EP2309345A2 - Herstellungsverfahren von Uhrwerken, die mit unterschiedlichen Frequenzen funktionieren - Google Patents

Herstellungsverfahren von Uhrwerken, die mit unterschiedlichen Frequenzen funktionieren Download PDF

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Publication number
EP2309345A2
EP2309345A2 EP11000484A EP11000484A EP2309345A2 EP 2309345 A2 EP2309345 A2 EP 2309345A2 EP 11000484 A EP11000484 A EP 11000484A EP 11000484 A EP11000484 A EP 11000484A EP 2309345 A2 EP2309345 A2 EP 2309345A2
Authority
EP
European Patent Office
Prior art keywords
movement
escapement
exhaust
movements
teeth
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
EP11000484A
Other languages
English (en)
French (fr)
Other versions
EP2309345A3 (de
EP2309345B1 (de
Inventor
Christophe Gigandet
Francisco Dias
Armin Behrend
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.)
Chopard Technologies SA
Original Assignee
Chopard Technologies 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
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Application filed by Chopard Technologies SA filed Critical Chopard Technologies SA
Publication of EP2309345A2 publication Critical patent/EP2309345A2/de
Publication of EP2309345A3 publication Critical patent/EP2309345A3/de
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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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • 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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/0092—Devices for positioning and sorting of the components

