EP3324246A1 - Schutz eines plattenresonator-mechanismus gegen axiale stosseinwirkungen - Google Patents

Schutz eines plattenresonator-mechanismus gegen axiale stosseinwirkungen Download PDF

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Publication number
EP3324246A1
EP3324246A1 EP16199006.4A EP16199006A EP3324246A1 EP 3324246 A1 EP3324246 A1 EP 3324246A1 EP 16199006 A EP16199006 A EP 16199006A EP 3324246 A1 EP3324246 A1 EP 3324246A1
Authority
EP
European Patent Office
Prior art keywords
resonator mechanism
inertial element
axial abutment
pivot axis
axial
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
EP16199006.4A
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English (en)
French (fr)
Other versions
EP3324246B1 (de
Inventor
Dominique Léchot
Pascal Winkler
Gianni Di Domenico
Jean-Jacques Born
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.)
Swatch Group Research and Development SA
Original Assignee
Swatch Group Research and Development 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
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP16199006.4A priority Critical patent/EP3324246B1/de
Priority to CH01511/16A priority patent/CH713137A2/fr
Priority to US15/730,913 priority patent/US10394190B2/en
Priority to JP2017203230A priority patent/JP6434597B2/ja
Priority to CN201711131959.9A priority patent/CN108073066B/zh
Publication of EP3324246A1 publication Critical patent/EP3324246A1/de
Application granted granted Critical
Publication of EP3324246B1 publication Critical patent/EP3324246B1/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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
    • 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
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings
    • 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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements

