EP1519250A1 - Spiralfeder-Unruh-Resonator mit Thermokompensation - Google Patents

Spiralfeder-Unruh-Resonator mit Thermokompensation Download PDF

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Publication number
EP1519250A1
EP1519250A1 EP03021787A EP03021787A EP1519250A1 EP 1519250 A1 EP1519250 A1 EP 1519250A1 EP 03021787 A EP03021787 A EP 03021787A EP 03021787 A EP03021787 A EP 03021787A EP 1519250 A1 EP1519250 A1 EP 1519250A1
Authority
EP
European Patent Office
Prior art keywords
spiral
quartz
axis
balance
angle
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
Application number
EP03021787A
Other languages
English (en)
French (fr)
Other versions
EP1519250B1 (de
Inventor
Thierry Hessler
Rudolf Dinger
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.)
Asulab AG
Original Assignee
Asulab AG
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 Asulab AG filed Critical Asulab AG
Priority to EP03021787A priority Critical patent/EP1519250B1/de
Priority to DE60333191T priority patent/DE60333191D1/de
Priority to US10/943,855 priority patent/US7503688B2/en
Priority to TW093128448A priority patent/TWI372952B/zh
Priority to KR1020040075712A priority patent/KR20050030558A/ko
Priority to CNB2004100801241A priority patent/CN100483271C/zh
Priority to JP2004279139A priority patent/JP4805560B2/ja
Publication of EP1519250A1 publication Critical patent/EP1519250A1/de
Priority to HK05106159.9A priority patent/HK1073697A1/xx
Application granted granted Critical
Publication of EP1519250B1 publication Critical patent/EP1519250B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature
    • G04B17/222—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature with balances
    • 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

