| 摘要 |
PURPOSE:To absorb the expansion/compression of a heating element by forming a gap between a spacer to be mounted on a boss for calking which fixes the heating element by electromagnetic induction heating and a hole to fit the heating element in the boss at the bottom of a cooking vessel. CONSTITUTION:The boss 7 for calking is protruded over the outside of the bottom 5 of the cooking vessel. The heating element 6 by electromagnetic induction on which the hole 10 for fitting is formed is abutted on the boss 7 at the outside of the bottom 5. Then, the spacer 8 is inserted, and the calking of the boss 7 is performed. The diameter of the hole 10 of the heating element 6 is formed larger than that of the boss 7, and the gap 9 is formed between the heating element 6 and the boss 7. Thereby, the heating, expansion and compression due to cooling of the heating element 6 can be absorbed, which prevents the cooking vessel from being deformed. |
