Keyboard musical instrument having key-touch generator changing load exerted on keys depending upon sounds to be produced
AssigneeYamaha Corporation
InventorShigeru Muramatsu
Life of this patent
Estimating the term…
Abstract
A keyboard musical instrument is fabricated on the basis of an upright piano, and an electronic sound generating system is incorporated therein so as to selectively generate an acoustic piano sound and an electronic sound; a plurality of leaf spring members are provided for the keys of the acoustic piano for imparting a key touch like an electronic keyboard, and a change-over mechanism selectively engages key action mechanisms with the keys and the leaf spring members with the keys so that a player can select the piano key touch or the other key touch like the electronic keyboard depending upon the sound for a performance.
Claims10
A keyboard musical instrument comprising:
- a keyboard having a plurality of keys movable between rest positions and end positions when fingers of a player selectively depress said plurality of keys;
- a sound generating system responsive to a motion of each of said plurality of keys so as to generate a sound;
- a first key touch generator connectable to said plurality of keys, and providing a first resistance against said fingers through keys depressed by said player;
- a second key touch generator connectable to said plurality of keys, and providing a second resistance different from said first resistance against said fingers through the keys selectively depressed by said player;
- and
- a change-over unit connected to said first key touch generator and said second key touch generator, and responsive to an instruction of said player for selectively connecting said first key touch generator and said second key touch generator to said plurality of keys.
A keyboard musical instrument comprising:
- a keyboard for specifying a note of a scale;
- a sound generating system responsive to a motion of said keyboard for generating a sound;
- at least one pedal for giving a musical effect to said sound;
- a first pedal touch generator connectable to said at least one pedal, and responsive to a motion of said at least one pedal for providing a first resistance against said foot through said at least one pedal;
- a second pedal touch generator connectable to said at least one pedal, and responsive to said motion of said at least one pedal for providing a second resistance different from said first resistance against said foot through said at least one pedal;
- and
- a change-over unit connected to said first pedal touch generator and said second pedal touch generator, and responsive to an instruction of said player for selectively connecting said first pedal touch generator and said second pedal touch generator to said at least one pedal.
Dependencies are inferred from the claim text.