JP2022102400A - Heat insulating container capable of being assembled and folded - Google Patents

Abstract

To provide a heat insulating container capable of preventing a top face panel from falling inside the heat insulating container only by being assembled.SOLUTION: A heat insulating container 10 comprises a top face panel 11, a bottom panel 12, a first side panel 13, a second side panel 14, a third side panel 15, and a fourth side panel 16. In a state where the heat insulating container 10 is assembled, the top face panel 11 and the bottom panel 12 face each other, the first side panel 13 and the second side panel 14 face each other, and the third side panel 15 and the fourth side panel 16 face each other. The top face panel 11 can be folded into two inward, and is connected in a hinge shape to each of the first side panel 13 and the second side panel 14. A cover member 40 is disposed so as to cover the top face panel 11. The cover member 40 is connected to the first side panel 13 and the second side panel 14. In an assembled state, the cover member 40 holds the top face panel 11 in an open state.SELECTED DRAWING: Figure 1

Description

The present embodiment relates to a heat insulating container that can be assembled and folded.

Insulation containers using heat insulating materials are mainly used for transporting articles while keeping them cold by means of transportation such as a cold storage vehicle that does not have a cold insulation function. In addition, in order to prevent radiant heat from sunlight and the like from reaching the inside of the heat insulating container, the heat insulating container is covered with a heat insulating sheet having the property of reflecting visible light and infrared rays to enhance the cooling effect of the heat insulating container. Can be done. Further, conventionally, a foldable heat insulating container including a heat insulating panel is known (see Patent Document 1).

Japanese Unexamined Patent Publication No. 10-287372

In a foldable heat insulating container, if the top panel is folded in half, the top panel may bend under its own weight and fall inside the heat insulating container.

The present disclosure provides a heat insulating container capable of preventing the top panel from falling inside the heat insulating container simply by assembling the heat insulating container.

The heat insulating container according to the present embodiment is a heat insulating container that can be assembled and folded, and is a top panel, a bottom panel, a first side panel, a second side panel, a third side panel, and a fourth. In the assembled state in which the heat insulating container is assembled with the side panel, the top panel and the bottom panel face each other, and the first side panel and the second side panel face each other. The three side panels and the fourth side panel face each other, and the top panel can be folded in half toward the inside and hinged with respect to the first side panel and the second side panel, respectively. A cover member is provided so as to be connected and cover the top panel, the cover member is connected to the first side panel and the second side panel, and the cover member is connected to the top panel in the assembled state. Keep the face panel open.

In the heat insulating container according to the present embodiment, the top panel may be located above the first side panel and the second side panel.

In the heat insulating container according to the present embodiment, the cover member may be detachably connected to the first side surface panel and the second side surface panel.

In the heat insulating container according to the present embodiment, the cover member may be sandwiched between the folded top panels in a folded state in which the heat insulating container is folded.

In the heat insulating container according to the present embodiment, the top surface panel may be composed of two top surface partial panels having equal widths from each other.

In the heat insulating container according to the present embodiment, the third side panel and the fourth side panel may be foldably connected to the first side panel or the second side panel, respectively.

In the heat insulating container according to the present embodiment, the third side panel can be folded in half toward the outside, and is hinged to the first side panel or the second side panel to form the fourth side panel. The side panel may be folded in half toward the outside and may be hingedly connected to the first side panel or the second side panel.

In the heat insulating container according to the present embodiment, a shape-retaining member for holding the shape of the corner portion of the top panel may be provided on the outer surface of the top panel.

According to this embodiment, it is possible to prevent the top panel from falling inside the heat insulating container only by assembling the heat insulating container.

It is a perspective view which shows the insulation container (assembled state) by one Embodiment. It is an exploded perspective view which shows the state which each panel of the insulation container is removed according to one Embodiment. It is a front view which shows the insulation container (assembled state) by one Embodiment. It is a top view which shows the insulation container (assembled state) by one Embodiment. It is a perspective view which shows the insulation container in the state between the assembled state and the folded state. It is a perspective view which shows the insulation container (folded state) by one Embodiment. It is a front view which shows the insulation container (folded state) by one Embodiment. It is a top view which shows the insulation container (folded state) by one Embodiment. It is a schematic front view which shows a part of a heat insulating container. It is a schematic front view which shows a part of the insulation container during transition from a folded state to an assembled state of an insulation container. It is a schematic front view which shows a part of the insulation container by 1st modification. It is a perspective view which shows the insulation container by the 2nd modification.

Hereinafter, one embodiment will be described with reference to the drawings. Each figure shown below is schematically shown. Therefore, the size and shape of each part are exaggerated as appropriate to facilitate understanding. In addition, it is possible to change and implement as appropriate within the range that does not deviate from the technical idea. In each of the figures shown below, the same parts are designated by the same reference numerals, and some detailed description may be omitted. Further, the numerical values and material names such as the dimensions of each member described in the present specification are examples of the embodiment, and are not limited to these, and can be appropriately selected and used. In the present specification, terms that specify a shape or a geometric condition, such as parallel, orthogonal, and vertical, are used to include substantially the same state in addition to the exact meaning.

Further, in the following embodiments, the "X direction" is a direction parallel to the left and right of the heat insulating container and parallel to the floor surface on which the heat insulating container is arranged when viewed from the front, and the "Y direction" is the X direction. It is perpendicular to the direction and parallel to the floor on which the insulation container is placed. The "Z direction" is a direction parallel to the vertical direction. Further, the "front" is a surface perpendicular to the floor surface, and mainly refers to a surface facing the user when putting the contents in and out of the heat insulating container, and the "back surface" is a surface perpendicular to the floor surface. It means the surface facing the front. The "top surface" is a surface parallel to the floor surface and refers to the upper surface of the heat insulating container, and the "bottom surface" is a surface parallel to the floor surface and is the lower surface of the heat insulating container. To say. The "right surface" is a surface perpendicular to the floor surface and is located on the right side of the heat insulating container when viewed from the front, and the "left surface" is a surface perpendicular to the floor surface and is viewed from the front. The surface located on the left side of the heat insulating container. "Side" means a surface perpendicular to the top and bottom surfaces.

(Composition of heat insulating container)
The configuration of the heat insulating container according to the present embodiment will be described with reference to FIGS. 1 to 8.

As shown in FIGS. 1 and 2, the heat insulating container 10 that can be assembled and folded according to the present embodiment includes six panels 11 to 16. The panels 11 to 16 have a substantially rectangular parallelepiped shape in an assembled state, and include a top panel 11, a bottom panel 12, a right panel 13, a left panel 14, a front panel 15, and a back panel 16. I'm out. Further, a cover member 40 is provided so as to cover the top panel 11. The cover member 40 is connected to the right side panel 13 and the left side panel 14. The cover member 40 holds the top panel 11 in an open state in the assembled state.

