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EP3798740B1 - Timepiece display mechanism with multi-track guiding - Google Patents

Timepiece display mechanism with multi-track guiding Download PDF

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Publication number
EP3798740B1
EP3798740B1 EP19199581.0A EP19199581A EP3798740B1 EP 3798740 B1 EP3798740 B1 EP 3798740B1 EP 19199581 A EP19199581 A EP 19199581A EP 3798740 B1 EP3798740 B1 EP 3798740B1
Authority
EP
European Patent Office
Prior art keywords
roller
trajectory
component
positioning
rolling track
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19199581.0A
Other languages
German (de)
French (fr)
Other versions
EP3798740A1 (en
Inventor
Cédric Reymond
Alain Delizee
Robin Rusterholz
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.)
Blancpain SA
Original Assignee
Blancpain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blancpain SA filed Critical Blancpain SA
Priority to EP19199581.0A priority Critical patent/EP3798740B1/en
Publication of EP3798740A1 publication Critical patent/EP3798740A1/en
Application granted granted Critical
Publication of EP3798740B1 publication Critical patent/EP3798740B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/228—Arrangements for indicating different local apparent times; Universal time pieces with linear time graduation

Definitions

  • the invention relates to a mechanism for positioning and adjusting a mobile clockwork component in a reciprocating movement along a limited stroke.
  • the invention also relates to a timepiece display mechanism, comprising such a positioning and adjustment mechanism.
  • the invention also relates to a timepiece movement comprising at least one such display mechanism, and/or such a positioning and adjustment mechanism.
  • the invention also relates to a watch comprising such a movement, and/or at least such a display mechanism, and/or such a positioning and adjustment mechanism.
  • the invention relates to the field of timepiece display mechanisms, and in particular complication display mechanisms, in particular for watches.
  • the display function in watchmaking is essential, because it defines the physiognomy of the watch, personalizes it, and strongly influences the purchasing decision.
  • Displays with concentric discs are known, which are readable, at least as long as there are few time values to display, for example hour and minute; the situation becomes more complicated in the case where three displays are considered distinct or more, due to readability which decreases as the number of discs increases.
  • the documents FR1034691A And FR1242819A describe mechanisms for positioning and adjusting watch components in reciprocating movements, according to the preamble of claim 1.
  • the invention proposes to provide an original display which remains very readable, and which allows high customization, in particular due to particular shapes or arrangements specific to a given watch brand, by running a very readable display along a trajectory of particular shape.
  • This trajectory can be complex, and be traversed by the display in different directions, over different portions of the total trajectory.
  • the invention relates to a mechanism for positioning and adjusting a mobile clockwork component in a reciprocating movement along a limited stroke, according to claim 1.
  • Preferred embodiments are defined in the dependent claims. .
  • the invention also relates to a timepiece display mechanism, comprising such a positioning and adjustment mechanism.
  • the invention also relates to a timepiece movement comprising at least one such display mechanism, and/or such a positioning and adjustment mechanism.
  • the invention also relates to a watch comprising such a movement, and/or at least such a display mechanism, and/or such a positioning and adjustment mechanism.
  • the invention relates to a clockwork display mechanism 1, arranged to produce a complex display by allowing the movement of at least one mobile on a plurality of elementary tracks, constituting together end to end a global track, which this mechanism comprises. display 1.
  • the display mechanism 1 conventionally includes a first driving wheel set 2, which is arranged to be driven by a clock movement or by a drive mechanism.
  • This first drive mobile 2 comprises first drive means 3, which are arranged to cause a portable carriage 4 carrying a display 5 to advance along at least part of a first trajectory T1 defined by first guide means 6.
  • first guide means 6 are arranged to cooperate in a complementary manner with complementary guide means 7 that the sliding carriage 4 comprises.
  • complementary guide means 7 can be constituted by a suitably shaped end of a shaft 41 that portable trolley 4, or, as seen on the figure 2 , by guide rollers 42, 43, mounted free to rotate on this sliding carriage 4, or other.
  • This portable trolley 4 is arranged to drive or to carry a display 5. In the non-limiting variant illustrated by the figures, the portable trolley 4 directly carries such a display 5.
  • the display mechanism 1 comprises at least one second drive wheel 20, which is arranged to be driven by the first drive wheel 2, or by a clock movement or by a drive mechanism.
  • this second mobile drive 20 comprises second drive means 30, which are arranged to advance a trolley, and in particular the trolley 4, according to at least a part of a second trajectory T2 defined by second guide means 60.
  • These second guide means 60 are arranged to cooperate in a complementary manner with complementary guide means of a portable trolley, and in particular with complementary guide means 7 of portable trolley 4.
  • the second trajectory T2 is secant or tangent at at least one point with the first trajectory T1.
  • the figures illustrate an application where the trolley 4 circulates successively on all or part of the first trajectory T1, and on all or part of the second trajectory T2. Naturally, it is possible to juxtapose a greater number of trajectories, to cause the display 5 to circulate along a complex curve, according to the principles described below.
  • the first drive means 3, and the second drive means 30, each comprise at least one elastic blade 31, respectively 310, which is arranged to hold without play a shaft 41 that comprises the sliding carriage 4, when the sliding carriage 4 circulates on only one of the first trajectory T1 and second trajectory T2.
  • This at least one elastic blade 31, 310 is further arranged to allow the release of this shaft 41, for a transfer of the trolley 4 from the first trajectory T1 to the second trajectory T2, or vice versa, at a junction zone T0 constituting the interface between the first trajectory T1 and the second trajectory T2.
  • THE figures 1 to 4 illustrate, in a non-limiting way, an example in which such a trolley 4 is driven along a predefined trajectory in the shape of a figure eight: this figure eight constitutes the overall track, which results from the juxtaposition in external tangency, at the level of the junction zone T0, a first substantially circular track T1, which comprises the first guide means 6, and a second substantially circular track T2, which comprises the second guide means 60.
  • These first guide means 6 and second guide means 60 may in particular comprise at least one guide groove machined in a plate 900 or a bridge, as shown in the figures, or at least one projecting rail, integrated or attached to this plate or this bridge, or even a combination of such rails and /or grooves.
  • the first drive means 3, and/or the second drive means 30, comprise a fork comprising at least one elastic blade 31, 310.
  • the fork illustrated by the figures comprises a first lip 32 and a second lip 33 secured to the mobile drive 2, 20, concerned, and between which extends an elastic strip 31, 310, separated from the lips by cutouts 34, 35; this elastic blade 31, 310, can be integral with the drive wheel set 2 as in the figures, or be attached, such as a leaf spring fixed cantilevered on the drive wheel set 2, 20.
  • One of the lips 32, 33 comprises a first support lip 37, arranged to clamp the shaft 41 of the sliding carriage 4 in the manner of a clamp, in cooperation with a second support lip 36 that comprises the elastic blade 31, 310 at its distal end .
  • the bearing lip of the first support beak 37 advantageously comprises at least one boss 38, arranged to limit the angular travel of the elastic blade 31, 310.
  • the elasticity of the elastic blade 31, 310 is sufficient to allow an angular travel allowing the shaft 41 to escape this fork, when it arrives in the junction zone T0, and its transfer to an antagonist fork.
  • the mechanism in fact comprises two such forks with elastic blades, rotating in opposite directions, one fixed to the first mobile drive 2, the other to the second mobile drive 20.
  • the shaft 41 of the sliding carriage 4 is pinched by one of the forks during its travel on one of the trajectories T1, T2, and is pressed against the outside of the corresponding guide groove, thanks to the V-shape of the fork, and is driven by the latter.
  • the two forks are synchronized so as to overlap at the level of the junction zone T0, when the sliding carriage 4 has finished its course on one of the trajectories, here a rotation according to a circle, and returns to the junction zone T0 between the first trajectory T1 to the second trajectory T2, for example at the center of the movement as illustrated.
