Music box
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 12, 2017
Issued Date -
N/A
app pub date -
Jun 9, 2017
filing date -
Jun 9, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A music box includes a box, an operation unit, multiple activation units and a comb member. A circuit board controls a coil in a desired one of the activation units to create a magnetic field with the magnetic plate so as to attract the activation plate to be matched with the match plate. The attached activation plate and the match plate are rotated by a shaft extending through the activation units. The shaft is driven by a driving member. Each activation plate includes fingers which push the keys of the comb member to generate sound.
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Family
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