EP2784601B1 - Welle eines drehbaren Elements für Uhrwerk - Google Patents

Welle eines drehbaren Elements für Uhrwerk Download PDF

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Publication number
EP2784601B1
EP2784601B1 EP13161124.6A EP13161124A EP2784601B1 EP 2784601 B1 EP2784601 B1 EP 2784601B1 EP 13161124 A EP13161124 A EP 13161124A EP 2784601 B1 EP2784601 B1 EP 2784601B1
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EP
European Patent Office
Prior art keywords
arbor
field
shaft
pivot axis
magnetic
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.)
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Application number
EP13161124.6A
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English (en)
French (fr)
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EP2784601A1 (de
Inventor
Alain Zaugg
Davide Sarchi
Nakis Karapatis
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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.)
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Publication date
Priority to EP13161124.6A priority Critical patent/EP2784601B1/de
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to CH00664/13A priority patent/CH707790B1/fr
Priority to EP14710311.3A priority patent/EP2979139B1/de
Priority to PCT/EP2014/055267 priority patent/WO2014154510A2/fr
Priority to US14/779,773 priority patent/US9915923B2/en
Priority to JP2016504560A priority patent/JP6315727B2/ja
Priority to CN201480018533.0A priority patent/CN105103057B/zh
Publication of EP2784601A1 publication Critical patent/EP2784601A1/de
Priority to HK16105845.8A priority patent/HK1217776A1/zh
Application granted granted Critical
Publication of EP2784601B1 publication Critical patent/EP2784601B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G04B13/026—
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/042—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using mechanical coupling
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements

