Keyboard device of an electronic keyboard instrument

Details Keyboard device of an electronic keyboard instrument Keyboard device of an electronic keyboard instrument

1991-04-23

1993-04-20

Shoop, Jr., William M.

Music

Instruments

General features

84433, 84434, 84440, G10C 312

Patent

active

052044866

ABSTRACT:
Disclosed is a keyboard device of an electronic keyboard instrument generating a sound upon actuation of a switch disposed on a main plate by a pushing operation of a keyboard; the device includes a touch element varying in position according to the operation of the keyboard and a guide element for guiding the touch element, so that pushing force of the keyboard may be regulated. Therefore, this device enables a player to feel the same sense of touch as that in a common piano by eliminating a sense of friction which may be exerted upon his finger when pushing down the keyboard.

REFERENCES:
patent: 3903780 (1975-09-01), Aliprandi
patent: 4217803 (1980-08-01), Dodds
patent: 4667563 (1987-05-01), Wakuda et al.
patent: 4723471 (1988-02-01), Sugimoto
patent: 4890533 (1990-01-01), Katsuta et al.

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