Indicator device for watchmaking
AssigneeLa Vallee S.R.L.
InventorLuciano SASSO
Life of this patent
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Abstract
The invention relates to an indicator device (D) for watchmaking, in which a drive toothed wheel (3) rotates a driven programme wheel (2) which is configured substantially as a circular crown with an external toothing (20) and an internal toothing (21). The latter meshes with an eccentric internal toothed wheel (1), whose cycloidal rotary movement with a suitable transmission ratio, allows the information given on the programme wheel (2) to be indicated. The device is suitable for making perpetual calendars of the clocks.
Claims13
-12. (canceled)
An indicator device for watchmaking comprises:
- a toothed drive wheel;
- a programme wheel coupled with the toothed drive wheel, the programme wheel configured substantially as a circular crown comprising an external toothing and an internal toothing;
- and
- an internal toothed wheel engaged cycloidally with the internal toothing of the programme wheel, wherein information shown on the programme wheel is associated with a position of the internal toothed wheel.
A clock comprising a perpetual calendar, and at least one device according to claim 1.
Dependencies are inferred from the claim text.