  • the shaft 41 of the sliding carriage 4 is transferred from one fork to another, thanks to a transfer mechanism with a slider system which will be explained later, and can then be driven by the second fork for its race on the second trajectory T2, here a lap of a second circle.
  • FIG. 3 shows the mechanism just after the transfer, when the fork of the second mobile drive 20 grips the shaft 41 of the sliding carriage 4, with the fork of the first mobile drive 2 which is empty and has just released this shaft 41; we see on this picture 3 , above the sliding carriage 4, a slider 8 which is movable substantially in the direction of tangency, in a junction zone T0, between the first trajectory T1 and the second trajectory T2, and which comprises a cam track 9 intended to guide the additional guide means 7 included in the trolley 4, for its change of track and to allow its travel on the new trajectory.
  • FIG 4 illustrates the reverse synchronization of the first drive wheel 2, carried by a first drive wheel 39, and the second drive wheel 20, carried by a second drive wheel 390, through a reverse gear train 300.
  • this gear train can be arranged with an adequate reduction to manage the cooperation of different trajectories T1 and T2, for example with an overall figure-of-eight trajectory resulting from the cooperation of a small circle with a larger circle.
  • This mechanism thus allows the driving of a transmissible element, here the portable trolley 4, it allows the transfer of this element, and ensures the stability of this portable trolley 4.
  • the invention also relates to a mechanism 100 for positioning and guiding the positioning and adjustment of a mobile clockwork component 8 in a reciprocating movement according to a limited stroke, along a trajectory imposed by means guide, relative to a fixed structure 200 of a timepiece, such as a plate 900, a bridge, or the like.
  • a timepiece such as a plate 900, a bridge, or the like.
  • This positioning and guiding mechanism 100 is advantageously combined with such a display mechanism 1, and in particular constitutes a transfer mechanism for changing the track of the trolley 4.
  • the positioning and guiding mechanism 100 comprises a first roller 101, which is fixed indirectly to the structure 200, with limited mobility with respect to the structure 200, and which is arranged to roll on a rolling track 80 that comprises the component 8.
  • This rolling track 80 comprises at least a first recessed or protruding relief 81, which is arranged to define with the first roller 101 a first mechanical limit switch.
  • the positioning and guiding mechanism 100 further comprises at least one second roller 102, which is fixed indirectly to the structure 200 with limited mobility with respect to the structure 200 and which is arranged to roll on a rolling track 80, 80' that comprises the component 8, which rolling track 80, 80' comprises at least one second recessed or projecting relief 82 arranged to define with the second roller 102 a second mechanical limit switch.
  • the first roller 101 and the second roller 102 roll on a common rolling track 80.
  • first roller 101 and the second roller 102 roll on separate rolling tracks 80 and 80'.
  • the displacement of the first roller 101 and that of the second roller 102 are adjustable independently with respect to the structure 200.
  • the first roller 101 and/or the second roller 102 is subjected to the action of elastic return means 201, 202, tending to bring it to rest on the rolling track 80.
  • the first roller 101 and the second roller 102 are subjected to elastic return means 201, 202, which tend to exert on the component 8 torques of opposite directions.
  • the component 8 comprises two reliefs or notches 81, 82, arranged to block a corresponding roller 101, 102, at the end of travel, in order to precisely position this component 8 in the end of travel position.
  • the first roller 101 and/or the second roller 102 is carried by a rocker 105, 106, which is adjustable by an eccentric 111, 112, with respect to the structure 200, as visible on the figure 5 And 9 .
  • Rocker 105 or 106 is held in place by an intermediate plate 103, 104, which comes to cover it. It is thus easy to very precisely adjust the end-of-travel position of the mobile 8.
  • the end 107, 108, of the rocker 105, 106, opposite the first roller 101, respectively second roller 102 comprises a support boss d at least one spring constituting the elastic return means 201, 202.
  • component 8 is a slide comprising a rack 83 for driving it.
  • the component 8 is guided in a plane movement, on a side opposite the rolling track 80 by at least one guide and support surface 89.
  • the travel of the mobile 8 is rectilinear.
  • the slider 8 moves linearly alternating from left to right, guided by rollers 98. At the end of its travel, this slider 8 requires precise positioning, which cannot be ensured by a cog, because of the gear games.
  • the slider 8 comprises, on either side, said two notches 81, 82, or notches, made in the shape of a V.
  • On each side is a rocker 105, 106, guided on an eccentric 111, 112, and provided with a first roller 101, respectively second roller 102, free and pivoting.
  • These levers 105, 106 are pressed against the slider 8 by means of springs 201, 202.
  • the first roller 101 and the second roller 102 of the levers 105, 106 roll on a smooth surface 80 of the slider 8, in order to reduce the torque required, and at the end of the race, the first roller 101 or the second roller 102 of the rocker concerned 105 or 106 falls into the notch 81 or 82 in the form of a V of the slider 8, positioning the latter precisely.
  • the position of the rocker 105, 106 can be adjusted thanks to its pivoting on the eccentric 111, 112, by placing a screwdriver in the notch of the latter. In this way the positioning of the slider 8 at the end of its travel is adjustable from one room to another.
  • This positioning and guiding mechanism 100 thus ensures precise positioning of a mobile component, allows fine adjustment of the positioning, piece by piece, in the two start and end of stroke positions, finally the torque is reduced thanks to the pivoting rollers.
  • the second trajectory T2 is secant or tangent at at least one point with the first trajectory T1.
  • the display mechanism 1 comprises a slider 8, which is movable in a housing 90 of the plate or the like, this housing 90 is a straight groove in the figures.
  • This slider 8 is driven by the first mobile drive 2 and/or by the second mobile drive 20, or by a clockwork movement 1000 or by a drive mechanism 800, as visible on the figures 11 to 13 , and comprises at least one transfer guide means 9 arranged to guide, at at least one point of tangency, the trolley 4 to pass from the first trajectory T1 to the second trajectory T2 or vice versa.
  • This transfer guide means 9 is more particularly made in the form of a cam track, the figures 10 and 11 show that this cam track comprises a first channel 91 to cause the trolley 4 to pass from the trajectory T1 to the trajectory T2, and a second channel 92 to carry out the reverse maneuver.
  • the slider 8 thus moves, to allow the trajectory of the traveling carriage 4 to be changed, as can be seen in the figure 10 .
  • a second drive wheel 390 of the second drive wheel set 20 rotates and transmits its rotation, in particular to a demultiplier wheel set 52, to rotate a second transfer wheel 209, assembled with a second cam 53.
  • a rocker is constituted by a pivoting rack 55, provided with two feelers 56 and 57, and which is driven, on one side by the second cam 53, and which drives, by a toothed sector 59 which it comprises, the pinion 87 a driving wheel 88 which allows the movement of the slider 8 by means of a rack 83, and on the other side by a first cam 54, integral with a first transfer wheel 29, and of complementary shape to the second cam 53, thus leaving a clearance of a few hundredths of a millimeter of freedom to the rake 55.
  • the first transfer wheel 29 is driven in the same direction as the second transfer wheel 209 via a synchronization wheel 51 .
  • the slope of the second cam 53 drives the rake 55
  • the first cam 54 makes it possible to limit the movement of the rake 55
  • the second cam 53 then serving, in turn, to limit the movement of the rake 55.
  • the second cam 53 could also be secured to a mobile other than the second drive wheel 390 of the second drive mobile 20, and the first cam 54 secured to a mobile other than the synchronization wheel 51.
  • This synchronization wheel 51 can be one of the mobiles of the inverter gear train 300, to save volume in the movement 1000.
  • This system allows the change of trajectory or the change of display of an element, without rotation, in a linear way.
  • the invention also relates to a timepiece movement 1000 comprising at least one such mechanism 100 for positioning and positioning and adjustment guidance, and/or at least one such display mechanism 1.
  • the invention also relates to a timepiece, in particular a watch 2000, comprising such a movement 1000 and/or at least one such positioning and positioning and adjustment guiding mechanism 100, and/or at least one such display 1.
  • the invention takes up little space, and makes it possible to integrate fairly easily into a watch, even of small dimensions such as a ladies' watch, a spectacular and innovative display complication, based on a mechanism of great finesse by being designed for optimal recovery of operating games.

