Title:
ROTARY RESONATOR WITH A FLEXIBLE GUIDE SYSTEM BASED ON A DETACHED LEVER ESCAPEMENT
Document Type and Number:
WIPO Patent Application WO/2018/103978
Kind Code:
A3
Abstract:
Timepiece regulating member (300) comprising a detached escapement mechanism (200) with a lever (7) and a resonator (100) having a Q quality factor, comprising an inertial element (2) with a pin (6) rigidly secured to the inertial element (2) and interacting with a fork (8) of the lever (7), the inertial element (2) being acted upon by elastic return means (3) fastened directly or indirectly to the plate (1) and being arranged to interact indirectly with an escapement wheel (4) that is part of the escapement mechanism (200); the resonator mechanism (100) is a rotary resonator with a virtual pivot, pivoting about a main axis (DP), and has a flexible guide system subjected to the elastic return of at least two flexible blades (5) fastened to the plate (1), together defining a virtual pivot with a main axis (DP), the lever (7) pivoting about a 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/EP2017/078497
Publication Date:
November 29, 2018
Filing Date:
November 07, 2017
Export Citation:
Assignee:
ETA SA MFT HORLOGERE SUISSE (CH)
International Classes:
G04B15/08; G04B17/04; G04B17/28
Foreign References:
| EP2894520A2 | 2015-07-15 | |||
| EP3032352A1 | 2016-06-15 | |||
| EP2990885A1 | 2016-03-02 | |||
| EP3035126A1 | 2016-06-22 |
Attorney, Agent or Firm:
ICB SA (CH)
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