Definitions

  • the invention relates to a timepiece resonator mechanism, comprising a structure and at least one inertial element arranged to oscillate in a pivoting movement about a pivot axis, with the center of inertia of said at least one inertial element aligned with said pivoting axis, said at least one inertial element being subjected to return forces exerted by a plurality of elastic blades each fixed, directly or indirectly, at a first end to said structure and fixed, directly or indirectly, at a second end thereof at least one inertial element, each said elastic blade extending in a plane perpendicular to said pivot axis, and being substantially deformable in said plane perpendicular to said pivot axis.
  • the invention also relates to a watch movement comprising at least one such resonator mechanism.
  • the invention also relates to a watch comprising such a watch movement, and / or such a resonator mechanism.
  • the invention relates to the field of clock resonators, and especially those which comprise elastic blades acting as return means for the operation of the oscillator.
  • Shock resistance is a delicate point for most watch oscillators, and especially for cross-wound resonators. In fact, during out-of-plane shocks, the stress experienced by the blades quickly reaches very high values, which reduces the amount of travel the part can travel before yielding.
  • Shock absorbers for timepieces come in many variants. However, their main purpose is to protect the fragile pivots of the axis, and not the elastic elements, as conventionally the spiral spring.
  • the invention proposes to limit the out-of-plane displacement stroke of the blades of a blade resonator, and thus to ensure a better holding of the system.
  • the invention relates to a blade resonator mechanism according to claim 1.
  • the invention also relates to a watch movement comprising at least one such resonator mechanism.
  • the invention also relates to a watch comprising such a watch movement, and / or such a resonator mechanism.
  • the invention relates to a 100 clock resonator mechanism, comprising a structure 1 and at least one inertial element 2 arranged to oscillate in a pivoting movement about a pivot axis D.
  • the center of inertia resulting from all the inertial elements 2 is aligned with the pivot axis D.
  • At least one inertial element 2 is subjected to return forces exerted by a plurality of elastic blades 3 each fixed, directly or indirectly, at a first end 301 to the structure 1 and fixed, directly or indirectly, to a second end 302 to this at least one inertial element 2.
  • Each elastic blade 3 extends in a plane perpendicular to the pivot axis D, and is essentially deformable in this plane perpendicular to the pivot axis D.
  • Each inertial element 2 extends between an elementary lower plane PI and an elementary upper plane PS.
  • the resonator mechanism 100 comprises axial abutment means.
  • These axial abutment means comprise a lower axial abutment 7 and / or an upper axial abutment 8.
  • These axial abutment means are arranged to cooperate in abutment abutment with at least one of the moving components, for the protection of the resonator mechanism 100 with blades. , and in particular elastic blades 3 which it comprises, against axial shocks in the direction of the pivot axis D.
  • these axial abutment means comprise a lower axial abutment 7 extending in the immediate vicinity of the elementary lower plane PI of a particular inertial element 2 and arranged to limit the off-plane displacement of this particular inertial element 2, and / or an upper axial stop 8 extending in the immediate vicinity of the elementary upper plane PS of such a particular inertial element 2, and arranged to limit the out-of-plane displacement of this particular inertial element 2, by direct contact with this inertial element 2.
  • These Specific axial abutments, arranged for direct contact with the inertial element 2 will in particular hereinafter referred to respectively 73 and 83.
  • the axial abutment means of the invention are of preferably arranged to cooperate with rigid elements, such as inertial elements or shafts.
  • the resonator mechanism 100 comprises, on either side of the same inertial element 2, such a lower axial abutment 7 and such an upper axial abutment 8.
  • the lower axial abutment 7 and / or the upper axial abutment 8 comprises a lower flat surface 17, respectively upper 18, perpendicular to the pivot axis D, and forming an abutment surface cooperating with the inertial element. 2 concerned in case of shock or the like.
  • the resonator mechanism 100 comprises a plurality of such inertial elements 2, which extend between a global lower plane PI and a global upper plane PS.
  • the resonator mechanism 100 comprises, on either side of the overall lower plane PI and of the overall upper plane PS, at least one lower axial abutment 7 and at least one upper axial abutment 8, each arranged to limit the movement out. plane of the closest inertial element 2, for the protection of the resonator mechanism 100 with blades against axial shocks, according to the direction of the pivot axis D.
  • the resonator mechanism 100 comprises a plurality of inertial elements 2 which extend over several parallel levels. More particularly, the resonator mechanism 100 comprises at least one intermediate axial stop, which is arranged between two such neighboring levels of inertial elements 2. More particularly, at least one intermediate axial abutment is arranged in each gap between two such levels.
  • the resonator mechanism 100 comprises a plurality of elastic blade levels 3, which all extend between two extreme levels, upper and lower, of inertial elements 2 which protect these elastic blades 3.
  • a shaft 4 carries all or part of the axial abutment means.
  • This shaft 4 is aligned on the pivot axis D, and extends along this axis D.
  • at least one elastic blade 3 comprises a recess, or a clearance, or an eye 6 formed around the pivot axis D, and without contact with the shaft 4.
  • this shaft 4 comprises at least one lower axial abutment 7 or an upper axial abutment 8. More particularly, this shaft 4 comprises at least one lower axial abutment 7 and at least one upper axial abutment 8.
  • each elastic blade 3 comprises such a recess, or such a clearance, or such an eye 6, and the shaft 4 passes through all the blade levels 3.
  • the shaft 4 can also comprise at least one intermediate stop, when the resonator mechanism 100 comprises inertial elements 2 distributed on parallel and distant levels, between which two by two can take place such intermediate axial stop.
  • this shaft 4 is fixed on the structure 1, which may itself comprise at least one axial abutment surface.
  • the Figures 1 and 2 illustrate this first embodiment.
  • the resonator mechanism 100 with elastic blades comprises two parallel levels of elastic blades, upper 31 and lower 32. These blades 31 and 32 respectively extend in directions D1 and D2, which intersect, in projection on a plane parallel to these two levels, at a virtual pivot axis D around which oscillates an inertial element 2 which is suspended and recalled by these resilient blades 31 and 32 relative to a fixed structure 1.
