PROBLEM TO BE SOLVED: To solve problems in a cushion embedding type electric magnetic therapy unit in which a thick structure for enduring a dynamic load cannot easily be seated when installed in a chair, a thick and rigid frame structure becomes heavy to make the movement is difficult, a thickness of a cushion part attenuates magnetism to reduce surface magnetism, heat is filled inside due to the thick structure to thereby increase a risk of low temperature burn, a damage accident of a cord is increased due to exposure of the cord of multiple sheet connections, and a cushion cover for easily inserting a bare type into a cushion type is not present, so that the bare type is used as a cushion embedding type, and therefore a user wraps it with a futon bedding or a towel to cause an overheating hazard.SOLUTION: An electric magnetic therapy unit uses high density foamed resin to facilitate dynamic load strength, a thin structure, weight reduction, heat dissipation, cord receipt and a detachable cushion cover, and proper magnetism output can be obtained by arranging holes and magnetism guide plates in the urethane layer of exterior.SELECTED DRAWING: Figure 26COPYRIGHT: (C)2018,JPO&INPIT【課題】クッション埋め込みタイプの電気磁気治療器において、動的荷重に耐える厚い構造で椅子に設置すると容易に座れない、厚い構造でリジットなフレーム構造では重くなり移動が困難、クッション部の厚みで磁気が減衰して表面磁気が小さくなる、厚い構造のために内部に熱がこもるり低温やけどのリスク増大、複数シート連結部のコードの露出によるコードの損傷事故の増大、裸タイプをクッションタイプに簡単に挿入するクッションカバーがないので裸タイプをクッション埋め込みタイプとして使用するために布団やタオル等で使用者が包んで過熱事故を起こす可能性、等々の問題があった。【解決手段】高密度発泡樹脂を使用し、動的荷重強度、薄型構造、軽量化、放熱、コード収納、脱着可能なクッションカバーを容易にし、外装のウレタン層に穴と磁気誘導板を配置することで適正な磁気出力を得ることを可能とした。【選択図】図26