EP 2570871 A1 20130320 - Hairspring with two spiral springs
Title (en)
Hairspring with two spiral springs
Title (de)
Spirale mit zwei Spiralfedern
Title (fr)
Spiral à deux ressort-spiraux
Publication
Application
Priority
EP 11181307 A 20110914
Abstract (en)
The spring (37) has a hairspring (41) whose inner coil has a collet (40) arranged on a mounting structure (32). Another hairspring (43) is connected to the outer coil of the hairspring (41). An inner coil of the hairspring (43) has a device (47) for shifting the pinning point comprising a free end arranged to be secured to a balance spring stud in the plane of hairspring (43). The shifting device has a structure (42) connected to the inner coil through an u-shaped bend extending from the inner coil of the hairspring (43) to avoid providing elastic torque. An independent claim is included for movement structure.
Abstract (fr)
L'invention se rapporte à un spiral (7, 37) comportant un premier ressort-spiral (11, 41) dont la spire interne comporte une virole (10, 40) agencée pour être montée sur un axe (2, 32), un deuxième ressort-spiral (13, 43) relié à la spire externe du premier ressort-spiral (11, 41) par un dispositif à élévation de courbe (15, 45). Selon l'invention, la spire interne du deuxième ressort-spiral (13, 43) comporte un dispositif de décalage (17, 47) du point pitonnage comprenant une extrémité libre (6, 36) agencée pour s'attacher à un piton (8, 38) dans le plan dudit deuxième ressort-spiral. L'invention concerne le domaine des résonateurs du type balancier - spiral.
IPC 8 full level
G04B 17/32 (2006.01)
CPC (source: EP US)
G04B 17/325 (2013.01 - EP US)
Citation (applicant)
- EP 1116954 A2 20010718 - HUEBNER ELMASCH AG [DE]
- CH 7952010 A 20100518
- CH 11442010 A 20100709
- CH 7202005 A 20050422
Citation (search report)
- [E] EP 2405312 A1 20120111 - MONTRES BREGUET SA [CH]
- [A] EP 2105807 A1 20090930 - NIVAROX SA [CH]
- [A] EP 1780611 A2 20070502 - PATEK PHILIPPE SA [CH]
- [A] EP 1850193 A1 20071031 - PATEK PHILIPPE SA [CH]
- [A] FR 2136084 A5 19721222 - HAAS CARL FIRME
- [A] CH 347769 A 19600715 - VUILLEUMIER MARCEL [CH]
- [A] CH 76336 A 19171201 - GLAUSER EDOUARD [CH]
- [A] EP 1798609 A2 20070620 - PATEK PHILIPPE SA [CH]
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 2570871 A1 20130320; EP 2570871 B1 20140319; CN 102998961 A 20130327; CN 102998961 B 20150610; HK 1183525 A1 20131227; JP 2013061340 A 20130404; JP 5486058 B2 20140507; RU 2012139263 A 20140320; US 2013064046 A1 20130314; US 8979359 B2 20150317
DOCDB simple family (application)
EP 11181307 A 20110914; CN 201210342803 A 20120914; HK 13110947 A 20130925; JP 2012202313 A 20120914; RU 2012139263 A 20120913; US 201213609858 A 20120911