EP4202573B1 - Mechanismus zur animation eines objekts für uhr - Google Patents

Mechanismus zur animation eines objekts für uhr Download PDF

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Publication number
EP4202573B1
EP4202573B1 EP21216235.8A EP21216235A EP4202573B1 EP 4202573 B1 EP4202573 B1 EP 4202573B1 EP 21216235 A EP21216235 A EP 21216235A EP 4202573 B1 EP4202573 B1 EP 4202573B1
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EP
European Patent Office
Prior art keywords
pivot axis
drive
frame
shaft
support system
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
EP21216235.8A
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English (en)
French (fr)
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EP4202573A1 (de
Inventor
Stephen Forsey
Florian Corneille
Anaïs HAMEL
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.)
GREUBEL FORSEY SA
Original Assignee
Greubel Forsey SA
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Filing date
Publication date
Application filed by Greubel Forsey SA filed Critical Greubel Forsey SA
Priority to EP21216235.8A priority Critical patent/EP4202573B1/de
Priority to PCT/EP2022/085828 priority patent/WO2023117622A1/fr
Priority to CN202280083435.XA priority patent/CN118575135A/zh
Publication of EP4202573A1 publication Critical patent/EP4202573A1/de
Application granted granted Critical
Publication of EP4202573B1 publication Critical patent/EP4202573B1/de
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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04Time-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
    • G04B47/042Fastening of jewels and the like
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B45/00Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/0007Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04Time-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
    • G04B47/044Movable decorations and parts thereof

