JP2019043649A - Thermal insulation container using vacuum heat insulation material - Google Patents

Abstract

To obtain a favorable heat insulation performance by suppressing degradation of airtightness in a heat insulation container using a vacuum heat insulating material.SOLUTION: A heat insulation container 10 of the present disclosure includes a heat insulation container body 100 and a cover sheet 200, and the cover sheet 200 can cover an outer surface of the heat insulation container body 100 and can be separated therefrom. The heat insulation container body 100 has a top heat insulation panel, a bottom heat insulation panel, and a plurality of side heat insulation panels having a right heat insulation panel, a back heat insulation panel, a left heat insulation panel and a front heat insulation panel 150. At least four heat insulation panels have a vacuum heat insulation member comprising the vacuum heat insulation material, and at least one heat insulation panel has an openable/closable door. Since the cover sheet 200 can cover the outer surface of an outer periphery of the door when the door is closed, it is possible to suppress degradation of airtightness of the heat insulating container 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an insulation container in which a vacuum insulation material is used.

  The vacuum heat insulating material has a core material and an exterior material, and while the core material is disposed inside the bag constituted by the exterior material, the vacuum material is maintained in a vacuum state where the pressure is lower than atmospheric pressure. . Since the heat convection inside the bag is suppressed, the vacuum heat insulating material can exhibit good heat insulating performance. Since the vacuum heat insulating material has higher heat insulating performance per unit thickness than a general foam heat insulating material, the thickness of the heat insulating material can be reduced while securing desired heat insulating properties. Therefore, it becomes possible to achieve weight reduction and space saving of the heat insulation container by using the vacuum heat insulating material for the heat insulation container.

  The heat insulation container using a vacuum heat insulating material may provide a door in a side surface or a top surface in order to take in and out goods, a thermal storage material, etc. easily. Moreover, in order to achieve miniaturization when not using the heat insulation container, the heat insulation container may be configured to be able to change the assembled state and the disassembled state. For example, Patent Documents 1 to 3 disclose thermal insulation containers in which a vacuum insulation material is used, and the door can be opened, closed and assembled and disassembled.

JP 2008-68871 A JP, 2015-199527, A JP, 2015-214369, A

  By the way, since it is necessary to hold the inside of the vacuum heat insulating material in a vacuum state in which the pressure is lower than the atmospheric pressure, the processability is low. Also, for example, in the case of a foamed heat insulating material, even when a part of the foamed heat insulating material is broken, the decrease in the heat insulating property is limited to the broken part, but in the vacuum heat insulating material, a part of the vacuum heat insulating material is If it breaks, the heat insulation of the whole vacuum heat insulating material will fall. Thus, the vacuum heat insulating material has the property that the performance deterioration at the time of breakage is large. Therefore, a foam heat insulating material may be used with a vacuum heat insulating material from a viewpoint of processability improvement and breakage prevention.

  However, when a plurality of heat insulating materials are stacked, two contact surfaces, ie, the contact surface between the end surface of the vacuum heat insulating material and the main surface of the foam heat insulating material and the contact surface between the end surface of the foam heat insulating material and the main surface of the foam heat insulating material It occurs. In addition, since the thickness of the vacuum heat insulating material is thinner than the thickness of the foamed heat insulating material, the airtightness of the heat insulating container at the contact surface is likely to be reduced. Therefore, when the heat insulating container is provided with a door, particularly due to the properties unique to the vacuum heat insulating material (thin thickness, low processability and high performance deterioration at the time of breakage), particularly the door A gap may be generated between the outer peripheral portion of the door portion when the door is closed and the surrounding heat insulating panel portion in contact therewith, which tends to reduce the airtightness of the heat insulating container.

  In addition, when a vacuum heat insulating material is used as the heat insulating material of the heat insulating container capable of changing the assembled state and the disassembled state, a gap may be generated at the joint portion between the heat insulating panels of the heat insulating container. Tends to decrease. The part where the airtightness tends to deteriorate is the end part of the door or the heat insulating panel, which overlaps with the position where the vacuum heat insulating material can not be placed to prevent breakage, resulting in lowering the heat insulating property of the heat insulating container. In the case of the heat insulation container, the desired heat insulation performance as the heat insulation container may not be obtained.

  An object of the present disclosure is to obtain a good heat insulating performance by suppressing a decrease in air tightness in a heat insulating container using a vacuum heat insulating material.

  The present disclosure is a thermal insulation container in which a vacuum insulation material is used, and the thermal insulation container can cover the thermal insulation container body and the outer surface of the thermal insulation container body, and is a cover sheet which can be separated from the thermal insulation container body. The heat insulation container body comprises a top heat insulation panel, a bottom heat insulation panel, and a plurality of side heat insulation panels having a right heat insulation panel, a back heat insulation panel, a left heat insulation panel, and a front heat insulation panel; The panel, the bottom heat insulating panel, and at least four heat insulating panels of the plurality of side heat insulating panels have a vacuum heat insulating member including the vacuum heat insulating material, and the top heat insulating panel, the bottom heat insulating panel, and the plurality The heat insulating panel of at least one of the side heat insulating panels has an openable / closable door portion, and the cover sheet has the door portion closed when the door portion is closed. It is possible to cover the outer surface of the outer peripheral portion, a heat insulating container which vacuum insulation material is used.

  Further, the heat insulation container main body can be changed between an assembled state and a disassembled state, and the assembled state is a heat insulation space surrounded by the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels. The heat insulation container is in a formed state, the disassembled state is a state in which the heat insulation space is not formed, and the cover sheet can cover an outer surface of a joint of the heat insulation panels in the assembled state. It may be

  In addition, the cover sheet includes an openable and closable opening and closing portion, and the cover sheet covers the outer surface of the heat insulating container main body by opening the opening and closing portion of the cover sheet. It is good also as a heat insulation container which can open a door part.

  In addition, the cover sheet includes an openable and closable opening and closing portion, and the opening and closing portion of the cover sheet is such that the door portion of the heat insulation container main body is closed and the cover sheet covers the outer surface of the heat insulation container main body Sometimes, it may be a heat insulation container which can be disposed to face the door of the heat insulation container main body.

  Moreover, it is good also as a heat insulation container from which the opening and closing direction of the said opening-and-closing part of the said cover sheet and the opening and closing direction of the door part of the said heat insulation container main body differ.

  In addition, the cover sheet includes an openable and closable opening and closing portion, and the opening and closing portion of the cover sheet is an outer surface of the joint portion of the heat insulation container main body when the cover sheet covers the outer surface of the heat insulation container main body. It is good also as a heat insulation container which can be arranged so that it may not face.

