Balance clearance adjustment fixing device

Patent metadata

Field	Value
Publication number	US-11809138-B2
Application number	US-202117476994-A
Country	US
Kind code	B2
Filing date	Sep 16, 2021
Priority date	Nov 27, 2020
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

A fixing device for adjusting the clearance of a balance. At least one fixing device including at least one stud holder, at least one bearing body, at least one support member and at least one holding member. At least one bearing body is configured to move relative to at least one stud holder so as to fix the adjustment of the clearance of the balance and at least one support member is configured to press at least one bearing body against at least one stud holder before being held by at least one holding member.

First claim

The invention claimed is:

1. A fixing device for adjusting a clearance of a balance, said fixing device comprising:
a stud holder;
a bearing body configured to move relative to said stud holder;
a support member configured to press said bearing body against said stud holder; and
a holding member configured to hold said support member pressed against said bearing body so as to fix the adjustment of said clearance of said balance,
wherein said bearing body comprises a tapping or a thread disposed on an outer periphery of said bearing body and said stud holder comprises a thread or a tapping disposed on an inner periphery of said stud holder.

2. The fixing device according to claim 1 , which comprises a balance bridge configured to cooperate with said holding member.

3. The fixing device according to claim 1 , wherein said bearing body is configured to be comprised between said stud holder and said support member.

4. The fixing device according to claim 1 , wherein said support member comprises a first support surface configured to press said bearing body against said stud holder and a second support surface configured to be in contact with said holding member.

Assignees

• Eta Sa Mft Horlogere Suisse

Inventors

• Saglini Julien
• Courvoisier Raphaël

Classifications

• G04B18/06 Primary

  by setting the collet or the stud of a hairspring · CPC title

• G04B18/02 Primary

  Regulator {or adjustment} devices; Indexing devices {, e.g. raquettes} · CPC title

• G04B18/026

  Locking the hair spring in the indexing device, e.g. goupille of the raquette (hairsprings G04B17/066; locking the mainspring on the axle G04B1/18) · CPC title

• G04B18/00 Primary

  Mechanisms for setting frequency {(for stabilising frequency G04B17/00)} · CPC title

• G04D7/082 Primary

  for balancing · CPC title