Global Patent Index - EP 2753984 B1

EP 2753984 B1 20171101 - METHOD FOR FORMING A CLOCK BALANCE WHEEL-HAIRSPRING ASSEMBLY AND ADJUSTING THE OSCILLATION FREQUENCY

Title (en)

METHOD FOR FORMING A CLOCK BALANCE WHEEL-HAIRSPRING ASSEMBLY AND ADJUSTING THE OSCILLATION FREQUENCY

Title (de)

VERFAHREN ZUM ZUSAMMENBAU EINER UHRTEILGRUPPE VON UNRUH - SPIRALFEDER UND EINSTELLUNG IN DER SCHWINGUNGSFREQUENZ

Title (fr)

PROCÉDÉ D'AJUSTEMENT EN FRÉQUENCE D'OSCILLATION D'UN ENSEMBLE BALANCIER-SPIRAL

Publication

EP 2753984 B1 20171101 (FR)

Application

EP 12759076 A 20120905

Priority

  • EP 11180071 A 20110905
  • EP 2012067327 W 20120905
  • EP 12759076 A 20120905

Abstract (en)

[origin: EP2565727A1] The method involves determining process parameters between Gaussian distributions of theoretical frequency values of a balance wheel and hairspring variation corresponding to reduction in inertia of the wheel. The wheel and a hairspring are taken in random manner. A machining of balancing adjustment of the wheel to provide balancing tolerance, and a complementary machining of inertia adjustment are performed, according to torque of the hairspring, to form a balance wheel-hairspring assembly to oscillate at oscillation frequency after operation of the inertia adjustment.

IPC 8 full level

G04B 17/06 (2006.01); G04B 18/00 (2006.01); G04D 7/08 (2006.01)

CPC (source: EP US)

G04B 17/06 (2013.01 - EP US); G04B 18/006 (2013.01 - EP US); G04D 7/085 (2013.01 - EP US); G04D 7/1292 (2013.01 - US); Y10T 29/49581 (2015.01 - EP 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 2565727 A1 20130306; CN 103917925 A 20140709; CN 103917925 B 20160914; EP 2753984 A1 20140716; EP 2753984 B1 20171101; HK 1199503 A1 20150703; IN 2336CHN2014 A 20150619; JP 2014527636 A 20141016; JP 5848450 B2 20160127; RU 2557351 C1 20150720; US 2014157601 A1 20140612; US 9690260 B2 20170627; WO 2013034597 A1 20130314

DOCDB simple family (application)

EP 11180071 A 20110905; CN 201280042913 A 20120905; EP 12759076 A 20120905; EP 2012067327 W 20120905; HK 14113130 A 20141231; IN 2336CHN2014 A 20140327; JP 2014527702 A 20120905; RU 2014113313 A 20120905; US 201214239965 A 20120905