EP2102717A2 - Mechanischer oszillator für uhr - Google Patents
Mechanischer oszillator für uhrInfo
- Publication number
- EP2102717A2 EP2102717A2 EP07857010A EP07857010A EP2102717A2 EP 2102717 A2 EP2102717 A2 EP 2102717A2 EP 07857010 A EP07857010 A EP 07857010A EP 07857010 A EP07857010 A EP 07857010A EP 2102717 A2 EP2102717 A2 EP 2102717A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mechanical oscillator
- balance
- oscillator according
- board
- weights
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 65
- 239000010432 diamond Substances 0.000 claims description 15
- 229910003460 diamond Inorganic materials 0.000 claims description 15
- 239000010453 quartz Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 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
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000010355 oscillation Effects 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
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 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
- 229910000952 Be alloy Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 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
- 239000000835 fiber Substances 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
- 239000000696 magnetic material Substances 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
- 239000002113 nanodiamond Substances 0.000 description 1
- 239000002105 nanoparticle 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
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 present invention relates to a mechanical oscillator for a timepiece, and more particularly to a mechanical oscillator for a wristwatch which has a high degree of isochronism.
- the materials used to produce 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 hairspring is still relevant, as evidenced, for example, by the development of silinvar TM 1 .
- 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.
- Minimizing the isochronism defect is crucial for optimizing the accuracy of mechanical watches. This consists in producing a spiral balance having a high degree of isochronism allowing it to generate oscillations equal and independent of their amplitude. Thus, a beam as light as possible is frequently used, with as much inertia as possible.
- This sprung balance is provided with a balance composed of a non-magnetic ceramic for which the coefficient of expansion The spiral is positive and less than + l * 10 ⁇ 6 K "1.
- the hairspring is made from a composite of continuous carbon fibers of twisted or parallel texture with respect to the axial directions of the fiber. a thermosetting polymer matrix, thermoplastic or ceramic. The coefficient of thermal expansion of this composite is negative and greater than -l * 10 ⁇ 6 K "1 . More particularly, the materials used for producing the balance and the hairspring are selected so that the values of their coefficients of thermal expansion are similar, very small and of opposite signs.
- this sprung balance makes it possible to obtain a high precision and a more stable operation of the oscillator thanks to a self-compensating effect of the spiral.
- 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.
- this object is achieved by a mechanical oscillator according to the invention, characterized by the production of the balance and the spiral in the same material.
- This embodiment of the balance and the hairspring from the same material avoids the compensating effect of the hairspring relative to the balance, which thus has an almost constant inertia. As a result, self-compensation between the balance and the balance spring becomes negligible.
- Fig. 1 an enlarged view of the top of a mechanical oscillator according to the invention
- Fig. 2 an enlarged view of the mechanical oscillator of FIG. 1 in section
- Fig. 3 a diagram showing diurnal step variations of two different mechanical oscillators.
- Figs. 1 and 2 illustrate, by way of example, a mechanical oscillator of the spiral-balance type comprising a balance 10 and a balance spring 12.
- the balance 10 comprises a shaft 14, a board 16 mounted rigidly on the shaft 14 and flyweights 18, d a first type, and 19 of a second type, a ferrule 20 and a plate 22.
- the spiral 12 is made of a material that may or may not be the same as that used to make the plate 16 of the balance 10.
- the spiral 12 is made from the same material as the rocker 10. More specifically, the spiral 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 of 20 to 2 * 10 ⁇ 10 ppm / ° C maximum.
- the thermal expansion coefficient is preferably 5-10 "6 ppm / ° C, and still more preferably 2-10 6 ppm / ° 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 .
- this material is diamond or synthetic diamond and, more generally, a diamond-based material.
- other materials may be used, as described in more detail below, such as, for example, quartz, silicon, carbon, titanium or ceramic.
- the shaft 14 of the balance 10 has an axis of symmetry, designated as the axis AA, which is also its axis of pivoting.
