Hammer device and keyboard device for electronic keyboard instrument

A keyboard device for an electronic keyboard instrument, comprising:

• a plurality of keys made of wood, each extending in a front-rear direction and configured to be capable of swinging about a support close to a center thereof in the front-rear direction, the keys being arranged in a state juxtaposed in a left-right direction;
• a hammer support disposed rearward of the keys;
• a plurality of hammers each extending in the front-rear direction, the plurality of hammers each having a rear end thereof supported by the hammer support pivotally movably in a vertical direction, and a protrusion protruding downward from a lower surface thereof brought into contact with a rear end of an associated one of the keys;
• and
• a plurality of hammer contact height-regulating parts, each having a predetermined vertical size and made of a synthetic resin and mounted on the rear end of the associated one of the keys in contact with an upper surface and a lower surface of the associated one of the keys, and being in contact with the protrusion of an associated one of the hammers in a key-released state to regulate a contact height of the protrusion of the associated one of the hammers to a predetermined height by the predetermined vertical size.