Toy piano
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United States of America Patent
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Jun 20, 2017
Grant Date -
Sep 17, 2015
app pub date -
Mar 15, 2014
filing date -
Mar 15, 2014
priority date (Note) -
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Abstract
A toy piano including one or both an enlarged sound plate intermediate the sound bar of the toy piano and its sound board, and a sound box into which the sound board is incorporated. Preferably, the sound plate extends beyond the normal edges of the sound bar in which the longitudinal tines of the toy piano are mounted so as to lie adjacent to the sound board over a larger area. Likewise, the sound box should preferably be shaped so as to be somewhat wider (measured in the longitudinal direction of the tines) towards the end where the tines are longest (and produce lower tones) and somewhat narrower towards the end where the shorter tines (producing higher tones) are located. It preferred shape is characterized by somewhat convex curves at the more treble and bass ends, respectively, of the sound box with a somewhat concave curve intermediate these two ends. The backboard of the sound box can be bowed outward for enhance acoustics.
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