EP4012506A1 - Resonatormechanismus eines uhrwerks, der mit einem verschieberahmen ausgestattet ist - Google Patents

Resonatormechanismus eines uhrwerks, der mit einem verschieberahmen ausgestattet ist Download PDF

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Publication number
EP4012506A1
EP4012506A1 EP20213737.8A EP20213737A EP4012506A1 EP 4012506 A1 EP4012506 A1 EP 4012506A1 EP 20213737 A EP20213737 A EP 20213737A EP 4012506 A1 EP4012506 A1 EP 4012506A1
Authority
EP
European Patent Office
Prior art keywords
translation table
blades
flexible
flexible guide
resonator mechanism
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.)
Pending
Application number
EP20213737.8A
Other languages
English (en)
French (fr)
Inventor
Mohammad Hussein Kahrobaiyan
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 EP20213737.8A priority Critical patent/EP4012506A1/de
Priority to US17/525,329 priority patent/US20220187768A1/en
Priority to JP2021187586A priority patent/JP7254147B2/ja
Priority to CN202111523869.0A priority patent/CN114624982A/zh
Publication of EP4012506A1 publication Critical patent/EP4012506A1/de
Pending 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
    • G04B17/04—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
    • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a 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
    • G04B17/10—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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • 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
    • G04B33/00—Calibers

