EP3485334B1 - Verfahren zur gangeinstellung einer uhr - Google Patents

Verfahren zur gangeinstellung einer uhr Download PDF

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Publication number
EP3485334B1
EP3485334B1 EP17729143.2A EP17729143A EP3485334B1 EP 3485334 B1 EP3485334 B1 EP 3485334B1 EP 17729143 A EP17729143 A EP 17729143A EP 3485334 B1 EP3485334 B1 EP 3485334B1
Authority
EP
European Patent Office
Prior art keywords
balance
rate
timepiece
correction value
inertia
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
Application number
EP17729143.2A
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English (en)
French (fr)
Other versions
EP3485334A1 (de
Inventor
Thierry Conus
Pascal Winkler
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Publication of EP3485334A1 publication Critical patent/EP3485334A1/de
Application granted granted Critical
Publication of EP3485334B1 publication Critical patent/EP3485334B1/de
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1271—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork)
    • G04D7/1285—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork) whereby the adjustment device works on the mainspring
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
    • G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
    • G04D7/085—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing by removing material from the balance wheel itself
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
    • G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
    • G04D7/088—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing by loading the balance wheel itself with material
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1264—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for complete clockworks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1271—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork)
    • G04D7/1292—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork) whereby the adjustment device works on the balance wheel

Definitions

  • the invention relates to a method for adjusting the rate of a timepiece and, more particularly, to adjusting a horological movement provided with a resonator of the balance-spring type in order to guarantee better rate at the time. timepiece.
  • the document EP3 118 693 discloses a method for measuring the chronometry of a completely nested movement with a successive step of correcting the inertia of the balance by rotating a balancing weight controlled from the outside of the watch.
  • the aim of the present invention is to remedy all or part of the drawbacks mentioned above by proposing a new method for adjusting the rate of a timepiece.
  • the invention relates to a method for adjusting a timepiece according to claim 1 attached.
  • the adjustment is not carried out only on the bare movement, that is to say when it is not yet nested, but that an additional adjustment advantageously according to the invention is carried out at the end of manufacture of the timepiece allowing fine adjustment of the timepiece which takes into account the rate variations induced at the time of casing such as, for example, stresses generated on the movement by the casing and / or aerodynamic modifications induced by the closed environment of the box.
  • the invention relates to a method for adjusting the rate of a timepiece.
  • the invention relates more particularly to the adjustment of a watch movement provided with a resonator of the balance-spring type.
  • Such a resonator of the balance-spring type generally comprises a balance forming an inertia and a balance-spring forming an elasticity, which are mounted on the same axis.
  • the method 1 according to the invention comprises a first step 3 intended to mount the movement to be adjusted in its future timepiece case.
  • the process begins with the casing of the movement provided with a balance-spring resonator.
  • a second step 5 is intended to measure the rate of the timepiece, that is to say the nested movement.
  • the rate is measured without contact with the balance-spring resonator.
  • the movement being already nested the access to the resonator is particularly narrow.
  • the measurement of the rate of the timepiece can thus be carried out, for example, in optical or acoustic form.
  • This second step 5 is important for two reasons. Thus, on the one hand, it makes it possible to compare the measured rate with a desired rate. On the other hand, it also makes it possible to know the beat of the balance in order to be able to synchronize it with the projection of material in order to deposit the material precisely on the balance.
  • Method 1 continues with a third step 7 intended to determine the correction value to be applied to the inertia of the balance in order to obtain a desired rate.
  • the correction value is determined by comparing the measured rate and the desired frequency for the resonator in particular from equations (1) to (3) above .
  • the adjustment according to the invention only allows the increase in the moment of inertia I of the balance. It is therefore understood that the nested movement is preferably provided so that it has a forward advance which will be corrected during the last step 9.
  • the correction value therefore corresponds to a symmetrical distribution of at least two masses of the material on the balance in order to modify the inertia of the balance without modifying its center of mass. It is understood that the correction value will be distributed, in a balanced manner, according to the number of deposits desired. By way of non-limiting example, if the deposit is made on the rim of the balance, the correction value will be divided by the number of deposits desired and each deposit will be distributed on the rim at an angle ⁇ equal to 360 ° divided by the number of deposits desired.
  • the correction value is determined by comparing, on the one hand, the measured rate and, on the other hand, the unbalance and the frequency desired for the resonator in particular from equations (1) to (3) above. It is therefore understood that in this variant, more parameters are taken into account. It is also immediate that the second step 5 can then take into account, in addition, the amplitude of the balance in at least the 4 usual vertical control positions in order to be able to balance the balance. In fact, the unbalance, via gravity, causes a torque which is added to the return torque of the hairspring and consequently causes a travel error.
  • the adjustment according to the invention only allows the increase in the moment of inertia I of the balance. It is therefore understood that the nested movement is preferably provided so that it has a forward advance which will be corrected during the last step 9.
  • the correction value corresponds to the asymmetric distribution of at least one mass of material on the balance in order to modify the inertia of the balance and its center of mass. It will be understood that the correction value will be distributed so as to balance the balance or form an unbalance on the balance according to the number of deposits desired. By way of non-limiting example, if the deposit is made on the rim of the balance, the correction value will be divided by the number of deposits desired. Then, a weighting is carried out according to the correction of the desired unbalance. It is therefore understood that the weighting could consist in asymmetrically depositing the material, that is to say a distribution of the greater number of deposits in a determined sector of the balance and / or at least one deposit with a greater mass in a determined sector of the balance.
  • the method 1 ends with the fourth step 9 intended to modify, by adding a material to the balance, the inertia of the balance according to said correction value.
  • Such a step 9 is preferably carried out by adding material by means of a phase of projecting the material onto the balance. This step 9 is performed by placing the nested movement without the case back or without the entire case back.
  • This projection phase can advantageously be carried out using an Aerosol Jet printer from the company Optomec which allows very precise projection with a very low volume of material.
  • the material deposited on the balance may include an adhesive, a paint or a metal suspension.
  • the material projection phase is followed by a solidification phase of the projected material.
  • This second phase can, depending on the material used, consist in evaporating the solvent, heat-hardening the material or crosslinking the material.
  • a polymer is deposited on the balance during the first phase and then is crosslinked during the second phase by means of ultra-violet radiation, which makes it possible to avoid as much as possible that pollution is accidentally introduced into movement.
  • Step 9 can be carried out statically (motionless balance) or dynamically (movement in operation).
  • the second step 5 is important in order to know the beat of the balance and, possibly, according to the control positions, in order to be able to synchronize the projection of material for precisely deposit the material on the balance.
  • step 9 according to the first embodiment consisted in dividing the correction value according to four masses of material 15 1 , 15 2 , 15 3 , 15 4 identical and distributed every 90 ° on the rim 13 of the balance 11 in order to fine-tune the timepiece.
  • the balance 21 could include recesses intended to receive the material projected during step 9 and thus block any splashing.
  • step 9 consisted in dividing the correction value according to at least two identical masses of material 25 2 , 25 4 received in the recesses 24 2 , 24 4 of the rim 23 of the balance 21 in order to finely adjust the part d watchmaking.
  • the present invention is not limited to the example illustrated but is susceptible of various variants and modifications which will appear to those skilled in the art.
  • the nested movement if it includes an automatic winding mechanism, could be tilted so that the oscillating weight does not hide the balance.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Claims (8)