- 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 board 16 has a central hole 16a and eight radially oriented openings defining eight arms 16b.
- the outer ends of the arms 16b are interconnected to form a serge 16c.
- the latter is pierced, in the extension of the arms 16b, holes 16d oriented parallel to the axis AA and in which the weights 18 and 19 are fixed.
- the base of the serge 16c may be made of a material other than the board 16. In this case, when the board 16 is for example made of diamond, a diamond coating may be applied to the serge 16c in order to obtain the same physical characteristics for serge 16c as for board 16.
- 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 20 to 2 * 10 ⁇ 10 ppm / ° C maximum.
- This coefficient of thermal expansion is preferably 5-10 "6 ppm / ° C, and still more preferably 2-10 " 6 ppm / ° 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 board 16 is in abutment against the plate 14a and positioned by the cylindrical portion 14c. It is fixed to the shaft 14 by glue points 24 arranged in housings formed in the periphery of the hole 16a.
- the shell 20 is driven onto the shaft 14 in its cylindrical portion 14d, bearing against the board 16. It carries, mounted by gluing, the spring 12.
- the board 16 is formed of a plate of a low density material with a low coefficient of thermal expansion, such as for example diamond, corundum, quartz or silicon, and whose thickness is of the order of a few tenths of millimeters. More particularly, this thickness is preferably in a range of 0.05 mm to 0.3 mm, and is typically 0.2 mm.
- the hairspring 12 is made of a material that may or may not be the same as that used to make the balance 10 and / or its board 16. Thus, the material used to make the hairspring 12 may also be used. be selected from the above exemplified materials, ie diamond, quartz, silicon or corundum. The elasticity and length of these materials vary very little with temperature.
- the weights 18 are each formed of a cylindrical nail 18a having an axis of symmetry, designated in FIG. 1 as the BB axis, of 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.
- the material used to make the balance 10 and the spiral 12 of the mechanical oscillator according to the present invention is likely to be insensitive to temperature.
- this material is likely to be consistent with the margins established by the Swiss chronological chronometric criteria listed in Table 1 illustrated below.
- Nonlimiting examples of materials satisfying the criteria indicated in Table 1, which are thus usable in the context of the present invention, are diamond, titanium, ceramic and quartz, as already described in more detail above. These materials have the following physical properties:
- Fig. 3 illustrates a diagram showing exemplary diurnal cycle 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 ([ 0 C]] on an axis 31.
- a first curve 30 illustrates a diurnal step variation of a timepiece comprising a standard mechanical oscillator. As shown in FIG. 3, this day-time variation is between a 6-second advance, as indicated by point 32, and a delay of 4 seconds, as indicated by point 34, when the timepiece is tested in a range. of temperatures between +8 and +38 0 C.
- a second curve 40 illustrates a diurnal step variation of this timepiece when it is made with a mechanical oscillator according to a preferred embodiment of the present invention.
- the variation in daytime running is between a zero advance, as indicated in point 42, and a delay of approximately 1.3 seconds, as indicated in point 44, during the test of the workpiece. in the temperature range between +8 and +38 0 C.
- this frequency stability relative to the temperature of the mechanical oscillator according to the invention is added to other advantages obtained by the choice of the material used.
- the materials constituting the balance 10 and spiral 12 being non-magnetic, a magnetic field can not interact with them. Only in the configuration described above, which uses the shaft 14 made of hardened steel, a magnetic field can interact with the shaft 14, but the influence of this interaction is virtually zero.
- the specific mass of the constituent material of the board 16 is small, while the material constituting the weights 18, 19 is high, the total mass of the balance 10 is low for a given moment of inertia. As a result, the isochronism defect can be further reduced.
- Weights 18, 19 gold or platinum can realize the balance 10 with a moment of inertia / mass ratio particularly favorable. It is also possible to use less expensive materials, for example brass or invar. In the latter case, the expansion of the weights 18, 19 could be further reduced.