Definitions

  • the invention relates to a mobile rotating watch-making shaft, said shaft being made in one or more aligned parts.
  • the invention also relates to a rotating clock watch comprising such a shaft.
  • the invention also relates to a clockwork mechanism comprising such a shaft and / or such a mobile, including an escape mechanism.
  • the invention also relates to a watch movement comprising such a shaft and / or such a mobile and / or such a mechanism.
  • the invention also relates to a timepiece, including a watch, including such a shaft and / or such a mobile, and / or such a mechanism, and / or such a movement.
  • 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 movement 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 the natural oscillation of the sprung balance and therefore causes a delay in running.
  • gait defects related to the residual effect of the field
  • the origin of these defects is the permanent magnetization of the fixed ferromagnetic components of the movement or the cladding and the permanent or transient magnetization of the moving magnetic components forming part of the regulating organ (sprung balance) and / or the exhaust .
  • 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 document WO 2004/008258 A2 DETRAPATEK PHILIPPE describes a rotor-stator system consisting of a wheel consisting of a pre-magnetized permanent magnet in a fixed diametral direction, as well as an oscillator maintenance solution.
  • This document discloses a production shaft of an electromagnetic torque on which are mounted a rotor and a second pinion, which are not parts of the shaft but are mounted on the shaft, this shaft being a standard shaft without any property specific magnetic.
  • parts mounted on the balance shaft are formed from a material selected from the group consisting of monel, silver, nickel, copper, a beryllium alloy, and a copper-manganese alloy or a nickel alloy.
  • the anchor and the escape wheel are formed of a material selected from the group consisting of silver, nickel, a copper-beryllium alloy, and a nickel alloy. or manganese-copper.
  • the balance shaft comprises trunnions, and, with the exception of the bearing pins, is integrally formed from a material having a magnetic permeability ⁇ less than 1.01.
  • the set of the balance shaft is formed of a material having a magnetic permeability ⁇ less than or equal to 1.01.
  • the balance shaft may, again, be made of a hardenable bronze.
  • the document CH 705 655 A2 ROLEX describes the minimization of the residual effect, that is to say, of the difference of market that a watch subjected to variations of external magnetic fields. This minimization is correlated as a surprising effect, with the geometry of the axis of the balance.
  • this document describes an oscillator comprising a spiral made of paramagnetic or diamagnetic material, and an assembled balance wheel comprising a shaft on which are mounted a balance, a plate, a shell integral with the spiral, and where, or the maximum diameter of the shaft is less than 3.5 / 2.5 / 2.0 times the minimum diameter of the shaft on which one of the other elements is mounted, or the maximum diameter of the shaft is less than 1.6 / 1.3 times the maximum diameter of the shaft on which is mounted one of the other elements.
  • This document discloses a tree having homogeneous intrinsic magnetic properties, in this case a strongly ferromagnetic tree. However, the plateau is not an integral part of the tree.
  • the invention proposes to limit the magnetic interaction on the shafts of a watch mechanism, within a movement incorporated into a timepiece, in particular a watch.
  • the invention relates to a rotating swivel watchdog shaft according to claim 1.
  • the invention also relates to a rotating clock watch comprising such a shaft.
  • the invention also relates to a clockwork mechanism comprising such a shaft and / or such a mobile, including an escape mechanism.
  • the invention also relates to a watch movement comprising such a shaft and / or such a mobile and / or such a mechanism.
  • the invention also relates to a timepiece, including a watch, including such a shaft and / or such a mobile, and / or such a mechanism, and / or such a movement.
  • the aim of the invention is to limit the magnetic interaction on the shafts 1 of the mobiles 10 of a watch mechanism 20, within a movement 30 incorporated in a timepiece 40, in particular a watch, and, in particular for maintenance (exhaust) and control (sprung balance) components which constitute a preferred application on the balance wheel, anchor and escape wheel shafts.
  • the invention can allow watches with spiral, anchor body and nonmagnetic escape wheel to withstand, without stopping, magnetic fields of the order of a Tesla, and without the mechanical performance (chronometry and mobile aging) are affected.
  • 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.
  • the geometry of the shaft of a pendulum is generally more complex than the geometry of the anchor rod, and that of the shaft of the escape wheel.
  • Two alternative variants, non-limiting, using the same principle are illustrated for the case of a balance shaft.
  • Their generalization in the case of the anchor rod and the escape wheel, or other mobiles, will be obvious to the skilled person.