  1. Verfahren (1) zur Einstellung eines Uhrmachereiteils, umfassend folgende Schritte:
    - Einschalen (3), in ein Gehäuse des Uhrmachereiteils ohne einen Gehäuseboden oder ohne die Gesamtheit eines Gehäusebodens, eines Werks, das mit einem Unruh-Spiralen-Resonator ausgestattet ist;
    - Messen (5) des Gangs des Uhrmachereiteils;
    - Bestimmen (7) des Korrekturwerts, der auf die Trägheit der Unruh (11, 21) anzuwenden ist, um einen gewünschten Gang zu erhalten;
    - Ändern (9), durch Hinzufügen einer Materie (151, 152, 153, 154, 252, 254) auf der Unruh (11, 21), der Trägheit der Unruh (11, 21) gemäß dem Korrekturwert, wobei das Werk eingeschalt ohne den Gehäuseboden oder ohne die Gesamtheit eines Gehäusebodens eingesetzt wird.
  2. Verfahren (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das Messen des Gangs ohne Kontakt mit dem Unruh-Spiralen-Resonator ausgeführt wird.
  3. Verfahren (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass das Messen des Gangs in optischer oder akustischer Form ausgeführt wird.
  4. Verfahren (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Korrekturwert der symmetrischen Verteilung mindestens zweier Massen der Materie (151, 152, 153, 154, 252, 254) auf der Unruh entspricht, um die Trägheit der Unruh (11, 21) zu ändern, ohne ihren Massenmittelpunkt zu ändern.
  5. Verfahren (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Korrekturwert der asymmetrischen Verteilung mindestens einer Masse der Materie (151, 152, 153, 154, 252, 254) auf der Unruh (11, 21) entspricht, um die Trägheit der Unruh (11, 21) und ihren Massenmittelpunkt zu ändern.
  6. Verfahren (1) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Hinzufügen von Materie (151, 152, 153, 154, 252, 254) durch eine Phase des Aufspritzens der Materie (151, 152, 153, 154, 252, 254) auf der Unruh (11, 21) erfolgt.
  7. Verfahren (1) nach dem vorstehenden Anspruch, dadurch gekennzeichnet, dass die Materie (151, 152, 153, 154, 252, 254) einen Klebstoff, einen Anstrich oder eine Metallsuspension umfasst.
  8. Verfahren (1) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Phase des Aufspritzens von Materie (151, 152, 153, 154, 252, 254) von einer Phase des Verfestigens der aufgespritzten Materie (151, 152, 153, 154, 252, 254) gefolgt ist.
EP17729143.2A 2016-07-18 2017-06-13 Verfahren zur gangeinstellung einer uhr Active EP3485334B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16179847.5A EP3273312A1 (de) 2016-07-18 2016-07-18 Verfahren zur gangeinstellung einer uhr
PCT/EP2017/064426 WO2018015071A1 (fr) 2016-07-18 2017-06-13 Procede de reglage de la marche d'une piece d'horlogerie

