EP2977830A1 - Uhrhemmungsmechanismus mit konstanter Kraft - Google Patents

Uhrhemmungsmechanismus mit konstanter Kraft Download PDF

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Publication number
EP2977830A1
EP2977830A1 EP14178104.7A EP14178104A EP2977830A1 EP 2977830 A1 EP2977830 A1 EP 2977830A1 EP 14178104 A EP14178104 A EP 14178104A EP 2977830 A1 EP2977830 A1 EP 2977830A1
Authority
EP
European Patent Office
Prior art keywords
wheel
toothing
exhaust mechanism
oscillator
arm
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
EP14178104.7A
Other languages
English (en)
French (fr)
Other versions
EP2977830B1 (de
Inventor
Marc Stranczl
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.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox 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
Priority to EP14178104.7A priority Critical patent/EP2977830B1/de
Application filed by Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to RU2017105855A priority patent/RU2688847C2/ru
Priority to CN201580002546.3A priority patent/CN105706005B/zh
Priority to JP2016523980A priority patent/JP6244456B2/ja
Priority to US15/027,627 priority patent/US9804567B2/en
Priority to PCT/EP2015/063816 priority patent/WO2016012166A2/fr
Publication of EP2977830A1 publication Critical patent/EP2977830A1/de
Priority to HK16114157A priority patent/HK1225817B/zh
Application granted granted Critical
Publication of EP2977830B1 publication Critical patent/EP2977830B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B15/10—Escapements with constant impulses for the regulating mechanism
    • 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
    • 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
    • G04B15/12—Adjusting; Restricting the amplitude of the lever or the like

