EP2102717B1 - Oscillateur mecanique pour une piece d'horlogerie - Google Patents
Oscillateur mecanique pour une piece d'horlogerie Download PDFInfo
- Publication number
- EP2102717B1 EP2102717B1 EP07857010.8A EP07857010A EP2102717B1 EP 2102717 B1 EP2102717 B1 EP 2102717B1 EP 07857010 A EP07857010 A EP 07857010A EP 2102717 B1 EP2102717 B1 EP 2102717B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mechanical oscillator
- balance
- oscillator according
- counterweights
- axis
- 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
Links
- 239000000463 material Substances 0.000 claims description 60
- 229910003460 diamond Inorganic materials 0.000 claims description 15
- 239000010432 diamond Substances 0.000 claims description 15
- 239000010453 quartz Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 2
- 239000002113 nanodiamond Substances 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910001374 Invar Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- OANVFVBYPNXRLD-UHFFFAOYSA-M propyromazine bromide Chemical compound [Br-].C12=CC=CC=C2SC2=CC=CC=C2N1C(=O)C(C)[N+]1(C)CCCC1 OANVFVBYPNXRLD-UHFFFAOYSA-M 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/066—Manufacture of the spiral spring
-
- 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
- G04B17/063—Balance construction
-
- 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
Definitions
- the materials used for producing the balance and the hairspring in the most frequently used mechanical oscillators are chosen so that the variation of the moment of inertia of the balance and the variation of the return torque of the respective hairspring compensate each other.
- a cupro-beryllium alloy balance associated with a spiral made of specially designed alloys such as invar and élinvar, which is an alloy of iron-nickel having a coefficient very weak dilatation.
- This type of balance spring is however always sensitive to magnetic fields.
- the search for new alloys that can be used for producing the spiral is still relevant, as shown for example by the development of silinvar (TM) .
- the self-compensating result of these alloys is mainly the result of two contrary influences, notably that of the temperature and that of the magnetostriction on the modulus of elasticity of the metal.
- GB2416408 discloses a mechanical oscillator according to the preamble of claim 1.
- the present invention aims to at least significantly reduce the self-compensating effect of the spiral.
- the present invention proposes a spiral balance which is in wide temperature ranges insensitive to variations in temperature. temperature to avoid dilation and variation of the moment of inertia of the pendulum.
- the object of the present invention is to propose a spiral balance having an improved stability of its frequency, both with regard to its sensitivity to variations in temperature and amplitude, as well as to magnetic fields.
- the spring 12 is made from the same material as the balance 10. More specifically, the spring 12 and the plate 16 of the balance 10 are made of the same material. This embodiment of the balance 10 and / or its plate 16, and the spring 12 from the same material avoids the compensating effect of the spiral 12 relative to the balance 10, which thus has an almost constant inertia. As a result, the self-compensation between the balance 10 and the balance spring 12 is almost negligible.
- the material chosen to produce the rocker 10, and / or its board 16, and the spiral 12, is preferably non-magnetic and has the advantage of having a coefficient of thermal expansion preferably 5 ⁇ 10 -6 / C °, and even more preferably 2 ⁇ 10 -6 / ° C maximum.
- the density of the material is preferably in a range of 2.0 to 5.0 g / cm 3 , preferably 2.5 to 4.5 g / cm 3 , and still more preferably 3 to 4.0 g / cm 3 .
- the shaft 14 of the balance 10 has an axis of symmetry, designated as the axis AA, which is also its pivot axis.
- the shaft 14 is conventionally made of hardened steel and comprises a plate 14a, cylindrical portions 14b, 14c and 14d disposed on either side of the plate 14a and intended to receive respectively the shell 20, the plate 16 and the plateau 22. Its ends form pivots 14e and 14f intended to be engaged in bearings constituted in the frame of the timepiece, not shown in the drawing.
- the rocker 10 and / or the spiral 12 are coated with nanoparticles of a material which is preferably non-magnetic and has the advantage of having a coefficient of thermal expansion of 5 ⁇ 10 -6 / ° C, and even more preferably 2 ⁇ 10 -6 / ° C maximum.
- the density of said material is preferably in a range of 2.0 to 5.0 g / cm 3 , preferably 2.5 to 4.5 g / cm 3 , and still more preferably 3 to 4.0 g / cm 3 .
- the balance 10 and the balance spring 12 have a nano-diamond coating.
- This coating is also advantageously applicable to a sprung balance known to those skilled in the art, such as, for example, a sprung balance comprising a balance made of cupro-beryllium alloy associated with a spiral made of alloys specially studied as per example the invar.
- the weights 18 are each formed of a nail 18a of cylindrical shape having an axis of symmetry, designated in the Fig. 2 as the BB axis, a heavy material whose density is greater than 15 g / cm 3 , for example gold or platinum, provided with a head 18b and a body 18c, and a ring 18d made of the same material.
- the body 18c of each of the weights 18 is engaged in a hole 16d, the head 18b bearing against the board 16.
- the ring 18d associated with it is fixed on the other side of the board 16, by driving, gluing or welding.
