Keyboard device of electronic keyboard musical instrument

Details Keyboard device of electronic keyboard musical instrument Keyboard device of electronic keyboard musical instrument

1990-12-27

1992-07-21

Broome, Harold

Music

Instruments

General features

200 5R, G10C 312

Patent

active

051313081

ABSTRACT:
A keyboard of an electronic musical instrument has the keys hinged to a chassis which has key-hole shaped openings receiving moveable switch contacts supported from below the chassis on a switch plate. Each key has an actuator for depressing the respective switch, and a projecting rod for engaging the upper surface of the switch plate to limit downward movement of the key. The key further has a side wall with a lower end portion formed as a stopper which engages the undersurface of the switch plate to limit upward movement of the key. A switch guide fitted to the chassis guides the side walls of the respective keys.

REFERENCES:
patent: 4604937 (1986-08-01), Kumano et al.

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