EP 2987035 B1 20170322 - MECHANICAL OSCILLATOR FOR A TIMEPIECE MOVEMENT
Title (en)
MECHANICAL OSCILLATOR FOR A TIMEPIECE MOVEMENT
Title (de)
MECHANISCHER OSZILLATOR FÜR EIN UHRWERK
Title (fr)
OSCILLATEUR MECANIQUE POUR MOUVEMENT HORLOGER
Publication
Application
Priority
- CH 7862013 A 20130417
- EP 2014056883 W 20140404
Abstract (en)
[origin: WO2014170147A2] The present invention concerns a mechanical oscillator (1), for a timepiece movement, comprising a balance (14) combined with a spiral spring (16), and a balance bridge (2) carrying a bush (8) in which there pivots one end of a balance shaft (12), to which said balance (14) and a first end of the spiral spring (16) are rigidly connected, a support (18) for holding the second end of the spiral spring (16), and a protection cage (26, 126) for protecting the spiral spring (16) comprising a substantially planar first face (28), rigidly connected to the balance bridge (2), and a substantially cylindrical wall (32) arranged at the periphery of the spiral spring (16). The protection cage (26, 126) is open on the second face (30), positioned facing the balance (14), and has first and second openings (34, 36) provided in the first face (28) to define respective passages for the balance shaft (12) and for the support (18).
IPC 8 full level
G04B 17/06 (2006.01); G04B 17/32 (2006.01); G04B 43/00 (2006.01)
CPC (source: EP)
G04B 17/06 (2013.01); G04B 17/32 (2013.01); G04B 43/007 (2013.01)
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)
WO 2014170147 A2 20141023; WO 2014170147 A3 20141224; CH 707925 A1 20141031; EP 2987035 A2 20160224; EP 2987035 B1 20170322
DOCDB simple family (application)
EP 2014056883 W 20140404; CH 7862013 A 20130417; EP 14718023 A 20140404