EP 3312681 B1 20200129 - CLOCK MOVEMENT COMPRISING A DEVICE FOR EQUALISING AN ENGINE TORQUE
Title (en)
CLOCK MOVEMENT COMPRISING A DEVICE FOR EQUALISING AN ENGINE TORQUE
Title (de)
UHRWERK, DAS EINE VORRICHTUNG ZUR EINREGELUNG EINES MOTORDREHMOMENTS UMFASST
Title (fr)
MOUVEMENT HORLOGER COMPORTANT UN DISPOSITIF D'ÉGALISATION D'UN COUPLE MOTEUR
Publication
Application
Priority
EP 16194627 A 20161019
Abstract (en)
[origin: US2018107166A1] Timepiece movement comprising a mechanism and a spring barrel provided in order to drive the mechanism. The spring barrel comprises a drum and a motor spring in order to exert a driving torque which is variable as a function of the degree of winding-up of the motor spring. The timepiece movement comprises furthermore an equalisation device which is connected kinematically to the spring barrel in order to be able to be driven by it and to be able to exert an auxiliary torque which varies as a function of the degree of winding-up of the motor spring so as to counter variations in the motor torque. The equalisation device comprises a first magnetic element and a second magnetic element which are provided such that, when the equalisation device is driven by the spring barrel, they are displaced one relative to the other by exerting one on the other a magnetic force which varies as a function of the relative position occupied by the first magnetic element and the second magnetic element and which produces the auxiliary torque.
IPC 8 full level
CPC (source: CN EP US)
G04B 1/16 (2013.01 - CN); G04B 1/20 (2013.01 - CN); G04B 1/22 (2013.01 - EP US); G04C 5/00 (2013.01 - EP US); G04C 5/005 (2013.01 - 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 3312681 A1 20180425; EP 3312681 B1 20200129; CN 107966893 A 20180427; CN 107966893 B 20200327; HK 1252772 A1 20190531; JP 2018066727 A 20180426; JP 6381757 B2 20180829; US 10474109 B2 20191112; US 2018107166 A1 20180419
DOCDB simple family (application)
EP 16194627 A 20161019; CN 201710971750 A 20171018; HK 18112133 A 20180920; JP 2017173847 A 20170911; US 201715686463 A 20170825