Publications (2)

Publication Number Publication Date
EP3485334A1 EP3485334A1 (de) 2019-05-22
EP3485334B1 true EP3485334B1 (de) 2020-11-18

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Application Number Title Priority Date Filing Date
EP16179847.5A Withdrawn EP3273312A1 (de) 2016-07-18 2016-07-18 Verfahren zur gangeinstellung einer uhr
EP17729143.2A Active EP3485334B1 (de) 2016-07-18 2017-06-13 Verfahren zur gangeinstellung einer uhr

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16179847.5A Withdrawn EP3273312A1 (de) 2016-07-18 2016-07-18 Verfahren zur gangeinstellung einer uhr

Country Status (5)

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US (1) US11054791B2 (de)
EP (2) EP3273312A1 (de)
JP (1) JP6672523B2 (de)
CN (1) CN109643083B (de)
WO (1) WO2018015071A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3647883A1 (de) * 2018-11-05 2020-05-06 CSEM Centre Suisse D'electronique Et De Microtechnique SA Unruh einer uhr

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3118693A1 (de) * 2015-07-16 2017-01-18 The Swatch Group Research and Development Ltd. Einstellmechanismus des gangs eines oszillators einer uhr

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454983A (en) * 1944-10-27 1948-11-30 Tessie Weinberger Stroboscopic apparatus for calibrating time indicating devices
CH690874A5 (de) * 1996-05-10 2001-02-15 Witschi Electronic Ag Verfahren zum dynamischen Auswuchten und Abgleichen eines mechanischen Schwingsystem.
CH691992A5 (fr) 1997-07-28 2001-12-14 Femto Procédé pour mesurer un angle que parcourt le balancier d'une montre mécanique et son amplitude et dispositif pour sa mise en oeuvre.
CN1154895C (zh) * 1999-12-24 2004-06-23 精工电子有限公司 机械时计的日差调整方法
CH704693B1 (fr) * 2010-07-16 2015-08-14 Eta Sa Manufacture Horlogère Suisse Procédé d'ajustement de fréquence d'oscillation, et/ou d'ajustement d'inertie, et/ou d'équilibrage d'un composant mobile de mouvement d'horlogerie, ou d'un ensemble balancier-spiral d'horlogerie.
EP2455825B1 (de) * 2010-11-18 2016-08-17 Nivarox-FAR S.A. Verfahren zur Paarung und Angleichung einer Untereinheit einer Uhr
EP2728423A1 (de) * 2012-11-06 2014-05-07 Nivarox-FAR S.A. Spiralunruh-Einheit für Uhrwerk
JP2016151443A (ja) * 2015-02-16 2016-08-22 セイコーインスツル株式会社 撮像装置、撮像方法、及びプログラム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3118693A1 (de) * 2015-07-16 2017-01-18 The Swatch Group Research and Development Ltd. Einstellmechanismus des gangs eines oszillators einer uhr

Also Published As

Publication number Publication date
EP3485334A1 (de) 2019-05-22
JP6672523B2 (ja) 2020-03-25
CN109643083B (zh) 2021-11-09
WO2018015071A1 (fr) 2018-01-25
US11054791B2 (en) 2021-07-06
EP3273312A1 (de) 2018-01-24
CN109643083A (zh) 2019-04-16
JP2019526047A (ja) 2019-09-12
US20190302700A1 (en) 2019-10-03

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