EP2728423A1 - Spiralunruh-Einheit für Uhrwerk - Google Patents

Spiralunruh-Einheit für Uhrwerk Download PDF

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Publication number
EP2728423A1
EP2728423A1 EP12191481.6A EP12191481A EP2728423A1 EP 2728423 A1 EP2728423 A1 EP 2728423A1 EP 12191481 A EP12191481 A EP 12191481A EP 2728423 A1 EP2728423 A1 EP 2728423A1
Authority
EP
European Patent Office
Prior art keywords
balance
assembly
spiral
hairspring
rocker
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.)
Withdrawn
Application number
EP12191481.6A
Other languages
English (en)
French (fr)
Inventor
Thierry Conus
Marco Verardo
Christian Charbon
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
Nivarox 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
Priority to EP12191481.6A priority Critical patent/EP2728423A1/de
Priority to JP2015540094A priority patent/JP5925392B2/ja
Priority to CN201380057773.7A priority patent/CN104769512B/zh
Priority to EP13782685.5A priority patent/EP2917792B1/de
Priority to PCT/EP2013/072011 priority patent/WO2014072168A1/fr
Priority to US14/441,062 priority patent/US10114341B2/en
Priority to TW102140097A priority patent/TWI610152B/zh
Publication of EP2728423A1 publication Critical patent/EP2728423A1/de
Priority to HK15112793.7A priority patent/HK1212051A1/xx
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
    • G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
    • G04D7/085—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing by removing material from the balance wheel itself
    • G04D7/087—Automatic devices therefor (balancing and loading or removing carried out automatically)
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49579—Watch or clock making
    • Y10T29/49581—Watch or clock making having arbor, pinion, or balance