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Description

Domaine de l'inventionField of the invention

L'invention concerne un mécanisme de positionnement et réglage d'un composant d'horlogerie mobile dans un mouvement de va-et-vient selon une course limitée.The invention relates to a mechanism for positioning and adjusting a mobile clockwork component in a reciprocating movement along a limited stroke.

L'invention concerne encore un mécanisme d'affichage d'horlogerie, comportant un tel mécanisme de positionnement et réglage.The invention also relates to a timepiece display mechanism, comprising such a positioning and adjustment mechanism.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme d'affichage, et/ou un tel mécanisme de positionnement et réglage.The invention also relates to a timepiece movement comprising at least one such display mechanism, and/or such a positioning and adjustment mechanism.

L'invention concerne encore une montre comportant un tel mouvement, et/ou au moins un tel mécanisme d'affichage, et/ou un tel mécanisme de positionnement et réglage.The invention also relates to a watch comprising such a movement, and/or at least such a display mechanism, and/or such a positioning and adjustment mechanism.

L'invention concerne le domaine des mécanismes d'affichage d'horlogerie, et en particulier des mécanismes d'affichage à complication, en particulier pour des montres.The invention relates to the field of timepiece display mechanisms, and in particular complication display mechanisms, in particular for watches.

Arrière-plan de l'inventionBackground of the invention

La fonction d'affichage dans l'horlogerie est primordiale, car elle définit la physionomie de la montre, la personnalise, et influe fortement sur la décision d'achat.The display function in watchmaking is essential, because it defines the physiognomy of the watch, personalizes it, and strongly influences the purchasing decision.

Il est difficile de créer des affichages innovants qui soient en même temps très lisibles, ce qui est la condition indispensable.It is difficult to create innovative displays that are at the same time very readable, which is the prerequisite.

On connaît des affichages à disques concentriques, qui sont lisibles, du moins tant qu'il y a peu de valeurs temporelles à afficher, par exemple heure et minute ; la situation se complique dans le cas où l'on envisage trois affichages distincts ou davantage, en raison de la lisibilité qui se réduit quand le nombre de disques augmente.Displays with concentric discs are known, which are readable, at least as long as there are few time values to display, for example hour and minute; the situation becomes more complicated in the case where three displays are considered distinct or more, due to readability which decreases as the number of discs increases.

D'autres affichages nécessitent une lecture convergente de plusieurs indicateurs côte à côte, et certains nécessitent un effort intellectuel notable, qui relègue l'affichage au rang d'une curiosité sans véritable utilité pratique.Other displays require a convergent reading of several indicators side by side, and some require a notable intellectual effort, which relegates the display to the rank of a curiosity without any real practical utility.

Les documents FR1034691A et FR1242819A décrivent des mécanismes de positionnement et réglage de composants horlogers dans des mouvements de va et vient, selon le préambule de la revendication 1.The documents FR1034691A And FR1242819A describe mechanisms for positioning and adjusting watch components in reciprocating movements, according to the preamble of claim 1.

Résumé de l'inventionSummary of the invention

L'invention se propose de fournir un affichage original qui reste très lisible, et qui autorise une personnalisation élevée, notamment en raison de formes ou de dispositions particulières propres à une marque horlogère donnée, en faisant cheminer un afficheur très lisible le long d'une trajectoire de forme particulière. Cette trajectoire peut être complexe, et être parcourue par l'afficheur dans des sens différents, sur différentes portions de la trajectoire totale.The invention proposes to provide an original display which remains very readable, and which allows high customization, in particular due to particular shapes or arrangements specific to a given watch brand, by running a very readable display along a trajectory of particular shape. This trajectory can be complex, and be traversed by the display in different directions, over different portions of the total trajectory.

A cet effet, l'invention concerne un mécanisme de positionnement et réglage d'un composant d'horlogerie mobile dans un mouvement de va-et-vient selon une course limitée, selon la revendication 1. Des réalisations préférées sont définies dans les revendications dépendantes.To this end, the invention relates to a mechanism for positioning and adjusting a mobile clockwork component in a reciprocating movement along a limited stroke, according to claim 1. Preferred embodiments are defined in the dependent claims. .

L'invention concerne encore un mécanisme d'affichage d'horlogerie, comportant un tel mécanisme de positionnement et réglage.The invention also relates to a timepiece display mechanism, comprising such a positioning and adjustment mechanism.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel mécanisme d'affichage, et/ou un tel mécanisme de positionnement et réglage.The invention also relates to a timepiece movement comprising at least one such display mechanism, and/or such a positioning and adjustment mechanism.

L'invention concerne encore une montre comportant un tel mouvement, et/ou au moins un tel mécanisme d'affichage, et/ou un tel mécanisme de positionnement et réglage.The invention also relates to a watch comprising such a movement, and/or at least such a display mechanism, and/or such a positioning and adjustment mechanism.

