EP 1178371 A4 20051012 - MECHANICAL TIMEPIECE WITH ELECTROSTATIC CAPACITY TYPE DETECTING PART AND BRAKING PART
Title (en)
MECHANICAL TIMEPIECE WITH ELECTROSTATIC CAPACITY TYPE DETECTING PART AND BRAKING PART
Title (de)
MECHANISCHE UHR MIT EINEM DETEKTIONSELEMENT VON ELEKTROSTATISCHEM KAPAZITTSTYP UND MIT EINEM BREMSELEMENT
Title (fr)
PIECE D'HORLOGERIE MECANIQUE A ELEMENT DE DETECTION A CAPACITE ELECTROSTATIQUE ET ELEMENT DE FREINAGE
Publication
Application
Priority
JP 0001165 W 20000229
Abstract (en)
[origin: EP1178371A1] In a mechanical timepiece of the present invention, a movement 200 includes a barrel complete 120, a center wheel and pinion 124, a third wheel and pinion 126, a fourth wheel and pinion 128, a balance with hairspring 140, an escape wheel and pinion 130 and a pallet fork 142. Coils 180a, 180b are attached on a front surface of a main plate in a manner facing a surface of a balance wheel 140b close to the main plate. A balance magnet 140e is attached on a surface of the balance wheel 140b close to the main plate in a manner facing a front surface of the main plate 102. The mechanical timepiece of the invention has a detector section 276 provided to detect a swing angle of the balance with hairspring by detecting a change of electrostatic capacitance between a balance electrostatic capacitor electrode portion 240 and a detecting electrostatic capacitor electrode 250 varying corresponding to an operating state of the balance with hairspring 140, and a brake section 146 structured to apply such a force as suppressing rotation of the balance with hairspring 140 to the balance with hairspring 140 when a swing angle of the balance with hairspring 140 detected by the detector section 276 is greater than a previously-set set angle. <IMAGE>
IPC 1-7
IPC 8 full level
G04B 17/06 (2006.01); G04B 17/20 (2006.01); G04B 17/26 (2006.01); G04C 3/04 (2006.01); G04C 3/06 (2006.01); G04C 10/00 (2006.01); G04C 11/08 (2006.01)
CPC (source: EP)
G04B 17/20 (2013.01); G04B 17/26 (2013.01); G04C 3/047 (2013.01); G04C 3/06 (2013.01); G04C 11/084 (2013.01)
Citation (search report)
- [A] US 3937001 A 19760210 - BERNEY JEAN-CLAUDE
- See references of WO 0165319A1
Designated contracting state (EPC)
CH GB LI
DOCDB simple family (publication)
EP 1178371 A1 20020206; EP 1178371 A4 20051012; CN 1357118 A 20020703; WO 0165319 A1 20010907
DOCDB simple family (application)
EP 00905402 A 20000229; CN 00809245 A 20000229; JP 0001165 W 20000229