| 摘要 |
PROBLEM TO BE SOLVED: To provide a toilet bowl device having the muffler function of enabling a generated sound to be efficiently collected by a microphone unit.SOLUTION: A toilet bowl device has the function of deadening a sound by collecting the sound, which is generated in the toilet bowl device 1, by a microphone unit 13 and reproducing a sound with a phase opposite to a phase of the sound from a loudspeaker unit 14. The microphone unit 13 is provided in close vicinity to a channel wall of a drainage channel 12.SELECTED DRAWING: Figure 3 |
