| 摘要 |
The heating apparatus comprises; expandable lead wires (2') (3'), for (+),(-) pole, intersecting each other; lead wires (2)(3) , for (+),(-) pole, fixed in the bottom of mattress (1) by a link (7) ; a foaming sponge (8) tightly mounted to surface of the mattress (1); a soft tube (6) for contraction inserted between the expandable lead wires (2')(3') or the lead wires (2)(3'); a ferrite core (5) for concentating magnetic force mounted between the expandable lead wires (2')(3') or the lead wires (2)(3).
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