Cold storage container

Abstract

To provide a cold storage container capable of reducing a risk of exposure of an item stored in its internal space to ambient air.SOLUTION: The cold storage container of the embodiment comprises: a box body that is formed as a bottomed box enclosing an internal space capable of accommodating items and is configured to include insulation material at least partially; and a top surface portion provided on the box body on the top surface opposite to the bottom. The top surface portion includes a top surface body having an opening communicating with the internal space formed at a part thereof, and a lid body provided to be displaceable between a closed state that closes the opening and an open state that opens the opening.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a refrigerated container. [Background technology]

[0002] For example, Patent Document 1 discloses a refrigerated container that includes a box body with one open side and a lid body that covers the open side of the box body. The lid body is detachably attached to the box body by, for example, a hook-and-loop fastener. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-68326 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the lid is removed from the box, the entire open surface of the box may become exposed, which increases the risk that items (e.g., refrigerated cargo) stored in the interior space of the refrigerated container may be exposed to the outside air.

[0005] Therefore, an object of the present invention is to provide a refrigerated container that can reduce the risk of items stored in the internal space being exposed to the outside air. [Means for solving the problem]

[0006] (1) A refrigerated container according to one aspect of the present invention comprises a box body formed in the shape of a bottomed box that encloses an internal space capable of accommodating items, and that includes a heat insulating material in at least a portion thereof; and a top surface portion provided on the top surface of the box body opposite the bottom surface. The top surface portion comprises a top surface main body having an opening formed in a portion thereof that leads to the internal space; and a lid body that is displaceable between a closed state that blocks the opening and an open state that opens the opening.

[0007] (2) In one aspect of the present invention, an area where the opening is formed may be smaller than an area where the top surface body is formed in a plan view of the top surface portion.

[0008] (3) In one aspect of the present invention, in a plan view of the top surface portion, the top surface portion comprises a first surface portion, a second surface portion provided at a position different from the first surface portion, and a fold portion provided at the boundary between the first surface portion and the second surface portion and enabling the top surface portion to be bent, and the lid body may be provided at a position different from the fold portion in the plan view.

[0009] (4) In one aspect of the present invention, the box body is configured to include a first side portion, a second side portion, a third side portion, and a fourth side portion, and when the top surface portion is removed from the box body, at least one of the first side portion, the second side portion, the third side portion, and the fourth side portion may be configured so that an upper portion in the vertical direction can be bent outward relative to a lower portion.

[0010] (5) In one aspect of the present invention, the box body may be configured to include a first side portion, a second side portion, a third side portion, and a fourth side portion, and may be provided with an ice pack storage section on the inside of at least two of the first side portion, the second side portion, the third side portion, and the fourth side portion that face each other. [Effects of the Invention]

[0011] According to an aspect of the present invention, it is possible to provide a refrigerated container that can reduce the risk of items stored in the internal space being exposed to the outside air. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view of an insulated container according to an embodiment. [Figure 2] FIG. 2 is a front view of the refrigerated container according to the embodiment. [Figure 3] FIG. 2 is a plan view of the refrigerated container according to the embodiment. [Figure 4] FIG. 2 is a side view of the refrigerated container according to the embodiment. [Figure 5]FIG. [Figure 6] FIG. 2 is a diagram showing the refrigerated container of the embodiment in a folded state. [Figure 7] 5A to 5C are diagrams showing a procedure for folding the refrigerated container of the embodiment. [Figure 8] 8A to 8C are diagrams showing the procedure for folding the refrigerated container of the embodiment, following FIG. 7. [Figure 9] A diagram showing the steps for folding the refrigerated container, following Figure 8. [Figure 10] A diagram showing the steps for folding the refrigerated container, following Figure 9. [Figure 11] A diagram showing the steps for folding the refrigerated container, following Figure 10. [Figure 12] A diagram showing the steps for folding the refrigerated container, following Figure 11. [Figure 13] 12, showing the steps for folding the refrigerated container. [Figure 14] A diagram showing the steps for folding the refrigerated container, following Figure 13. [Figure 15] 14 , showing the steps for folding the refrigerated container. [Figure 16] A diagram showing the procedure for folding the refrigerated container, following Figure 15. [Figure 17] 16, showing the steps for folding the refrigerated container. [Figure 18] FIG. [Figure 19] FIG. 19 is a cross-sectional view taken along the arrow XIX in FIG. 18. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," do not strictly mean such arrangements or states, but also include arrangements or states in which there is a relative displacement with a tolerance or an angle or distance to the extent that the same function is obtained. In the drawings used in the following description, the scale of each component may be appropriately changed to show each component in a recognizable size.