Definitions

  • the invention further relates to a movement comprising, interposed between, a first upstream side a gear train driven by an energy storage device, and, a second downstream side an oscillator, such an exhaust mechanism.
  • the invention also relates to a timepiece comprising such a movement.
  • the invention relates to clock escapement mechanisms.
  • the good chronometric performance of a mechanical watch movement depends on the regularity of the mechanism exhaust system. And, in particular, the regularity of the torque delivered to the exhaust street throughout the disarming or the barrels.
  • the invention proposes a simple mechanism, with a number of very small components, to achieve a constant force escapement efficient, economical, and a limited space.
  • the invention also relates to a movement comprising interposed between, a first upstream side a gear driven by an energy storage device, and a second downstream side an oscillator, such an exhaust mechanism.
  • the invention also relates to a timepiece comprising such a movement, characterized in that it is a watch.
  • the invention proposes a simple mechanism, with a number of very small components, for producing an effective constant force escapement mechanism that is economical and of limited space, making it possible to transmit a constant torque to the oscillator stop. regardless of the state of charge of the energy storage device.
  • the invention is illustrated here in the figures in a particular application, non-limiting, where the oscillator is a pendulum-balance, and where the stopper is an anchor, including a Swiss anchor.
  • the energy storage device is here represented, without limitation, by a cylinder.
  • the invention aims to solve, in this particular application, the problem of the variation of the torque to the escape wheel according to the state of charge of the barrel.
  • the invention is based on the use of a flexible escape wheel, as described in patent documents from the same applicant: CH704147 , CH703464 , EP2455821 , WO2012010408 , incorporated herein by reference.
  • this flexible exhaust wheel is made of a micro-machinable material, or silicon, or quartz or one of their oxides or compounds, or an alloy derived from MEMS technology, or an alloy as obtained by the "LIGA" process, or an at least partially amorphous material.
  • it is made of a combination of some of these materials, the material being a rigid Young modulus material greater than 80000 MPa. The choice of such a material guarantees the reproducibility of the physical phenomena, and therefore the constancy of the value of the transmitted torque.
  • the invention relates to a constant force escapement mechanism 1 for a watch movement 100.
  • This escapement mechanism 1 is arranged to be interposed between, on a first upstream side, a gear train 2 driven by a storage device. 3, in particular a barrel or a set of barrels, and a second downstream side an oscillator 4.
  • the stopper 5 is arranged to cooperate, downstream with such an oscillator 4, and upstream with a first toothing 9 that includes the escape wheel 6.
  • This escapement wheel 6 is a single-piece flexible component, comprising on the one hand a serge 10 carrying the first toothing 9, and on the other hand a pinion 12.
  • This pinion 12 meshes permanently with the input wheel 7.
  • This input wheel 7 is arranged to mesh with the input of such a wheel 2.
  • the serge 10 and the pinion 12 are connected to each other by flexible arms 11, which are arranged to store energy from the train 2, and to restore it according to the position of the trigger rocker 8
  • the monolithic escapement wheel 6 can therefore store energy between its pinion 12 and its serge 10.
  • the trigger rocker 8 stops the input wheel 7.
  • the trigger is triggered by the teeth of the first toothing 9 of the escape wheel 6.
  • this trigger rocker 8 comprises a first arm 13 which is arranged to cooperate with the first toothing 9 of the escape wheel 6, and a second arm 14 which is arranged to cooperate with a second toothing 15 which comprises the input wheel 7 to stop or release the latter.
  • the trigger rocker 8 is arranged to tilt, around a pivoting guide 16 that it comprises, at each passage of at least one tooth of the first toothing 9 of the escape wheel 6. And the pivoting guide 16 is sized to allow passage of a predetermined number of teeth of the second toothing 15 of the input wheel 7.
  • the flexible arms 11 of the escape wheel 6 have stored energy, and the input wheel 7, in particular a second wheel, is stopped by the second arm 14 of the trigger rocker 8.
  • the escape wheel 6 and the stopper 5 must be sized to have a large fall. During this fall, the escape wheel 6 triggers the expansion by releasing the trigger rocker 8, the pendulum plate pin having then completed its pulse.
  • the input wheel 7 then recharges the flexible arms 11 of the escapement wheel 6 which no longer turns, being then stopped by the stopper 5.
  • the trigger rocker 8 is, in a particular variant, mounted on a flexible guide 16.
  • This flexible guide 16 may, if necessary, be dimensioned so as to pass only a predetermined number of teeth of the input wheel 7 The escape wheel 6 is thus reloaded at a precise angle.
  • the trigger is actuated at each passage of a tooth of the first toothing 9 of the escape wheel 6, every two alternations.
  • At least one of the flexible arms 11 comprises an abutment arranged to limit the pivoting amplitude of the input wheel 7.
  • the escape wheel 6 is thus reloaded at a precise angle.
  • each flexible arm 11 comprises such a stop.
  • the input wheel 7 is a second wheel. A particular dimensioning of this second wheel is then desirable, in order to have a compatible number of teeth. It is also possible to have an input wheel 7 cooperating with a second wheel.
  • the second arm 14 of the trigger rocker 8 comprises a toothed sector 17, which is arranged to cooperate with the second toothing 15 of the input wheel 7.
  • toothed sector 17, with small toothing allows adaptation to a conventional second wheel, the input wheel 7 can thus be the usual second wheel, without transformation of the latter.
  • the escapement mechanism 1 comprises a bridge 18 which is integral with the pivoting guide 16 of the trigger rocker 8 and with it.
  • the escapement mechanism 1 comprises a retainer 5 which is integral with the bridge 18 and comprises flexible guide means permitting its pivoting and arranged to limit its pivoting stroke.
  • the escapement mechanism 1 comprises a bridge 18 which is at one and the same time integral with the pivoting guide 16 of the trigger rocker 8 and with it, and with the stopper 5 which comprises flexible guide means permitting its pivoting and arranged to limit its pivoting stroke.
  • the bridge 18 comprises elastic return means 19 which act on said first arm 13 and / or second arm 14 to exert a force or a pushing or pulling torque, according to their relative location with respect to these arms. It will be understood that, in the alternative where the trigger rocker 8 is on a flexible guide 16, this flexible guide is able to effect this force, torque or force, of return. If the trigger rocker 8 pivots on a conventional pivot, it is necessary to add these elastic return means 19, in particular in the form of at least one return spring.
  • the stopper 5 is an anchor, in particular a Swiss anchor.
  • the invention also relates to a clockwork movement 100 comprising, interposed between, a first upstream side a gear train 2 driven by an energy storage device 3, and a second downstream side an oscillator 4, such a exhaust mechanism 1.
  • the oscillator 4 is a pendulum-balance assembly.
  • the oscillator 4 is a tuning fork.
  • the invention also relates to a timepiece 200 comprising such a movement 100.
  • This timepiece 200 is more particularly a watch.
  • the invention provides a simple mechanism that allows maintenance of the oscillator with constant force. It follows that the oscillation maintenance is independent of the state of charge of the cylinder or the storage device of energy used.
  • the mechanism according to the invention is compact, and lends itself well to the transformation and improvement of an existing movement.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Electromechanical Clocks (AREA)
  • Gears, Cams (AREA)
  • Transmission Devices (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP14178104.7A 2014-07-23 2014-07-23 Uhrhemmungsmechanismus mit konstanter Kraft Active EP2977830B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP14178104.7A EP2977830B1 (de) 2014-07-23 2014-07-23 Uhrhemmungsmechanismus mit konstanter Kraft
CN201580002546.3A CN105706005B (zh) 2014-07-23 2015-06-19 恒力擒纵机构
JP2016523980A JP6244456B2 (ja) 2014-07-23 2015-06-19 定力脱進機機構
US15/027,627 US9804567B2 (en) 2014-07-23 2015-06-19 Constant force escapement mechanism
RU2017105855A RU2688847C2 (ru) 2014-07-23 2015-06-19 Спусковой механизм постоянного усилия
PCT/EP2015/063816 WO2016012166A2 (fr) 2014-07-23 2015-06-19 Mecanisme d'echappement a force constante
HK16114157A HK1225817B (zh) 2014-07-23 2016-12-13 恒力擒縱機構

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14178104.7A EP2977830B1 (de) 2014-07-23 2014-07-23 Uhrhemmungsmechanismus mit konstanter Kraft

Publications (2)

