Title:
OPTIMIZED MAGNETO-MECHANICAL TIMEPIECE ESCAPEMENT MECHANISM
Document Type and Number:
Japanese Patent JP2020046426
Kind Code:
A
Abstract:
To provide a robust self-starting escapement mechanism for maintaining the oscillation of a high-frequency, high-quality factor resonator.SOLUTION: Provided is an optimized magneto-mechanical timepiece escapement mechanism. An oscillator includes a resonator, which has an inertial mass returned by elastic return means and carries an entry pallet PE and an exit pallet PS cooperating with teeth 22 of an escape wheel 20 each provided with a magnet 23. Each pallet PE, PS includes a magnetic arrangement 30 with an annular sector, centered on the axis of oscillation OR of the resonator, defining a first magnetic barrier area. The first magnetic barrier area extends above and/or below a mechanical pallet-stone of the entry pallet PE or exit pallet PS, over the entire length of the mechanical pallet-stone acting as support for the teeth 22 during supplementary arc, in order to form a magnetic cylinder escapement mechanism.SELECTED DRAWING: Figure 23
Inventors:
GIANNI DI DOMENICO
JEROME FAVRE
DOMINIQUE LECHOT
BAPTISTE HINAUX
OLIVIER MATTHEY
PASCAL WINKLER
MARC STRANCZL
MICHELLE WILMAN
AHMAD ODEH
JEROME FAVRE
DOMINIQUE LECHOT
BAPTISTE HINAUX
OLIVIER MATTHEY
PASCAL WINKLER
MARC STRANCZL
MICHELLE WILMAN
AHMAD ODEH
Application Number:
JP2019165896A
Publication Date:
March 26, 2020
Filing Date:
September 12, 2019
Export Citation:
Assignee:
SWATCH GROUP RES & DEV LTD
International Classes:
G04B15/00; G04C5/00
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa
Masaki Yamakawa
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