| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat insulator capable of enhancing insulation effectiveness and reducing volume and cost of it during transport effectively.SOLUTION: Plural cutting lines 22 are cut so that there are intervals vertically and laterally in a vertical direction with one fixed interval on a flat plate body 21. The cutting lines 22 are disposed so as to have intervals in the vertical and lateral directions, the lateral intervals of the cutting lines 22 are wider than intervals of the vertical direction. Thereby, by the lateral intervals of the cutting lines 22, plural long insulation projections 23 are formed on the plate body 21, and the vertical intervals of the cutting lines 22 have plural tension ribs 24 on the plate body 21, and both ends of the plate body 21 have junctions 25 respectively, the junctions have no cutting line 22.</p> |
