EP2993533A1 - Timepiece - Google Patents

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Publication number
EP2993533A1
EP2993533A1 EP15177593.9A EP15177593A EP2993533A1 EP 2993533 A1 EP2993533 A1 EP 2993533A1 EP 15177593 A EP15177593 A EP 15177593A EP 2993533 A1 EP2993533 A1 EP 2993533A1
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EP
European Patent Office
Prior art keywords
display
timepiece according
gear
differential gear
movement
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
EP15177593.9A
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German (de)
French (fr)
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EP2993533B1 (en
Inventor
Nicolas Stalder
Christophe ABBURRA
Mathieu MARANGE
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.)
Van Cleef and Arpels SA
Original Assignee
Van Cleef and Arpels SA
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Publication of EP2993533A1 publication Critical patent/EP2993533A1/en
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    • 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
    • G04B45/0038—Figures or parts thereof moved by the clockwork

Definitions

  • the present invention relates to watches or timepieces comprising one or more displays. More particularly, but not exclusively, the present invention relates to timepieces in which at least one display is complex.
  • the object of the present invention is to provide a timepiece comprising a display of a mechanism for operating on demand said display in demonstration mode for which a complete display cycle is performed in a reduced time without as much affecting the accuracy or disordering said display once the movement of the movable member at this higher demonstration speed ends.
  • the present invention relates to a timepiece comprising a movement driving the movable member or members of at least one display which is distinguished by the characteristics listed in claim 1.
  • the present invention relates to a timepiece of mechanical preference such as a wristwatch having a box containing a movement comprising a motor member, for example a cylinder, a work train, an exhaust, a regulating member and at least one a display, this movement causing at least one mobile display member such as a time display, a calendar, the day of the week, a moon phase or other astronomical complication for example.
  • the drive of the movable member of the display is effected from a power take-off of the movement which may be the roadway or any other motive of the movement kinematically connected to this movable member of the display.
  • the timepiece comprises a demonstration mechanism for operating on demand the display in demonstration mode for which a complete display cycle is performed in a reduced time without affecting the accuracy or disordering said display once the displacement of the movable display member at this demonstration speed has ended.
  • the kinematic link connecting the power takeoff of the movement to the movable member of the display comprises a differential gear which makes it possible to add the displacement imposed on the mobile display member by the mechanism. demonstration at displacement of the movable display member caused by the power take-off.
  • the power take-off is connected to a first sun gear of the differential gear while the movable member of the display is connected to a second sun gear of said differential gear.
  • a satellite gate of the differential gear is pivoted concentrically to the two gears of the differential gear.
  • a satellite axis is pivoted on the satellite carrier and is secured to a first satellite engaged with the first sun gear of the differential gear and a second satellite engaged with the second sun gear of the differential gear.
  • the satellite gate has an external toothing meshing with an animation feedback of a demonstration mechanism.
  • This demonstration mechanism comprises a source of motive power kinematically connected by a control gear on the one hand to the return animation and on the other hand to a speed controller.
  • this demonstration mechanism comprises a control member arming and releasing the source of motive power so that it causes the animation of the satellite gear of the differential gear to be driven by the angular value corresponding to a cycle of rotation. complete display of the movable display member before this source of motive power is again blocked at a standstill.
  • the demonstration mechanism In normal operation of the timepiece, the demonstration mechanism is at rest, its source of motive power being blocked, the animation return is blocked at a standstill and the power take-off of the movement causes, by the intermediate of the differential gear, the mobile display member at the speed corresponding to the value to be displayed, minutes, hours, date, day of the week or other.
  • the control member When the user wishes to see or check the operation of the display of the timepiece, it presses on the control member, which then arms releases the source of motive power causing the drive animation referral and therefore the satellite gate of the differential gear of a predetermined value by said source of motive power corresponding to a display cycle of the movable display member. With the control member released, the source of motive energy is locked in its end position of the demonstration cycle.
  • the movable member of the display to be driven in a demonstration mode during a complete display cycle at a demonstration speed greater than its normal operating speed.
  • the user can therefore view a display cycle and verify that the display works to satisfaction.
  • the accuracy of the display is not influenced by its displacement in demonstration mode once this demonstration mode has ended since the movement imposed on the mobile display member by the animation pinion s adds to the displacement of the movable display member caused by the power take-off.
  • This timepiece comprises a box 1, a dial 2, a winding crown 3 and a control member formed by a pusher 4 accessible from outside the box 1.
  • This timepiece comprises a watch movement comprising a drive member, a work train, an escapement, a regulating member and at least one display whose movable member is driven by a power take-off.
  • This timepiece also comprises a retrograde hours display disposed at 6H having a scale of hours 5 affixed to the dial 2 cooperating with a petal 6 of a rotating flower activated by the movement of the timepiece.
  • the display of minutes is complex and comprises on the dial a first graduation minute 7, from 0 to 30, cooperating with a first movable display member 8 in the form of a butterfly carried by a first disc 9 rotating minutes.
  • This minute display further comprises a second graduation minutes 10, 30 to 45 minutes, cooperating with a second mobile display member carried by a second disk 11 rotating minutes.
  • this minute display further comprises a third graduation minute 12, 45 to 60 minutes, cooperating with a third mobile display member carried by a third disc 13 minutes.
  • the movement of this timepiece comprises, in a conventional manner, a motor member, for example a barrel, a work train connecting this barrel to an escapement and a regulating member.
  • the finishing gear comprises a minute wheel whose axis 14 constitutes the power take-off of the movement for displaying the minutes of the timepiece.
  • This shaft 14 carries the center pinion meshing with the barrel and is secured to the first sun gear 15 of a differential gear.
  • This differential gear further comprises a second sun gear 16 and a satellite gate 17, located between the two sun wheels 15, 16, both of which are concentrically pivoted to the axis 14 constituting the PTO of the minute display.
  • a first satellite 18 is integral and concentric with a second satellite 19 pivoted on the satellite door 17.
  • the satellite door has an external toothing 17.1 engaged with an animation pinion 20 of the demonstration mechanism.
  • the first satellite 18 meshes with an external toothing 15.1 of the first sun gear 15 while the second satellite 19 meshes with a first toothing 16.1 of the second sun gear 16.
  • the second sun gear 16 is elliptical and constitutes the control wheel of the three disks of the minutes 9, 11 and 13.
  • the second sun gear 16 has a second external toothing 16.2 meshing with a first elliptical 21 driving a first minute display wheel 22 carrying the first rotating disc minute 9.
  • This external toothing 16.2 of the second sun gear 16 of the differential gear meshes still with a second elliptical 23 the second minute display wheel 24 and a third minute display wheel 25.
  • the second minute display wheel 24 carries the second minute 11 rotary disc while the third minute display wheel 25 carries the third disc rotating minutes 13.
  • the gear ratios of the differential gear are such that when the first sun gear 15 rotates one full 360 °, the second sun gear 16 makes a half turn, ie 180 °.
  • the gear ratio between the second external toothing of the second sun gear 16.2 and the first display wheels 22, the second display 24 and the third display 25 minutes is such that when the second sun gear 16 makes a half turn, or 180 °, a complete display cycle of minutes from 0 to 60 is performed.
  • the presence of a differential gearing between the power takeoff of the movement 14, here the roadway, and the control wheel of the minutes display, here the second sun gear 16 of the differential gearing makes it possible to on the one hand to modify, by means of the differential gearing, the number of revolutions of the power take-off 14 per time unit relative to the number of revolutions per unit time of the second sun gear 16 of the differential gearing according to the particular characteristics of the ordered display.
  • this allows, as will be seen later, to have a second input through the satellite gate of the differential gear to change the travel speed of a display cycle including to demonstrate and verify the operation of the display, which is an important advantage for complex displays like the one described above.
  • the timepiece illustrated with Figures 1 to 10 still includes a demonstration mechanism illustrated in more detail in figures 9 and 10 .
  • This demonstration mechanism comprises a power source constituted, in the illustrated embodiment, by a gear wheel 30 pivoted on a fixed part of the movement.
  • This toothed wheel 30 comprises a rim 31 provided with external locking notches 32 and as many internal notches 33. These notches 32 and these notches 33 are equal in number and uniformly distributed over the circumference of said rim 31, in the case illustrated they are five in number each separated by 72 °.
  • This energy source further comprises a driver 34 pivoted coaxially with the toothed wheel 30 comprising a pin 35 and a spring blade 29 ending in a pushing member 29.1 cooperating with the internal notches 33.
  • the energy source further comprises an actuating spring 36 whose end rests on the pin 35 tending to rotate the driver 34 in the counterclockwise direction.
  • the demonstration mechanism further comprises a rocker 37 pivoted by one end on a fixed part of the movement and whose free end comprises a slot 38 in which is engaged a finger 39 integral with the coach 34.
  • This rocker 37 is subject to the action of a return spring 40 tending to move it clockwise to its rest position illustrated in FIG. figure 9 .
  • This flip-flop 37 is controlled by the control member 4 of the timepiece.
  • a latch pawl 41 is pivoted on the free end of the latch 37 and is subjected to the action of a pawl spring 42 tending to move it towards the toothed wheel 30.
  • This locking pawl 41 is shaped so as to cooperate with the locking notches 32 of the toothed wheel 30 to lock it in the rest position ( figure 9 ).
  • This locking pawl 41 further includes a pawl pin 42 cooperating, as will be seen later, with a 43 which includes the end of the latch 37.
  • the locking pawl 41 is held in abutment against the periphery of the rim 31 of the toothed wheel by a pawl spring 44.
  • the external toothing of the gearwheel 30 of the power source is engaged with the pinion of a drive wheel 45 whose wheel meshes with the animation gear 20 which is engaged with the external toothing 17.1 of the door satellite 17 of the differential gear.
  • the wheel of the driving wheel 45 is also engaged with the gear of the first reduction wheel 46.1 of a reduction chain comprising three reduction mobiles 46.1, 46.2 and 46.3.
  • the pinion of the third reduction wheel 46.3 is engaged with a flywheel 47.
  • This demonstration mechanism and the differential gear are designed such that the gear ratio of the drive train connecting the gear wheel 30 of the energy source to the second sun gear 16 of the differential gear is such that a rotation of 72 ° of the toothed wheel 30, or from one of its stop positions to the next, causes displacement of the movable member (s) of the display equivalent to a complete display cycle, here from 0 to 60 minutes, but in a reduced time for example of the order of 5 to 60 seconds, preferably between 10 and 20 seconds.
  • the operation of the demonstration mechanism is as follows: from its rest position illustrated in figure 9 , the user pushes the control member 4 tilting the rocker 37 in the counterclockwise direction. The free end of this rocker drives the finger 39 and therefore the driver 34 against the action of the actuating spring 36 until the push member 29.1 of the blade spring 29 of the coach 34 comes s snap into a notch 33 of the toothed wheel 30. At this moment, the stinger 43 of the lever 37 pushes the pawl 41 against its pawl spring 44 and releases the locking notch 32 of the toothed wheel 30 in which it is engaged. The demonstration mechanism is then in the armed position illustrated in the figure 10 .
  • toothed wheel 30 When the user releases the control member 4, the toothed wheel 30 is released, the latch 37 returns to the rest position, the pawl 41 rests against the periphery of the rim 31 of the toothed wheel 30. toothed wheel 30 is driven in the counterclockwise direction by the push member 29.1 of the driver 34 subjected to the action of the actuating spring by its leaf spring 36 until the pawl 41 falls back into the next locking notch 32 of the gear wheel 30.
  • the toothed wheel 30 For each actuation of the control member 4, the toothed wheel 30 thus performs a predetermined angular displacement, 72 ° in the illustrated example, corresponding to a complete cycle of the member or movable members of the display of the workpiece timepiece thanks to the driving wheel 45, the animation return 20 and the differential gear.
  • this display demonstration cycle is in addition to the normal displacement of the movable member (s) of the display controlled by the first sun gear of the differential gear, so that the display demonstration cycle does not disturb the indication delivered by the display outside the demonstration periods.
  • the movable member (s) of the display are driven by the addition of the movement due to the power take-off 14 and the movement due to the demonstration mechanism.
  • the speed of the demonstration movement of the display can be regulated not by a flywheel but by a centrifugal governor or any other regulator.
  • the energy source can be made differently by a barrel or other device provided that the gear wheel 30 is driven at each actuation of the control member 4 by an angular value which, taking into account the kinematic chain connecting it to the mobile display member, make travel to this mobile display member a complete display cycle.
  • the invention has been described in connection with a complex minute display of a timepiece.
  • any display, simple or complex, of a timepiece such as for example a time display, a date, a weekday, a moon phase, can be driven in a more demonstration mode fast and piecemeal over a complete cycle of the envisaged display using the mechanism according to the invention.
  • This mechanism preferably comprises a differential gear, the first sun gear is kinematically connected to the power take-off of the movement and the second sun gear is kinematically connected to the movable member of the envisaged display.
  • This mechanism also comprises a demonstration mechanism capable of driving the satellite gate of the differential gear, for each actuation, by a value corresponding to a complete display cycle of the displayed value.
  • the figure 11 illustrates the object of the invention used to drive in demonstration mode a simple display.
  • the second sun gear 16 of the differential gear carries an axis 50 carrying a needle 52, a movable member of a display of the timepiece.
  • the differential gear is designed so that when the satellite gate 17 is blocked, the second sun gear 16 rotates at the same speed as the first sun gear 15 which is driven by the power take-off 14 of the movement. watchmaking.
  • the display hand 52 may be driven into a demonstration mode at a fast speed for a complete cycle by a demonstration mechanism causing the animation referral 20 which is engaged with the satellite gate 17 of the differential.
  • the needle 52 may be the minute hand of a time display.
  • the axis of this minute hand is driven by the second sun gear 16 of the differential gear and is connected by a conventional timer to an hour hand coordinated with the minute hand.
  • a full cycle of the time display lasts twelve or twenty-four hours at the display speed normal but each actuation of the control member this display cycle can be traveled in a few tens of seconds, the hour hand performing a complete turn while the minute hand performs twelve respectively twenty-four turns.
  • the movable member of this display may be a date crown.
  • the mobile organ of this display can be a disc of days, bearing the name of the days of the week.
  • the mobile display member is kinematically connected to the second sun gear 16 of the differential gear and the power take-off 14 corresponding to this display is kinematically connected to the first sun gear 15 of the differential gear.
  • the demonstration mechanism allows, for each actuation of a control member 4 accessible from outside the box 1 of the timepiece, to drive the satellite gate 17 of the differential gear in a angular displacement corresponding to a complete cycle of the mobile display member (s) at a speed greater than that of the normal operation of the display.
  • the duration of the complete display cycle in normal operation is sixty minutes and in demonstration mode from ten to thirty seconds, for example.

