| 摘要 |
PURPOSE:To contrive cost reduction, improve serviceability and accurate burning detection by making an evaporating cylinder function as a burning detecting body. CONSTITUTION:An evaporating cylinder 6 is installed as electrically insulated from a bottom plate 14 of a can body 1, the evaporating cylinder 6 itself is utilized as a burning detecting body. For instance, the evaporating cylinder is engaged into the end part of a cylindrical body 15 forming an air passage 9 via an insulating member 16. Thereby, because of the evaporating cylinder 6 itself is capable of being used as the burning detecting body, the specific equiping of a frame rod is not required, accordingly, the advantage can be obtained in cost saving and workability. Further, the evaporating cylinder 6 for forming a flame does not produce the thermal deformation like a rod-shaped frame rod, also the effectiveness such as preventing of unstable operation can be obtained. |