  Further, the cover sheet includes an openable / closable opening / closing unit, the opening / closing unit includes a first end and a second end, and the first end is closed when the opening / closing unit is closed. The heat insulating container is also in contact with the second end in a state of being overlapped with the second end, and in a state in which the open / close unit is open, the first end does not contact the second end. Good.

  Further, the present disclosure is a heat insulation container using a vacuum heat insulating material, wherein the heat insulation container covers the heat insulation container body and the outer surface of the heat insulation container main body, and is a cover which can be separated from the heat insulation container main body. A sheet, the insulation container body comprising a top insulation panel, a bottom insulation panel, and a plurality of side insulation panels having a right insulation panel, a rear insulation panel, a left insulation panel, and a front insulation panel; At least four heat insulation panels among the surface heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels have vacuum heat insulation members including the vacuum heat insulation material, and the heat insulation container main body is in an assembled state and a disassembled state Can be changed, and the assembly state is such that a heat insulation space surrounded by the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels is formed. The heat insulating space is not formed, and the cover sheet can cover the outer surface of the joint between the heat insulating panels in the assembled state. It is a heat insulation container used.

  In addition, when the cover sheet covers the outer surface of the heat insulation container main body, a gap can be formed between the heat insulation container main body and the cover sheet, and the heat insulation container main body and the cover sheet are separated. It is good also as a heat insulation container in which a possible position is the above-mentioned space.

  In addition, the cover sheet may be a heat insulating container which is a heat shield sheet capable of shielding radiant heat.

  In addition, the heat insulation container includes a spacer, and the heat insulation container can form a space between the heat insulation container main body and the cover sheet by sandwiching the spacer between the heat insulation container main body and the cover sheet. It may be

  Further, the spacer may be a heat insulation container integrally formed with the cover sheet, and the spacer may be a heat insulation container having a void therein.

  According to the present disclosure, in the heat insulating container using the vacuum heat insulating material, a good heat insulating performance can be obtained by suppressing the decrease in air tightness.

It is a perspective view explaining the structure of an example of the heat insulation container of 1st Embodiment. It is a figure explaining the cover sheet of an example of the heat insulation container of 1st Embodiment, and a heat insulation container main body. It is sectional drawing of a vacuum heat insulation member. It is a figure explaining an example of the decomposition process of the heat insulation container of 1st Embodiment. It is a figure explaining an example of the decomposition process of the heat insulation container of 1st Embodiment. It is a perspective view explaining the structure of an example of the heat insulation container of 2nd Embodiment. It is a perspective view explaining the structure of an example of a heat insulation container as a modification. It is a perspective view explaining the structure of another example of a heat insulation container as a modification. It is a perspective view explaining the structure of another example of a heat insulation container as a modification. It is a figure explaining the structure of an example of a cover sheet as a modification. It is an expanded sectional view explaining an example of the structure near the joined part of a panel as a modification.

  Hereinafter, an example of the heat insulation container of the present disclosure will be described with reference to the drawings and the like. However, the heat insulation container of this indication is not limited to this example or embodiment mentioned later.

  In addition, each figure shown below is shown typically. Therefore, the size and shape of each part are appropriately exaggerated to facilitate understanding. Moreover, in each figure, the hatching which shows the cross section of a member is abbreviate | omitted suitably. Numerical values and material names such as dimensions of each member described in the present specification are merely examples as an embodiment, and the present invention is not limited thereto, and can be appropriately selected and used. In the present specification, terms specifying shape and geometrical conditions, for example, terms such as parallel, orthogonal, and vertical, include, in addition to their strict meanings, substantially the same states.

1. First Embodiment (a) Configuration of Heat Insulating Container FIG. 1 and FIG. 2 are diagrams showing an example of a heat insulating container according to the present embodiment. FIG. 1A is a perspective view of the heat insulating container 10 covered with a cover sheet 200 so as to cover the outer surface of the heat insulating container main body 100 which can be assembled and disassembled. A part of the cover sheet 200 is in an open state. Moreover, FIG.1 (b) is a perspective view of the heat insulation container 10 which shows the state which the open part of the cover sheet 200 of Fig.1 (a) has closed. 2A shows a state in which the cover sheet 200 is partially opened, and FIG. 2B shows a state in which the door portion is partially opened in the heat insulation container main body 100. FIG.

  First, the heat insulation container main body 100 of FIG. 2 (b) is placed on the pallet 500 laid on the floor so that the main surface of the bottom heat insulation panel 190 is in contact. A top surface heat insulation panel 170 is disposed at the upper end portion of the heat insulation container main body 100 opposite to the pallet 500. Further, as a side heat insulation panel constituting a side surface between the bottom heat insulation panel 190 and the top heat insulation panel 170, a front heat insulation panel 150, a left heat insulation panel 130, a back heat insulation panel 140 and a right heat insulation panel 120 are arranged.

  Here, the direction from the bottom heat insulation panel 190 toward the top heat insulation panel 170, which is perpendicular to the panel surface of the bottom heat insulation panel 190, is taken as the + Z direction or the upward direction, and the opposite direction to the + Z direction is taken as the −Z direction or the downward direction. The + Z direction and / or the -Z direction may be simply referred to as the Z direction. In the horizontal plane perpendicular to the + Z direction, the direction from the back heat insulation panel 140 toward the front heat insulation panel 150 perpendicular to the panel surface of the back heat insulation panel 140 is the + X direction, and the opposite direction to the + X direction is the -X direction Do. The + X direction and / or the -X direction may be simply referred to as the X direction. The direction from the left heat insulation panel 130 to the right heat insulation panel 120 perpendicular to the panel surface of the right heat insulation panel 120 orthogonal to the + X direction is taken as the + Y direction, and the opposite direction to the + Y direction is taken as the −Y direction. The + Y direction and / or the −Y direction may be simply referred to as the Y direction.

  Moreover, let the main surface of each panel be a panel surface, and let other than a main surface be an end surface. The panel surface side of the heat insulation space side of each panel is the inside of the panel, and the panel surface side opposite to the panel surface side of the heat insulation space is the outside of the panel.

  In FIG. 1A, a cover sheet 200 is covered to cover the outer surface of the heat insulation container main body 100, and is a door part which is three openable door parts constituting the front heat insulation panel 150 of the heat insulation container main body 100. The part of the cover sheet 200 facing the members 151, 152, 153 is provided with an openable / closable opening / closing part, and is opened in the + X direction side like the left and right door parts. The cover sheet 200 opens and closes along a straight line parallel to the Y direction of the upper end of the front heat insulation panel 150 corresponding to the junction of the front heat insulation panel 150 and the top heat insulation panel 170 in a state of covering the heat insulation container main body 100. 221 has an end 221a, 221b and 221c in an open portion, and along a straight line parallel to the Z direction passing through the center of the width of the front heat insulating panel 150 in the Y direction, It has ends 222a and 222b. The cover sheet 200 can be partially opened and closed by separating or contacting these ends.

