| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a vacuum heat insulating material from displacing due to heating of a heat insulated case body in a filling/foaming step of a hard urethane foam heat insulating material in a heat insulated case body by securely fixing the vacuum heat insulating material on the inner face side of the case body composed of a steel plate having a resin coating layer on the inner face side. <P>SOLUTION: A styrene rubber hot melt 20 is coated on the adhesion side face 19 of the vacuum heat insulating material 11, and the adhesion side face 19 is adhered on the inner face 16 of the steel plate 14. Further, the styrene rubber hot melt 20 is coated (provided) to contact both of an outer circumference face of a core material part adjacent perpendicularly to the adhesion side face 19 of the core part and the inner face 16 of the case body 15, on the outside of at least one side 21 of an outer material 13 of the adhesion side face 19 of the core part having a core material 12 between the outer material 13 of the vacuum heat insulating material 11, and the adhesion of the vacuum heat insulating material 11 and the steel plate 14 is strengthened. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
