Constant-force device for indirect-second watches
AssigneeRichemont International SA
InventorsJean-François Mojon, Kilian Eisenegger
Life of this patent
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Abstract
The present invention refers to a constant-force device suitable for being integrated into a movement of watches, particularly wrist watches, with an indirect-second mechanism having an intermediate second pinion (14) driven by a second wheel (9) of the movement, and an indirect-second wheel (15). The constant-force device comprises a tensioning module (4, 5, 6, 7, 8), a cam (2), a lever (11), and a stop wheel (13). The stop wheel (13) of the constant-force device is mounted on the intermediate second pinion (14) of the indirect-second mechanism.
Claims11
Constant-force device for a watch movement, comprising:
- an intermediate second pinion (14) configured to drive an indirect-second wheel (15);
- a second wheel engaged with the intermediate second pinion (14) to drive the intermediate second pinion (14);
- a tensioning module (4, 5, 6, 7, 8);
- a cam (2) operatively connected to the tensioning module;
- a lever (11) cooperating with the cam (2);
- and
- a stop wheel (13) arranged on the intermediate second pinion (14) and engaging with the lever.
Movement of a watch, comprising:
- an indirect-second wheel shaft (16);
- an indirect-second wheel (15) carried on the indirect-second wheel shaft (16);
- an intermediate second pinion (14) engagable with the indirect-second wheel (15) for driving the indirect-second wheel (15);
- a second wheel (9) engaged with the intermediate second pinion (14) to drive the intermediate second pinion (14);
- a tensioning module (4, 5, 6, 7, 8);
- a cam (2) operatively connected to the tensioning module;
- a lever (11) cooperating with the cam (2);
- and
- a stop wheel (13) arranged on the intermediate second pinion (14) and engaging with the lever.
Constant-force device for a watch movement, comprising:
- a second-wheel pinion (10);
- an intermediate second wheel (9) carried on the second-wheel pinion (10);
- an intermediate second pinion (14),
- the intermediate second wheel (9) engaging with a pinion on the intermediate second pinion, the intermediate second pinion (14) being driven by the intermediate second wheel (9);
- a stop wheel (13) arranged on the intermediate second pinion (14);
- a tensioning module (4, 5, 6, 7, 8);
- a cam
- a lever (11) mounted on the second wheel pinion (10) and cooperating with the cam,
- the stop wheel (13) engaging with the lever (11).
Dependencies are inferred from the claim text.