  • 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 of between 10 and 10,000, such as steels, which have a relative permeability close to 100 for balance shafts for example. or around 4000 for steels commonly used in electrical circuits, or other alloys whose relative permeability reaches values of 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 shaft 1 of rotating mobile watch 10 is made of one or more parts 2, which are then aligned on a pivot axis D.
  • this tree 1 is magnetically inhomogeneous.
  • this shaft 1 is magnetically inhomogeneous, with a variation of the intrinsic magnetic properties of this shaft 1, either in the axial direction of the pivot axis D of the shaft 1, or radially with a symmetry of revolution relative to to this pivot axis D, both in the axial direction of the pivot axis D and radially with a symmetry of revolution with respect to this pivot axis D.
  • the shaft 1 is magnetically inhomogeneous with a variation of the intrinsic magnetic properties radially with respect to the pivot axis D.
  • this variation of the intrinsic magnetic properties of the shaft 1 is made radially with a symmetry of revolution with respect to the pivot axis D.
  • inhomogeneous tree in the radial direction is meant here that the magnetic properties of the shaft vary in the radial direction from the center of the shaft to the periphery (while the shaft may or may not be magnetically homogeneous in the axial direction).
  • central zone 3 Only the material located in the heart of the tree, in an area hereinafter called central zone 3, that is to say in the vicinity of the pivot axis D, has a high saturation field (Bs> 1 T ), a magnetic permeability ⁇ R maximum greater than 50, and a coercive field Hc greater than 3 kA / m (all these properties are typical of 20AP steel preferably used for pivoting shafts because of good mechanical performance). Naturally, if other materials are used, these threshold values must be adapted by routine tests.
  • peripheral zone 4 While the material on the periphery of the shaft, in a zone hereinafter referred to as the peripheral zone 4, is either weakly paramagnetic or ferromagnetic with a low saturation field (Bs ⁇ 0.5 T), a low maximum magnetic permeability ⁇ R ⁇ 10, and a low coercive field.
  • FIG 1 is a three-dimensional diagram of the first variant.
  • the balance shaft 1 is composed of a strongly ferromagnetic central zone 3 (grayed out) and a 4paramagnetic or weakly ferromagnetic peripheral zone (in white).
  • the two regions (strongly ferromagnetic in central zone 3, and weakly paramagnetic in peripheral zone 4) are precisely separated by a steep interface zone 7: the interface between the two regions 3 and 4 may however have a finite width , in correspondence of a regular gradient of the magnetic properties, without the results being affected.
  • the strongly ferromagnetic region in the central zone 3 in the heart of the shaft 1 is preferably contained in a cylinder with a radius less than 100 micrometers (and centered on the pivot axis D) to achieve the desired performance.
  • the magnetic inhomogeneity described here can be obtained by combining two different materials (by brazing, welding or depositing one material on the other), or, in the case where an alloy is used (for example, steel carbon), by the heat treatment or under electric or magnetic field of all or part of the finished component.
  • the figure 3 shows the remanent field of a radially inhomogeneous balance shaft 1 according to the first variant of the invention.
  • This tree 1 has the same geometry as that of the figure 2 , but only the heart, in central zone 3, is made of steel AP, while its periphery, in peripheral zone 4, is weakly paramagnetic.
  • the shaft is subjected to an external field of 0.2 T oriented in the direction orthogonal to the pivot axis D.
  • the remanent field is about 0.4 T and concentrated in the core in central zone 3.
  • the magnetic shaft of the balance is subjected to a magnetic torque which tends to orient it in the direction of the external field.
  • the moment of this pair may be high enough to stop the movement of this balance-spring.
  • the homogeneous tree of the figure 2 is subjected to a magnetic torque, whose moment is more than 10 times higher than that which is applied to the inhomogeneous tree of the figure 3 .
  • the shaft 1 according to the invention comprises a field of remanent field on a very small radius, while in the prior art areas of high remanent field are precisely in the areas of larger radius.
  • Stopping movement occurs if the torque acting on the shaft is greater than the restoring moment exerted by the hairspring for angles lower than the lifting angle, and the maintenance torque applied by the anchor to the balance.
  • the figure 4 illustrates the comparison of the magnetic couples exerted on these two models of balance shafts: the graph G2 corresponding to the homogeneous tree of the figure 2 is shown in broken lines, and the graph G3 corresponding to the inhomogeneous tree 1 according to the invention (first variant of the figure 3 , or second variant of the figure 7 explained later) is shown in solid lines.
  • On the abscissa is the angle in degrees, and in ordinate the torque exerted on the balance, in mN.mm. In both cases, the torque varies sinusoidally with the rotation angle of the balance spring (here the zero is fixed arbitrarily).
  • the homogeneous tree of the figure 2 is subjected to a magnetic torque much greater than the pair of the spiral and the maintenance torque. In this case, the sprung balance will be stopped for a field smaller than 0.2 T.
