Heat Insulating Container

Abstract

The purpose of the invention is to provide a heat insulating container capable of suppressing the deterioration of heat insulation performance even if the volume of an object stored is reduced. A heat insulating container 1 includes a storage space 13 formed by a bottom wall 11 and side walls 12, a container body 10 having an opening 14 continuous to the storage space 13, and a deformable plate-shaped lid 20. The lid 20 is configured such that at least a part thereof is deformed in a state of being inserted into the storage space 13 through the opening 14 of the container body 10 thereby to bring peripheral edges 21 thereof into close contact with the inner surfaces of the side walls 12 of the container body 10.

1 . A heat insulating container comprising: a container body having a storage space formed by a bottom wall and side walls, and an opening continuous to the storage space; and a deformable plate-shaped lid,
 wherein the lid is configured such that at least a part thereof is deformed in a state of being inserted into the storage space through the opening of the container body thereby to bring a peripheral edge of the lid into close contact with inner surfaces of the side walls,   wherein the lid is configured by connecting a plurality of sections by a connecting elastic part, and a projected area thereof is reduced by compressing the connecting elastic part so as to reduce an interval between the sections, while the projected area thereof is increased by releasing the compression of the connecting elastic part so as to increase the interval between the sections.   
     
     
         2 . (canceled) 
     
     
         3 . The heat insulating container according to  claim 1 , wherein the projected area of the lid becomes equal to or smaller than an area of the opening by compressing the connecting elastic part so as to reduce the interval between the sections, while the projected area thereof becomes equal to or larger than the area of the opening by releasing the compression of the connecting elastic parts so as to increase the interval between the sections. 
     
     
         4 . The heat insulating container according to  claim 1 , wherein in the lid, the interval between the sections is reduced by compressing the connecting elastic part so as to cause a length of at least one side of the lid to become equal to or less than a length of a corresponding one side of the opening, while the interval between the sections is increased by releasing the compression of the connecting elastic part so as to cause the length of the one side to become equal to or more than the length of the corresponding one side of the opening. 
     
     
         5 . The heat insulating container according to  claim 1 , wherein the lid is configured to have a substantially rectangular shape in plan view by connecting the plurality of sections by the connecting elastic part shaped like a belt extending in a first direction in plan view, and also configured such that the length of a side of the lid along a second direction is reduced to be equal to or less than the length of a corresponding side of the opening by compressing the connecting elastic part along the second direction intersecting with the first direction, while the length of the side of the lid along the second direction is extended to be equal to or more than the length of the corresponding side by releasing the compression of the connecting elastic part along the second direction. 
     
     
         6 . The heat insulating container according to  claim 1 ,
 wherein the lid is configured by connecting a first section and a second section, each having a substantially rectangular shape in plan view, by the connecting elastic part,   a projection protruding in a direction away from the connecting elastic part is formed on at least either a first side positioned on the opposite side from the connecting elastic part in the first section and a second side positioned on the opposite side from the connecting elastic part in the second section, and   the lid is configured such that the projection is brought into close contact with at least a part of one side of the opening by releasing the compression of the connecting elastic part.   
     
     
         7 . The heat insulating container according to  claim 6 ,
 wherein the connecting elastic part is formed in a belt shape extending in a first direction in plan view,   the projection includes a first projection protruding from the first side and a second projection protruding from the second side,   the first projection is placed closer to one end portion in the first direction, and   the second projection is placed closer to the other end portion in the first direction.   
     
     
         8 . The heat insulating container according to  claim 1 , wherein the connecting elastic part has a bellows structure. 
     
     
         9 . The heat insulating container according to  claim 1 , wherein the lid is divided into a plurality of sections, and is configured by connecting the sections by a hinge so as to be deformable between a bent state and a flat state. 
     
     
         10 . The heat insulating container according to  claim 9 ,
 wherein the hinge is placed substantially at a center of the lid in plan view, and   the lid is set to the bent state at the time of being inserted into the storage space through the opening of the container body thereby to reduce the projected area thereof, while the lid is set to the flat state after being inserted into the storage space thereby to increase the projected area thereof.   
     
     
         11 . The heat insulating container according to  claim 9 ,
 wherein the hinge is placed in the vicinity of the peripheral edge of the lid, and   the projected area of the lid in the flat state is set to be larger than the projected area of the opening of the container body, and the projected area is reduced to be substantially the same as the projected area of the opening by shifting the flat state to the bent state at the time of being inserted into the storage space through the opening of the container body.   
     
     
         12 . The heat insulating container according to  claim 1 , wherein a surface of the at least one section of the lid is provided with a grip to be grasped by a user. 
     
     
         13 . The heat insulating container according to  claim 1 , wherein at least a part of the peripheral edge of the lid is provided with a peripheral elastic part.