- pendulums for timepieces must be balanced. This can be done by removing or adding material. This operation is particularly advantageous by working on the weights 18, which have a symmetrical structure with respect to their axis BB.
- at least a portion of said flyweights 18 preferably has a cylindrical shape of axis BB in their portion engaged in the board 16.
- the present invention also claims a method of balancing by removal or addition of material from / to the balance 10, characterized in that material is removed from at least one of said weights 18 so symmetrical with reference to the axis of the cylinder or in that the equilibration is achieved by adding the material to at least one of the weights 18 symmetrically with reference to the axis of its cylinder.
- 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 (de) | 2006-12-21 | 2007-12-20 | Mechanischer oszillator für uhr |
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. |
EP07857010.8A EP2102717B1 (de) | 2006-12-21 | 2007-12-20 | Mechanischer oszillator für uhr |
PCT/EP2007/011287 WO2008080570A2 (fr) | 2006-12-21 | 2007-12-20 | Oscillateur mecanique pour une piece d'horlogerie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2102717A2 true EP2102717A2 (de) | 2009-09-23 |
EP2102717B1 EP2102717B1 (de) | 2013-06-26 |
Family
ID=39589024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07857010.8A Active EP2102717B1 (de) | 2006-12-21 | 2007-12-20 | Mechanischer oszillator für uhr |
Country Status (4)
Country | Link |
---|---|
US (1) | US8240910B2 (de) |
EP (1) | EP2102717B1 (de) |
JP (1) | JP2010513886A (de) |
WO (1) | WO2008080570A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11982977B2 (en) | 2016-06-13 | 2024-05-14 | Rolex Sa | Method of manufacturing a timepiece shaft |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2104005A1 (de) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Composite-Unruh und Herstellungsverfahren dafür |
EP2104008A1 (de) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Monoblock-Regulierungsorgan und sein Herstellungsverfahren |
US10324419B2 (en) * | 2009-02-06 | 2019-06-18 | Domasko GmbH | Mechanical oscillating system for a clock and functional element for a clock |
EP2395402B1 (de) * | 2010-06-11 | 2014-03-12 | Montres Breguet SA | Hochfrequenzunruh für Uhr |
EP2410386B1 (de) | 2010-07-19 | 2018-10-03 | Nivarox-FAR S.A. | Unruh mit Trägheitsregulierung mit Einsatzteil |
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 |
EP2420900B1 (de) * | 2010-08-06 | 2019-02-27 | DAMASKO GmbH | Schwingkörper, mechanisches Schwingsystem für Armbanduhren mit einem solchen Schwingkörper sowie Uhr mit einem derartigen Schwingsystem |
EP2466396A1 (de) * | 2010-12-15 | 2012-06-20 | The Swatch Group Research and Development Ltd. | Magnetische Abschirmung für Spiralunruh einer Uhr |
CH704924B1 (de) * | 2011-05-13 | 2015-05-29 | Bucherer Ag | Unruh für eine Uhr sowie Uhr. |
EP2795408B1 (de) * | 2011-12-22 | 2018-01-24 | The Swatch Group Research and Development Ltd. | Verfahren zur verbesserung der schwenkbarkeit eines mobilen geräts |
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 (de) * | 2012-06-28 | 2014-01-01 | Nivarox-FAR S.A. | Triebfeder für Uhr |
EP2703909A1 (de) * | 2012-09-04 | 2014-03-05 | The Swatch Group Research and Development Ltd. | Gepaarter Spiralunruh-Schwinger |