  • the inhomogeneous shaft 1 according to the first variant of the invention is subjected to a torque less than the torque exerted by the hairspring in the lifting angle ( ⁇ 30 °) and the maintenance torque. In this case, the sprung balance will not be stopped under a field of 0.2 T.
  • the figure 5 illustrates the comparison of the magnetic pairs on a balance shaft, homogeneous according to the prior art, and inhomogeneous according to the invention (first variant, or second variant exposed later), imposed by an external field of 0.2 T, compared to torque of the spiral and the torque applied to the balance by the anchor.
  • the figure 5 illustrates the comparison, on a small angular amplitude, of the magnetic couples exerted on these two models of balance shafts: the graph G2 corresponding to the homogeneous tree is shown in broken lines, and the graph G3 corresponding to the inhomogeneous tree is shown in solid line.
  • the interrupted mixed line G4 represents the return torque exerted by the spiral.
  • the maintenance torque, applied to the balance by the anchor is represented in the form of a horizontal G5 dotted line.
  • the shaft 1 of the balance 10 is immersed in the magnetic field created by the fixed ferromagnetic components of the movement 30, or / and the timepiece 40, of which it forms part. .
  • the shaft 1 is then subjected to a torque similar to that shown in FIG. figure 4 but from a weaker moment. This disturbance torque is responsible for the residual running error.
  • a movement equipped with an inhomogeneous shaft 1 according to the first variant of the invention is therefore affected by a walking defect which is between 3 and 10 times less than that which affects a movement equipped with a traditional homogeneous tree.
  • the second variant of the invention relates to a shaft which is inhomogeneous in the axial direction, parallel to the axis of pivoting of the shaft.
  • the inhomogeneity of the magnetic properties is this time realized in the axial direction.
  • the ends 2 of the shaft 1, constituted by the pivots 2A and 2B, which must have optimum mechanical properties, are generally made of magnetic materials, while the median part 6 of the shaft 1 is of weakly paramagnetic material.
  • the length (in the axial direction) accumulated of the magnetic parts of the shaft 1 is advantageously less than a third of the total length of the shaft 1.
  • the difference in length between the magnetic parts is advantageously kept below 10%.
  • This second variant is schematized on the figure 6 , on which preferably only the pivots 2A and 2B are made of ferromagnetic material.
  • Tree 1 of the figure 6 comprises, in the direction of the pivot axis D, a median portion 6 surrounded on either side by two end zones 8,. And only these end zones 8, preferably made of pivoted steel, have a high saturation field of Bs greater than 1 T, a maximum magnetic permeability ⁇ R greater than 50, and a coercive field Hc greater than 3 kA / m. While the material in the middle part 6 is either weakly paramagnetic or ferromagnetic with a low saturation field Bs of less than 0.5 T, a low maximum magnetic permeability ⁇ R less than 10, and a low coercive field.
  • the remanent field is smaller (and more localized) than in the case of a homogeneous tree according to the figure 2 as shown in figure 7 .
  • This figure 7 represents the remanent field, after magnetization at 0.2 T, of an inhomogeneous balance shaft 1 according to the second variant of the invention.
  • the pivots are made of 20 AP steel.
  • the middle part 6 is weakly paramagnetic.
  • the torque acting on the shaft 1 in this case is equivalent to that obtained for the first variant ( Figure 4 and Figure 5 ).
  • the desired magnetic inhomogeneity can be obtained by combining two different materials (by brazing, welding or depositing a material on the other) or, in the case where an alloy is used (for example, carbon steel), by heat treatment or under electric or magnetic field of all or part of the finished component.
  • the shaft 1 is then magnetically inhomogeneous with a variation of its intrinsic magnetic properties both in the axial direction of the pivot axis D and radially with respect to this pivot axis D.
  • the invention is easy to implement and inexpensive, since, in practice, a simple two-material embodiment makes it possible to obtain the desired result.
  • a balance rod constituting the peripheral zone 4 which is produced, according to the desired inertia, of aluminum, gold, brass or the like, while the central zone 3 is made in the form of a 20AP steel bar or similar: a low inertia beam is obtained with a light alloy serge, in particular of aluminum, easy to machine and to drill through, and a core of drawn or drawn steel, or cleavage, with a diameter less than 100 micrometers.
  • a rocker according to the second variant and with very low inertia has a machined middle portion 6 of aluminum alloy and having at its axial ends two housings for driving pivots 2A and 2B pivoted steel.
  • the invention also relates to a pivoting mobile watch 10 having a shaft 1 according to the invention.
  • the invention also relates to a clockwork mechanism comprising such a shaft 1 and / or such a mobile 10, in particular an escape mechanism.
  • the invention also relates to a clockwork movement comprising such a shaft 1 and / or such a mobile 10 and / or such a mechanism 20.
  • the invention also relates to a timepiece 40, in particular a watch, comprising such a shaft 1 and / or such a mobile 10, and / or such a mechanism 20, and / or such a movement 30.