[0014] <Refrigerated container> Fig. 1 is a perspective view of a refrigerated container 1 of an embodiment. Fig. 2 is a front view of the refrigerated container 1 of an embodiment. Fig. 3 is a plan view of the refrigerated container 1 of an embodiment. Fig. 4 is a side view of the refrigerated container 1 of an embodiment. Fig. 5 is a plan view of a box body 2 of an embodiment. Fig. 6 is a view showing the refrigerated container 1 of an embodiment in a folded state. 1 to 6, the refrigerated container 1 includes a box body 2 and a top surface 3. The box body 2 is formed in the shape of a box with a bottom that encloses an internal space 20 capable of accommodating goods. The box body 2 is configured to include a heat insulating material 4 in at least a portion thereof.

[0015] The heat insulating material 4 is made of, for example, polyisocyanurate foam (PIR) or the like. The heat insulating material 4 may also be made of plastic cardboard with aluminum vapor deposition film on both sides. The configuration of the heat insulating material 4 is not limited to the above and can be changed according to design specifications.

[0016] The heat insulating material 4 is removably attached to the portions of the box body 2 and the top surface portion 3 facing the internal space 20 using hook-and-loop fasteners or the like. For example, the heat insulating material 4 may be removably attached integrally to each portion of the box body 2. For example, at least a portion of the heat insulating material 4 may be configured to be foldable. Note that the installation mode of the heat insulating material 4 is not limited to the above and can be changed according to design specifications.

[0017] The example in Figure 1 shows a state in which a refrigerated container 1 is placed on a pallet 10. The upper side of the paper in Figure 1 corresponds to the upper side in the vertical direction. The lower side of the paper in Figure 1 corresponds to the lower side in the vertical direction (towards the ground). The refrigerated container 1 stands upright in the up-and-down direction (vertical direction) on the pallet 10.

[0018] In this embodiment, the refrigerated container 1 is configured to be at least partially foldable. The refrigerated container 1 has a rectangular parallelepiped outer shape in an upright state (the state before the refrigerated container 1 is folded). The states shown in Figs. 1 to 5 show the upright state of the refrigerated container 1. The state shown in Fig. 6 shows the folded state of the refrigerated container 1 (hereinafter also referred to as the "folded state").

[0019] In the following explanation, an X, Y, Z Cartesian coordinate system will be used as necessary. The X direction corresponds to the width direction of the refrigerated container 1 in an upright state (the left-right direction on the paper in FIG. 2). The Y direction corresponds to the depth direction of the refrigerated container 1 in an upright state (the depth direction on the paper in FIG. 2). The Z direction corresponds to the height direction (the up-down direction on the paper in FIG. 2) that is perpendicular to the width direction (X direction) and depth direction (Y direction) of the refrigerated container 1 in an upright state. In the following explanation, of the X, Y, and Z directions, the arrow side in the figure will be referred to as the plus (+) side, and the side opposite the arrow will be referred to as the minus (-) side. The +Z side corresponds to the vertically upward side, and the -Z side corresponds to the vertically downward side.

[0020] In this embodiment, the box body 2 is configured to include a first side surface portion 21, a second side surface portion 22, a third side surface portion 23, and a fourth side surface portion 24. In the refrigerated container 1 in an upright state, the combined shape of the first side surface portion 21, the second side surface portion 22, the third side surface portion 23, and the fourth side surface portion 24 forms a rectangular frame in a plan view. In the refrigerated container 1 in an upright state, each of the first side surface portion 21 and the third side surface portion 23 is formed in a plate shape parallel to the XZ plane and faces each other in the Y direction. In the refrigerated container 1 in an upright state, each of the second side surface portion 22 and the fourth side surface portion 24 is formed in a plate shape parallel to the YZ plane and faces each other in the X direction.