  • the resonator mechanism 100 comprises axial abutment means for indirectly protect the blades 31 and 32 in the event of an impact, which are illustrated without limitation in the form of two discs centered on the pivot axis D: an upper disc of small diameter, in particular but not limited to transparent and then coupled with an inertial element 2 also having a transparent axial portion, to check the state of the blades, constituting an upper axial stop 8, and arranged p to limit the frosting of the inertial element 2 of the upper side, and a lower disk of larger diameter, constituting a lower axial abutment 7 and arranged to limit the frost of the inertial element 2 of a lower side opposite to this upper side.
  • the blades 31 and 32 each have an eye 6, at the pivot axis D, to pass a shaft 4, which is here maintained on the fixed structure, and which carries the upper disk and the lower disk.
  • this shaft 4 is fixed on an inertial element 2 of the resonator mechanism 100, and the axial abutment means that comprises this shaft 4 are arranged to cooperate in abutment abutment with complementary abutment surfaces that the structure comprises. 1. More in particular, the axial abutment means comprise an upper end surface 48, and a lower end surface 47, arranged to cooperate respectively with an upper complementary surface 18, and a lower complementary surface 17, of the structure 1.
  • the Figures 3 and 4 illustrate this second embodiment.
  • the resonator mechanism 100 has a single level of resilient blades 3, arranged in the form of RCC pivots arranged head to tail, the directions D1 and D2 along which these blades 3 extend intersect at the virtual pivot axis d.
  • an inertial element 2 which is suspended and recalled by these elastic blades 3 with respect to the fixed structure 1.
  • the inertial element 2 carries a shaft 4 oriented on the pivot axis D, and this shaft comprises, at its two ends free, upper and lower, upper end surfaces 48, and lower 47 respectively arranged to cooperate with upper 18 and lower 17 complementary surfaces of the structure 1.
  • the inertial element 2 further comprises a other upper axial stop 83 usable during assembly for adjusting the distance between the inertial element and the elastic blades 3.
  • these upper end surfaces 48, upper upper complementary surface 18, lower end 47, and lower complementary surface 17 are surfaces of revolution about the pivot axis D, and of complementary profile two by two: male and female cylinders , cones male and female, which limits the radial stroke, and also allows a refocusing on this pivot axis D ..
  • the resonator mechanism 100 may also comprise a first shaft 4 secured to the structure 1, and a second shaft 4 integral with an inertial element 2.
  • the elastic blades 3 are straight. More particularly, the directions D1, D2, along which these elastic strips 3 extend, are, in projection on a plane perpendicular to the pivot axis D, crossed at the pivot axis D.
  • At least one lower axial abutment 7 or an upper axial abutment 8 is in sapphire or other transparent material.
  • the resonator mechanism 100 comprises complementary axial stop means arranged to cooperate in abutting contact with each inertial element 2, arranged to limit off-plane movement of the closest inertial element 2. More particularly, this resonator mechanism 100 comprises, on either side of the set of inertial elements 2 that it comprises, at least one lower axial stop 7 and at least one upper axial stop 8, each arranged to limit the displacement. out of the plane of the closest inertial element 2.
  • the configuration of the figure 3 relates to a resonator mechanism 100 of the double pivot RCC type, with blades constituting ves arranged head to tail, but other geometries flexible leaf pivots leaving the free axis area also allow the implementation of the invention , like the configuration of the figure 1 with superimposed blades, which, in projection on a plane parallel to theirs, intersect at the pivot axis D.
  • the configurations of blade resonators often allow the clearance of the area around the pivot axis, which allows the easy addition of a shaft 4 passing through the axis D virtual pivoting blades.
  • the space left free by the configuration of this double pivot RCC allows to add such a shaft 4, which comprises the axial abutment means.
  • the shaft is integral with an inertial element 2.
  • This element is generally attached to a monolithic component made of silicon or the like, which comprises the elastic blades 3.
  • the variant of the figure 4 comprises lower stops 170 and upper 180, respectively carrying an upper complementary surface 18, and a lower complementary surface 17, which are driven into the structure 1, for example in a bridge and a plate, so as to make possible a fine adjustment of the distance J between the stop and the shaft, preferably between 20 and 70 microns.
  • these stops in one piece with the support of the resonator (platinum and / or bridge) if this component is manufactured accurately.
  • a fine adjustment system such as a screwdriver or the like.
  • the material of these stops may be metal or an elastomer to vary the shock absorption.
  • this mechanical interaction of stops with the inertial element or a shaft can be completed with the addition of a magnetic interaction between the elements which are arranged to abut, for example the faces 18 and 48, respectively 17 and 47, of Figures 5 to 7 .
  • This magnetic interaction then constitutes a damping cushion.
  • a contact established on a small contact radius (when the stop is close to the axis of rotation) is favorable from the point of view of the friction during the abutments on the stop, also the variants Illustrated comprise stops closest to the pivot axis D. It is of course possible to place stops on a larger radius, for example on the serge of an inertial arm, or other.
  • the figure 8 illustrates the superposition, in the same resonator, of several levels of elastic blades 3, each level being associated with an inertial element 2, or at least at a particular level of an inertial element 2.
  • an element Inertia 2 cooperates with each level of elastic blades 3, and a single shaft 4 links the different inertial elements, and provides the axial abutment means for the entire resonator mechanism 100.
  • this shaft 4 has two shoulders, of which one constitutes a lower axial abutment 73 of distance adjustment, during assembly, with the upper elastic blades 32, and similarly the other constitutes an upper axial abutment 83 of distance adjustment with the lower elastic blades 32 .
  • the invention also relates to a watch movement 200 comprising at least one such resonator mechanism 100.
  • the invention also concerns a watch 300 comprising such a movement 200, and / or such a resonator mechanism 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
EP16199006.4A 2016-11-16 2016-11-16 Schutz eines plattenresonator-mechanismus gegen axiale stosseinwirkungen Active EP3324246B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16199006.4A EP3324246B1 (de) 2016-11-16 2016-11-16 Schutz eines plattenresonator-mechanismus gegen axiale stosseinwirkungen
CH01511/16A CH713137A2 (fr) 2016-11-16 2016-11-16 Protection d'un mécanisme résonateur à lames contre les chocs axiaux.
US15/730,913 US10394190B2 (en) 2016-11-16 2017-10-12 Protection of a blade resonator mechanism against axial shocks
JP2017203230A JP6434597B2 (ja) 2016-11-16 2017-10-20 軸方向の衝撃に対するブレード式共振機構の保護
CN201711131959.9A CN108073066B (zh) 2016-11-16 2017-11-15 钟表谐振器机构及包括该机构的钟表机芯和手表

