EP 3227754 B1 20191204 - CLOCKWORK BALANCE WHEEL-HAIRSPRING ASSEMBLY
Title (en)
CLOCKWORK BALANCE WHEEL-HAIRSPRING ASSEMBLY
Title (de)
SPIRALUNRUH-EINHEIT FÜR UHRWERK
Title (fr)
ENSEMBLE BALANCIER-SPIRAL D'HORLOGERIE
Publication
Application
Priority
- EP 14182777 A 20140829
- EP 2015069085 W 20150819
Abstract (en)
[origin: WO2016030257A1] The invention relates to a balance/hairspring assembly comprising a balance swinging about a balance arbour and a hairspring in which an inner coil is attached to the balance arbour or to a ferrule mounted secured to the arbour and in which an outer coil is attached to a stud secured to a bridge, the balance including a hub, a felloe, an arm connecting the hub to the felloe, a front surface having a countersink and a rear surface, the arm comprising an opening for receiving and holding a counterweight, and the hairspring being mounted opposite the front surface of the balance. According to the invention, the counterweight is mounted on the arm on the side of the rear surface of the balance, the distance between the bottom of the countersink of the front surface of the balance and the hairspring is within a predetermined interval of 0.05 mm to 1.50 mm.
IPC 8 full level
G04B 18/00 (2006.01); G04B 18/06 (2006.01)
CPC (source: EP RU US)
G04B 18/00 (2013.01 - RU); G04B 18/006 (2013.01 - EP US); G04B 18/06 (2013.01 - 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 2990883 A1 20160302; CN 106796412 A 20170531; CN 106796412 B 20191001; EP 3227754 A1 20171011; EP 3227754 B1 20191204; JP 2017525967 A 20170907; JP 6293973 B2 20180314; RU 2017110089 A 20181001; RU 2017110089 A3 20190305; RU 2688418 C2 20190521; TW 201614400 A 20160416; TW I681268 B 20200101; US 10061269 B2 20180828; US 2017269552 A1 20170921; WO 2016030257 A1 20160303
DOCDB simple family (application)
EP 14182777 A 20140829; CN 201580046014 A 20150819; EP 15760108 A 20150819; EP 2015069085 W 20150819; JP 2017510864 A 20150819; RU 2017110089 A 20150819; TW 104128131 A 20150827; US 201515505270 A 20150819