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  • General Physics & Mathematics (AREA)
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Abstract

Pièce d'horlogerie comportant une boîte (1) logeant un mouvement comprenant un organe moteur, un rouage de finissage, un échappement, un organe réglant et un affichage comprenant au moins un organe mobile (8; 52), caractérisée par le fait qu'elle comporte un mécanisme de démonstration provoquant à chaque actionnement d'un organe de commande (4), accessible de l'extérieur de la boîte (1), l'entraînement de l'organe mobile d'une valeur angulaire correspondant à un cycle complet de ce dernier à une vitesse supérieure à celle du fonctionnement normal de l'affichage, tout en n'affectant pas la précision de l'affichage une fois que le déplacement de l'organe mobile à cette vitesse de démonstration supérieure prend fin.

Figure imgaf001
Timepiece comprising a box (1) housing a movement comprising a drive member, a work train, an escapement, a regulating member and a display comprising at least one movable member (8; 52), characterized in that it comprises a demonstration mechanism causing each actuation of a control member (4) accessible from the outside of the box (1), the drive of the movable member of an angular value corresponding to a complete cycle of the latter at a speed greater than that of the normal operation of the display, while not affecting the accuracy of the display once the movement of the movable member at this higher demonstration speed ends.
Figure imgaf001

Description

La présente invention se rapporte aux montres ou pièces d'horlogerie comportant un ou plusieurs affichages. Plus particulièrement mais non exclusivement, la présente invention se rapporte aux pièces d'horlogerie dont au moins un affichage est complexe.The present invention relates to watches or timepieces comprising one or more displays. More particularly, but not exclusively, the present invention relates to timepieces in which at least one display is complex.

