Timepiece with a striking mechanism comprising a single barrel
US7322742B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2007 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Apr 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B21/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention proposes a timepiece including a motion work (12) which drives analogue display means (14) and a strike train (16) which drives a striking mechanism (18), wherein the motion work (12) is driven in rotation by a barrel (20) including a spring, a toothing which meshes with the motion work (12), and a winding ratchet (38) coaxial to the barrel (20), the winding ratchet (38) being secured in rotation to the drive arbour (26) of the barrel (20), and wherein a winding member (44) is provided to mesh with the winding ratchet (38) in order to wind the barrel spring (24), characterized in that the winding ratchet (38) drives the strike train (16) in rotation via an intermediate wheel set (45) whose axis (A2) is shifted relative to the axis (A1) of the barrel (20), and in that the intermediate wheel set (45) includes a click device (47) for uncoupling the winding ratchet (38) relative to the strike train (16) during the winding phase of the spring (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.