The top panel 11, the bottom panel 12, the right panel 13, the left panel 14, the front panel 15, and the back panel 16 are the main surfaces (the widest of the six surfaces constituting each panel). The pair of facing surfaces) have a substantially rectangular shape or a substantially square shape, respectively. Further, the right side panel 13 and the left side panel 14 have substantially the same size as their main surfaces, and the front panel 15 and the back panel 16 have substantially the same size as their main surfaces. There is. The main surface of the top panel 11 is larger than the main surface of the bottom panel 12. Each of the panels 11 to 16 is made of a plate-shaped member having rigidity, so as not to be flexibly deformed during use.

The panels 11 to 16 are provided so as to be freely assembled and foldable as a whole, and take a box-shaped assembled state (FIGS. 1 to 4) and a small folded state (FIGS. 6 to 8). be able to.

When the heat insulating container 10 is in the assembled state, the top panel 11 and the bottom panel 12 face each other, the right panel 13 and the left panel 14 face each other, and the front panel 15 and the back panel 16 face each other. Further, the top panel 11 is located above the right panel 13 and the left panel 14. Further, the bottom panel 12 is sandwiched between the right panel 13 and the left panel 14. The fitting portion 15f of the front panel 15 and the fitting portion 16f of the back panel 16 are surrounded by the top panel 11, the bottom panel 12, the right panel 13, and the left panel 14, respectively.

The front panel 15 and the back panel 16 are foldably connected to the right side panel 13, respectively. However, the present invention is not limited to this, and the front panel 15 and the back panel 16 may be foldably connected to the left side panel 14, respectively. Alternatively, either one of the front panel 15 and the back panel 16 may be foldably connected to the right side panel 13 and the other may be foldably connected to the left side panel 14.

The top panel 11 is composed of two top partial panels 11c and 11d, and can be folded in half toward the inside. The top panel 11 is hingedly connected to the right panel 13 and the left panel 14, respectively. Further, the bottom panel 12 is composed of two bottom partial panels 12c and 12d, and can be folded in half toward the inside. The bottom panel 12 is hingedly connected to the right panel 13 and the left panel 14, respectively.

The front panel 15 is composed of two front partial panels 15c and 15d, and can be folded in half toward the outside. The front panel 15 is hingedly connected to the right panel 13. The front panel 15 may be hingedly connected to the left panel 14.

The back panel 16 is composed of two back partial panels 16c and 16d, and can be folded in half toward the outside. The back panel 16 is hingedly connected to the right panel 13. The back panel 16 may be hingedly connected to the left panel 14.

Here, "it is possible to fold in half toward the inside" means that when the panel is folded in two, the bent portion faces the inside (accommodation space 20 side) and the outer surfaces of the partial panels face each other. Say. Further, "it is possible to fold in half toward the outside" means that when the panel is folded in two, the bent portion faces the outside (opposite side of the accommodation space 20), and the inner surfaces of the partial panels face each other. To say.

Each of the panels 11 to 16 has an outer surface and an inner surface, respectively. Specifically, the top panel 11 has an inner surface 11a and an outer surface 11b, and the bottom panel 12 has an inner surface 12a and an outer surface 12b. Further, the right surface panel 13 has an inner surface 13a and an outer surface 13b, and the left surface panel 14 has an inner surface 14a and an outer surface 14b. Further, the front panel 15 has an inner surface 15a and an outer surface 15b, and the back panel 16 has an inner surface 16a and an outer surface 16b.

As shown in FIG. 5, the inner surface 11a of one top panel 11c and the inner surface 13a of the right panel 13 are connected in a hinge shape, and the inner surface 11a of the other top panel 11d and the inner surface 14a of the left panel 14 are connected. And are connected in a hinge shape. Further, the inner surface 12a of one bottom surface panel 12c and the inner surface 13a of the right side panel 13 are connected in a hinge shape, and the inner surface 12a of the other bottom surface portion panel 12d and the inner surface 14a of the left side panel 14 are connected in a hinge shape. Has been done.

In the present embodiment, the right side panel 13 corresponds to the first side panel, the left side panel 14 corresponds to the second side panel, the front panel 15 corresponds to the third side panel, and the back panel 16 corresponds to the fourth side panel. Corresponds to the side panel. It is sufficient that the first side panel and the second side panel face each other, and the third side panel and the fourth side panel face each other, and the panels 13 to 16 are the first side panel and the second side surface. It may correspond to any of a panel, a third side panel and a fourth side panel.

In the assembled state, the heat insulating container 10 is surrounded by the six panels 11 to 16 to form a substantially rectangular parallelepiped storage space 20 (see FIG. 2) for storing the load. Further, each of the six panels 11 to 16 includes a heat insulating panel, as will be described later. Therefore, the accommodation space 20 is surrounded by a heat insulating material, so that the inflow and outflow of heat from the outside are restricted, and the heat insulating property can be maintained. Further, the six panels 11 to 16 are provided so as to be movable with respect to any of the other adjacent panels 11 to 16. Thereby, the heat insulating container 10 can be changed from the assembled state in which the accommodating space 20 is formed to the folded state in which the accommodating space 20 is not formed, and can be changed from the folded state to the assembled state. Therefore, when the heat insulating container 10 is not used, the panels 11 to 16 can be folded to store the panels 11 to 16 in a smaller size than in the assembled state. Further, in the assembled state, the peripheral edges of each of the six panels 11 to 16 are in close contact with any of the other panels 11 to 16, whereby the airtightness of the accommodation space 20 is ensured.

Next, the configuration of each of the panels 11 to 16 will be further described. In the following, "panels 11 to 16 are parallel (vertical) to a predetermined surface" means "the main surface of panels 11 to 16 is parallel (vertical) to a predetermined surface". Means. Further, the "inner surface" refers to the surface of the main surfaces of the panels 11 to 16 facing outward in the assembled state, and the "outer surface" refers to the surface facing outward in the assembled state. The main surface of each panel 11 to 16 and each side surface perpendicular to the main surface.

(Top panel)
The top panel 11 is a panel located on the top side (plus side in the Z direction) in the assembled state (FIGS. 1 to 4), and is arranged parallel to the horizontal plane (XY plane). Further, in the assembled state, the top panel 11 is arranged above the bottom panel 12, the right panel 13, the left panel 14, the front panel 15, and the back panel 16 (plus side in the Z direction).

As described above, the top panel 11 is composed of two top partial panels 11c and 11d, and can be folded in half. The top surface partial panels 11c and 11d are each composed of plate-shaped members. Further, one top surface portion panel 11c is foldably attached to the right surface panel 13 via the first hinge member 21, and the other top surface portion panel 11d is attached to the left surface panel 14 via the second hinge member 22. It is attached so that it can be folded freely. The first hinge member 21 hinges the inner surface 11a of one of the top surface partial panels 11c and the upper end of the inner surface 13a of the right surface panel 13. The second hinge member 22 hinges the upper end of the inner surface 14a of the left surface panel 14 and the inner surface 11a of the other top surface portion panel 11d. The two top surface partial panels 11c and 11d are foldably attached to each other via the top surface bent portion 11g. The top surface bent portion 11g connects the outer surfaces 11b of the two top surface portion panels 11c and 11d in a hinge shape.

