EP 3824354 A1 20210526 - CLOCKWORK MECHANISM HAVING A CAM
Title (en)
CLOCKWORK MECHANISM HAVING A CAM
Title (de)
UHRWERKMECHANISMUS MIT EINEM NOCKEN
Title (fr)
MECANISME HORLOGER A CAME
Publication
Application
Priority
- EP 18184529 A 20180719
- IB 2019056140 W 20190718
Abstract (en)
[origin: WO2020016818A1] The clockwork mechanism (1) according to the invention comprises a cam (4) that is intended to be driven in rotation, a cam follower (2) and a return spring (9) arranged so as to keep the cam follower (2) pressed against the cam (4), the return spring (9) being arranged so as to work within a predetermined range of winding angles during each rotation of the cam (4). The stiffness of the return spring (9) is zero or negative in at least part of the predetermined range.
IPC 8 full level
G04B 19/02 (2006.01); G04B 11/00 (2006.01); G04B 19/24 (2006.01)
CPC (source: EP)
G04B 11/00 (2013.01); G04B 19/02 (2013.01); G04B 19/24 (2013.01); G04F 7/0866 (2013.01)
Citation (search report)
See references of WO 2020016818A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3598242 A1 20200122; EP 3824354 A1 20210526; WO 2020016818 A1 20200123
DOCDB simple family (application)
EP 18184529 A 20180719; EP 19766359 A 20190718; IB 2019056140 W 20190718