EP2784602B1 - Welle eines beweglichen Elements mit optimierter Geometrie in einem magnetischen Umfeld - Google Patents

Welle eines beweglichen Elements mit optimierter Geometrie in einem magnetischen Umfeld Download PDF

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Publication number
EP2784602B1
EP2784602B1 EP13161123.8A EP13161123A EP2784602B1 EP 2784602 B1 EP2784602 B1 EP 2784602B1 EP 13161123 A EP13161123 A EP 13161123A EP 2784602 B1 EP2784602 B1 EP 2784602B1
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EP
European Patent Office
Prior art keywords
pivot axis
balance
field
magnetization
shaft
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EP13161123.8A
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English (en)
French (fr)
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EP2784602A1 (de
Inventor
Alain Zaugg
Davide Sarchi
Polychronis Karapatis (Nakis)
Marco Verardo
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.)
Montres Breguet SA
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Montres Breguet 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
Priority to CH00665/13A priority Critical patent/CH707791B1/fr
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP13161123.8A priority patent/EP2784602B1/de
Priority to EP14713783.0A priority patent/EP2979140B1/de
Priority to US14/779,883 priority patent/US9372473B2/en
Priority to PCT/EP2014/055268 priority patent/WO2014154511A2/fr
Priority to JP2016504561A priority patent/JP6034991B2/ja
Priority to CN201480018602.8A priority patent/CN105074585B/zh
Publication of EP2784602A1 publication Critical patent/EP2784602A1/de
Priority to HK16105565.6A priority patent/HK1217774A1/zh
Application granted granted Critical
Publication of EP2784602B1 publication Critical patent/EP2784602B1/de
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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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • 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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields

Definitions

  • the invention relates to a mechanism comprising a mobile, comprising a shaft, intended to pivot about a pivot axis and comprising at least one projecting part of greater radius about said pivot axis, said shaft being made of steel, said oscillating mobile around a rest position defined by a rest plane passing through said pivot axis, said mobile being biased towards said rest position by elastic return means, said mechanism having a preferred direction of magnetization.
  • the invention also relates to a watch movement comprising at least one such mechanism.
  • the invention also relates to a watch comprising at least one such watch movement, and / or comprising at least one such mechanism.
  • the invention relates to the field of watch mechanisms, in particular the field of regulating members, in particular for mechanical watches.
  • the regulating organ of a mechanical watch is constituted by a harmonic oscillator, the sprung balance, whose oscillation natural frequency depends mainly on the inertia of the balance and the elastic rigidity of the spiral.
  • the oscillations of the sprung balance, otherwise damped, are maintained by the pulses provided by an escapement generally composed of one or two pivoting mobiles.
  • these pivoting mobiles are the anchor and the escape wheel.
  • the march of the watch is determined by the frequency of the sprung balance and by the disturbance generated by the impulse of the escapement, which generally slows down the natural oscillation of the sprung balance and thus causes a delay in running.
  • gait defects related to the residual effect of the field
  • the origin of these defects is permanent magnetization fixed ferromagnetic components of the movement or the covering and the permanent or transient magnetization of the moving magnetic components forming part of the regulating member (balance spring) and / or the escapement.
  • magnetically or magnetically permeable mobile components (balance, hairspring, exhaust) are subjected to magnetostatic torque and / or magnetostatic forces.
  • these interactions modify the apparent rigidity of the sprung balance, the dynamics of the escape mobiles and the friction. These modifications produce a fault that can range from a few tens to a few hundred seconds a day.
  • the interaction of the watch movement with the external field, during the exhibition, can also lead to the stop of the movement.
  • the arrest in the field and the residual run-out are not correlated, because the arrest in field depends on the transient magnetization, sub-field, of the components (and therefore of the permeability and the saturation field). components), while the residual run fault depends on the residual magnetization (and therefore, mainly, the coercive field of the components) which can be low even in the presence of a significant magnetic permeability.
  • the anchor body and the escape wheel can be made of very low paramagnetic materials, without their mechanical performance being affected.
  • the shafts of the mobiles require very good mechanical performances (good tribology, low fatigue) to allow an optimal and constant pivoting in the time, and it is therefore preferable to manufacture them in hardened steel (typically carbon steel type 20AP or the like).
  • hardened steel typically carbon steel type 20AP or the like.
  • such steels are materials sensitive to magnetic fields because they have a high saturation field combined with a high coercive field.
  • the balance, anchor and escape wheel shafts are currently the most critical components in the face of the magnetic disturbances of the watch.
  • the balance shaft is the most sensitive component for chronometry (residual effect), because a disturbing torque of magnetic origin acting on the shaft directly modifies the oscillation frequency of the balance-spring, and this modification is, in principle, unlimited (it depends solely on the intensity of the residual magnetic fields and the rigidity of the hairspring), while a disturbance of the exhaust function gives a defect limited by the delay nominal exhaust (the resulting disturbance can not be much larger than the disturbance already produced by the exhaust under normal conditions).
  • the document FR 2 275 815 A1 NIVAROX describes the manufacture of a balance shaft from a profile with several wings distributed around the pivot axis., And a variant with two curvilinear wings.
  • the document FR 2 090 784 A5 FEINMETALL describes the assembly of a spiral to a balance having a crossbar with two substantially symmetrical wings.
  • the document JP S62 63884 A ZENKOSHA TOKEI describes the machining by cutting a balance with two wings.
  • the document WO 01/77759 A1 DETRA describes an escapement device comprising a gear train for transmitting energy to an oscillator capable of receiving this energy and transmitting an oscillation frequency, and first means capable of producing at least a first portion of the energy transmitted by this gear train and intended to feed the oscillator, where the first means are configured so as to provide a substantially variable mechanical torque as a function of the angular displacement angle of the gear train, this mechanical torque having at least one stable position, and at least one an unstable position, over a period of angular displacement of the gear train.
  • these first means produce a variable magnetic torque as a function of time, by the combination of a magnetized rotor diametrically, with a stator having cells at its bore receiving this rotor.
  • the invention proposes to limit the magnetic interaction on a mobile shaft, in particular on a balance shaft.
  • the invention relates to a mechanism according to claim 1.
  • said mechanism is an escape mechanism
  • said mobile is a pendulum brought to said rest position by at least one spiral spring
  • said shaft is a balance shaft
  • the invention also relates to a watch movement comprising at least one such mechanism.
  • the invention also relates to a watch comprising at least one such watch movement, and / or comprising at least one such mechanism.
  • the invention more particularly the field of clocking devices for mechanical watches.
  • the invention proposes to limit the magnetic interaction on a mobile shaft, in particular on a balance shaft.
