EP2405313A1 - Spiralfeder mit unbeweglichem Massenzentrum - Google Patents
Spiralfeder mit unbeweglichem Massenzentrum Download PDFInfo
- Publication number
- EP2405313A1 EP2405313A1 EP11169540A EP11169540A EP2405313A1 EP 2405313 A1 EP2405313 A1 EP 2405313A1 EP 11169540 A EP11169540 A EP 11169540A EP 11169540 A EP11169540 A EP 11169540A EP 2405313 A1 EP2405313 A1 EP 2405313A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spiral
- curve
- order
- center
- spring
- 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
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
-
- 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
Definitions
- the invention relates to a hairspring used to form a pendulum - balance resonator whose curvature allows a substantially immobile center of mass development.
- EP 2 184 652 , EP 2 196 867 and EP 2,105,807 explain how to manufacture curved spirals in micro-machinable materials respectively with three parts, two parts or integrally. These documents are incorporated by reference into the present description.
- the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a hairspring respecting predetermined conditions capable of reducing the displacement of the center of mass of the hairspring in contraction and expansion.
- the invention relates to a resonator for a timepiece having an inertia such as, for example, a rocker characterized in that the inertia cooperates with a hairspring according to one of the previous variants.
- the hairspring is generally adapted so that its variation as a function of the same amplitude is substantially opposite that of the exhaust.
- the spiral is adapted so that its variation is minimal between the four vertical positions.
- a hairspring 1 comprising a first hairspring 3 whose curve extends in a first plane, a second hairspring 5 whose curve extends in a second plane parallel to the foreground .
- Each end of spiral spring 3, 5 being secured by a fastener 4 to form a double spiral in series.
- the curve of the first spiral spring 3 and the curve of the second spiral spring 5 preferably comprise, each step, a continuously variable pitch and are symmetrical with respect to a line A parallel to the first and second passing planes. by the centers of the median plane P of projection of the fastener 4 and the axis of the balance.
- the spiral spring 3 comprises a ferrule 6 in one piece and the end of the spiral spring 5, which is opposite the fastener 4, is secured to a stud 7. It has been chosen a pendulum inertia s' raising to 8 mg.cm 2 and a spiral 1 of silicon of a section of 0.0267 mm x 0.1 mm and a length L of 46 mm.
- the result of the simulation illustrated in figure 12 has a very favorable result of 0.3 sr -1 at 300 °. We immediately understand the advantage of these new conditions compared to those including MM. Phillips and Grossmann with whom adjustments are still necessary to reduce the "belly”.
- the attachment can become a non-negligible mass and considerably amplify the anisochronism as visible in the figure 13 in which the gait variation reaches 11.8 sr -1 at 200 °.
- the invention proposes to cancel the unbalance of the fastener by symmetrically relating an unbalance to the two spiral springs 3, 5.
- the reported unbalance is formed by two counterweights 8 ', 9' substantially identical on each spiral spring 3 ', 5' as illustrated in FIGS. Figures 14 and 15 .
- the masses of the counterweights 8 ', 9' are substantially equal and their sum is greater or lesser than that of the fastener 4 'according to the difference in distance between, on the one hand, the fastener 4' and the balance shaft, and, on the other hand, the counterweights 8 ', 9' and said balance shaft. It is understood that in case of substantially equivalent distance, the masses added counterweight 8 ', 9' will form a mass substantially equivalent to that of the fastener 4 '. This advantageously makes it possible to obtain, with the same criteria above, a favorable variation in the path from 1.4 sj -1 to 200 ° as illustrated in FIG. figure 16 .
- the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
- other framing criteria may be provided such as for example a limitation of the ratio between the inner radius and the outer radius so that the ends of the spiral springs are not too close to the point of origin where must be present the balance shaft.
- the spiral when the spiral is silicon, it can be at least partially covered with silicon dioxide to make it less sensitive to temperature variations and mechanical shocks.
