Global Patent Index - EP 2746866 B1

EP 2746866 B1 20160518 - Timepiece barrel

Title (en)

Timepiece barrel

Title (de)

Federgehäuse einer Uhr

Title (fr)

Barillet d'horlogerie

Publication

EP 2746866 B1 (FR)

Application

EP 12197742 A

Priority

EP 12197742 A

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

G04B 1/14 (2006.01); G04B 1/16 (2006.01)

CPC (source: EP US)

G04B 1/145 (2013.01 - EP); 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