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US 9,557,712 B2Granted
Annular oscillating weight and timepiece comprising such an oscillating weight
AssigneeBlancpain SA
InventorsMarco Rochat, Samuel Cordier
Life of this patent
Estimating the term…
Abstract
The oscillating weight includes a drive ring and a heavy sector. The drive ring includes an annular transmission portion which has a coaxial toothing and a second annular portion concentric to the annular transmission portion, the heavy sector being fixed to the second annular portion. The drive ring further includes a plurality of connecting elements which are elastically deformable and which connect the annular transmission portion to the second annular portion.
Claims14
An annular oscillating weight for a self-winding timepiece, comprising:
- a drive ring including an annular transmission portion provided with a coaxial toothing to drive the winding of the timepiece, and including a heavy sector secured to the drive ring;
- wherein
- the drive ring further includes a plurality of elastically deformable connecting elements, the heavy sector being connected to the annular transmission portion via the connecting elements, and wherein
- the annular transmission portion provided with the coaxial toothing and the elastically deformable connecting elements are movable relative to each other in a same plane that extends in a radial direction of the drive ring.
1 more element
A self-winding timepiece movement comprising:
- an oscillating weight including an annular transmission portion provided with a coaxial toothing to drive the winding of the timepiece, and including a heavy sector secured to a drive ring;
- wherein
- the drive ring further includes a plurality of elastically deformable connecting elements, the heavy sector being connected to the annular transmission portion via the connecting elements, and a self-winding mechanism including a winding wheel set arranged to mesh with the coaxial toothing, and at least three bearing rollers mounted to pivot on a fixed element of the timepiece, the bearing rollers being arranged to cooperate with the annular transmission portion of the drive ring so that the oscillating weight is free to rotate, suspended and guided by the bearing rollers.
A self-winding timepiece comprising:
- a timepiece movement including an oscillating weight including an annular transmission portion provided with a coaxial toothing to drive the winding of the timepiece, and including a heavy sector secured to a drive ring;
- wherein
- the drive ring further includes a plurality of elastically deformable connecting elements, the heavy sector being connected to the annular transmission portion via the connecting elements, and a self-winding mechanism including a winding wheel set arranged to mesh with the coaxial toothing, and at least three bearing rollers mounted to pivot on a fixed element of the timepiece, the bearing rollers being arranged to cooperate with the annular transmission portion of the drive ring so that the oscillating weight is free to rotate, suspended and guided by the bearing rollers.
Dependencies are inferred from the claim text.