In the present specification, "the hinge member C connects the panel A and the panel B in a hinge shape" means that the panel A and the panel B can be relatively rotated around the hinge member C as a rotation axis. It means that you are. It is preferable that the distance between the panel A and the panel B in the hinge member C does not substantially change during the rotation between the panel A and the panel B.

When the two top surface partial panels 11c and 11d shift from the assembled state to the folded state (FIGS. 6 to 8), they rotate around the top surface bent portion 11g and rotate to the front side (minus side in the Y direction). It bends in a V shape when viewed from. Further, one of the top surface partial panels 11c rotates with respect to the right surface panel 13, and the inner surface 11a thereof contacts the inner surface 13a of the right surface panel 13. Further, the other top surface partial panel 11d rotates with respect to the left surface panel 14, and the inner surface 11a thereof contacts the inner surface 14a of the left surface panel 14. At this time, the outer surfaces 11b of the two top surface partial panels 11c and 11d face each other.

As shown in FIG. 3, the widths W1 and W2 (lengths in the X direction) of the two top surface partial panels 11c and 11d are preferably equal to each other (W1 = W2). As a result, when the panels 11 to 16 are folded, the right side panel 13 and the left side panel 14 are folded so as to overlap each other, and the heat insulating container 10 can be compactly folded.

In the assembled state, the top panel 11 is arranged above the right panel 13 and the left panel 14, but is not limited thereto. In the assembled state, the top panel 11 may be arranged so as to be sandwiched between the right panel 13 and the left panel 14. In this case, the main surface of the top panel 11 and the bottom panel 12 may have substantially the same size as each other.

(Bottom panel)
The bottom panel 12 is a panel located on the bottom side (minus side in the Z direction) in the assembled state (FIGS. 1 to 4), and is arranged parallel to the horizontal plane (XY plane). Further, in the assembled state, the bottom panel 12 is arranged below the top panel 11 (minus side in the Z direction) and is surrounded by the right panel 13, the left panel 14, the front panel 15, and the rear panel 16. Will be done.

As described above, the bottom panel 12 is composed of two bottom partial panels 12c and 12d, and can be folded in half. The bottom surface partial panels 12c and 12d are each composed of a plate-shaped member. Further, one bottom surface portion panel 12c is foldably attached to the right surface panel 13 via the third hinge member 23, and the other bottom surface portion panel 12d is foldably attached to the left surface panel 14 via the fourth hinge member 24. It is foldable and attached. The third hinge member 23 connects the inner surface 12a of one of the bottom surface partial panels 12c and the inner surface 13a of the right side panel 13 in a hinge shape. The fourth hinge member 24 connects the inner surface 14a of the left panel 14 and the inner surface 12a of the other bottom surface partial panel 12d in a hinged manner. The two bottom surface partial panels 12c and 12d are foldably attached to each other via the bottom surface bent portion 12g. The bottom bent portion 12g connects the outer surfaces 12b of the two bottom partial panels 12c and 12d in a hinge shape.

When the two bottom surface partial panels 12c and 12d shift from the assembled state to the folded state (FIGS. 6 to 8), they rotate around the bottom bent portion 12 g and are viewed from the front side (minus side in the Y direction). It bends in an inverted V shape. Further, one bottom surface portion panel 12c rotates with respect to the right surface panel 13, and its inner surface 12a comes into contact with the inner surface 13a of the right surface panel 13. Further, the other bottom surface partial panel 12d rotates with respect to the left surface panel 14, and its inner surface 12a comes into contact with the inner surface 14a of the left surface panel 14. At this time, the outer surfaces 12b of the two bottom surface partial panels 12c and 12d come into contact with each other.

As shown in FIG. 3, the widths W3 and W4 (length in the X direction) of the two bottom surface partial panels 12c and 12d are preferably equal to each other (W3 = W4). As a result, when the panels 11 to 16 are folded, the right side panel 13 and the left side panel 14 are folded so as to overlap each other, and the heat insulating container 10 can be compactly folded. The widths W3 and W4 of the bottom surface partial panels 12c and 12d are shorter than the widths W1 and W2 of the top surface portion panels 11c and 11d described above (W1 = W2> W3 = W4).

(Right panel)
The right panel 13 is a panel located on the right side (plus side in the X direction) in the assembled state (FIGS. 1 to 4), and is arranged perpendicular to the horizontal plane (XY plane). Further, in the assembled state, the right side panel 13 is arranged below the top surface panel 11 (minus side in the Z direction), and is arranged on the right side side (plus side in the X direction) of the bottom surface panel 12 and the left side panel 14. To.

The right side panel 13 is composed of a single plate-shaped member. Further, on the right side panel 13, one top surface portion panel 11c is foldably attached via the first hinge member 21, and one bottom surface portion panel 12c is foldably attached via the third hinge member 23. There is.

The right side panel 13 comes into contact with the inner surface 11a of one top surface portion panel 11c and the inner surface 12a of one bottom surface portion panel 12c in the folded state (FIGS. 6 to 8). Further, the right side panel 13 comes into contact with the outer surface 15b of one front portion panel 15c and the outer surface 16b of one back portion panel 16c in the folded state.

(Left panel)
The left panel 14 is a panel located on the left side (minus side in the X direction) in the assembled state (FIGS. 1 to 4), and is arranged perpendicular to the horizontal plane (XY plane). Further, in the assembled state, the left panel 14 is arranged below the top panel 11 (minus side in the Z direction), and is arranged on the left side side (minus side in the X direction) of the bottom panel 12 and the right panel 13. To.

The left panel 14 is composed of a single plate-shaped member. Further, the other top surface portion panel 11d is foldably attached to the left surface panel 14 via the second hinge member 22, and the other bottom surface portion panel 12d is foldably attached via the fourth hinge member 24. There is.

The left panel 14 comes into contact with the inner surface 11a of the other top surface portion panel 11d and the inner surface 12a of the other bottom surface portion panel 12d in the folded state (FIGS. 6 to 8). At this time, the left panel 14 is arranged on the outermost surface side (minus side in the X direction) of the folded heat insulating container 10.

(Front panel)
The front panel 15 is a panel located on the front side (minus side in the Y direction) in the assembled state (FIGS. 1 to 4), and is arranged perpendicular to the horizontal plane (XY plane). The front panel 15 has a door portion 15e located on the outside and a fitting portion 15f protruding inward from the door portion 15e. In the assembled state, the fitting portion 15f is arranged so as to be surrounded by the top panel 11, the bottom panel 12, the right panel 13, and the left panel 14.

As described above, the front panel 15 is composed of two front partial panels 15c and 15d, and can be folded in half. The fitting portion 15f of the front portion panels 15c and 15d is each composed of a plate-shaped member. Further, the door portion 15e of one of the front partial panels 15c is foldably attached to the right side panel 13 via the fifth hinge member 25. The fifth hinge member 25 connects the outer surface 15b of one front surface panel 15c and the outer surface 13b of the right side panel 13 in a hinge shape. Further, the two front partial panels 15c and 15d are foldably attached to each other via the front bent portion 15g. The front bent portion 15g connects the inner surfaces 15a of the two front partial panels 15c and 15d in a hinge shape.

