EP 2455820 A3 20160518 - Driving organ for clockwork
Title (en)
Driving organ for clockwork
Title (de)
Antriebsorgan für Uhrwerken
Title (fr)
Organe moteur pour mouvement d'horlogerie
Publication
Application
Priority
CH 19232010 A 20101117
Abstract (en)
[origin: EP2455820A2] The driving mechanism (1) has main spring unit with first spring (8) and second spring (11) made of fiber-reinforced polymer. The inner extremity (10) and outer extremity (13) of first and second springs are respectively coupled to center (16) and periphery (15) of plate (14) so that two springs simultaneously wind up around axis when driving mechanism is wound up. The outer extremity (9) and inner extremity (12) of first and second springs are respectively fastened to outer drum (6) of barrel and coupled to arbor (3).
IPC 8 full level
CPC (source: EP US)
G04B 1/12 (2013.01 - EP US); G04B 1/145 (2013.01 - EP US)
Citation (search report)
- [AD] EP 2060957 A1 20090520 - ETA SA MFT HORLOGERE SUISSE [CH]
- [A] CH 699988 A2 20100531 - PATEK PHILIPPE SA GENEVE [CH]
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2455820 A2 20120523; EP 2455820 A3 20160518; EP 2455820 B1 20170830; CH 704150 A2 20120531; CN 102467069 A 20120523; JP 2012108133 A 20120607; US 2012120775 A1 20120517
DOCDB simple family (application)
EP 11188982 A 20111114; CH 19232010 A 20101117; CN 201110430606 A 20111116; JP 2011250799 A 20111116; US 201113291540 A 20111108