[0021] The box body 2 has a bottom surface 25 on the bottom surface opposite to the top surface 3. The bottom surface 25 is formed in a rectangular shape in a plan view. In the refrigerated container 1 in an upright state, the top surface 3 and the bottom surface 25 are each formed in a plate shape parallel to the XY plane and face each other in the Z direction. In the refrigerated container 1 in an upright state, the first side surface 21, the second side surface 22, the third side surface 23, and the fourth side surface 24 each rise upward from a corresponding one of the four sides of the bottom surface 25 toward the top surface 3. Each of the first side surface 21, the second side surface 22, the third side surface 23, and the fourth side surface 24 is configured to be bendable (foldable) with respect to a corresponding one of the four sides of the bottom surface 25.

[0022] The top surface 3 is provided on the top surface opposite the bottom surface of the box body 2. The top surface 3 is formed in a rectangular shape in a plan view when in a closed state in which it closes the internal space 20. The top surface 3 is detachably attached to the box body 2 by hook-and-loop fasteners 5A and 5B.

[0023] In the refrigerated container 1 in the upright position, hook-and-loop fasteners 5B are provided on the upper edges of the first side surface 21, second side surface 22, third side surface 23, and fourth side surface 24 so as to surround the open surface of the box body 2. In the refrigerated container 1 in the upright position, flanges 34A, 34B are provided on the peripheral edge of the top surface 3, protruding to face the corresponding hook-and-loop fasteners 5B. A hook-and-loop fastener 5A is provided on each of the flanges 34A, 34B of the top surface 3. Each of the flanges 34A, 34B of the top surface 3 is detachably attached to the corresponding hook-and-loop fastener 5B of the box body 2 via the hook-and-loop fastener 5A.

[0024] Top panel 3 is configured to be openable and closable around a fold along the +Y edge of the upper edge of third side panel 23. For example, another hook-and-loop fastener is provided on the outer side of hook-and-loop fastener 5B on the upper edge of third side panel 23. The +Y side flange of top panel 3 is sandwiched between the two hook-and-loop fasteners. This allows top panel 3 to be opened and closed with the +Y side flange of top panel 3 attached to box body 2 like a hinge.

[0025] In this embodiment, the top surface portion 3 comprises a top surface main body 30 having an opening 30h formed in a portion thereof that leads to the internal space 20, and a lid body 35 that is displaceable between a closed state that blocks the opening 30h and an open state that opens the opening 30h.

[0026] In a plan view of the top surface portion 3, the top surface main body 30 is formed in a rectangular shape. Each of the flange portions 34A, 34B of the top surface portion 3 projects from a corresponding one of the four sides of the top surface main body 30 so as to face a corresponding hook-and-loop fastener 5B. Each of the flange portions 34A, 34B is configured to be bendable (foldable) with respect to a corresponding one of the four sides of the top surface main body 30.

[0027] In a plan view of the top surface portion 3, the formation area of ​​the opening 30h is smaller than the formation area of ​​the top surface main body 30. The formation area of ​​the opening 30h corresponds to the opening area of ​​the opening 30h when the lid body 35 is displaced to the open state. The formation area of ​​the top surface main body 30 corresponds to the area of ​​the part of the top surface main body 30 other than the opening 30h.

[0028] For example, in a plan view of the top surface portion 3, the formation area of ​​the openings 30h is more preferably 1 / 2 or less, and even more preferably 1 / 3 or less, of the formation area of ​​the top surface main body 30. Note that the ratio of the formation area of ​​the openings 30h to the formation area of ​​the top surface main body 30 is not limited to the above and can be changed according to design specifications.

[0029] In a plan view of the top surface 3, the top surface 3 includes a first surface 31, a second surface 32 provided at a position different from the first surface 31, and a fold 33 provided at the boundary between the first surface 31 and the second surface 32 and enabling the top surface 3 to be bent. The lid 35 is provided at a position different from the fold 33 in a plan view.

[0030] In the upright refrigerated container 1, the first surface 31 and the second surface 32 are each formed in a rectangular shape with the longitudinal direction in the X direction in a plan view, and are lined up in order from the -Y side to the +Y side. The boundary (fold portion 33) between the first surface 31 and the second surface 32 corresponds to the boundary between the +Y edge of the first surface 31 and the -Y edge of the second surface 32 in a plan view. The lid 35 is provided at a position at the center of the second surface 32 in the X direction and the center of the Y direction in a plan view.

