EP4428624B1 - Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder - Google Patents

Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder

Info

Publication number
EP4428624B1
EP4428624B1 EP23160132.9A EP23160132A EP4428624B1 EP 4428624 B1 EP4428624 B1 EP 4428624B1 EP 23160132 A EP23160132 A EP 23160132A EP 4428624 B1 EP4428624 B1 EP 4428624B1
Authority
EP
European Patent Office
Prior art keywords
active length
balance spring
lever
balance
cam
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
EP23160132.9A
Other languages
English (en)
French (fr)
Other versions
EP4428624A1 (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
Priority to EP23160132.9A priority Critical patent/EP4428624B1/de
Priority to US18/435,455 priority patent/US20240302797A1/en
Priority to JP2024018357A priority patent/JP7642887B2/ja
Priority to CN202410255046.1A priority patent/CN118625625A/zh
Publication of EP4428624A1 publication Critical patent/EP4428624A1/de
Application granted granted Critical
Publication of EP4428624B1 publication Critical patent/EP4428624B1/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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/028—Setting the regulator by means coupled to or depending on another device, e.g. by the time indication setting mechanism
    • 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
    • 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • 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
    • G04B18/04—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 concerns a device for adjusting the active length of a balance spring, for a balance-spring type oscillator, allowing the counterbalancing of the effects of gravity, in particular the perturbations of the isochronism of the oscillator's balance wheel,
  • 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 first 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 shaft 7 by its inner end (not visible).
  • the balance shaft 7 has one end pivotally mounted in a balance bridge (the latter not shown in the figures for clarity).
  • the outer end of the balance spring 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 shaft 7, as illustrated in the figure. figure 2 .
  • the shaft 7 of the balance wheel 4 is pivotally mounted in the 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 include a lever 60 capable of moving between a rest position and two correction positions of the device.
  • the lever has a first free end 610 and a second end 600 equipped with two prongs 601, 602, each prong 601, 602 being arranged to act independently of each other on the outer coil of the balance spring and modify the active length of the balance spring.
  • the eyelet holder 10 includes an extension 100 with an opening 101 through which passes a pivot axis 102 around which the lever 60 pivots to move from its rest position to a correction position.
  • the lever In order to pivot around the axis 102 which is formed by a bolt 103 and a nut 104, the lever includes, at its second end 600, a ball bearing 603 through which passes the rod of the bolt 103.
  • the opening 101 is oblong in shape in order to allow adjustment of the position of the lever 60 relative to the spiral 5.
  • the means 6 for modifying the active length of the balance spring also include a weight 40 that rotates about an axis 30 on which a cam 31 is mounted, against which the free end 610 of the lever 60 rests.
  • the weight 40 is arranged to rotate about the axis 30 according to the gravity acting upon it, the rotation of the weight 40 causing a rotation of the cam 31 and a displacement of the lever 60 to act on the outer coil of the balance spring 5 and simultaneously modify the active length of the balance spring.
  • the adjustment device 6 further includes damping means comprising a toothed wheel 34 coaxial with and integral to the weight 40, and a damping device 20 arranged to cooperate with the weight 40 via the toothed wheel 34 and limit the modification of the active length of spiral 5 in case of sudden acceleration or deceleration.
  • the adjustment device includes elastic constraint means configured to exert an elastic restoring action in position on at least one arm 60.
  • the elastic constraint means are in the form of a leaf spring 70, 73.
  • the spring blade 70 comprises a first end 71 in contact with the free end 610 of the lever 60 so as to hold the free end 610 against the profile of the cam 31, and a second end integral with the plate 13.
