PROBLEM TO BE SOLVED: To provide a massage device that controls operation based on biological signals showing the heartbeat or pulse of a user, detects the biological signals reasonably and accurately, while introducing the user into comfortable sleep.SOLUTION: This massage device 1 includes: a driving mechanism 5 for massaging the back of a user first detectors 10-12 close to the driving mechanism 5 and second detectors 13, 14 apart from the driving mechanism 5. The drowsiness of the user is determined based on the biological signals obtained from the detectors 10-14. The driving mechanism 5 is controlled to reduce the massage strength according to the drowsiness. When the drowsiness is high, the detection results of the second detectors 13, 14 are employed, or when the drowsiness is low, the detection results of the first detectors 10-12 are employed. When the user is awake, the signal is detected from the position apart from the driving mechanism 5, and when the user sleeps, the signal is detected from the position where the vibration of the driving mechanism 5 is small. Thus, even when a part of the body is apart from the second detectors 13, 14 during sleeping, the biological signals with reduced vibration noise can be obtained.COPYRIGHT: (C)2013,JPO&INPIT【課題】利用者の心拍または脈拍を表す生体信号に基づいて制御を行うマッサージ装置において、利用者を快適な眠りに導きつつ、生体信号を合理的かつ精度よく検出する。【解決手段】マッサージ装置1は、利用者の背部にマッサージを施すための駆動機構5と、駆動機構5に近接した第1の検出器10~12と、駆動機構5に離間した第2の検出器13,14とを備え、検出器10~14から得られる生体信号に基づいて利用者の眠気度を判定し、眠気度に応じてマッサージ強度が小さくなるように駆動機構5を制御しつつ、眠気度が高い場合には第2の検出器13,14を、眠気度が低い場合には第1の検出器10~12の検出結果を採用する。つまり、利用者の覚醒時には駆動機構5に離間した位置から、睡眠時には駆動機構5の振動が小さい位置から信号を検出するので、睡眠時に体の一部が第2の検出器13,14から離れても、振動ノイズを抑えた生体信号が得られる。【選択図】図4
