EP 2137578 B1 20110511 - DRIVING MEMBER WITH HELICAL SPRING
Title (en)
DRIVING MEMBER WITH HELICAL SPRING
Title (de)
ANTRIEBSGLIED MIT HELIXFÖRMIGER FEDER
Title (fr)
ORGANE MOTEUR AVEC RESSORT HELICOIDAL
Publication
Application
Priority
IB 2007000714 W 20070322
Abstract (en)
[origin: WO2008114071A2] The invention relates to a driving member (1) that can be integrated in a time piece, said member including at least one helical spring (1.1) that operates in compression or traction along the longitudinal axis thereof. The free end of the springs (1.1) is attached to a driving means (1.3) arranged so as to be capable of a translation movement parallel to said axis depending on the movement of the free end of said springs (1.1) as they unwind. The driving means (1.3) is in engagement with at least one driving sprocket (1.4) in order to generate, via the translation, a rotation of said sprocket (1.4) for transmitting the force from said springs (1.1) as a torque to said time piece.
IPC 8 full level
G04B 1/10 (2006.01); G04B 3/00 (2006.01); G04B 23/02 (2006.01)
CPC (source: EP)
G04B 1/10 (2013.01); G04B 3/00 (2013.01); G04B 23/023 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008114071 A2 20080925; WO 2008114071 A3 20090430; AT E509303 T1 20110515; EP 2137578 A2 20091230; EP 2137578 B1 20110511
DOCDB simple family (application)
IB 2007000714 W 20070322; AT 07734047 T 20070322; EP 07734047 A 20070322