KEYBOARD APPARATUS AND KEYBOARD INSTRUMENT
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United States of America Patent
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Issued Date -
May 9, 2024
app pub date -
Nov 1, 2023
filing date -
Nov 4, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A keyboard apparatus has a hammer supported rotatably on a fulcrum, including a weight disposed further backwards than the fulcrum, and including an extending member configured to extend further forwards than the fulcrum, a key including a hammer press rod configured to move towards and away from the extending member, and a switch, and the extending member includes a press-down area configured to protrude further forwards than the hammer press rod to press down the switch, and the extending member is configured to press down the switch without contacting the hammer press rod.
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