Global Patent Index - EP 2761380 A2

EP 2761380 A2 20140806 - INTEGRAL ASSEMBLY OF A HAIRSPRING AND A COLLET

Title (en)

INTEGRAL ASSEMBLY OF A HAIRSPRING AND A COLLET

Title (de)

EINTEILIGE ANORDNUNG AUS EINER SPIRALFEDER UND SPANNZANGE

Title (fr)

ENSEMBLE MONOLITHIQUE RESSORT SPIRAL-VIROLE

Publication

EP 2761380 A2 20140806 (FR)

Application

EP 12766973 A 20121001

Priority

  • EP 11405332 A 20110929
  • EP 2012069372 W 20121001
  • EP 12766973 A 20121001

Abstract (en)

[origin: WO2013045706A2] The invention relates to an integral assembly of a single or double hairspring and an unsplit collet, which is to be fitted onto a balance staff, characterized in that: the collet (1) consists of two portions for receiving the balance staff which are located opposite one another, and one of which includes at least the first of the bearing surfaces (2 or 3) for the balance staff, as well as a point (10, 11) for attaching the hairspring, and the other of which includes at least the second of the bearing surfaces (4, 5 or 14) for the balance staff, the two portions for receiving the balance staff being connected together by two linking portions that are less rigid than the receiving portions so as to be capable of elastically deforming during the fitting of a balance staff. According to another aspect, the invention also relates to an integral assembly of a hairspring and a collet, including at least two stages, as well as to a method for manufacturing such an assembly.

IPC 8 full level

G04B 17/34 (2006.01)

CPC (source: EP US)

G04B 1/14 (2013.01 - US); G04B 1/145 (2013.01 - US); G04B 17/345 (2013.01 - EP US); Y10T 29/49579 (2015.01 - EP US)

Citation (search report)

See references of WO 2013045706A2

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)

WO 2013045706 A2 20130404; WO 2013045706 A3 20130530; CN 103930837 A 20140716; CN 103930837 B 20170503; EP 2761380 A2 20140806; EP 2761380 B1 20230531; EP 4224257 A1 20230809; JP 2014528572 A 20141027; JP 6301834 B2 20180328; US 2015023140 A1 20150122; US 9411314 B2 20160809

DOCDB simple family (application)

EP 2012069372 W 20121001; CN 201280047970 A 20121001; EP 12766973 A 20121001; EP 23173087 A 20121001; JP 2014532435 A 20121001; US 201214348767 A 20121001