Mechanical adjustment of the shake of a timepiece wheel set
AssigneeETA SA Manufacture Horlogere Suisse
InventorOlivier MERTENAT
Life of this patent
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Abstract
Timepiece movement including a main plate and a bar holding a wheel set in a reference position, and a means of adjusting the height of this bar in relation to the plate in the direction of the axis of rotation of the wheel set, at a first point remote from the reference position. This height adjustment means includes a screw or a worm rotatably movable about an oblique control axis in relation to the axis of rotation, and a cone or a curved surface for transforming motion between this screw or worm and a pusher movable in a parallel direction (D9) to the axis of rotation. Watch including a movement of this type.
Claims24
A timepiece movement including at least a main plate and a bar for holding a wheel set on both sides, a bottom pivot of which occupies a reference position on said plate, wherein said movement includes a means of adjusting the height of at least a first point of said bar in relation to said plate in the direction of the axis of rotation of said wheel set, said first point being, in projection onto a reference plane of said plate orthogonal to said axis of rotation of said wheel set, at a first non-zero distance from said reference position, wherein said height adjustment means includes control means rotatably movable about an oblique control axis relative to said axis of rotation of said wheel set, and includes a means of transforming motion between said control means and a pusher movable in a parallel direction to said axis of rotation of said wheel set.
Dependencies are inferred from the claim text.