- each counterweight 8 ', 9' can be different. They can in particular be formed each of two distinct masses that is to say that there could be four counterweights.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Springs (AREA)
- Micromachines (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11169540.9A EP2405313B1 (de) | 2010-07-09 | 2011-06-10 | Spiralfeder mit unbeweglichem Massenzentrum |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10169068A EP2405312A1 (de) | 2010-07-09 | 2010-07-09 | Spiralfeder für Unruh mit zwei Stufen und unbeweglichem Massenzentrum |
EP11169540.9A EP2405313B1 (de) | 2010-07-09 | 2011-06-10 | Spiralfeder mit unbeweglichem Massenzentrum |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2405313A1 true EP2405313A1 (de) | 2012-01-11 |
EP2405313B1 EP2405313B1 (de) | 2017-08-16 |
Family
ID=43384434
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10169068A Withdrawn EP2405312A1 (de) | 2010-07-09 | 2010-07-09 | Spiralfeder für Unruh mit zwei Stufen und unbeweglichem Massenzentrum |
EP11169540.9A Active EP2405313B1 (de) | 2010-07-09 | 2011-06-10 | Spiralfeder mit unbeweglichem Massenzentrum |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10169068A Withdrawn EP2405312A1 (de) | 2010-07-09 | 2010-07-09 | Spiralfeder für Unruh mit zwei Stufen und unbeweglichem Massenzentrum |
Country Status (6)
Country | Link |
---|---|
US (1) | US8480294B2 (de) |
EP (2) | EP2405312A1 (de) |
JP (1) | JP5350441B2 (de) |
KR (1) | KR20120005949A (de) |
CN (1) | CN102314144B (de) |
HK (1) | HK1165870A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2397919B1 (de) * | 2010-06-21 | 2017-11-08 | Montres Breguet SA | Herstellungsverfahren einer Spiralfederanordnung einer Uhr aus mikro-bearbeitbarem Material oder Silizium |
EP2570871B1 (de) | 2011-09-14 | 2014-03-19 | Montres Breguet SA | Spirale mit zwei Spiralfedern |
EP2613206B1 (de) | 2012-01-05 | 2022-05-11 | Montres Breguet SA | Spirale mit zwei Spiralfedern mit verbessertem Isochronismus |
US9658598B2 (en) * | 2012-07-17 | 2017-05-23 | Master Dynamic Limited | Hairspring for a time piece and hairspring design for concentricity |
CH706766A2 (fr) * | 2012-07-26 | 2014-01-31 | Nivarox Sa | Spiral d'horlogerie anti-galop. |
JP6013224B2 (ja) * | 2013-02-19 | 2016-10-25 | セイコーインスツル株式会社 | ひげぜんまい、ムーブメント、時計及びひげぜんまいの製造方法 |
JP6057766B2 (ja) * | 2013-02-19 | 2017-01-11 | セイコーインスツル株式会社 | ひげぜんまい、ムーブメント、時計及びひげぜんまいの製造方法 |
EP2884347A1 (de) * | 2013-12-16 | 2015-06-17 | ETA SA Manufacture Horlogère Suisse | Spiralfeder mit Vorrichtung zum Verhindern der gegenseitigen Annäherung der Federwindungen |
EP2887154B1 (de) * | 2013-12-20 | 2016-07-20 | Blancpain SA. | Befestigungsmechanismus eines Spiralklötzchen an eine Unruhbrücke, und Reguliervorrichtung mit Unruh-Spiralfeder, die einen solchen Mechanismus umfasst |
EP3081996B1 (de) * | 2015-04-16 | 2019-02-27 | Montres Breguet S.A. | Spirale aus mikrobearbeitbarem material mit isochronismus-korrektur |
JP6629854B2 (ja) * | 2015-06-15 | 2020-01-15 | シチズン時計株式会社 | 時計の調速装置 |
WO2017163148A1 (fr) * | 2016-03-23 | 2017-09-28 | Patek Philippe Sa Geneve | Oscillateur balancier-spiral pour piece d'horlogerie |
EP3252541A1 (de) * | 2016-06-01 | 2017-12-06 | Rolex Sa | Teil zum befestigen einer unruhspiralfeder |
