Patent ID: 6194643
Filing Date: 2001-02-27
Classification: G10C,G10F,G10G,G10H

Abstract:
A key actuation system for a keyboard instrument of the type having a key fulcrum pivotally supporting a plurality of keys, each key having a front end disposed forward of the fulcrum which is to be depressed by a player, and a rear portion disposed rearward of the fulcrum that pivots upwardly when the front end is depressed, each of the keys having an upper side and an under side, said system comprising:a pull solenoid having a coil portion and a piston, said solenoid operative when said coil portion is energized to draw said piston into said coil portion, said solenoid mounted such that said coil portion is disposed above the under side of one of the keys and behind the key fulcrum, said piston in mechanical communication with the rear portion of the key so that when said coil portion is energized and said piston is drawn into said coil portion, the rear portion of the key is lifted upwardly.