Definitions

  • the present invention relates to the field of watchmaking. It relates, more particularly, to a mechanism for animating at least one object such as one or more jewels, one or more precious or semi-precious stones, one or more sculptures or any other miniature object or objects or combination thereof, suitable for being integrated into a timepiece.
  • the document FR2988866 describes a mechanism for animating a precious or semi-precious stone, in which a mainspring is arranged to animate the stone in a rotational movement around a single axis of rotation, by means of a flexible belt.
  • the stone is mounted on a shaft by four claws or jaws, which hold it in place.
  • the movement of the stone is monotonous and only reveals one of its faces, which always presents the same angle to the wearer and therefore limits its visibility.
  • the scintillation of the stone is thus relatively limited and a user is obliged to observe it from an acute angle in order to see more than its crown.
  • the document US4734895 describes a mechanism for animating a stone, arranged so that the latter rotates around the dial. To do this, the stone is fixed on a lever pivoted around the center of the movement, and the movements of the user's wrist generate movements of the stone under the effect of gravity. However, if the part is not in motion, the stone remains immobile.
  • the aim of the invention is therefore to provide an animation mechanism in which the aforementioned defects are at least partially overcome.
  • Document JPH1048353 concerns a mechanism for animating an object, arranged such that the latter performs rotations around the axis of the dial and around its own axis, these two axes being parallel.
  • the invention relates to a mechanism for animating at least one object for a portable timepiece, as defined by claim 1.
  • Said support system comprises a first frame pivotally mounted on said turntable about said first pivot axis, as well as an inner frame pivotally mounted in said first frame about a second pivot axis which is substantially orthogonal to said first pivot axis.
  • Said object is carried by a shaft pivotally mounted in said inner frame about a third pivot axis, said shaft being integral in rotation with a pinion meshing with a toothing which is coaxial with said drive wheel and is distinct from the latter, said toothing being fixed or arranged to be driven by rotation. This toothing is typically carried by a secondary wheel.
  • an orbital motion of the object can be achieved, the object being inclined relative to the main pivot axis and rotating about the third axis during its travel around the latter, which increases the visibility of the object.
  • the degrees of freedom provided by the frames allowing for compensation of manufacturing tolerances and thus to avoid a blockage of the mechanism and/or a loss of grip between said pinion and said toothing with which the latter meshes.
  • the object is a cut stone
  • its movement optimizes the scintillations, and the angle of inclination of the object can be easily predetermined by the manufacturer by modifying the diameter of said wheel and the angle of its toothing as well as that of the pinion, for example in order to optimize the scintillations for a particular stone or to optimize the visibility of any object.
  • said drive element which may be a lever, a crank or the like, cooperates with one end of said shaft.
  • the pinion is thus forced to remain engaged with the toothing with which it meshes, without any need to provide other means for this purpose.
  • the diameter ratio between said pinion and said teeth is at least 5, preferably between 5 and 400, more preferably between 5 and 50, and more preferably between 5 and 20.
  • said rotating plate is located outside said frame element, surrounding it in its plane.
  • the mechanism further comprises a regulating system such as an escapement-balance-spring system, tuning fork, quartz system, a centrifugal regulator, a paddle wheel rotating in air or in a liquid, a mono-, bi- or triaxial tourbillon, a carousel or the like, arranged to be driven by said drive source and thus regulate the speed of rotation of said object.
  • a regulating system such as an escapement-balance-spring system, tuning fork, quartz system, a centrifugal regulator, a paddle wheel rotating in air or in a liquid, a mono-, bi- or triaxial tourbillon, a carousel or the like, arranged to be driven by said drive source and thus regulate the speed of rotation of said object.
  • the mechanism which is the subject of the invention can, of course, be integrated into a timepiece, such as for example a wristwatch or a pocket watch, but also a table clock.
  • FIG. 1 illustrates an animation mechanism according to the invention integrated into a timepiece.
  • the animation mechanism 1 comprises a frame element 3 which serves as a support for the other components of said mechanism 1, and which can be fixed on the frame (for example on a plate or a bridge) of a base movement M or can be integrated with such a frame.
  • the driving source 5 can be dedicated to the animation mechanism 1, or can be shared with the watch movement M arranged to drive display members 9 of any type and in a known manner, which surmount a dial 10 (if present).
  • the driving source 5 can be a stem, bolt or the like, arranged to be manipulated by the user, or an oscillating weight.
  • the driving source 5 is preferably arranged to drive a regulating system 11 (in particular but not exclusively in the case where the driving source is a mainspring), which can be of any known mechanical type, such as, for example, a centrifugal regulator, a paddle wheel rotating in air or in a liquid, a tuning fork regulator, an escapement-balance-spring regulator, a mono-, bi- or triaxial tourbillon, a carousel or any other similar system (or combination of systems).
  • the regulating system 11 can also be of the electrical or electronic type (for example a quartz regulator).
  • the driving force drives in rotation a drive wheel 12 pivotally mounted on the frame element 3, for example on a cylindrical bearing surface 3a of the latter, by means of a ball bearing or any other known type of bearing.
  • the nature of the kinematic connection between the driving source 5 and the drive wheel 12 is not important, and may take any suitable form, consisting of wheels, pinions, belts, chains, combinations of these, etc. In the illustrated construction, an intermediate wheel 14 is provided for this purpose.
  • a drive element 15 is mounted so as to be rotatably fixed to the drive wheel 12 and serves to drive a support system 13 about the axis of rotation A of the latter, as will become clear later.
  • the drive element 15 is a lever, but it can also be a disk, a sector or the like, or can even be integrated into the drive wheel 12.
  • the support system 13, as well as the decorative object 7 (or several grouped decorative objects) that it carries, are off-centered relative to the axis A of the drive wheel, defined as the main pivot axis A (which is a geometric axis rather than a shaft).
  • the support system 13 and the decorative object 7 are not intersected by the axis A (i.e. they are distant from the latter), but the reverse may alternatively be the case.
  • the support system 13 is thus arranged to perform an orbital movement around the axis A.
  • the object 7, and possibly also the entire support system 13, may be located so as not to be superimposed on the dial 10 (if present), such that these elements orbit around the latter. Alternatively, these elements may be at least partially superimposed on, or at least partially below, the dial 10.
  • the support system 13 is mounted, by means of a pair of pivots 13a carried by supports 13m, on a rotating plate 17 of annular shape, which is itself pivotally mounted on the frame element 3 by means of a ball bearing or any other suitable type of bearing. Consequently, the rotating plate 17 surrounds the frame element 3.
  • the rotating plate 17 may be of any shape, and/or can be pivoted on a shaft or on any bearing with which the frame element 3 is provided.
  • the pivots 13a define a first pivot axis A1, around which a first frame 13b is pivoted, consisting of an annular ring of generally circular shape. Other shapes (oval, square, rectangular, etc.) are also possible.
  • This frame carries a pair of intermediate pivots 13d, which define a second pivot axis A2, substantially orthogonal to said first axis A1.
  • An inner frame 13f is pivotally mounted around this second axis A2, and is secured to a base 13g which directly or indirectly carries the animated object 7.
  • the inner frame 13f consists of a part having a substantially circular shape, as well as two arms 13f1 which connect the pivots 13d to the base 13g. It goes without saying that other shapes are also possible, and it is not even obligatory for the frame 13f to include the annular part. In fact, the 13g base can simply be connected to the pivots by the 13f1 arms or by another ad hoc arrangement.
  • At least one of the frames 13b, 13f may be provided with any decoration, for example enameling, precious or semi-precious stones, or any other desired decoration.
  • at least one of the shafts of the pivots 13d, 13a may extend beyond the surface of the element that it passes through, i.e. the outer surface of the first frame 13b for the pivots 13d, or the outer surface of the support 13m in the case of the pivots 13a, and may bear a decoration, such as, for example, a precious or semi-precious stone. The movement of this stone will therefore generate scintillations that will accentuate the perception of the pivoting of the frame with which the stone is integral in rotation.
  • the animated object 7 is supported by a shaft 13h, which passes through the base 13g and which is secured to a support 13j in which the animated object 7 is fixed by crimping.
  • the object 7 can be fixed there by gluing, screwing, welding, driving or the like, depending on the nature of the object 7 and the support 13j, and it is noted that the animated object 7 can be coaxial with the shaft 13h, or can be off-center relative to the latter.
  • the connection between the animated object 7 and the inner frame 13f can comprise a flexible element, for example made of elastomer, to allow a slight “floating” of the object under the effect of the movement of the part.
  • the shaft 13h is mounted in bearings 13k provided in the base 13g such that said shaft 13h can pivot relative to the latter.
  • the support system defines a gimbal support, which gives the animated object 7 two degrees of freedom in rotation, and, substantially, no degrees of freedom in translation.
  • the pivoting of the shaft 13h in the base 13g gives a third degree of freedom in rotation to the animated object 7 about a third axis A3, which corresponds to the geometric axis of the shaft 13h.
  • the axis A3 is advantageously orthogonal to each of the axes A1 and A2, but this is not obligatory.
  • the driving of the animated object 7 around the third axis A3 is ensured by the cooperation between a pinion 131 consisting of a toothing that the shaft 13h comprises and a conical toothing 19a that a secondary wheel 19 comprises which is coaxial with the drive element 15 and is fixed in the illustrated construction.
  • a pinion 131 consisting of a toothing that the shaft 13h comprises
  • a conical toothing 19a that a secondary wheel 19 comprises which is coaxial with the drive element 15 and is fixed in the illustrated construction.
  • Other forms of toothing are also possible, such as for example, an internal conical toothing carried by a crown, or other ad hoc gears.
  • the secondary wheel 19 can also be driven by a rotation by an ad hoc mechanism in order to provide a rotation of the object 7 around the axis A3 which is faster, slower and/or which is in the other direction than that obtained with a fixed secondary wheel 19.
  • the drive element 15 cooperates with one end of the shaft 13h so as to pivot the support system 13 as well as the rotating plate 17 about the axis A, while maintaining the pinion 13l in engagement with the teeth 19a.
  • the drive element 15, or another element integral in rotation with the drive wheel 12 can also cooperate directly or indirectly with the rotating plate 17, for example by means of the cooperation between a pin and an oblong slot provided on these two elements.
  • the drive element 15 can cooperate with the rotating plate 17.
  • other means can be provided to ensure the meshing between the pinion 13l and the teeth 19a, as well as the positioning of the shaft 13h. For this purpose, mention may be made, for example, of one or more pressure springs mounted directly or indirectly on the rotating plate 17.
  • the animated object 7 is pivoted about the central axis A, while it pivots about its own pivot axis A3, the angle formed between these two axes remaining constant during the rotations.
  • the object is thus made very visible, and in the case of a stone, the scintillations can be accentuated.
  • the illustrated construction facilitates the adaptation of the angle formed between the axes A and A3 at the time of construction, for example in order to optimize the scintillations of a gemstone of any shape.
  • the manufacturer can simply adapt the diameter of the secondary wheel 19, as well as the meshing angle between the pinion 13l and the toothing 19a. In doing so, it is possible for the axis A3 to intersect with the main pivot axis A on the dial side (i.e. in the direction of an observer) or on the back side of the mechanism (i.e. the object is moving respectively inwards or outwards depending on the point of view of an observer.)
  • the support system 13 is distinct from the regulating system 11, the latter simply serving to determine the speed of rotation of the drive wheel 12 and the movements of the animated object 7.
  • the animated object 7 is not part of the regulating system 11 as a functional or support element, is not mounted on an element of the latter, does not carry any element of the regulating system 11 and can be considered kinematically in parallel to the latter.
  • the support system 13 may be located inside, or superimposed on, a polished well (not shown), which may take the form of, for example, a cup, a parabolic, elliptical, hemispherical mirror or the like, which is arranged to direct ambient light onto the underside of the object.
  • a light source e.g. a tritium element, one or more LEDs or the like
  • the frames 13b, 13f may be placed below the object and the frames 13b, 13f.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Claims (6)