EP3252542B1 (de) * | 2016-06-01 | 2022-05-18 | Rolex Sa | Teil zur befestigung einer unruhspirale |
JP6847757B2 (ja) * | 2017-05-09 | 2021-03-24 | セイコーインスツル株式会社 | ムーブメント及び時計 |
WO2019103977A1 (en) * | 2017-11-21 | 2019-05-31 | Firehouse Horology, Inc. | Geometries for hairsprings for mechanical watches enabled by nanofabrication |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2104006A1 (de) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Monoblock-Doppelspirale und ihr Herstellungsverfahren |
EP2105807A1 (de) | 2008-03-28 | 2009-09-30 | Nivarox-FAR S.A. | Monoblockspirale zur Erhöhung der kurve und ihr Herstellungsverfahren |
EP2184652A1 (de) | 2008-11-06 | 2010-05-12 | Montres Breguet SA | Spiralfeder mit Endkurvenerhöhung aus mikro-bearbeitbarem Material |
EP2196867A1 (de) | 2008-12-15 | 2010-06-16 | Montres Breguet S.A. | Spirale mit Kurvenerhöhung aus Material auf Siliziumbasis |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US30247A (en) * | 1860-10-02 | Watch | ||
US570394A (en) * | 1896-10-27 | Hair-spring for watches | ||
US109826A (en) * | 1870-12-06 | Improvement in the hair-springs of watches | ||
US2632292A (en) * | 1949-02-16 | 1953-03-24 | Gen Time Corp | Impulse electric clock |
DE2902810C2 (de) * | 1979-01-25 | 1981-01-15 | Erich Prof. 5000 Koeln Schiebuhr | Unruh für zeithaltende Geräte |
EP2104007A1 (de) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Monoblockspirale aus Material auf Siliziumbasis und ihr Herstellungsverfahren |
EP2151722B8 (de) * | 2008-07-29 | 2021-03-31 | Rolex Sa | Spiralfeder für Spiralfeder-Unruh-Resonator |
-
2010
- 2010-07-09 EP EP10169068A patent/EP2405312A1/de not_active Withdrawn
-
2011
- 2011-06-10 EP EP11169540.9A patent/EP2405313B1/de active Active
- 2011-06-28 KR KR1020110062572A patent/KR20120005949A/ko active IP Right Grant
- 2011-07-07 US US13/177,845 patent/US8480294B2/en not_active Expired - Fee Related
- 2011-07-08 CN CN2011101907402A patent/CN102314144B/zh not_active Expired - Fee Related
- 2011-07-11 JP JP2011152652A patent/JP5350441B2/ja not_active Expired - Fee Related
-
2012
- 2012-07-05 HK HK12106587.2A patent/HK1165870A1/xx not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2104006A1 (de) * | 2008-03-20 | 2009-09-23 | Nivarox-FAR S.A. | Monoblock-Doppelspirale und ihr Herstellungsverfahren |
EP2105807A1 (de) | 2008-03-28 | 2009-09-30 | Nivarox-FAR S.A. | Monoblockspirale zur Erhöhung der kurve und ihr Herstellungsverfahren |
EP2184652A1 (de) | 2008-11-06 | 2010-05-12 | Montres Breguet SA | Spiralfeder mit Endkurvenerhöhung aus mikro-bearbeitbarem Material |
EP2196867A1 (de) | 2008-12-15 | 2010-06-16 | Montres Breguet S.A. | Spirale mit Kurvenerhöhung aus Material auf Siliziumbasis |
Also Published As
Publication number | Publication date |
---|---|
US8480294B2 (en) | 2013-07-09 |
JP2012018169A (ja) | 2012-01-26 |
CN102314144B (zh) | 2013-06-19 |
EP2405312A1 (de) | 2012-01-11 |
JP5350441B2 (ja) | 2013-11-27 |
HK1165870A1 (en) | 2012-10-12 |
KR20120005949A (ko) | 2012-01-17 |
EP2405313B1 (de) | 2017-08-16 |
CN102314144A (zh) | 2012-01-11 |
US20120008467A1 (en) | 2012-01-12 |
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