Timepiece assortment using an amorphous metal alloy

Patent metadata

Field	Value
Publication number	US-2017192390-A1
Application number	US-201715463330-A
Country	US
Kind code	A1
Filing date	Mar 20, 2017
Priority date	Apr 7, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

The invention relates to a timepiece assortment including a timepiece component fixed to an arbor with the aid of a fixing element. According to the invention, the fixing element is made of at least partially amorphous metal alloy, is secured to the timepiece component by partial insertion and includes a hole into which the arbor is driven.

First claim

What is claimed is:

1 . A timepiece assortment that is assembled by the following steps:
a) separately manufacturing a timepiece component and a fixing element, the fixing element being manufactured from an at least partially amorphous metal alloy; b) partially inserting at least one portion of the timepiece component into the thickness of the fixing element heated to between its vitreous transition temperature and its crystallisation temperature in order to form a timepiece component fixing element assembly; c) driving an arbor into a hole of the fixing element to form the timepiece assortment so as to leave a gap between timepiece component and the arbor, the timepiece assortment comprising: the timepiece component fixed to the arbor with the aid of the fixing element including the hole into which the arbor is driven, wherein the fixing element is made of an at least partially amorphous metal alloy and is secured to the timepiece component by partial insertion of one into the other, and wherein the timepiece component includes an opening which extends around the hole of the fixing element and has a larger cross-section so as to leave a gap between the wall of the opening and the arbor.

2 . The timepiece assortment according to claim 1 , wherein the timepiece component is mounted against a shoulder of the arbor.

3 . The timepiece assortment according to claim 1 , wherein the fixing element is mounted against a shoulder of the arbor.

4 . The timepiece assortment according to claim 1 , wherein at least one fifth of the height of the timepiece component is covered by the fixing element.

5 . The timepiece assortment according to claim 1 , wherein the timepiece component includes at least one recess for increasing the contact surface with the fixing element.

6 . A timepiece assortment that is assembled by the following steps:
a′) separately manufacturing a timepiece component, a fixing element made of an at least partially amorphous metal alloy and a driving-in member provided with a hole; b′) partially inserting at least one portion of the timepiece component and of the driving-in member into the thickness of the fixing element heated to between its vitreous transition temperature and its crystallisation temperature to form a timepiece component fixing element driving-in member assembly; and c′) driving an arbor into the hole in the driving-in member to form the timepiece assortment so as to leave a gap between timepiece component and the arbor, the timepiece assortment comprising: the timepiece component fixed to the arbor with the aid of the fixing element and the driving-in member including the hole into which the arbor is driven, wherein the fixing element is made of an at least partially amorphous metal alloy, is respectively secured to the timepiece component and to the driving-in member by partial insertion of one into the other and wherein the timepiece component includes an opening which extends around the hole in the driving-in member and has a larger cross-section so as to leave a gap between the wall of the opening and the arbor.

7 . The timepiece assortment according to claim 6 , wherein the timepiece component is mounted against a shoulder of the arbor.

8 . The timepiece assortment according to claim 6 , wherein the driving-in member is mounted against a shoulder of the arbor.

9 . The timepiece assortment according to claim 6 , wherein at least one fifth of the height of the timepiece component and of the height of the driving-in member are covered by the fixing element.

10 . The timepiece assortment according to claim 6 , wherein the timepiece component and/or the timepiece component include at least one recess for increasing the contact surface with the fixing element.

11 . The timepiece assortment according to claim 6 , wherein the driving-in member is formed of a metal or a metal alloy.

12 . The timepiece assortment according to claim 1 , wherein the timepiece component includes doped or undoped single crystal silicon, doped or undoped polycrystalline silicon, silicon oxide, quartz, silica, single crystal corundum, polycrystalline corundum, alumina, ruby, silicon nitride, silicon carbide.

13 . The timepiece assortment according to claim 12 , wherein the timepiece component includes at least a partial coating of silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon.

14 . The timepiece assortment according to claim 1 , wherein the fixing element is formed of a magnesium-based, titanium-based, zirconium-based, iron-based, cobalt-based, gold-based, palladium-based or platinum-based alloy.

15 . The timepiece assortment according to claim 14 , wherein the fixing element is formed of an alloy with an at least partially amorphous structure of the ZrTiCuNiBe, PdCuNiP or PtCuNiP type.

16 . The timepiece assortment according to claim 1 , wherein the assortment forms all or part of a gear train.

17 . The timepiece assortment according to claim 1 , wherein the assortment forms all or part of an escapement system.

18 . The timepiece assortment according to claim 1 , wherein the assortment forms all or part of a resonator.

19 . The timepiece assortment according to claim 6 , wherein the timepiece component includes doped or undoped single crystal silicon, doped or undoped polycrystalline silicon, silicon oxide, quartz, silica, single crystal corundum, polycrystalline corundum, alumina, ruby, silicon nitride, silicon carbide.

20 . The timepiece assortment according to claim 19 , wherein the timepiece component includes at least a partial coating of silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon.

21 . The timepiece assortment according to claim 6 , wherein the fixing element is formed of a magnesium-based, titanium-based, zirconium-based, iron-based, cobalt-based, gold-based, palladium-based or platinum-based alloy.

22 . The timepiece assortment according to claim 21 , wherein the fixing element is formed of an alloy with an at least partially amorphous structure of the ZrTiCuNiBe, PdCuNiP or PtCuNiP type.

23 . The timepiece assortment according to claim 6 , wherein the assortment forms all or part of a gear train.

24 . The timepiece assortment according to claim 6 , wherein the assortment forms all or part of an escapement system.

25 . The timepiece assortment according to claim 6 , wherein the assortment forms all or part of a resonator.

Assignees

• Nivarox Far Sa

Inventors

• Dubois Philippe
• Winkler Yves
• Mallet Daniel
• Charbon Christian

Classifications

• G04B15/14

  Component parts or constructional details, e.g. construction of the lever or the escape wheel {(assembly and manufacture of the spring G04B1/145; assembly and manufacture of components, e.g. pinions, spindles G04B13/02; lubrication of clockwork bearings G04B31/008; oils for clockwork bearings in general G04B31/08)} · CPC title

• G04B13/026 Primary

  Physics · mapped topic

• G04B13/022 Primary

  with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like · CPC title

• G04B1/16

  Barrels; Arbors; Barrel axles (arrangements facilitating the removal of the mainspring G04B33/14) · CPC title

• Y10T29/49581

  having arbor, pinion, or balance · CPC title