central axis (2); - that the movable element (7) is pivoted in a support (12) itself pivoted on a first axis (10.2) carried by an arm (11) pivoted on the central axis (2); - that the display axis (8), the central axis (2) and the first axis (10.2) are parallel but not coincidental. Mécanisme selon la revendication 1, caractérisé par le fait que la liaison cinématique reliant l'axe d'affichage (8) au premier organe conducteur (13) comprend un premier train d'engrenages différentiel (10) pivoté sur le premier axe (10.2).Mechanism according to Claim 1, characterized in that the kinematic connection connecting the display shaft (8) to the first conductive member (13) comprises a first differential gear train (10) pivoted on the first axis (10.2). . Mécanisme selon la revendication 2, caractérisé par le fait que l'axe d'affichage (8) porte une roue dentée (9) engrenant avec un premier planétaire (10.1) du premier train d'engrenages différentiel (10).Mechanism according to claim 2, characterized in that the display shaft (8) carries a toothed wheel (9) meshing with a first sun gear (10.1) of the first differential gear set (10). Mécanisme selon la revendication 3, caractérisé par le fait que le support (12) constitue le porte satellite du premier train d'engrenages différentiel (10) dont le second planétaire (10.5) est cinématiquement relié au premier organe conducteur (13).Mechanism according to claim 3, characterized in that the carrier (12) is the satellite carrier of the first gear differential (10) whose second sun gear (10.5) is kinematically connected to the first conductive member (13). Mécanisme selon la revendication 4, caractérisé par le fait que la liaison cinématique reliant le second planétaire (10.5) du premier train d'engrenages différentiel (10) au premier organe conducteur (13) comprend une roue centrale (14) coaxiale à l'axe central (2) et un second train d'engrenages différentiel (15) dont le premier planétaire (15.1) engrène avec la roue centrale (14) et dont le second planétaire (15.2) engrène avec le premier organe conducteur (13).Mechanism according to claim 4, characterized in that the kinematic connection connecting the second sun gear (10.5) of the first differential gear set (10) to the first conductive member (13) comprises a central wheel (14) coaxial with the axis central (2) and a second gear differential (15) whose first sun gear (15.1) meshes with the central wheel (14) and whose second sun gear (15.2) meshes with the first conductive member (13). Mécanisme selon la revendication 5, caractérisé par le fait que le second train d'engrenages différentiel (15) est porté par le second organe conducteur (18).Mechanism according to claim 5, characterized in that the second differential gear train (15) is carried by the second conductive member (18). Mécanisme selon les revendications 5 ou 6, caractérisé par le fait que le second train d'engrenages différentiel (15) comporte un porte satellite (15.5) engrenant avec un troisième organe conducteur (19).Mechanism according to claims 5 or 6, characterized in that the second differential gear train (15) comprises a satellite carrier (15.5) meshing with a third conductive member (19). Mécanisme selon l'une des revendications 1 à 7, caractérisé par le fait que le premier organe conducteur (13) est apte à être entraîné par un premier organe moteur.Mechanism according to one of claims 1 to 7, characterized in that the first conductive member (13) is adapted to be driven by a first motor member. Mécanisme selon l'une des revendications 1 à 8, caractérisé par le fait que le second organe conducteur (18) est apte à être entraîné par un second organe moteur (20).Mechanism according to one of claims 1 to 8, characterized in that the second conductive member (18) is adapted to be driven by a second motor member (20). Mécanisme selon l'une des revendications 7 à 9, caractérisé par le fait que le troisième organe conducteur (19) est apte à être entraîné par un troisième organe moteur (26).Mechanism according to one of claims 7 to 9, characterized in that the third conductive member (19) is adapted to be driven by a third drive member (26). Mécanisme selon l'une des revendications 2 à 10, caractérisé par le fait que la liaison cinématique reliant le second planétaire (10.5) du premier train d'engrenages différentiel (10) au premier organe conducteur (13) comporte encore un ou plusieurs renvois (22).Mechanism according to one of claims 2 to 10, characterized in that the kinematic connection connecting the second sun gear (10.5) of the first differential gear (10) to the first conductive member (13) further comprises one or more references ( 22). Mécanisme selon l'une des revendications 6 à 11, caractérisé par le fait que chacun des deux trains d'engrenages