TIMEPIECE SYNCHRONIZATION MECHANISM - ETA SA MANUFACTURE HORLOGÈRE SUISSE

Title:

TIMEPIECE SYNCHRONIZATION MECHANISM

Document Type and Number:

WIPO Patent Application WO/2015/096974

Kind Code:

A3

Abstract:

The invention relates to a mechanism (1) for synchronizing the rotational speed of a wheel train (2) subjected to a torque in a timepiece movement (10). Said mechanism (1) comprises an annular resonator (6) comprising a ring (7) placed around an axis (A). Said ring (7) is capable of periodically changing shape, which is induced by moving a driver (8) which is part of said mechanism (1). Said driver (8) is directly or indirectly driven by said torque.

More Like This:

JPS5492091	TUNING FORK TYPE CRYSTAL OSCILLATOR
JPS5411769	METHOD OF ADJUSTING OPERATING FREQUENCY OF ELECTRONIC TIMEPIECE AND CIRCUITRY THEREFOR

Inventors:

WINKLER PASCAL (CH)
HELFER JEAN-LUC (CH)

Application Number:

PCT/EP2014/076936

Publication Date:

September 24, 2015

Filing Date:

December 08, 2014

Export Citation:

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Assignee:

ETA SA MANUFACTURE HORLOGÈRE SUISSE (CH)

International Classes:

G04C5/00; G04B17/32

Domestic Patent References:

WO2006045824A2

2006-05-04

Foreign References:

EP2544370A1	2013-01-09
GB1049638A	1966-11-30
US3052084A	1962-09-04

Attorney, Agent or Firm:

ICB INGÉNIEURS CONSEILS EN BREVETS SA (2001 Neuchâtel, CH)

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