EP 2735923 B1 20190424 - Drive mechanism for the hands of an electro-mechanical watch, provided with a locking device
Title (en)
Drive mechanism for the hands of an electro-mechanical watch, provided with a locking device
Title (de)
Zeigerantriebsmechanismus einer elektromechanischen Uhr, der mit einer Verriegelung ausgestattet ist
Title (fr)
Mécanisme d'entraînement d'aiguilles d'une montre électro-mécanique, muni d'un dispositif de verrouillage
Publication
Application
Priority
- EP 12194079 A 20121123
- EP 13189578 A 20131021
Abstract (en)
[origin: EP2735922A1] The mechanism (1) has a set of gear wheels (3-7) connected to an electric motor (2) to move the hands forward or backward on each actuation of the electric motor. A locking device (20) includes a piezoelectric actuator (21) for locking a wheel between actuations of the electric motor in a rest mode via a bolt (22). The piezoelectric actuator releases the set of gear wheels when actuated by electrical signal at the moment of each actuation of the electric motor to move the hands forward or backward.
IPC 8 full level
G04C 3/14 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2735922 A1 20140528; CN 103838133 A 20140604; CN 103838133 B 20170111; CN 203858461 U 20141001; EP 2735923 A1 20140528; EP 2735923 B1 20190424; HK 1186058 A2 20140307; HK 1198722 A1 20150529; JP 2014106231 A 20140609; JP 5824022 B2 20151125; US 2014146645 A1 20140529; US 9188960 B2 20151117
DOCDB simple family (application)
EP 12194079 A 20121123; CN 201310591626 A 20131122; CN 201320741466 U 20131122; EP 13189578 A 20131021; HK 13113072 A 20131122; HK 14112115 A 20141202; JP 2013241637 A 20131122; US 201314082357 A 20131118