Patent ID: 7750222
Filing Date: 2010-07-06
Classification: G10C,G10H

Abstract:
1. A keyboard apparatus of an electronic musical instrument, the keyboard apparatus comprising: a plurality of keys; a plurality of massive bodies situated below the plurality of keys in a one-to-one correspondence with the keys, each massive body pivoting in synchronization with key-depression of its corresponding key; a frame on which the plurality of keys and the plurality of massive bodies are arranged in parallel; an upper limit stopper member which is placed below the plurality of keys to be fixed to the frame side such that a collision of each massive body with the upper limit stopper member results in restriction on upper limit of pivoting range of the each massive body; a lower limit stopper member which is placed below the plurality of keys to be fixed to the frame side such that a collision of each massive body with the lower limit stopper member results in restriction on lower limit of pivoting range of the each massive body; and a plurality of fixing portions provided on the frame in a one-to-one correspondence with the plurality of keys, at least an upper part of each fixing portion being situated inside right and left side walls of its corresponding key, each fixing portion having an undersurface to which the upper limit stopper member is fixed.