[0031] In a closed state in which the lid 35 covers the opening 30h, the lid 35 is formed in a rectangular shape with its longitudinal axis in the X direction in a plan view. The lid 35 is detachably attached to the top surface main body 30 by a hook-and-loop fastener (a portion on the inner side in the Z direction, not shown). The lid 35 is provided with flanges 36A, 36B on both edges in the X direction that protrude to face the corresponding hook-and-loop fasteners (a portion on the top surface main body side, not shown). Each flange 36A, 36B of the lid 35 is detachably attached to the corresponding hook-and-loop fastener of the top surface main body 30 via the hook-and-loop fastener (a portion on the inner side in the Z direction, not shown).

[0032] The lid 35 is configured to be able to open and close relative to the top surface main body 30, centering on a fold along the +X edge. A second hook-and-loop fastener is provided on the outside of the hook-and-loop fastener in a portion of the top surface main body 30 corresponding to the +X side flange of the lid 35. The +X side flange 36B of the lid 35 is sandwiched between the two hook-and-loop fasteners. This allows the lid 35 to be opened and closed with the +X side flange 36B of the lid 35 attached to the top surface main body 30 like a hinge.

[0033] In plan view, a handle 6B (hereinafter also referred to as "lid handle 6B") for opening and closing the lid 35 is provided on the -X side flange 36A of the lid 35. The lid handle 6B is formed into a shape with its elongated length in the Y direction in plan view. The lid handle 6B is made of, for example, a polypropylene belt (PP belt). Note that the configuration of the lid handle 6B is not limited to the above and can be changed according to design specifications.

[0034] In this embodiment, when the top surface portion 3 is removed from the box body 2, at least one of the first side surface portion 21, the second side surface portion 22, the third side surface portion 23 and the fourth side surface portion 24 is configured so that the upper portion in the vertical direction can be bent outward relative to the lower portion.

[0035] In the upright refrigerated container 1, the first side portion 21 comprises a first side upper portion 21A (an example of the upper portion of one side portion in the vertical direction), a first side lower portion 21B (an example of the lower portion of one side portion in the vertical direction) provided below the first side upper portion 21A, and a first side fold portion 21C provided at the boundary between the first side upper portion 21A and the first side lower portion 21B, allowing the first side portion 21 to be bent.

[0036] In the upright refrigerated container 1, each of the first side surface upper portion 21A and the first side surface lower portion 21B is formed in a rectangular shape having a longitudinal direction in the X direction when viewed from the front, and is aligned in order from the +Z side to the -Z side. The boundary between the first side surface upper portion 21A and the first side surface lower portion 21B (first side surface fold portion 21C) corresponds to the boundary between the -Z end edge of the first side surface upper portion 21A and the +Z end edge of the first side surface lower portion 21B when viewed from the front.

[0037] For example, when an operator stands in front of the upright refrigerated container 1, the first side upper portion 21A can be bent outward relative to the first side lower portion 21B starting from the first side fold portion 21C, allowing access to the internal space 20 through the open portion of the bent first side upper portion 21A.

[0038] When viewed from the front, the upper part 21A of the first side surface is provided with a document storage section 40 capable of storing documents such as slips. When viewed from the front, the document storage section 40 is formed in a rectangular shape. The document storage section 40 is made of, for example, a transparent film. The arrows in FIG. 2 indicate the direction in which documents are stored in the document storage section 40. Note that the configuration of the document storage section 40 is not limited to the above and can be changed according to design specifications.

[0039] In a side view, the second side surface portion 22 is provided with a handle 6D (hereinafter also referred to as a "side surface handle 6D") for opening and closing the second side surface portion 22. The side surface handle 6D is formed into a shape having a longitudinal axis in the Y direction in a side view. The side surface handle 6D is configured, for example, from a polypropylene belt (PP belt). Note that the configuration of the side surface handle 6D is not limited to the above and can be changed according to design specifications.

[0040] In this embodiment, a cold pack storage section 8 is provided on the inside of at least two mutually opposing side surfaces among the first side surface section 21, the second side surface section 22, the third side surface section 23, and the fourth side surface section 24. A cold pack such as dry ice is stored in the cold pack storage section 8.

[0041] In the refrigerated container 1 in the upright state, the ice pack storage units 8 are provided in the portions of the box body 2 and the top surface 3 facing the internal space 20. For example, there are ten ice pack storage units 8 in total, three on each of the inner X-direction surfaces of the second side surface 22 and the fourth side surface 24 that face each other, and four not shown on the -Z side surface of the top surface 3. Note that the installation manner of the ice pack storage units 8 (the number installed, the installation location, etc.) is not limited to the above and can be changed according to design specifications.