Description sommaire des dessinsBrief description of the drawings

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

  • la figure 1 représente, de façon schématisée, et en perspective, une platine de pièce d'horlogerie, notamment de montre, portant une partie du mécanisme d'affichage selon l'invention ; deux mobiles d'entraînement, ici extérieurs l'un à l'autre, et qui tournent en sens contraire, comportent chacun des moyens d'entraînement d'un chariot baladeur porteur d'un afficheur ; ces moyens d'entraînement comportent plus particulièrement une fourchette à lame élastique, qui est agencée pour pincer un arbre du chariot baladeur, et entraîner ce dernier le long de moyens de guidage sur une partie d'une trajectoire particulière, et pour libérer cet arbre dans une zone de jonction où se présente la fourchette d'un autre mobile d'entraînement, pour la reprise de cet arbre, avant son entraînement selon une autre trajectoire ; dans cette variante, chaque trajectoire élémentaire est sensiblement circulaire, et le chariot baladeur est agencé pour parcourir une trajectoire globale en forme de huit ;
  • la figure 2 représente, de façon schématisée, et en perspective, un détail du mécanisme de la figure 1, avec une fourchette en position d'entraînement du chariot baladeur lequel comporte deux galets de guidage ; l'afficheur est, dans cet exemple non limitatif, une gemme très visible, en coloris et/ou en brillance, destinée à évoluer en contraste visuel sur un fond d'aspect complètement différent ;
  • la figure 3 représente, de façon schématisée, et en perspective, un autre détail du mécanisme de la figure 1, avec en partie gauche de la figure une fourchette en position de réception du chariot baladeur, lequel vient d'être libéré par la fourchette de l'autre mobile d'entraînement visible en partie droite de la figure ; le chariot baladeur est ici guidé par ses galets de guidage dans une came d'un coulisseau, que comporte un mécanisme de transfert pour le changement de piste du chariot baladeur d'un mobile d'entraînement à l'autre, et qui assure le transfert d'une fourchette à l'autre ;
  • la figure 4 représente, de façon schématisée, et en perspective, un exemple de rouage que comporte le mécanisme de la figure 1, qui comporte un rouage inverseur ;
  • la figure 5 représente, de façon schématisée et en plan, un mécanisme de positionnement et de guidage de positionnement et réglage d'un mobile, notamment du coulisseau de la figure 3, lequel est mobile dans un mouvement de va-et-vient selon une course limitée, le long d'une trajectoire imposée par des moyens de guidage, par rapport à la platine ; notamment ce mécanisme, quand il est combiné avec le mécanisme d'affichage de la figure 1, constitue un mécanisme de transfert pour le changement de piste de son chariot baladeur ; ce mécanisme de positionnement et de guidage comporte deux bascules, réglables par excentrique, rappelées par des ressorts et porteuses de galets qui parcourent une piste de roulement et peuvent occuper des positions de fin de course très précises dans des encoches ;
  • les figures 6 et 7 représentent, de façon schématisée, et en perspective, de façon éclatée puis assemblée, une telle bascule avec son ressort de rappel ;
  • la figure 8 représente, de façon schématisée, et en perspective, la coopération du coulisseau mobile avec l'une des bascules à galet ;
  • la figure 9 représente, de façon schématisée et en plan, un détail de la figure 5, avec le coulisseau immobilisé dans une position de fin de course ;
  • la figure 10 représente, de façon schématisée et en plan, en deux vues, la translation du coulisseau d'une position de fin de course à l'autre, dans une rainure de guidage que comporte la platine ;
  • les figures 11 à 13 illustrent le mécanisme d'entraînement de ce coulisseau mobile :
  • la figure 11 représente, de façon schématisée et en plan, ce mécanisme qui distribue le couple transmis par une roue d'entrée vers deux roues distributrices tournant dans le même sens, porteuse chacune d'une came, sur laquelle prend appui un bras d'une même bascule pourvue d'un râteau qui entraîne un pignon d'un mobile qui engrène avec une crémaillère du coulisseau ;
  • la figure 12 est un détail du mécanisme de la figure 11, vu en transparence depuis l'autre côté de la platine ;
  • la figure 13 représente, de façon schématisée, et en perspective, le mécanisme de la figure 11 ;
  • la figure 14 est un schéma-blocs représentant une pièce d'horlogerie, notamment une montre, comportant un mouvement d'horlogerie et l'ensemble des mécanismes illustrés ci-dessus.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, where:
  • there figure 1 represents, schematically, and in perspective, a timepiece plate, in particular a watch, carrying part of the display mechanism according to the invention; two driving mobiles, here external to each other, and which rotate in opposite directions, each comprise means for driving a portable carriage carrying a display; these means more particularly comprise a fork with an elastic blade, which is arranged to pinch a shaft of the sliding carriage, and to drive the latter along guide means on a part of a particular trajectory, and to release this shaft in a zone junction where the fork of another mobile drive is presented, for the recovery of this shaft, before it is driven along another trajectory; in this variant, each elementary trajectory is substantially circular, and the portable carriage is arranged to traverse an overall trajectory in the shape of a figure of eight;
  • there picture 2 represents, in a schematic way, and in perspective, a detail of the mechanism of the figure 1 , with a fork in the drive position of the sliding carriage which comprises two guide rollers; the display is, in this non-limiting example, a very visible gem, in color and/or in brightness, intended to evolve in visual contrast on a background with a completely different appearance;
  • there picture 3 represents, in a schematic way, and in perspective, another detail of the mechanism of the figure 1 , with in the left part of the figure a fork in the receiving position of the sliding carriage, which has just been released by the fork of the other mobile drive visible in the right part of the figure; the sliding carriage is here guided by its guide rollers in a cam of a slider, which includes a transfer mechanism for changing the track of the sliding carriage from one drive wheel to another, and which ensures the transfer from one fork to another;
  • there figure 4 represents, in a schematic way, and in perspective, an example of a cog that comprises the mechanism of the figure 1 , which includes an inverter gear train;
  • there figure 5 shows, schematically and in plan, a mechanism for positioning and guiding the positioning and adjustment of a mobile, in particular the slider of the picture 3 , which is movable in a back-and-forth movement according to a limited stroke, along a path imposed by guide means, relative to the plate; in particular this mechanism, when it is combined with the display mechanism of the figure 1 , constitutes a transfer mechanism for changing the track of its trolley; this positioning and guiding mechanism comprises two rockers, adjustable by eccentric, returned by springs and carrying rollers which run along a track of bearing and can occupy very precise end-of-travel positions in notches;
  • THE figures 6 and 7 represent, in a schematic way, and in perspective, in an exploded and then assembled way, such a rocker with its return spring;
  • there figure 8 represents, schematically, and in perspective, the cooperation of the movable slider with one of the roller rockers;
  • there figure 9 represents, schematically and in plan, a detail of the figure 5 , with the slider immobilized in an end-of-travel position;
  • there figure 10 represents, schematically and in plan, in two views, the translation of the slider from one end-of-travel position to the other, in a guide groove that comprises the plate;
  • THE figures 11 to 13 illustrate the drive mechanism of this mobile slider:
  • there figure 11 shows, schematically and in plan, this mechanism which distributes the torque transmitted by an input wheel to two distributing wheels rotating in the same direction, each carrying a cam, on which rests an arm of the same rocker provided with a rake which drives a pinion of a mobile which meshes with a rack of the slider;
  • there figure 12 is a detail of the mechanism of the figure 11 , seen in transparency from the other side of the plate;
  • there figure 13 represents, in a schematic way, and in perspective, the mechanism of the figure 11 ;
  • there figure 14 is a block diagram representing a timepiece, in particular a watch, comprising a timepiece movement and all the mechanisms illustrated above.

Description détaillée des modes de réalisation préférésDetailed Description of Preferred Embodiments

L'invention concerne un mécanisme d'affichage 1 d'horlogerie, agencé pour réaliser un affichage complexe en autorisant le cheminement d'au moins un mobile sur une pluralité de pistes élémentaires, constituant ensemble bout à bout une piste globale, que comporte ce mécanisme d'affichage 1.The invention relates to a clockwork display mechanism 1, arranged to produce a complex display by allowing the movement of at least one mobile on a plurality of elementary tracks, constituting together end to end a global track, which this mechanism comprises. display 1.

Le mécanisme d'affichage 1 comporte classiquement un premier mobile d'entraînement 2, qui est agencé pour être entraîné par un mouvement d'horlogerie ou par un mécanisme d'entraînement.The display mechanism 1 conventionally includes a first driving wheel set 2, which is arranged to be driven by a clock movement or by a drive mechanism.

Ce premier mobile d'entraînement 2 comporte des premiers moyens d'entraînement 3, qui sont agencés pour faire avancer un chariot baladeur 4 porteur d'un afficheur 5 selon au moins une partie d'une première trajectoire T1 définie par des premiers moyens de guidage 6.This first drive mobile 2 comprises first drive means 3, which are arranged to cause a portable carriage 4 carrying a display 5 to advance along at least part of a first trajectory T1 defined by first guide means 6.

Ces premiers moyens de guidage 6 sont agencés pour coopérer de façon complémentaire avec des moyens de guidage complémentaire 7 que comporte le chariot baladeur 4. Ces moyens de guidage complémentaire 7 peuvent être constitués par une extrémité de forme adéquate d'un arbre 41 que comporte le chariot baladeur 4, ou, tel que visible sur la figure 2, par des galets de guidage 42, 43, montés libres en rotation sur ce chariot baladeur 4, ou autre.These first guide means 6 are arranged to cooperate in a complementary manner with complementary guide means 7 that the sliding carriage 4 comprises. These complementary guide means 7 can be constituted by a suitably shaped end of a shaft 41 that portable trolley 4, or, as seen on the figure 2 , by guide rollers 42, 43, mounted free to rotate on this sliding carriage 4, or other.

Ce chariot baladeur 4 est agencé pour entraîner ou pour porter un afficheur 5. Sur la variante non limitative illustrée par les figures, le chariot baladeur 4 porte directement un tel afficheur 5.This portable trolley 4 is arranged to drive or to carry a display 5. In the non-limiting variant illustrated by the figures, the portable trolley 4 directly carries such a display 5.

Selon une caractéristique de l'invention, le mécanisme d'affichage 1 comporte au moins un deuxième mobile d'entraînement 20, qui est agencé pour être entraîné par le premier mobile d'entraînement 2, ou par un mouvement d'horlogerie ou par un mécanisme d'entraînement.According to one characteristic of the invention, the display mechanism 1 comprises at least one second drive wheel 20, which is arranged to be driven by the first drive wheel 2, or by a clock movement or by a drive mechanism.

De façon similaire au premier mobile d'entraînement 2, ce deuxième mobile d'entraînement 20 comporte des deuxièmes moyens d'entraînement 30, qui sont agencés pour faire avancer un chariot baladeur, et notamment le chariot baladeur 4, selon au moins une partie d'une deuxième trajectoire T2 définie par des deuxièmes moyens de guidage 60.Similar to the first mobile drive 2, this second mobile drive 20 comprises second drive means 30, which are arranged to advance a trolley, and in particular the trolley 4, according to at least a part of a second trajectory T2 defined by second guide means 60.

Ces deuxièmes moyens de guidage 60 sont agencés pour coopérer de façon complémentaire avec des moyens de guidage complémentaire d'un chariot baladeur, et notamment avec les moyens de guidage complémentaire 7 du chariot baladeur 4.These second guide means 60 are arranged to cooperate in a complementary manner with complementary guide means of a portable trolley, and in particular with complementary guide means 7 of portable trolley 4.