  • the spring blade 73 is integral with the stud holder 10 and also allows the free end 610 to be pressed against the profile of the cam 31.
  • 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 weight 40 is mounted to rotate freely on the axis 30 on which the cams 31 are mounted, such that a rotation of the weight 40 causes a displacement of the lever 60 and simultaneously acts on the means for modifying the active length of the balance spring 5.
  • the displacement of the lever under the effect of the rotation of the weight 40, itself subject to gravity, occurs between a rest position of the device and two correction positions of the device.
  • the prongs 601 and 602 of the lever 60 allow for a distinct correction depending on the position of the watch.
  • the weight 40 is, for example, made of a semi-solid disc. In an alternative embodiment not shown in the figures, the weight 40 is made of a solid, two-material disc, the two materials of the disc having distinct densities.
  • the weight 40 freely subjected to gravity, can rotate around its axis of rotation and thus cause a displacement of the lever 60. In doing so, the rotation of the weight 40 acts simultaneously on the means of modifying the active length of the balance spring 5, allowing continuous adjustment of the active length of the balance spring in order to compensate for the perturbations of the isochronism of the balance wheel due to gravity.
  • the adjustment device 6 includes damping means comprising a toothed wheel 34 coaxial with and integral to the weight.
  • the damping means include a damping device arranged to cooperate with the weight via the toothed wheel to limit, or even prevent, changes in the active length of the balance spring 5 during sudden acceleration or deceleration.
  • the damping device 20 is in the form of an air damper.
  • the damper comprises a body 22 with a cavity in which a mass 21, similar in shape to the cavity, rotates around an axis 24.
  • the axis 24 also includes a pinion 23 arranged to mesh with the teeth of the gear 34.
  • the weight 40 moves, it drives the gear 34, which engages the pinion 23, and rotates the mass 21 of the damping device 20. It is therefore understood that during a rapid movement of the weight 40, the mass 21 will dampen its rotation thanks to the damping device 20.
  • other types of dampers can be used, such as a mass moving within a cylinder, or even a magnetic damper.
  • the shaft 30, which carries the weight 40, the gear 34, and the cam 31, also includes a heart-shaped cam 32 fixed to the shaft 30 and superimposed on the cam 31.
  • the heart-shaped cam 32 is arranged to cooperate with a spring 24, 25, the end of which 26 cooperates with the heart-shaped cam profile 32, the whole forming a device for resetting the position of the lever 60 to return it to its rest position naturally when the weight is no longer subject to gravity.
  • cam 31 is a radial cam with an external profile.
  • a radial cam with a substantially rectangular external profile is shown on the figures 1 to 5b
  • 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 is in contact with the free end 610 of the lever 60, while in the correction position of the device 6, a corner or angle of the cam 31 is in contact with the free end 610 of the lever 60.
  • the cam 31 is in contact with the lever 60 regardless of the position of the weight 40.
  • the weight 40 freely subject to gravity, can rotate around its axis of rotation and thereby cause a displacement of the lever 60. In doing so, this rotation of the weight 40 simultaneously acts on the means for modifying the active length of the balance spring 5, allowing continuous adjustment of the spring's active length to compensate for perturbations in the balance wheel's isochronism due to gravity.
  • the rotation of the weight 40 causes a rotation of the axis 30 and has the effect of displacing the cam 31, which is fixed to the axis 30.
  • the cam then acts on the free end 610 of the lever 60, displacing the lever so that the other end 600 of the lever pivots around the axis 102 and one of the spurs 601 comes into contact with the balance spring 5, thereby modifying the spring's active length.
  • the device will automatically return to its resting position thanks to the action of the spring 24, 25 on the heart-shaped cam 32 which is also fixed to the axis 30.
  • 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)
  • Transmission Devices (AREA)
  • Springs (AREA)