Le but de la présente invention est de munir une pièce d'horlogerie comportant un affichage d'un mécanisme permettant d'actionner à la demande ledit affichage en mode démonstration pour lequel un cycle complet d'affichage s'effectue en un temps réduit sans pour autant affecter la précision ou dérégler ledit affichage une fois que le déplacement de l'organe mobile à cette vitesse de démonstration supérieure prend fin.The object of the present invention is to provide a timepiece comprising a display of a mechanism for operating on demand said display in demonstration mode for which a complete display cycle is performed in a reduced time without as much affecting the accuracy or disordering said display once the movement of the movable member at this higher demonstration speed ends.

La présente invention a pour objet une pièce d'horlogerie comportant un mouvement entraînant le ou les organes mobiles d'au moins un affichage qui se distingue par les caractéristiques énumérées à la revendication 1.The present invention relates to a timepiece comprising a movement driving the movable member or members of at least one display which is distinguished by the characteristics listed in claim 1.

Le dessin annexé illustre schématiquement et à titre d'exemple deux formes d'exécution de la pièce d'horlogerie selon l'invention.

  • La figure 1 est une vue de dessus d'une pièce d'horlogerie selon l'invention.
  • La figure 2 est une vue en perspective de dessus du mouvement de la pièce d'horlogerie de la figure 1, certains ponts étant enlevés.
  • La figure 3 est une vue en plan de dessus du mouvement de la pièce d'horlogerie illustrée à la figure 1.
  • La figure 4 est une vue partielle du mécanisme d'affichage des minutes de la pièce d'horlogerie illustrée à la figure 1.
  • La figure 5 est une vue en plan de l'engrenage différentiel entraînant les organes mobiles de l'affichage des minutes de la pièce d'horlogerie illustrée à la figure 1.
  • La figure 6 est une vue de dessous de l'engrenage du différentiel illustré à la figure 4.
  • La figure 7 est une vue en perspective de l'engrenage du différentiel illustré à la figure 4.
  • La figure 8 est une vue en coupe selon la ligne I-I de la figure 6.
  • La figure 9 est une vue en perspective d'un mécanisme de démonstration entraînant des organes mobiles de l'affichage des minutes de la pièce d'horlogerie illustrée à la figure 1 à une vitesse de démonstration en position de repos inactif.
  • La figure 10 est une vue en perspective du mécanisme de démonstration en position activée.
  • La figure 11 illustre l'engrenage différentiel d'une autre forme d'exécution de l'invention.
The accompanying drawing illustrates schematically and by way of example two embodiments of the timepiece according to the invention.
  • The figure 1 is a top view of a timepiece according to the invention.
  • The figure 2 is a perspective view from above of the movement of the timepiece of the figure 1 , some bridges being removed.
  • The figure 3 is a top plan view of the movement of the timepiece illustrated in FIG. figure 1 .
  • The figure 4 is a partial view of the minute display mechanism of the timepiece illustrated in FIG. figure 1 .
  • The figure 5 is a plan view of the differential gear driving the moving parts of the minute display of the timepiece illustrated in FIG. figure 1 .
  • The figure 6 is a bottom view of the differential gear shown in the figure 4 .
  • The figure 7 is a perspective view of the differential gear shown in FIG. figure 4 .
  • The figure 8 is a sectional view along line II of the figure 6 .
  • The figure 9 is a perspective view of a demonstration mechanism driving moving parts of the minute display of the timepiece illustrated in FIG. figure 1 at a demonstration speed in idle rest position.
  • The figure 10 is a perspective view of the demonstration mechanism in the activated position.
  • The figure 11 illustrates the differential gearing of another embodiment of the invention.

La présente invention a pour objet une pièce d'horlogerie de préférence mécanique telle qu'une montre bracelet comportant une boîte renfermant un mouvement comprenant un organe moteur, par exemple un barillet, un rouage de finissage, un échappement, un organe réglant et au moins un affichage, ce mouvement entraînant au moins un organe mobile d'affichage tel qu'un affichage horaire, un quantième, le jour de la semaine, une phase de lune ou une autre complication astronomique par exemple. L'entraînement de l'organe mobile de l'affichage s'effectue à partir d'une prise de force du mouvement qui peut être la chaussée ou tout autre mobile du mouvement relié cinématiquement à cet organe mobile de l'affichage.The present invention relates to a timepiece of mechanical preference such as a wristwatch having a box containing a movement comprising a motor member, for example a cylinder, a work train, an exhaust, a regulating member and at least one a display, this movement causing at least one mobile display member such as a time display, a calendar, the day of the week, a moon phase or other astronomical complication for example. The drive of the movable member of the display is effected from a power take-off of the movement which may be the roadway or any other motive of the movement kinematically connected to this movable member of the display.

La singularité de la présente invention est que la pièce d'horlogerie comprend un mécanisme de démonstration permettant d'actionner à la demande l'affichage en mode démonstration pour lequel un cycle complet d'affichage s'effectue en un temps réduit sans pour autant affecter la précision ou dérégler ledit affichage une fois que le déplacement de l'organe mobile d'affichage à cette vitesse de démonstration a pris fin. Selon une forme d'exécution privilégiée, la liaison cinématique reliant la prise de force du mouvement à l'organe mobile de l'affichage comporte un engrenage différentiel qui permet d'ajouter le déplacement imposé à l'organe mobile d'affichage par le mécanisme de démonstration au déplacement de l'organe mobile d'affichage provoqué par la prise de force du mouvement.The singularity of the present invention is that the timepiece comprises a demonstration mechanism for operating on demand the display in demonstration mode for which a complete display cycle is performed in a reduced time without affecting the accuracy or disordering said display once the displacement of the movable display member at this demonstration speed has ended. According to a preferred embodiment, the kinematic link connecting the power takeoff of the movement to the movable member of the display comprises a differential gear which makes it possible to add the displacement imposed on the mobile display member by the mechanism. demonstration at displacement of the movable display member caused by the power take-off.

Dans un mode l'exécution, la prise de force du mouvement est reliée à un premier planétaire de l'engrenage différentiel tandis que l'organe mobile de l'affichage est relié à un second planétaire dudit engrenage différentiel. Un porte satellite de l'engrenage différentiel est pivoté concentriquement aux deux planétaires de l'engrenage différentiel. Un axe de satellite est pivoté sur le porte satellite et est solidaire d'un premier satellite en prise avec le premier planétaire de l'engrenage différentiel et d'un second satellite en prise avec le second planétaire de l'engrenage différentiel. Le porte satellite comporte une denture externe en prise avec un renvoi d'animation d'un mécanisme de démonstration. Ce mécanisme de démonstration comporte une source d'énergie motrice reliée cinématiquement par un rouage de régulation d'une part au renvoi d'animation et d'autre part à un régulateur de vitesse. Enfin, ce mécanisme de démonstration comporte un organe de commande armant et libérant la source d'énergie motrice pour que celle-ci entraîne par le renvoi d'animation le porte satellite de l'engrenage différentiel d'une valeur angulaire correspondant à un cycle d'affichage complet de l'organe mobile d'affichage avant que cette source d'énergie motrice ne soit à nouveau bloquée à l'arrêt.In one embodiment, the power take-off is connected to a first sun gear of the differential gear while the movable member of the display is connected to a second sun gear of said differential gear. A satellite gate of the differential gear is pivoted concentrically to the two gears of the differential gear. A satellite axis is pivoted on the satellite carrier and is secured to a first satellite engaged with the first sun gear of the differential gear and a second satellite engaged with the second sun gear of the differential gear. The satellite gate has an external toothing meshing with an animation feedback of a demonstration mechanism. This demonstration mechanism comprises a source of motive power kinematically connected by a control gear on the one hand to the return animation and on the other hand to a speed controller. Finally, this demonstration mechanism comprises a control member arming and releasing the source of motive power so that it causes the animation of the satellite gear of the differential gear to be driven by the angular value corresponding to a cycle of rotation. complete display of the movable display member before this source of motive power is again blocked at a standstill.

