Insulated container and method of manufacturing the same

Abstract

The present invention provides an insulated container capable of reducing manufacturing costs, obtaining a sufficient heat insulating effect, and capable of being applied to various installation spaces having different shapes, and a method of manufacturing the same. The insulated container, which stores a liquid at a maintained temperature, includes: an internal container ( 1 ) which stores the liquid therein and includes a liquid inlet ( 5 ) and a liquid outlet ( 5 ); a sheet-like covering material ( 3 ) which houses the internal container ( 1 ); and an insulated space which is provided between the covering material ( 3 ) and the internal container ( 1 ) and is filled with a heat insulating material ( 2 ) and a gas adsorbent ( 4 ) to be decompressed. In the insulated container, a filler ( 6 ) is provided to a joint section ( 7 ) between the covering material ( 3 ) and the internal container ( 1 ).

1 . An insulated container which stores a liquid at a maintained temperature, comprising:
 an internal container which includes a liquid inlet and a liquid outlet and stores the liquid;   a sheet-like covering material which houses the internal container; and   an insulated space which is provided between the internal container and the covering material, is filled with a heat insulating material and a gas adsorbent and is decompressed.   
   
   
       2 . An insulated container according to  claim 1 , wherein:
 the internal container is made of one of stainless steel and a resin; and   the covering material comprises a laminated film including an adhesive layer.   
   
   
       3 . An insulated container according to  claim 1 , further comprising a filler which is provided at a joint section between the internal container and the covering material. 
   
   
       4 . An insulated container according to  claim 1 , wherein:
 the heat insulating material comprises an inorganic fiber selected from the group consisting of glass wool, rock wool, and a ceramic fiber; and   the gas adsorbent comprises calcium oxide, a barium-lithium alloy, and cobalt oxide.   
   
   
       5 . A method of manufacturing an insulated container which stores a liquid at a maintained temperature,
 the insulated container comprising:   an internal container which includes a liquid inlet and a liquid outlet and stores the liquid inside thereof; and   a sheet-like covering material which houses the internal container and forms an insulated space between the internal container and the sheet-like covering material,   the method comprising:   filling a heat insulating material and a gas adsorbent in the insulated space to be decompressed; and   providing a filler at a joint section between the covering material and the internal container to join the covering material and the internal container to each other.   
   
   
       6 . A method of manufacturing an insulated container which stores a liquid at a maintained temperature,
 the insulated container comprising:   an internal container which includes a liquid inlet and a liquid outlet and stores the liquid inside thereof; and   a sheet-like covering material which houses the internal container and forms an insulated space between the internal container and the sheet-like covering material,   the method comprising:   filling a heat insulating material and a gas adsorbent in the insulated space to be decompressed; and   preheating an inner side of a joint section between the covering material and the internal container which are joined to each other to thermally weld the joint section.   
   
   
       7 . An insulated container according to  claim 2 , further comprising a filler which is provided at a joint section between the internal container and the covering material. 
   
   
       8 . An insulated container according to  claim 2 , wherein:
 the heat insulating material comprises an inorganic fiber selected from the group consisting of glass wool, rock wool, and a ceramic fiber; and   the gas adsorbent comprises calcium oxide, a barium-lithium alloy, and cobalt oxide.   
   
   
       9 . An insulated container according to  claim 3 , wherein:
 the heat insulating material comprises an inorganic fiber selected from the group consisting of glass wool, rock wool, and a ceramic fiber; and   the gas adsorbent comprises calcium oxide, a barium-lithium alloy, and cobalt oxide.   
   
   
       10 . An insulated container according to  claim 7 , wherein:
 the heat insulating material comprises an inorganic fiber selected from the group consisting of glass wool, rock wool, and a ceramic fiber; and   the gas adsorbent comprises calcium oxide, a barium-lithium alloy, and cobalt oxide.