De façon avantageuse, la deuxième trajectoire T2 est sécante ou tangente en au moins un point avec la première trajectoire T1.Advantageously, the second trajectory T2 is secant or tangent at at least one point with the first trajectory T1.

Les figures illustrent une application où le chariot baladeur 4 circule successivement sur tout ou partie de la première trajectoire T1, et sur tout ou partie la deuxième trajectoire T2. Naturellement il est possible de juxtaposer un nombre supérieur de trajectoires, pour faire circuler l'afficheur 5 selon une courbe complexe, selon les principes décrits ci-après.The figures illustrate an application where the trolley 4 circulates successively on all or part of the first trajectory T1, and on all or part of the second trajectory T2. Naturally, it is possible to juxtapose a greater number of trajectories, to cause the display 5 to circulate along a complex curve, according to the principles described below.

Les premiers moyens d'entraînement 3, et les deuxièmes moyens d'entraînement 30, comportent chacun au moins une lame élastique 31, respectivement 310, qui est agencée pour maintenir sans jeu un arbre 41 que comporte le chariot baladeur 4, quand le chariot baladeur 4 circule sur une seule des première trajectoire T1 et deuxième trajectoire T2. Cette au moins une lame élastique 31, 310, est encore agencée pour autoriser la libération de cet arbre 41, pour un transfert du chariot baladeur 4 de la première trajectoire T1 à la deuxième trajectoire T2, ou vice-versa, au niveau d'une zone de jonction T0 constituant l'interface entre la première trajectoire T1 et la deuxième trajectoire T2.The first drive means 3, and the second drive means 30, each comprise at least one elastic blade 31, respectively 310, which is arranged to hold without play a shaft 41 that comprises the sliding carriage 4, when the sliding carriage 4 circulates on only one of the first trajectory T1 and second trajectory T2. This at least one elastic blade 31, 310, is further arranged to allow the release of this shaft 41, for a transfer of the trolley 4 from the first trajectory T1 to the second trajectory T2, or vice versa, at a junction zone T0 constituting the interface between the first trajectory T1 and the second trajectory T2.

Les figures 1 à 4 illustrent, de façon non limitative, un exemple dans lequel un tel chariot baladeur 4 est entraîné selon une trajectoire prédéfinie en forme de huit : ce huit constitue la piste globale, qui résulte de la juxtaposition en tangence externe, au niveau de la zone de jonction T0, d'une première piste T1 sensiblement circulaire, qui comporte les premiers moyens de guidage 6, et d'une deuxième piste T2 sensiblement circulaire, qui comporte les deuxièmes moyens de guidage 60. Ces premiers moyens de guidage 6 et deuxièmes moyens de guidage 60 peuvent notamment comporter au moins une rainure de guidage usinée dans une platine 900 ou un pont, tel que visible sur les figures ou au moins un rail saillant, intégré ou rapporté sur cette platine ou ce pont, ou encore une combinaison de tels rails et/ou rainures.THE figures 1 to 4 illustrate, in a non-limiting way, an example in which such a trolley 4 is driven along a predefined trajectory in the shape of a figure eight: this figure eight constitutes the overall track, which results from the juxtaposition in external tangency, at the level of the junction zone T0, a first substantially circular track T1, which comprises the first guide means 6, and a second substantially circular track T2, which comprises the second guide means 60. These first guide means 6 and second guide means 60 may in particular comprise at least one guide groove machined in a plate 900 or a bridge, as shown in the figures, or at least one projecting rail, integrated or attached to this plate or this bridge, or even a combination of such rails and /or grooves.

Plus particulièrement, les premiers moyens d'entraînement 3, et/ou les deuxièmes moyens d'entraînement 30, comportent une fourchette comportant au moins une lame élastique 31, 310. La fourchette illustrée par les figures comporte une première lèvre 32 et une deuxième lèvre 33 solidaires du mobile d'entraînement 2, 20, concerné, et entre lesquelles s'étend une lame élastique 31, 310, séparée des lèvres par des découpes 34, 35 ; cette lame élastique 31, 310, peut être solidaire du mobile d'entraînement 2 comme sur les figures, ou être rapportée, tel un ressort-lame fixé en porte-à-faux sur le mobile d'entraînement 2, 20. Une des lèvres 32, 33, comporte un premier bec d'appui 37, agencé pour serrer à la façon d'une pince l'arbre 41 du chariot baladeur 4, en coopération avec un deuxième bec d'appui 36 que comporte la lame élastique 31, 310 à son extrémité distale. La lèvre porteuse du premier bec d'appui 37 comporte avantageusement au moins un bossage 38, agencé pour limiter la course angulaire de la lame élastique 31, 310. L'élasticité de la lame élastique 31, 310, est suffisante pour autoriser une course angulaire permettant à l'arbre 41 d'échapper à cette fourchette, lors de son arrivée dans la zone de jonction T0, et de son transfert vers une fourchette antagoniste.More particularly, the first drive means 3, and/or the second drive means 30, comprise a fork comprising at least one elastic blade 31, 310. The fork illustrated by the figures comprises a first lip 32 and a second lip 33 secured to the mobile drive 2, 20, concerned, and between which extends an elastic strip 31, 310, separated from the lips by cutouts 34, 35; this elastic blade 31, 310, can be integral with the drive wheel set 2 as in the figures, or be attached, such as a leaf spring fixed cantilevered on the drive wheel set 2, 20. One of the lips 32, 33, comprises a first support lip 37, arranged to clamp the shaft 41 of the sliding carriage 4 in the manner of a clamp, in cooperation with a second support lip 36 that comprises the elastic blade 31, 310 at its distal end . The bearing lip of the first support beak 37 advantageously comprises at least one boss 38, arranged to limit the angular travel of the elastic blade 31, 310. The elasticity of the elastic blade 31, 310 is sufficient to allow an angular travel allowing the shaft 41 to escape this fork, when it arrives in the junction zone T0, and its transfer to an antagonist fork.

Ici le mécanisme comporte en effet deux telles fourchettes à lames élastiques, tournant en sens opposé, l'une fixée au premier mobile d'entraînement 2, l'autre au deuxième mobile d'entraînement 20. L'arbre 41 du chariot baladeur 4 est pincé par une des fourchettes pendant sa course sur une des trajectoires T1, T2, et est plaqué sur l'extérieur de la rainure de guidage correspondante, grâce à la forme de vé de la fourchette, et est entraîné par cette dernière. Les deux fourchettes sont synchronisées de manière à se superposer au niveau de la zone de jonction T0, lorsque le chariot baladeur 4 a terminé sa course sur une des trajectoires, ici une rotation selon un cercle, et revient sur la zone de jonction T0 entre la première trajectoire T1 à la deuxième trajectoire T2, par exemple au centre du mouvement comme illustré. A ce moment précis, l'arbre 41 du chariot baladeur 4 est transféré d'une fourchette à une autre, grâce à un mécanisme de transfert avec système de coulisseau qui sera exposé plus loin, et peut alors être entraîné par la seconde fourchette pour sa course sur la deuxième trajectoire T2, ici un tour d'un second cercle.Here the mechanism in fact comprises two such forks with elastic blades, rotating in opposite directions, one fixed to the first mobile drive 2, the other to the second mobile drive 20. The shaft 41 of the sliding carriage 4 is pinched by one of the forks during its travel on one of the trajectories T1, T2, and is pressed against the outside of the corresponding guide groove, thanks to the V-shape of the fork, and is driven by the latter. The two forks are synchronized so as to overlap at the level of the junction zone T0, when the sliding carriage 4 has finished its course on one of the trajectories, here a rotation according to a circle, and returns to the junction zone T0 between the first trajectory T1 to the second trajectory T2, for example at the center of the movement as illustrated. At this precise moment, the shaft 41 of the sliding carriage 4 is transferred from one fork to another, thanks to a transfer mechanism with a slider system which will be explained later, and can then be driven by the second fork for its race on the second trajectory T2, here a lap of a second circle.

