| 摘要 |
<p>PURPOSE: To provide a heat insulating structure which obtains heat insulating effect equivalent to powder pearlite without using it, realizes reduction of weight of a product, and reduces evacuating time. CONSTITUTION: An outer tank 11 is provided. An inner tank 12 is positioned inside the outer tank 11. A vacuum heat insulating space 13 is prepared by evacuating a space between an inner peripheral surface of the outer tank 11 and an outer peripheral surface of the inner tank 12. An installation fitting 1 which is prepared by a plurality of installation projections 2 with specified spacings is arranged on the outer peripheral surface of the inner tank 12. A strip-like heat insulating member 4 is wound around the installation fitting 1 to form a heat insulating layer on an outer peripheral part of the inner tank 12.</p> |