En marche normale de la pièce d'horlogerie, le mécanisme de démonstration est au repos, sa source d'énergie motrice étant bloquée, le renvoi d'animation est bloqué à l'arrêt et la prise de force du mouvement entraîne, par l'intermédiaire de l'engrenage différentiel, l'organe mobile d'affichage à la vitesse correspondant à la valeur à afficher, minutes, heures, quantième, jour de la semaine ou autre.In normal operation of the timepiece, the demonstration mechanism is at rest, its source of motive power being blocked, the animation return is blocked at a standstill and the power take-off of the movement causes, by the intermediate of the differential gear, the mobile display member at the speed corresponding to the value to be displayed, minutes, hours, date, day of the week or other.

Lorsque l'usager désire voir ou vérifier le fonctionnement de l'affichage de la pièce d'horlogerie, il presse sur l'organe de commande, ce qui arme puis libère la source d'énergie motrice provoquant l'entraînement du renvoi d'animation et donc du porte satellite de l'engrenage différentiel d'une valeur prédéterminée par ladite source d'énergie motrice correspondant à un cycle d'affichage de l'organe mobile d'affichage. L'organe de commande étant relâché, la source d'énergie motrice se bloque dans sa position de fin de cycle de démonstration.When the user wishes to see or check the operation of the display of the timepiece, it presses on the control member, which then arms releases the source of motive power causing the drive animation referral and therefore the satellite gate of the differential gear of a predetermined value by said source of motive power corresponding to a display cycle of the movable display member. With the control member released, the source of motive energy is locked in its end position of the demonstration cycle.

Ceci permet d'entraîner l'organe mobile de l'affichage dans un mode de démonstration pendant un cycle complet d'affichage à une vitesse de démonstration supérieure à sa vitesse de marche normale. L'usager peut donc visualiser un cycle d'affichage et vérifier que l'affichage fonctionne à satisfaction. De plus, la précision de l'affichage n'est pas influencée par son déplacement en mode de démonstration une fois que ce mode de démonstration a pris fin puisque le mouvement imposé à l'organe mobile d'affichage par le pignon d'animation s'ajoute au déplacement de l'organe mobile d'affichage provoqué par la prise de force du mouvement.This allows the movable member of the display to be driven in a demonstration mode during a complete display cycle at a demonstration speed greater than its normal operating speed. The user can therefore view a display cycle and verify that the display works to satisfaction. In addition, the accuracy of the display is not influenced by its displacement in demonstration mode once this demonstration mode has ended since the movement imposed on the mobile display member by the animation pinion s adds to the displacement of the movable display member caused by the power take-off.

On va maintenant décrire en détail une forme d'exécution particulière de la pièce d'horlogerie en référence aux figures 1 à 10 des dessins.We will now describe in detail a particular embodiment of the timepiece with reference to the Figures 1 to 10 drawings.

Cette pièce d'horlogerie comporte une boîte 1, un cadran 2, une couronne de remontoir 3 et un organe de commande formé par un poussoir 4 accessible de l'extérieur de la boîte 1. Cette pièce d'horlogerie comporte un mouvement d'horlogerie comportant un organe moteur, un rouage de finissage, un échappement, un organe réglant et au moins un affichage dont l'organe mobile est entraîné par une prise de force du mouvement. Cette pièce d'horlogerie comporte encore un affichage des heures rétrograde disposé à 6H comportant une graduation des heures 5 apposée sur le cadran 2 coopérant avec un pétale 6 d'une fleur rotative mise en action par le mouvement de la pièce d'horlogerie.This timepiece comprises a box 1, a dial 2, a winding crown 3 and a control member formed by a pusher 4 accessible from outside the box 1. This timepiece comprises a watch movement comprising a drive member, a work train, an escapement, a regulating member and at least one display whose movable member is driven by a power take-off. This timepiece also comprises a retrograde hours display disposed at 6H having a scale of hours 5 affixed to the dial 2 cooperating with a petal 6 of a rotating flower activated by the movement of the timepiece.

Dans cette pièce d'horlogerie, l'affichage des minutes est complexe et comporte sur le cadran une première graduation des minutes 7, de 0 à 30, coopérant avec un premier organe mobile d'affichage 8 en forme de papillon porté par un premier disque 9 rotatif des minutes.In this timepiece, the display of minutes is complex and comprises on the dial a first graduation minute 7, from 0 to 30, cooperating with a first movable display member 8 in the form of a butterfly carried by a first disc 9 rotating minutes.

Cet affichage des minutes comporte encore une seconde graduation des minutes 10, de 30 à 45 minutes, coopérant avec un second organe mobile d'affichage porté par un second disque 11 rotatif des minutes.This minute display further comprises a second graduation minutes 10, 30 to 45 minutes, cooperating with a second mobile display member carried by a second disk 11 rotating minutes.

Enfin, cet affichage des minutes comporte encore une troisième graduation des minutes 12, de 45 à 60 minutes, coopérant avec un troisième organe mobile d'affichage porté par un troisième disque 13 des minutes.Finally, this minute display further comprises a third graduation minute 12, 45 to 60 minutes, cooperating with a third mobile display member carried by a third disc 13 minutes.

Le mouvement de cette pièce d'horlogerie comporte, de façon classique, un organe moteur, par exemple un barillet, un rouage de finissage reliant ce barillet à un mobile d'échappement et un organe réglant. Le rouage de finissage comporte une roue des minutes dont l'axe 14 constitue la prise de force du mouvement pour l'affichage des minutes de la pièce d'horlogerie. Cet axe 14 porte le pignon de centre engrenant avec le barillet et est solidaire du premier planétaire 15 d'un engrenage différentiel.The movement of this timepiece comprises, in a conventional manner, a motor member, for example a barrel, a work train connecting this barrel to an escapement and a regulating member. The finishing gear comprises a minute wheel whose axis 14 constitutes the power take-off of the movement for displaying the minutes of the timepiece. This shaft 14 carries the center pinion meshing with the barrel and is secured to the first sun gear 15 of a differential gear.

Cet engrenage différentiel comporte encore un second planétaire 16 et un porte satellite 17, situé entre les deux planétaires 15,16, tous deux pivotés concentriquement à l'axe 14 constituant la prise de force de l'affichage des minutes. Un premier satellite 18 est solidaire et concentrique d'un second satellite 19 pivoté sur le porte satellite 17. Le porte satellite présente une denture externe 17.1 en prise avec un pignon d'animation 20 du mécanisme de démonstration.This differential gear further comprises a second sun gear 16 and a satellite gate 17, located between the two sun wheels 15, 16, both of which are concentrically pivoted to the axis 14 constituting the PTO of the minute display. A first satellite 18 is integral and concentric with a second satellite 19 pivoted on the satellite door 17. The satellite door has an external toothing 17.1 engaged with an animation pinion 20 of the demonstration mechanism.

Le premier satellite 18 engrène avec une denture extérieure 15.1 du premier planétaire 15 tandis que le second satellite 19 engrène avec une première denture 16.1 du second planétaire 16.The first satellite 18 meshes with an external toothing 15.1 of the first sun gear 15 while the second satellite 19 meshes with a first toothing 16.1 of the second sun gear 16.

Dans cet exemple, le second planétaire 16 est elliptique et constitue la roue de commande des trois disques des minutes 9,11 et 13.In this example, the second sun gear 16 is elliptical and constitutes the control wheel of the three disks of the minutes 9, 11 and 13.

