Rigid horological component for an oscillator mechanism or for an escapement mechanism and horological movement including such a component

Patent metadata

Field	Value
Publication number	US-12013663-B2
Application number	US-202017113702-A
Country	US
Kind code	B2
Filing date	Dec 7, 2020
Priority date	Dec 20, 2019
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A rigid horological component ( 6, 7, 8 ) for an oscillator mechanism or for an escapement mechanism of a horological movement, the component extending along a principal plane (P) and including at least a part made of a composite material ( 1 ), the composite material ( 1 ) including a matrix ( 2 ) and a multitude of nanotubes or nanowires ( 3 ) distributed in the matrix ( 2 ), the nanotubes or nanowires ( 3 ) being juxtaposed and disposed substantially parallel with an axis (A) substantially perpendicular to the plane (P) of the component, the matrix ( 2 ) includes a rigid material ( 4 ) to fill the interstices and join the nanotubes or nanowires ( 3 ) to one another, the material ( 4 ) having rigid mechanical properties to block the elastic deformation of the component, the rigid material ( 4 ) comprised in the component having a Young's modulus greater than 2 GPa.

First claim

The invention claimed is:

1. A rigid horological component for an oscillator mechanism or for an escapement mechanism of a horological movement, the component extending along a principal plane and including at least a part made of a composite material, wherein the composite material comprises a matrix and a multitude of nanowires distributed in the matrix, the nanowires being juxtaposed and disposed substantially parallel with an axis substantially perpendicular to the plane of the component, the matrix including a rigid material to fill the interstices and join the nanowires to one another, the rigid material having rigid mechanical properties to block the elastic deformation of the component, the rigid material comprised in the component having a Young's modulus greater than 2 GPa.

2. The component according to claim 1 , wherein the nanowires are made using an element to be selected from the following list: gold, silicon, boron nitride, gallium nitride, silicon oxide, silicon nitride, zinc oxide, gallium arsenide, tungsten sulphide, silver, copper, manganese arsenide, indium arsenide, carbon, diamond.

3. The component according to claim 1 , wherein the nanowires have a diameter within a range ranging from 2 to 50 nm.

4. The component according to claim 1 , wherein the nanowires have a length within a range ranging from 100 to 500 microns.

5. The component according to claim 1 , wherein the rigid material is made using an element to be selected from the following list: tungsten, organic materials such as parylene, hexagonal boron nitride, Al2O3 type monocrystalline ruby, diamond, tungsten or molybdenum disulphides, graphite, lead, silicon carbide, nickel, indium phosphide, titanium oxide, silicon, silicon oxide, carbon.

6. The component according to claim 1 , wherein the component is an escapement mechanism pallet assembly.

7. The component according to claim 1 , wherein the component is an escapement mechanism wheel.

8. The component according to claim 1 , wherein the component is a horological movement train.

9. The component according to claim 1 , wherein the component is an oscillator mechanism balance.

10. A horological movement, wherein it comprises a rigid horological component according to claim 1 .

11. The component according to claim 3 , wherein the nanowires have a diameter within a range ranging from 3 to 15 nm.

12. The component according to claim 11 , wherein the nanowires have a diameter within a range ranging from 5 to 10 nm.

13. The component according to claim 4 , wherein the nanowires have a length within a range ranging from 100 to 300 microns.

14. The component according to claim 13 , wherein the nanowires have a length within a range ranging from 150 to 200 microns.

Assignees

• Nivarox Far Sa

Inventors

• Cusin Pierre
• Charbon Christian

Classifications

• G04B17/32

  Component parts or constructional details, e.g. collet, stud {, virole or piton} · CPC title

• G04B13/00

  Gearwork {(gearwork for driving the hands G04B19/02; calibers G04B33/00; dispositions and components for transmission in general F16H)} · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• G04B17/04

  Oscillators acting by spring tension · CPC title

• G04B15/06

  Free escapements · CPC title