[0042] In the upright refrigerated container 1, a thermometer 9 is provided on the first side surface portion 21. The thermometer 9 is provided in the upper center portion in the X direction of the first side surface lower portion 21B when viewed from the front. For example, when an operator stands in front of the upright refrigerated container 1, the operator can check the temperature inside the refrigerated container 1 by looking at the thermometer 9. Note that the installation mode of the thermometer 9 is not limited to the above and can be changed according to design specifications.

[0043] The refrigerated container 1 is detachably mounted on the pallet 10. When the refrigerated container 1 is in an upright position, it is detachably mounted on the pallet 10 using a pair of belts 7A and hook-and-loop fasteners or the like. The pair of belts 7A are provided on the outer lower part of the first side surface lower part 21B in the X direction when viewed from the front. For example, when an operator stands in front of the upright refrigerated container 1, the operator can remove the refrigerated container 1 from the pallet 10 by releasing the hook-and-loop fasteners from the pair of belts 7A.

[0044] Belts 7B for maintaining the folded state are provided inside the refrigerated container 1. When the refrigerated container 1 is upright, the belts 7B are provided on the first side surface portion 21 and the bottom surface portion 25 facing the internal space 20. Note that the installation manner of each belt (number of belts, installation location, etc.) is not limited to the above and can be changed according to design specifications.

[0045] <Procedure for folding the refrigerated container> 7 to 17 are diagrams showing the procedure for folding the refrigerated container 1 of the embodiment. Hereinafter, an example of a procedure for folding the refrigerated container 1 of the embodiment will be described with reference to FIGS.

[0046] First, as shown in FIG. 7, two workers stand on the left and right sides of the refrigerated container 1. 8 and 9, the top surface 3 is removed from the box body 2 by releasing the hook-and-loop fasteners of the top surface 3 from the upper edge of the box body 2. For example, the top surface 3 may be removed in the order of the first surface 31 and then the second surface 32.

[0047] 10, the hook-and-loop fasteners of the heat insulating material 4 are released from the portion of the box body 2 facing the internal space 20, thereby removing the heat insulating material 4 from the box body 2. For example, the heat insulating material 4 may be removed while being folded.

[0048] Next, as shown in Fig. 11, the released insulating material 4 is lifted and removed from the box body 2. For example, one worker may support the box body 2 while the other worker lifts the insulating material 4 and removes it from the box body 2.

[0049] Next, as shown in Fig. 12, the box body 2 from which the heat insulating material 4 has been removed is pushed inward in the width direction. For example, two workers may support the box body 2 while pushing both left and right side portions of the box body 2 (corresponding to the second side surface portion 22 and the fourth side surface portion 24) inward.

[0050] Next, as shown in Figures 13 and 14, the box body 2 is folded inward in the depth direction. For example, two workers may support the box body 2 while folding the front side portion of the box body 2 (corresponding to the first side surface portion 21) inward. For example, the first side surface portion 21 and then the top surface portion 3 may be folded in this order.

[0051] 15, the insulating material 4 exposed to the outside of the box body 2 is placed on top of the folded box body 2 and the top surface 3. For example, the insulating material 4 may be placed on the folded box body 2 and the top surface 3 so that the edges in the width direction are aligned with each other.

[0052] Next, as shown in Fig. 16, the hook and loop fasteners on the folded box body 2 and the top surface portion 3 are fastened to the placed insulating material 4, thereby attaching the insulating material 4 to the box body 2. For example, two workers may fasten the hook and loop fasteners from both sides in the width direction.

[0053] By following the above procedure, the refrigerated container 1 can be folded as shown in FIG. In addition, when returning the folded refrigerated container 1 to an upright state (the state before the refrigerated container 1 was folded), the above steps can be reversed.

[0054] <Palette> Fig. 18 is a perspective view of the pallet 10 of the embodiment. Fig. 19 is a cross-sectional view taken along the line XIX in Fig. 18 . 18 and 19, the pallet 10 is configured so that it can be integrated with the refrigerated container 1 using a pair of belts 7A and a plurality of hook-and-loop fasteners 11. By integrating the pallet 10 with the refrigerated container 1, cargo can be efficiently transferred when changing transportation methods, for example, from land to air or from air to land. This improves workability at switching points when switching between transportation modes. Regarding refrigeration, no refrigeration facilities (equipment) are required at switching points to prevent exposure to outside temperatures. This is therefore advantageous from the standpoints of economy and environment.

