| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyboard device of an electronic keyboard musical instrument, which is reduced in size and improved in a flexibility when designing positioning of illuminators for performance guide. <P>SOLUTION: A key main body part 11 is provided with a horizontal hinge part 11a which is formed under the rear of the backward top face part and is a key fulcrum function part enabling the key to rock in the direction of pressing the key to separate, and this key fulcrum function part is coupled to a common base end part 15, and these are formed of a resin into one body. The horizontal hinge part 11a is formed under the key in a form of a thin plate piece in the longitudinal direction of the key and is under the rear of the top face part 11f, and the front end part is coupled to the key main body part 11 through a coupling part 11b at an intermediate position nearer to the tip part 11k than the rear end part 11c, and the rear end part is coupled to the upper end of the common base part 15. The common base part 15 is rear under the key main body part 11 and is formed nearer to the tip part 11k than the rear end part 11c. <P>COPYRIGHT: (C)2008,JPO&INPIT |
