Automatic winding device for a watch movement
AssigneeA. Schild S.A.
InventorsRoland Zaugg, Josef Fluck
Life of this patent
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Abstract
An automatic winding device for a watch movement includes two frame elements secured to one another to form a unit. The elements support between them a gear train, a pinion, a winding weight integral with the pinion, a lever, a wheel borne by the lever and meshing with the pinion, and a click cooperating with a gear of the gear train. A hairpin strip-spring has one end which acts on the click and another end which acts on the lever. One of the frame elements comprises an elongated recess and the other of the frame elements comprises a notch having edges partially covering the recess. The hairpin strip-spring is inserted in the recess through the notch. The lever and the click are not subjected to the action of the hairpin strip-spring assembly.
Claims8
An automatic winding device for a watch movement, said device comprising two frame elements secured to one another, forming a unit, and supporting between them a gear-train, a pinion, a winding weight integral with said pinion, a lever, a wheel borne by said lever and meshing with said pinion, a click cooperating with a gear of said gear-train, and a strip-spring having an end acting upon said click and another end acting upon said lever, wherein one said frame element comprises an elongated recess and the other said frame element comprises a notch having edges partially covering said recess, said strip-spring being a hairpin strip-spring adapted for insertion in said recess through said notch.
Dependencies are inferred from the claim text.