Claims (15)

  1. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) für einen Oszillator (4, 5) vom Balancier-Spiral-Typ, mit einem Hahn (12), vorgesehen zum Aufbringen auf eine Platine (13) eines Uhrwerks (2), in dem eine Balancierwelle (7) des Balanciers (4) drehbar gelagert ist, wobei die Spirale (5) eine innere, mit der Welle (7) des Balanciers (4) feste Verbindung und eine äußere, so ausgelegte Verbindung aufweist, dass sie mit einem ersten Piton (8) verbunden ist, der an einem Pitonträger (10) befestigt ist, wobei der Pitonträger (10) drehbar am Hahn (12) montiert ist, konzentrisch zur Balancierwelle (7) des Balanciers (4), und Mittel zur Änderung der aktiven Länge der Spirale (5) umfasst;
    wobei die Mittel zur Änderung der aktiven Länge der Spirale Folgendes umfassen:
    - ein Hebel (60), der auf dem Pitonträger (10) zwischen einer Ruheposition und zwei Korrekturstellungen der Vorrichtung schwenkbar ist, wobei der Hebel (60) an seinem ersten freien Ende (600) und an seinem zweiten Ende (601) zwei Backen (601, 602) aufweist;
    - Mittel zur elastischen Vorspannung (70, 71, 72, 73), ausgebildet derart, dass sie auf den Hebel (60) eine elastische Rückstellwirkung in Position ausüben;
    - eine um eine Achse (30) drehbar gelagerte Masselotte (40), auf der eine Nocke (31) montiert ist; die Masselotte ist so angeordnet, dass sie sich entsprechend der Schwerkraft frei um die Welle drehen kann. Die Drehung der Masselotte (40) bewirkt eine Drehung der Nocke (31) und eine Schwenkung des Hebels (60), so dass einer der Backen (601, 602) auf die Spirale einwirkt und gleichzeitig die aktive Länge der Spirale (5) geändert wird;
    - Dämpfungseinrichtungen
    umfassend ein Zahnrad (34), koaxial zur Masselotte (40) und auf dieser montiert, sowie eine Dämpfvorrichtung (20), ausgelegt zur Zusammenarbeit mit der Masselotte über das Zahnrad und zur Begrenzung der Änderung der aktiven Länge der Spirale (5) im Falle plötzlicher Beschleunigung oder Verzögerung.
  2. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach Anspruch 1, dadurch gekennzeichnet, dass der Pitonträger (10) eine Verlängerung (100) aufweist, die mit einer Öffnung (101) versehen ist, durch die eine Drehachse (102) für den Hebel (60) geführt ist.
  3. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach Anspruch 2, dadurch gekennzeichnet, dass der Hebel an seinem zweiten Ende (600) ein Kugellager (603) aufweist, durch welches die Drehachse (102) verläuft.
  4. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach Anspruch 2, dadurch gekennzeichnet, dass die Öffnung (101) eine Langlochform aufweist, um die Position des Hebels (60) relativ zur Spirale (5) einstellen zu können.
  5. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die elastischen Rückstellmittel (70, 71, 72), die ausgelegt sind, um eine rückführende elastische Wirkung auf den Hebel auszuüben, fest mit der Platine (13) verbunden sind.
  6. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das elastische Rückstellmittel (73), das ausgelegt ist, um eine rückführende elastische Wirkung auf den Hebel auszuüben, fest mit dem Pitonträger (10) verbunden ist.
  7. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Nocke (31) eine radiale Nocke mit Außenkontur ist.
  8. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass sich in der Ruhestellung der Vorrichtung (6) eine flache Fläche der Nocke (31) in Kontakt mit dem Hebel (60) befindet, während sich in der Korrekturstellung der Vorrichtung (6) eine Ecke oder ein Winkel der Nocke (31) in Kontakt mit dem Hebel (60) befindet.
  9. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Nocke (31) unabhängig von der Position der Masselotte (40) ständig mit dem freien Ende (610) des Hebels (60) in Kontakt steht.
  10. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Masselotte (21) ein massiver Halbkreisdiskus ist.
  11. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung einen Luftdämpfer umfasst, wobei der Dämpfer als Gehäuse mit einer Kavität ausgebildet ist, deren Form der Masselotte ähnelt, wobei die Masselotte drehbar in der Kavität gelagert ist.
  12. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie eine herzförmige Nocke (32) umfasst, die auf der Achse (30) montiert ist, wobei die herzförmige Nocke zur Zusammenarbeit mit einer Feder (24, 25) ausgelegt ist, wobei die Einheit ein Rückstellmechanismus zur Nullstellung der Hebelposition (60) bildet.
  13. Vorrichtung (6) zur autonomen Einstellung der aktiven Länge einer Spirale (5) nach Anspruch 12, dadurch gekennzeichnet, dass die herzförmige Nocke (32) über der Nocke (31) angeordnet ist.
  14. Uhrwerk (2) mit einem Oszillator (4, 5) vom Typ Balancier-Spirale und einer Vorrichtung (6) zur autonomen Einstellung der aktiven Länge der Spirale (5), dadurch gekennzeichnet, dass die Vorrichtung (6) gemäß einem der vorhergehenden Ansprüche ausgeführt ist.
  15. Uhrenteil (1) mit einem Uhrwerk (2), dadurch gekennzeichnet, dass das Uhrwerk (2) gemäß Anspruch 14 ausgeführt ist.
EP23160132.9A 2023-03-06 2023-03-06 Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder Active EP4428624B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP23160132.9A EP4428624B1 (de) 2023-03-06 2023-03-06 Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder
US18/435,455 US20240302797A1 (en) 2023-03-06 2024-02-07 Device for autonomously adjusting the active length of a balance spring
JP2024018357A JP7642887B2 (ja) 2023-03-06 2024-02-09 バランスばねの有効長の自律的調整デバイス
CN202410255046.1A CN118625625A (zh) 2023-03-06 2024-03-06 用于自主调节摆轮游丝的有效长度的装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23160132.9A EP4428624B1 (de) 2023-03-06 2023-03-06 Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder

Publications (2)

Publication Number Publication Date
EP4428624A1 EP4428624A1 (de) 2024-09-11
EP4428624B1 true EP4428624B1 (de) 2025-12-17

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EP23160132.9A Active EP4428624B1 (de) 2023-03-06 2023-03-06 Vorrichtung zur autonomen einstellung der aktiven länge einer spiralfeder

Country Status (4)

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US (1) US20240302797A1 (de)
EP (1) EP4428624B1 (de)
JP (1) JP7642887B2 (de)
CN (1) CN118625625A (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.

Also Published As

Publication number Publication date
US20240302797A1 (en) 2024-09-12
EP4428624A1 (de) 2024-09-11
JP7642887B2 (ja) 2025-03-10
CN118625625A (zh) 2024-09-10
JP2024126009A (ja) 2024-09-19

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