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16199006.4A EP3324246B1 (de) 2016-11-16 2016-11-16 Schutz eines plattenresonator-mechanismus gegen axiale stosseinwirkungen

Publications (2)

Publication Number Publication Date
EP3324246A1 true EP3324246A1 (de) 2018-05-23
EP3324246B1 EP3324246B1 (de) 2019-11-06

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EP16199006.4A Active EP3324246B1 (de) 2016-11-16 2016-11-16 Schutz eines plattenresonator-mechanismus gegen axiale stosseinwirkungen

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US (1) US10394190B2 (de)
EP (1) EP3324246B1 (de)
JP (1) JP6434597B2 (de)
CN (1) CN108073066B (de)
CH (1) CH713137A2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3719587A1 (de) 2019-04-04 2020-10-07 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Stossdämpfungsvorrichtung und mechanischer oszillator eines uhrwerks mit flexibler führung, der über eine solche stossdämpfungsvorrichtung verfügt
EP3839651A1 (de) 2019-12-19 2021-06-23 Patek Philippe SA Genève Mechanischer oszillator einer uhr mit flexibler führung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3561606B1 (de) * 2018-04-27 2022-01-26 The Swatch Group Research and Development Ltd Stossdämpfungsschutz eines resonators mit rcc-schwenkfedern
EP3572885B1 (de) * 2018-05-25 2022-04-20 ETA SA Manufacture Horlogère Suisse Mechanischer oszillator eines isochronen uhrwerks in jeder position
EP3771947A1 (de) * 2019-07-29 2021-02-03 ETA SA Manufacture Horlogère Suisse Führungsvorrichtung zum schwenken und resonatormechanismus eines uhrwerks für eine schwenkbare masse
EP3971655A1 (de) * 2020-09-18 2022-03-23 ETA SA Manufacture Horlogère Suisse Stossdämpfungsschutz mit anschlag eines resonatormechanismus mit flexibler drehführung