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

Claims (11)

  1. Welle (1) eines Uhrendrehteils (10), wobei die Welle (1) aus einem oder mehreren aufeinander ausgerichteten Teilen (2) hergestellt ist, dadurch gekennzeichnet, dass die Welle (1) magnetisch inhomogen ist mit einer Änderung der intrinsischen magnetischen Eigenschaften der Welle (1) in axialer und/oder radialer Richtung in Bezug auf die Drehachse (D), und dadurch gekennzeichnet, dass nur das Material, das sich im Kern der Welle (1) in einem zentralen Bereich (3) in der Umgebung der Drehachse (D) der aus Stahl hergestellten Welle (1) befindet, ein hohes Sättigungsfeld (Bs) mit einem Wert größer als 1 T, eine maximale magnetische Permeabilität (µR) größer als 50 und ein Koerzitivfeld (Hc) größer als 3 kA/m aufweist, während das Material in einem Umfangsbereich (4) der Welle (1) entweder schwach paramagnetisch oder ferromagnetisch ist mit einem geringen Sättigungsfeld (Bs) mit einem Wert kleiner als 0,5 T, einer geringen maximalen magnetischen Permeabilität (µR) kleiner als 10 und einem geringen Koerzitivfeld.
  2. Welle (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Welle (1) magnetisch inhomogen ist mit einer Änderung der intrinsischen magnetischen Eigenschaften der Welle (1) in radialer Richtung in Bezug auf die Drehachse (D).
  3. Welle (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Welle (1) magnetisch inhomogen ist mit einer Änderung der intrinsischen magnetischen Eigenschaften der Welle (1) in radialer Richtung mit einer Rotationssymmetrie in Bezug auf die Drehachse (D).
  4. Welle (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Welle (1) magnetisch inhomogen ist mit einer Änderung der intrinsischen magnetischen Eigenschaften der Welle (1) in axialer Richtung in Bezug auf die Drehachse (D).
  5. Welle (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der stark ferromagnetische Bereich des zentralen Bereichs (3) im Kern der Welle (1) in einem Zylinder mit einem Radius kleiner als 100 Mikrometer und zentriert auf die Drehachse (D) der Welle (1) enthalten ist.
  6. Welle (1) nach Anspruch 4, dadurch gekennzeichnet, dass sie in Richtung der Drehachse (D) einen Mittelteil (6) aufweist, der beiderseits von zwei Endbereichen (8) umgeben ist, und dass nur die Endbereiche (8), die aus Stahl hergestellt sind, ein hohes Sättigungsfeld (Bs) mit einem Wert größer als 1 T, eine maximale magnetische Permeabilität (µR) größer als 50 und ein Koerzitivfeld (Hc) größer als 3 kA/m aufweisen, während das Material in dem Mittelteil (6) der Welle (1) entweder schwach paramagnetisch oder ferromagnetisch mit einem geringen Sättigungsfeld (Bs) mit einem Wert kleiner als 0,5 T, einer geringen maximalen magnetischen Permeabilität (µR) kleiner als 10 und einem geringen Koerzitivfeld ist.
  7. Welle (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ihre magnetische Inhomogenität erzielt wird entweder durch Kombinieren zweier verschiedener Materialien durch Hartlöten, Schweißen oder Ablagern eines Materials auf dem anderen oder durch Verwenden einer Legierung, die einer Wärmebehandlung oder der Wirkung eines elektrischen oder magnetischen Feldes in einem Teil der Welle (1) oder der gesamten Welle oder einem Teil des Drehteils (10) oder des gesamten Drehteils (10) unterworfen wird.
  8. Uhrendrehteil (10), umfassend eine Welle (1) nach einem der Ansprüche 1 bis 7.
  9. Uhrenmechanismus (20), umfassend eine Welle (1) nach einem der Ansprüche 1 bis 7 und/oder ein Drehteil (10) nach Anspruch 8, dadurch gekennzeichnet, dass er ein Hemmungsmechanismus ist.
  10. Uhrwerk (30), umfassend eine Welle (1) nach einem der Ansprüche 1 bis 7 und/oder ein Drehteil (10) nach Anspruch 8 und/oder einen Mechanismus (20) nach Anspruch 9.
  11. Zeitmessgerät (40) oder Uhr, umfassend eine Welle (1) nach einem der Ansprüche 1 bis 7 und/oder ein Drehteil (10) nach Anspruch 8 und/oder einen Mechanismus (20) nach Anspruch 9 und/oder ein Werk (30) nach Anspruch 10.
EP13161124.6A 2013-03-26 2013-03-26 Welle eines drehbaren Elements für Uhrwerk Active EP2784601B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CH00664/13A CH707790B1 (fr) 2013-03-26 2013-03-26 Arbre de mobile pivotant d'horlogerie magnétiquement inhomogène.
EP13161124.6A EP2784601B1 (de) 2013-03-26 2013-03-26 Welle eines drehbaren Elements für Uhrwerk
PCT/EP2014/055267 WO2014154510A2 (fr) 2013-03-26 2014-03-17 Arbre de mobile pivotant d'horlogerie
US14/779,773 US9915923B2 (en) 2013-03-26 2014-03-17 Arbor of a pivoting movable timepiece component
EP14710311.3A EP2979139B1 (de) 2013-03-26 2014-03-17 Schwenkbarer zuganker einer uhr
JP2016504560A JP6315727B2 (ja) 2013-03-26 2014-03-17 枢動可能な時計構成部品のアーバ
CN201480018533.0A CN105103057B (zh) 2013-03-26 2014-03-17 枢转的可移动钟表构件的心轴
HK16105845.8A HK1217776A1 (zh) 2013-03-26 2016-05-23 樞轉的可移動鐘錶構件的心軸

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EP13161124.6A EP2784601B1 (de) 2013-03-26 2013-03-26 Welle eines drehbaren Elements für Uhrwerk

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EP3208664B1 (de) * 2016-02-19 2023-08-16 Omega SA Uhrwerk oder uhr ohne magnetische signatur
EP3273303A1 (de) * 2016-07-19 2018-01-24 Nivarox-FAR S.A. Bauteil für uhrwerk
JP6915602B2 (ja) * 2018-10-24 2021-08-04 セイコーエプソン株式会社 時計部品および時計
WO2023036928A1 (fr) 2021-09-09 2023-03-16 Rolex Sa Élément inertiel pour mouvement horloger

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CN105103057B (zh) 2018-04-13
CN105103057A (zh) 2015-11-25
WO2014154510A4 (fr) 2015-01-29
WO2014154510A2 (fr) 2014-10-02
JP6315727B2 (ja) 2018-04-25
JP2016514834A (ja) 2016-05-23
CH707790A2 (fr) 2014-09-30
EP2784601A1 (de) 2014-10-01
US9915923B2 (en) 2018-03-13
HK1217776A1 (zh) 2017-01-20
WO2014154510A9 (fr) 2015-03-05
US20160085213A1 (en) 2016-03-24
CH707790B1 (fr) 2017-12-15
WO2014154510A3 (fr) 2014-12-31
EP2979139A2 (de) 2016-02-03
EP2979139B1 (de) 2018-05-09

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