[0055] Hook and loop fasteners are provided on the adhesive surfaces of the refrigerated container 1 and the pallet 10. Hook and loop fasteners are provided on both the refrigerated container 1 and the pallet 10. The hook and loop fastener 11 on the pallet 10 side is provided on the top surface of the pallet 10. The hook and loop fastener (not shown) on the refrigerated container 1 side is provided on the bottom surface (bottom surface portion 25) of the refrigerated container 1 at a portion corresponding to the hook and loop fastener 11 on the pallet 10 side.

[0056] Belt 7A is arranged to pass through gaps 10h in the pallet 10. Hook-and-loop fasteners 7A1 and 7A2 are provided on one side of belt 7A. Belt 7A is attached to pallet 10 by passing it through gaps 10h in the pallet 10 and adhering hook-and-loop fasteners 7A1 and 7A2 together. When belt 7A is attached to pallet 10, at least a portion of hook-and-loop fastener 7A1 is exposed. Note that hook-and-loop fastener 7A1 (the exposed portion in FIG. 19) may be used to secure refrigerated container 1 when folded. Furthermore, gaps in prefabricated pallets may be utilized when installing belt 7A (hook-and-loop fasteners 7A1 and 7A2).

[0057] Pallet 10 is formed in a rectangular shape in a plan view. Belts 7A are provided at positions corresponding to the four corners of pallet 10 in a plan view. At least some of the multiple hook-and-loop fasteners 11 are provided lined up in the Y direction in the central part of pallet 10 in a plan view. At least some of the multiple hook-and-loop fasteners 11 are provided in the central part of pallet 10 in the Y direction on both ends of pallet 10 in the X direction in a plan view. This allows the pallet 10 and the refrigerated container 1 to be more firmly bonded together, preventing them from shifting or falling off.

[0058] <Action and effect> As described above, the refrigerated container 1 in the above embodiment includes the box body 2, which is formed in the shape of a bottomed box enclosing the internal space 20 capable of accommodating items and which includes the heat insulating material 4 in at least a portion thereof, and the top surface portion 3, which is provided on the top surface of the box body 2 on the side opposite to the bottom surface. The top surface portion 3 includes the top surface main body 30, which is partially formed with the opening 30h that communicates with the internal space 20, and the lid body 35, which is provided so as to be displaceable between a closed state that closes the opening 30h and an open state that opens the opening 30h. According to this configuration, opening 30h is formed in a part of top body 30, so that even when lid 35 is displaced to the open state, the top of box body 2 is partially opened. Therefore, the entire top of box body 2 is not opened. Therefore, it is possible to provide a refrigerated container 1 that can reduce the risk of items stored in internal space 20 being exposed to the outside air.

[0059] In the above embodiment, the formation area of ​​the opening 30h is smaller than the formation area of ​​the top surface main body 30 in a plan view of the top surface portion 3. With this configuration, the risk of items stored in the internal space 20 being exposed to the outside air can be more effectively reduced compared to when the formation area of ​​the opening 30h is larger than the formation area of ​​the top surface main body 30 when viewed in a plane.

[0060] In the above embodiment, in a plan view of the top surface 3, the top surface 3 includes a first surface 31, a second surface 32 provided at a position different from the first surface 31, and a fold portion 33 provided at the boundary between the first surface 31 and the second surface 32 and enabling the top surface 3 to bend. The lid 35 is provided at a position different from the fold portion 33 in a plan view. According to this configuration, the lid 35 is provided at a position different from the fold line 33 in a plan view, so that the lid 35 does not get in the way even when the top surface 3 is bent. Therefore, the top surface 3 can be bent smoothly.

[0061] In the above embodiment, the box body 2 includes a first side surface portion 21, a second side surface portion 22, a third side surface portion 23, and a fourth side surface portion 24. When the top surface portion 3 is removed from the box body 2, at least one of the first side surface portion 21, the second side surface portion 22, the third side surface portion 23, and the fourth side surface portion 24 is configured so that an upper portion in the vertical direction can be bent outward relative to a lower portion. According to this configuration, at least one side portion is configured so that the upper portion in the vertical direction can be bent outward relative to the lower portion, allowing access to the internal space 20 through the open portion of the bent upper portion. For example, if the worker is short, he or she can take items in and out of the internal space 20 through the open portion of the bent upper portion. On the other hand, if the worker is tall, he or she can take items in and out of the internal space 20 through the open portion on the top (top surface) without having to bend the upper portion.