- the weights 18 have a symmetrical structure with respect to the axis BB of each of the nails 18a. In this way, during changes in temperature, the nails expand or contract radially relative to the axis BB, without their center of gravity moves. Consequently, as a first approximation, this expansion does not modify the inertia of the pendulum.
- the weights 19 have a center of gravity offset from the axis of the hole 16d in which they are engaged. In this way, by turning them, it is possible to modify the moment of inertia and thus correct the frequency of the oscillator. To allow this rotation, the weights 19 comprise a cylindrical portion 19a provided with axially oriented slots 19b, allowing a frictional attachment.
- a low coefficient of thermal expansion and an optimized mass-radius ratio are obtained. More particularly, like the mechanical oscillator of Fig. 1 and 2 comprising the balance 10 and the spiral 12 is made from a very stable material relative to the temperature, its frequency is very stable and varies very little depending on the temperature. This frequency stability is enhanced by the fact that the flyweights 18 have a fixed center of gravity with respect to the axis of the balance 10. This makes it possible to achieve a high degree of isochronism of the mechanical oscillator according to a preferred embodiment of the invention. embodiment of the present invention, as illustrated in the Fig. 3 .
- the Fig. 3 illustrates a diagram showing exemplary day-to-day variations of two different mechanical oscillators by way of example. These diurnal cycle variations are represented in seconds ([s]) on an axis 41, depending on the different temperatures at which the corresponding mechanical oscillators were tested. These temperatures are represented in degrees Celsius ([° C]] on an axis 31.
- the material used to make the weights 18 preferably has a specific mass greater than 10. It may be in particular gold or platinum, while the balance 10 and the spiral 12 are made of diamond. In this way, the ratio between the moment of inertia and the specific mass is particularly favorable.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Micromachines (AREA)
- Electric Clocks (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07857010.8A EP2102717B1 (fr) | 2006-12-21 | 2007-12-20 | Oscillateur mecanique pour une piece d'horlogerie |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06026620 | 2006-12-21 | ||
CH02119/06A CH701155B1 (fr) | 2006-12-27 | 2006-12-27 | Oscillateur pour pièce d'horlogerie. |
PCT/EP2007/011287 WO2008080570A2 (fr) | 2006-12-21 | 2007-12-20 | Oscillateur mecanique pour une piece d'horlogerie |
EP07857010.8A EP2102717B1 (fr) | 2006-12-21 | 2007-12-20 | Oscillateur mecanique pour une piece d'horlogerie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2102717A2 EP2102717A2 (fr) | 2009-09-23 |
EP2102717B1 true EP2102717B1 (fr) | 2013-06-26 |
Family
ID=39589024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07857010.8A Active EP2102717B1 (fr) | 2006-12-21 | 2007-12-20 | Oscillateur mecanique pour une piece d'horlogerie |
Country Status (4)
Country | Link |
---|---|
US (1) | US8240910B2 (ja) |
EP (1) | EP2102717B1 (ja) |
JP (1) | JP2010513886A (ja) |
WO (1) | WO2008080570A2 (ja) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2104008A1 (fr) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Organe régulateur monobloc et son procédé de fabrication |
EP2104005A1 (fr) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Balancier composite et son procédé de fabrication |
US10324419B2 (en) * | 2009-02-06 | 2019-06-18 | Domasko GmbH | Mechanical oscillating system for a clock and functional element for a clock |
EP2395402B1 (fr) * | 2010-06-11 | 2014-03-12 | Montres Breguet SA | Balancier haute fréquence pour pièce d'horlogerie |
EP2410386B1 (fr) * | 2010-07-19 | 2018-10-03 | Nivarox-FAR S.A. | Balancier à réglage d'inertie avec insert |
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 |
US9164485B2 (en) | 2010-08-06 | 2015-10-20 | Damasko Gmbh | Oscillating body, mechanical oscillating system for wristwatches with such an oscillating body and watch with such an oscillating system |
EP2466396A1 (fr) * | 2010-12-15 | 2012-06-20 | The Swatch Group Research and Development Ltd. | Blindage magnétique pour spiral de pièce d'horlogerie |
CH704924B1 (de) * | 2011-05-13 | 2015-05-29 | Bucherer Ag | Unruh für eine Uhr sowie Uhr. |
CN104011609B (zh) * | 2011-12-22 | 2017-10-24 | 斯沃奇集团研究和开发有限公司 | 改进轮副的枢转的方法 |