Definitions

  • the invention relates to a pendulum balance-sprung assembly, comprising at least one pivoting pivoting arm about a pivot axis and at least one spiral of which an inner turn is fixed to said pendulum or to a ferrule mounted integral with said balance and one of which outer spire is attached to a peg for its maintenance to a platinum or a rooster.
  • the invention also relates to a clock oscillator mechanism comprising at least one such balance-spiral assembly mounted on a platen carrying a pin via a cock.
  • the invention also relates to a watch movement comprising such an oscillator mechanism.
  • the invention also relates to a timepiece comprising at least one such movement.
  • the invention also relates to a method of setting inertia or balancing of a sprung balance assembly comprising at least one swinging pivot about a pivot axis and at least one hairspring, by resuming machining on a part of said balance.
  • the invention relates to the field of clock oscillator mechanisms spiral balance.
  • the invention proposes to ensure the safety of the hairspring of a balance-hairspring assembly, when placing inertia or balancing of the balance when said hairspring and this balance are already assembled to one another, and in particular when the sprung balance assembly is already mounted in the watch movement.
  • the invention relates to a pendulum balance-sprung assembly, comprising at least one pivoting pivoting arm about a pivot axis and at least one spiral of which an inner turn is fixed to said balance or to a ferrule mounted integral with said a pendulum and an outer turn of which is fixed to a peg for its support to a plate or a rooster, characterized in that said balance has a peripheral surface, which is spaced from any point of said hairspring by a value greater than a first predefined distance , to prevent any modification of the characteristics of said hairspring during a resumption of machining of said balance on said peripheral surface for the inertia setting and / or the balancing of said balance on said assembly assembly.
  • the invention also relates to a clock oscillator mechanism comprising at least one such balance-hairspring assembly mounted on a plate carrying a pin via a cock, characterized in that said hairspring is foolproof, in that said stud is foolproof, and in that said cock is of unobstructed shape and comprises at least one clearance to facilitate a suction flow created in said mechanism during a resumption of machining said beam on said peripheral surface for the implementation of inertia and / or balancing said balance on said assembled assembly.
  • the invention also relates to a watch movement comprising such an oscillator mechanism, characterized in that said spiral is foolproof, and in that said piton is foolproof.
  • the invention also relates to a timepiece comprising at least one such movement, characterized in that said piece is a watch.
  • the invention thus relates to a balance sprung balance-watch unit, intended to be incorporated in an oscillator mechanism 10 within a watch movement 100, and comprising at least one rocker 2 pivoting about a pivot axis D and at least one hairspring 3.
  • An inner turn 4 of this hairspring 3 is fixed to the rocker 2 or to a shell 5 mounted integral with the rocker 2, and an outer coil 6 of this hairspring 3 is fixed to a pin 7 for its maintenance. to a plate 8 or a cock 80.
  • the invention is described here in the particular case of a single balance spring and single spiral regulator member, the skilled person will extrapolate the invention to the case of several rockers and / or several spiral.
  • the rocker 2 comprises a peripheral surface 20, which is spaced from any point of the spiral 3 by a value greater than a first predefined distance E1, to prevent any modification of the characteristics of the spiral 3 during a resumption of machining of the balance wheel 2 on the peripheral surface 20 for the implementation of inertia and / or balancing the balance 2 on the assembly 1 assembled.
  • machining By resuming machining is understood here any operation likely to locally modify the inertia of the pendulum: addition of material, displacement of material, removal of material.
  • This operation can be done, without limitation, by taking up the cutting or abrading tool (milling, turning, grinding or similar), by laser, in particular a picolaser or even a femtolaser, by spraying material by jetting, by deformation under the action of a tool, by localized fusion, by heat treatment modifying the structure of the material, or other.
  • first difference E1 can be understood, in the most general case, in any position of the hairspring 3, it is also possible to set particular deviation values specific to each of certain specific positions of the hairspring: at rest, in positive amplitude maximum oscillation amplitude, maximum negative oscillation amplitude, or other.
  • peripheral surface 20 is distant from the radially most eccentric point of the active part of the outer turn 6 of the spiral 3 by a value greater than this first gap E1.
  • the first predefined distance E1 is greater than 0.50 mm.
  • the first predefined distance E1 is between 0.50 mm and 1.20 mm.
  • the first predefined distance E1 is between 0.50 mm and 0.70 mm.
  • the hairspring 3 is bent into a bend 31 and / or twisted into a twisting zone 32, at or near its attachment to the peg 7 so as to move the active part 61 of the outer turn 6 away from the peripheral surface 20 3.
  • This active portion 61 of the hairspring 3 is thus remote from the peripheral surface 20 of machining resumption of the balance 2, and preferably from a distance greater than 2/3 of the radial extent of the peripheral surface 20 which is annular in projection in a plane perpendicular to the pivot axis D.
