To provide a heat insulation box for performing the heat insulation by using a vacuum heat insulating material which is capable of easily fixing the vacuum heat insulating material.
A plate-like part 19 constituting the heat insulation box 1 has double metal plates 20 consisting of an inner side plate 22 and an outer side plate 23, and a vacuum heat insulating material 25 and a resin foam part 26 arranged in a heat insulation layer arrangement space 27 formed between the double metal plates 20. The vacuum heat insulation material 25 has outer covering materials 41, 42 and a core 43. The core 43 is divided into a plurality of areas 43a, and a partition part 46 is formed on the outer covering materials 41, 42 between the areas 43a.
COPYRIGHT: (C)2007,JPO&INPIT
Makoto Kuriyama
Yasuaki Tanimoto
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Daisuke Nagano
Kentaro Fujii