EP 3084528 A2 20161026 - OPTIMISED TIMEPIECE BARREL
Title (en)
OPTIMISED TIMEPIECE BARREL
Title (de)
OPTIMIERTER UHRENLAUF
Title (fr)
BARILLET D'HORLOGERIE OPTIMISE
Publication
Application
Priority
- EP 13198806 A 20131220
- EP 2014076225 W 20141202
- EP 14805916 A 20141202
Abstract (en)
[origin: WO2015090938A2] The invention relates to a timepiece barrel (1) comprising a drum (2) with a first spring bearing surface (20) of a chamber (4) for holding a spring (3), comprising a bore (11) for guiding the pivotal movement of a core (9) and bordered by a lower abutment bearing surface (12) adjacent to said side inner wall (5), and by an outer abutment bearing surface (13). The first spring bearing surface (20) on the chamber (4) side comprises a DLC coating, and the bore (11) is free from any DLC coating. The invention also relates to a method for manufacturing such a barrel including: manufacturing such a drum (2); protecting at least the bore (11) in order to prevent the effects of an anti-wear or DLC treatment; and performing a DLC treatment on the entire drum (2) with the exception of the area thus protected.
IPC 8 full level
G04B 1/16 (2006.01)
CPC (source: CH CN EP US)
C23C 14/0605 (2013.01 - CH US); C23C 16/26 (2013.01 - CH US); G04B 1/16 (2013.01 - CH CN EP US); G04B 17/045 (2013.01 - CH); G04D 99/00 (2013.01 - US)
Citation (search report)
See references of WO 2015090938A2
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 2887150 A1 20150624; CH 709077 A2 20150630; CH 709077 B1 20180515; CN 105829976 A 20160803; EP 3084528 A2 20161026; JP 2016541000 A 20161228; JP 6236169 B2 20171122; US 2016357148 A1 20161208; WO 2015090938 A2 20150625; WO 2015090938 A3 20160407; WO 2015090938 A4 20160602
DOCDB simple family (application)
EP 13198806 A 20131220; CH 902014 A 20140122; CN 201480069412 A 20141202; EP 14805916 A 20141202; EP 2014076225 W 20141202; JP 2016558268 A 20141202; US 201415106515 A 20141202