When the two front partial panels 15c and 15d shift from the assembled state to the folded state (FIGS. 6 to 8), they rotate around the front bent portion 15 g and rotate from the top surface side (plus side in the Z direction). It bends in a V shape when you see it. At this time, the inner surfaces 15a of the two front partial panels 15c and 15d come into contact with each other. Therefore, since the inner surface 15a of the front panel 15 is not exposed to the outside in the folded state, the inner surface 15a is less likely to get dirty and is hygienic.

As shown in FIG. 3, it is preferable that the widths W5 and W6 (lengths in the X direction) of the two front partial panels 15c and 15d are different from each other. In this case, the width W5 of one front partial panel 15c is larger than the width W6 of the other front partial panel 15d. Therefore, in the assembled state, the front bent portion 15 g of the front panel 15 and the top bent portion 11 g of the top panel 11 (the bottom bent portion 12 g of the bottom panel 12) are present at positions displaced from each other. .. As a result, it is possible to prevent the airtightness of the accommodation space 20 from being lowered due to the overlap of the front bent portion 15 g and the top bent portion 11 g (bottom bent portion 12 g). The distance d1 (distance in the X direction) between the front bent portion 15 g and the top bent portion 11 g (bottom bent portion 12 g) may be 5 mm or more and 40 mm or less, and is preferably 10 mm or more and 20 mm or less.

The front panel 15 is provided with an ear portion 15h along the outer periphery thereof. The selvage portion 15h contacts each end edge (a surface perpendicular to the main surface) of the panels 11 to 14 in the assembled state. Further, as described above, the front panel 15 has a door portion 15e located on the front side (minus side in the Y direction) of the panels 11 to 14 and a fitting portion 15f protruding inward from the door portion 15e. There is. The fitting portion 15f has a rectangular shape when viewed from the front surface (minus side in the Y direction). In the assembled state, the fitting portion 15f is fitted inside the panels 11 to 14 and comes into contact with the inner surfaces 11a to 14a of the panels 11 to 14, respectively. Further, the door portion 15e has a rectangular shape when viewed from the front, and is larger than the fitting portion 15f. The portion of the door portion 15e that protrudes from the fitting portion 15f to the outer periphery constitutes the selvage portion 15h described above. As a result, the adhesion between the door portion 15e and each end edge of the panels 11 to 14 can be improved. The door portion 15e is hingedly connected to the outer surface 13b of the right side panel 13 by using the fifth hinge member 25.

(Back panel)
The back panel 16 is a panel located on the back side (plus side in the Y direction) in the assembled state (FIGS. 1 to 4), and is arranged perpendicular to the horizontal plane (XY plane). The back panel 16 has a door portion 16e located on the outside and a fitting portion 16f protruding inward from the door portion 16e. In the assembled state, the fitting portion 16f is arranged so as to be surrounded by the top panel 11, the bottom panel 12, the right panel 13, and the left panel 14.

As described above, the back panel 16 is composed of two back partial panels 16c and 16d, and can be folded in half. The fitting portion 16f of the back surface partial panels 16c and 16d is each composed of a plate-shaped member. Further, the door portion 16e of one of the back surface partial panels 16c is foldably attached to the right side panel 13 via the sixth hinge member 26. The sixth hinge member 26 connects the outer surface 16b of one of the back surface partial panels 16c and the outer surface 13b of the right side panel 13 in a hinge shape. Further, the two back surface partial panels 16c and 16d are foldably attached to each other via the back surface bent portion 16g. The back bent portion 16g connects the inner surfaces 16a of the two back partial panels 16c and 16d in a hinge shape.

When the two back surface partial panels 16c and 16d shift from the assembled state to the folded state (FIGS. 6 to 8), they rotate around the back bent portion 16 g and rotate from the top surface side (Z direction plus side). It bends in a V shape when you see it. At this time, the inner surfaces 16a of the two back surface partial panels 16c and 16d come into contact with each other. Therefore, since the inner surface 16a of the back panel 16 is not exposed to the outside in the folded state, the inner surface 16a is less likely to get dirty and is hygienic.

As shown in FIG. 4, it is preferable that the widths W7 and W8 (lengths in the X direction) of the two back surface partial panels 16c and 16d are different from each other. In this case, the width W7 of one back surface panel 16c is larger than the width W8 of the other back surface panel 16d. Therefore, in the assembled state, the back bent portion 16 g of the back panel 16 and the top bent portion 11 g of the top panel 11 (bottom bent portion 12 g of the bottom panel 12) are present at positions displaced from each other. .. As a result, it is possible to prevent the airtightness of the accommodation space 20 from being lowered due to the overlap of the back bent portion 16 g and the top bent portion 11 g (bottom bent portion 12 g). The distance d2 (distance in the X direction) between the back bent portion 16 g and the top bent portion 11 g (bottom bent portion 12 g) may be 5 mm or more and 40 mm or less, and is preferably 10 mm or more and 20 mm or less.

The rear panel 16 is provided with the selvage portion 16h along the outer periphery thereof. The selvage portion 16h contacts each end edge (a surface perpendicular to the main surface) of the panels 11 to 14 in the assembled state. Further, as described above, the back panel 16 has a door portion 16e located on the back side (plus side in the Y direction) of the panels 11 to 14 and a fitting portion 16f protruding inward from the door portion 16e. There is. The fitting portion 16f has a rectangular shape when viewed from the back surface (plus side in the Y direction). In the assembled state, the fitting portion 16f is fitted inside the panels 11 to 14 and comes into contact with the inner surfaces 11a to 14a of the panels 11 to 14, respectively. Further, the door portion 16e has a rectangular shape when viewed from the back surface, and is larger than the fitting portion 16f. The portion of the door portion 16e that protrudes from the fitting portion 16f to the outer periphery constitutes the selvage portion 16h described above. As a result, the adhesion between the door portion 16e and each end edge of the panels 11 to 14 can be improved. The door portion 16e is hingedly connected to the outer surface 13b of the right side panel 13 by using the sixth hinge member 26.

In the present embodiment, as described above, the cover member 40 is provided so as to cover the top panel 11. The cover member 40 is composed of a member having flexibility such as a plastic sheet, a band, a belt, and a cloth, and which can apply tension to the top panel 11 in an assembled state. The thickness of the cover member 40 may be 0.1 mm or more and 5 mm or less.

In the assembled state, the cover member 40 has an inverted U shape when viewed from the front side (minus side in the Y direction). The cover member 40 has a portion that covers the outer surface 11b of the top panel 11, a portion that covers the outer surface 13b of the right panel 13, and a portion that covers the outer surface 14b of the left panel 14. In the assembled state, the cover member 40 extends over the entire area of the top panel 11 in the left-right direction (X direction). Further, the cover member 40 may extend over at least half or more of a region of the top panel 11 in the front-rear direction (Y direction), or may extend over the entire area of the top panel 11 in the front-rear direction (Y direction).

