Patent ID: 6054641
Filing Date: 2000-04-25
Classification: G10H

Abstract:
A keyboard musical instrument for practicing fingering, comprising:a keyboard having a plurality of keys turnable between rest positions and end positions and respectively assigned notes of a scale;a plurality of key action mechanisms respectively connected to said plurality of keys, and selectively actuated by said plurality of keys when said plurality of keys turn from said rest positions to said end positions;a plurality of hammer assemblies respectively associated with said plurality of key action mechanisms, and starting free rotations at respective escapes from said plurality of key action mechanisms selectively actuated by said plurality of keys,each of said plurality of hammer assemblies including a hammer shank and a hammer head fixed to said hammer shank so as to be moved together with said hammer shank associated therewith during the free rotations,said hammer head having a cylindrical configuration having a center line aligned with a center line of said hammer shank, andsaid hammer head being elongated along said center line thereof aligned with said center line of said hammer shank;a beaten means which said plurality of hammer assemblies strike after said free rotations without a substantial acoustic sound;a plurality of sensors for determining at least one key of said keyboard turning from said rest position toward said end position; anda sound generating means for electrically generating a sound with the note assigned said at least one key.