| 摘要 |
PROBLEM TO BE SOLVED: To prevent a reduction in heat insulating performance when a heat insulating material is fixed, to stick heat insulating materials in a stacking manner and reuse the heat insulating materials. SOLUTION: In a heat insulating material fixing nail 1 made of plastic, a locking hole 16 for pulling out the fixing nail 1 is provided in the upper surface of sheet-like umbrella part 10, a shank 12 is provided to be extended in the back side of the umbrella part 10, the lower surface of the umbrella part 10 and the shank 12 are connected to each other by a sheet-like reinforcing piece 14, a thin part 14a formed to be thin is provided in a root part between the reinforcing piece 14 and the shank 12 and the umbrella part 10, and when the umbrella pat 10 and the shank 12 are rotated while the fixing nail 1 is inserted into the heat insulating material, the reinforcing piece 14 is broken away from the thin part 14a. |