Definitions

  • the present invention relates to a spring-balance resonator thermally compensated to reduce the diurnal temperature difference of a mechanical watch movement at a level comparable to that of a watch electronic quartz.
  • the daytime deviation of a mechanical movement depends mainly on the regulating devices, and in particular the sprung balance the frequency of oscillation can be influenced by variations in the factors outside, such as a change in temperature or the presence of a field magnetic.
  • the temperature acts in particular on the moment of inertia of the pendulum and on the elastic constant of the spiral, and modifies the frequency of the balance-spiral which is indeed a function of these two parameters.
  • the pendulum As for the pendulum, it is generally made of an alloy non-magnetic such as glucydur, making the oscillatory movement of the pendulum can not be disturbed by the proximity of magnetic materials.
  • an alloy non-magnetic such as glucydur
  • the object of the invention is to overcome the disadvantages of the aforementioned prior art in providing a balance-spring with an even smaller gap in especially because of a spiral made of a non-magnetic material whose coefficients of expansion and the thermal variation of the modulus of elasticity allow, during the manufacture, to adapt the elastic constant of said spiral to the moment of inertia of the balance.
  • E the modulus of elasticity
  • h the height of the spiral
  • e its thickness
  • L its developed length.
  • I mr 2 in which m represents the mass and r the radius of gyration, which obviously depends on the coefficient of expansion ⁇ of the pendulum.
  • the invention relates to a balance spring for mechanical horological movement in which the spiral is formed of turns of height h made from a single crystal quartz crystallographic axes x, y, z, the x axis, being the electric axis and the y axis the mechanical axis, the height h of the turns having substantially the same orientation as the crystallographic axis z. More precisely, the height h forms with the axis z an angle ⁇ which can vary between + 25 ° and -25 °, preferably between + 10 ° and -15 °, which makes it possible to vary the elastic constant of the spiral without modify the geometry.
  • quartz for the manufacture of a spiral also offers the advantage, besides its excellent thermal characteristics, to possess also excellent mechanical and chemical properties, particularly in aging, oxidation and sensitivity to magnetic fields.
  • the technique of photolithography and etching allows, on the one hand, to form in the quartz blade, together with the spiral as such, its attachment to the outside and the fastening shell in the center, on the other hand to freely choose other spiral parameters such as the thickness e of the turns or their pitch, at a point any of its development.
  • the quartz slide is cut according to a plane forming an angle ⁇ / 2 - ⁇ with respect to the crystallographic axis z, equivalent by rotating about the x axis, an angle ⁇ with respect to the direction of the height h of the spiral.
  • FIG. 1 there is shown the first step of the method of manufacturing a spiral according to the invention.
  • This step consists in taking a quartz bar 1 having for crystallographic axes xyz, and in cutting a blade 3 having for thickness the height h desired for the blade 3, for example of a few tenths millimeters.
  • the desired height h can also be obtained by cutting a blank which is then subjected in a known manner to a machining operation by chemical, physical or physicochemical means to thin the blade up to the height h .
  • This blade is cut along a plane xy 'forming an angle ⁇ with the xy plane perpendicular to the crystallographic axis z, that is to say by rotation of the xy plane by an angle ⁇ about the x axis.
  • Figure 2 also shows schematically, for an enlarged portion spiral near the curve in the center, the following steps of the process. These steps consist, according to known methods for the manufacture of micro-structures, to photolithographically form a mask for delimiting the contour 5 of the spiral, and define outside of said contour areas 7 to be eliminated to create the spiral.
  • the photolithography and etching process allows, if desired, at the same time form the clip on the outside and attach it to the center, ie a ferrule coming from material with the spiral. It also allows to freely choose other spiral parameters to improve its performance, such as the thickness of turns and / or their pitch, and this at any point of the development of the spiral.
  • the elimination of the zones 7 situated outside the contour can be carried out according to known methods, for example for the manufacture of tuning forks of electronic watches.
  • a wet etching can be carried out, in particular etching by means of a mixture of hydrofluoric acid and ammonium fluoride (HF / NH 4 F). It is also possible to carry out a dry attack, for example using the technique of reactive ion etching.
  • FIG. 4 represents a beam of curves giving the variation of running as a function of the temperature and showing how it is possible, by a simple variation of the angle ⁇ to obtain a minimum difference of market with balances having different coefficients of dilation, as shown in Table 1 below: coefficient of expansion ⁇ Angle ⁇ curve of 5.10 -6 K -1 - 14.6 ° curve e 10.10 -6 K -1 - 7 ° curve f 15.10 -6 K -1 + 7 °
  • the curve g corresponds to the tuning fork of an electronic watch taken as a reference.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Springs (AREA)
  • Micromachines (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
EP03021787A 2003-09-26 2003-09-26 Spiralfeder-Unruh-Resonator mit Thermokompensation Expired - Lifetime EP1519250B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP03021787A EP1519250B1 (de) 2003-09-26 2003-09-26 Spiralfeder-Unruh-Resonator mit Thermokompensation
DE60333191T DE60333191D1 (de) 2003-09-26 2003-09-26 Spiralfeder-Unruh-Resonator mit Thermokompensation
TW093128448A TWI372952B (en) 2003-09-26 2004-09-20 Thermoregulated sprung balance resonator
US10/943,855 US7503688B2 (en) 2003-09-26 2004-09-20 Thermoregulated sprung balance resonator
KR1020040075712A KR20050030558A (ko) 2003-09-26 2004-09-22 열조절 스프링 밸런스 공진기
CNB2004100801241A CN100483271C (zh) 2003-09-26 2004-09-23 温控的游丝摆轮谐振器
JP2004279139A JP4805560B2 (ja) 2003-09-26 2004-09-27 温度変化に対して調節されるばねてんぷ共振器
HK05106159.9A HK1073697A1 (en) 2003-09-26 2005-07-21 Thermoregulated sprung balance resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03021787A EP1519250B1 (de) 2003-09-26 2003-09-26 Spiralfeder-Unruh-Resonator mit Thermokompensation

Publications (2)

Publication Number Publication Date
EP1519250A1 true EP1519250A1 (de) 2005-03-30
EP1519250B1 EP1519250B1 (de) 2010-06-30

Family

ID=34178504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03021787A Expired - Lifetime EP1519250B1 (de) 2003-09-26 2003-09-26 Spiralfeder-Unruh-Resonator mit Thermokompensation

Country Status (8)

Country Link
US (1) US7503688B2 (de)
EP (1) EP1519250B1 (de)
JP (1) JP4805560B2 (de)
KR (1) KR20050030558A (de)
CN (1) CN100483271C (de)
DE (1) DE60333191D1 (de)
HK (1) HK1073697A1 (de)
TW (1) TWI372952B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1791039A1 (de) 2005-11-25 2007-05-30 The Swatch Group Research and Development Ltd. Spiralfeder aus athermisches Glas für ein Uhrwerk und Herstellungsverfahren dafür
JP2008501967A (ja) * 2004-06-08 2008-01-24 セーエスエーエム サントル スイス ドュレクトロニック エ ドゥ ミクロテクニック エスアー ルシェルシュ エ デヴロプマン 温度補償天輪／ヒゲゼンマイ発振器
WO2012127035A1 (fr) 2011-03-23 2012-09-27 Lvmh Swiss Manufactures Sa Element oscillant pour organe reglant horloger
EP2703909A1 (de) 2012-09-04 2014-03-05 The Swatch Group Research and Development Ltd. Gepaarter Spiralunruh-Schwinger
EP3056948A1 (de) * 2015-02-17 2016-08-17 Master Dynamic Limited Siliciumspiralfeder