EP2717103B1 (de) * | 2012-10-04 | 2017-01-11 | The Swatch Group Research and Development Ltd. | Leuchtende Spiralfeder |
EP2781967B1 (de) * | 2013-03-19 | 2018-07-04 | Nivarox-FAR S.A. | Spiralfeder einer Uhr |
EP2781969B1 (de) * | 2013-03-19 | 2017-05-03 | Nivarox-FAR S.A. | Unzerlegbare Monoblock-Komponente einer Uhr |
CH707791B1 (fr) * | 2013-03-26 | 2017-05-15 | Montres Breguet Sa | Arbre de mobile à géométrie configurée pour environnement magnétique. |
USD759527S1 (en) * | 2013-10-16 | 2016-06-21 | Swatch Ltd | Oscillating weight |
US10274897B2 (en) | 2015-06-15 | 2019-04-30 | Citizen Watch Co., Ltd. | Speed governor for timepiece |
EP3502786A1 (de) | 2017-12-22 | 2019-06-26 | The Swatch Group Research and Development Ltd | Unruh für uhr, und herstellungsverfahren einer solchen unruh |
EP3647883A1 (de) * | 2018-11-05 | 2020-05-06 | CSEM Centre Suisse D'electronique Et De Microtechnique SA | Unruh einer uhr |
EP3719588B1 (de) * | 2019-04-03 | 2021-11-03 | The Swatch Group Research and Development Ltd | Automatisch regulierbarer oszillator einer uhr |
CH716384A1 (fr) * | 2019-07-02 | 2021-01-15 | Soprod Sa | Oscillateur pour mouvement horloger et pièce d'horlogerie comportant un tel oscillateur. |
EP3839644A1 (de) * | 2019-12-20 | 2021-06-23 | Nivarox-FAR S.A. | Flexible uhrwerkskomponente, insbesondere für oszillationsmechanismus, und eine solche komponente umfassendes uhrwerk |
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 |
CH783467A4 (de) * | 1967-06-02 | 1970-07-31 | ||
US3942317A (en) * | 1974-12-03 | 1976-03-09 | Ebauches Bettlach S.A. | Component parts for watch movements |
CH604226B5 (de) * | 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 (de) * | 1998-05-07 | 2003-02-12 | Janvier S.A. | Schwungmasse für Uhren mit selbstaufziehendem Uhrwerk und damit ausgestattete Uhr |
US6855593B2 (en) | 2002-07-11 | 2005-02-15 | International Rectifier Corporation | Trench Schottky barrier diode |
ATE412205T1 (de) | 2002-09-25 | 2008-11-15 | Fore Eagle Co Ltd | Mechanische teile |
EP1445670A1 (de) * | 2003-02-06 | 2004-08-11 | ETA SA Manufacture Horlogère Suisse | Spiralfeder der Resonatorunruh und Fabrikationsmethode |
ATE448509T1 (de) | 2003-08-13 | 2009-11-15 | Fore Eagle Co Ltd | Unruh mit thermokompensation |
ATE363675T1 (de) * | 2003-10-01 | 2007-06-15 | Asulab Sa | 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 |
DE602004019183D1 (de) * | 2004-04-06 | 2009-03-12 | Nivarox Sa | Spiralrolle ohne Deformation des Fixierungsradius der Spiralfeder und Herstellungsverfahren derartige Spiralrolle |
-
2007
- 2007-12-20 JP JP2009541895A patent/JP2010513886A/ja active Pending
- 2007-12-20 EP EP07857010.8A patent/EP2102717B1/de active Active
- 2007-12-20 US US12/519,901 patent/US8240910B2/en not_active Expired - Fee Related
- 2007-12-20 WO PCT/EP2007/011287 patent/WO2008080570A2/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2008080570A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11982977B2 (en) | 2016-06-13 | 2024-05-14 | Rolex Sa | Method of manufacturing a timepiece shaft |
Also Published As
Publication number | Publication date |
---|---|
JP2010513886A (ja) | 2010-04-30 |
EP2102717B1 (de) | 2013-06-26 |
US20100054090A1 (en) | 2010-03-04 |
WO2008080570A2 (fr) | 2008-07-10 |
US8240910B2 (en) | 2012-08-14 |
WO2008080570A3 (fr) | 2009-02-26 |
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