Timepiece component with a part having an improved welding surface

Patent metadata

Field	Value
Publication number	US-10429796-B2
Application number	US-201615171032-A
Country	US
Kind code	B2
Filing date	Jun 2, 2016
Priority date	Jun 16, 2015
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

The invention relates to a timepiece component with a part including at least one face with a geometry capable of ensuring that the part is fitted in an isostatic configuration onto a member to improve the welding thereof.

First claim

What is claimed is:

1. A timepiece component comprising:
a member provided with a substantially horizontal surface and a substantially vertical surface; and
a part fitted and welded onto the member,
wherein the part includes at least one face with a substantially rectilinear wall adjacent to an oblique wall to ensure that the part is fitted in an isostatic configuration to improve the welding thereof onto the member,
wherein the oblique wall is formed on the part to extend between the substantially horizontal surface and the substantially vertical surface when the part is fitted onto the member, and
wherein the member is part of a balance staff and the part is part of a balance spring.

2. The timepiece component according to claim 1 , wherein the at least one face of the part is fitted onto the substantially vertical surface of the member.

3. The timepiece component according to claim 1 , wherein the at least one face of the part is fitted onto the substantially horizontal surface of the member.

4. The timepiece component according to claim 1 , wherein the part is made from silicon or from ceramic.

5. The timepiece component according to claim 1 , wherein the part also includes at least a partial coating of metal, silicon oxide, silicon nitride, silicon carbide or an allotrope of carbon.

6. The timepiece component according to claim 1 , wherein the member includes an iron alloy, a copper alloy, nickel or an alloy thereof, titanium or an alloy thereof, gold or an alloy thereof, silver or an alloy thereof, platinum or an alloy thereof, ruthenium or an alloy thereof, rhodium or an alloy thereof, or palladium or an alloy thereof.

7. The timepiece component according to claim 1 , wherein a shaft of the balance staff includes the substantially vertical surface and a shoulder of the balance staff includes the substantially horizontal surface.

8. The timepiece component according to claim 1 , wherein a collet of the balance spring includes the substantially rectilinear wall and the oblique wall.

9. A timepiece component comprising:
a member made of a single homogeneous material and provided with a substantially horizontal surface and a substantially vertical surface; and
a part fitted and welded onto the member, the part including a substantially horizontal wall and a substantially vertical wall between which an oblique wall extends to ensure that the part is fitted in an isostatic configuration,
wherein, when the part is fitted onto the member, the substantially horizontal wall and the substantially vertical wall are configured to abut the substantially horizontal surface and the substantially vertical surface respectively, and
wherein an enclosed space is bounded at least in part by the oblique wall, the substantially horizontal surface and the substantially vertical surface.

10. The timepiece component according to claim 9 , when the part is fitted onto the member, the substantially horizontal wall and the substantially vertical wall are welded to the substantially horizontal surface and the substantially vertical surface respectively.

11. A timepiece component comprising:
a monolithic member provided with a substantially horizontal surface and a substantially vertical surface; and
a part fitted and welded onto the member, the part including a substantially horizontal wall and a substantially vertical wall between which an oblique wall extends to ensure that the part is fitted in an isostatic configuration,
wherein, when the part is fitted onto the member, the substantially horizontal wall and the substantially vertical wall are configured to abut the substantially horizontal surface and the substantially vertical surface respectively, and
wherein an enclosed space is bounded at least in part by the oblique wall, the substantially horizontal surface and the substantially vertical surface.

12. The timepiece component according to claim 11 , when the part is fitted onto the member, the substantially horizontal wall and the substantially vertical wall are welded to the substantially horizontal surface and the substantially vertical surface respectively.

Assignees

• Nivarox Sa

Inventors

• Cusin Pierre
• Cretenet Davy
• Stranczl Marc
• Garret Raphael

Classifications

• B23K26/352

  for surface treatment · CPC title

• G04B17/325

  for fastening the hairspring in a fixed position, e.g. using a block · CPC title

• G04B17/34 Primary

  for fastening the hairspring onto the balance · CPC title

• G04D3/0074 Primary

  for treatment of the material, e.g. surface treatment · CPC title

• G04B31/004

  characterised by the material used · CPC title