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445670A1 (de) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode
WO2006123095A2 (en) * 2005-05-14 2006-11-23 Gideon Levingston Balance spring, regulated balance wheel assembly and methods of manufacture thereof
EP1818736A1 (de) * 2006-02-09 2007-08-15 The Swatch Group Research and Development Ltd. Stossfeste Spiralrolle
TWI438588B (zh) * 2006-03-24 2014-05-21 Eta Sa Mft Horlogere Suisse 由絕緣材料製成的微機械零件及其製造方法
DE602006011760D1 (de) * 2006-11-09 2010-03-04 Eta Sa Mft Horlogere Suisse Montageelement, das zwei Reihen von dehnbaren Strukturen umfasst, und dieses Element umfassende Uhr
ATE469377T1 (de) * 2006-11-09 2010-06-15 Eta Sa Mft Horlogere Suisse Montageelement, das dehnbare strukturen in form von aufeinander liegenden plättchen umfasst, und mit diesem element ausgerüstete uhr
ATE467860T1 (de) * 2006-11-09 2010-05-15 Eta Sa Mft Horlogere Suisse Montageelement, das dehnbare strukturen in form von gabeln umfasst, und dieses element umfassende uhr
DE602007013123D1 (de) * 2007-11-28 2011-04-21 Manuf Et Fabrique De Montres Et De Chronometres Ulysse Nardin Le Locle S A Mechanischer oszillator mit einem optimierten thermoelastischen koeffizienten
EP2105807B1 (de) 2008-03-28 2015-12-02 Montres Breguet SA Monoblockspirale zur Erhöhung der Kurve und ihr Herstellungsverfahren
EP2151722B8 (de) * 2008-07-29 2021-03-31 Rolex Sa Spiralfeder für Spiralfeder-Unruh-Resonator
CH699882A2 (fr) * 2008-11-06 2010-05-14 Montres Breguet Sa Spiral à élévation de courbe en matériau micro-usinable.
EP2196867A1 (de) * 2008-12-15 2010-06-16 Montres Breguet S.A. Spirale mit Kurvenerhöhung aus Material auf Siliziumbasis
US8720286B2 (en) * 2009-11-06 2014-05-13 Baker Hughes Incorporated Temperature insensitive devices and methods for making same
EP2395661A1 (de) * 2010-06-10 2011-12-14 The Swatch Group Research and Development Ltd. Temperaturkompensierter Resonator mit reduzierten Temperaturkoeffizienten erster und zweiter Ordnung
US8562206B2 (en) * 2010-07-12 2013-10-22 Rolex S.A. Hairspring for timepiece hairspring-balance oscillator, and method of manufacture thereof
CN104412175B (zh) * 2012-06-28 2017-05-17 尼瓦洛克斯-法尔股份有限公司 钟表的主发条
JP6486697B2 (ja) * 2014-02-26 2019-03-20 シチズン時計株式会社 ひげぜんまいの製造方法及びひげぜんまい
FR3032810B1 (fr) * 2015-02-13 2017-02-24 Tronic's Microsystems Oscillateur mecanique et procede de realisation associe
EP3176651B1 (de) * 2015-12-02 2018-09-12 Nivarox-FAR S.A. Herstellungsverfahren einer spiralfeder für eine uhr

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732635A1 (de) 1995-03-17 1996-09-18 C.S.E.M. Centre Suisse D'electronique Et De Microtechnique Sa Mikromechanischer Teil und Verfahren zur dessen Herstellung
US20030011119A1 (en) * 2000-02-07 2003-01-16 Masato Imai Quartz coil spring and method of producing the same
EP1302821A2 (de) * 2001-10-10 2003-04-16 Franck Muller-Watchland SA Spiralfeder für Zeitmessgerät

