Keyborad apparatus for electronic musical instrument

Details Keyborad apparatus for electronic musical instrument Keyborad apparatus for electronic musical instrument

1992-04-13

1993-10-05

Witkowski, Stanley J.

Music

Instruments

Stringed

84435, 84DIG7, G10C 312, G10C 318

Patent

active

052494977

ABSTRACT:
A keyboard apparatus for an electronic musical instrument has a jack which is movable and rotatable by a force to be transmitted from a key, and a hammer which is rotatable by a force to be transmitted from the jack. The jack is rotatably engaged by a fulcrum which is provided in the key. The jack is urged to its original position by a spring. The key has a return load applying portion which abuts the hammer when the hammer rotated by the jack returns to its original position.

REFERENCES:
patent: 3927594 (1975-12-01), Morita
patent: 4723471 (1988-02-01), Sugimoto
patent: 4901614 (1990-02-01), Kumano et al.
patent: 4953433 (1990-09-01), Fandrich et al.
patent: 4993305 (1991-02-01), Franz et al.
patent: 4995291 (1991-02-01), Takahashi

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