- 专利标题: METHOD OF MANUFACTURING A TIMEPIECE SHAFT
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申请号: US17877578申请日: 2022-07-29
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公开(公告)号: US20220373977A1公开(公告)日: 2022-11-24
- 发明人: Vannina Linck
- 申请人: ROLEX SA
- 申请人地址: CH Geneva
- 专利权人: ROLEX SA
- 当前专利权人: ROLEX SA
- 当前专利权人地址: CH Geneva
- 优先权: EP16174244.0 20160613
- 主分类号: G04D3/00
- IPC分类号: G04D3/00 ; G04B13/02 ; G04B17/06
摘要:
The method of manufacturing a timepiece shaft (1) includes grinding a ceramic piece, especially to form a balance shaft (1), having a functional portion (2a; 2b) including at least one part (221a; 221b) of a pivot-shank (22a; 22b) and/or at least one part (211a; 211b) of a pivot (21a; 21b), the first functional portion being made of ceramic and a first outer diameter (D1) of the first functional portion being less than 0.5 mm, or less than 0.4 mm, or less than 0.2 mm, or less than 0.1 mm.
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