| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for reducing the damage received by a covering material of a vacuum heat insulating material even when a ridge line part as the weakness of strength of the vacuum heat insulating material is brought into contact with a member end face of an outer case made out of a thin plate of steel plate or brought into contact with a refrigerant pipe such as a copper pipe and an aluminum pipe forming a refrigeration cycle of the refrigerator by mistake during the assembling work in assembling the vacuum heat insulating material between the outer casing and an inner casing of the refrigerator. SOLUTION: A core material is positioned on an approximately center of a flat projection plane of a bag-shaped covering material, a part projecting from a core material surface or bottom face of the bag-shaped covering material is applied as a lug part, a vacuum heat insulating material ridge line is covered by the lug part, and the covered ridge line part is mounted in opposition to an outer casing obstacle such as an inner casing holding part. Further a plurality of heat welding parts are arranged on a position along a core material peripheral edge of the bag-shaped covering material. COPYRIGHT: (C)2005,JPO&NCIPI
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