Definitions

  • the present invention relates to a mechanical watch movement.
  • Mechanical watch movements generally comprise, in particular, a barrel housing a mainspring, a train driven by the barrel and whose axes of some of the wheels carry indicator hands, a regulating member such as a balance-spring and, between the gear train and the regulating member, an escapement for maintaining the oscillations of the regulating member.
  • the exhaust includes an escape wheel driven by the gear train and a member, such as an anchor, located between the escape wheel and the regulating member.
  • the watch movements currently found on the market currently have a regulating organ oscillating at a frequency of 4 Hz and a 20-tooth escapement wheel. It has also been marketed under the brand name Zenith El Primero, a movement whose regulating organ oscillates at a frequency of 5 Hz and whose escape wheel includes, to the applicant's knowledge, 21 teeth.
  • the present invention aims to provide a watch movement that can operate at a high frequency without the aforementioned disadvantages.
  • a watch movement comprising a regulating member having an oscillation frequency f and an escapement for maintaining the oscillations of the regulating member, the escapement comprising an exhaust wheel having N teeth, a movement in which the frequency f is at least equal to about 5 Hz and the ratio between the number of teeth N and the frequency f is substantially equal to 5.
  • the frequency f is preferably at least about 6 Hz, more preferably at least about 8 Hz and more preferably at least about 10 Hz.
  • the frequency of the regulating member is increased without increasing the ratio between the number of teeth N of the escape wheel and the frequency f, ratio which is equal to a usual value.
  • the angular speed of rotation of the escape wheel therefore remains unchanged, allowing the gear train and more generally the entire movement with the exception of the regulating member and the exhaust to remain unchanged.
  • the power reserve is also preserved.
  • the present invention also provides at least two watch movements, one of which comprises a regulating member having an oscillation frequency f1 and an escapement for sustaining oscillations of the regulating member, exhaust comprising an exhaust wheel N1 teeth, the other comprises a regulating member having an oscillation frequency f2 and an exhaust to maintain the oscillations of the regulating member, the exhaust comprising an escape wheel to N2 teeth, and in which the numbers of teeth N1 and N2 are different, the frequencies f1 and f2 are different and the ratio between N1 and f1 is substantially equal to the ratio between N2 and f2.
  • the two movements typically further comprise respective wheels with which the exhaust wheels respectively cooperate.
  • these wheels are substantially identical.
  • the exhaust of each movement further typically comprises an anchor located between the escape wheel and the regulating member.
  • the distance between the centers of rotation of the escape wheel and the anchor is substantially the same in both movements and the distance between the centers of rotation of the anchor and the regulating member is substantially the same. in both movements. In this way, the plates and bridges on which are mounted the different organs can be the same in both movements.
  • the two movements may even be substantially identical except for their escapement and their regulating organ.
  • Said ratios between N1 and f1 and between N2 and f2 are typically substantially equal to 5.
  • at least one of the frequencies f1 and f2 is at least equal to approximately 5 Hz, preferably at least equal to approximately 6 Hz, more preferably at least about 8 Hz, more preferably at least about 10 Hz.
  • tooth means a tooth of the escape wheel having a functional role, that is to say, in the case of an anchor escapement, a tooth which cooperates with the pallets of the anchor.
  • a traditional watch movement 1 comprises in particular a motor spring (not shown) housed in a barrel 2, a gear train 3 driven by the barrel 2, a regulating member of the balance-spring type 4 (of which only the balance is shown) and, the gear train 3 and the sprung balance 4, an exhaust 5.
  • the exhaust 5 comprises an escape wheel 6 and an exhaust pinion 7 which is secured to the wheel 6 and which meshes with a second wheel 8 of the gear train 3 to drive the wheel 6.
  • the exhaust 5 further comprises a member 9, for example an anchor, which cooperates with the escape wheel 6 and with a plate pin 10 secured to the axis of the balance-spring 4 for maintain the oscillations of the sprung balance 4.
  • the respective axes of some of the wheels of the train 3, namely the second wheel 8, a minute wheel and a wheel hours (not shown), are intended to carry the indicators of seconds, minutes and hours s, typically needles, moving over a watch face. All these elements are well known to those skilled in the art and will not be described in more detail.
  • One known way to increase the oscillation frequency of a balance spring is to increase the stiffness of the balance spring and / or to reduce the moment of inertia of the balance.
  • To increase the stiffness of the hairspring it can for example shorten it or increase its section.
  • the decrease of the moment of inertia of the pendulum is obtained for example by lightening the balance and / or decreasing its radius of gyration.
  • the increase in the frequency of the sprung balance is accompanied by an increase in the number of teeth of the escape wheel.
  • Current manufacturing techniques allow the realization of wheels with a large number of teeth.
  • the figure 2 shows an escape wheel 11 and an exhaust anchor 12 forming part of an exhaust according to a first embodiment of the invention.
  • the escape wheel 11 has 50 teeth and the exhaust of which it is part is intended to operate with a sprung balance oscillating at a frequency of 10 Hz (72000 vibrations per hour).
  • the figure 3 shows an escape wheel 13 and an exhaust anchor 14 forming part of an exhaust according to a second embodiment of the invention.
  • the escape wheel 13 has 40 teeth and the exhaust of which it is part is intended to operate with a sprung balance oscillating at a frequency of 8 Hz (57600 vibrations per hour).
  • anchors 12 and 14 illustrated at Figures 2 and 3 may be identical although they cooperate with different exhaust wheels.
  • the ratio between the number of teeth of the escape wheel and the frequency of the spring balance is equal to 5, which is the value that is commonly encountered in the current movements.
  • the angular speed of rotation of the escape wheel is therefore the same as in the usual movements. It follows that a movement including one of the exhausts described above and the balance sprung-balance may have a conventional wheel, for example the wheel 3 illustrated in the figure 1 .
  • the distances from the exhaust are preserved from one exhaust to the other and are equal to usual values.
  • the center distance d3 of the escape wheel 11 and the anchor 12 is equal to the center distance d5 of the escape wheel 13 and the anchor 14 and to the center distance d1 of the usual escape wheel 6 and the usual anchor 9.
  • the center distance d4 of the anchor 12 and corresponding balance is equal to the center distance d6 of the anchor 14 and the corresponding balance and to the spacing d2 of the usual anchor 9 and the usual balance 4. Keeping the same spacings from one exhaust to the other, it facilitates the interchangeability of the exhaust assembly - regulating member in a given movement and is allowed to movements respectively including escapements as described above with the corresponding balance springs to have identical plates and bridges.
  • the escapement according to the invention is a Swiss lever escapement.
  • the present invention could be applied to other types of anchor escapements and more generally to other types of escapement.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Springs (AREA)
  • Gears, Cams (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
EP11000484A 2007-12-27 2007-12-27 Herstellungsverfahren von Uhrwerken, die mit unterschiedlichen Frequenzen funktionieren Active EP2309345B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070025149 EP2075651B1 (de) 2007-12-27 2007-12-27 Uhrwerk, das ein Regulierorgan mit erhöhter Oszillationsfrequenz umfasst

