Clockwork for wristwatch, has clutch-engaging mechanism comprising inertial ratchets integrated to hub of one of mobile engagement mechanisms and engaged with stop integrated to other mobile engagement mechanism

摘要

#CMT# #/CMT# The clockwork has a centrifugal clutch-engaging mechanism including two mobile engagement mechanisms (411, 412), where rotation of one of the mobile engagement mechanisms causes rotation of the other mobile engagement mechanism. The clutch-engaging mechanism comprises inertial ratchets constituted of a counterweight (413) and a flexible lug (414), integrated to a hub (415) of the former mobile engagement mechanism and engaged with a stop (416) integrated to the latter mobile engagement mechanism. #CMT#USE : #/CMT# Clockwork for a wristwatch. Can also be used for a pocket watch. #CMT#ADVANTAGE : #/CMT# The configuration of the clockwork ensures selective coupling according to the rotation direction relative to the mobile engagement mechanism without determining intrinsic driving and driven characters for another mobile engagement mechanism. The clockwork can be remounted automatically. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an enlarged sectional view of a clutch device of a clockwork. 411, 412 : Mobile engagement mechanisms 413 : Counterweight 414 : Flexible lug 415 : Hub 416 : Stop.