Patent ID: 7476795

Claim:
A keyboard device for use in an electronic musical keyboard instrument, comprising a key frame and at least one key array unit mounted in the key frame, wherein the key array unit comprises a plurality of keys integrally formed with a common base part which integrates the plurality of the keys and base part into a unit which is fixed to the key frame, wherein the key comprises a key body having a front end portion, a rear end portion and a top face portion with a uniform elevation extending between the front end portion and the rear end portion, and a key supporting part which supports and elastically holds the key body in a vicinity of the rear end portion thereof for allowing the key body to pivot elastically around the key supporting part when the top face portion of the key body is pressed downward and the key supporting part couples the key body integrally to the common base part to form the key array part, wherein the key supporting part is formed below a back of the top face portion of the key body at a position spaced from the rear end portion of the key body toward the front end portion of the key body.