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP07025149.1 Division 2007-12-27

Publications (3)

Publication Number Publication Date
EP2309345A2 true EP2309345A2 (de) 2011-04-13
EP2309345A3 EP2309345A3 (de) 2011-05-04
EP2309345B1 EP2309345B1 (de) 2013-03-13

Family

ID=39731735

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11000484A Active EP2309345B1 (de) 2007-12-27 2007-12-27 Herstellungsverfahren von Uhrwerken, die mit unterschiedlichen Frequenzen funktionieren
EP11000483A Active EP2309344B1 (de) 2007-12-27 2007-12-27 Verfahren zur Veränderung der Oszillationsfrequenz eines Uhrwerks
EP20070025149 Active EP2075651B1 (de) 2007-12-27 2007-12-27 Uhrwerk, das ein Regulierorgan mit erhöhter Oszillationsfrequenz umfasst

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP11000483A Active EP2309344B1 (de) 2007-12-27 2007-12-27 Verfahren zur Veränderung der Oszillationsfrequenz eines Uhrwerks
EP20070025149 Active EP2075651B1 (de) 2007-12-27 2007-12-27 Uhrwerk, das ein Regulierorgan mit erhöhter Oszillationsfrequenz umfasst

Country Status (3)

Country Link
EP (3) EP2309345B1 (de)
DE (1) DE602007013587D1 (de)
HK (3) HK1127647A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109690424A (zh) * 2016-03-14 2019-04-26 Lvmh瑞士制造公司 用于钟表的装置、包括该装置的钟表装置机芯和钟表

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363762B1 (de) 2010-03-04 2017-11-22 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
CH703575B1 (fr) * 2011-03-22 2015-12-15 Lvmh Swiss Mft Sa Ancre d'échappement pour montre-bracelet mécanique et assortiment comportant une telle ancre.
CH705970B1 (fr) * 2012-01-09 2017-09-29 Lvmh Swiss Mft Sa Mécanisme d'horlogerie comprenant un oscillateur vibrant.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH174391A (fr) * 1934-05-22 1935-01-15 Schild Sa A Mouvement de montre ancre, de forme et à seconde.
FR892533A (fr) * 1942-12-03 1944-04-11 Electro App Balancier réglable
CH358036A (fr) * 1956-06-21 1961-10-31 Theurillat Xavier Echappement à ancre à sauts libres pour mouvements d'horlogerie
CH752362A4 (de) * 1962-06-22 1965-11-15
CH1517065A4 (fr) 1965-11-03 1967-04-15 Girard Perregaux Et Cie S A Montre portative
CH1776371A4 (de) * 1971-12-06 1973-10-31
GB1409572A (en) * 1971-12-06 1975-10-08 Theurillat X Anchor escapement for clocks and watches
ATE389902T1 (de) * 2005-06-23 2008-04-15 Suisse Electronique Microtech Uhr

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109690424A (zh) * 2016-03-14 2019-04-26 Lvmh瑞士制造公司 用于钟表的装置、包括该装置的钟表装置机芯和钟表

Also Published As

Publication number Publication date
EP2309345A3 (de) 2011-05-04
EP2075651B1 (de) 2011-03-30
HK1127647A1 (en) 2009-10-02
DE602007013587D1 (de) 2011-05-12
EP2309344A3 (de) 2011-05-04
EP2309345B1 (de) 2013-03-13
EP2075651A1 (de) 2009-07-01
EP2309344A2 (de) 2011-04-13
HK1152118A1 (en) 2012-02-17
HK1151864A1 (en) 2012-02-10
EP2309344B1 (de) 2012-05-09

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