  By bringing the end portions 221a and 221b and the end portions 221a and 221c of the cover sheet 200 into contact with each other, the open / close portion 221 is closed. Further, by bringing the end portions 222a and 222b into contact with each other, the open / close portion 222 is closed. As a result, as shown in FIG. 1B, the heat insulating container 10 can be obtained in a state in which the cover sheet 200 covers the outer surface of the heat insulating container main body 100. In the case where the luggage is stored inside the heat insulation container main body 100, the cover sheet 200 covers the outer surface of the heat insulation container main body 100 in this way, so that the heat insulation property of the cover sheet itself is provided. In addition to the heat insulation effect being obtained, the airtightness of the heat insulation container can be improved by reducing the flow of gas inside and outside the heat insulation container.

  In particular, the outer peripheral portions of the door portions 151, 152 and 153 of the heat insulation container main body 100 and the corner portions of the heat insulation container main body which is a joint portion between the heat insulation panels are locations where the airtightness of the heat insulation container tends to deteriorate. As in the case of the cover sheet 200 of the present embodiment, the cover sheet 200 covers the outer surface of the outer periphery of the door and the outer surface of the joint between the heat insulating panels, effectively reducing the airtightness of the heat insulating container main body 100. Can be prevented.

  In the present disclosure, covering the outer surface of the heat insulation container body refers to the left heat insulation panel, the back heat insulation panel, the right heat insulation panel, the front heat insulation panel, and the top heat insulation panel except the bottom heat insulation panel of the heat insulation container body. Although covering is meant, it is not strictly limited to covering even the lower end portions of the left heat insulation panel, the rear heat insulation panel, the right heat insulation panel and the front heat insulation panel.

  Further, as shown in FIG. 1B, in the cover sheet 200 of the present embodiment, the arrangement of the boundary of the opening / closing part 222 is the boundary of the door parts 151 and 152 which are the left and right door parts of the heat insulation container main body 100 inside. It is close to the arrangement of the lines. That is, the opening and closing portion of the cover sheet is disposed to face the door of the heat insulating container main body. Therefore, as shown in FIG. 1A, the opening / closing portion 222 and the opening / closing portion 221 are separated into the end portions 222a and 222b and 221a, 221b As shown in b), the left and right doors 151, 152 of the heat insulation container main body 100 can be opened and closed in a state where the cover sheet 200 covers the heat insulation container main body 100. As a result, workability can be improved, for example, luggage can be taken in and out with the cover sheet 200 attached.

(B) Heat insulation container main body The heat insulation container main body 100 is placed on the pallet 500 as shown in FIG. 2B, and the bottom heat insulation panel 190 is laid so that the panel surface is in contact with the pallet 500 Front side heat insulation panel 150 on the + X direction side, left side heat insulation panel 130 on the -Y direction side, back heat insulation panel 140 on the -X direction side, and right side heat insulation panel 120 on the + Y direction side The respective panel surfaces are arranged in a positional relationship substantially perpendicular to the panel surface of the bottom panel. Further, a top heat insulation panel 170 is placed on the upper side of these side heat insulation panels. The front heat insulating panel 150 is further divided into three door portions, and the left and right door portions can be opened to the near side, that is, the + X direction side.

  In the heat insulation container main body 100 of the present embodiment, all the heat insulation panels have a vacuum heat insulation member including a vacuum heat insulation material described later, but at least four heat insulation panels have a vacuum heat insulation member including a vacuum heat insulation material. Is preferred. Since the vacuum heat insulating material has higher heat insulating performance per unit thickness than general foam heat insulating materials, by making the heat insulating container body such a structure, the desired heat insulating property is secured, weight reduction of the heat insulating container, A balance with space saving can be achieved.

  Moreover, although the door part is open in FIG.2 (b), when all the door parts are closed, the heat insulation space 300 as shown with a broken line can be formed in the inside of the heat insulation container main body 100. . Since the heat insulation space 300 is insulated by the heat insulation panel to maintain the heat insulation to the external temperature environment, the stored luggage can be suitably maintained at a predetermined temperature.

  Furthermore, a predetermined heat storage material can be attached to the inner panel surface of the heat insulation panel in contact with the heat insulation space 300, and in FIG. 2B, the heat storage is performed on the inner side surface of the left heat insulation panel 130 and the back heat insulation panel 140. The material storage unit 401 is attached. Although not shown, a similar heat storage material storage portion can be provided on the other side heat insulation panel or the inside of the top heat insulation panel 170. The heat storage material storage portion 401 can carry in and out a heat storage material such as a predetermined cold storage material or a heat insulating material, and may be provided with an open / close unit for preventing the heat storage material from falling off or shifting as needed. . Moreover, the thermal storage material storage part 401 can also be made into the aspect which is hung on a heat insulation panel and is attached or detached every storage part which stored the thermal storage material besides the aspect fixed beforehand to a heat insulation panel.

  As shown in FIG. 2 (a), the cover sheet 200 has a shape capable of covering the outer surface of the heat insulation container 100 shown in FIG. 2 (b) in a box having substantially the same shape. It is possible to separate from 100.

  The heat insulation container main body 100 and the heat insulation container 10 having the cover sheet 200 covered thereon are placed on the pallet 500 having the claw holes 501, so when moving to a warehouse or a truck, the heat insulation container main body 100 storing luggage. The thermal insulation container 10 can be easily moved by pallets, forklifts or hand lifts. Even if the heat insulation container main body 100 or the heat insulation container 10 is placed directly on the floor without using a pallet, it can be easily moved simply by placing it on a carriage.

(C) Vacuum Heat Insulating Member FIGS. 3A and 3B are cross-sectional views of the vacuum heat insulating member 330 constituting each heat insulating panel of the heat insulating container main body 100 in the present embodiment. The heat insulation panel may be constituted only by the vacuum heat insulation member 330, and in addition to this, a reinforcing protective material or the like may be adhered to form a heat insulation panel.

  FIG. 3A is a cross-sectional view showing an example of the structure of the vacuum heat insulating member 330. As shown in FIG. The vacuum heat insulating member 330 is composed of a vacuum heat insulating material 331, a foam heat insulating material 332 surrounding the vacuum heat insulating material 331, and a protective base material 338 surrounding the foam heat insulating material 332. A protective substrate 338 is enclosed. For example, a member made of an organic polymer can be used as the protective substrate.

