Variable-geometry timepiece display mechanism with resilient hand
US11886147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2019 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Mar 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.