  1. Mechanismus (1) zur Animation mindestens eines Objekts (7) für eine tragbare Uhr, mit einem Rahmenelement (3), worauf montiert sind:
    - eine Antriebsquelle (5);
    - ein Antriebsrad (12), das so angeordnet ist, dass es von der Antriebsquelle (5) angetrieben wird und eine Hauptdrehachse (A) definiert, um die das Antriebsrad (12) drehbar angeordnet ist;
    - ein Antriebselement (15), das drehfest mit dem Antriebsrad (12) verbunden und so angeordnet ist, dass es das Objekt (7) in Drehung um die Hauptdrehachse (A) antreibt;
    - eine Drehscheibe (17), die koaxial zu dem Antriebsrad (12) angeordnet ist und ein Trägersystem (13) für den Gegenstand trägt, wobei das Trägersystem (13) in Bezug auf die Hauptdrehachse (A) dezentriert ist,
    wobei das Trägersystem (13) einen ersten Rahmen (13b), der an dem Drehtisch (17) um eine erste Drehachse (A1) drehbar angebracht ist, sowie einen inneren Rahmen (13f) aufweist, der in dem ersten Rahmen (13b) um eine zweite Drehachse (A2) drehbar angebracht ist, die im Wesentlichen orthogonal zu der ersten Drehachse (A1) verläuft,
    und wobei das Objekt (7) von einer Welle (13h) getragen wird, die in dem inneren Rahmen (13f) um eine dritte Drehachse (A3) drehbar montiert ist, wobei die Welle (13h) drehfest mit einem Ritzel (13l) verbunden ist, das mit einer Verzahnung (19a) kämmt, die koaxial zu dem Antriebsrad ist, wobei die Verzahnung (19a) feststehend oder so angeordnet ist, dass sie in eine Drehung versetzt werden kann.
  2. Mechanismus (1) nach dem vorhergehenden Anspruch, wobei das Antriebselement (15) mit einem Ende der Welle (13h) zusammenwirkt.
  3. Mechanismus (1) nach einem der vorhergehenden Ansprüche, wobei das Durchmesserverhältnis zwischen dem Ritzel (13i) und der Verzahnung (19a) mindestens 5, vorzugsweise zwischen 5 und 400, weiter vorzugsweise zwischen 5 und 50 und noch weiter vorzugsweise zwischen 5 und 20, beträgt.
  4. Mechanismus (1) nach einem der vorhergehenden Ansprüche, wobei die Drehscheibe (17) außerhalb des Rahmenelements (3) liegt, in der Ebene des Letzteren betrachtet.
  5. Mechanismus nach einem der vorhergehenden Ansprüche, der außerdem ein Reguliersystem (11) umfasst, das so angeordnet ist, dass es von der Antriebsquelle (5) angetrieben wird.
  6. Uhr mit einem Mechanismus (1) nach einem der vorhergehenden Ansprüche.
EP21216235.8A 2021-12-21 2021-12-21 Mechanismus zur animation eines objekts für uhr Active EP4202573B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21216235.8A EP4202573B1 (de) 2021-12-21 2021-12-21 Mechanismus zur animation eines objekts für uhr
PCT/EP2022/085828 WO2023117622A1 (fr) 2021-12-21 2022-12-14 Mecanisme d'animation d'un objet pour piece d'horlogerie
CN202280083435.XA CN118575135A (zh) 2021-12-21 2022-12-14 用于使钟表的物体活动的机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21216235.8A EP4202573B1 (de) 2021-12-21 2021-12-21 Mechanismus zur animation eines objekts für uhr