  Because the foamed heat insulating material 332 is disposed on both sides of the end face of the vacuum heat insulating material 331, the heat insulating performance is compared to the case where the foamed heat insulating material 332 is not disposed on both sides of the end face of the vacuum heat insulating material 331 Improve. Moreover, since the usage-amount of a foaming heat insulating material can be reduced, thickness of vacuum heat insulation member itself can be made thin. Although not shown, the structure of the vacuum heat insulating member 330 includes a vacuum heat insulating material 331, a foam heat insulating material 332 surrounding the vacuum heat insulating material 331, a heat shielding sheet 333 surrounding the foam heat insulating material 332, and a protective substrate surrounding the heat shielding sheet. 338 may be comprised.

  3B is a cross-sectional view showing another example of the structure of the vacuum heat insulating member 330. As shown in FIG. The vacuum heat insulating member 330 is composed of a vacuum heat insulating material 331, a foamed heat insulating material 332 surrounding both of one main surface and an end surface of the vacuum heat insulating material 331, and a heat insulating sheet 333 wrapping the entire outer periphery thereof. Also in this case, since the foamed heat insulating material 332 is disposed on both sides of the end face of the vacuum heat insulating material 331, the foamed heat insulating material 332 is not disposed on both sides of the end face of the vacuum heat insulating material 331, and this is a space. Thermal insulation performance is improved.

  The vacuum heat insulating material 331 is comprised from the core material 331a and the exterior material 331b. The vacuum heat insulating material 331 can not maintain a vacuum when the exterior material 331 b is broken, and can not obtain a desired heat insulating property. Is arranged. This can reduce the risk of damage to the vacuum heat insulating material 331 when an article placed in the heat insulating space collides with it. In the configuration of FIG. 3B, it is desirable that the vacuum heat insulating material 331 be protected by a protective material disposed on the opposite side to the heat insulating space.

  When forming the vacuum heat insulating member 330 shown in FIGS. 3A and 3B, first, the vacuum heat insulating material 331 is set in a mold, and then the foam heat insulating material 332 is integrally formed by injection molding. In general, for example, those separately manufactured from each other may be joined later by an adhesive or the like. In this case, since the vacuum heat insulating material 331 and the foam heat insulating material 332 can be separately formed and placed, there is flexibility of the manufacturing method, and it is easy to replace only the vacuum heat insulating material, and therefore, maintainability can be enhanced. .

  The vacuum insulation material 331 and the foam insulation material 332 may be fixed using an adhesive. The vacuum insulation 331 can be configured to be removable from the foam insulation 332 when mated without using an adhesive. The vacuum heat insulating material 331 can be configured to be removable from the foam heat insulating material 332 also by using a weak adhesive.

  As shown in FIGS. 3 (a) and 3 (b), the vacuum heat insulating material 331 is composed of a core material 331a and an exterior material 331b having gas barrier properties, and is obtained by reducing the pressure in the exterior material 331b. It is a heat insulating material. The core material 331a may be a material used for the core material of a conventionally known vacuum heat insulating material, and for example, powder such as silica, foam such as urethane polymer, fiber such as glass wool, etc. The porous body of may be used.

  The exterior material 331 b is a member that covers the outer periphery of the core material 331 a, and may use a flexible sheet in which the heat welding layer and the gas barrier layer are sequentially laminated from the core material. The gas barrier layer may be a metal foil, a vapor deposition sheet having a vapor deposition layer formed on one side of a resin sheet, or the like. The metal foil can use, for example, aluminum. The vapor deposition layer can use aluminum, an aluminum oxide, and a silicon oxide, for example.

Gas barrier properties of the outer package 331b is oxygen permeability 0.5cc · m ^-2 · day ^-1 or less, or may be inter alia 0.1cc · m ^-2 · day ^-1 or less. Further, the water vapor permeability 0.2cc · m ^-2 · day ^-1 or less, or may be inter alia 0.1cc · m ^-2 · day ^-1 or less.

The internal vacuum degree of the vacuum heat insulating material 331 may be, for example, 5 Pa or less. The initial thermal conductivity of the vacuum heat insulating material 331 is, for example, 15 mW · m ⁻¹ · K ⁻¹ or less under 25 ° C. environment, in particular 10 mW · m ⁻¹ · K ⁻¹ or less, and particularly 5 mW · m ⁻¹ · K ⁻¹ It may be the following.

  The foamed heat insulating material 332 can be disposed adjacent to and joined to at least the main surface on the heat insulating space side of the vacuum heat insulating material 331. As the foam insulation material 332, a known foam insulation material can be used. For example, polyurethane foam may be used.

  The heat shield sheet 333 can be disposed so as to cover the entire adjacent vacuum heat insulating material 331 and foam heat insulating material 332. Examples of the heat shield sheet 333 include a multilayer sheet including a metal foil, a vapor deposition sheet in which a vapor deposition layer is formed on one side of a resin sheet, and the like.

  As the protective substrate 338, for example, an organic polymer material such as plywood, a foam material, a resin plate, an embossed resin sheet, a paper board, a ceramic member or the like can be used. As a lightweight and relatively rigid material, plastic cardboard or cured wood can be used.

  The vacuum heat insulating member 330 can be configured such that the vacuum heat insulating material 331 can be visually recognized from the outside. For example, providing the area | region where the foaming heat insulating material 332, the heat shielding sheet 333, and the protection base material 338 do not exist, making part or all of them transparent is mentioned. When the vacuum heat insulating material 331 is broken and an abnormal deformation occurs on the surface, the broken condition of the vacuum heat insulating material can be confirmed without breaking the inner panel.

(D) Front thermal insulation panel The front thermal insulation panel 150 is comprised by three openable and closable door parts, as shown in FIG.2 (b). Although each door part is separated, they are basically the same in that they have a cross-sectional structure as shown in FIG. 3 (a). Among the door parts arranged side by side on the upper side, the left door part 151 passes through the -Y direction end of the front heat insulation panel 150 and opens in the + X direction around the rotation axis parallel to the Z direction. Can. The door part 152 on the right side can be opened in the + X direction side around the rotation axis parallel to the Z direction through the + Y direction side end of the front heat insulation panel 150 symmetrically to the door part 151.

  Furthermore, although the door portion 153 disposed on the lower side is not usually used, it can be opened in the + X direction around the rotation axis parallel to the Y direction through the -Z direction side end of the front heat insulation panel 150 . The door portion 153 is provided separately from the door portion on the upper stage side, for example, in order to prevent cold air accumulated on the lower side of the heat insulation space from escaping to the outside due to loading and unloading of luggage when the luggage is cooled. It is possible to operate without opening and closing except in special cases such as removing condensation water accumulated below and loading and unloading large packages.

  The rotary shaft parts of these three door parts are detachably engaged with the adjacent heat insulating panels and the surface fasteners (not shown). However, the present invention is not limited thereto, and other engagement methods such as fasteners, buttons, hinges and the like may be used. .

