Keyboard apparatus
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United States of America Patent
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Oct 6, 2020
Grant Date -
Aug 16, 2018
app pub date -
Apr 13, 2018
filing date -
Oct 15, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A keyboard apparatus includes a plurality of keys each rotatable with a predetermined stroke, a support assembly which includes a support with one side rotatably arranged with a support rail and a jack with the one side rotatably supported by the support, and rotates with depression of any of the plurality of keys, a hammer unit which is operated by receiving an action of the jack, a shank rail which rotatably supports the hammer unit, and a jack stopper which makes contact with the jack which rotates with the depression of any of the plurality of keys, the jack stopper being placed on a rotation path of the jack and provided to a fixing portion which does not rotate with the depression any of the plurality of keys.
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