EP4428628B1 - Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder - Google Patents

Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder

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Publication number
EP4428628B1
EP4428628B1 EP24154223.2A EP24154223A EP4428628B1 EP 4428628 B1 EP4428628 B1 EP 4428628B1 EP 24154223 A EP24154223 A EP 24154223A EP 4428628 B1 EP4428628 B1 EP 4428628B1
Authority
EP
European Patent Office
Prior art keywords
arm
balance spring
active length
balance
pins
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
EP24154223.2A
Other languages
English (en)
French (fr)
Other versions
EP4428628A1 (de
Inventor
Paulo Bravo
Andrés Cabezas Jurin
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Publication of EP4428628A1 publication Critical patent/EP4428628A1/de
Application granted granted Critical
Publication of EP4428628B1 publication Critical patent/EP4428628B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/023—Regulator or adjustment devices; Indexing devices, e.g. raquettes with means for fine adjustment of the indexing device
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/026—Locking the hair spring in the indexing device, e.g. goupille of the raquette
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring

Definitions

  • the invention relates to an autonomous adjustment device for the active length of a spiral, for a balance-spiral type oscillator.
  • the invention also relates to a watch movement comprising the autonomous adjustment device for the active length of a balance spring and a balance-spring type oscillator.
  • the invention further relates to a timepiece, in particular a watch, comprising the watch movement.
  • the outer end of the balance spring is held in place by a stud attached to a stud holder fixed to a balance cock.
  • a regulator which rotates relative to the stud holder, is used to adjust the active length of the balance spring, thus allowing adjustment of the balance wheel's frequency.
  • the regulator is a lever, usually with two arms, that pivots centered on the balance staff's coordinates.
  • One arm of the regulator for example, carries two pins between which the balance spring is free.
  • a second arm of the regulator can be manually operated to rotate the regulator through a certain angle around the balance staff. This allows the actual position of the counting point to be changed.
  • the active length of the balance spring is reduced or increased.
  • a drawback of such a manual adjustment device is that Earth's gravity influences the frequency of the balance wheel's oscillations.
  • the balance wheel and hairspring's position depends on the orientation of the corresponding watch movement.
  • a watch's rate can vary significantly between its horizontal and vertical positions, for example.
  • the hairspring moves between the balance spring pins due to play between them, the oscillations of the balance wheel and hairspring cause a disturbance in its active length, and therefore a slight variation in the frequency of the overall balance wheel and hairspring oscillations.
  • the document EP 3 502 788 A1 discloses a device for autonomously adjusting the active length of a spiral.
  • the invention therefore aims to provide a device for adjusting the active length of a spiral, for a balance-spring type oscillator, allowing to counterbalance in a simple, precise and autonomous way the effects of gravity, in particular the perturbations of the isochronism of the balance wheel of the oscillator, and overcoming the aforementioned disadvantages of the prior art.
  • the invention relates to an autonomous adjustment device for the active length of a balance spring, for a balance-spring type oscillator, comprising a cock mounted on a plate of a watch movement and in which a balance shaft pivots, the balance spring having an inner end fixed to the balance shaft and an outer end fixed to a stud attached to a stud holder, the stud holder being pivotally mounted on the cock concentrically to the balance shaft, and means for modifying the active length of the balance spring.
  • An advantage of the adjustment device according to the invention lies in the fact that it comprises a freely rotating weight that indirectly cooperates with a movable arm arranged to act on the outer coil of the balance spring. Rotation of the weight, freely subjected to gravity, thus causes a displacement of the arm between a rest position and a correction position of the device, and simultaneously acts on the balance spring to modify its active length, allowing it to be adjusted to compensate for perturbations in the balance wheel's isochronism due to gravity. Consequently, the adjustment device according to the invention makes it possible to precisely compensate for the oscillator's rate as a function of its position in space, counterbalancing perturbations in the balance wheel's isochronism due to gravity, and to do so autonomously.
  • the invention also relates to a watch movement comprising the setting device described above, and which includes the features mentioned in dependent claim 14.