La figure 3 montre le mécanisme juste après le transfert, quand la fourchette du deuxième mobile d'entraînement 20 serre l'arbre 41 du chariot baladeur 4, avec la fourchette du premier mobile d'entraînement 2 qui est vide et vient de libérer cet arbre 41 ; on voit sur cette figure 3, sus le chariot baladeur 4, un coulisseau 8 qui est mobile sensiblement selon la direction de tangence, dans une zone de jonction T0, entre la première trajectoire T1 et la deuxième trajectoire T2, et qui comporte une piste de came 9 destinée à guider les moyens de guidage complémentaire 7 que comporte le chariot baladeur 4, pour son changement de piste et pour autoriser sa course sur la nouvelle trajectoire.There picture 3 shows the mechanism just after the transfer, when the fork of the second mobile drive 20 grips the shaft 41 of the sliding carriage 4, with the fork of the first mobile drive 2 which is empty and has just released this shaft 41; we see on this picture 3 , above the sliding carriage 4, a slider 8 which is movable substantially in the direction of tangency, in a junction zone T0, between the first trajectory T1 and the second trajectory T2, and which comprises a cam track 9 intended to guide the additional guide means 7 included in the trolley 4, for its change of track and to allow its travel on the new trajectory.

La figure 4 illustre la synchronisation inverse du premier mobile d'entraînement 2, porté par une première roue d'entraînement 39, et du deuxième mobile d'entraînement 20, porté par une deuxième roue d'entraînement 390, au travers d'un rouage inverseur 300. Naturellement, ce rouage peut être agencé avec une démultiplication adéquate pour gérer la coopération de trajectoires T1 et T2 différentes, par exemple avec une trajectoire globale en huit résultant de la coopération d'un petit cercle avec un cercle plus grand.There figure 4 illustrates the reverse synchronization of the first drive wheel 2, carried by a first drive wheel 39, and the second drive wheel 20, carried by a second drive wheel 390, through a reverse gear train 300. Naturally, this gear train can be arranged with an adequate reduction to manage the cooperation of different trajectories T1 and T2, for example with an overall figure-of-eight trajectory resulting from the cooperation of a small circle with a larger circle.

Ce mécanisme autorise ainsi l'entraînement d'un élément transmissible, ici le chariot baladeur 4, il permet le transfert de cet élément, et assure la stabilité de ce chariot baladeur 4.This mechanism thus allows the driving of a transmissible element, here the portable trolley 4, it allows the transfer of this element, and ensures the stability of this portable trolley 4.

L'invention concerne encore un mécanisme 100 de positionnement et de guidage de positionnement et réglage d'un composant 8 d'horlogerie mobile dans un mouvement de va-et-vient selon une course limitée, le long d'une trajectoire imposée par des moyens de guidage, par rapport à une structure 200 fixe d'une pièce d'horlogerie, telle qu'une platine 900, un pont, ou similaire.The invention also relates to a mechanism 100 for positioning and guiding the positioning and adjustment of a mobile clockwork component 8 in a reciprocating movement according to a limited stroke, along a trajectory imposed by means guide, relative to a fixed structure 200 of a timepiece, such as a plate 900, a bridge, or the like.

Ce mécanisme 100 de positionnement et de guidage est avantageusement combiné avec un tel mécanisme d'affichage 1, et en particulier constitue un mécanisme de transfert pour le changement de piste du chariot baladeur 4.This positioning and guiding mechanism 100 is advantageously combined with such a display mechanism 1, and in particular constitutes a transfer mechanism for changing the track of the trolley 4.

Le mécanisme 100 de positionnement et de guidage comporte un premier galet 101, qui est fixé indirectement à la structure 200, avec une mobilité limitée par rapport à la structure 200, et qui est agencé pour rouler sur une piste de roulement 80 que comporte le composant 8.The positioning and guiding mechanism 100 comprises a first roller 101, which is fixed indirectly to the structure 200, with limited mobility with respect to the structure 200, and which is arranged to roll on a rolling track 80 that comprises the component 8.

Cette piste de roulement 80 comporte au moins un premier relief 81 rentrant ou saillant, qui est agencé pour définir avec le premier galet 101 une première fin de course mécanique.This rolling track 80 comprises at least a first recessed or protruding relief 81, which is arranged to define with the first roller 101 a first mechanical limit switch.

Selon une caractéristique de l'invention, le mécanisme 100 de positionnement et de guidage comporte encore au moins un deuxième galet 102, qui est fixé indirectement à la structure 200 avec une mobilité limitée par rapport à la structure 200 et qui est agencé pour rouler sur une piste de roulement 80, 80' que comporte le composant 8, laquelle piste de roulement 80, 80' comporte au moins un deuxième relief 82 rentrant ou saillant agencé pour définir avec le deuxième galet 102 une deuxième fin de course mécanique.According to one characteristic of the invention, the positioning and guiding mechanism 100 further comprises at least one second roller 102, which is fixed indirectly to the structure 200 with limited mobility with respect to the structure 200 and which is arranged to roll on a rolling track 80, 80' that comprises the component 8, which rolling track 80, 80' comprises at least one second recessed or projecting relief 82 arranged to define with the second roller 102 a second mechanical limit switch.

Dans une variante, et tel que visible sur la figure 5, le premier galet 101 et le deuxième galet 102 roulent sur une piste de roulement 80 commune.In a variant, and as visible on the figure 5 , the first roller 101 and the second roller 102 roll on a common rolling track 80.

Dans une autre variante , illustrée aussi sur la figure 5, le premier galet 101 et le deuxième galet 102 roulent sur des pistes de roulement 80 et 80' distinctes.In another variant, also illustrated on the figure 5 , the first roller 101 and the second roller 102 roll on separate rolling tracks 80 and 80'.

Selon l'invention, le débattement du premier galet 101 et celui du deuxième galet 102 sont réglables indépendamment par rapport à la structure 200.According to the invention, the displacement of the first roller 101 and that of the second roller 102 are adjustable independently with respect to the structure 200.

Plus particulièrement, selon l'invention, le premier galet 101 et/ou le deuxième galet 102 est soumis à l'action de moyens de rappel élastique 201, 202, tendant à le mettre en appui sur la piste de roulement 80. En particulier, le premier galet 101 et le deuxième galet 102 sont soumis à des moyens de rappel élastique 201, 202, qui tendent à exercer sur le composant 8 des couples de sens opposés.More particularly, according to the invention, the first roller 101 and/or the second roller 102 is subjected to the action of elastic return means 201, 202, tending to bring it to rest on the rolling track 80. In particular, the first roller 101 and the second roller 102 are subjected to elastic return means 201, 202, which tend to exert on the component 8 torques of opposite directions.

Selon l'invention telle que revendiquée, le composant 8 comporte deux reliefs ou encoches 81, 82, agencée pour bloquer un galet correspondant 101, 102, en fin de course, afin de positionner précisément ce composant 8 en position de fin de course.According to the invention as claimed, the component 8 comprises two reliefs or notches 81, 82, arranged to block a corresponding roller 101, 102, at the end of travel, in order to precisely position this component 8 in the end of travel position.

De façon avantageuse, le premier galet 101 et/ou le deuxième galet 102 est porté par une bascule 105, 106, laquelle est réglable par un excentrique 111, 112, par rapport à la structure 200, tel que visible sur les figures 5 et 9. La bascule 105 ou 106 est maintenue en place par une plaque intermédiaire 103, 104, qui vient la couvrir. Il est ainsi facile de régler très précisément la position de fin de course du mobile 8. L'extrémité 107, 108, de la bascule 105, 106, opposée au premier galet 101, respectivement deuxième galet 102, comporte un bossage d'appui d'au moins un ressort constituant les moyens de rappel élastique 201, 202.Advantageously, the first roller 101 and/or the second roller 102 is carried by a rocker 105, 106, which is adjustable by an eccentric 111, 112, with respect to the structure 200, as visible on the figure 5 And 9 . Rocker 105 or 106 is held in place by an intermediate plate 103, 104, which comes to cover it. It is thus easy to very precisely adjust the end-of-travel position of the mobile 8. The end 107, 108, of the rocker 105, 106, opposite the first roller 101, respectively second roller 102, comprises a support boss d at least one spring constituting the elastic return means 201, 202.

