| 摘要 |
PURPOSE:To reduce the number of components, make an assembly work easy, and reduce cost by shaping a heating chamber in such a way that the ceiling plate, the bottom plate, and both the side plates of the heating chamber are made in one body with the front plate and the back plate is joined to the edge part of the back opening. CONSTITUTION:As for components 22 of a heating chamber 21 fitted in the inside of the main body of a heating cooker such as an electronic range, the ceiling plate 21a, the bottom plate 21b, and both the side plates 21c, 21d of the chamber 21 are shaped in one body by a deep drawing work of metal material when the front opening 23 in the front plate 21e of the chamber 21 is shaped. Further, at the overall peripheral part of the edge part of the back opening, a fitting flange 24 to which the back plate 25 is joined by such means as welding is formed and the heating chamber 21 is constituted by those component members 22 and the back plate 25.
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