SHEATHED HEATER FITTING STRUCTURE FOR MICROWAVE OVEN

PROBLEM TO BE SOLVED: To reduce the production cost and reduce any possibility of electromagnetic wave leak by reducing the number of part items and improving workability of an assembling work. SOLUTION: A sheathed heater fitting structure is constituted of a sheathed heater 3 rotatably inserted in a fitting hole 12 bored in a heating chamber side wall 10 and an earth plate 15 having an engagement hole in the central part and a plurality of elastic pieces 15a bently formed from the circumference to the inside, and it has such structure that the earth plate 15 having a sheathed heater inserted in the engagement hole is directly fixed to the heating chamber side wall 10. It has such structure that the bottom side elastic piece 15b receiving weight of the sheathed heater is reinforced out of the elastic pieces bently formed in the engagement hole of the earth plate 15. The top end of the earth plate 15 is engaged with the heating chamber side wall 10 and the bottom part is fastened to the heating chamber side wall 10 by a screw 7.