Comme on le voit sur la figure 5 notamment, le second planétaire 16 comporte une seconde denture extérieure 16.2 engrenant avec un premier elliptique 21 entraînant une roue de premier affichage des minutes 22 portant le premier disque rotatif des minutes 9. Cette denture extérieure 16.2 du second planétaire 16 de l'engrenage différentiel engrène encore avec un second elliptique 23 entraînant une roue de second affichage des minutes 24 et une roue de troisième affichage des minutes 25. La roue de second affichage des minutes 24 porte le second disque rotatif des minutes 11 tandis que la roue de troisième affichage des minutes 25 porte le troisième disque rotatif des minutes 13.As we see on the figure 5 in particular, the second sun gear 16 has a second external toothing 16.2 meshing with a first elliptical 21 driving a first minute display wheel 22 carrying the first rotating disc minute 9. This external toothing 16.2 of the second sun gear 16 of the differential gear meshes still with a second elliptical 23 the second minute display wheel 24 and a third minute display wheel 25. The second minute display wheel 24 carries the second minute 11 rotary disc while the third minute display wheel 25 carries the third disc rotating minutes 13.

Les rapports d'engrenage de l'engrenage différentiel sont tels que lorsque le premier planétaire 15 effectue un tour complet, 360°, le second planétaire 16 effectue un demi-tour, soit 180°.The gear ratios of the differential gear are such that when the first sun gear 15 rotates one full 360 °, the second sun gear 16 makes a half turn, ie 180 °.

Par ailleurs, le rapport d'engrenage entre la seconde denture externe du second planétaire 16.2 et les roues de premier affichage 22, de second affichage 24 et de troisième affichage 25 des minutes est tel que lorsque le second planétaire 16 effectue un demi-tour, soit 180°, un cycle d'affichage complet des minutes de 0 à 60 soit effectué.Furthermore, the gear ratio between the second external toothing of the second sun gear 16.2 and the first display wheels 22, the second display 24 and the third display 25 minutes is such that when the second sun gear 16 makes a half turn, or 180 °, a complete display cycle of minutes from 0 to 60 is performed.

De cette façon, en fonctionnement normal de la pièce d'horlogerie, le porte satellite 17 de l'engrenage différentiel étant bloqué, une révolution complète de la prise de force 14 du mouvement correspond à un cycle complet d'affichage des minutes de 0 à 60.In this way, during normal operation of the timepiece, the satellite gate 17 of the differential gear being blocked, a complete revolution of the power take-off 14 of the movement corresponds to a complete cycle of minute display from 0 to 60.

Selon cette forme d'exécution la présence d'un engrenage différentiel entre la prise de force du mouvement 14, ici la chaussée, et la roue de commande de l'affichage des minutes, ici le second planétaire 16 de l'engrenage différentiel permet d'une part de modifier grâce à l'engrenage différentiel le nombre de tours de la prise de force 14 par unité de temps par rapport au nombre de tours par unité de temps du second planétaire 16 de l'engrenage différentiel en fonction des caractéristiques particulières de l'affichage commandé.According to this embodiment, the presence of a differential gearing between the power takeoff of the movement 14, here the roadway, and the control wheel of the minutes display, here the second sun gear 16 of the differential gearing makes it possible to on the one hand to modify, by means of the differential gearing, the number of revolutions of the power take-off 14 per time unit relative to the number of revolutions per unit time of the second sun gear 16 of the differential gearing according to the particular characteristics of the the ordered display.

D'autre part, cela permet, comme on le verra plus loin, de disposer d'une seconde entrée grâce au porte satellite de l'engrenage différentiel pour modifier la vitesse de parcours d'un cycle d'affichage notamment pour démontrer et vérifier le fonctionnement de l'affichage, ce qui est un avantage important pour les affichages complexes comme celui décrit plus haut.On the other hand, this allows, as will be seen later, to have a second input through the satellite gate of the differential gear to change the travel speed of a display cycle including to demonstrate and verify the operation of the display, which is an important advantage for complex displays like the one described above.

La pièce d'horlogerie illustrée aux figures 1 à 10 comporte encore un mécanisme de démonstration illustré plus en détail aux figures 9 et 10.The timepiece illustrated with Figures 1 to 10 still includes a demonstration mechanism illustrated in more detail in figures 9 and 10 .

Ce mécanisme de démonstration comporte une source d'énergie constituée, dans la forme d'exécution illustrée, par une roue dentée 30 pivotée sur une partie fixe du mouvement. Cette roue dentée 30 comporte une jante 31 munie de crans de verrouillage extérieurs 32 et d'autant d'encoches intérieures 33. Ces crans 32 et ces encoches 33 sont en nombre égal et uniformément répartis sur la circonférence de ladite jante 31, dans le cas illustré ils sont au nombre de cinq séparés chacun de 72°. Cette source d'énergie comporte encore un entraîneur 34 pivoté coaxialement à la roue dentée 30 comportant une goupille 35 et une lame ressort 29 se terminant par un organe de poussée 29.1 coopérant avec les encoches intérieures 33.This demonstration mechanism comprises a power source constituted, in the illustrated embodiment, by a gear wheel 30 pivoted on a fixed part of the movement. This toothed wheel 30 comprises a rim 31 provided with external locking notches 32 and as many internal notches 33. These notches 32 and these notches 33 are equal in number and uniformly distributed over the circumference of said rim 31, in the case illustrated they are five in number each separated by 72 °. This energy source further comprises a driver 34 pivoted coaxially with the toothed wheel 30 comprising a pin 35 and a spring blade 29 ending in a pushing member 29.1 cooperating with the internal notches 33.

La source d'énergie comporte encore un ressort d'actionnement 36 dont l'extrémité s'appuie sur la goupille 35 tendant à faire tourner l'entraîneur 34 dans le sens contraire aux aiguilles d'une montre.The energy source further comprises an actuating spring 36 whose end rests on the pin 35 tending to rotate the driver 34 in the counterclockwise direction.

Le mécanisme de démonstration comporte encore une bascule 37 pivotée par une extrémité sur une partie fixe du mouvement et dont l'extrémité libre comporte une fente 38 dans laquelle est engagé un doigt 39 solidaire de l'entraîneur 34. Cette bascule 37 est soumise à l'action d'un ressort de rappel 40 tendant à la déplacer dans le sens des aiguilles d'une montre jusque dans sa position de repos illustrée à la figure 9. Cette bascule 37 est commandée par l'organe de commande 4 de la pièce d'horlogerie.The demonstration mechanism further comprises a rocker 37 pivoted by one end on a fixed part of the movement and whose free end comprises a slot 38 in which is engaged a finger 39 integral with the coach 34. This rocker 37 is subject to the action of a return spring 40 tending to move it clockwise to its rest position illustrated in FIG. figure 9 . This flip-flop 37 is controlled by the control member 4 of the timepiece.

Un cliquet de verrouillage 41 est pivoté sur l'extrémité libre de la bascule 37 et est soumis à l'action d'un ressort de cliquet 42 tendant à le déplacer en direction de la roue dentée 30.A latch pawl 41 is pivoted on the free end of the latch 37 and is subjected to the action of a pawl spring 42 tending to move it towards the toothed wheel 30.

L'extrémité de ce cliquet de verrouillage 41 est conformée de manière à coopérer avec les crans de verrouillage 32 de la roue dentée 30 pour verrouiller celle-ci en position de repos (figure 9). Ce cliquet de verrouillage 41 comporte encore une goupille de cliquet 42 coopérant, comme on le verra plus loin, avec un dard 43 que comporte l'extrémité de la bascule 37. Le cliquet de verrouillage 41 est maintenu en appui contre la périphérie de la jante 31 de la roue dentée par un ressort de cliquet 44.The end of this locking pawl 41 is shaped so as to cooperate with the locking notches 32 of the toothed wheel 30 to lock it in the rest position ( figure 9 ). This locking pawl 41 further includes a pawl pin 42 cooperating, as will be seen later, with a 43 which includes the end of the latch 37. The locking pawl 41 is held in abutment against the periphery of the rim 31 of the toothed wheel by a pawl spring 44.

La denture extérieure de la roue dentée 30 de la source d'énergie est en prise avec le pignon d'un mobile d'entraînement 45 dont la roue engrène avec le renvoi d'animation 20 qui est en prise avec la denture externe 17.1 du porte satellite 17 de l'engrenage différentiel.The external toothing of the gearwheel 30 of the power source is engaged with the pinion of a drive wheel 45 whose wheel meshes with the animation gear 20 which is engaged with the external toothing 17.1 of the door satellite 17 of the differential gear.

