KEYBOARD INSTRUMENT
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United States of America Patent
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Issued Date -
Sep 28, 2023
app pub date -
May 31, 2023
filing date -
Dec 3, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A keyboard instrument has a first member having a first fixation fulcrum, a first link rotatably fixed to the first fixation fulcrum at one end side thereof, a second member having a second fixation fulcrum provided further forwards and downwards than the first fixation fulcrum, a second link rotatably fixed to the second fixation fulcrum at one end side thereof, and a coupling link fixed to a key so as to couple the other end side of the first link and the other end side of the second link together.
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