KEYBOARD DEVICE FOR KEYBOARD INSTRUMENT
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 17, 2022
app pub date -
Aug 19, 2021
filing date -
Aug 19, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A keyboard device for a keyboard instrument, capable of largely reducing noise generated when a hammer contacts a lower limit stopper during key release immediately after key depression. The keyboard device includes a keyboard chassis disposed on a keybed, keys pivotally supported on the chassis, hammers pivotally supported on the chassis below the keys and each vertically pivotally moved, an intermediate rail mounted on the chassis below a rotational shaft of the hammers and its vicinity in a state floating from the keybed, and a lower limit stopper mounted on the intermediate rail, such that each hammer is placed thereon via its placement-contact portion when in a key-released state and contacts the same from above via the placement-contact portion when pivotally moving downward in accordance with key release after being moved upward by key depression, whereby further pivotal motion of the hammer is stopped.
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