Title:
調整デバイスにより動作が強化されるムーブメントを備えた機械式計時器
Document Type and Number:
Japanese Patent JP6826673
Kind Code:
B2
Abstract:
The mechanical timepiece is equipped with a movement which includes an indicator mechanism of at least one time data item, a mechanical resonator forming a slave oscillator which paces the running of the indicator mechanism, and a mechanical correction device to prevent a possible time drift in the running of the indicator mechanism. The mechanical correction device is formed by a master mechanical oscillator and a mechanical braking device of the mechanical resonator, this braking device arranged to apply periodically to the mechanical resonator mechanical braking pulses at a braking frequency determined by the master mechanical oscillator. Then, the mechanical system, formed by the mechanical resonator and the braking device, is configured to enable the braking device to be able to start the braking pulses preferably at any position of the mechanical resonator. Preferably, the braking pulses have a duration of less than one quarter of a set-point period.
Inventors:
Tombe, Lionel
Application Number:
JP2019553303A
Publication Date:
February 03, 2021
Filing Date:
March 16, 2018
Export Citation:
Assignee:
The Swatch Group Research and Development Limited
International Classes:
G04B17/00; G04C3/06; G04C11/08
Domestic Patent References:
| JP2017037065A | ||||
| JP9138286A |
Foreign References:
| WO2001048566A1 | ||||
| FR2162404A1 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa
Masaki Yamakawa