The cover member 40 is connected to the right side panel 13 and the left side panel 14. That is, the cover member 40 is connected to the right side panel 13 by the right side connecting portion 41, and is connected to the left side panel 14 by the left side connecting portion 42. The right side connection portion 41 and the left side connection portion 42 may be composed of, for example, a sewn portion in which the cover member 40 is sewn on the panels 13 and 14. Alternatively, the right side connection portion 41 and the left side connection portion 42 may be composed of removable members such as a hook-and-loop fastener. When the cover member 40 is detachably connected to the panels 13 and 14, the tension can be appropriately adjusted when the cover member 40 is tensioned and attached to the panels 13 and 14. When the right side connection portion 41 and the left side connection portion 42 are composed of a hook-and-loop fastener or the like, it is preferable to cover the right side connection portion 41 and the left side connection portion 42 with tape or the like. As a result, it is possible to prevent the cover member 40 from being inadvertently removed except when adjusting the tension. In the present embodiment, the cover member 40 is not connected to the panels 11 to 16 at a place other than the right side connecting portion 41 and the left side connecting portion 42. That is, the cover member 40 is not directly connected to the top panel 11.

The cover member 40 holds the top panel 11 in an open state in the assembled state. That is, the right side panel 13 and the left side panel 14 are connected to each other by the cover member 40, and the top surface panel 11 is supported by the tension of the cover member 40 at this time. Therefore, in the assembled state, the top panel 11 does not bend in half due to its own weight. On the other hand, when changing from the assembled state to the folded state, the top panel 11 is bent in half against the tension of the cover member 40 by applying a force from above the cover member 40. Further, when changing from the folded state to the assembled state, the top panel 11 is horizontalized and held in the open state by the cover member 40 only by assembling the top panel 11. Therefore, it is not necessary to perform another operation for holding the top panel 11 horizontally.

In addition, each of the above-mentioned hinge members 21 to 26 may be composed of, for example, a sewn portion in which panels 11 to 16 are sewn together. Alternatively, each of the hinge members 21 to 26 may be composed of a connecting member such as a bendable connecting cloth, or may be composed of a resin hinge. In this case, it is preferable that the hinge members 21 to 26 rotate the panels 11 to 16 with each other without substantially changing the distance between the panels 11 to 16 to be connected. By keeping the distance between the connected panels 11 to 16 substantially unchanged, the positions of the panels 11 to 16 are displaced when the panels 11 to 16 are in the folded state (FIGS. 6 to 8). Each panel 11 to 16 can be stably held.

Further, a pocket (not shown) capable of accommodating a cooling agent may be provided on the inner surface side of the panels 11 to 16. The pocket is made of a flexible material such as cloth, and in the assembled state, protrudes toward the inner surface side of the panels 11 to 16 to form a space capable of accommodating the cooling agent. By accommodating the ice pack in the pocket in this way, the cold air from the ice pack descends and is sent to the load, and the cold insulation property of the accommodation space 20 is enhanced. On the other hand, in the folded state, the ice pack in the pocket is taken out, and then the pocket is folded. The pocket may be provided on any of the panels 11 to 16.

6 to 8 show the case where the panels 11 to 16 are in the folded state. As shown in FIGS. 6 to 8, in the folded state, each of the panels 11 to 16 is folded, and the thickness of the heat insulating container 10 in the left-right direction (X direction) is thinner than that in the assembled state (FIGS. 1 to 4). It has become. 6 to 8 show an example in which the panels 11 to 16 are arranged perpendicular to the horizontal plane (XY plane) (parallel to the YZ plane), but the present invention is not limited to this, and each panel is not limited to this. 11 to 16 may be located parallel to, for example, a horizontal plane (XY plane).

As shown in FIGS. 6 to 8, in the folded state, from the right side (plus side in the X direction), the front panel 15, the back panel 16, the right panel 13, the top panel 11, the bottom panel 12, and the left side. The panels 14 and the panels 14 overlap each other in this order.

In the folded state, the panels 11 to 16 are all located parallel to each other (parallel to the YZ plane). In this case, the panels 11 to 16 are not arranged diagonally with respect to the other panels 11 to 16 in the folded state. Therefore, it is difficult to apply an unnatural force to the panels 11 to 16, and it is possible to prevent the panels 11 to 16 from being deformed. In addition, a plurality of folded heat insulating containers 10 can be stacked. In this case, since the heat insulating container 10 is unlikely to be slanted, it is possible to prevent the plurality of stacked heat insulating containers 10 from collapsing. In addition, a plurality of heat insulating containers 10 can be efficiently accommodated.

In this folded state, the cover member 40 is in a loosened state and is bent along with the top panel 11 being folded. At this time, the cover member 40 covers the outer surface 11b of the top panel 11 and is sandwiched between the top panel 11c and 11d.

The thickness of each panel 11 to 16 can be 5 mm or more and 100 mm or less, respectively. The thickness of the panels 11 to 16 is preferably 20 mm or more and 60 mm or less, and more preferably 30 mm or more and 55 mm or less, respectively. In the present embodiment, the thicknesses of the panels 11 to 16 are the same as each other, but the thicknesses of the panels 11 to 16 may be different from each other. The "thickness" of each panel 11 to 16 means the length in the direction perpendicular to the main surface of each panel 11 to 16.

(Internal structure of the panel)
Next, the structures of the fitting portions 15f and 16f of the panels 11 to 14 and the panels 15 to 16 will be further described.

The fitting portions 15f and 16f of the panels 11 to 14 and the panels 15 to 16 are composed of heat insulating panels having heat insulating properties as described above. The heat insulating material used for such a heat insulating panel may be any material as long as it exhibits the desired heat insulating property, for example, fiber-based heat insulating materials such as glass wool, rock wool, polystyrene fiber, insulation board, wool, carbonized cork and the like. Natural material-based heat insulating materials, polyethylene foams such as extruded polystyrene and beaded polystyrene, polyurethane foams such as hard urethane foam, polyethylene foams such as highly foamed polyethylene, foamed heat insulating materials such as phenol foam, and vacuum heat insulating materials. And so on.

As the heat insulating material, corrugated plastic (hollow structure), polypropylene plastic pearl (registered trademark by Kawakami Sangyo Co., Ltd.), and polypropylene twin cone (registered trademark by Ube Exsymo Co., Ltd.) may be used. In this case, a corrugated plastic having a hollow structure made of polypropylene or the like can be used.

As the vacuum heat insulating material, a material having a core material and an exterior material may be used. As the core material, for example, a powder such as silica, a foam such as urethane polymer, or a porous body such as a fiber such as glass wool may be used. The exterior material is a member that covers the outer periphery of the core material, and a flexible sheet in which a core material, a heat welding layer, and a gas barrier layer are laminated in this order may be used. As the gas barrier layer, a metal foil, a thin-film deposition sheet in which a thin-film deposition layer is formed on one side of a resin sheet, or the like may be used. For the metal foil, for example, aluminum can be used. For the vapor deposition layer, for example, aluminum, aluminum oxide, or silicon oxide can be used. Further, the foam heat insulating material can be arranged adjacent to at least the accommodation space 20 side of the vacuum heat insulating material. Further, the heat insulating outer peripheral portion may be formed so as to surround the vacuum heat insulating material.

