EP3798744B1 - Uhr-anzeigemechanismus mit mehrspuriger führung - Google Patents

Uhr-anzeigemechanismus mit mehrspuriger führung Download PDF

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Publication number
EP3798744B1
EP3798744B1 EP19199583.6A EP19199583A EP3798744B1 EP 3798744 B1 EP3798744 B1 EP 3798744B1 EP 19199583 A EP19199583 A EP 19199583A EP 3798744 B1 EP3798744 B1 EP 3798744B1
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European Patent Office
Prior art keywords
drive
cam
transfer
display mechanism
path
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Active
Application number
EP19199583.6A
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English (en)
French (fr)
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EP3798744A1 (de
Inventor
Cédric Reymond
Alain Delizee
Robin Rusterholz
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Blancpain SA
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Blancpain SA
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Priority to EP19199583.6A priority Critical patent/EP3798744B1/de
Publication of EP3798744A1 publication Critical patent/EP3798744A1/de
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Publication of EP3798744B1 publication Critical patent/EP3798744B1/de
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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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • G04B47/044—Movable decorations and parts thereof
    • 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
    • G04B45/0023—Inscriptions or pictures moved by the clockwork, e.g. for advertising

Definitions

  • the invention relates to a clockwork display mechanism, comprising a first drive wheel arranged to be driven by a clockwork movement or by a drive mechanism, said first drive wheel comprising first drive means drive arranged to advance a sliding carriage carrying a display along at least part of a first trajectory defined by first guide means arranged to cooperate in a complementary manner with complementary guiding means that said sliding carriage comprises.
  • the invention also relates to a timepiece movement comprising at least one such display mechanism.
  • the invention also relates to a watch comprising such a movement, and/or at least such a display 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 be displayed, for example hour and minute; the situation becomes more complicated in the case where three or more distinct displays are envisaged, because of the readability which is reduced when the number of discs increases.
  • the document EP1125172 discloses a display guided in a conchoid-shaped track that includes a first curved trajectory intersecting a second curved trajectory.
  • 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 timepiece display mechanism, according to claim 1.
  • the invention also relates to a timepiece movement comprising at least one such display mechanism.
  • the invention also relates to a watch comprising such a movement, and/or at least such a display 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 comprises a first driving wheel set 2, which is arranged to be driven by a clockwork movement or by a drive mechanism.
  • This first mobile drive 2 comprises first drive means 3, which are arranged to advance a portable carriage 4 carrying a display 5 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 comprises the trolley 4.
  • complementary guide means 7 can be constituted by an end of a suitable shape of a shaft 41 that comprises the trolley 4, or, as visible 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 over all or part of the first trajectory T1, and over all or part of the second trajectory T2.
  • the display 5 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 blade elastic 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 the level of a junction zone T0 constituting the interface between the first trajectory T1 and the second trajectory T2.
  • 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 blade 31, 310, separated from the lips by cutouts 34, 35; this elastic blade 31, 310, can be secured to drive wheel set 2 as in the figures, or be attached, such as a leaf spring fixed cantilevered on drive wheel set 2, 20.
  • One of the lips 32, 33 comprises a first support beak 37, arranged to clamp the shaft 41 of the sliding carriage 4 in the manner of a clamp, in cooperation with a second support beak 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 T0 junction zone, and its transfer to an antagonist fork.
  • the mechanism indeed 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 guide groove corresponding, 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.
  • the 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.
  • the 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.
  • 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 that comprises the component 8, which rolling track 80 comprises at least a 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
  • the displacement of the first roller 101 and that of the second roller 102 are independently adjustable with respect to the structure 200.
  • 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 running track 80.
  • first roller 101 and the second roller 102 are subjected to elastic return means 201, 202, which tend to exert on component 8 torques of opposite directions.
  • the component 8 advantageously comprises at least one notch 81, 82, arranged to block a 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, relative 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 mobile 8 moves linearly alternately from left to right, guided by rollers 98. At the end of its travel, this slider 8 requires precise positioning, which is not cannot be secured by a cog, due to gear play.
  • the slider 8 comprises, on either side, 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 V-shaped notch 81 or 82 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 make the sliding carriage 4 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 that it comprises, the pinion 87 of a mobile drive 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Electromechanical Clocks (AREA)

Claims (7)

