| 摘要 |
PURPOSE:To improve the compactness and portable performance, and also sound quality and design performance, by freely containably fitting a speaker to an electronic device main body. CONSTITUTION:A speaker 4 is contained in a speaker box 4A formed almost in a triangle and fitted in an electronic musical instrument main body 2 freely containably, and a rear end of the box 4A is fixed freely pivotally rotating to the front right end of a ceiling plate 5 with hinges 6. An operation panel 7 is located between a keyboard 3 and the plate 5 with a slope of a prescribed angle, and a rectangular opening 8 which enables the box 4A to be movable is formed at a part corresponding to the box 4A of a panel 7. The box 4A is depressed from the backward in the main body 2 and rotated upward, and a drive means hydraulic cylinder or electric motor is located at the opening 8 projected externally. |