  • the invention also relates to a timepiece comprising the clock movement described above, and which includes the features mentioned in dependent claim 15.
  • the following description refers to a watch movement equipped with a device for adjusting the active length of a balance spring, for a balance-spring type oscillator.
  • the usual components of a watch movement which are well known to a person skilled in this technical field, are described only in simplified form or not at all. A person skilled in the art will be able to adapt these various components and make them work together for the operation of the watch movement. In particular, everything concerning the escapement mechanism of the watch movement will not be described hereafter, although such an escapement mechanism could advantageously cooperate with the adjusting device according to the invention.
  • FIG 1 represents a part of a timepiece 1, which includes a watch movement 2.
  • the timepiece 1 is a watch.
  • the watch movement 2 comprises an oscillator equipped with a balance wheel 4 and a balance spring 5, and a device 6 for independently adjusting the active length of the balance spring 5.
  • the balance spring 5 is attached to a balance staff by its inner end (not visible).
  • the balance staff has one end pivot-mounted in a balance bridge (the latter not visible in the figures). (for clarity).
  • the outer end of the spiral 5 is conventionally attached to a stud 8 fixed to a stud holder 10, the stud holder 10 being secured to a balance cock 12 by slight clamping. More precisely, the stud holder 10 is pivotally mounted on the balance cock 12 concentrically with the balance staff 4, as illustrated in the figure 2
  • the balance shaft is pivotally mounted in the balance cock 12.
  • the means 6 for modifying the active length of the spiral 5 are suitable for modifying the active length of the spiral 5 by acting on the length of the outer coil of the spiral 5.
  • the means for modifying the active length of the balance spring 5 comprise a first arm 60 capable of moving between a rest position and a correction position of the device.
  • the first arm has a first free end 600 and a second end 601 cooperating with a first pair of pins 19 forming a guide fork for the first arm 60.
  • the first pair of pins 19 is mounted on the stud holder 10 and offset angularly relative to the stud 8 via a first support 8'.
  • the position of the first support 8' can be modified radially relative to the stud holder 10.
  • the second end 601 of the arm 60 can slide between the two pins 19 and comes into contact with the outer coil of the balance spring 5 in the correction position to modify the active length of the balance spring.
  • the adjustment device also includes a second arm 61 capable of moving between a rest position and a correction position of the device.
  • the second arm 61 has a first free end 610 and a second end cooperating with a second pair of pins 19' forming a guide fork for the second arm 61.
  • the second pair of pins 19' is mounted on the eyelet carrier 10 and offset angularly relative to the eyelet and the first pair of pins 19' via a second support 8".
  • the position of the second support 8" can be modified radially relative to the eyelet carrier 10.
  • the second The end 611 of the second arm 61 can slide between the two pins 19' and comes into contact with the outer coil of the balance spring in the correction position to modify the active length of the balance spring.
  • the means 6 for modifying the active length of the balance spring also include a spherical weight 40 that rotates about two perpendicular axes A and B.
  • the spherical weight 40 is arranged to rotate about at least one of the axes A and B as a function of gravity, the movement of the weight 40 causing a shaft 30 on which a cam 31 is mounted to rotate and/or a lever 49 to move.
  • the rotation of the cam 31 causes the arm 60 to move in order to act on the balance spring and simultaneously modify the active length of the balance spring 5, and the same is true for the lever 49, which is arranged to cooperate with the second arm 61 and move the latter to act on the balance spring and simultaneously modify the active length of the balance spring 5.
  • the weight 40 is in the form of a spherical body rotating about the axis A and comprising a solid portion 400 and a perforated portion 401 with perforated elements 43, each portion forming half of the spherical weight 40.
  • the solid portion 400 forms an unbalance and allows the weight 40 to return to its rest position.
  • the spherical weight comprises a first ring 41 on a great circle of the spherical weight, and a second ring 46 rotating about the axis B and encircling the spherical weight, the weight 40 being arranged to rotate in the second ring 46.
  • each ring rotates about an axis and defines a degree of rotation of the spherical weight 40.
  • the first ring 41 and the spherical weight 40 form a single unit, and the first ring includes at least one recess 42 arranged to cooperate with a feeler 48 integral with the lever 49, the lever moving when the feeler 49 passes through the recess 48.
