Title:
ROTARY RESONATOR WITH A FLEXIBLE GUIDE SYSTEM BASED ON A DETACHED LEVER ESCAPEMENT
Document Type and Number:
WIPO Patent Application WO/2018/095596
Kind Code:
A3
Abstract:
Timepiece regulating member (300) comprising a detached escapement mechanism (200) with a lever (7), and a resonator (100) having a pin (6) rigidly secured to an inertial element (2) and cooperating with a fork (8) of the lever (7), the inertial element (2) being acted upon by elastic return means (3) fastened to the plate (1) and being arranged to cooperate indirectly with an escapement wheel (4) of the escapement mechanism (200), wherein the resonator (100) is a rotary resonator with a virtual pivot for pivoting about a main axis (DP), with a flexible guide system subjected to the elastic return of flexible blades (5), attached to the plate (1), which define together a virtual pivot with a main axis (DP), the lever (7) pivoting about a secondary axis (DS), and wherein the main axis (DP), the secondary axis (DA) and the pivot axis (DE) of the escapement wheel (4) are plotted at right-angles, the apex of which is on the secondary axis (DS).
Inventors:
WINKLER PASCAL (CH)
HELFER JEAN-LUC (CH)
DI DOMENICO GIANNI (CH)
HELFER JEAN-LUC (CH)
DI DOMENICO GIANNI (CH)
Application Number:
PCT/EP2017/069043
Publication Date:
September 13, 2018
Filing Date:
July 27, 2017
Export Citation:
Assignee:
ETA SA MFT HORLOGERE SUISSE (CH)
International Classes:
G04B15/08; G04B17/04; G04B17/26
Foreign References:
| EP3032352A1 | 2016-06-15 | |||
| EP2990885A1 | 2016-03-02 | |||
| EP2894520A2 | 2015-07-15 |
Other References:
"Théorie de l'horlogerie", 1 October 1998, LAUSANNE, article CHARLES-ANDRÉ REYMONDIN: "Théorie de l'horlogerie", pages: 104, XP055465889
Attorney, Agent or Firm:
ICB SA (CH)
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