Further, the panels 11 to 16 may be made of a radio wave transmitting non-metal member. In this case, when the IC tag is arranged inside the heat insulating container 10, the information of the IC tag can be read from the outside of the heat insulating container 10 by a reading device via non-contact communication.

(Length of cover member)
Next, with reference to FIGS. 9A and 9B, the length of the cover member 40 when viewed from the front side will be described.

FIG. 9A is a front view showing a part of the heat insulating container 10 in the assembled state. As shown in FIG. 9A, in the assembled state, the outer surface 11h of the top panel 11c is on the same plane as the outer surface 13b of the right panel 13, and the outer surface 11h of the top panel 11d is the left surface. It is coplanar with the outer surface 14b of the panel 14. Further, in FIG. 9A, the width (length in the X direction) of the top surface partial panels 11c and 11d is L. The width L is assumed to be equal to the above-mentioned widths W1 and W2 (L = W1 = W2). Further, the thickness (length in the Z direction) of the top surface partial panels 11c and 11d is T. Further, the length D of the cover member 40 is the length of the portion of the cover member 40 that covers the top panel 11, and is the left panel from the upper end of the right panel 13 along the outer surface 11b of the top panel 11. It means the length up to the upper end of 14. At this time, the relationship of D ≧ 2 × (L + T) is established.

である。 FIG. 9B is a front view showing a state in which the strongest tension is applied to the cover member 40 (a state corresponding to FIG. 10B described later). As shown in FIG. 9B, the cover member 40 is stretched to a maximum length of 2 × (D1 + D2 + D3). In FIG. 9B, the diagonal lines Ld of the top surface partial panels 11c and 11d passing through the top surface bent portion 11g are in a horizontal state (parallel to the XY plane). Further, the angle formed by the outer surface 11b of the top surface partial panel 11d and the diagonal line Ld is defined as θ. At this time, D1 = Lcosθ and D2 = T.

Is.

Therefore, if the length D of the cover member 40 is less than 2 × (D1 + D2 + D3), the top panel 11 can be prevented from bending due to its own weight. From the above, it is preferable that the relationship of 2 × (L + T) ≦ D <2 × (D1 + D2 + D3) is established. As an example, when L = 300 mm and T = 40 mm, it is preferable that 680 mm ≦ D <685.3 mm.

The elongation of the cover member 40 may be caused by the elongation of the material itself of the cover member 40, the elongation of the right side connecting portion 41 and the left side connecting portion 42, the deformation of the panels 11, 13, 14 and the like.

(Folding and assembling of heat insulating container)
Next, the operation when the heat insulating container 10 is folded and assembled will be described.

(Assembly of heat insulating container)
First, the operation when the heat insulating container 10 in the folded state (see FIGS. 6 to 8) is unfolded and put into the assembled state (see FIGS. 1 to 4) will be described. The following series of operations are manually performed by the operator.

First, as shown in FIGS. 6 to 8, it is assumed that the six panels 11 to 16 are folded and the heat insulating container 10 is in the folded state.

Subsequently, the panels 11 to 14 are integrally deployed. At this time, the top panel 11c and 11d of the top panel 11 rotate with respect to the right panel 13 and the left panel 14, respectively, and the top panel 11 becomes a right angle to the right panel 13 and the left panel 14, respectively. .. Specifically, one of the top surface partial panels 11c rotates so as to be orthogonal to the right surface panel 13 via the first hinge member 21. Further, the other top surface portion panel 11d rotates so as to be orthogonal to the left surface panel 14 via the second hinge member 22. At this time, the top surface partial panels 11c and 11d are spread out via the top surface bent portion 11g and are in a horizontal state.

During this time, the cover member 40 is pushed up by the outer surface 11h of the top surface partial panels 11c and 11d from the state of being sandwiched between the top surface partial panels 11c and 11d and relaxed (FIG. 10A), and the cover member 40 is pushed up. The strongest tension is applied to (FIG. 10 (b)). In FIG. 10B, the diagonal lines Ld of the top surface partial panels 11c and 11d passing through the top surface bent portion 11g are horizontal (parallel to the XY plane), and at this time, the cover member 40 is most stretched. Has been done. When the top surface partial panels 11c and 11d are further expanded from this state, the top surface portion panels 11c and 11d become horizontal and become a stable state (FIG. 10 (c)). At this time, since the cover member 40 holds the top surface portion panels 11c and 11d in an open state, the top surface portion panels 11c and 11d do not bend under their own weight, and are in the state shown in FIG. 10A by their own weight. It will never be. In other words, under the weight of the top surface partial panels 11c and 11d, the cover member 40 is not stretched until the cover member 40 is in the most stretched state (FIG. 10 (b)), and the cover member 40 is not stretched. 11c and 11d do not reach the folded state (FIG. 10A).

On the other hand, the bottom partial panels 12c and 12d of the bottom panel 12 rotate with respect to the right side panel 13 and the left side panel 14, respectively, and the bottom surface panel 12 is perpendicular to the right side panel 13 and the left side panel 14. Specifically, one bottom surface portion panel 12c of the bottom surface panel 12 rotates so as to be orthogonal to the right surface panel 13 via the third hinge member 23. Further, the other bottom surface portion panel 12d of the bottom surface panel 12 rotates so as to be orthogonal to the left surface panel 14 via the fourth hinge member 24. At this time, the bottom surface portion panels 12c and 12d are spread out via the bottom surface bent portion 12g and are in a horizontal state. In this way, the panels 11 to 14 have a rectangular shape when viewed from the front.

Next, the front panel 15 is rotated with respect to the right panel 13, and the front panel 15 is moved to the front side (minus side in the Y direction) of the panels 11 to 14. Further, the front partial panels 15c and 15d are rotated with each other via the front bent portion 15g so that the front partial panels 15c and 15d are located on the same plane. At this time, the fitting portion 15f of the front panel 15 is fitted into the panels 11 to 14.

Similarly, the back panel 16 is rotated with respect to the right side panel 13, and the back panel 16 is moved to the back side (plus side in the Y direction) of the panels 11 to 14. Further, the back surface partial panels 16c and 16d are rotated with each other via the back surface bent portion 16g so that the back surface partial panels 16c and 16d are located on the same plane. At this time, the fitting portion 16f of the back panel 16 is fitted into the panels 11 to 14.

In this way, the six panels 11 to 16 of the heat insulating container 10 are in the assembled state shown in FIGS. 1 to 4 as a whole.

(Folding of heat insulating container)
The method of folding the heat insulating container 10 can be performed in the reverse order of the above-mentioned assembly method. The following series of operations are manually performed by the operator.

First, as shown in FIGS. 1 to 4, it is assumed that the six panels 11 to 16 are assembled and the heat insulating container 10 is in the assembled state.

First, as shown in FIG. 5, the front panel 15 is rotated with respect to the right surface panel 13 via the fifth hinge member 25, and is moved to the outer surface 13b side of the right surface panel 13. Further, the front partial panels 15c and 15d are folded via the front bent portion 15g and folded in half. At this time, one front partial panel 15c is arranged so as to be in contact with the outer surface 13b of the right surface panel 13. Further, the inner surfaces 15a of the two front partial panels 15c and 15d come into contact with each other. Therefore, the inner surfaces 15a of the front partial panels 15c and 15d are not easily soiled and are hygienic.

