| 摘要 |
PURPOSE:To contrive simplification of an assembling process, by providing an open lamp fixing angle by placing a protruded piece to be obtained by joining a side wall surface and the top plate of a heating chamber through bending into the open lamp fixing angle. CONSTITUTION:An angle 14 having a U-shaped cross section is formed on a fixing angle 13 of an open lamp 11, and a protruded piece 8 to be formed by bending and joining the tip part of a side wall surface 9 of a heating chamber 4 and the edge part of the top plate 5 of the heating chamber 4 each other is placed into the angle 14. With this constitution, an assembling process can be simplified. |