  • the peripheral surface 20 is distant from the piton 7 by a value greater than a second predetermined distance E2, to prevent any modification of the characteristics of the hairspring 3 during a resumption of machining the balance 2 on the peripheral zone 20 for placing the inertia and / or balancing of the balance 2 on the assembly 1 assembled. And in particular to prevent any modification of the characteristics by indirect heating of the hairspring.
  • the second predefined difference E2 is greater than 0.05 mm.
  • This second predetermined difference E2 is preferably between 0.05 mm and 0.20 mm. In a particular application, the second predefined difference E2 is between 0.05 mm and 0.10 mm.
  • the second difference E2 can be understood, in the most general case, in any position of the hairspring 3, it is also possible to set particular deviation values specific to each of certain specific positions of the hairspring: at rest, in positive amplitude maximum oscillation amplitude, maximum negative oscillation amplitude, or other.
  • the peripheral surface 20 is accessible from at least one side of the balance 2 to an ablation means and / or reloading and / or deformation and / or projection and / or heat treatment in a volume outside a first surface 21.
  • This first surface 21 is of revolution about the pivot axis D, and s' presses on the minimum radius 201 of the peripheral surface 20.
  • the first surface 21 is, again, at a distance greater than a third distance E3 from any active point of the spiral 3 to prevent any modification of the characteristics of the spiral 3 during a recovery machining of the balance 2 on the peripheral surface 20 for the inertia setting or / and balancing of the balance 2.
  • the first surface 21 is a cone whose vertex S1 is on the same side as the spiral 3 relative to the balance 2.
  • the figures illustrate a simplified case of recovery of inertia of the balance 2 on one side, said upper 2A.
  • the first surface 21 is composed of two half-surfaces, one on each side of the strut of the balance 2, for example with two portions of cones of opposite openings.
  • the access volume to the means for modifying the inertia of the balance 2 to the peripheral surface 20 is limited, not only on the side of the hairspring 3 by the first surface 21, but also, on the external, by a second surface 22.
  • the peripheral surface 20 is accessible from at least one side of the beam 2, a means of ablation and / or reloading in a volume defined by two surfaces coaxial with the axis Pivot D, a first surface 21 based on the minimum radius 201 of the peripheral surface 20 and at a distance greater than a third distance E3 of any active point of the hairspring 3 to prevent any change in the characteristics of the hairspring 3 when a resumption of machining of the balance 2 on the peripheral surface 20 for the inertia setting and / or balancing of the balance 2, and a second surface 22 resting on another radius 202 of the peripheral surface 20 and greater than Ray 201 and defining a protective envelope of the clock mechanism surrounding the sprung balance assembly 1 during a resumption of machining of the balance 2 on the peripheral surface 20 for the inertia setting or / and balancing of the balance 2 on the assembly 1 assembled.
  • this second surface 22 is intended to ensure the protection of the spiral 3 against a direct projection, or indirectly by reflection or ricochet, of a chip or other waste, on a surface of the balance, or a bridge , or a rooster.
  • the second surface 22 is a cone whose vertex S2 is on the opposite side to the spiral 3 with respect to the rocker 2.
  • the first surface 21 and the second surface 22 together define, in a section passing through the pivot axis D, an angle ⁇ less than a predetermined value a0 itself less than 45 °.
  • the tangent to the first surface 21 at the peripheral surface 20, in the plane of the pivot axis D, makes, with the pivot axis D, in a section passing through the pivot axis D, an angle ⁇ less than a predetermined value ⁇ 0, which is linked to the predefined value E3.
  • the tangent to the second surface 22 makes, with the pivot axis D, in a section passing through the pivot axis D, an angle e less than a predetermined value e0.
  • this angle e0 is 45 °.
  • the value of the third difference E3 is advantageously between 100% and 120% of the value of the first difference E1, and preferably the value of the third difference E3 is equal to the value of the first difference E1.
  • the sprung balance assembly 1 is designed to be set at the factory for its theoretical walk, and has no moving element whose improper handling can create a significant time error.
  • the hairspring 3 is foolproof, that is to say that this balance-hairspring assembly 1 does not include a raquet, nor element for acting on the hairspring 3 or on its peg 7 which is also foolproof .
  • the rocker 2 comprises inertia adjustment means whose adjustment range is very small, with very little regulating power, for example a few seconds or a few tens of seconds per day.
  • These means are for example constituted by visselottes, which are held stationary in a so-called recovery position, which is either a fixed position determined for example by a notch, or which is a bearing position on an abutment surface.
  • These monkfish screws are held in this recovery position for the duration of the recovery of machining inertia setting and / or balancing. Their reduced adjustment range is only used after-sales.
  • the balance 2 thus comprises, as the only adjusting means, adjustment screws 9 movable only between a first stop position 91 on the balance 1 on which their head 93 is supported in factory setting, and a second position of stop 92 limiting their power regulation limited to 30 seconds per day for the needs of after-sales.