La roue du mobile d'entraînement 45 est également en prise avec le pignon du premier mobile de réduction 46.1 d'une chaîne de réduction comportant trois mobiles de réduction 46.1, 46.2 et 46.3. Le pignon du troisième mobile de réduction 46.3 est en prise avec un volant d'inertie 47.The wheel of the driving wheel 45 is also engaged with the gear of the first reduction wheel 46.1 of a reduction chain comprising three reduction mobiles 46.1, 46.2 and 46.3. The pinion of the third reduction wheel 46.3 is engaged with a flywheel 47.

Ce mécanisme de démonstration et l'engrenage différentiel sont conçus de telle façon que le rapport de démultiplication de la chaîne cinématique reliant la roue dentée 30 de la source d'énergie au second planétaire 16 de l'engrenage différentiel est tel qu'une rotation de 72° de la roue dentée 30, soit d'une de ses positions d'arrêt à la suivante, provoque un déplacement du ou des organes mobiles de l'affichage équivalent à un cycle d'affichage complet, ici de 0 à 60 minutes, mais en un temps réduit par exemple de l'ordre de 5 à 60 secondes, de préférence compris entre 10 et 20 secondes.This demonstration mechanism and the differential gear are designed such that the gear ratio of the drive train connecting the gear wheel 30 of the energy source to the second sun gear 16 of the differential gear is such that a rotation of 72 ° of the toothed wheel 30, or from one of its stop positions to the next, causes displacement of the movable member (s) of the display equivalent to a complete display cycle, here from 0 to 60 minutes, but in a reduced time for example of the order of 5 to 60 seconds, preferably between 10 and 20 seconds.

Le fonctionnement du mécanisme de démonstration est le suivant : à partir de sa position de repos illustrée à la figure 9, l'usager pousse l'organe de commande 4 faisant basculer la bascule 37 dans le sens anti-horaire. L'extrémité libre de cette bascule entraîne le doigt 39 et donc l'entraîneur 34 contre l'action du ressort d'actionnement 36 jusqu'à ce que l'organe de poussée 29.1 de la lame ressort 29 de l'entraîneur 34 vienne s'encliqueter dans une encoche 33 de la roue dentée 30. A ce moment, le dard 43 de la bascule 37 pousse le cliquet 41 contre son ressort de cliquet 44 et le dégage du cran de verrouillage 32 de la roue dentée 30 dans lequel il est engagé. Le mécanisme de démonstration se trouve alors en position armée illustrée à la figure 10.The operation of the demonstration mechanism is as follows: from its rest position illustrated in figure 9 , the user pushes the control member 4 tilting the rocker 37 in the counterclockwise direction. The free end of this rocker drives the finger 39 and therefore the driver 34 against the action of the actuating spring 36 until the push member 29.1 of the blade spring 29 of the coach 34 comes s snap into a notch 33 of the toothed wheel 30. At this moment, the stinger 43 of the lever 37 pushes the pawl 41 against its pawl spring 44 and releases the locking notch 32 of the toothed wheel 30 in which it is engaged. The demonstration mechanism is then in the armed position illustrated in the figure 10 .

Lorsque l'usager lâche l'organe de commande 4, la roue dentée 30 est libérée, la bascule 37 retourne en position de repos, le cliquet 41 s'appuie à nouveau contre la périphérie de la jante 31 de la roue dentée 30. La roue dentée 30 est entraînée dans le sens anti-horaire par l'organe de poussée 29.1 de l'entraîneur 34 soumis à l'action du ressort d'actionnement par sa lame ressort 36 jusqu'au moment où le cliquet 41 retombe dans l'encoche de verrouillage suivante 32 de la roue dentée 30.When the user releases the control member 4, the toothed wheel 30 is released, the latch 37 returns to the rest position, the pawl 41 rests against the periphery of the rim 31 of the toothed wheel 30. toothed wheel 30 is driven in the counterclockwise direction by the push member 29.1 of the driver 34 subjected to the action of the actuating spring by its leaf spring 36 until the pawl 41 falls back into the next locking notch 32 of the gear wheel 30.

Pour chaque actionnement de l'organe de commande 4, la roue dentée 30 effectue donc un déplacement angulaire prédéterminé, 72° dans l'exemple illustré, correspondant à un cycle complet de l'organe ou des organes mobiles de l'affichage de la pièce d'horlogerie grâce au mobile d'entraînement 45, du renvoi d'animation 20 et de l'engrenage différentiel.For each actuation of the control member 4, the toothed wheel 30 thus performs a predetermined angular displacement, 72 ° in the illustrated example, corresponding to a complete cycle of the member or movable members of the display of the workpiece timepiece thanks to the driving wheel 45, the animation return 20 and the differential gear.

Il faut noter que ce cycle de démonstration de l'affichage vient s'ajouter au déplacement normal du ou des organes mobiles de l'affichage commandé par le premier planétaire de l'engrenage différentiel, de sorte que le cycle de démonstration de l'affichage ne perturbe pas l'indication délivrée par l'affichage en dehors des périodes de démonstration. Pendant un cycle de démonstration de l'affichage, le ou les organes mobiles de l'affichage sont entraînés par l'addition du mouvement dû à la prise de force 14 et du mouvement dû au mécanisme de démonstration.It should be noted that this display demonstration cycle is in addition to the normal displacement of the movable member (s) of the display controlled by the first sun gear of the differential gear, so that the display demonstration cycle does not disturb the indication delivered by the display outside the demonstration periods. During a demonstration cycle of the display, the movable member (s) of the display are driven by the addition of the movement due to the power take-off 14 and the movement due to the demonstration mechanism.

Dans des variantes du mécanisme de démonstration, la vitesse du mouvement de démonstration de l'affichage peut être régulée non pas par un volant d'inertie mais par un régulateur centrifuge ou tout autre régulateur. De même, la source d'énergie peut être réalisée différemment par un barillet ou autre dispositif pour autant que la roue dentée 30 soit entraînée à chaque actionnement de l'organe de commande 4 d'une valeur angulaire qui , compte tenu de la chaîne cinématique la reliant à l'organe mobile d'affichage, fasse parcourir à cet organe mobile d'affichage un cycle complet d'affichage.In variants of the demonstration mechanism, the speed of the demonstration movement of the display can be regulated not by a flywheel but by a centrifugal governor or any other regulator. Similarly, the energy source can be made differently by a barrel or other device provided that the gear wheel 30 is driven at each actuation of the control member 4 by an angular value which, taking into account the kinematic chain connecting it to the mobile display member, make travel to this mobile display member a complete display cycle.

Dans ce qui précède, l'invention a été décrite en rapport avec un affichage des minutes complexe d'une pièce d'horlogerie. Bien entendu, n'importe quel affichage, simple ou complexe, d'une pièce d'horlogerie tel que par exemple un affichage horaire, un quantième, un jour de semaine, une phase de lune, peut être entraîné dans un mode de démonstration plus rapide et coup par coup sur un cycle complet de l'affichage envisagé à l'aide du mécanisme selon l'invention. Ce mécanisme comprend de préférence un engrenage différentiel dont le premier planétaire est relié cinématiquement à la prise de force du mouvement et dont le second planétaire est relié cinématiquement à l'organe mobile de l'affichage envisagé. Ce mécanisme comprend encore un mécanisme de démonstration apte à entraîner le porte satellite de l'engrenage différentiel, pour chaque actionnement, d'une valeur correspondant à un cycle d'affichage complet de la valeur affichée.In the foregoing, the invention has been described in connection with a complex minute display of a timepiece. Of course, any display, simple or complex, of a timepiece such as for example a time display, a date, a weekday, a moon phase, can be driven in a more demonstration mode fast and piecemeal over a complete cycle of the envisaged display using the mechanism according to the invention. This mechanism preferably comprises a differential gear, the first sun gear is kinematically connected to the power take-off of the movement and the second sun gear is kinematically connected to the movable member of the envisaged display. This mechanism also comprises a demonstration mechanism capable of driving the satellite gate of the differential gear, for each actuation, by a value corresponding to a complete display cycle of the displayed value.

