This creation is a kind of gravity sensing massager core, on the transmission shaft axle bed that Hou swings before driving massager core, pressure sensor is installed, the in due course stress condition of massager core is incuded using it, is judged by control circuit, and the amplitude of Hou swing before massager core is automatically adjusted, massage force is set to meet, or the control of pressure relief sensor, Hou reciprocally swinging before controlling massager core automatically by the formula set meet the overlapping massage demand of weight.本創作係一種重力感應按摩機芯，在驅動按摩機芯前後擺動的傳動軸軸座上，安裝有壓力感測器，利用其感應按摩機芯適時的受力情況，通過控制電路判斷，自動調節按摩機芯前後擺動的幅度，以滿足設定按摩力度，或者解除壓力感測器的控制，由設定的程式控制按摩機芯自動前後往復擺動，滿足輕重交疊的按摩需求。
