Patent ID: 8766075

Claim:
A keyboard device for an electronic keyboard instrument comprising: a plurality of keys each extending in a front-rear direction and configured to be swingable about a support located at or close to a center thereof in the front-rear direction, said plurality of keys being arranged side by side in a left-right direction; a hammer support disposed rearward of said keys; a plurality of hammers pivotally supported by said hammer support, each hammer being in abutment with a rear end of an associated one of said keys and configured to be pivotally moved in accordance with depression of said associated key; a key switch including a plurality of switch bodies that are provided in association with said hammers, respectively, and a switch board that has said switch bodies attached thereto and is mounted to said hammer support, said key switch detecting key depression information on a key by having an associated one of said switch bodies pressed by an associated one of said hammers pivotally moved by depression of said key; a plurality of fulcrum shaft portions that are arranged in a straight line along an axis extending horizontally in the left-right direction, and have said hammers engaged therewith, respectively; a stopper portion that restricts pivotal movement of one of said hammers which is being pivotally moved by depression of said associated key, by having said hammer abutted thereon; and a plurality of partition walls each formed in a manner to partition adjacent two of said fulcrum shaft portions and configured to reinforce said hammer support, wherein said hammer support includes a hammer supporting part for supporting said hammers, and a switch mounting part to which said key switch is mounted, and said hammer support is formed by an injection molded article made of a synthetic resin.