- Patent Title: Variable-geometry timepiece display mechanism with resilient hand
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Application No.: US17051617Application Date: 2019-07-24
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Publication No.: US11886147B2Publication Date: 2024-01-30
- Inventor: Marc Stranczl , Jan Pittet
- Applicant: Montres Breguet S.A.
- Applicant Address: CH L'Abbaye
- Assignee: Montres Breguet S.A.
- Current Assignee: Montres Breguet S.A.
- Current Assignee Address: CH L'Abbaye
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP 186552 2018.07.31 EP 185917 2019.07.12
- International Application: PCT/EP2019/069946 2019.07.24
- International Announcement: WO2020/025423A 2020.02.06
- Date entered country: 2020-10-29
- Main IPC: G04B19/02
- IPC: G04B19/02 ; G04B19/04 ; G04B13/00 ; G04B45/00 ; G04B9/00 ; G04B13/02 ; G04B19/08

Abstract:
A variable timepiece display mechanism includes a resilient hand with a drive pipe integral with a single-piece flexible strip including flexible segments joined at tips, a first segment thereof extends between the first pipe and a first tip. The mechanism also includes a driver for driving the pivoting of the pipe, and a stressor for stressing the first flexible segment in order to vary the position of the first tip relative to the output axis, as a function of the forces applied to the flexible strip. The drier and/or the stressor includes a first shaped gear train and/or a second shaped gear train in order to accelerate, stabilize the speed of, or slow at least the pipe over a part of the angular travel thereof.
Public/Granted literature
- US20210223740A1 VARIABLE-GEOMETRY TIMEPIECE DISPLAY MECHANISM WITH RESILIENT HAND Public/Granted day:2021-07-22
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