(E) Left, right, and back thermal insulation panels The left thermal insulation panel 130, the right thermal insulation panel 120, and the rear thermal insulation panel 140 are thermal insulation panels without a door, and like the front thermal insulation panel 150, the cross section of FIG. And a vacuum insulation member including a vacuum insulation material. However, the left side heat insulation panel 130, the right side heat insulation panel 120 or the back heat insulation panel 140 may also be provided with a door. FIG. 4A is a plan view of the heat insulating container 10 when the top heat insulating panel 170 of the heat insulating container 10 is removed and only the outermost cover sheet 200 is cut in a plane parallel to the axis in the Z direction. FIG. 4B is a front view of the heat insulation container main body 100 with the front heat insulation panel 150 removed.

  As shown in FIG. 4A, the four heat insulation panels constituting the side heat insulation panel are in contact with the panel surface of the back heat insulation panel 140 and the end surfaces of the left heat insulation panel 130 and the right heat insulation panel 120. Similarly, the panel surfaces of the door 151 and the door 152 constituting the front heat insulation panel 150 are in contact with the end surfaces of the left heat insulation panel 130 and the right heat insulation panel 120.

  FIG. 3C shows an enlarged cross section taken along a plane parallel to the axis in the Z direction at a portion A showing the vicinity of the contact portion between the left heat insulation panel 130 and the rear cross section panel 140 in FIG. 4A. Thus, maintaining the airtightness of heat insulation space is calculated | required by the end surface 330a of the vacuum heat insulation member 330 of the left surface heat insulation panel 130 and the panel surface 330b of the vacuum heat insulation member 330 of the back section panel 140 contacting.

  By using a vacuum heat insulating material, although the thickness of the vacuum heat insulating member 330 can be reduced, the contact area of the contact portion between the heat insulating panels is reduced. Furthermore, as described above, the vacuum heat insulating material has low processability and the performance deterioration at the time of breakage is large, so it is necessary to arrange a foamed heat insulating material etc. around it. It is difficult to ensure smoothness due to the influence of bonding. Therefore, if the amount of using the vacuum heat insulating material 331 in the vacuum heat insulating portion 330 is increased, the heat insulating container can be miniaturized and storage efficiency is improved, but the adhesion of the contact surfaces of the heat insulating panels is lowered. Maintenance becomes difficult.

  In FIG. 3 (c), the cover sheet 200 covers the outer surface of the contact surface which is the joint of these heat insulating panels, thereby inhibiting the flow of gas inside and outside the heat insulating container and suppressing the decrease in air tightness. An effect is obtained. In addition, together with this, the heat insulation panels are detachably engaged with the surface fastener (not shown) on the outer surface side. As described above, this may be another engagement method such as a fastener or a button.

(F) Bottom Heat Insulating Panel The bottom heat insulating panel 190 is also composed of a vacuum heat insulating member including a vacuum heat insulating material having a cross section shown in FIG. However, since the bottom surface heat insulation panel 190 is a portion to which the load load of the stored luggage is directly applied, in consideration of damage to the vacuum heat insulation material, the vacuum heat insulation material may not be used. Alternatively, a reinforcement sheet such as a plastic cardboard may be laid over the bottom heat insulation panel 190 for reinforcement.

  As shown in FIG. 4B, in the bottom surface heat insulation panel 190, the end surfaces of the both ends thereof are in contact with the panel surfaces of the left surface heat insulation panel 130 and the right surface cross section panel 120. In addition, the front thermal insulation panel 150 and the rear thermal insulation panel 140 have the same abutting relationship. The bottom heat insulation panel 190 is also detachably engaged with a surface fastener (not shown) on the outer surface side, as with the joints between the other heat insulation panels.

(G) Top surface heat insulation panel The top surface heat insulation panel 170 is also comprised from the vacuum heat insulation member containing the vacuum heat insulating material which has a cross section of Fig.3 (a) similarly to each side heat insulation panel and the bottom heat insulation panel 190. As shown in FIG. 4B, the top surface heat insulation panel 170 is in contact with the panel surface and the end surfaces of the left surface heat insulation panel 130 and the right surface cross section panel 120. In addition, the front thermal insulation panel 150 and the rear thermal insulation panel 140 have the same abutting relationship. Although the top heat insulation panel 170 can be removed simply by lifting it up, while it is used as a heat insulation container, other heat insulation panels are included, including the meaning of preventing a shift at the time of movement, etc. Similar to the joint portion, they are detachably engaged on the outer surface side with a surface fastener not shown.

(H) Cover sheet As described above, the cover sheet 200 needs to suppress the deterioration of the air tightness in the vicinity of the outer periphery of the heat insulating container main body 100, particularly in the vicinity of the door, and in the vicinity of the joint of the heat insulating panels. It is preferable that the vicinity of these can be reliably covered, and that the outer surface of the heat insulation container main body 100 can be covered with a shape similar to the external shape of the box of the heat insulation container main body 100. However, in the case of an insulation container main body which is not disassembled and assembled and the airtightness of the joint of each insulation panel is sufficiently addressed, it is not necessary to securely cover the vicinity of the joint of the insulation panel.

  Further, in the present embodiment, as shown in FIGS. 1A, 1B, and 2A, the cover sheet 200 is made to face the position of the door of the heat insulation container main body 100, The sheet 200 is provided with opening and closing portions 221 and 222 so that the sheet 200 can be opened and closed as needed. By doing this, the workability of opening and closing the door of the heat insulation container main body 100 in the state where the cover sheet 200 is covered is improved, and the coating of the outer surface of the heat insulation container other than the door is not hindered. It is possible to prevent the deterioration of the airtightness of the joints of the heat insulation panel and the like.

  The respective ends 221a, 221b and 221c and 222a and 222b when the opening and closing parts 221 and 222 are opened are fastener structures that can be attached and detached, for example, the ends 221a and 222a are male structures of the fastener The ends 221b, 221c and 222b may be female structures of the fastener, but the male and female structures may be reversed. The structure of these ends is not limited to the fastener structure, but various methods such as surface fasteners, buttons, screw fastening, hooks, magnets, adhesive tapes, etc. can be taken, but when it is easy to attach and detach and closed, It is preferable to have a certain degree of bonding strength. Furthermore, it is preferable that it is a structure where it is hard to generate | occur | produce circulation of the gas to the cover sheet inside and outside from the clearance gap between opening and closing parts.