différentiels (10, 15) comporte un premier et un second planétaire comportant chacun une denture interne et une denture externe et un porte-satellite portant deux satellites engrenant ensemble, et l'un avec la denture interne du premier planétaire et l'autre avec la denture interne du second planétaire.Mechanism according to one of Claims 6 to 11, characterized in that each of the two differential gear trains (10, 15) comprises a first and a second sun gear each comprising an internal toothing and an external toothing and a planet carrier. carrying two satellites meshing together, and one with the internal toothing of the first sun gear and the other with the internal toothing of the second sun gear. Mécanisme selon l'une des revendications 7 à 12, caractérisé par le fait que le second organe conducteur (18) est relié cinématiquement au troisième organe conducteur (19) par une liaison cinématique (20, 26) introduisant une différence de vitesse de rotation entre ces deux organes conducteurs.Mechanism according to one of claims 7 to 12, characterized in that the second conductive member (18) is kinematically connected to the third conductive member (19) by a kinematic connection (20, 26) introducing a difference in rotational speed between these two conductive organs. Mécanisme selon l'une des revendications précédentes, caractérisé par le fait que l'élément mobile (7) est apte à être déplacé le long d'une trajectoire préétablie, définie par une fente (5) située entre au moins un premier guide (3) et un second guide (4).Mechanism according to one of the preceding claims, characterized in that the movable element (7) is able to be moved along a predetermined path, defined by a slot (5) located between at least a first guide (3). ) and a second guide (4). Mécanisme selon la revendication 14, caractérisé par le fait que la trajectoire définie par la fente (5) est plane, et en ce que la fente (5) est continue et fermée sur elle-même.Mechanism according to claim 14, characterized in that the path defined by the slot (5) is flat, and in that the slot (5) is continuous and closed on itself. Mécanisme selon la revendication 15, caractérisé par le fait que la fente (5) présente une forme circulaire, ovale, polygonale, sinusoïdale ou en dents de scie.Mechanism according to claim 15, characterized in that the slot (5) has a circular, oval, polygonal, sinusoidal or saw-tooth shape. Mécanisme selon l'une des revendications 1 à 16, caractérisé par le fait que l'élément mobile (7) est un organe mobile d'affichage et qu'en plus de la position de l'organe mobile d'affichage (7) le long de sa trajectoire (5) et de sa position angulaire autour de son axe d'affichage (8) une troisième valeur est affichée, représentée par la distance séparant l'axe de rotation (2) de l'axe d'affichage (8).Mechanism according to one of claims 1 to 16, characterized in that the movable element (7) is a movable display member and that in addition to the position of the movable display member (7) the along its trajectory (5) and its angular position around its display axis (8) a third value is displayed, represented by the distance separating the axis of rotation (2) from the display axis (8). Mécanisme selon l'une des revendications précédentes, caractérisé par le fait que l'élément mobile (7) est un élément d'affichage qui comprend une représentation de la terre.Mechanism according to one of the preceding claims, characterized in that the movable element (7) is a display element which comprises a representation of the earth. Mécanisme selon l'une des revendications précédentes, caractérisé par le fait que l'élément mobile (7) comprend un mobile d'échappement.Mechanism according to one of the preceding claims, characterized in that the movable element (7) comprises an escape wheel.
EP15182463.8A 2014-09-05 2015-08-26 Driving mechanism of at least one mobile element Active EP2993532B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01346/14A CH710084A1 (en) 2014-09-05 2014-09-05 drive at least one movable element.

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EP2993532A3 EP2993532A3 (en) 2016-05-25
EP2993532B1 EP2993532B1 (en) 2019-02-06

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WO2019244035A1 (en) 2018-06-18 2019-12-26 Société Anonyme De La Manufacture D' Horlogerie Audemars Piguet & Cie Trochoidal display mechanism

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108931912A (en) * 2017-05-29 2018-12-04 蒙特雷布勒盖股份有限公司 Clockwork
WO2019244035A1 (en) 2018-06-18 2019-12-26 Société Anonyme De La Manufacture D' Horlogerie Audemars Piguet & Cie Trochoidal display mechanism
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CH710084A1 (en) 2016-03-15
EP2993532A3 (en) 2016-05-25

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