| 摘要 |
PURPOSE: A heater support device is provided to prevent an electric leakage accident due to contact between a heating element and another member by supporting a piece holder through an insulator around the heating element. CONSTITUTION: A heating element(31) with a coil shape is arranged around an object. A plurality of maintaining pieces(32) is connected in a vertical direction. A cavity unit(38) with an elliptic shape is formed between maintaining pieces. Cylindrical insulators(47,48) are dually installed around a piece holder(42). A disk shaped ceiling insulator(51) is installed on the upper side of the insulator.
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