  It is desirable that the cover sheet 200 has a certain degree of flexibility, and can be appropriately folded and the like when not in use to be able to be made smaller. The member having flexibility is not particularly limited. And non-woven fabrics. As the resin film and the resin sheet, those generally used as a cover material can be used. For example, a film or sheet formed of a resin such as polyester resin such as polyethylene terephthalate or polybutylene terephthalate, acrylic resin, polyolefin resin, polyvinyl chloride resin, polystyrene, ABS resin, polycarbonate resin, or polyamide resin may be mentioned. Moreover, as a nonwoven fabric, what is generally used as an exterior member can be used, For example, the nonwoven fabric which consists of fibers, such as a polyester resin, an acrylic resin, nylon, vinylon, glass, is mentioned. The cover sheet 200 may be a single layer made of any one of the above-mentioned materials, or may be a multilayer structure in which a plurality of layers made of the above-mentioned material are laminated.

  Further, the cover sheet 200 may have a metal vapor deposition film in which a metal such as aluminum is vapor deposited on at least one surface. Furthermore, when the cover sheet 200 is a multilayer structure, metal foil such as aluminum may be included as a layer constituting the multilayer structure, and a metal deposited film is formed on the surface of the layer constituting the multilayer structure. May be included. It is possible to shield radiant heat by reflecting direct sunlight or the like by a metal vapor deposition film or metal foil which is provided on the surface or inside of the cover sheet 200.

(I) Pallet When the heat insulation container is directly moved by a forklift or a hand lift, it is preferable to place the heat insulation container on a pallet, but a general pallet can be used as the pallet. In the heat insulation container 10 and the heat insulation container main body 100 of the present embodiment, a lightweight and rigid plastic T11 flat pallet is used, but it is not particularly limited. For example, it is made of metal such as plastic, aluminum, or aluminum alloy There are pallets of various sizes such as wooden, cardboard and so on. Also, instead of using a pallet, it may be stored flat on a floor surface, and it may be transferred to a truck or the like and moved as needed.

(J) Assembly and disassembly of heat insulation container main body The heat insulation container main body 100 of this embodiment can be disassembled and reassembled in order to reduce the occupied volume when not in use. The disassembling method will be described based on FIG. 4 and FIG. FIG. 5A is a cross-sectional view of the heat insulation container main body 100 cut along a plane perpendicular to the Y-direction axis. FIG.5 (b) is the figure which looked at the state which each decomposed | disassembled heat insulation panel was folded in from the side.

  First, as shown by arrow B in FIG. 4 (b), the top heat insulation panel 170 is lifted upward and removed from the heat insulation container main body 100. Next, as shown by arrow C in FIG. 5A, the bottom heat insulation panel 190 is raised clockwise with the joint between the bottom heat insulation panel 190 and the back heat insulation panel 140 as the rotation axis, and overlapped with the back heat insulation panel 140. Moving. Further, as shown by arrow D in FIG. 4A, the left heat insulation panel 130 is rotated counterclockwise with the joint between the left heat insulation panel 130 and the back heat insulation panel 140 as the rotation axis to overlap the bottom heat insulation panel 190. Move to Similarly, as shown by the arrow E, the right thermal insulation panel 120 is rotated clockwise with the joint between the right thermal insulation panel 120 and the rear thermal insulation panel 140 as the rotation axis and moved so as to overlap the left thermal insulation panel 130.

  Finally, as shown in FIG. 5 (b), the top heat insulation panel 170 is inserted between the front heat insulation panel 150 and the right heat insulation panel 120, and the periphery is bound with a binding device 50 such as a rubber band, etc. Do. The assembly can be easily performed by reversing the above disassembly work. As described above, by being compact when not in use, it is possible to increase the transportation efficiency when only the heat insulation container main body is collected by a truck.

  However, the present disclosure is not limited to the container which can be disassembled and assembled in this manner, and the present disclosure can also be applied to a thermally insulated container which has a box-like and non-degradable structure. The present invention can also be applied to a load-resistant box-shaped heat insulation container in which the outside of the vacuum heat insulation member is covered with a protective material such as hard plastic cardboard and the periphery of the protective material is surrounded by a metal frame.

2. Second Embodiment (a) Configuration of Heat Insulating Container Next, a second embodiment will be described. FIG. 6 is a view showing the heat insulating container 11 of the second embodiment, and FIG. 6 (a) is a view showing a state in which the cover sheet 201 is covered, and FIG. FIG. 6 is a view showing a state in which the door of the heat insulation container main body 101 is opened.

  The cover sheet 201 of the present embodiment can be separated into upper and lower two divided bodies 201A and 201B. As shown in FIG. 6A, the cover sheet 201 covers the outer surface of the heat insulating container main body 101 as one cover sheet 201 when the divided bodies 201A and 201B are in contact with each other.

  The door part of the heat insulation container main body 101 is divided into the door part 154 of the upper half of the front heat insulation panel 150 and the plate part 156 of the lower half, as shown in FIG. 6 (b). The door portion 154 can open in the + X direction around the rotation axis parallel to the Y direction of the joint with the plate portion 156. Here, since the door portion 154 can not be opened and closed in a state where the cover sheet 201 is covered, when it is necessary to open and close the door portion such as loading and unloading of luggage, the opening and closing portion 223 of the cover sheet 201 is opened. The door portion 154 can be easily opened and closed by opening the upper half of the cover sheet and removing the divided body 201A of the upper half of the cover sheet.

(B) Cover sheet The cover sheet 201 can be divided into the upper half divided body 201A and the lower half divided body 201B by opening the opening / closing portion 223, and for example, only the divided body 201A can be removed from the heat insulation container main body 101 . After that, when the door 154 of the heat insulation container main body 101 is opened and closed necessary loading and unloading is completed, the divided body 201A is covered again, and the lower half divided body 201B is joined by closing the opening / closing portion 223. The cover sheet 201 is returned to. The opening / closing portion 223 is configured by the contact of the end 223a on the divided body 201A side and the end 223b on the divided body 201B side, but the ends 223a and 223b can be mutually detachable fasteners as in the first embodiment. For example, the end 223a is a male structure of the fastener and the end 223b is a female structure. Similar to the first embodiment, these structures can be replaced with other various means.

  In this embodiment, unlike the first embodiment, the opening / closing direction of the door of the heat insulation container main body does not coincide with the opening / closing direction of the opening / closing portion of the cover sheet. There is. However, the boundary of the opening and closing portion of the cover sheet does not overlap with the outer surface of the joint of the heat insulating panels of the heat insulating container main body, in other words, does not face the outer surface of the joint of the heat insulating panel. Therefore, since the opening and closing portion of the cover sheet does not overlap the outer surface of the outer peripheral portion of the door portion and the outer surface of the joint portion between the heat insulating panels, a sufficient effect can be expected in suppressing the air tightness of the heat insulating container main body.

3. Modifications Various modifications and changes are possible without being limited to the embodiments described above, which are also within the scope of the present disclosure. Below, some modifications are listed.