A titre d'exemple, la figure 11 illustre l'objet de l'invention utilisé pour entraîner en mode démonstration un affichage simple.For example, the figure 11 illustrates the object of the invention used to drive in demonstration mode a simple display.

Le second planétaire 16 de l'engrenage différentiel porte un axe 50 portant une aiguille 52, organe mobile d'un affichage de la pièce d'horlogerie.The second sun gear 16 of the differential gear carries an axis 50 carrying a needle 52, a movable member of a display of the timepiece.

Dans une telle exécution, l'engrenage différentiel est conçu de manière à ce que lorsque le porte satellite 17 est bloqué, le second planétaire 16 tourne à la même vitesse que le premier planétaire 15 qui est entraîné par la prise de force 14 du mouvement d'horlogerie.In such an embodiment, the differential gear is designed so that when the satellite gate 17 is blocked, the second sun gear 16 rotates at the same speed as the first sun gear 15 which is driven by the power take-off 14 of the movement. watchmaking.

L'aiguille 52 de l'affichage peut être entraînée dans un mode de démonstration à une vitesse rapide pour un cycle complet par un mécanisme de démonstration entraînant le renvoi d'animation 20 qui est en prise avec le porte satellite 17 du différentiel.The display hand 52 may be driven into a demonstration mode at a fast speed for a complete cycle by a demonstration mechanism causing the animation referral 20 which is engaged with the satellite gate 17 of the differential.

Dans une variante l'aiguille 52 peut être l'aiguille des minutes d'un affichage horaire. L'axe de cette aiguille des minutes est entraîné par le second planétaire 16 de l'engrenage différentiel et est relié par une minuterie classique à une aiguille des heures coordonnée à l'aiguille des minutes. Dans ce cas un cycle complet de l'affichage horaire dure douze ou vingt-quatre heures à la vitesse d'affichage normal mais à chaque actionnement de l'organe de commande ce cycle d'affichage peut être parcouru en quelques dizaines de secondes, l'aiguille des heures effectuant un tour complet tandis que l'aiguille des minutes effectue douze respectivement vingt-quatre tours.In a variant, the needle 52 may be the minute hand of a time display. The axis of this minute hand is driven by the second sun gear 16 of the differential gear and is connected by a conventional timer to an hour hand coordinated with the minute hand. In this case a full cycle of the time display lasts twelve or twenty-four hours at the display speed normal but each actuation of the control member this display cycle can be traveled in a few tens of seconds, the hour hand performing a complete turn while the minute hand performs twelve respectively twenty-four turns.

Dans le cas où l'affichage est une indication du quantième, l'organe mobile de cet affichage peut être une couronne de quantième.In the case where the display is an indication of the date, the movable member of this display may be a date crown.

Dans le cas où l'affichage est une indication du jour de la semaine, l'organe mobile de cet affichage peut être un disque des jours, portant le nom des jours de la semaine.In the case where the display is an indication of the day of the week, the mobile organ of this display can be a disc of days, bearing the name of the days of the week.

De préférence, l'organe mobile d'affichage est relié cinématiquement au second planétaire 16 de l'engrenage différentiel et la prise de force 14 du mouvement, correspondant à cet affichage, est reliée cinématiquement au premier planétaire 15 de l'engrenage différentiel.Preferably, the mobile display member is kinematically connected to the second sun gear 16 of the differential gear and the power take-off 14 corresponding to this display is kinematically connected to the first sun gear 15 of the differential gear.

Dans tous les cas le mécanisme de démonstration permet, pour chaque actionnement d'un organe de commande 4 accessible de l'extérieur de la boîte 1 de la pièce d'horlogerie, d'entraîner le porte satellite 17 de l'engrenage différentiel dans un déplacement angulaire correspondant à un cycle complet du ou des organes mobiles d'affichage à une vitesse supérieure à celle de la marche normale de l'affichage.In all cases the demonstration mechanism allows, for each actuation of a control member 4 accessible from outside the box 1 of the timepiece, to drive the satellite gate 17 of the differential gear in a angular displacement corresponding to a complete cycle of the mobile display member (s) at a speed greater than that of the normal operation of the display.

Pour un affichage des minutes, la durée du cycle complet d'affichage en marche normale est de soixante minutes et en mode démonstration de dix à trente secondes, par exemple.For a display of minutes, the duration of the complete display cycle in normal operation is sixty minutes and in demonstration mode from ten to thirty seconds, for example.

Claims (13)

