Horological movement with automatic winding having time-displaying hands located on the same side as the rotor
AssigneeETA SA Manufacture Horlogere Suisse
InventorsChristophe Cattin, Yassine Rachdi, Laurent Kaelin, Dominique Boizard
Life of this patent
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Abstract
A horological movement with automatic winding, including a plate, a barrel, a cannon-pinion including a minute pipe which supports a minute hand, an hour wheel set including an hour pipe which supports an hour hand, an oscillating weight, arranged on the same side of the plate as the cannon-pinion and the hour wheel set, which includes a central hub, a rim, a heavy sector, a lifting arbor rigidly connected to the central hub and about which the minute pipe and the hour pipe are mounted coaxially, the minute hand and the hour hand being located between the plate and the rim of the rotor.
Claims12
A horological movement with automatic winding, which comprises:
- a plate,
- a barrel mounted such that it rotates relative to the plate and supporting a primary toothed wheel,
- a cannon-pinion mounted such that it rotates relative to the plate about a central axis and meshing with the primary toothed wheel of the barrel by way of a motion-work train, said cannon-pinion comprising a minute pipe which supports a minute hand,
- an hour wheel set mounted such that it rotates relative to the plate about said central axis and meshing with the cannon-pinion, said hour wheel set comprising an hour pipe which supports an hour hand,
- an oscillating weight in the form of a rotor mounted such that it rotates relative to the plate about the central axis, on the same side of the plate as the cannon-pinion and the hour wheel set, said rotor comprising:
- a central hub that meshes with the barrel,
- a rim rigidly connected to the central hub,
- a heavy annular sector which is rigidly connected to the rim;
- wherein said horological movement comprises a lifting arbor rigidly connected to the central hub and via which this hub is mounted such that it rotates relative to the plate;
- and wherein the minute pipe and the hour pipe are mounted coaxially about the lifting arbor that passes therethrough, the minute hand and the hour hand being located between the plate and the rim of the rotor.
Dependencies are inferred from the claim text.