  • the invention thus relates to a mobile shaft with optimized geometry in a magnetic environment.
  • the invention can allow watches with spiral, anchor body and nonmagnetic escape wheel to resist, without stopping, magnetic fields of high intensity, of the order of 0.5 Tesla, without the mechanical performances (chronometry and aging of the mobiles) are affected.
  • the implementation of the invention makes it possible to reduce the residual effect of watches with spiral, anchor body and non-magnetic escape wheel to less than one second per day.
  • axis refers to a virtual geometric element such as a pivot axis, and “shaft” to a real mechanical element, made in one or more parts.
  • a pair of pivots 2A and 2B aligned and reported on either side of a median portion 6 of a mobile 10, to guide it in pivoting is also called “tree”.
  • magnetically permeable materials are defined as materials having a relative permeability that is between 10 and 10,000, such as steels, which have a relative permeability close to 100 for balance shafts for example, or close to 4000 for steels commonly used in electrical circuits, or other alloys whose relative permeability reaches values from 8000 to 10000.
  • Magnetic materials for example in the case of polar masses, will be called materials capable of being magnetized so as to have a residual field of between 0.1 and 1.5 Tesla, such as for example the "Neodymium Iron Boron". a magnetic energy density Em close to 512 kJ / m 3 and giving a residual field of 0.5 to 1.3 Tesla. A lower residual field level, towards the lower part of the range can be used when combining, in a magnetization couple, such a magnetic material with a magnetically permeable antagonist component of high permeability, closer to 10000, in the range of 100 to 10,000.
  • Magnetic materials will be referred to as materials having a relative magnetic permeability of between 1.0001 and 100, for example for spacers interposed between a magnetic material and a magnetically permeable antagonist component, or alternatively between two magnetic materials, for example a spacer between a component and a polar mass.
  • weakly paramagnetic materials are: aluminum, gold, brass or the like (magnetic permeability less than 2).
  • Magnetic materials will be referred to as materials of relative magnetic permeability less than 1 (negative magnetic susceptibility, less than or equal to -10 -5 ), such as graphite or graphene.
  • soft magnetic materials not to say non-magnetic, especially for shielding, materials with high permeability but high saturation, because we do not want them to be permanently magnetized: they must drive the best possible the field, so as to reduce the field to their outside. Such components can then also protect a magnetic system from external fields.
  • These materials are preferably chosen to have a relative magnetic permeability of between 50 and 200, and with a saturation field greater than 500 A / m.
  • Non-magnetic have a relative magnetic permeability very slightly greater than 1, and less than 1.0001, as typically silicon, diamond, palladium and the like. These materials can generally be obtained by MEMS technologies or by the "LIGA” process.
  • the invention relates to a watchmaking tree 1, for a mobile 10, and optimized for the operation of this mobile 10 in an environment where there is a residual magnetic field in a preferred direction of magnetization DAP.
  • this mobile 10 is a pendulum.
  • the person skilled in the art will be able to extrapolate the invention to other watchmobiles for which he wishes to avoid the influence of a residual magnetic field.
  • a standard balance shaft 1 relatively standard in the watch industry, is not optimized to limit its magnetization under an external field.
  • the median part 6 of the shaft 1, having a larger radius RMAX is strongly magnetized by a magnetic field orthogonal or oblique with respect to the direction of the pivot axis D. Because of this magnetization, in presence of an environmental field (external field or created by the magnetized components of the movement or the watch), the shaft 1 is subjected to a large magnetic torque.
  • the rocker 10 is part of an escapement mechanism 20, in a movement 30 of a watch 40.
  • the invention proposes to modify the geometry of the balance shaft 1, by modifying the aspect ratio of the so-called projecting part 11, which is the part of larger radial size of this balance shaft, by giving it, in projection on a plane perpendicular to the pivot axis D of the shaft 1 of the balance 10, a form ratio very different from 1, preferably greater than or equal to 2.
  • the idea is to reduce one of the two dimensions x or y (in projection in a plane perpendicular to the pivot axis D), the simplest way is to locally limit the shaft 1 by two surfaces 14, 15, substantially parallel to the axis D, which surfaces 14 and 15 are preferably two planes parallel to the axis D; indeed, if the surfaces, especially the planes, are not parallel, then there remains a larger part which can be magnetized more than the rest.
  • These two surfaces 14 and 15 are preferably very close to each other, to reduce the magnetization in this direction, and to well define a single preferred direction of magnetization in the xy plane.
  • the projection of this projecting portion 11 along a plane perpendicular to the pivot axis D of the balance 10, has a profile 12, which is inscribed in a rectangle R symmetrical with respect to two orthogonal axes, of which a principal axis DP according to which extends the largest dimension of this protruding portion 11.
  • the aspect ratio is the ratio between the two dimensions of the rectangle, length LR and width LA.
  • the balance shaft 1 has no revolution symmetry.
  • this main axis DP which extends the largest dimension of this projecting portion 11 is in the orthogonal position relative to the direction of preferential magnetization DA of the environment some movement.
  • This main axis DA is generally determined by bridges, bars, screws, or the like; it depends directly on the construction and generally it is quite obvious, by the examination of the form factor of the steel components near the axis; in ambiguous situations, it is sufficient to perform a finite element simulation or equivalent loads to determine it easily.