Pièce d'horlogerie comportant une boîte (1) logeant un mouvement comprenant un organe moteur, un rouage de finissage, un échappement, un organe réglant et un affichage comprenant au moins un organe mobile (8; 52), caractérisée par le fait qu'elle comporte un mécanisme de démonstration provoquant à chaque actionnement d'un organe de commande (4), accessible de l'extérieur de la boîte (1), l'entraînement de l'organe mobile (8; 52) d'une valeur angulaire correspondant à un cycle complet de ce dernier à une vitesse supérieure à celle du fonctionnement normal de l'affichage, tout en n'affectant pas la précision de l'affichage une fois que le déplacement de l'organe mobile à cette vitesse de démonstration supérieure prend fin.Timepiece comprising a box (1) housing a movement comprising a drive member, a work train, an escapement, a regulating member and a display comprising at least one movable member (8; 52), characterized in that it comprises a demonstration mechanism causing each actuation of a control member (4) accessible from the outside of the box (1), driving the movable member (8; 52) of an angular value corresponding to a complete cycle of the latter at a speed greater than that of the normal operation of the display, while not affecting the accuracy of the display once the displacement of the movable member at this higher demonstration speed ends. Pièce d'horlogerie selon la revendication 1, caractérisée par le fait qu'elle comporte un engrenage différentiel qui permet d'ajouter le déplacement imposé à l'organe mobile d'affichage par le mécanisme de démonstration au déplacement de l'organe mobile d'affichage provoqué par une prise de force du mouvement.Timepiece according to claim 1, characterized in that it comprises a differential gear which makes it possible to add the displacement imposed on the mobile display member by the demonstration mechanism to the displacement of the movable member. display caused by a power take-off. Pièce d'horlogerie selon la revendication 2, caractérisée par le fait que l'engrenage différentiel comprend un premier planétaire (15) qui est relié cinématiquement à la prise de force (14) du mouvement; un second planétaire (16) qui est relié cinématiquement à l'organe mobile (8; 52) de l'affichage; et un porte satellite (17) qui est relié cinématiquement au mécanisme de démonstration.Timepiece according to claim 2, characterized in that the differential gear comprises a first sun gear (15) which is kinematically connected to the power take-off (14) of the movement; a second sun gear (16) which is kinematically connected to the movable member (8; 52) of the display; and a satellite gate (17) which is kinematically connected to the demonstration mechanism. Pièce d'horlogerie selon la revendication 3, caractérisée par le fait que l'affichage est un affichage des minutes comportant un organe mobile d'affichage (52) sous forme d'une aiguille portée par un axe (50) solidaire du second planétaire (16) de l'engrenage différentiel ; et par le fait que la prise de force (14) du mouvement, solidaire du et coaxiale au premier planétaire (15) de l'engrenage différentiel, est la chaussée du mouvement ou l'axe de la roue de centre du mouvement.Timepiece according to claim 3, characterized in that the display is a minute display comprising a movable display member (52) in the form of a needle carried by an axis (50) integral with the second sun gear ( 16) of the differential gear; and in that the power take-off (14) of the movement, secured to and coaxial with the first sun gear (15) of the differential gear, is the roadway of the movement or the axis of the center-of-motion wheel. Pièce d'horlogerie selon la revendication 3, caractérisée par le fait que l'affichage est un affichage des minutes comportant trois organes mobiles d'affichage (9,11,13) sous forme de disques reliés cinématiquement au second planétaire (16) de l'engrenage différentiel ; et par le fait que la prise de force (14) du mouvement, solidaire et coaxiale au premier planétaire de l'engrenage différentiel (15), est la chaussée du mouvement.Timepiece according to claim 3, characterized in that the display is a minute display comprising three movable display members (9,11,13) in the form of disks kinematically connected to the second sun gear (16) of the differential gear; and in that the power take-off (14) of the movement, integral and coaxial with the first sun gear of the differential gear (15), is the road surface of the movement. Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée par le fait que la durée normale d'un cycle d'affichage est de soixante minutes et que la durée de parcours du cycle complet d'affichage en mode démonstration est compris entre 5 et 60 secondes, de préférence entre 10 et 20 secondes.Timepiece according to one of the preceding claims, characterized in that the normal duration of a display cycle is sixty minutes and the running time of the complete display cycle in demonstration mode is between 5 minutes. and 60 seconds, preferably between 10 and 20 seconds. Pièce d'horlogerie selon l'une des revendications 1 à 3, caractérisée par le fait que l'affichage est un affichage du quantième dont l'organe mobile d'affichage est une couronne de quantième.Timepiece according to one of claims 1 to 3, characterized in that the display is a calendar display which the mobile display member is a calendar crown. Pièce d'horlogerie selon l'une des revendications 1 à 3, caractérisée par le fait que l'affichage est un affichage du jour de la semaine dont l'organe mobile est un disque portant le nom des jours.Timepiece according to one of claims 1 to 3, characterized in that the display is a display of the day of the week whose moving member is a disc bearing the name of the days. Pièce d'horlogerie selon l'une des revendications 3 à 8, caractérisée par le fait que le mécanisme de démonstration comporte une source d'énergie (30,34,36) armée et libérée par une bascule (37) actionnée par l'organe de commande (4) ; et par le fait que cette source d'énergie est reliée cinématiquement par un mobile d'entraînement (45), d'une part, à un pignon d'animation (20) en prise avec une denture externe (17.1) du porte satellite (17) de l'engrenage différentiel et, d'autre part, à un régulateur de vitesse (47) par une chaîne de démultiplication (46.1, 46.2, 46.3).Timepiece according to one of claims 3 to 8, characterized in that the demonstration mechanism comprises a source of energy (30,34,36) armed and released by a rocker (37) actuated by the organ control (4); and in that this energy source is kinematically connected by a drive wheel (45), on the one hand, to an animation gear (20) engaged with an external toothing (17.1) of the satellite carrier ( 17) of the differential gear and, secondly, to a speed controller (47) by a reduction chain (46.1, 46.2, 46.3). Pièce d'horlogerie selon la revendication 9, caractérisée par le fait que la source d'énergie (30,34,36) du mécanisme de démonstration comporte une roue dentée (30) comportant des encoches (33) et des crans de verrouillage (32) uniformément répartis le long de sa périphérie ; que le nombre d'encoches (33) est égal au nombre de crans de verrouillage (32) ; et que cette source d'énergie comporte encore un entraîneur (34), pivoté concentriquement à la roue dentée (30) présentant une goupille (35) soumise à l'action d'un ressort d'entraînement (36) ; cet entraîneur (34) comportant une lame ressort (29) se terminant par un organe de poussée (29.1) coopérant avec les encoches (33) de la roue dentée.Timepiece according to Claim 9, characterized in that the energy source (30, 34, 36) of the demonstration mechanism comprises a toothed wheel (30) comprising notches (33) and locking notches (32). ) uniformly distributed along its periphery; the number of notches (33) is equal to the number of locking notches (32); and that said energy source further comprises a driver (34), concentrically pivoted to the toothed wheel (30) having a pin (35) subjected to the action of a driving spring (36); this driver (34) comprising a spring blade (29) ending in a thrust member (29.1) cooperating with the notches (33) of the toothed wheel. Pièce d'horlogerie selon la revendication 10, caractérisée par le fait que l'extrémité de la bascule (37) comporte une fente (38) dans laquelle est engagé un doigt (39) de l'entraîneur (34) ; un cliquet (41) pivoté sur l'extrémité libre de ladite bascule (37) et soumis à l'action d'un ressort de cliquet (44) tend à être appliqué contre la périphérie d'une jante (31) de la roue dentée et coopère avec les crans de verrouillage (32) de cette roue dentée (30).Timepiece according to claim 10, characterized in that the end of the rocker (37) comprises a slot (38) in which is engaged a finger (39) of the driver (34); a ratchet (41) pivoted on the free end of said latch (37) and subjected to the action of a pawl spring (44) tends to be applied against the periphery of a rim (31) of the toothed wheel and cooperates with the notches locking (32) of this toothed wheel (30). Pièce d'horlogerie selon la revendication 11, caractérisée par le fait que lorsque l'organe de commande (4) est actionné, la fente (38) de la bascule (37) pousse le doigt (39) de l'entraîneur (34) et arme celui-ci contre le ressort d'actionnement (36), puis en fin de course de la bascule (37) un dard (43) de celle-ci dégage le cliquet (41) du cran de verrouillage (32) libérant la roue dentée (30).Timepiece according to claim 11, characterized in that when the control member (4) is actuated, the slot (38) of the rocker (37) pushes the finger (39) of the driver (34) and arms it against the actuating spring (36), then at the end of travel of the rocker (37) a stinger (43) thereof releases the pawl (41) of the locking catch (32) releasing the gear wheel (30). Pièce d'horlogerie selon la revendication 12, caractérisée par le fait que le pas de la roue dentée entre deux positions de blocage successives par le cliquet (41) provoque par le mobile d'actionnement (45), le renvoi d'animation (20) et l'engrenage différentiel (15, 16, 18), le déplacement du ou des organes mobiles d'affichage correspondant à un cycle d'affichage complet.Timepiece according to claim 12, characterized in that the pitch of the toothed wheel between two successive locking positions by the pawl (41) causes the actuating wheel (45), the animation (20) ) and the differential gear (15, 16, 18), the displacement of the movable display member or members corresponding to a complete display cycle.
EP15177593.9A 2014-09-08 2015-07-21 Timepiece Active EP2993533B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01351/14A CH710086A1 (en) 2014-09-08 2014-09-08 Timepiece including a mechanism for demonstration.

Publications (2)

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EP2993533A1 true EP2993533A1 (en) 2016-03-09
EP2993533B1 EP2993533B1 (en) 2017-03-08

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CH (1) CH710086A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH711851A1 (en) * 2015-12-02 2017-06-15 Sellita Watch Co S A Bidirectional drive spring for timepiece.
CH714682A1 (en) * 2018-02-27 2019-08-30 Concepto Holding Sa Movable mechanism of a protuberant decorative figure.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR766378A (en) * 1932-12-13 1934-06-27 Globe with an illuminated hemisphere rotating automatically
CH270584A (en) * 1948-01-12 1950-09-15 Blanc Huguenin Ali Geographic time dial.
CH693155A5 (en) * 1998-11-04 2003-03-14 Andreas Strehler Timepiece display mechanism has single display organ switched between alternate display modes
CH706208A2 (en) * 2012-03-07 2013-09-13 Louis Vuitton Malletier Sa Movement for regatta watch, has arming element arming auxiliary function, where movement is arranged to store part of energy necessary to execute auxiliary function, in deformable element, and to gradually restore energy during execution

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR766378A (en) * 1932-12-13 1934-06-27 Globe with an illuminated hemisphere rotating automatically
CH270584A (en) * 1948-01-12 1950-09-15 Blanc Huguenin Ali Geographic time dial.
CH693155A5 (en) * 1998-11-04 2003-03-14 Andreas Strehler Timepiece display mechanism has single display organ switched between alternate display modes
CH706208A2 (en) * 2012-03-07 2013-09-13 Louis Vuitton Malletier Sa Movement for regatta watch, has arming element arming auxiliary function, where movement is arranged to store part of energy necessary to execute auxiliary function, in deformable element, and to gradually restore energy during execution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH711851A1 (en) * 2015-12-02 2017-06-15 Sellita Watch Co S A Bidirectional drive spring for timepiece.
CH714682A1 (en) * 2018-02-27 2019-08-30 Concepto Holding Sa Movable mechanism of a protuberant decorative figure.

Also Published As

Publication number Publication date
EP2993533B1 (en) 2017-03-08
CH710086A1 (en) 2016-03-15

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