Winding and time-setting control device for a timepiece movement
AssigneeMontres Breguet S.A.
InventorJan Pittet
Life of this patent
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Abstract
A winding and time-setting control device for a timepiece movement including, connected in rotation, a movement stem secured in rotation to a sliding pinion driven in translation by a lever between winding and time-setting positions, and a control stem sliding between winding and time-setting control positions, actuating a pull-out mechanism. The mechanism includes a first pull-out piece including, about a first axis, an arm movable with the control stem, and a pivot cooperating with a complementary pivot of a second pull-out piece driving the lever and including an arm movable inside a housing in the movement stem. A timepiece incorporating a device of this type is also disclosed.
Claims16
A winding and time-setting control device for a timepiece movement,
- wherein the timepiece movement includes
- (i) a movement stem that rotates about an axis in a movement plate;
- (ii) a sliding pinion, wherein the movement stem is secured in rotation to the sliding pinion;
- and
- (iii) a sliding pinion lever, wherein the sliding pinion is axially movable via an action of the sliding pinion lever along the axis in the movement plate,
- wherein the sliding pinion lever is movable between a winding position and a time-setting position,
- wherein while in the winding position, the sliding pinion is arranged so as to cooperate with a winding mechanism to set the winding mechanism in rotation,
- wherein while in the time-setting position, the sliding pinion is arranged so as to cooperate with a time-setting mechanism to set the time-setting mechanism in rotation,
- the winding and time-setting control device comprising:
- (a) a control stem, wherein the control stem is connected in rotation to the movement stem by a transmission means and shifted relative to the movement stem, wherein the control stem rotates about a longitudinal axis and is axially slidable at least between a winding control position and a time-setting control position;
- (b) a manual control crown, wherein the control stem is arranged for cooperating with the manual control crown;
- and
- (c) a first pull-out mechanism, wherein the sliding pinion lever is part of the first pull-out mechanism, and wherein the first pull-out mechanism is actuated by sliding the control stem between the winding control position and the time-setting control position, wherein the sliding pinion meshes with the winding mechanism in the winding position when the control stem is in the winding control position, or with the time-setting mechanism when the control stem is in the time-setting control position, wherein the first pull-out mechanism includes
- (i) a first lever, wherein the first lever is formed by a first pull-out piece that has a first pull-out piece arm and a first pivot;
- (ii) a first pivoting axis, wherein the first pivoting axis has a first side and a second side, and wherein the first pull-out piece arm moves in translation via the effect of a translation of the control stem, and wherein the first pull-out piece arm moves either on the first side of the second side of the first pivoting axis;
- (iii) a second lever, wherein the second lever is formed by a second pull-out piece that has a second pull-out piece arm and a second pivot, wherein the second pull-out arm is movable inside a housing that includes the movement stem, and wherein the second pull-out piece drives the sliding pinion lever to move the sliding pinion;
- (iv) a second pivoting axis;
- and
- (v) a third pivoting axis, wherein the first pivot cooperates, along the third pivoting axis, with the second pivot.
Dependencies are inferred from the claim text.