(A) Modification of the opening / closing structure (i) Modification (1)
In the first embodiment, the opening and closing portion of the cover sheet is disposed to face the outer periphery of the door of the front heat insulating panel 150 of the heat insulating container main body 100, but the arrangement of the opening and closing portion of the cover sheet is not limited thereto. For example, in the heat insulation container 12 shown in FIGS. 7A and 7B, the structure of the heat insulation container main body 100 is the same as that of the first embodiment, but the position of the opening / closing part of the cover sheet 202 is changed.

  The opening / closing portion 221 provided along the joint of the front heat insulation panel 150 and the top heat insulation panel 170 is shifted to the −X side of the top heat insulation panel 170 than the position of the first embodiment, The opening / closing portion 222 along the Z direction, which passes through the center of the width of the heat insulation panel 150 in the Y direction, is offset from the position of the first embodiment in the −Y direction.

  Thus, by shifting the positions of the opening and closing portions, the positions of the outer periphery of the door portions 151 and 152, the outer surface of the joint portion of the front heat insulation panel 150 and the top surface heat insulation panel 170, and the boundary between the opening and closing portions of the cover sheet Air tightness can be further improved because they are disposed so as not to face each other and do not overlap.

(Ii) Modification (2)
8A, the front heat insulation panel 150 of the heat insulation container main body 102 in the inside is provided with a door portion that can be opened over the entire width direction, and opening and closing is possible over the entire surface of the front heat insulation panel 150 on its outer surface. The heat insulation container 13 which covered the cover sheet 203 which has a part is shown. FIG. 8B shows a state in which the opening and closing portion of the cover sheet 203 is closed. The door part 155 of the heat insulation container main body 102 inside can be opened in the + X direction side around the rotation axis along the Z direction passing the end on the + Y direction side of the front heat insulation panel 150, The state is indicated by a broken line.

  As shown to Fig.8 (a), the opening and closing direction of the cover sheet 203 is reverse to the opening and closing direction of the door part 155 of the heat insulation container main body, and is different. As a result, the boundary between the outer surface of the outer periphery of the door portion and the opening and closing portion of the cover sheet does not overlap, and the air tightness can be further improved. In addition, the operation of opening the cover sheet is easy, and the operability of opening and closing the door portion is not hindered. The structures of the opening / closing portion 224 and the end portions 224a and 225b constituting the opening / closing portion 224 are the same as in the first and second embodiments.

(Iii) Modification (3)
FIG. 9A shows a heat insulating container 14 in which a cover sheet 204 having a different shape from the heat insulating container main body similar to the heat insulating container main body 101 described in the second embodiment is covered. The cover sheet 204 is provided with an opening and closing portion at a position different from the opening and closing direction of the door portion 154 of the heat insulating container main body 101. That is, the cover sheet 204 has an opening / closing portion 225 disposed at a position along the rotation axis of the door portion 154 and opening / closing portions 226 and 227 opposite to both side end portions of the door portion. The structures of the end portions 225a and 225b and the end portions 226a, 226b, 227a and 227b constituting the opening and closing portion are the same as those in the first and second embodiments.

  As shown in FIG. 9B, by opening and closing the opening and closing parts 225, 226 and 227 of the cover sheet 204 first, and opening and closing the door 154 in the opposite direction, the workability of opening and closing the door Do not inhibit. Further, by positioning a part of the cover sheet opening / closing part near the rotation axis of the door part, it is possible to form a region where the outer surface of the outer periphery of the door part does not overlap the boundary between the opening / closing part of the cover sheet. The airtightness can be improved.

(Iv) Modification (4)
Further, in the second embodiment, the opening and closing portion which is the boundary between the upper half and the lower half of the cover sheet 200 is the front thermal insulation panel 150, the left thermal insulation panel 130, the rear thermal insulation panel 140 and the right thermal insulation panel 120, respectively. It is provided in the line which goes around the perimeter of the heat insulation container main body along the approximately half point of the height of Z direction. The present disclosure is not limited thereto. For example, the opening and closing portion serving as the boundary between the upper half and the lower half of the cover sheet 200 is a direction orthogonal thereto, that is, the left heat insulation panel 130, the top heat insulation panel 170 and the right surface The heat insulating panel 120 may be provided on a line that goes around the outer periphery of the heat insulating container main body along the substantially half point of the width in each X direction.

  Also in this case, as in the second embodiment, the boundary of the opening and closing portion of the cover sheet does not overlap the outer surface of the joint of the heat insulating panels of the heat insulating container main body, in other words, it faces the outer surface of the joint of the heat insulating panel Not. Therefore, since the opening and closing portion of the cover sheet does not overlap the outer surface of the outer peripheral portion of the door portion and the outer surface of the joint portion between the heat insulating panels, a sufficient effect can be expected in suppressing the air tightness of the heat insulating container main body. Further, in this case, since the divided body of the cover sheet can be removed not to the upper side but to the front side, good workability can be obtained when there is not a sufficient work space above the heat insulation container.

(B) Modification of the structure of the cover sheet (i) Modification (5)
Next, a modification of the structural surface of the cover sheet will be described. FIG. 10 is a view showing a modification of the end of the opening and closing portion of the cover sheet. Although the cover sheet 205 of FIG. 10 is provided with the opening and closing parts 231 and 232 in the arrangement facing the position of the door part of the heat insulation container main body, the respective end parts 231a and 231b and 231c and 232a and 232b overlap each other It is the end that contacts and closes in the closed state. That is, when the opening and closing portions 231 and 232 are closed, the end portions 231a and 231b and the end portions 231a and 231c overlap and close each other, and are detachably engaged, and the end portions 232a and 232b overlap and close each other In addition, it engages releasably. Further, when the ends of the opening / closing parts 231 and 232 are pulled or the like to release the engagement, the end 231a and the ends 231b and 231c are separated without contact, and the end 232a and the end 232b are separated without contact. This causes the cover sheet 200 to open.

  The engagement means may be, for example, a surface fastener but is not limited thereto. Thus, the end portions forming the opening and closing portion are formed so as to overlap with each other, whereby the effect of preventing the flow of gas inside and outside the cover sheet is enhanced, and the airtightness of the heat insulation container main body is improved. Can. Further, since the airtightness can be improved by overlapping in this manner, the end portions do not necessarily have to be detachably engaged with each other, and may simply be in contact with each other.

(Ii) Modification (6)
11 shows an enlarged cross-sectional view of the vicinity of the joint between the left heat insulation panel 130 and the back heat insulation panel 140, similar to FIG. 3C, whereby another deformation of the structural surface of the cover sheet is obtained. An example will be described. In FIG. 11 (a), a spacer material 252 having a corrugated shape with continuous irregularities and a sheet material 251 on the outside thereof are integrally attached to the area of the outer surface of the left heat insulation panel 130 and the back heat insulation panel 140. A mated cover sheet 206 is provided. Further, in FIG. 11B, a cover sheet 207 including an air cap material 253 having a large number of voids therein is provided instead of the spacer material 252. The sheet material 251 is of the same material as that of the cover sheet described above. In either case, a gap is provided at a position where the cover sheet and the heat insulation container main body can be separated.