  • the recess 42 corresponding to a correction position, and it can obviously have several hollows on the surface of the first ring 41 so as to define a plurality of correction positions.
  • the sphere 40 and the second ring 46 are fixed to the plate 13 via a semi-circular frame 47, each end of the frame 47 having an opening to allow respectively the passage of the lever 49 acting on the second arm 61 and of a drive shaft 45 driving a first pinion 21 engaging a second pinion 22 fixed to the shaft 30 on which is mounted the cam 31 which acts on the first arm 60.
  • the adjustment device includes elastic constraint means configured to exert an elastic return action on the arms 60, 61.
  • the elastic constraint means are in the form of a rod 62 integral with the arm 60 and a spring blade 63 integral with the eyelet holder 10, the spring blade 61 exerting a return force on the rod 62 and exerting an elastic return action on the arm 60.
  • Elastic constraint means are also associated with the second arm 61, and include a rod 64 integral with the second arm 61 and a spring blade 65 integral with the eyelet holder 10, the spring blade 65 exerting a return force on the rod 64 and exerting an elastic return action on the second arm 61.
  • the adjustment device 6 also includes means for adjusting the arms 60, 61, and the free ends 600, 610 of the first and second arms 60, 61, comprising elastically deformable adjustment means for lengthening or shortening the arms.
  • the adjustment means are in the form of a leaf spring, one end of which is fixed to the arm and the other end is free. The free end is arranged to be subjected to tension and to adjust the length of the arms 60, 61, the leaf spring forming a gap between itself and the free end of each arm. Such adjustment is necessary depending on the position of the spiral and the correction required for the spiral.
  • the means for modifying the active length of the spiral 5 include two pins 19 fixed to the second pin 8', the second end 601 of the arm 60 being arranged so that it slides between the two pins 19 and comes into contact with the outer coil of the spiral 5 in the correction position and thus modifies the active length of the spiral.
  • the means for modifying the active length of the spiral 5 include two further pins 19' fixed to the third pin 8", the second end 611 of the second arm 61 being arranged so that it passes between the two pins 19' and comes into contact with the outer coil of the spiral 5 in the correction position.
  • each arm 60, 61 includes means for adjusting the elastic stress.
  • These adjustment means take the form of a screw, the screw passing through the free end of the spring blade and bearing against the arm.
  • the weight 40 is free to move in rotation around the two axes A and B.
  • movement of the weight 40 causes a rotation of the first ring 41 and/or the second ring 46, and respectively a rotation of the drive shaft 45 which drives the first pinion 21 meshing with the second pinion 22 fixed to the shaft 30 on which the cam 31 is mounted, and/or a translation of the lever 49.
  • the cam is fixed to the shaft 30 and is in contact with the free end 600 of the first arm 60.
  • cam 31 is a radial cam with an external profile.
  • a radial cam with a substantially circular external profile is shown on the figures 1 to 3
  • the shape envisaged for the external profile of the cam will depend on the type of spiral 5 used and the correction to be applied.
  • a radial cam with a triangular, oblong, or even ovoid external profile can also be used within the framework of the present invention.
  • a flat portion of the cam 31 is in contact with the first arm 60, while in the correction position of the device 6, a corner or angle of the cam 31 is in contact with the arm 60.
  • the cam 31 is in contact with the first arm 60 regardless of the position of the weight 40.
  • the spherical weight 40 freely subjected to gravity, can pivot and cause a displacement of the arms 60, 61.
  • the displacement of the weight makes it possible to act simultaneously on the means of modifying the active length of the balance spring 5, allowing the active length of the balance spring to be continuously adjusted in order to compensate for the disturbances of the isochronism of the balance wheel due to gravity.
  • the device will return by itself to the rest position thanks to the action of the imbalance formed by the solid portion 400 of the weight 40.
  • the invention also relates to a watch movement 2 comprising a balance-spring type oscillator 4, 5 and an autonomous adjustment device 6 for the active length of the spring 5 as described above.
  • the invention also relates to a timepiece 1 comprising a watch movement 2 equipped with a device 6 for autonomously adjusting the active length of the balance spring 5 as described above.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Transmission Devices (AREA)
  • Electric Clocks (AREA)