Similarly, the back panel 16 is rotated with respect to the right side panel 13 via the sixth hinge member 26 and moved to the outer surface 13b side of the right side panel 13. Further, the back portion panels 16c and 16d are folded via the back bent portion 16g and folded in half. At this time, one of the back surface partial panels 16c is arranged so as to be in contact with the outer surface 13b of the right surface panel 13. Further, the inner surfaces 16a of the two back surface partial panels 16c and 16d come into contact with each other. Therefore, the inner surfaces 16a of the back surface partial panels 16c and 16d are not easily soiled and are hygienic.

Subsequently, the top panel 11 and the bottom panel 12 are integrally folded. Specifically, one top surface portion panel 11c of the top surface panel 11 is folded toward the right side panel 13 via the first hinge member 21, and the other top surface panel 11 is folded via the second hinge member 22. The top panel 11d is folded toward the left panel 14. Further, the top surface partial panels 11c and 11d are folded via the top surface bent portion 11g and folded in half. At this time, one top surface partial panel 11c is arranged so as to be in contact with the inner surface 13a of the right surface panel 13, and the other top surface partial panel 11d is arranged so as to be in contact with the inner surface 14a of the left surface panel 14.

During this time, the top panel 11 is pressed from above by the operator and shifts from the state supported by the cover member 40 (FIG. 10 (c)) to the state in which the strongest tension is applied to the cover member 40 (FIG. 10). (B)). Further, when the top panel 11 is pressed from above, the top partial panels 11c and 11d are folded (FIG. 10 (a)). At this time, the cover member 40 is sandwiched between the top surface partial panels 11c and 11d. As described above, when the operator applies force to the top surface partial panels 11c and 11d, the top surface panel 11 is folded after the cover member 40 is in the most stretched state (FIG. 10 (b)). It is possible to easily shift to the state (FIG. 10 (a)).

On the other hand, one bottom surface panel 12c of the bottom panel 12 is folded toward the right side panel 13 via the third hinge member 23, and the other bottom surface panel 12d of the bottom panel 12 is folded to the left side via the fourth hinge member 24. Fold it to the panel 14 side. Further, the bottom surface partial panels 12c and 12d are folded via the bottom surface bent portion 12g and folded in half. At this time, one bottom surface partial panel 12c is arranged so as to be in contact with the inner surface 13a of the right surface panel 13, and the other bottom surface portion panel 12d is arranged so as to be in contact with the inner surface 14a of the left surface panel 14.

In this way, the six panels 11 to 16 of the heat insulating container 10 are in the folded state shown in FIGS. 6 to 8 as a whole. At this time, all the six panels 11 to 16 are arranged parallel to each other. Finally, the six panels 11 to 16 may be fixed in a folded state by a detachable tool (not shown). As described above, when the heat insulating container 10 is not used, the panels 11 to 16 can be folded and stored and transported in the smallest possible volume.

As described above, according to the present embodiment, the plurality of panels 11 to 16 can be assembled in a box shape and in a small folded state. As a result, by putting the panels 11 to 16 in the assembled state, it is possible to form a storage space 20 that can store the load and has high airtightness inside the panels 11 to 16. On the other hand, when the heat insulating container 10 is not used, the heat insulating container 10 can be stored compactly by folding the panels 11 to 16.

In particular, according to the present embodiment, the procedure for shifting the heat insulating container 10 from the assembled state to the folded state or from the folded state to the assembled state is easy. Specifically, in the folded state, the top panel 11 and the bottom panel 12 are horizontally unfolded, and then the front panel 15 and the back panel 16 are rotated inside the right panel 13 and the left panel 14, respectively. This makes it possible to easily shift the heat insulating container 10 from the folded state to the assembled state. Further, in the assembled state, the front panel 15 and the back panel 16 are first folded to the outside of the right side panel 13 and the left side panel 14, respectively, and then the top surface panel 11 and the bottom surface panel 12 are folded. This makes it possible to easily shift the heat insulating container 10 from the assembled state to the folded state.

Further, according to the present embodiment, the cover member 40 holds the top panel 11 in an open state in the assembled state. As a result, the top panel 11 is held in an open state only by unfolding the top panel 11. Therefore, it is not necessary to perform other work to prevent the top panel 11 from bending due to its own weight, and the heat insulating container 10 can be assembled without making a mistake. In this way, the top panel 11 can be prevented from falling inside the heat insulating container 10 only by assembling the heat insulating container 10 by a predetermined procedure. In this case, it is not necessary to fix the top panel 11 to another panel with a fixing member such as a band so that the top panel 11 does not bend due to its own weight. As a result, the work of assembling and folding the heat insulating container 10 can be efficiently performed. Further, since the fixing member such as the band is not damaged or deteriorated, the maintainability of the heat insulating container 10 can be improved.

Further, according to the present embodiment, in the assembled state, the top panel 11 is located above the right panel 13 and the left panel 14. As a result, while the top panel 11 shifts from the assembled state (FIG. 10 (c)) to the folded state (FIG. 10 (a)), the outer surface 11h of the top panel 11 faces the cover member 40. Contact. In this case, since a frictional force acts between the cover member 40 and the top panel 11 (FIG. 10B), the top panel 11 can be made more difficult to bend due to its own weight.

Further, according to the present embodiment, since the cover member 40 is detachably connected to the right side panel 13 and the left side panel 14, the tension of the cover member 40 can be adjusted as necessary.

Further, according to the present embodiment, since the cover member 40 is sandwiched between the folded top panel 11 in the folded state, the cover member 40 may protrude from the heat insulating container 10 when the panels 11 to 16 are folded. The heat insulating container 10 can be stored compactly.

Further, according to the present embodiment, the top panel 11 can be folded in half toward the inside, and is hinged to the right panel 13 and the left panel 14, respectively. As a result, when the panels 11 to 16 are shifted from the assembled state to the folded state, the top panel 11 does not protrude from between the right panel 13 and the left panel 14 in the height direction (Z direction), and the heat insulating container 10 is placed. Can be folded compactly.

Further, according to the present embodiment, the top surface panel 11 is composed of two top surface partial panels 11c and 11d having widths W1 and W2 equal to each other. As a result, when the panels 11 to 16 are folded, the overall height (length in the Z direction) of the heat insulating container 10 can be suppressed, and the heat insulating container 10 can be folded compactly.

Further, according to the present embodiment, the front panel 15 and the back panel 16 are foldably connected to the right side panel 13, respectively. Thereby, when the top panel 11 and the bottom panel 12 are folded in half, the front panel 15 and the back panel 16 can be prevented from interfering with the top panel 11 and the bottom panel 12.

