EP 1528443 B1 20080806 - Constant force mechanism for a watch
Title (en)
Constant force mechanism for a watch
Title (de)
Konstantkraftvorrichtung für eine Uhr
Title (fr)
Dispositif de force constante pour une montre
Publication
Application
Priority
EP 03405772 A 20031028
Abstract (en)
[origin: EP1528443A1] The timepiece has an energy storage device with two seconds wheels engaging with a main-spring and an escapement (8), respectively. An energy storage spring exerts a force on a yoke to separate a finger from a stop wheel. The main spring exerts a force on a setting wheel to press the finger against the stop wheel and allow the storage spring to transmit the energy exerted by the storage spring to the escapement.
IPC 8 full level
G04B 1/22 (2006.01); G04B 17/28 (2006.01)
CPC (source: EP US)
G04B 1/225 (2013.01 - EP US); G04B 17/285 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES GB IT LI
DOCDB simple family (publication)
EP 1528443 A1 20050504; EP 1528443 B1 20080806; AT E403893 T1 20080815; DE 60322710 D1 20080918; US 2005088918 A1 20050428; US 6948845 B2 20050927
DOCDB simple family (application)
EP 03405772 A 20031028; AT 03405772 T 20031028; DE 60322710 T 20031028; US 96832404 A 20041018