Timepiece resonator mechanism provided with a translation table

Patent metadata

Field	Value
Publication number	US-12117773-B2
Application number	US-202117525329-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	Dec 14, 2020
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

The invention relates to a rotary resonator mechanism (1) comprising an oscillating mass (2), a flexible guide comprising at least two flexible blades (4) connecting a stationary support (3) to the oscillating mass (2), the resonator mechanism (1) extending substantially in the same plane to allow the oscillating mass to perform a rotary movement around a virtual pivot, the flexible guide (1) extending along a main axis of symmetry (14), characterised in that the mechanism (1) comprises a translation table (5) arranged between the flexible guide and the oscillating mass (2), the translation table (5) being joined to the flexible blades (4) and/or to the oscillating mass (2).The invention also relates to a horological movement comprising such a resonator (1).

First claim

The invention claimed is:

1. A rotary resonator mechanism ( 1 , 10 , 20 ) comprising an oscillating mass ( 2 ), a flexible guide comprising at least two flexible blades ( 4 ) that cross each other at a crossing, the flexible blades connecting a stationary support ( 3 ) to the oscillating mass ( 2 ), the resonator mechanism ( 1 , 10 , 20 ) extending substantially in the same plane to allow the oscillating mass to perform a rotary movement around a virtual pivot, the flexible guide ( 1 , 10 , 20 ) extending along a main axis of symmetry ( 14 ) extending from the stationary support, through the crossing of the flexible blades and to a rigid part of a translation table at a rest position of the mechanism, wherein the mechanism ( 1 , 10 , 20 ) comprises the translation table ( 5 , 15 ) arranged in series between the flexible guide and the oscillating mass ( 2 ), the translation table ( 5 , 15 ) being joined to the flexible blades ( 4 ) and to the oscillating mass ( 2 ).

2. The resonator mechanism according to claim 1 , wherein the translation table ( 5 ) is arranged to allow displacement along the main axis of symmetry ( 14 ) of the flexible guide in the rest position of the mechanism ( 1 , 10 , 20 ).

3. The resonator mechanism according to claim 1 , wherein the translation table ( 15 ) is arranged to allow displacement in a direction substantially perpendicular to the main axis of symmetry ( 14 ) of the flexible guide in the rest position of the mechanism ( 1 , 10 , 20 ).

4. The resonator mechanism according to claim 1 , wherein the translation table ( 5 , 15 ) comprises at least two secondary flexible blades ( 7 , 17 ) and the rigid part ( 6 , 16 ), the secondary flexible blades ( 7 , 17 ) being joined at one end to the rigid part ( 6 , 16 ), and at another end to the oscillating mass ( 2 ), the blades ( 4 ) of the flexible guide being connected to the rigid part ( 6 , 16 ) of the translation table.

5. The resonator mechanism according to claim 4 , wherein the secondary flexible blades ( 7 , 17 ) are substantially parallel.

6. The resonator mechanism according to claim 1 , further comprising a second translation table ( 25 ) arranged in series between the first translation table ( 5 ) and the flexible guide.

7. The resonator mechanism according to claim 6 , wherein the second translation table ( 25 ) comprises at least two tertiary flexible blades ( 27 ) and a second rigid part ( 26 ), the tertiary flexible blades ( 27 ) being joined at one end to the rigid part ( 6 ) of the first translation table ( 5 ), and at another end to the second rigid part ( 26 ), the two blades ( 4 ) of the flexible guide being connected to the second rigid part ( 26 ) of the second translation table.

8. A horological movement comprising a resonator mechanism ( 1 , 10 , 20 ) according to claim 1 .

Assignees

• Swatch Group Res & Dev Ltd

Inventors

• Kahrobaiyan Mohammad Hussein

Classifications

• G04B17/10

  Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane {(electrically driven torsion pendulum G04C3/033)} · CPC title

• G04B17/28

  for the effect of imbalance of the weights, e.g. tourbillon · CPC title

• G04B33/00

  Calibers {(disposition of components of the automatic winding mechanism in relation to the clockwork G04B5/18)} · CPC title

• G04B17/045 Primary

  with oscillating blade springs (mechanical oscillations maintained by electro-magnetic means, e.g. tuning forks G04C3/10) · CPC title

• G04B17/02 Primary

  Oscillators acting by gravity, e.g. pendulum swinging in a plane {(setting the pendulum to the required length G04B18/003; temperature compensation for pendulums G04B17/225; bearings in general, e.g. knife-edge G04B31/00; clocks fitted in pendulums G04B45/043; imitation pendulums driven by the clock mechanism G04B45/0046, G04B45/0053; pendulum ornamentation G04B45/0061; contacts actuated by a pendulum G04C13/065; measurement of force with a pendulum G01V7/12)} · CPC title