EP 3502788 B1 20210317 - STANDALONE DEVICE FOR ADJUSTING THE ACTIVE LENGTH OF A HAIRSPRING
Title (en)
STANDALONE DEVICE FOR ADJUSTING THE ACTIVE LENGTH OF A HAIRSPRING
Title (de)
VORRICHTUNG ZUR SELBSTREGULIERUNG DER AKTIVEN LÄNGE EINER SPIRALE
Title (fr)
DISPOSITIF DE RÉGLAGE AUTONOME DE LA LONGUEUR ACTIVE D'UN SPIRAL
Publication
Application
Priority
EP 17208988 A 20171220
Abstract (en)
[origin: US2019187618A1] A device for autonomous adjustment of the active length of a balance spring includes a regulator mounted on a plate with a cock, a balance spring stud holder being pivotally mounted on the cock, the regulator being pivotally mounted on the stud holder and including a pivot arm and device for changing the active length of the balance spring by pivoting the regulator. The device includes an elastic stress device to exert an elastic, return-to-position action on the regulator, and an inertia block, mounted for free rotation on the cock and connected to the pivot arm of the regulator, arranged to move the pivot arm of the regulator between a rest position and a correction position of the device, and simultaneously act on the device for changing the active length of the balance spring.
IPC 8 full level
G04B 17/26 (2006.01); G04B 18/02 (2006.01); G04B 17/28 (2006.01)
CPC (source: CH CN EP US)
G04B 17/063 (2013.01 - US); G04B 17/26 (2013.01 - US); G04B 17/28 (2013.01 - EP US); G04B 18/02 (2013.01 - US); G04B 18/023 (2013.01 - CH EP US); G04B 18/028 (2013.01 - EP); G04B 18/04 (2013.01 - US); G04B 18/06 (2013.01 - CN)
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 3502788 A1 20190626; EP 3502788 B1 20210317; CH 714480 A2 20190628; CN 109991826 A 20190709; CN 109991826 B 20210305; JP 2019113535 A 20190711; JP 6688371 B2 20200428; US 11397410 B2 20220726; US 2019187618 A1 20190620
DOCDB simple family (application)
EP 17208988 A 20171220; CH 15742017 A 20171220; CN 201811492233 A 20181207; JP 2018221969 A 20181128; US 201816221664 A 20181217