EP3227754B1 - Spiralunruh-einheit für uhrwerk - Google Patents

Spiralunruh-einheit für uhrwerk Download PDF

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Publication number
EP3227754B1
EP3227754B1 EP15760108.9A EP15760108A EP3227754B1 EP 3227754 B1 EP3227754 B1 EP 3227754B1 EP 15760108 A EP15760108 A EP 15760108A EP 3227754 B1 EP3227754 B1 EP 3227754B1
Authority
EP
European Patent Office
Prior art keywords
balance
balance wheel
rod
arm
flyweight
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
EP15760108.9A
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English (en)
French (fr)
Other versions
EP3227754A1 (de
Inventor
Emmanuel Graf
Marc Stranczl
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.)
Nivarox Far SA
Original Assignee
Nivarox Far SA
Nivarox 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 Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Publication of EP3227754A1 publication Critical patent/EP3227754A1/de
Application granted granted Critical
Publication of EP3227754B1 publication Critical patent/EP3227754B1/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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/006—Mechanisms for setting frequency by adjusting the devices fixed on the 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
    • G04B18/00—Mechanisms for setting frequency
    • 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 a sprung-balance assembly whose balance has means for adjusting the inertia.
  • the invention also relates to a watch movement comprising such a system and a timepiece equipped with such a movement.
  • the invention particularly aims to overcome the various disadvantages of these known techniques.
  • an object of the invention is to provide a pendulum for obtaining a compact watch movement.
  • Another object of the invention is to provide a balance spring system allowing easy access to the flyweights for adjusting the inertia after the casing.
  • the invention also aims, at least in a particular embodiment, to provide a balance spring system that is simple to implement and inexpensive.
  • a balance-balance system comprising at least one balance oscillating about a pivot axis via a control shaft.
  • balance wheel mounted between a plate and a bridge (9) and aligned on said pivot axis, and at least one spiral of which an inner turn is fixed to said balance shaft or to a ferrule mounted integral with said balance shaft and an outer turn of which is fixed to a pin integral with the bridge carrying said shaft, said rocker having a balance hub, a serge, at least one arm connecting said hub to said serge, a front face having a recess and a rear face, said at least one arm comprising a housing for receiving and maintaining a feeder, and said hairspring being mounted facing the front face of the balance.
  • said flyweight is mounted on the side of the rear face of the balance, on said at least one arm of said balance, and in that the distance between the bottom of the core of the front face of the balance and the balance is within a predetermined range of 0.05mm to 1.50mm
  • the invention also relates to a watch movement comprising a balance-balance oscillator system according to the invention.
  • the invention also relates to a timepiece comprising a watch movement according to the invention.
  • the object of the present invention by its different functional and structural aspects described above, makes it possible to obtain a clockwork movement comprising a balance-spring system whose access to the means for adjusting the inertia is particularly easy. .
  • the invention thus relates to a sprung balance-balance system, intended to be incorporated in an oscillating mechanism within a watch movement, and comprising at least one rocker 1 oscillating about a pivot axis P via a balance shaft 40 aligned on the axis P and at least one hairspring 2.
  • the rocker shaft 40 is mounted between a plate 13 and a bridge 9, the rocker shaft 40 having at each of its ends a tapered pivot 41 to allow the rocker shaft 40 to pivot about the axis pivoting P by limiting the friction.
  • An inner turn (not visible in the figures) of the hairspring 2 is fixed to the balance shaft 40 or to a shell 7 which can be integral with the hairspring 2 mounted integral with the balance shaft 40 and an outer turn 21 of the hairspring 2 is fixed to a stud 8 secured to a bridge 9.
  • the balance 1 comprises a hub 3 carrying the balance shaft 40, a serge 4, at least one arm 5 connecting the hub 3 to the serge 4, a front face 10 having a core 11 and a flat rear face 12 which can also be embedded.
  • the arm 5 comprises a housing 6 for receiving and holding at least one feeder 30, and the hairspring 2 is mounted opposite the front face 10 of the rocker 1 receiving the casing 11.
  • the rocker 1 comprises rigid parts constituted by the hub 3, the serge 4, and the arm 5 connecting the serge 4 to the hub 2.
  • the housing 6 is delimited, on the one hand by a rigid portion of the balance 1, and on the other hand a portion 61 elastically deformable.
  • the arm 5 comprises a housing 6 for receiving and pinching in the position of a rod 32 of a flyweight 30.
  • This weight 30 comprises a head 31 having handling means such as a control profile 33 arranged to cooperate with a tool, such as a screwdriver.
  • a tool such as a screwdriver.
  • the rod 32 of the weight 30 extends the head 31, which is of greater diameter than that of the rod 32.
  • the diameter of the rod 32 of the weight 30 is chosen greater than the width of the housing 6 so that the rod 32 is retained by the portion 61 elastically deformable, the portion 61 exerting a restoring force.
  • the length of the rod 32 does not exceed the thickness of the arm 5, so that the rod 32 is not protruding and thus optimize the arrangement of parts within the movement to gain compactness.
  • This simple configuration of a feeder 30 consisting solely of the head 31 and the rod 32 is favorable for mounting the feeder on the balance 1 from the bottom of the latter.
  • the weight 30, once pinched in the housing 6, is angularly adjustable by means of a tool without being disturbed by the spiral 2 or by the limited space available.
  • the weight 30 comprises an unbalance made by means of a flat portion 34 made on the head 31, as visible on the figure 1a , to allow the inertia adjustment of the balance 1.
  • the weight 30 is mounted on the side of the rear face 12 of the balance 1, the head 31 resting against the rear face 12 of the balance 1 under the arm 5, the distance between the bottom of the face of the yoke before 10 of the balance 1 and the balance spring 2 is in a range V predetermined between 0.05mm and 1.50mm. More preferably, the predetermined interval V is between 0.10mm and 0.70mm. Such an arrangement provides a compact arrangement and thus reduce the size of the watch movement.
  • the rod 32 is flush with the bottom of the core 11 of the front face 10 of the rocker 1 so that the core 11 does not have a projecting element, the stud 8 can then be arranged at most near the serge 4, the piton 8 can even be closer to the bottom of the hole 11.
  • the arm 5, the serge 4 and the hub 3 form a single piece element, the rocker 1 can be made of a metal material.
  • the invention also relates to a watch movement and a timepiece equipped with a balance spring system according to the invention.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Electromechanical Clocks (AREA)
  • Gears, Cams (AREA)

