US 10,927,824 B2Granted

Mechanical movement with rotary resonator, which is isochronous and positionally insensitive

AssigneeETA SA Manufacture Horlogere Suisse

InventorsPascal Winkler, Jean-Luc Helfer, Gianni Di Domenico, Yves-Alain Cosandier

Life of this patent

Estimating the term…

Loading patent…

Abstract

A mechanical horological movement includes at least one energy storage to drive a gear train of which an output mobile component pivots about a drive axis and including a rotary resonator which has at least one central mobile component to pivot about a central axis and including an input mobile component to collaborate with the output mobile component, this rotary resonator includes a plurality of inertial elements that each pivot with respect to the central mobile component about a secondary axis perpendicular to the central axis and each returned towards a rest position, relative with respect to the central mobile component, by at least one elastic return element, and each secondary axis passes through the centre of mass of the inertial element associated with it.

Claims24

Dependent claims

A mechanical horological movement comprising:

at least one energy storage means configured to drive a gear train including an output mobile component that is configured to pivot about a drive axis and comprising a rotary resonator that comprises at least one central mobile component configured to pivot about a central axis and comprising an input mobile component designed to collaborate with the output mobile component,
wherein the rotary resonator comprises at least one inertial element configured to pivot with respect to the central mobile component about a secondary axis perpendicular to the central axis, and returned towards a rest position, relative with respect to the said central mobile component, by at least one elastic return element, and
wherein the secondary axis passes through the centre of mass of the inertial element associated with the secondary axis.

Dependencies are inferred from the claim text.

Facts

Application: 16/039,828Filed 19 Jul 2018
Priority: EP 1718321126 Jul 2017
Published: US 2019/0032644 A131 Jan 2019
Granted: 23 Feb 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G04B 17/26
Compensation of mechanisms for stabilising frequency: for the effect of variations of the impulses
G04B 17/28
Compensation of mechanisms for stabilising frequency: for the effect of imbalance of the weights, e.g. tourbillon
G04B 17/30
Mechanisms for stabilising frequency: rotating governors, e.g. centrifugal governors, fan governors
G04B 17/045
Oscillators acting by spring tension: with oscillating blade springs