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EP3035127A1 (de) * 2014-12-18 2016-06-22 The Swatch Group Research and Development Ltd. Stimmgabeloszillator einer stimmgabelgesteuerten Uhr
EP3054357A1 (de) * 2015-02-03 2016-08-10 ETA SA Manufacture Horlogère Suisse Oszillatormechanismus für Uhr
WO2017055987A1 (fr) * 2015-09-29 2017-04-06 Patek Philippe Sa Geneve Composant mécanique à guidage flexible, notamment pour mouvement horloger

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CH452443A (fr) * 1964-07-10 1968-05-31 Movado Montres Oscillateur pour pièces d'horlogerie
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JPS544358B2 (de) * 1974-03-28 1979-03-06
CH701421B1 (fr) * 2009-07-10 2014-11-28 Manuf Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle Sa Oscillateur mécanique.
EP2469351A1 (de) * 2010-12-22 2012-06-27 Nivarox-FAR S.A. Zusammenbau eines Teils, das keinen Plastikbereich enthält
JP2015152402A (ja) * 2014-02-13 2015-08-24 セイコーインスツル株式会社 磁気軸受構造、ムーブメントおよび時計
EP2911012B1 (de) * 2014-02-20 2020-07-22 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oszillator einer Uhr
EP3035126B1 (de) * 2014-12-18 2017-12-13 The Swatch Group Research and Development Ltd. Resonator einer Uhr mit sich kreuzenden Blättern
US10437597B2 (en) * 2015-09-09 2019-10-08 International Business Machines Corporation Silent mode and resource reassignment in branch prediction logic
CN108139712B (zh) * 2015-10-23 2020-10-13 里奇蒙特国际股份有限公司 用于机械钟表机芯的振荡器
CH712105A2 (fr) * 2016-02-10 2017-08-15 Swatch Group Res & Dev Ltd Mécanisme résonateur d'horlogerie.
EP3324247B1 (de) * 2016-11-16 2019-11-27 The Swatch Group Research and Development Ltd Schutz der platten eines resonators einer mechanischen armbanduhr

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3035127A1 (de) * 2014-12-18 2016-06-22 The Swatch Group Research and Development Ltd. Stimmgabeloszillator einer stimmgabelgesteuerten Uhr
EP3054357A1 (de) * 2015-02-03 2016-08-10 ETA SA Manufacture Horlogère Suisse Oszillatormechanismus für Uhr
WO2017055987A1 (fr) * 2015-09-29 2017-04-06 Patek Philippe Sa Geneve Composant mécanique à guidage flexible, notamment pour mouvement horloger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3719587A1 (de) 2019-04-04 2020-10-07 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Stossdämpfungsvorrichtung und mechanischer oszillator eines uhrwerks mit flexibler führung, der über eine solche stossdämpfungsvorrichtung verfügt
CH716041A1 (fr) * 2019-04-04 2020-10-15 Csem Ct Suisse Delectronique Microtechnique Sa Rech Developpement Dispositif antichoc et oscillateur mécanique horloger à guidage flexible disposant d'un tel dispositif antichoc.
EP3839651A1 (de) 2019-12-19 2021-06-23 Patek Philippe SA Genève Mechanischer oszillator einer uhr mit flexibler führung

Also Published As

Publication number Publication date
US20180136607A1 (en) 2018-05-17
CN108073066B (zh) 2019-11-15
US10394190B2 (en) 2019-08-27
CH713137A2 (fr) 2018-05-31
EP3324246B1 (de) 2019-11-06
CN108073066A (zh) 2018-05-25
JP2018081087A (ja) 2018-05-24
JP6434597B2 (ja) 2018-12-05

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