Claims (7)

  1. Unruh-Spiralfeder-System (100), umfassend mindestens eine Unruh (1), die um eine Drehachse (P) über eine Unruhwelle (40) schwingt, die zwischen einer Platte (13) und einer Brücke (9) montiert ist und in Bezug auf die Drehachse (P) ausgerichtet ist, und mindestens eine Spiralfeder (2), von der eine innere Windung an der Unruhwelle (40) oder an einer Spiralrolle (7) befestigt ist, die an der Unruhwelle (40) fest montiert ist, und von der eine äußere Windung an einem Spiralklötzchen (8) befestigt ist, das mit der Brücke (9) fest verbunden ist, die die Unruhwelle (40) trägt, wobei die Unruh (1) eine Nabe (3) der Unruh (1), einen Unruhreif (4), mindestens einen Arm (5), der die Nabe (3) mit dem Unruhreif (4) verbindet, eine Vorderseite (10) mit einer Aussparung (11) und eine Rückseite (12) umfasst, wobei der mindestens eine Arm (5) eine Aufnahme (6) zum Aufnehmen und Halten mindestens eines Fliehgewichts (30) aufweist, das einen Kopf (31) und einen Stift (32) umfasst, und wobei die Spiralfeder (2) gegenüber der Vorderseite (10) der Unruh montiert ist,
    dadurch gekennzeichnet, dass das mindestens eine Fliehgewicht (30) an der Rückseite (12) der Unruh (1) an dem mindestens einen Arm (5) der Unruh (1) montiert ist, wobei der Kopf gegen die Rückseite der Unruh anliegt und der Stift mit dem Boden der Aussparung (11) der Vorderseite (10) der Unruh (1) bündig ist, derart, dass die Aussparung der vorderen Fläche der Unruh kein vorstehendes Element aufweist, wobei der Stift in der Aufnahme (6) ruht, und dadurch gekennzeichnet, dass der Abstand zwischen dem Boden der Aussparung der Vorderseite (10) der Unruh (1) und der Spiralfeder (2) in einem vorgegebenen Intervall (V) im Bereich von 0,05 mm bis 1,50 mm liegt.
  2. System (100) nach Anspruch 1, wobei der Wert des vorgegebenen Intervalls im Bereich von 0,10 mm bis 0,70 mm liegt.
  3. System (100) nach Anspruch 1 oder 2, wobei der Kopf (31) des mindestens einen Fliehgewichts (30) Betätigungsmittel umfasst, derart, dass das mindestens eine Fliehgewicht (30) ausgehend von der Rückseite (12) der Unruh (1) eingestellt wird.
  4. System (100) nach einem der Ansprüche 1 bis 3, wobei der Durchmesser des Stifts (32) des mindestens einen Fliehgewichts (30) mindestens gleich der Breite der Aufnahme (6) ist.
  5. System (100) nach einem der Ansprüche 1 bis 4, wobei der mindestens eine Arm (5), der Unruhreif (4) und die Nabe (3) ein einteiliges Element bilden.
  6. Uhrwerk, umfassend ein Unruh-Spiralfeder-System (100) nach einem der Ansprüche 1 bis 5.
  7. Uhr, umfassend ein Werk nach Anspruch 6.
EP15760108.9A 2014-08-29 2015-08-19 Spiralunruh-einheit für uhrwerk Active EP3227754B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14182777.4A EP2990883A1 (de) 2014-08-29 2014-08-29 Spiralunruh-Einheit für Uhrwerk
PCT/EP2015/069085 WO2016030257A1 (fr) 2014-08-29 2015-08-19 Ensemble balancier-spiral d'horlogerie

