Timepiece synchronization mechanism
First Claim
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1. A timepiece movement comprising:
- a gear train subjected to a torque in the timepiece movement;
a mechanical mechanism including a resonator; and
an energy storage mechanism to deliver a torque to the gear train to actuate the mechanical mechanism to synchronize the gear train with the resonator having a given natural resonant frequency included in the timepiece movement, whereinthe gear train, the mechanical mechanism, and the energy storage mechanism are fixed on a same plate,the resonator is an annular resonator including a ring disposed around an axis, the ring is configured to be periodically deformed by an action induced by motion of a drive structure, included in the mechanical mechanism, and the drive structure is driven in a pivoting motion, directly or indirectly, by the gear train,interaction between the drive structure and the annular resonator is achieved by a magnetic interaction mechanism including magnets and/or magnetic poles, andthe ring includes a plurality of a first number of magnets or magnetic poles, the drive structure includes a plurality of a second number of magnets or magnetic poles, and the first number is different from the second number, so that the ring and the drive structure together form a speed reducing or increasing mechanism.
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Abstract
A timepiece movement including, fixed on a same plate, a gear train subjected to a torque in a timepiece movement, and an energy storage to deliver a torque to the gear train for actuating a mechanical mechanism synchronizing rotational speed of the gear train with a resonator having a given natural resonant frequency included in the timepiece movement. The resonator is an annular resonator including a ring disposed around an axis. The ring is arranged to be periodically deformed under an action induced by motion of a drive member, included in this mechanism, and the drive member is driven in a pivoting motion, directly or indirectly, by the gear train.
10 Citations
25 Claims
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1. A timepiece movement comprising:
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a gear train subjected to a torque in the timepiece movement; a mechanical mechanism including a resonator; and an energy storage mechanism to deliver a torque to the gear train to actuate the mechanical mechanism to synchronize the gear train with the resonator having a given natural resonant frequency included in the timepiece movement, wherein the gear train, the mechanical mechanism, and the energy storage mechanism are fixed on a same plate, the resonator is an annular resonator including a ring disposed around an axis, the ring is configured to be periodically deformed by an action induced by motion of a drive structure, included in the mechanical mechanism, and the drive structure is driven in a pivoting motion, directly or indirectly, by the gear train, interaction between the drive structure and the annular resonator is achieved by a magnetic interaction mechanism including magnets and/or magnetic poles, and the ring includes a plurality of a first number of magnets or magnetic poles, the drive structure includes a plurality of a second number of magnets or magnetic poles, and the first number is different from the second number, so that the ring and the drive structure together form a speed reducing or increasing mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification