EP 2551732 B1 20200506 - Balance with optimised pivotal movement
Title (en)
Balance with optimised pivotal movement
Title (de)
Unruh mit optimierter Drehbewegung
Title (fr)
Balancier à pivotement optimisé
Publication
Application
Priority
- EP 11405295 A 20110729
- EP 12177552 A 20120724
Abstract (en)
[origin: EP2551732A1] The wheel is qualified by a specific expression with parameter diameter of the wheel, frequency of an oscillator and the moment of inertia, where the wheel is pivoted by a bearing of a pivoting arrangement. The diameter of the wheel ranges between 7 and 10 mm, and the moment of inertia is greater than or equal to 12 1>0 minus 10 kilogram per square meter. The frequency of the oscillator is about 4 Hz. The diameter of the wheel is greater than that of an external periphery of a felloe or rim of the wheel. An independent claim is also included for an arrangement for pivoting a balance wheel for timepiece movement.
IPC 8 full level
G04B 17/06 (2006.01)
CPC (source: EP US)
G04B 17/063 (2013.01 - EP US)
Citation (examination)
EP 2395402 A1 20111214 - MONTRES BREGUET SA [CH]
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 2551732 A1 20130130; EP 2551732 B1 20200506; CH 705292 A2 20130131; CH 705292 B1 20161215; CN 102902193 A 20130130; CN 102902193 B 20151125; JP 2013033037 A 20130214; JP 6231264 B2 20171115; US 2013028056 A1 20130131; US 9016933 B2 20150428
DOCDB simple family (application)
EP 12177552 A 20120724; CH 11252012 A 20120725; CN 201210324150 A 20120727; JP 2012163200 A 20120724; US 201213556699 A 20120724