  • adjustment screws 9 constitute the only adjustable elements in service of this balance spring-balance 1.
  • the rocker 2 is machined for its inertia setting and / or its equilibration in the form of narrow grooves P with a depth greater than at least once their width L, and preferably greater than at least three times their width.
  • width L the spiral 3 may be made of silicon or silicon oxide or monocrystalline diamond or polycrystalline diamond or glass or metal glass or amorphous metal or quartz or a paramagnetic material or a ferromagnetic ferromagnetic material or antiferromagnetic alloy.
  • the spiral 3 is thermally pretreated so as to withstand localized heating in a neighboring zone during a resumption of operation. machining of the balance 2 on the peripheral surface 20 for the implementation of inertia and / or balancing of the balance 2.
  • the invention also relates to a clock oscillator mechanism 10 comprising at least one balance-spiral assembly 1 with spiral 3 unmountable without raquetry mounted on a plate 8 carrying a pin 7 via a cock 80.
  • the cock 80 is of unobstructed shape, and comprises at least one clearance 81 to facilitate a suction flow created in the mechanism 10 during a resumption of machining of the balance 2 on the peripheral surface 20 for the setting of inertia and / or balancing the balance 2 on the assembly 1 assembled.
  • the suction would indeed be inefficient in the presence of two platinum surfaces 8 and 80 cock face to face on both sides of the balance 2
  • the plate 8 or a cock 80 that it has in the vicinity of this sprung-balance assembly 1 comprises at least one through hole 82 to facilitate a suction flow created in the mechanism 10 during a machining recovery.
  • the balance 2 on the peripheral surface 20 for the implementation of inertia and / or balancing of the balance 2 on the assembly 1 assembled.
  • the invention also relates to a watch movement 100 comprising such an oscillator mechanism 10 with balance-spiral assembly 1 spiral 3 foolproof, with piton 7 foolproof, without raquetterie and without other adjusting means in service that the set screws 9 described upper.
  • the clockwork movement 100 comprises such an oscillator mechanism 10 with a balance spring-balance 1 with a spiral 3 which can not be adjusted, with an inaccessible peak 7, without adjustment and without any adjustment means in service.
  • the invention also relates to a timepiece 200 comprising at least one such movement 100, preferably this piece 200 is a watch.
  • the invention also relates to a method of setting inertia or balancing of such a sprung-balance assembly 1 comprising at least one balance 2 pivoting about a pivot axis D and at least one spiral 3, by a machining restart, as defined above on a portion of the balance 2.
  • this balance sprung assembly 1 is subjected, during this resumption of machining of inertia setting and / or balancing, to a suction flow channeled through orifices 82 and / or clearances 81 of the plate 8 and cock 80 between which is mounted this sprung-balance assembly 1.
  • an envelope volume of action of the machining recovery means is defined, at least beyond a first surface 21 as defined above, and on the opposite side to the hairspring 3. with respect to this first surface 21.
  • the machining recovery means namely, as the case may be, the axes of the laser or plasma beams or the like, machining pins in directions such as the thermal effects or the chips or dust emitted do not come into the grip of the hairspring.
  • these axes are oriented in the sector of angle w, of value equal to the angle ⁇ , as visible on the figure 3 , so that the reflection of the rays, flows, chips and dust is done away from the hairspring 3.
  • the invention is well suited, in particular, to the machining of inertia recovery and / or balancing in an assembled motion.
  • the definition of a second envelope surface 22 of security as presented above, protects the other components of this movement, it is then ensured that the reflection of the streams and waste remains between the two surfaces 21 and 22.
  • the presence of a suitably oriented suction flow in particular ascending from S2 to S1 in the example of figure 3 , makes it possible to further improve this safety, and to ensure the cleanliness of the movement 10 after this recovery operation.
  • the movement 10 after its last adjustment of operation constituted by this operation of recovery of inertia and / or balancing of the balance, no longer undergoes adjustment in the factory. If the balance is equipped with adjustment screws 9, as explained above, the after-sales service then has a limited adjustment range.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Laser Beam Processing (AREA)
  • Micromachines (AREA)
EP12191481.6A 2012-11-06 2012-11-06 Spiralunruh-Einheit für Uhrwerk Withdrawn EP2728423A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP12191481.6A EP2728423A1 (de) 2012-11-06 2012-11-06 Spiralunruh-Einheit für Uhrwerk
JP2015540094A JP5925392B2 (ja) 2012-11-06 2013-10-22 計時器用ばね仕掛けバランスアセンブリの慣性設定又は平衡化
CN201380057773.7A CN104769512B (zh) 2012-11-06 2013-10-22 钟表游丝摆轮组件的惯量设定或平衡
EP13782685.5A EP2917792B1 (de) 2012-11-06 2013-10-22 Verfahren zur auswuchten einer spiralunruh-einheit für uhrwerk
PCT/EP2013/072011 WO2014072168A1 (fr) 2012-11-06 2013-10-22 Mise d'inertie ou d'équilibrage d'un ensemble balancier-spiral d'horlogerie
US14/441,062 US10114341B2 (en) 2012-11-06 2013-10-22 Inertia setting or poising of a timepiece sprung balance assembly
TW102140097A TWI610152B (zh) 2012-11-06 2013-11-05 時計振盪器機構、具有此振盪器機構之時計機芯、具有此時計機芯之時計，及設定被安裝在時計振盪器機構中之彈簧平衡件總成的慣量及平衡該彈簧平衡件總成之方法
HK15112793.7A HK1212051A1 (en) 2012-11-06 2015-12-29 Inertia or balance setting of a hairspring-balance assembly for a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12191481.6A EP2728423A1 (de) 2012-11-06 2012-11-06 Spiralunruh-Einheit für Uhrwerk

