Clockwork movement
US7404669B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2006 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Apr 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B27/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The clockwork movement comprises a crown (12) connected with at least one element of the movement through a connecting organ. It is provided with a selection device (13) that includes a blocking device (15) provided with two blocking spring blades (26, 27) cooperating with a set of teeth (28) of crown (12). This blocking device allows rotation of the crown to be blocked in a first direction, and to be permitted in a second direction, in a predetermined position of a control lever (30) selectively acting on the first or second of these spring blades (26, 27) through a sector (31). When this lever (30) is turned into a second position, rotation of the crown is permitted in the first direction but blocked in the second direction. One thus obtains a movement in which the direction of rotation of crown (12) is selected by the user by his prior action on selection device (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.