Timepiece with tourbillon mechanism having a support
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United States of America Patent
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Feb 17, 2015
Grant Date -
May 8, 2014
app pub date -
Jul 5, 2012
filing date -
Jul 7, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A timepiece includes: a frame; a mobile body of a finishing gear train; and a tourbillon mechanism including a holder supporting a balance and at least one escapement. The tourbillon mechanism includes: an outer ring rotatably mounted onto the frame about a first axis; at least one inner ring inside the outer ring and rotatable relative to the outer ring about a second axis, the holder being pivotably mounted in the inner ring and secured to a shaft around which the inner ring is freely and rotatably mounted about a third axis; a first toothed member mounted onto the frame; a first pinion secured to the shaft of the holder to engage with the first toothed member to rotate the holder; and a unit driving the inner ring, engaging with the movable body of the finishing gear train and arranged to move the inner ring and, consequently, the outer ring.
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