  • This so-called “rest” position of the balance corresponds to that it occupies when the hairspring is at rest: this is the position in which the movement is the least often, but, as explained in the rest of the presentation, is the position medium and, for very strong external fields, it is the position that defines the resulting magnetization.
  • the balance plate has its largest dimension perpendicular to the exhaust line, which makes it possible to maximize the surface effects in the face of the volume effects, so as to minimize magnetization in the direction of rotation. field and, hence, the "compass" effects that create a disruptive couple.
  • the figure 1 shows a pendulum shaft 1 with a magnetically optimized realistic geometry.
  • the widest portions, which are used as a support, have an important aspect ratio, the largest dimension being oriented with its main axis DP in the direction orthogonal to the direction of preferential magnetization DA of the environment of the movement.
  • This tree 1 is drawn on a conventional balance-shaft base, with spans turned pivots, supports: ferrule support, serge, plate, double tray, or others.
  • the portion of larger diameter 11 serves to support a face of a serge 50, not shown in the figure, the shaft 1 having a bearing surface 13 of this serge;
  • the profile 12 is here produced by machining, in particular by milling or turning, or the like, of two opposing surfaces 14 and 15, as also visible on the figure 6 these surfaces are planar surfaces in a simplified and preferred embodiment.
  • the figure 2 shows a balance shaft 1 with magnetically optimized geometry schematized.
  • the widest portions which are used as a support, have an important aspect ratio, the largest dimension being oriented with its main axis DP in the direction orthogonal to the direction of preferential magnetization DA of the environment of the movement. If certain spans, including the pivots, remain of revolution, the projecting portion 11 is here of prismatic shape, with the opposing surfaces 14 and 15, and end surfaces 16 and 17 on the short sides of the envelope rectangle of the profile 12, which are all flat, in a particular embodiment.
  • the figure 3 illustrates an optimized alternative geometry, derived from that of the figure 2 .
  • the longest support parts, the main projection 11, but also the other parts 11A, 11B are cut and include cutouts 18, especially in the form of slots, to induce a partial self-demagnetization in absence of the external field.
  • These cuts 18 extend in a direction parallel to the main axis DP.
  • the longest parts, used as support have an important aspect ratio, the largest dimension being oriented with its main axis DP in the direction orthogonal to the direction of preferential magnetization DA of the environment of the movement .
  • the depth of the cuts 18 is greater than or equal to half the length of the portion 11 or 11A considered exceeding the average radius of the cylindrical portion of the shaft 1.
  • the shaft 1 according to the invention is symmetrical with respect to a plane passing through the pivot axis D and parallel to the direction of the main axis DP.
  • the surfaces of revolution 19, including the pivots and the cylindrical body of the balance shaft may be identical to the pivots and the cylindrical body of a traditional balance shaft: the mechanical performance of the component are therefore unaltered compared to the balance shafts existing.
  • the shafts shown in the figures have a preferred direction of magnetization parallel to the main axis DP and chosen so as to be orthogonal to the direction of preferential magnetization DA of the environment of the movement (when the balance spring is at rest ).
  • the remanent field will be oriented preferably like the external field while the remanent field created in the environment of the movement will be oriented according to the orientation of the fixed ferromagnetic components (bars, screws, bridges), according to the direction of preferential magnetization DA.
  • a residual magnetic torque acts on the balance shaft as on a compass needle.
  • the residual effect for a geometrically optimized shaft 1 according to the invention is different from that observed for a traditional tree.
  • the main axis DP of the shaft 1 is orthogonal to the preferred direction of magnetization DAP of the environment, for almost all possible orientations of the external field (except the orientation in the preferred direction of magnetization DAP of the environment) the resulting residual magnetic torque on the shaft1 is an even function of the oscillation angle, which makes the residual run fault almost null.
  • the shaft is magnetized in the same direction, thus orthogonal to the main axis DP, but in this case its magnetization is low, less than 0.2 T, as shown in figure 4 which illustrates the distribution of the remanent field, after magnetization at 0.2 T in the direction orthogonal to the main axis DP, of an optimized steel pendulum shaft 1 AP.
  • the magnetic torque is, in this case, an odd function of the oscillation angle, but it is between 10 and 100 times (depending on the geometry) lower than the torque acting on a traditional tree, as visible on the figure 5 , which illustrates, in the form of a graph, the comparison of the magnetic pairs exerted on a traditional balance shaft according to the graph GT shown in broken lines, and on a tree 1 optimized according to the invention according to the graph GO is shown in a line continued.
  • On the abscissa is the angle in degrees, and in ordinate the torque exerted on the balance, in mN.mm.
  • the residual run error is then reduced by a factor between 3 and 10.
  • the material of the shaft 1 is magnetically homogeneous in the simple embodiment illustrated by the figures. This particular embodiment does not exclude the embodiments where the shaft 1 is magnetically inhomogeneous.
  • the invention thus makes it possible to modify the geometry of the balance shaft (and not the whole balance), because the shaft is generally the only magnetic component, which is difficult to replace with a non-magnetic material. And it is the influence of the tree itself that must be reduced, this goal is achieved by the invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Soft Magnetic Materials (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Magnetic Treatment Devices (AREA)

