EP 2746866 B1 20160518 - Timepiece barrel
Title (en)
Timepiece barrel
Title (de)
Federgehäuse einer Uhr
Title (fr)
Barillet d'horlogerie
Publication
Application
Priority
EP 12197742 A 20121218
Abstract (en)
[origin: EP2746866A1] The timepiece barrel (1) has a spring (7) that is housed between a pivoting drum (6) and a ratchet (2). A single-portion sub-assembly (10) is coaxial with an arbor (3) for carrying ratchet. A hub (4) is provided for guiding barrel main-portion in a bottom plate (9). The single-portion sub-assembly is pivoted on an upper shoulder (13) in a bore (51) of the drum on end pipe. The spring is made of cobalt-nickel-chromium based alloy comprising 44 to 46% cobalt, 20 to 22% nickel, 17 to 19% chromium, 4 to 6% iron, 3 to 5% tungsten, 3 to 5% molybdenum, 0 to 2% titanium and 0 to 1 % beryllium.
IPC 8 full level
CPC (source: EP US)
G04B 1/145 (2013.01 - EP US); G04B 1/16 (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 2746866 A1 20140625; EP 2746866 B1 20160518; CN 103869675 A 20140618; CN 103869675 B 20170728; CN 203849561 U 20140924; HK 1199115 A1 20150619; JP 2014119462 A 20140630; JP 5687756 B2 20150318; RU 2013156066 A 20150627; RU 2640757 C2 20180111; US 2014169141 A1 20140619; US 8894275 B2 20141125
DOCDB simple family (application)
EP 12197742 A 20121218; CN 201310699729 A 20131218; CN 201320838991 U 20131218; HK 14112572 A 20141215; JP 2013260872 A 20131218; RU 2013156066 A 20131217; US 201314104199 A 20131212