Further, according to the present embodiment, the front panel 15 and the back panel 16 can each be folded in half toward the outside. As a result, the inner surface 15a of the front panel 15 and the inner surface 16a of the back panel 16 are not exposed to the outside when folded, so that it is possible to prevent the inner surfaces 15a and 16a from becoming dirty. Further, when the accommodation space 20 is lower than the outside air, it is possible that dew condensation water adheres to the inner surfaces 15a and 16a. Even in this case, it is possible to prevent the dew condensation water on the inner surfaces 15a and 16a from adhering to the surroundings.

Further, according to the present embodiment, the top bent portion 11 g of the top panel 11 and the bottom bent portion 12 g of the bottom panel 12 are the front bent portion 15 g of the front panel 15 and the back bent portion of the back panel 16, respectively. It is in a position deviated from the portion 16 g. As a result, it is possible to suppress the formation of a flow path communicating between the accommodation space 20 and the outside of the heat insulating container 10, and it is possible to suppress the deterioration of the airtightness of the accommodation space 20.

Further, according to the present embodiment, the front panel 15 and the back panel 16 are provided with the selvage portions 15h and 16h along the outer periphery thereof, respectively. Thereby, the airtightness between the front panel 15 and the back panel 16 and the panels 11 to 14 can be improved. The selvage portion may be provided on only one of the front panel 15 and the back panel 16.

Further, according to the present embodiment, in the assembled state, the fitting portion 15f of the front panel 15 and the fitting portion 16f of the back panel 16 are arranged so as to be surrounded by the panels 11 to 14. Thereby, the heat insulating property of the accommodation space 20 can be improved. Further, in the assembled state, the fitting portion 15f of the front panel 15 and the fitting portion 16f of the back panel 16 are sandwiched between the panels 11 to 14, so that the front panel 15 and the back panel 16 can be stably held.

Further, according to the present embodiment, each of the panels 11 to 16 is a plate-shaped member having rigidity. As a result, since the panels 11 to 16 are not flexibly deformed, the heat insulating container 10 becomes a rectangular parallelepiped in the assembled state, and the accommodation space 20 can be reliably formed.

Further, according to the present embodiment, the panels 11 to 16 are integrally connected to each other. Therefore, it is not necessary to cover each panel 11 to 16 with an outer bag. Since the outer bag does not exist, the folding work and the assembling work of each panel 11 to 16 can be performed more efficiently. Further, the outer bag does not obscure the panels 11 to 16.

Further, according to the present embodiment, since the accommodation space 20 is covered from all directions by the panels 11 to 16, the load in the accommodation space 20 can be protected from all directions.

(First modification)
Next, a first modification of the present embodiment will be described with reference to FIGS. 11 (a) and 11 (b). 11 (a) and 11 (b) are views showing a part of the heat insulating container 10 according to the first modification. FIG. 11A shows the heat insulating container 10 in the folded state, and FIG. 11B shows the heat insulating container 10 in the assembled state. In FIGS. 11A and 11B, the same parts as those shown in FIGS. 1 to 10 are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIGS. 11 (a) and 11 (b), a shape-retaining member 33 for holding at least the shape of a corner of the top panel 11 is provided on the outer surface 11b of the top panel 11. The shape-retaining member 33 is a plate-shaped resin member such as corrugated plastic, plastic pearl (registered trademark by Kawakami Sangyo Co., Ltd.), texel (registered trademark by Gifu Plastic Industry Co., Ltd.), twin cone (registered trademark by Ube Exsymo Co., Ltd.), and the like. It may be composed of.

As shown in FIGS. 11A and 11B, the shape-retaining member 33 is fixed to the outer surface 11b of the top panel 11, and at least the outer corner portion of the top panel 11 (the corner portion on the right side panel 13 side). It is preferable that the panel 14 is located so as to cover the corners of the left panel 14. As a result, it is possible to prevent the outer corners of the top panel 11 from being rounded when used repeatedly. This makes it possible to prevent the tension of the cover member 40 from decreasing after long-term use.

(Second modification)
Next, with reference to FIG. 12, a second modification of the present embodiment will be described. FIG. 12 is a diagram showing a heat insulating container 10 according to a second modification. In FIG. 12, the same parts as those shown in FIGS. 1 to 10 are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 12, the front panel 15 and the back panel 16 of the heat insulating container 10 have a structure that cannot be folded in half, and have one plate-shaped door portion 15e and 16e and one plate-shaped fitting portion, respectively. It includes 15f and 16f. In this case, the outer surface 15b of the front panel 15 and the outer surface 13b of the right side panel 13 are connected in a hinge shape via the fifth hinge member 25, and the outer surface 16b of the back panel 16 and the outer surface 14b of the left side panel 14 are connected to each other. 6 It is connected in a hinge shape via a hinge member 26. As a result, the structure of the front panel 15 and the back panel 16 can be simplified. It should be noted that one of the front panel 15 and the back panel 16 may have a structure that can be folded in two, and the other may have a structure that cannot be folded in two.

It is also possible to appropriately combine a plurality of components disclosed in the above-described embodiments and modifications as necessary. Alternatively, some components may be deleted from all the components shown in the above embodiments and modifications.

10 Insulation container 11 Top panel 11c, 11d Top panel 12 Bottom panel 12c, 12d Bottom panel 13 Right panel 14 Left panel 15 Front panel 15c, 15d Front panel 16 Back panel 16c, 16d Back panel 20 Storage space 21 1st hinge member 22 2nd hinge member 23 3rd hinge member 24 4th hinge member 25 5th hinge member 26 6th hinge member 40 cover member 41 right side connection part 42 left side connection part

Claims (8)

A heat insulating container that can be assembled and folded.
A top panel, a bottom panel, a first side panel, a second side panel, a third side panel, and a fourth side panel are provided.
In the assembled state in which the heat insulating container is assembled, the top panel and the bottom panel face each other, the first side panel and the second side panel face each other, and the third side panel and the fourth side panel face each other. The side panels face each other,
The top panel can be folded in half toward the inside, and is hinged to the first side panel and the second side panel, respectively.
A cover member is provided so as to cover the top panel, and the cover member is provided.
The cover member is connected to the first side panel and the second side panel.
The cover member is a heat insulating container that holds the top panel in an open state in the assembled state. The heat insulating container according to claim 1, wherein the top panel is located above the first side panel and the second side panel. The heat insulating container according to claim 1 or 2, wherein the cover member is detachably connected to the first side surface panel and the second side surface panel. The heat insulating container according to any one of claims 1 to 3, wherein the cover member is sandwiched between the folded top panels in a folded state in which the heat insulating container is folded. The heat insulating container according to any one of claims 1 to 4, wherein the top panel is composed of two top partial panels having equal widths with each other. The heat insulation according to any one of claims 1 to 5, wherein the third side panel and the fourth side panel are foldably connected to the first side panel or the second side panel, respectively. container. The third side panel can be folded in half toward the outside, and is hinged to the first side panel or the second side panel.
One of claims 1 to 6, wherein the fourth side surface panel is foldable in half toward the outside and is hingedly connected to the first side surface panel or the second side surface panel. Insulated container as described in. The heat insulating container according to any one of claims 1 to 7, wherein a shape-retaining member for holding the shape of a corner portion of the top panel is provided on the outer surface of the top panel.

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