Definitions

  • the invention relates to a clockwork resonator mechanism, the mechanism being provided with a translation table.
  • the balance-spring constitutes the time base of the watch. It is also called resonator.
  • an inertial element To constitute a mechanical resonator, an inertial element, a guide and an elastic return element are required.
  • a spiral spring acts as an elastic return element for the inertial element that constitutes a balance. This balance wheel is guided in rotation by pivots, which rotate in smooth ruby bearings.
  • the request US202003805 suggests adding an unbalance between the center of mass and the center of rotation along the main axis of symmetry. But the unbalance weighs down the balance wheel, which induces adjustment problems and loss of energy.
  • the object of the present invention is to overcome all or part of the aforementioned drawbacks by proposing a mechanical clockwork resonator that is less sensitive to the direction of gravity.
  • the invention relates to a rotary resonator mechanism comprising an oscillating mass, a flexible guide comprising at least two flexible blades connecting an immobile support to the oscillating mass, the resonator mechanism extending substantially in the same plane to allow the oscillating mass to perform a rotary movement around a virtual pivot, the flexible guide extending along a main axis of symmetry.
  • the invention is remarkable in that the mechanism comprises a translation table arranged in series between the flexible guide and the mass oscillating, the translation table being joined to the flexible blades and/or to the oscillating mass.
  • the connection between the flexible guide and the pendulum is more flexible. Depending on the orientation of the translation table, this flexibility will modify the operation of the resonator mechanism.
  • the rate is increased in a particular direction of the mechanism with respect to gravity if the translation table adds flexibility in this direction, and the rate is decreased in a second direction perpendicular to the first.
  • the translation table makes it possible to bring the center of mass closer to or further away from the center of rotation of the pendulum under the effect of gravity. Consequently, the effect of gravity on the movement of the pendulum is compensated by rectifying the course of the resonator mechanism in a particular direction with respect to gravity.
  • the translation table can serve as shock protection.
  • the translation table protects the flexible guide against a risk of breakage following a shock.
  • the translation table is arranged to allow movement along the main axis of symmetry of the flexible guide in the rest position of the mechanism.
  • the translation table is arranged to allow movement in a direction substantially perpendicular to the main axis of symmetry of the flexible guide in the rest position of the mechanism.
  • the translation table comprises at least two secondary flexible blades and a rigid part, the secondary flexible blades being joined by one end to the rigid part, and by another end to the rocker arm, the blades of the flexible guide being connected to the rigid part of the translation table.
  • the secondary flexible blades are substantially parallel and arranged in different directions.
  • the two blades of the flexible guide are crossed.
  • the mechanism comprises a second translation table arranged in series between the first translation table and the flexible guide.
  • the second translation table comprises at least two tertiary flexible blades and a second rigid part, the tertiary flexible blades being joined by one end to the rigid part of the first translation table, and by another end to the second rigid part, the two blades of the flexible guide being connected to the second rigid part of the second translation table.
  • the invention also relates to a watch movement comprising such a resonator mechanism.
  • the figures 1 and 2 show a schematic representation of a first embodiment of a rotary resonator mechanism 1 for a clock movement.
  • the resonator mechanism 1 extends substantially in one plane and comprises an oscillating weight 2.
  • the oscillating weight 2 is for example an annular balance usually used in watchmaking.
  • the resonator mechanism 1 further comprises a flexible guide to allow the oscillating mass 2 to perform a rotary movement around a center of rotation 12.
  • the flexible guide comprises at least two flexible blades 4 connected to the stationary support 3.
  • the guide flexible extends along a main axis of symmetry 14 along which the flexible guide is in the position of equilibrium when it is in the rest position.
  • the two blades 4 are crossed, one end of each blade 4 being joined to the immobile support 3.
  • the blades 4 intersect on the main axis 14 of symmetry when the mechanism is in the rest position.
  • the flexible guide allows the oscillating mass 2 to perform a reciprocating rotary movement in the plane of the oscillating mechanism.
  • the figure 2 shows the mechanism in operation, the blades 4 of the flexible guide being curved so that the pendulum 2 can move.
  • the mechanism comprises a translation table 5 arranged in series between the flexible guide and the oscillating mass 2, the translation table 5 being joined on the one hand to the two flexible blades 4 of the guide, and on the other hand to the oscillating mass 2, here to the balance.
  • the translation table 5 comprises at least one, here two, secondary flexible blades 7 and a rigid part 6, the secondary flexible blades 7 being joined by one end to the rigid part 6, and by another end to the rocker arm 2, the blades 4 of the flexible guide being connected to the rigid part 6 of the translation table 5.
  • the secondary flexible blades 7 are substantially parallel and arranged in different directions.
  • the rigid part 6 comprises a body in the shape of an elbow, the rigid part 6 comprising a segment 11 substantially parallel to the main axis of symmetry 14 in the rest position of the mechanism, as well as a segment 9 substantially perpendicular to the axis of main symmetry 14 in the rest position of the mechanism 1.
  • the secondary blades 7 are joined to the segment 11 substantially parallel to the inside of the elbow, and the blades 4 of the flexible guide 1 are joined to the segment 9 substantially perpendicular to the outside of the elbow .
  • the balance comprises a lug 8 extending towards the inside of the ring in the plane of the balance.
  • the lug 8 allows the secondary flexible strips 7 to be attached to the ring in a position substantially perpendicular to the flexible guide in the rest position of the mechanism 1.
  • the two secondary strips 7 are substantially perpendicular to the axis of main symmetry 14 in the rest position of the mechanism 1.
  • the translation table 5 is arranged to allow additional movement along the main axis of symmetry 14 of the flexible guide to bring the center of mass 13 of the balance wheel closer to or further away from the center of rotation 12.
  • the pendulum when it is in motion, it makes an angle ⁇ with the axis of symmetry primary 14 initial flexible guidance at rest.
  • the translation table makes it possible to bring the center of mass 13 of the balance wheel closer to or further away from the center of rotation 12, to increase the rate of the mechanism and compensate for the effect of gravity on the movement of the pendulum. Movement occurs in the direction of gravity.
  • the figures 3 and 4 show a second embodiment of a resonator mechanism 10 according to the invention.
  • the flexible guide and the oscillating mass 2 are identical to the first embodiment.
  • the resonator mechanism further comprises a translation table 15 arranged to allow movement in a direction perpendicular to the main axis of symmetry 14 of the flexible guide.
  • the translation table 15 is arranged perpendicular to that of the first embodiment, and allows movement of the flexible guide perpendicular to the movement of the first embodiment.
  • the translation table 15 comprises at least one, preferably two, secondary flexible blades 17 and a rigid part 16, the secondary flexible blades 17 being joined by one end to the rigid part 16, and by another end to the rocker arm 2.
  • blades 4 of the flexible guide are connected to the rigid part 16 of the translation table 15.
  • the secondary flexible blades 17 are substantially parallel and arranged in different directions.
  • the secondary flexible blades 17 are directly joined to the ring so as to be substantially parallel to the flexible guide.
  • the two secondary blades 17 are substantially parallel to the main axis of symmetry 14 in the rest position of the mechanism 10.
  • the rigid part 16 comprises an elongated body arranged perpendicular to the secondary flexible blades 17 and to the axis main symmetry 14 of the flexible guide.
  • the translation table 5 is arranged to allow an additional movement perpendicular to the main axis of symmetry 14 of the flexible guide to move the center of mass 13 of the pendulum with respect to the center of rotation 12. As seen in the figure 4 , when the pendulum is in motion, it forms an angle ⁇ with the initial main axis of symmetry 14 of the flexible guide at rest. Thus, when gravity is oriented perpendicular to the main axis of symmetry 14, the translation table makes it possible to move the center of mass 13 away from the center of rotation 12 of the balance, to increase the rate of the mechanism and compensate for the effect of gravity on the movement of the pendulum.
  • the third embodiment of the figure 5 shows a resonator mechanism 20 comprising two translation tables 5, 25 arranged in series between the flexible guide and the oscillating weight 2.
  • the two tables 5, 25 are substantially perpendicular to each other to allow the effects of gravity to be compensated in both directions .
  • the first translation table 5 is arranged as in the first embodiment, and the second translation table 25 is arranged between the flexible guide and the first translation table 5.
  • the second translation table 25 is similar to that of the second embodiment of achievement and oriented in the same direction.
  • the rocker arm comprises an internal lug 8 on which the secondary blades 7 of the first translation table 5 are joined.
  • the second translation table 25 comprises a second rigid part 26 and a pair of tertiary blades 27 joined to the substantially perpendicular segment 9 of the first angled rigid part 6 of the first translation table 5.
  • the crossed blades 4 of the flexible guide are joined by on the one hand to a stationary support 3, and on the other hand to the second rigid part 26 of the second translation table 25.
  • the secondary blades 7 of the first translation table 5 are joined on the one hand to the lug 8 and other starts from the substantially parallel segment of the rigid part 6 of the first translation table 5.
  • Such a combination of translation tables 5, 25 makes it possible to modify the rigidity of the flexible guide in both directions with respect to gravity as required.
  • the tables are reversed relative to each other.
  • the first translation table is arranged between the flexible guide and the second translation table, the second translation table being joined to the balance.
  • one of the translation tables is oriented in a direction different from the main axis of symmetry 14 of the pivot, and which can also be different from the axis perpendicular to the main axis of symmetry 14.
  • the invention also relates to a clock movement, not shown in the figures, the movement comprising a rotary resonator mechanism as described above.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Machine Tool Units (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electric Clocks (AREA)
EP20213737.8A 2020-12-14 2020-12-14 Resonatormechanismus eines uhrwerks, der mit einem verschieberahmen ausgestattet ist Pending EP4012506A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20213737.8A EP4012506A1 (de) 2020-12-14 2020-12-14 Resonatormechanismus eines uhrwerks, der mit einem verschieberahmen ausgestattet ist
US17/525,329 US20220187768A1 (en) 2020-12-14 2021-11-12 Timepiece resonator mechanism provided with a translation table
JP2021187586A JP7254147B2 (ja) 2020-12-14 2021-11-18 並進運動テーブルを備える計時器用共振器機構
CN202111523869.0A CN114624982A (zh) 2020-12-14 2021-12-14 设有平移台的时计谐振器机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20213737.8A EP4012506A1 (de) 2020-12-14 2020-12-14 Resonatormechanismus eines uhrwerks, der mit einem verschieberahmen ausgestattet ist

