EP 1612625 B1 20080723 - Power reserve indicator for a mechanical timepiece
Title (en)
Power reserve indicator for a mechanical timepiece
Title (de)
Gangreserveanzeige für eine mechanische Uhr
Title (fr)
Mécanisme indicateur de la réserve de marche d'une montre mécanique
Publication
Application
Priority
EP 04405403 A 20040701
Abstract (en)
[origin: EP1612625A1] The mechanism has a differential gear (16) with an output ratchet (18) driven in two directions during winding and unwinding of a mainspring. Two display units are coupled to the ratchet and are terminated by needles (32a, 32b). Each display unit is moved successively by a counting wheel (21), which is driven by the ratchet, to respectively indicate lower and upper fractions of a power reserve of the mainspring. One of the display units is constituted by a friction wheel (24), a pinion (25), a setting wheel (26) and a rotating display unit (27), and the other display unit is constituted by an intermediate wheel (28), a pinion (29) and a rotating display unit (30).
IPC 8 full level
G04B 9/00 (2006.01)
CPC (source: EP)
G04B 9/005 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1612625 A1 20060104; EP 1612625 B1 20080723; AT E402430 T1 20080815; DE 602004015267 D1 20080904; WO 2006013120 A1 20060209
DOCDB simple family (application)
EP 04405403 A 20040701; AT 04405403 T 20040701; DE 602004015267 T 20040701; EP 2005052521 W 20050602