Publications (2)

Publication Number Publication Date
EP3227754A1 EP3227754A1 (de) 2017-10-11
EP3227754B1 true EP3227754B1 (de) 2019-12-04

Family

ID=51421941

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14182777.4A Withdrawn EP2990883A1 (de) 2014-08-29 2014-08-29 Spiralunruh-Einheit für Uhrwerk
EP15760108.9A Active EP3227754B1 (de) 2014-08-29 2015-08-19 Spiralunruh-einheit für uhrwerk

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14182777.4A Withdrawn EP2990883A1 (de) 2014-08-29 2014-08-29 Spiralunruh-Einheit für Uhrwerk

Country Status (7)

Country Link
US (1) US10061269B2 (de)
EP (2) EP2990883A1 (de)
JP (1) JP6293973B2 (de)
CN (1) CN106796412B (de)
RU (1) RU2688418C2 (de)
TW (1) TWI681268B (de)
WO (1) WO2016030257A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3671368B1 (de) * 2018-12-20 2022-11-23 The Swatch Group Research and Development Ltd Lager, insbesondere zur stossdämpfung, und drehteil eines uhrwerks
USD922893S1 (en) * 2019-05-07 2021-06-22 Nivarox-Far Sa Watch component
EP3736640B1 (de) * 2019-05-07 2022-12-21 Nivarox-FAR S.A. Unruh für uhrwerk
EP3839655A1 (de) * 2019-12-18 2021-06-23 Nivarox-FAR S.A. Unruh für uhrwerk
EP3839656B1 (de) * 2019-12-18 2023-12-13 Nivarox-FAR S.A. Unruh für uhrwerk
EP4194964A1 (de) * 2021-12-10 2023-06-14 Nivarox-FAR S.A. Unruh mit trägheitsregulierung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880570A (en) * 1956-11-26 1959-04-07 Elgin Nat Watch Co Balance with adjustable moment of inertia
JP2004301641A (ja) * 2003-03-31 2004-10-28 Seiko Instruments Inc てん輪、これを備えたてんぷ及びこれを備えた時計
EP2104005A1 (de) * 2008-03-20 2009-09-23 Nivarox-FAR S.A. Composite-Unruh und Herstellungsverfahren dafür
CH702156B1 (fr) * 2009-11-13 2017-08-31 Nivarox Far Sa Résonateur balancier-spiral pour une pièce d'horlogerie.
EP2410387B1 (de) * 2010-07-19 2016-07-06 Nivarox-FAR S.A. Unruh mit Trägheitsregulierung ohne Einsatzteil
EP2410386B1 (de) * 2010-07-19 2018-10-03 Nivarox-FAR S.A. Unruh mit Trägheitsregulierung mit Einsatzteil
DE202011110747U1 (de) * 2010-08-06 2016-01-14 Damasko Gmbh Schwingkörper, mechanisches Schwingsystem für Armbanduhren mit einem solchen Schwingkörper sowie Uhr mit einem derartigen Schwingsystem
CH705238C1 (fr) 2011-07-15 2024-02-15 Nivarox Far Sa Balancier à réglage d'inertie pour mouvement d'horlogerie.
JP2013108891A (ja) * 2011-11-22 2013-06-06 Seiko Instruments Inc てんぷ構造体及び機械式時計
JP6007082B2 (ja) * 2012-03-14 2016-10-12 セイコーインスツル株式会社 時計用錘、時計用錘を備える時計用ムーブメント及び時計
EP2725433B1 (de) * 2012-10-26 2015-04-29 Richemont International S.A. Bewegliches Tourbillon mit beweglicher Unruh für Uhrwerk
EP2990882B1 (de) * 2014-08-26 2020-01-15 Nivarox-FAR S.A. Unruh mit Trägheitsregulierung
CH711336A2 (fr) * 2015-07-16 2017-01-31 Swatch Group Res & Dev Ltd Microsystème de réglage de marche d'un oscillateur d'horlogerie.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US10061269B2 (en) 2018-08-28
EP2990883A1 (de) 2016-03-02
JP2017525967A (ja) 2017-09-07
CN106796412B (zh) 2019-10-01
EP3227754A1 (de) 2017-10-11
TWI681268B (zh) 2020-01-01
TW201614400A (en) 2016-04-16
WO2016030257A1 (fr) 2016-03-03
JP6293973B2 (ja) 2018-03-14
RU2017110089A (ru) 2018-10-01
RU2017110089A3 (de) 2019-03-05
US20170269552A1 (en) 2017-09-21
RU2688418C2 (ru) 2019-05-21
CN106796412A (zh) 2017-05-31

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