[0062] In the above embodiment, the ice pack storage section 8 is provided on the inside of at least two of the first side surface section 21, the second side surface section 22, the third side surface section 23 and the fourth side surface section 24 that face each other. According to this configuration, compared to a case where ice pack storage sections 8 are provided only on the inside of two adjacent side surfaces, internal space 20 can be more effectively and stably kept cool.

[0063] <Modification> In the above embodiment, an example has been described in which the area where the opening is formed is smaller than the area where the top surface body is formed in a plan view of the top surface portion, but this is not limited to this. For example, the area where the opening is formed may be larger than the area where the top surface body is formed in a plan view of the top surface portion. The size relationship between the area where the opening is formed and the area where the top surface body is formed can be changed according to design specifications.

[0064] In the above embodiment, an example has been described in which, in a plan view of the top surface, the top surface includes a first surface, a second surface provided at a position different from the first surface, and a fold line provided at the boundary between the first surface and the second surface and enabling the top surface to be bent, and the lid is provided at a position different from the fold line in a plan view. However, this is not limiting. For example, the lid may be provided at the same position (overlapping position) as the fold line in a plan view. The manner in which the lid is installed relative to the fold line can be changed according to design specifications.

[0065] In the above embodiment, the box includes a first side surface portion, a second side surface portion, a third side surface portion, and a fourth side surface portion, and when the top surface portion is removed from the box, at least one of the first side surface portion, the second side surface portion, the third side surface portion, and the fourth side surface portion is configured so that the upper portion in the vertical direction can be bent outward relative to the lower portion. However, this is not limited to this. For example, each side surface portion may be configured to be unbendable. The configuration of each side surface portion can be changed according to design specifications.

[0066] In the above embodiment, an example has been described in which the ice pack storage unit is provided on the inside of at least two of the first, second, third, and fourth side surfaces that face each other, but this is not limiting. For example, the ice pack storage unit may be provided only on the inside of two adjacent side surfaces. The manner in which the ice pack storage unit is installed on the side surfaces can be changed according to design specifications.

[0067] The above describes preferred embodiments of the present invention, but the present invention is not limited to these, and additions, omissions, substitutions, and other modifications to the configuration are possible within the scope of the spirit of the present invention, and the above-mentioned modifications can also be combined as appropriate. [Explanation of symbols]

[0068] 1 refrigerated container 2 box body 3 Top section 4. Insulation 8 Ice pack storage section 20 Interior Space 21 1st side face 21A Upper part of the first side 21B Lower part of the first side 22 Second side face 23 3rd side face 24 4th side face 30 Celestial body 30h opening 31 First face 32 Second face 33 Orimabe 35 cover

Claims

1. a box body formed in a bottomed box shape that encloses an internal space capable of accommodating an item, and at least a portion of which contains a thermal insulating material; a top surface portion provided on a top surface of the box body opposite to the bottom surface, The top portion is a top surface body having an opening communicating with the internal space formed in a part thereof; a cover body that is displaceable between a closed state that closes the opening and an open state that opens the opening, Refrigerated container.

2. In a plan view of the top surface portion, a formation area of ​​the opening is smaller than a formation area of ​​the top surface body. The refrigerated container according to claim 1.

3. In a plan view of the top surface portion, the top surface portion is A first surface portion; a second surface portion provided at a position different from the first surface portion; a fold portion provided at the boundary between the first surface portion and the second surface portion, which allows the top surface portion to bend; The lid body is provided at a position different from the fold portion in the plan view. The refrigerated container according to claim 1 or 2.

4. the box body includes a first side surface portion, a second side surface portion, a third side surface portion, and a fourth side surface portion, When the top surface portion is removed from the box body, at least one of the first side surface portion, the second side surface portion, the third side surface portion, and the fourth side surface portion is configured so that an upper portion in a vertical direction can be bent outward relative to a lower portion. The refrigerated container according to claim 1 or 2.

5. the box body includes a first side surface portion, a second side surface portion, a third side surface portion, and a fourth side surface portion, a cooling agent storage section is provided on the inside of at least two of the first side surface section, the second side surface section, the third side surface section, and the fourth side surface section that face each other; The refrigerated container according to claim 1 or 2.

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