PROBLEM TO BE SOLVED: To provide a bed apparatus for preventing an unpleasant vibration from being generated when the bed apparatus is vibrated in response to sound signals to be output from various music reproducers.SOLUTION: The bed apparatus 21 includes: an amplitude restricting device 2 for directly or indirectly inputting the sound signals from the various music reproducers MP1, MP2, MP3, and outputting a signal with the amplitude level of the sound signal restricted therein an amplitude level adjusting device 3 connected to the amplitude restricting device 2 so as to vary the amplitude restriction level of the amplitude restricting device 2 an amplifying circuit 4 connected to the output side of the amplitude restricting device 2, amplifying the signal, which is restricted in amplitude and output by the amplitude restricting device 2, and outputting the signal and a vibrator 5 connected to the output side of the amplifying circuit 4 and vibrated in response to the signal to be output by the amplifier circuit 4. The vibration is generated within a comfortable level range in response to the sound signals to be output by the various music reproducers MP1, etc., with different sound signal amplitude levels.COPYRIGHT: (C)2011,JPO&INPIT【課題】各種の音楽再生装置が出力する音声信号に応じてベッド装置を振動させる際、不快な振動の発生が防止されるベッド装置を提供すること。【解決手段】ベッド装置21は、各種の音楽再生装置MP1,MP2,MP3から音声信号が直接又は間接的に入力され、音声信号の振幅レベルを制限した信号を出力する振幅制限器2と、振幅制限器2に接続され振幅制限器2の振幅制限レベルを可変する振幅レベル調整器3と、振幅制限器2の出力側に接続され、振幅制限器2が出力する振幅が制限された信号を増幅して出力するアンプ回路4と、アンプ回路4の出力側に接続され、アンプ回路4が出力する信号に従って振動する振動子5を有し、音声信号の振幅レベルが異なる各種の音楽再生装置MP1等が出力する音声信号に応じて、快適なレベル範囲で振動を発生する。【選択図】図1