JP2013195297A (ja) * | 2012-03-21 | 2013-09-30 | Seiko Instruments Inc | てんぷ構造体及び機械式時計 |
EP2680090A1 (fr) * | 2012-06-28 | 2014-01-01 | Nivarox-FAR S.A. | Ressort-moteur pour une pièce d'horlogerie |
EP2703909A1 (fr) | 2012-09-04 | 2014-03-05 | The Swatch Group Research and Development Ltd. | Résonateur balancier - spiral appairé |
EP2717103B1 (fr) * | 2012-10-04 | 2017-01-11 | The Swatch Group Research and Development Ltd. | Spiral lumineux |
CH707811A2 (fr) * | 2013-03-19 | 2014-09-30 | Nivarox Sa | Composant monobloc indémontable d'horlogerie. |
CH707815B1 (fr) * | 2013-03-19 | 2017-05-31 | Nivarox Far Sa | Sous-ensemble de mécanisme d'échappement d'horlogerie comportant un ressort-spiral. |
EP2784602B1 (fr) * | 2013-03-26 | 2018-12-05 | Montres Breguet SA | Arbre de mobile à géométrie optimisée en environnement magnétique |
USD759527S1 (en) * | 2013-10-16 | 2016-06-21 | Swatch Ltd | Oscillating weight |
WO2016203953A1 (ja) | 2015-06-15 | 2016-12-22 | シチズン時計株式会社 | 時計の調速装置 |
EP3584640B1 (fr) | 2016-06-13 | 2023-01-11 | Rolex Sa | Oscillateur horloger |
EP3502786A1 (fr) | 2017-12-22 | 2019-06-26 | The Swatch Group Research and Development Ltd | Balancier pour pièce d'horlogerie et procédé de fabrication d'un tel balancier |
EP3647883A1 (fr) * | 2018-11-05 | 2020-05-06 | CSEM Centre Suisse D'electronique Et De Microtechnique SA | Balancier d'une piece d'horlogerie |
EP3719588B1 (fr) * | 2019-04-03 | 2021-11-03 | The Swatch Group Research and Development Ltd | Oscillateur horloger auto-réglable |
CH716384A1 (fr) * | 2019-07-02 | 2021-01-15 | Soprod Sa | Oscillateur pour mouvement horloger et pièce d'horlogerie comportant un tel oscillateur. |
EP3839644A1 (fr) * | 2019-12-20 | 2021-06-23 | Nivarox-FAR S.A. | Composant horloger flexible, notamment pour mecanisme oscillateur, et mouvement d'horlogerie comportant un tel composant |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB845773A (en) * | 1956-08-10 | 1960-08-24 | Junghans Geb Ag | Improvements in or relating to balance wheels |
CH534377A (fr) * | 1967-06-02 | 1970-07-31 | Far Fab Assortiments Reunies | Mouvement de pièce d'horlogerie |
US3942317A (en) * | 1974-12-03 | 1976-03-09 | Ebauches Bettlach S.A. | Component parts for watch movements |
CH604226B5 (ja) * | 1975-12-12 | 1978-08-31 | Ebauchesfabrik Eta Ag | |
FR2731715B1 (fr) * | 1995-03-17 | 1997-05-16 | Suisse Electronique Microtech | Piece de micro-mecanique et procede de realisation |
EP0957414B1 (fr) * | 1998-05-07 | 2003-02-12 | Janvier S.A. | Masse de remontage oscillante pour pièce d'horlogerie à mouvement automatique et pièce d'horlogerie équipée d'une telle masse de remontage |
US6855593B2 (en) | 2002-07-11 | 2005-02-15 | International Rectifier Corporation | Trench Schottky barrier diode |
EP1543386B1 (fr) * | 2002-09-25 | 2008-10-22 | Fore Eagle Co Ltd | Pieces mecaniques |
EP1445670A1 (fr) * | 2003-02-06 | 2004-08-11 | ETA SA Manufacture Horlogère Suisse | Spiral de résonateur balancier-spiral et son procédé de fabrication |
EP1654597B1 (fr) * | 2003-08-13 | 2009-11-11 | Fore Eagle Co Ltd | Balancier thermocompense |
DE60314142T2 (de) * | 2003-10-01 | 2008-01-24 | Asulab S.A. | Uhr mit einem mechanischen Uhrwerk, das mit einem elektronischen Regulator gekoppelt ist |
GB2416408B (en) | 2003-10-20 | 2006-06-07 | Gideon Levingston | Balance wheel, balance spring and other components and assemblies for a mechanical oscillator system and method of manufacture |
GB0324439D0 (en) * | 2003-10-20 | 2003-11-19 | Levingston Gideon R | Minimal thermal variation and temperature compensating non-magnetic balance wheels and methods of production of these and their associated balance springs |
ATE421720T1 (de) * | 2004-04-06 | 2009-02-15 | Nivarox Sa | Spiralrolle ohne deformation des fixierungsradius der spiralfeder und herstellungsverfahren derartige spiralrolle |
-
2007
- 2007-12-20 WO PCT/EP2007/011287 patent/WO2008080570A2/fr active Application Filing
- 2007-12-20 US US12/519,901 patent/US8240910B2/en not_active Expired - Fee Related
- 2007-12-20 EP EP07857010.8A patent/EP2102717B1/fr active Active
- 2007-12-20 JP JP2009541895A patent/JP2010513886A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2010513886A (ja) | 2010-04-30 |
EP2102717A2 (fr) | 2009-09-23 |
US20100054090A1 (en) | 2010-03-04 |
US8240910B2 (en) | 2012-08-14 |
WO2008080570A3 (fr) | 2009-02-26 |
WO2008080570A2 (fr) | 2008-07-10 |
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