Touch weight adjustment mechanism for keyboard device
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United States of America Patent
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May 25, 2021
Grant Date -
Sep 24, 2020
app pub date -
Mar 17, 2020
filing date -
Mar 19, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A touch weight adjustment mechanism for a keyboard device, which is capable of adjusting a touch weight of a key easily and appropriately by using a coil spring and changing the urging force of the spring. An adjustment spring is formed by a coil spring for causing a tensile force thereof to act on the key, thereby increasing the touch weight of the key. An adjustment shaft is formed in a rod shape and is movable in a lengthwise direction by being operated for rotation. A rotary connection member connects between one end of the adjustment spring and one end of the adjustment shaft, which are closest to each other, and a spring-side connecting portion thereof connected to the adjustment spring and a shaft-side connecting portion thereof connected to the adjustment shaft are rotatable relative to each other.
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