  1. Anzeigemechanismus (1) für die Uhrmacherei, eine erste Antriebsscheibe (2) aufweisend, die eingerichtet ist, um von einem Uhrwerk, oder von einem Antriebsmechanismus angetrieben zu werden, wobei die erste Antriebsscheibe (2) erste Antriebsvorrichtungen (3) aufweist, die eingerichtet sind, um einen Kupplungsschlitten (4), der eine Anzeigeeinheit (5) trägt, entlang mindestens eines Abschnitts einer ersten Trajektorie T1 voranzubringen, die durch erste Führungsvorrichtungen (6) definiert ist, die eingerichtet sind, um auf komplementäre Weise mit komplementären Führungsvorrichtungen (7) zu kooperieren, die der Kupplungsschlitten (4) aufweist, wobei der Anzeigemechanismus (1) mindestens eine zweite Antriebsscheibe (20) aufweist, die eingerichtet ist, um von der ersten Antriebsscheibe (2) oder von einem Uhrwerk oder von einem Antriebsmechanismus angetrieben zu werden, wobei die zweite Antriebsscheibe (20) zweite Antriebsvorrichtungen (30) aufweist, die eingerichtet sind, um den Kupplungsschlitten (4) entlang mindestens eines Abschnitts einer zweiten Trajektorie T2 voranzubringen, die durch zweite Führungsvorrichtungen (60) definiert ist, die eingerichtet sind, um auf komplementäre Weise mit den komplementären Führungsvorrichtungen (7) des Kupplungsschlittens (4) zu kooperieren, wobei die zweite Trajektorie T2 in mindestens einem Punkt die erste Trajektorie T1 schneidet oder berührt, wobei der Anzeigemechanismus (1) einen beweglichen Schieber (8) aufweist, der mindestens eine Übertragungsführungsvorrichtung (9) aufweist, die eingerichtet ist, um den Kupplungsschlitten (4) an mindestens einem Punkt zu führen, um von der ersten Trajektorie T1 zur zweiten Trajektorie T2 zu passieren oder umgekehrt, wobei der Anzeigemechanismus (1) zum Antrieb des Schiebers (8), ein Räderwerk aufweist, das eingerichtet ist, um von einem Uhrwerk oder von einem Antriebsmechanismus angetrieben zu werden, dadurch gekennzeichnet, dass das Räderwerk ein erstes Übertragungsrad (29) und ein zweites Übertragungsrad (209) aufweist, die synchron jeweils eine erste Übertragungskurvenscheibe (54) und eine zweite Übertragungskurvenscheibe (53) tragen, deren Bahnen mit zwei Taststiften (56, 57) desselben drehbaren Rechens (55) kooperieren, der durch einen gezahnten Sektor (59), den er aufweist, eine Mitnehmerscheibe (88) antreibt, die eingerichtet ist, um eine Zahnstange (83), die der Schieber (8) aufweist, linear anzutreiben.
  2. Anzeigemechanismus (1) nach Anspruch 1, dadurch gekennzeichnet, dass der bewegliche Schieber (8) durch die erste Antriebsscheibe (2) oder/und durch die zweite Antriebsscheibe (20) oder durch ein Uhrwerk oder durch einen Antriebsmechanismus angetrieben wird.
  3. Anzeigemechanismus (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Übertragungsführungsvorrichtung (9) eine Kurvenscheibenbahn ist, die einen ersten Kanal (91) aufweist, um den Kupplungsschlitten (4) von der ersten Trajektorie T1 zur zweiten Trajektorie T2 passieren zu lassen, und einen zweiten Kanal (92), um den umgekehrten Vorgang durchzuführen.
  4. Anzeigemechanismus (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Übertragungsführungsvorrichtung (9) für den Wechsel der Trajektorie des Kupplungsschlitten (4) eingerichtet ist, linear ohne Rotationsbewegung.
  5. Anzeigemechanismus (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der drehbare Rechen (55) angetrieben ist, auf einer ersten Seite, von der ersten Übertragungskurvenscheibe (54), und einer zweiten gegenüberliegenden Seite, von der zweiten Übertragungskurvenscheibe (53) von komplementärer Form zur ersten Übertragungskurvenscheibe (54), auf eine Weise, dass, bei der Verschiebung des Schiebers (8) in eine erste Richtung, die Neigung der zweiten Kurvenscheibe (53) den Rechen (55) antreibt, dessen erste Kurvenscheibe (54) die Verschiebung begrenzt, und, beim Rücklauf des Schiebers (8) in eine zweite Richtung, entgegengesetzt zur ersten, die Neigung der ersten Kurvenscheibe (54) den Rechen (55) antreibt, wobei die zweite Kurvenscheibe (53) dann ihrerseits dazu dient, die Verschiebung des Rechens (55) zu begrenzen.
  6. Uhrwerk (1000), das mindestens einen Anzeigemechanismus (1) nach einem der Ansprüche 1 bis 5 aufweist.
  7. Uhr (2000), die ein Werk (1000) nach Anspruch 6 aufweist, und/oder mindestens einen Anzeigemechanismus (1) nach einem der Ansprüche 1 bis 5.
EP19199583.6A 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung Active EP3798744B1 (de)

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EP19199583.6A EP3798744B1 (de) 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung

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EP19199583.6A EP3798744B1 (de) 2019-09-25 2019-09-25 Uhr-anzeigemechanismus mit mehrspuriger führung

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EP3798744B1 true EP3798744B1 (de) 2022-05-11

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125172B1 (de) * 1999-09-02 2009-11-11 John C. Ermel Uhr

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280461A (en) * 1992-11-13 1994-01-18 Jaroslav Belik Single hand timepiece with sinusoidal display

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125172B1 (de) * 1999-09-02 2009-11-11 John C. Ermel Uhr

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