WIND INSTRUMENT HAVING EXPANDED SOUND RANGE
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Mar 31, 2023
filing date -
Mar 31, 2023
priority date (Note) -
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Abstract
A predetermined sound interval interlocking mechanism 7 for making opening and closing operations of sound hole covers 4 of an existing sound range interlock with opening and closing operations of sound hole covers 4 of an expanded sound range is provided and a sound hole switching mechanism capable of collectively closing the sound holes of the high-pitched range by one key operation is provided independent from the predetermined sound interval interlocking mechanism 7. By using the above described mechanisms, both ranges can be played only by the operation of selecting the sound range and operating the sound hole covers 4 of the existing sound range. In addition, a slide plate 9 sliding along an inner surface of the tube for forcibly opening and closing the sound holes 3 from the inside of the tube is proposed as the sound hole switching mechanism.
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