EP 3869278 B1 20230308 - VERTICAL CLUTCH DEVICE FOR A TIMEPIECE
Title (en)
VERTICAL CLUTCH DEVICE FOR A TIMEPIECE
Title (de)
VERTIKALE KUPPLUNGSVORRICHTUNG FÜR UHR
Title (fr)
DISPOSITIF D'EMBRAYAGE VERTICAL POUR PIECE D'HORLOGERIE
Publication
Application
Priority
EP 20158703 A 20200221
Abstract (en)
[origin: CN113296383A] The invention relates to a vertical clutch device (1) for a timepiece. The vertical clutch device for a timepiece includes along a vertical axis (12) a first wheel (3) rotatably mounted about the vertical axis (12), a clutch disc (4), a spring (6), and a second wheel (2) rotatably mounted about the vertical axis (12). The vertical clutch device (1) is able to assume a clutched position where the second wheel (2) is rotated by the first wheel under the action of the spring (6) exerting a vertical force Fe to press the clutch disc (4) against the first wheel (3) and a disengaged position where the clutch disc (4) is subjected against the action of the spring (6) to a vertical force Fd separating it from the first wheel (3) so that the second wheel (2) is not rotated by the first wheel (3). The spring (6) of the vertical clutch device (1) is made of a shape memory alloy.
IPC 8 full level
G04B 11/00 (2006.01); G04F 7/08 (2006.01)
CPC (source: CN EP US)
C22C 9/01 (2013.01 - EP); C22C 9/04 (2013.01 - EP); G04B 11/003 (2013.01 - US); G04B 11/008 (2013.01 - EP); G04B 19/02 (2013.01 - CN); G04B 19/04 (2013.01 - CN); G04F 7/08 (2013.01 - EP); G04F 7/0833 (2013.01 - EP)
Citation (examination)
WO 2015073016 A1 20150521 - MASSACHUSETTS INST TECHNOLOGY [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 3869278 A1 20210825; EP 3869278 B1 20230308; CN 113296383 A 20210824; JP 2021135287 A 20210913; US 11353826 B2 20220607; US 2021271205 A1 20210902
DOCDB simple family (application)
EP 20217971 A 20201231; CN 202110189245 A 20210219; JP 2021011669 A 20210128; US 202117173626 A 20210211