Hand-moving mechanism and timepiece
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United States of America Patent
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Oct 31, 2017
Issued Date -
N/A
app pub date -
Mar 1, 2017
filing date -
Jan 14, 2015
priority date (Note) -
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Abstract
A hand-moving mechanism configured to move a hand, the hand-moving mechanism including a stepping motor that includes a plurality of coils and that rotates a rotational shaft thereof in forward and reverse directions; a wheel train mechanism that includes a plurality of gears including one gear which is coupled to the rotational shaft of the stepping motor, and another gear which is coupled to the hand; and a motor driving control unit that individually controls energization to each coil to drive the stepping motor. A number of the coils to be simultaneously energized in a display hand-moving operation is different from a number of the coils to be simultaneously energized in a non-display hand-moving operation.
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