Publications (1)

Publication Number Publication Date
EP4012506A1 true EP4012506A1 (de) 2022-06-15

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EP20213737.8A Pending EP4012506A1 (de) 2020-12-14 2020-12-14 Resonatormechanismus eines uhrwerks, der mit einem verschieberahmen ausgestattet ist

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US (1) US20220187768A1 (de)
EP (1) EP4012506A1 (de)
JP (1) JP7254147B2 (de)
CN (1) CN114624982A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230400358A1 (en) 2022-06-10 2023-12-14 Envision Aesc Japan Ltd. Temperature sensor device and battery module

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2911012A1 (de) 2014-02-20 2015-08-26 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oszillator einer Uhr
US20170010586A1 (en) * 2014-12-18 2017-01-12 The Swatch Group Research And Development Ltd Timepiece resonator with crossed strips
EP3324247A1 (de) * 2016-11-16 2018-05-23 The Swatch Group Research and Development Ltd Schutz der platten eines resonators einer mechanischen armbanduhr
EP3476748A1 (de) * 2017-10-24 2019-05-01 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Schwenkmechanismus mit flexiblen elementen
EP3561607A1 (de) * 2018-04-23 2019-10-30 ETA SA Manufacture Horlogère Suisse Stossdämpfungsschutz eines resonatormechanismus mit flexibler drehführung
US20200003805A1 (en) 2018-06-29 2020-01-02 Abb Schweiz Ag Partial discharge monitoring system with a compatibility-function for a voltage indication system
US20200033805A1 (en) * 2018-07-24 2020-01-30 The Swatch Group Research And Development Ltd Timepiece oscillator with flexure bearings having a long angular stroke

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2911012A1 (de) 2014-02-20 2015-08-26 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oszillator einer Uhr
US20170010586A1 (en) * 2014-12-18 2017-01-12 The Swatch Group Research And Development Ltd Timepiece resonator with crossed strips
EP3324247A1 (de) * 2016-11-16 2018-05-23 The Swatch Group Research and Development Ltd Schutz der platten eines resonators einer mechanischen armbanduhr
EP3476748A1 (de) * 2017-10-24 2019-05-01 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Schwenkmechanismus mit flexiblen elementen
EP3561607A1 (de) * 2018-04-23 2019-10-30 ETA SA Manufacture Horlogère Suisse Stossdämpfungsschutz eines resonatormechanismus mit flexibler drehführung
US20200003805A1 (en) 2018-06-29 2020-01-02 Abb Schweiz Ag Partial discharge monitoring system with a compatibility-function for a voltage indication system
US20200033805A1 (en) * 2018-07-24 2020-01-30 The Swatch Group Research And Development Ltd Timepiece oscillator with flexure bearings having a long angular stroke

Also Published As

Publication number Publication date
JP2022094312A (ja) 2022-06-24
CN114624982A (zh) 2022-06-14
US20220187768A1 (en) 2022-06-16
JP7254147B2 (ja) 2023-04-07

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