| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure that improves heat shielding performance and prevents variation in heat shielding performance from occurring.SOLUTION: A heat shield plate includes: a pair of flat outside metal plates 5c, 5d; a reflection metal plate 6a where irregularities 7 are formed, and that is provided between the outside metal plates 5c, 5d, and makes parts of the mutually opposite surfaces of the outside metal plates 5c, 5d and the reflection metal plate 6a directly contact with each other in an overlapped manner; and cavity parts 10, 10 that are provided between the mutually opposite surfaces on the basis of the existence of the irregularities 7 of the reflection metal plate 6. |
