METHOD OF MANUFACTURING A TIMEPIECE SHAFT

    公开(公告)号:US20220373977A1

    公开(公告)日:2022-11-24

    申请号:US17877578

    申请日:2022-07-29

    申请人: ROLEX SA

    发明人: Vannina Linck

    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.

    METHOD FOR MANUFACTURING A TIMEPIECE BEARING

    公开(公告)号:US20220291634A1

    公开(公告)日:2022-09-15

    申请号:US17634018

    申请日:2020-08-12

    申请人: ROLEX SA

    IPC分类号: G04B31/06 G04B31/04

    摘要: A method for manufacturing a pivot bearing (1) for the pivoting of a timepiece component (2), in particular a pivot stone, includes:—boring (E1) a hole (10a) in a bearing blank (1a) along an axis (A1) intended for the pivoting of a timepiece component (2), this hole (10a) forming a start point (13a) of a first pivot zone (13) of the bearing (1), then—laser engraving (E2), in the blank (1a), in particular using a femtosecond laser, a second clearance zone (14) of the bearing (1), juxtaposed with the start point (13a) of a first pivot zone (13), this second clearance zone (14) of the bearing (1) opening at a first face (11a) of the bearing (1) blank (1a), then—removing material by wear (E3), in particular by olive-cutting, at the start point (13a) of the first pivot zone (13) of the bearing (1) and a boundary zone (14a) between the start point (13a) and the second clearance zone (14) of the bearing (1) in order to form a first pivot zone (13) and a second clearance zone (14) that are juxtaposed, connected to each other by a rounded connection.

    TIMEPIECE SHAFT
    7.
    发明申请
    TIMEPIECE SHAFT 审中-公开

    公开(公告)号:US20170357213A1

    公开(公告)日:2017-12-14

    申请号:US15618859

    申请日:2017-06-09

    申请人: ROLEX SA

    发明人: Vannina Linck

    IPC分类号: G04B17/34

    摘要: A timepiece shaft (1), especially a balance shaft (1), comprising a first 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