Patent ID: 7528311
Filing Date: 2009-05-05
Classification: G10D

Abstract:
1. A keyboard-type percussion instrument comprising: a plurality of sounding members each adapted to generate, when struck, a musical tone of a tone pitch proper to each sounding member; a resonance box disposed above said sounding members and having a lower surface thereof which is open, said resonance box being adapted to cause a musical tone generated by each of said sounding members to resonate therein and to be output downward therefrom; keys disposed to correspond to respective ones of said sounding members; action mechanisms disposed below said sounding members to correspond to respective ones of said keys, each of said action mechanisms being adapted to strike a corresponding one of said sounding members in accordance with a motion of a corresponding one of said keys; a keybed disposed below said keys and said action mechanisms and having at least one tone output port through which the musical tone output downward from said resonance box passes, said keybed being adapted to receive loads of said keys and said action mechanisms; and at least one reflection plate disposed below said keybed and adapted to reflect the musical tone having passed through said tone output port toward a predetermined direction, wherein said sounding members are arranged in a one-stage structure, and said action mechanisms are arranged in a one-stage structure to correspond to an arrangement of said sounding members.