Heat-insulating container

Abstract

A heat insulating container is provided with an outer vessel 2 and an inner vessel 1 arranged in the outer vessel 2 with a gap 3 , at least a bag 4 arranged in the gap 3 , and a reinforcement member 10 with a rigidity higher than the composition material of the bag 4 , arranged on at least one peripheral side of the bag 4 . The reinforcement member 10 extends along the edge portion of the bag 4 . The bag 4 is formed into a rectangular shape, and the reinforcement member 10 is arranged along at least two opposite sides of the bag 4 . As a protrusion of one of the inner or outer vessels engages with the cavity or the protrusion of the reinforcement member 10 of the bag 4 , the bags 4 can be easily inserted into the gap 3.

What is claimed is:  
     
         1 . A heat insulating container comprising: 
 an inner vessel and an outer vessel, wherein the inner vessel is arranged in the outer vessel with a gap therebetween;    at least a bag, arranged in the gap, wherein the gap is filled with a gas whose heat-conductivity is lower than that of air; and    a reinforcement member, made of a material whose rigidity is higher than that of a composition material of the bag, arranged on at least one peripheral side of the bag.    
     
     
         2 . A heat-insulating container according to  claim 1 , wherein the reinforcement member is arranged at two sides of the bag.  
     
     
         3 . A heat-insulating container according to  claim 1 , further comprising: 
 a first protrusion or a first cavity, formed in at least one of the inner vessel and/or the outer vessel; and    a second cavity or a second protrusion corresponding to the first protrusion or the first cavity of the inner or outer vessels, formed on the reinforcement member, and wherein as the first protrusion or the first cavity of the inner or outer vessels engages with the second cavity or the second protrusion of the reinforcement member, the bag can be easily inserted into the gap.    
     
     
         4 . A heat-insulating container according to  claim 2 , further comprising: 
 a first protrusion or a first cavity, formed in at least one of the inner vessel and/or the outer vessel; and    a second cavity or a second protrusion corresponding to the first protrusion or the first cavity of the inner or outer vessels, formed on the reinforcement member, and wherein as the first protrusion or the first cavity of the inner or outer vessels engages with the second cavity or the second protrusion of the reinforcement member, the bag can be easily inserted into the gap.    
     
     
         5 . A heat-insulating container according to  claim 1 , wherein the inner vessel and the outer vessel are formed into polygonal shapes, and each of the bags is inserted into the gap corresponding to at least two adjacent sides of the polygons, and wherein further comprising: 
 a cavity or a protrusion, formed on each of the reinforcement member of each bag, wherein as the protrusion or the cavity of one of the reinforcement member of one the bags engages with the corresponding cavity or the corresponding protrusion of the reinforcement member of the other bag, the bags can be easily inserted into the gap.    
     
     
         6 . A heat-insulating container according to  claim 2 , wherein the inner vessel and the outer vessel are formed into polygonal shapes, and each of the bags is inserted into the gap corresponding to at least two adjacent sides of the polygons, and wherein further comprising: 
 a cavity or a protrusion, formed on each of the reinforcement member of each bag, wherein as the protrusion or the cavity of one of the reinforcement member of one the bags engages with the corresponding cavity or the corresponding protrusion of the reinforcement member of the other bag, the bags can be easily inserted into the gap.    
     
     
         7 . A heat-insulating container according to  claim 3 , wherein the inner vessel and the outer vessel are formed into polygonal shapes, and each of the bags is inserted into the gap corresponding to at least two adjacent sides of the polygons, and wherein further comprising: 
 a cavity or a protrusion, formed on each of the reinforcement member of each bag, wherein as the protrusion or the cavity of one of the reinforcement member of one the bags engages with the corresponding cavity or the corresponding protrusion of the reinforcement member of the other bag, the bags can be easily inserted into the gap.    
     
     
         8 . A heat-insulating container according to  claim 4 , wherein the inner vessel and the outer vessel are formed into polygonal shapes, and each of the bags is inserted into the gap corresponding to at least two adjacent sides of the polygons, and wherein further comprising: 
 a cavity or a protrusion, formed on each of the reinforcement member of each bag, wherein as the protrusion or the cavity of one of the reinforcement member of one the bags engages with the corresponding cavity or the corresponding protrusion of the reinforcement member of the other bag, the bags can be easily inserted into the gap.