Chronograph mechanism and timepiece comprising the chronograph mechanism

A chronograph mechanism includes an intermediate chronograph mobile (20) which is provided for transmitting a drive to first and second sweep-hand mobiles (30, 35). A first (55a) and a second return device (50b) are configured to return the first sweep-hand mobile to a first predetermined angular po...

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Bibliographic Details
Main Authors PAPI GIULIO, GENOUD MATHIEU
Format Patent
LanguageChinese
English
Published 11.05.2016
Subjects
HOROLOGY
PHYSICS
TIME-INTERVAL MEASURING
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Summary:A chronograph mechanism includes an intermediate chronograph mobile (20) which is provided for transmitting a drive to first and second sweep-hand mobiles (30, 35). A first (55a) and a second return device (50b) are configured to return the first sweep-hand mobile to a first predetermined angular position relative to the intermediate chronograph mobile, in the absence of angular immobilization of the first sweep-hand mobile by a first brake (50a), and the second sweep-hand mobile to a second predetermined angular position relative to the intermediate chronograph mobile, in the absence of angular immobilization of the second sweep-hand mobile by a second brake (50b). A control system (P1, P2, P3, 60) includes a coordination device (60) arranged to maintain the first and second brakes (50a, 50b) alternately in two opposite configurations, in each of which one of the first and second brakes (50a, 50b)is in an inactive state and the other is in an active state
Bibliography:Application Number: CN201510728168