Claims (8)

  1. Uhrenmechanismus (20), umfassend eine bevorzugte Magnetisierungsrichtung (DA) und umfassend ein Uhrendrehteil (10) mit einer Welle (1), die dazu bestimmt ist, sich um eine Drehachse (D) zu drehen, und mindestens einen vorstehenden Teil (11) mit größerem Radius (RMAX) um die Drehachse (D) aufweist, wobei mindestens der vorstehende Teil (11) beiderseits der Drehachse (D) durch zwei Oberflächen (14; 15) begrenzt ist, die in der Projektion auf eine Ebene senkrecht zu der Drehachse (D) ein Profil (12) definieren, das in ein Rechteck (R) einbeschrieben ist, dessen Verhältnis von Länge (LR) zu Breite (LA) ein Formverhältnis definiert, das größer oder gleich 2 ist, wobei die Richtung der Länge (LR) eine Hauptachse (DP) definiert, wobei mindestens ein Teil (11, 11A) des in das Rechteck einbeschriebenen und auf zwei gegenüberliegenden Seiten durch die beiden Oberflächen (14; 15) begrenzten Profils mindestens einen Ausschnitt (18) aufweist, der auf die Drehachse (D) zentriert ist und sich längs der Hauptachse (DP) erstreckt, wobei die Welle (1) aus Stahl ist und das Drehteil (10) dafür ausgelegt ist, um eine Ruheposition zu schwingen, die durch eine Ruheebene definiert ist, die durch die Drehachse (D) verläuft, und wobei in der Ruheposition die Hauptachse (DP) eine in Bezug auf die Ruheebene bestimmte Winkelposition einnimmt, wobei das Drehteil (10) durch elastische Rückstellmittel in die Ruheposition zurückgestellt wird und wobei in der Ruheposition die Hauptachse (DP) zu der bevorzugten Magnetisierungsrichtung (DA) senkrecht ist.
  2. Mechanismus (20) nach Anspruch 1, dadurch gekennzeichnet, dass die Welle (1) mindestens einen weiteren Teil (11A) umfasst, der in der Projektion auf eine Ebene senkrecht zu der Drehachse (D) ein Profil aufweist, das in das auf zwei gegenüberliegenden Seiten durch die beiden Oberflächen (14; 15) begrenzte Rechteck einbeschrieben ist.
  3. Mechanismus (20) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die beiden Oberflächen (14; 15) in Bezug auf die Drehachse (D) symmetrisch sind.
  4. Mechanismus (20) nach Anspruch 3, dadurch gekennzeichnet, dass die beiden Oberflächen (14; 15) eben und zu der Drehachse (D) parallel sind.
  5. Mechanismus (20) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Welle (1) ein erhöhtes Sättigungsfeld mit einem Wert (Bs) größer als 1 T, eine maximale magnetische Permeabilität (µR) größer als 50 und ein Koerzitivfeld (Hc) größer als 3 kA/m aufweist.
  6. Mechanismus (20) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Mechanismus (20) ein Hemmungsmechanismus ist, dass das Drehteil (10) eine Unruh ist, die so angeordnet ist, dass sie durch mindestens eine Spiralfeder in die Ruheposition zurückgestellt wird, und dass die Welle (1) eine Unruhwelle ist.
  7. Uhrwerk (30), umfassend mindestens einen Mechanismus (20) nach einem der Ansprüche 1 bis 6.
  8. Uhr (40), umfassend mindestens ein Uhrwerk (30) nach Anspruch 7 und/oder mindestens einen Mechanismus (20) nach einem der Ansprüche 1 bis 6.
EP13161123.8A 2013-03-26 2013-03-26 Welle eines beweglichen Elements mit optimierter Geometrie in einem magnetischen Umfeld Active EP2784602B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP13161123.8A EP2784602B1 (de) 2013-03-26 2013-03-26 Welle eines beweglichen Elements mit optimierter Geometrie in einem magnetischen Umfeld
CH00665/13A CH707791B1 (fr) 2013-03-26 2013-03-26 Arbre de mobile à géométrie configurée pour environnement magnétique.
US14/779,883 US9372473B2 (en) 2013-03-26 2014-03-17 Timepiece mechanism comprising a movable oscillating component with optimised geometry in a magnetic environment
PCT/EP2014/055268 WO2014154511A2 (fr) 2013-03-26 2014-03-17 Arbre de mobile a géométrie optimisée en environnement magnétique
EP14713783.0A EP2979140B1 (de) 2013-03-26 2014-03-17 Mobile spindel mit in einer magnetischen umgebung optimierter form
JP2016504561A JP6034991B2 (ja) 2013-03-26 2014-03-17 磁性環境において最適化されたジオメトリを有する可動発振構成部品を備える時計機構
CN201480018602.8A CN105074585B (zh) 2013-03-26 2014-03-17 具有在磁性环境中优化的几何形状的可移动构件的心轴
HK16105565.6A HK1217774A1 (zh) 2013-03-26 2016-05-16 具有在磁性環境中優化的幾何形狀的可移動構件的心軸