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CH564219A (de) * 1969-07-11 1975-07-15
JPS5329518B2 (de) * 1974-03-15 1978-08-21
US4410827A (en) * 1980-04-24 1983-10-18 Kabushiki Kaisha Suwa Seikosha Mode coupled notched tuning fork type quartz crystal resonator
JPH06117470A (ja) * 1992-10-07 1994-04-26 Yokogawa Electric Corp 渦巻きバネ及び指示電気計器
DE19651321C2 (de) * 1996-12-11 2002-08-14 Lothar Schmidt Unruh
US6877893B2 (en) * 1998-07-14 2005-04-12 Elmar Mock Timepiece with mechanical regulation
JP2004007420A (ja) * 2002-03-26 2004-01-08 Seiko Epson Corp 圧電振動片、圧電振動子および圧電デバイス
FR2842313B1 (fr) * 2002-07-12 2004-10-22 Gideon Levingston Oscilliateur mecanique (systeme balancier et ressort spiral) en materiaux permettant d'atteindre un niveau superieur de precision, applique a un mouvement d'horlogerie ou autre instrument de precision
EP1422436B1 (de) * 2002-11-25 2005-10-26 CSEM Centre Suisse d'Electronique et de Microtechnique SA Spiraluhrwerkfeder und Verfahren zu deren Herstellung
EP1445670A1 (de) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732635A1 (de) 1995-03-17 1996-09-18 C.S.E.M. Centre Suisse D'electronique Et De Microtechnique Sa Mikromechanischer Teil und Verfahren zur dessen Herstellung
US20030011119A1 (en) * 2000-02-07 2003-01-16 Masato Imai Quartz coil spring and method of producing the same
EP1302821A2 (de) * 2001-10-10 2003-04-16 Franck Muller-Watchland SA Spiralfeder für Zeitmessgerät

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008501967A (ja) * 2004-06-08 2008-01-24 セーエスエーエム サントル スイス ドュレクトロニック エ ドゥ ミクロテクニック エスアー ルシェルシュ エ デヴロプマン 温度補償天輪／ヒゲゼンマイ発振器
EP1791039A1 (de) 2005-11-25 2007-05-30 The Swatch Group Research and Development Ltd. Spiralfeder aus athermisches Glas für ein Uhrwerk und Herstellungsverfahren dafür
WO2007059876A2 (fr) 2005-11-25 2007-05-31 The Swatch Group Research And Development Ltd Spiral en verre athermique pour mouvement d’horlogerie et son procede de fabrication
JP2009517637A (ja) * 2005-11-25 2009-04-30 ザ スウォッチ グループ リサーチ アンド ディベロップメント リミティド． 時計のムーブメント用の熱ガラス製ゼンマイとその製造方法
US7753581B2 (en) 2005-11-25 2010-07-13 The Swatch Group Research And Development Ltd Spiral spring made of athermal glass for clockwork movement and method for making same
WO2012127035A1 (fr) 2011-03-23 2012-09-27 Lvmh Swiss Manufactures Sa Element oscillant pour organe reglant horloger
EP2703909A1 (de) 2012-09-04 2014-03-05 The Swatch Group Research and Development Ltd. Gepaarter Spiralunruh-Schwinger
EP2703910A2 (de) 2012-09-04 2014-03-05 The Swatch Group Research and Development Ltd. Gepaarter Spiralunruh-Schwinger
EP2703910A3 (de) * 2012-09-04 2014-05-14 The Swatch Group Research and Development Ltd. Gepaarter Spiralunruh-Schwinger
US9030920B2 (en) 2012-09-04 2015-05-12 The Swatch Group Research And Development Ltd. Resonator with matched balance spring and balance
EP3056948A1 (de) * 2015-02-17 2016-08-17 Master Dynamic Limited Siliciumspiralfeder
US9903049B2 (en) 2015-02-17 2018-02-27 Master Dynamic Limited Silicon hairspring

Also Published As

Publication number Publication date
TWI372952B (en) 2012-09-21
DE60333191D1 (de) 2010-08-12
CN1601402A (zh) 2005-03-30
JP2005106819A (ja) 2005-04-21
US7503688B2 (en) 2009-03-17
US20050068852A1 (en) 2005-03-31
TW200512553A (en) 2005-04-01
KR20050030558A (ko) 2005-03-30
CN100483271C (zh) 2009-04-29
JP4805560B2 (ja) 2011-11-02
EP1519250B1 (de) 2010-06-30
HK1073697A1 (en) 2005-10-14

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