Claims (15)

  1. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) für einen Oszillator (4, 5) vom Typ Unruh-Spirale, umfassend einen Unruhkloben (12), der zur Montage auf einer Platine (13) eines Uhrwerks (2) vorgesehen ist und in welchem eine Unruhwelle drehbar gelagert ist, wobei die Spirale (5) ein inneres Ende zur Befestigung an der Unruhwelle und ein äußeres Ende aufweist, das mit einem Spiralklötzchen (8) verbunden ist, welches an einem Klötzchenträger (10) befestigt ist, wobei der Klötzchenträger (10) konzentrisch zur Unruhwelle drehbar am Unruhkloben (12) gelagert ist, sowie Mittel zur Änderung der wirksamen Länge der Spirale (5);
    wobei die Mittel zur Änderung der wirksamen Länge der Spirale Folgendes umfassen:
    - einen ersten Arm (60), der zwischen einer Ruheposition und einer Korrekturposition der Vorrichtung bewegbar ist, wobei der erste Arm (60) ein erstes freies Ende (600) und ein zweites Ende (601) aufweist, das mit einem ersten Stiftpaar (19) zusammenwirkt, das am Klötzchenträger (10) befestigt ist, wobei das erste Stiftpaar (19) gegenüber dem Spiralklötzchen (8) winkelversetzt angeordnet ist;
    dadurch gekennzeichnet, dass sie Folgendes umfasst:
    - einen zweiten Arm (61), der zwischen einer Ruheposition und einer Korrekturposition der Vorrichtung bewegbar ist, wobei der zweite Arm ein erstes freies Ende (610) und ein zweites Ende (611) aufweist, das mit einem zweiten Stiftpaar (19') zusammenwirkt, das am Klötzchenträger (10) befestigt ist, wobei das zweite Stiftpaar (19') gegenüber dem ersten Stiftpaar winkelversetzt angeordnet ist;
    - elastische Rückstellmittel (62, 63, 64, 65), die dafür eingerichtet sind, in der Ruheposition auf die Arme (60, 61) eine rückstellende elastische Wirkung auszuüben;
    - einen kugelförmigen Massekörper (40), der um zwei zueinander senkrechte Achsen drehbar beweglich ist, wobei der Massekörper so angeordnet ist, dass er in Abhängigkeit von der Schwerkraft verlagert wird, wobei die Verlagerung des Massekörpers (40) eine Drehung einer Welle (30) bewirkt, auf der eine Nocke (31) angeordnet ist, wobei die Drehung der Nocke (31) eine Verschiebung des ersten Arms (60) sowie eine Translation eines Hebels (49) bewirkt, der zum Zusammenwirken mit dem zweiten Arm (61) eingerichtet ist, um auf die Spirale einzuwirken und gleichzeitig die wirksame Länge der Spirale (5) zu verändern.
  2. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach Anspruch 1, dadurch gekennzeichnet, dass der kugelförmige Massekörper (40) einen massiven Teil (400) und einen ausgehöhlten Teil (401) aufweist, wobei der massive Teil (400) eine Unwucht bildet, die die Kugel in ihre Ruheposition zurückkehren lässt.
  3. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach Anspruch 2, dadurch gekennzeichnet, dass der kugelförmige Massekörper einen ersten Ring (41) auf einem Großkreis des kugelförmigen Massekörpers und einen zweiten Ring (46) umfasst, der den kugelförmigen Massekörper umschließt, wobei jeder Ring einen Rotationsfreiheitsgrad des kugelförmigen Massekörpers (40) definiert.
  4. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach Anspruch 3, dadurch gekennzeichnet, dass der erste Ring (41) und der kugelförmige Massekörper (40) ein einstückiges Element bilden.
  5. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der erste Ring mindestens eine Ausnehmung (42) umfasst, die zum Zusammenwirken mit einem Fühler (48) eingerichtet ist, der fest mit dem Hebel (49) verbunden ist, wobei sich der Hebel beim Durchgang des Fühlers (49) in die Ausnehmung (48) bewegt, wobei die mindestens eine Ausnehmung (42) einer Korrekturstellung entspricht.
  6. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Nocke (31) eine radiale Nocke mit Außenprofil ist.