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Application Number Priority Date Filing Date Title
EP13161123.8A EP2784602B1 (de) 2013-03-26 2013-03-26 Welle eines beweglichen Elements mit optimierter Geometrie in einem magnetischen Umfeld

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EP2784602A1 EP2784602A1 (de) 2014-10-01
EP2784602B1 true EP2784602B1 (de) 2018-12-05

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EP13161123.8A Active EP2784602B1 (de) 2013-03-26 2013-03-26 Welle eines beweglichen Elements mit optimierter Geometrie in einem magnetischen Umfeld
EP14713783.0A Active EP2979140B1 (de) 2013-03-26 2014-03-17 Mobile spindel mit in einer magnetischen umgebung optimierter form

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US (1) US9372473B2 (de)
EP (2) EP2784602B1 (de)
JP (1) JP6034991B2 (de)
CN (1) CN105074585B (de)
CH (1) CH707791B1 (de)
HK (1) HK1217774A1 (de)
WO (1) WO2014154511A2 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2784601B1 (de) * 2013-03-26 2017-09-13 Montres Breguet SA Welle eines drehbaren Elements für Uhrwerk
EP3208664B1 (de) * 2016-02-19 2023-08-16 Omega SA Uhrwerk oder uhr ohne magnetische signatur
EP3605243A1 (de) * 2018-07-31 2020-02-05 Montres Breguet S.A. Uhr-anzeigemechanismus mit variabler geometrie und elastischem zeiger

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Also Published As

Publication number Publication date
CH707791A2 (fr) 2014-09-30
US9372473B2 (en) 2016-06-21
WO2014154511A4 (fr) 2015-02-19
WO2014154511A2 (fr) 2014-10-02
JP6034991B2 (ja) 2016-11-30
CN105074585A (zh) 2015-11-18
EP2979140A2 (de) 2016-02-03
EP2784602A1 (de) 2014-10-01
CH707791B1 (fr) 2017-05-15
US20160085214A1 (en) 2016-03-24
EP2979140B1 (de) 2017-10-25
CN105074585B (zh) 2017-10-24
JP2016517955A (ja) 2016-06-20
HK1217774A1 (zh) 2017-01-20
WO2014154511A3 (fr) 2014-12-31

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