Publications (1)

Publication Number Publication Date
EP2728423A1 true EP2728423A1 (de) 2014-05-07

Family

ID=47172471

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12191481.6A Withdrawn EP2728423A1 (de) 2012-11-06 2012-11-06 Spiralunruh-Einheit für Uhrwerk
EP13782685.5A Active EP2917792B1 (de) 2012-11-06 2013-10-22 Verfahren zur auswuchten einer spiralunruh-einheit für uhrwerk

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13782685.5A Active EP2917792B1 (de) 2012-11-06 2013-10-22 Verfahren zur auswuchten einer spiralunruh-einheit für uhrwerk

Country Status (7)

Country Link
US (1) US10114341B2 (de)
EP (2) EP2728423A1 (de)
JP (1) JP5925392B2 (de)
CN (1) CN104769512B (de)
HK (1) HK1212051A1 (de)
TW (1) TWI610152B (de)
WO (1) WO2014072168A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HK1209578A2 (en) * 2015-02-17 2016-04-01 Master Dynamic Ltd Silicon hairspring
EP3273312A1 (de) * 2016-07-18 2018-01-24 ETA SA Manufacture Horlogère Suisse Verfahren zur gangeinstellung einer uhr
EP3654111B1 (de) 2018-11-15 2022-02-16 Nivarox-FAR S.A. Verfahren zur messung des drehmoments einer spiralfeder einer uhr
CN115202180B (zh) * 2022-07-12 2023-10-27 高武斌 钟表机芯位差修正器及修正方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH532284A (fr) * 1966-01-25 1972-07-31 Suwa Seikosha Kk Appareil pour l'équilibrage d'un rotor de pièce d'horlogerie
FR2179744A1 (de) * 1972-04-13 1973-11-23 Far Fab Assortiments Reunies
US20100157743A1 (en) * 2008-12-18 2010-06-24 Manufacture Roger Dubuis Sa Fixation of a spiral spring in a watch movement
EP2315082A2 (de) * 2009-10-26 2011-04-27 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Regulierorgan mit mindestens zwei Unruhen
CH704211A2 (fr) * 2010-12-15 2012-06-15 Swatch Group Res & Dev Ltd Blindage magnétique pour spiral de pièce d'horlogerie.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020191493A1 (en) * 2000-07-11 2002-12-19 Tatsuo Hara Spring, drive mechanism, device and timepiece using the spring
DE60333076D1 (de) * 2003-04-29 2010-08-05 Patek Philippe Sa Unruh- und fläche Spiralfederregulator für Uhrwerk
DE602004026849D1 (de) * 2004-07-02 2010-06-10 Nivarox Sa Spiralfeder mit modifizierter Aussenkurve
JP4992319B2 (ja) * 2006-07-10 2012-08-08 セイコーエプソン株式会社 時計
ATE501467T1 (de) * 2007-11-28 2011-03-15 Manuf Et Fabrique De Montres Et De Chronometres Ulysse Nardin Le Locle S A Mechanischer oszillator mit einem optimierten thermoelastischen koeffizienten
CH702156B1 (fr) * 2009-11-13 2017-08-31 Nivarox Far Sa Résonateur balancier-spiral pour une pièce d'horlogerie.
CH704693B1 (fr) * 2010-07-16 2015-08-14 Eta Sa Manufacture Horlogère Suisse Procédé d'ajustement de fréquence d'oscillation, et/ou d'ajustement d'inertie, et/ou d'équilibrage d'un composant mobile de mouvement d'horlogerie, ou d'un ensemble balancier-spiral d'horlogerie.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH532284A (fr) * 1966-01-25 1972-07-31 Suwa Seikosha Kk Appareil pour l'équilibrage d'un rotor de pièce d'horlogerie
FR2179744A1 (de) * 1972-04-13 1973-11-23 Far Fab Assortiments Reunies
US20100157743A1 (en) * 2008-12-18 2010-06-24 Manufacture Roger Dubuis Sa Fixation of a spiral spring in a watch movement
EP2315082A2 (de) * 2009-10-26 2011-04-27 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Regulierorgan mit mindestens zwei Unruhen
CH704211A2 (fr) * 2010-12-15 2012-06-15 Swatch Group Res & Dev Ltd Blindage magnétique pour spiral de pièce d'horlogerie.

Also Published As

Publication number Publication date
WO2014072168A4 (fr) 2014-07-03
WO2014072168A1 (fr) 2014-05-15
EP2917792B1 (de) 2017-07-05
JP2015537204A (ja) 2015-12-24
EP2917792A1 (de) 2015-09-16
US10114341B2 (en) 2018-10-30
US20150268632A1 (en) 2015-09-24
CN104769512B (zh) 2018-01-16
HK1212051A1 (en) 2016-06-03
TWI610152B (zh) 2018-01-01
CN104769512A (zh) 2015-07-08
JP5925392B2 (ja) 2016-05-25
TW201441776A (zh) 2014-11-01

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