Publications (2)

Publication Number Publication Date
EP4202573A1 EP4202573A1 (de) 2023-06-28
EP4202573B1 true EP4202573B1 (de) 2024-09-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21216235.8A Active EP4202573B1 (de) 2021-12-21 2021-12-21 Mechanismus zur animation eines objekts für uhr

Country Status (3)

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EP (1) EP4202573B1 (de)
CN (1) CN118575135A (de)
WO (1) WO2023117622A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4734895A (en) 1987-07-20 1988-03-29 Jewelmasters, Inc. Novelty watch construction
US5457663A (en) * 1993-12-10 1995-10-10 Mejaski; Stephen G. Astronomical time clocks
JP3197824B2 (ja) * 1996-07-31 2001-08-13 リズム時計工業株式会社 回転飾り装置
FR2988866B1 (fr) 2012-04-02 2014-12-26 Daniel Messerli Montre analogique munie d’un mobile decoratif
EP3772674B1 (de) * 2019-08-07 2021-12-15 CompliTime SA Schmuck- oder juwelier-artikel umfassend einen animationsmechanismus eines objekts

Also Published As

Publication number Publication date
CN118575135A (zh) 2024-08-30
EP4202573A1 (de) 2023-06-28
WO2023117622A1 (fr) 2023-06-29

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