  7. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in der Ruhestellung der Vorrichtung (6) ein ebener Abschnitt der Nocke (31) mit dem ersten Arm (60) in Kontakt steht und in der Korrekturstellung der Vorrichtung (6) eine Ecke oder eine Kante der Nocke (31) mit dem ersten Arm (60) in Kontakt steht.
  8. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Nocke (31) unabhängig von der Stellung des Massekörpers (40) in ständigem Kontakt mit dem freien Ende (60) des ersten Arms (60) steht.
  9. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das freie Ende (600) des ersten Arms (60) elastisch verformbare Einstellmittel umfasst, wobei die Einstellmittel in Form einer Blattfeder ausgebildet sind, deren erstes Ende mit dem Arm fest verbunden ist und deren anderes Ende frei ist, wobei das freie Ende so eingerichtet ist, dass es vorgespannt werden kann, um die Länge des ersten Arms (60) einzustellen.
  10. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das freie Ende (610) des zweiten Arms (61) elastisch verformbare Einstellmittel umfasst, wobei die Einstellmittel in Form einer Blattfeder ausgebildet sind, deren erstes Ende mit dem Arm fest verbunden ist und deren anderes Ende frei ist, wobei das freie Ende so eingerichtet ist, dass es vorgespannt werden kann, um die Länge des zweiten Arms (61) einzustellen.
  11. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass sie Mittel zur Einstellung der elastischen Vorspannung umfasst, wobei die Einstellmittel als Schraube ausgebildet sind, die das freie Ende durchsetzt und sich gegen den Arm abstützt.
  12. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das erste Stiftpaar (19) mittels eines ersten Trägers (8') am Klötzchenträger (8) befestigt ist, wobei der erste Arm (60) derart eingerichtet ist, dass er zwischen den beiden Stiften (19) gleitend geführt ist und in der Korrekturstellung mit der äußeren Windung der Spirale in Kontakt kommt.
  13. Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zweite Stiftpaar (19') mittels eines zweiten Trägers (8") am Klötzchenträger (10) befestigt ist, wobei der zweite Arm (61) derart eingerichtet ist, dass er zwischen den beiden Stiften (19) hindurchgeführt ist und in der Korrekturstellung mit der äußeren Windung der Spirale in Kontakt kommt.
  14. Uhrwerk (2) mit einem Oszillator (4, 5) vom Typ Unruh-Spirale sowie einer Vorrichtung (6) zur autonomen Einstellung der wirksamen Länge der Spirale (5), dadurch gekennzeichnet, dass die autonome Einstellvorrichtung (6) einem der Ansprüche 1 bis 13 entspricht.
  15. Uhr (1) mit einem Uhrwerk (2), dadurch gekennzeichnet, dass das Uhrwerk (2) dem Anspruch 14 entspricht.
EP24154223.2A 2023-03-06 2024-01-26 Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder Active EP4428628B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23160133 2023-03-06

Publications (2)

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EP4428628A1 EP4428628A1 (de) 2024-09-11
EP4428628B1 true EP4428628B1 (de) 2025-12-03

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US (1) US20240302795A1 (de)
EP (1) EP4428628B1 (de)
JP (1) JP7642886B2 (de)
CN (1) CN118625624A (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705605B1 (fr) 2011-10-14 2016-10-14 Frederique Constant S A Dispositif de réglage de la longueur active d'un spiral.
CH714480A2 (fr) * 2017-12-20 2019-06-28 Swatch Group Res & Dev Ltd Dispositif de réglage autonome de la longueur active d'un spiral.

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Publication number Publication date
JP7642886B2 (ja) 2025-03-10
CN118625624A (zh) 2024-09-10
JP2024126008A (ja) 2024-09-19
EP4428628A1 (de) 2024-09-11
US20240302795A1 (en) 2024-09-12

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