Dans une application particulière illustrée par les figures 5, 8 et 9, le composant 8 est un coulisseau comportant une crémaillère 83 pour son entraînement.In a particular application illustrated by the figure 5 , 8 And 9 , component 8 is a slide comprising a rack 83 for driving it.

Dans une variante, correspondant à la réalisation illustrée par les figures, le composant 8 est guidé selon un mouvement plan, sur un côté opposé à la piste de roulement 80 par au moins une surface de guidage et d'appui 89.In a variant, corresponding to the embodiment illustrated by the figures, the component 8 is guided in a plane movement, on a side opposite the rolling track 80 by at least one guide and support surface 89.

Plus particulièrement, la course du mobile 8 est rectiligne.More particularly, the travel of the mobile 8 is rectilinear.

Dans l'application illustrée où le mobile 8 est un coulisseau, celui-ci se déplace linéairement par alternances de gauche à droite, guidé par des galets 98. En fin de course, ce coulisseau 8 nécessite un positionnement précis, que l'on ne peut pas assurer par un rouage, en raison des jeux d'engrenage. Pour remédier à ce problème, le coulisseau 8 comporte, de part et d'autre, lesdites deux encoches 81, 82, ou entailles, réalisées en forme de vé. De chaque côté se trouve une bascule 105, 106, guidée sur un excentrique 111, 112, et munie d'un premier galet 101, respectivement deuxième galet 102, libre et pivotant. Ces bascules 105, 106, sont plaquées contre le coulisseau 8 grâce à des ressorts 201, 202. Durant le déplacement du coulisseau 8, le premier galet 101 et le deuxième galet 102 des bascules 105, 106, roulent sur une surface lisse 80 du coulisseau 8, afin de diminuer la prise de couple nécessaire, et en fin de course, le premier galet 101 ou le deuxième galet 102 de la bascule concernée 105 ou 106 tombe dans l'encoche 81 ou 82 en forme de vé du coulisseau 8, positionnant ce dernier de manière précise. Pour ajuster la position du coulisseau 8, la position de la bascule 105, 106, peut être réglée grâce à son pivotement sur excentrique 111, 112, en plaçant un tournevis dans l'encoche de ce dernier. De cette manière le positionnement du coulisseau 8 en fin de course est réglable d'une pièce à l'autre.In the illustrated application where the mobile 8 is a slider, the latter moves linearly alternating from left to right, guided by rollers 98. At the end of its travel, this slider 8 requires precise positioning, which cannot be ensured by a cog, because of the gear games. To remedy this problem, the slider 8 comprises, on either side, said two notches 81, 82, or notches, made in the shape of a V. On each side is a rocker 105, 106, guided on an eccentric 111, 112, and provided with a first roller 101, respectively second roller 102, free and pivoting. These levers 105, 106 are pressed against the slider 8 by means of springs 201, 202. During the displacement of the slider 8, the first roller 101 and the second roller 102 of the levers 105, 106 roll on a smooth surface 80 of the slider 8, in order to reduce the torque required, and at the end of the race, the first roller 101 or the second roller 102 of the rocker concerned 105 or 106 falls into the notch 81 or 82 in the form of a V of the slider 8, positioning the latter precisely. To adjust the position of the slider 8, the position of the rocker 105, 106 can be adjusted thanks to its pivoting on the eccentric 111, 112, by placing a screwdriver in the notch of the latter. In this way the positioning of the slider 8 at the end of its travel is adjustable from one room to another.

Ce mécanisme 100 de positionnement et de guidage assure ainsi un positionnement précis d'un composant mobile, permet un réglage fin du positionnement, pièce par pièce, dans les deux positions de début et fin de course, enfin la prise de couple est réduite grâce aux galets pivotants.This positioning and guiding mechanism 100 thus ensures precise positioning of a mobile component, allows fine adjustment of the positioning, piece by piece, in the two start and end of stroke positions, finally the torque is reduced thanks to the pivoting rollers.

Plus particulièrement, la deuxième trajectoire T2 est sécante ou tangente en au moins un point avec la première trajectoire T1. Le mécanisme d'affichage 1 comporte un coulisseau 8, qui est mobile dans un logement 90 de la platine ou similaire, ce logement 90 est une rainure droite sur les figures. Ce coulisseau 8 est entraîné par le premier mobile d'entraînement 2 ou/et par le deuxième mobile d'entraînement 20, ou par un mouvement d'horlogerie 1000 ou par un mécanisme d'entraînement 800, tel que visible sur les figures 11 à 13, et comporte au moins un moyen de guidage de transfert 9 agencé pour guider, en au moins un point de tangence, le chariot baladeur 4 pour passer de la première trajectoire T1 à la deuxième trajectoire T2 ou vice-versa.More particularly, the second trajectory T2 is secant or tangent at at least one point with the first trajectory T1. The display mechanism 1 comprises a slider 8, which is movable in a housing 90 of the plate or the like, this housing 90 is a straight groove in the figures. This slider 8 is driven by the first mobile drive 2 and/or by the second mobile drive 20, or by a clockwork movement 1000 or by a drive mechanism 800, as visible on the figures 11 to 13 , and comprises at least one transfer guide means 9 arranged to guide, at at least one point of tangency, the trolley 4 to pass from the first trajectory T1 to the second trajectory T2 or vice versa.

Ce moyen de guidage de transfert 9 est plus particulièrement réalisé sous la forme d'une piste de came, les figures 10 et 11 montrent que cette piste de came comporte un premier canal 91 pour faire passer le chariot baladeur 4 de la trajectoire T1 à la trajectoire T2, et un deuxième canal 92 pour effectuer la manoeuvre inverse.This transfer guide means 9 is more particularly made in the form of a cam track, the figures 10 and 11 show that this cam track comprises a first channel 91 to cause the trolley 4 to pass from the trajectory T1 to the trajectory T2, and a second channel 92 to carry out the reverse maneuver.

Le coulisseau 8 se déplace ainsi, pour permettre de changer la trajectoire du chariot baladeur 4, comme on peut le voir sur la figure 10.The slider 8 thus moves, to allow the trajectory of the traveling carriage 4 to be changed, as can be seen in the figure 10 .

Une deuxième roue d'entraînement 390 du deuxième mobile d'entraînement 20 tourne et transmet sa rotation, notamment à un mobile démultiplicateur 52, pour mettre en rotation une deuxième roue de transfert 209, assemblée avec une deuxième came 53.A second drive wheel 390 of the second drive wheel set 20 rotates and transmits its rotation, in particular to a demultiplier wheel set 52, to rotate a second transfer wheel 209, assembled with a second cam 53.

Une bascule est constituée par un râteau pivotant 55, muni de deux palpeurs 56 et 57, et qui est entraîné, d'un côté par la deuxième came 53, et qui entraîne, par un secteur denté 59 qu'il comporte, le pignon 87 d'un mobile entraîneur 88 qui permet le déplacement du coulisseau 8 par l'intermédiaire d'une crémaillère 83, et de l'autre côté par une première came 54, solidaire d'une première roue de transfert 29, et de forme complémentaire à la deuxième came 53, laissant ainsi un jeu de quelques centièmes de millimètres de liberté au râteau 55. La première roue de transfert 29 est entraînée dans le même sens que la deuxième roue de transfert 209 par l'intermédiaire d'une roue de synchronisation 51.A rocker is constituted by a pivoting rack 55, provided with two feelers 56 and 57, and which is driven, on one side by the second cam 53, and which drives, by a toothed sector 59 which it comprises, the pinion 87 a driving wheel 88 which allows the movement of the slider 8 by means of a rack 83, and on the other side by a first cam 54, integral with a first transfer wheel 29, and of complementary shape to the second cam 53, thus leaving a clearance of a few hundredths of a millimeter of freedom to the rake 55. The first transfer wheel 29 is driven in the same direction as the second transfer wheel 209 via a synchronization wheel 51 .

