Global Patent Index - EP 3211486 B1

EP 3211486 B1 20180926 - METHOD FOR ATTACHING A HAIRSPRING FOR MECHANICAL CLOCK MOVEMENT

Title (en)

METHOD FOR ATTACHING A HAIRSPRING FOR MECHANICAL CLOCK MOVEMENT

Title (de)

BEFESTIGUNGSVERFAHREN EINER SPIRALFEDER FÜR EIN MECHANISCHES UHRWERK

Title (fr)

PROCEDE DE FIXATION D'UN SPIRAL POUR MOUVEMENT D'HORLOGERIE MECANIQUE

Publication

EP 3211486 B1 20180926 (FR)

Application

EP 16157390 A 20160225

Priority

EP 16157390 A 20160225

Abstract (en)

[origin: JP2017151080A] PROBLEM TO BE SOLVED: To provide a method of attaching a balance spring so that it does not deviate from its static position without inducing a mechanical stress in the balance spring.SOLUTION: A method of attaching a final outer coil (12) of a balance spring (4) for timepiece to an inside of a groove (70) disposed in a stud (14) is provided. This method includes a step of adhesively bonding the final outer coil (12) of the balance spring (4) for timepiece using a fluent adhesive having a viscosity of 200-400 mPa s.SELECTED DRAWING: Figure 2B

IPC 8 full level

G04B 17/32 (2006.01)

CPC (source: CN EP US)

G04B 17/063 (2013.01 - US); G04B 17/325 (2013.01 - EP US); G04B 17/34 (2013.01 - CN 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 3211486 A1 20170830; EP 3211486 B1 20180926; CN 107121918 A 20170901; CN 107121918 B 20190917; EP 3432083 A1 20190123; JP 2017151080 A 20170831; JP 6259056 B2 20180110; TW 201732466 A 20170916; TW I701528 B 20200811; US 10018965 B2 20180710; US 2017248918 A1 20170831

DOCDB simple family (application)

EP 16157390 A 20160225; CN 201611121756 A 20161208; EP 18183176 A 20160225; JP 2016237311 A 20161207; TW 105134437 A 20161025; US 201615298498 A 20161020