| 摘要 |
PROBLEM TO BE SOLVED: To simply play rhythm similar to the stick playing and brush playing of a drum set with hands by fitting sound boards capable of generating percussional sound and frictional sound to the opening sections formed on a body, and arranging vibration sensors on the back faces of the sound boards. SOLUTION: Sound boards 3, 4 are fitted to a circular large-diameter opening section 7 and a trapezoidal small-diameter opening section 8 formed on a body 2 with initial tension applied on the inside, and vibration sensors 9, 10 are arranged at nearly the center sections of the back faces of the sound boards 3, 4 by sticking. When the surfaces of the frictional sound generating means 6 of the sound boards 3, 4 are lightly tapped with palms, finger tips or nails, bases 5 are mainly vibrated vertically. The vibration is picked up by the vibration sensors 9, 10 and amplified by an amplifier, and the percussional sound similar to the percussional sound at the time of the stick playing of a drum set can be generated. |