Lors du déplacement du coulisseau 8 dans un sens, la pente de la deuxième came 53 entraîne le râteau 55, la première came 54 permet de limiter le déplacement du râteau 55, et, lors du retour du coulisseau 8, c'est la pente de la première came 54 qui entraîne le râteau, dans l'autre sens, la deuxième came 53 servant alors, à son tour, de limitation au déplacement du râteau 55.When the slider 8 moves in one direction, the slope of the second cam 53 drives the rake 55, the first cam 54 makes it possible to limit the movement of the rake 55, and, when the slider 8 returns, it is the slope of the first cam 54 which drives the rake in the other direction, the second cam 53 then serving, in turn, to limit the movement of the rake 55.

Naturellement, la deuxième came 53 pourrait aussi être solidaire d'un autre mobile que la deuxième roue d'entraînement 390 du deuxième mobile d'entraînement 20, et la première came 54 solidaire d'un autre mobile que la roue de synchronisation 51. Cette roue de synchronisation 51 peut être un des mobiles du rouage inverseur 300, pour économiser du volume dans le mouvement 1000.Naturally, the second cam 53 could also be secured to a mobile other than the second drive wheel 390 of the second drive mobile 20, and the first cam 54 secured to a mobile other than the synchronization wheel 51. This synchronization wheel 51 can be one of the mobiles of the inverter gear train 300, to save volume in the movement 1000.

Ce système permet le changement de trajectoire ou le changement d'affichage d'un élément, sans rotation, de manière linéaire.This system allows the change of trajectory or the change of display of an element, without rotation, in a linear way.

L'invention concerne encore un mouvement d'horlogerie 1000 comportant au moins un tel mécanisme 100 de positionnement et de guidage de positionnement et réglage, et/ou au moins un tel mécanisme d'affichage 1.The invention also relates to a timepiece movement 1000 comprising at least one such mechanism 100 for positioning and positioning and adjustment guidance, and/or at least one such display mechanism 1.

L'invention concerne encore une pièce d'horlogerie, notamment une montre 2000, comportant un tel mouvement 1000 et/ou au moins un tel mécanisme 100 de positionnement et de guidage de positionnement et réglage, et/ou au moins un tel mécanisme d'affichage 1.The invention also relates to a timepiece, in particular a watch 2000, comprising such a movement 1000 and/or at least one such positioning and positioning and adjustment guiding mechanism 100, and/or at least one such display 1.

En effet, l'invention occupe peu de place, et permet d'intégrer assez facilement dans une montre, même de petites dimensions comme une montre dame, une complication d'affichage spectaculaire et innovante, basée sur un mécanisme d'une grande finesse tout en étant conçu pour un rattrapage optimal des jeux de fonctionnement.Indeed, the invention takes up little space, and makes it possible to integrate fairly easily into a watch, even of small dimensions such as a ladies' watch, a spectacular and innovative display complication, based on a mechanism of great finesse by being designed for optimal recovery of operating games.

Claims (13)

  1. A mechanism (100) for positioning and adjusting a timepiece component (8) which is movable back and forth in a limited stroke, along a path imposed by guide means, relative to a fixed structure (200) of a timepiece, said mechanism (100) including a first roller (101) which is fixed indirectly to said structure (200) with limited mobility relative to said structure (200) and which is arranged to roll on a rolling track (80) that said component (8) includes, which rolling track (80) comprises at least a first re-entrant or projecting relief (81) arranged to define, with said first roller (101), a first mechanical end of travel, said mechanism (100) also comprising at least a second roller (102) which is fixed indirectly to said structure (200) with limited mobility relative to said structure (200) and which is arranged to roll on said rolling track (80) that said component (8) comprises, or on a separate rolling track (80') that said component comprises, which rolling track (80 ; 80') comprises at least one re-entrant or projecting second relief (82) arranged to define, with said second roller (102), a second mechanical end of travel, mechanism in which the mobility of said first roller (101) and that of said second roller (102) can be adjusted independently relative to said structure (200);
    characterised in that said first roller (101) and/or said second roller (102) is subjected to elastic return means (201; 202) tending to position it resting on said rolling track (80, 80').
  2. Mechanism (100) according to claim 1, characterised in that said first roller (101) and said second roller (102) are subjected to said elastic return means (201; 202) which tend to exert torques in opposite directions on said component (8).
  3. Mechanism (100) according to claim 1 or 2, characterised in that said first roller (101) and/or said second roller (102) is adjustable by an eccentric with respect to said structure (200).
  4. Mechanism (100) according to one of claims 1 to 3, characterised in that said component (8) is a slide-block, movable in a housing (90) or a groove of said structure (200), and comprising a rack for driving it.
  5. Mechanism (100) according to one of claims 1 to 4, characterised in that the said component (8) is guided in a planar movement on a side opposite the said rolling track (80) by at least one guiding and bearing surface (89).
  6. Mechanism (100) according to one of claims 1 to 5, characterised in that said first relief (81) and/or said second relief (82) comprises a notch (81; 82) arranged to block said first roller (101) or said second roller (102) at the end of travel, in order to position said component (8) precisely in the end-of-travel position.
  7. Mechanism (100) according to one of claims 1 to 6, characterised in that said first roller (101) and/or said second roller (102) is carried by a rocker (105; 106), which is adjustable by means of an eccentric (111; 112), with respect to said structure (200), for adjusting the end-of-travel position of said moving member (8).
  8. Mechanism (100) according to one of claims 1 to 7, characterised in that one end (107; 108) of the said rocker (105; 106), opposite the said first roller (101), respectively second roller (102), comprises a boss for supporting at least one spring constituting the said elastic return means (201; 202).
  9. Clockwork display mechanism (1) comprising a mechanism (100) for positioning and adjusting a component according to one of claims 1 to 8.
  10. Display mechanism (1) according to Claim 9, characterised in that said display mechanism (1) comprises a sliding carriage (4) movable on tracks along at least a first trajectory T1 and a second trajectory T2 successively connected at a junction zone T0 in which the transfer from one trajectory to the other is effected by said moving carriage (8) which comprises at least one transfer guide means (9) arranged to guide, at at least one said point of tangency, the said sliding carriage (4) to move from the said first trajectory T1 to the said second trajectory T2 or vice versa.
  11. A display mechanism (1) according to claim 10, characterised in that said transfer guide means (9) is a cam track which comprises a first channel (91) for transferring said sliding carriage (4) from said first trajectory T1 to said second trajectory T2, and a second channel (92) for performing the reverse manoeuvre.
  12. Watch movement (1000) comprising at least one display mechanism (1) according to one of claims 9 to 11, and/or at least one mechanism (100) for positioning and adjusting a component according to one of claims 1 to 8.
  13. Watch (2000), comprising a movement (1000) according to claim 12, and/or at least one display mechanism (1) according to one of claims 9 to 11, and/or at least one mechanism (100) for positioning and adjusting a component according to one of claims 1 to 8.
EP19199581.0A 2019-09-25 2019-09-25 Timepiece display mechanism with multi-track guiding Active EP3798740B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19199581.0A EP3798740B1 (en) 2019-09-25 2019-09-25 Timepiece display mechanism with multi-track guiding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19199581.0A EP3798740B1 (en) 2019-09-25 2019-09-25 Timepiece display mechanism with multi-track guiding

Publications (2)

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EP3798740A1 EP3798740A1 (en) 2021-03-31
EP3798740B1 true EP3798740B1 (en) 2023-09-06

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ID=68069559

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Application Number Title Priority Date Filing Date
EP19199581.0A Active EP3798740B1 (en) 2019-09-25 2019-09-25 Timepiece display mechanism with multi-track guiding

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EP (1) EP3798740B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030980A (en) * 1932-05-20 1936-02-18 Elgin Nat Watch Co Self-winding timepiece
FR1034691A (en) * 1950-12-16 1953-07-29 Improvements to drive devices for discontinuous movement counter type devices
FR1242819A (en) * 1957-10-22 1960-10-07 Improvements to self-winding watches
EP3312683B1 (en) * 2016-10-18 2019-02-20 ETA SA Manufacture Horlogère Suisse Mechanical clock movement with resonator having two degrees of freedom with maintenance mechanism by a wheel rolling on a track

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