Publication Number Publication Date
EP2977830A1 true EP2977830A1 (de) 2016-01-27
EP2977830B1 EP2977830B1 (de) 2017-08-30

Family

ID=51212742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14178104.7A Active EP2977830B1 (de) 2014-07-23 2014-07-23 Uhrhemmungsmechanismus mit konstanter Kraft

Country Status (7)

Country Link
US (1) US9804567B2 (de)
EP (1) EP2977830B1 (de)
JP (1) JP6244456B2 (de)
CN (1) CN105706005B (de)
HK (1) HK1225817B (de)
RU (1) RU2688847C2 (de)
WO (1) WO2016012166A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018115014A3 (fr) * 2016-12-23 2018-10-18 Sa De La Manufacture D'horlogerie Audemars Piguet & Cie Composant monolithique flexible pour pièce d'horlogerie

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH713150A2 (fr) * 2016-11-23 2018-05-31 Eta Sa Mft Horlogere Suisse Mécanisme régulateur à résonateur rotatif à guidage flexible entretenu par un échappement libre à ancre.
EP3901707B1 (de) * 2020-04-23 2024-02-28 ETA SA Manufacture Horlogère Suisse Hemmungsmechanismus einer uhr
EP4080292B1 (de) * 2021-04-23 2023-11-08 Montres Breguet S.A. Uhrwerkmechanismus zur anzeige von mindestens einer einzigen zeitanzeige und uhrwerk mit einem solchen mechanismus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US975959A (en) * 1910-04-15 1910-11-15 John Kangas Driving-train for timepieces.
WO2012010408A1 (fr) 2010-07-19 2012-01-26 Nivarox-Far S.A. Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
CH703464A2 (fr) 2010-07-19 2012-01-31 Nivarox Sa Mécanisme oscillant à pivot élastique.
EP2455821A1 (de) 2010-11-18 2012-05-23 Nivarox-FAR S.A. Energieübertragungrad
CH704147A2 (fr) 2010-11-18 2012-05-31 Nivarox Sa Mobile de transmission d'énergie.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641351A1 (fr) * 1988-12-29 1990-07-06 Alcatel Business Systems Pignon anti-bruit
EP1445669A1 (de) * 2003-02-10 2004-08-11 Richemont International S.A. Konstantkraftvorrichtung für Uhren mit indirekter Sekunde
TWI461865B (zh) * 2006-06-23 2014-11-21 Omega Sa 用於機械式時計機心之擺輪游絲調節系統及具有此系統之時計
JP4849998B2 (ja) * 2006-08-29 2012-01-11 セイコーインスツル株式会社 機械式時計の脱進機
CH705118B1 (fr) * 2007-12-27 2012-12-31 Chopard Technologies Sa Mouvement horloger comportant un organe réglant à fréquence d'oscillation élevée.
EP2085833A1 (de) * 2008-01-31 2009-08-05 CT Time S.A. Modulares Uhrwerk
CH704764A2 (fr) * 2011-03-31 2012-10-15 Cartier Creation Studio Sa Mécanisme d'échappement notamment pour mouvement d'horlogerie.
EP2506092B1 (de) * 2011-03-31 2020-01-08 Cartier International AG Uhrhemmungsmechanismus, insbesondere für Uhrwerk
JP6057659B2 (ja) * 2012-10-18 2017-01-11 セイコーインスツル株式会社 時計用の定トルク機構及び該機構を備えたムーブメント及び機械式時計

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US975959A (en) * 1910-04-15 1910-11-15 John Kangas Driving-train for timepieces.
WO2012010408A1 (fr) 2010-07-19 2012-01-26 Nivarox-Far S.A. Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
CH703464A2 (fr) 2010-07-19 2012-01-31 Nivarox Sa Mécanisme oscillant à pivot élastique.
EP2455821A1 (de) 2010-11-18 2012-05-23 Nivarox-FAR S.A. Energieübertragungrad
CH704147A2 (fr) 2010-11-18 2012-05-31 Nivarox Sa Mobile de transmission d'énergie.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018115014A3 (fr) * 2016-12-23 2018-10-18 Sa De La Manufacture D'horlogerie Audemars Piguet & Cie Composant monolithique flexible pour pièce d'horlogerie
US12055896B2 (en) 2016-12-23 2024-08-06 Manufacture D'horlogerie Audemars Piguet Sa Flexible monolithic component for a timepiece

Also Published As

Publication number Publication date
WO2016012166A2 (fr) 2016-01-28
JP6244456B2 (ja) 2017-12-06
RU2017105855A (ru) 2018-08-27
CN105706005A (zh) 2016-06-22
CN105706005B (zh) 2017-09-12
RU2017105855A3 (de) 2019-04-25
JP2016533492A (ja) 2016-10-27
EP2977830B1 (de) 2017-08-30
US9804567B2 (en) 2017-10-31
WO2016012166A3 (fr) 2016-03-17
HK1225817B (zh) 2017-09-15
RU2688847C2 (ru) 2019-05-22
US20160252881A1 (en) 2016-09-01

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