  Thus, in addition to the heat insulating performance of the cover sheet itself and the heat shielding performance of radiant heat, the air gap is formed by forming a space between the heat insulating panel and the sheet material constituting the cover sheet with a spacer material or an air cap material. The heat insulation effect by the gas inside is added, and the heat insulation property can be further improved. In particular, when using an air cap material having a large number of air gaps isolated inside, convection of gas in the air gaps is less likely to occur, and the heat insulating effect is high. In this modification, the cover sheet 206 or 207 is described as a structure having a spacer or an air cap formed integrally with the sheet, but the sheet and the spacer or the air cap are members separated from each other. It may be arranged individually as

  When the cover sheet is integrally formed with the spacer material or the air cap material, the cover sheet can be arranged only by covering the integrated single cover sheet on the outer surface of the heat insulation container main body, and the workability is good. Also, when the cover sheet and the spacer material or the air cap material are separately disposed, and the spacer material or the air cap material is sandwiched between the heat insulation container main body and the cover sheet, the performance of the heat insulation container and the necessary temperature of the luggage, Since the optimum spacer material and air cap material can be selected according to the external environment etc., it is easy to maintain the performance of the heat insulation container even if the transportation and storage conditions change. Further, the spacer material is not limited to such a corrugated shape, and may have any cross-sectional shape as long as an air gap is formed therebetween. A plurality of members may be appropriately disposed with a space between the heat insulation panel and the sheet material, and a structure in which a plurality of voids substantially occur may be adopted.

10, 11, 12, 13, 14 Insulating container 50 Bundling tool 100, 101, 102 Insulating container main body 120 Right surface insulating panel 130 Left surface insulating panel 140 Back surface insulating panel 150 Front insulating panel 151, 152, 153, 154, 155 Door 156 Plate portion 170 top surface heat insulation panel 190 bottom surface heat insulation panel 200, 201, 202, 203, 204, 205, 206, 207 cover sheet 201A, 201B divided body 221, 222, 223, 224, 225, 226, 227 opening and closing portion 221a, 221b, 221c 221 end 222a, 222b 222 end 223a, 223b 223 end 224a, 224b 224 end 225a, 225b 225 end 226a, 226b 226 end 227a, 227b 227 end 231 , 232 overlapped The opening 251a, 231b 231c 231 end portion 232a, 232b 232 end portion 251 sheet material 252 spacer material 253 air cap material 330 vacuum heat insulating member 330a end surface 330b of vacuum heat insulating member 330 panel surface 331 of vacuum heat insulating member 330 vacuum heat insulating material 331 a core material 331 b exterior material 332 foam insulation material 333 heat shielding sheet 338 protective base material 401 heat storage material storage part 500 pallet 501 nail hole

Claims (13)

An insulation container using a vacuum insulation material,
The heat insulation container includes a heat insulation container body, and a cover sheet capable of covering an outer surface of the heat insulation container body and separable from the heat insulation container body.
The heat insulation container body has a top heat insulation panel, a bottom heat insulation panel, and a plurality of side heat insulation panels having a right heat insulation panel, a back heat insulation panel, a left heat insulation panel, and a front heat insulation panel.
At least four heat insulation panels of the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels have a vacuum heat insulation member including the vacuum heat insulation material,
At least one heat insulation panel among the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels has a door that can be opened and closed.
The said cover sheet can cover the outer surface of the outer peripheral part of the said door part, when the said door part is closed, The heat insulation container in which the vacuum heat insulating material was used. The heat insulation container body can be changed between an assembled state and a disassembled state,
In the assembled state, a heat insulation space surrounded by the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels is formed.
The decomposition state is a state in which the heat insulation space is not formed,
The heat insulation container according to claim 1, wherein the cover sheet can cover an outer surface of a joint of the heat insulation panels in the assembled state. The cover sheet includes an openable / closable opening / closing part.
The door part of the heat insulation container main body can be opened in a state where the cover sheet covers the outer surface of the heat insulation container main body by opening the opening and closing part of the cover sheet. Insulated container as described in. The cover sheet includes an openable / closable opening / closing part.
The opening and closing portion of the cover sheet is disposed to face the door portion of the heat insulation container main body when the door portion of the heat insulation container main body is closed and the cover sheet covers the outer surface of the heat insulation container main body An insulated container according to any one of the preceding claims, which can.   The heat insulation container according to claim 3 or 4, wherein the opening and closing direction of the opening and closing part of the cover sheet is different from the opening and closing direction of the door of the heat insulation container main body. The cover sheet includes an openable / closable opening / closing part.
The opening and closing portion of the cover sheet can be arranged not to face the outer surface of the joint portion of the heat insulating container body when the cover sheet covers the outer surface of the heat insulating container body. The heat insulation container as described in any one of Claim 5. The cover sheet includes an openable / closable opening / closing part.
The opening and closing part comprises a first end and a second end,
In the state where the opening and closing part is closed, the first end contacts with the second end in a state where it overlaps with the second end, and in the state where the opening and closing part is open, the first end The thermally insulated container according to any one of claims 1 to 6, wherein an end does not contact the second end. An insulation container using a vacuum insulation material,
The heat insulation container includes a heat insulation container body, and a cover sheet capable of covering an outer surface of the heat insulation container body and separable from the heat insulation container body.
The heat insulation container body has a top heat insulation panel, a bottom heat insulation panel, and a plurality of side heat insulation panels having a right heat insulation panel, a back heat insulation panel, a left heat insulation panel, and a front heat insulation panel.
At least four heat insulation panels of the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels have a vacuum heat insulation member including the vacuum heat insulation material,
The heat insulation container body can be changed between an assembled state and a disassembled state,
In the assembled state, a heat insulation space surrounded by the top heat insulation panel, the bottom heat insulation panel, and the plurality of side heat insulation panels is formed.
The decomposition state is a state in which the heat insulation space is not formed,
The heat insulation container in which the said cover sheet can cover the outer surface of the junction part of the said heat insulation panels in the said assembly state, and the vacuum heat insulation was used. When the cover sheet covers the outer surface of the heat insulation container body, an air gap can be formed between the heat insulation container body and the cover sheet,
The position where the heat insulation container main body and the cover sheet can be separated is the air gap,
The heat insulation container as described in any one of Claim 1- Claim 8. The cover sheet is a heat shielding sheet capable of shielding radiant heat.
The heat insulation container as described in any one of Claim 1- Claim 9. The heat insulation container comprises a spacer,
The air gap can be formed between the heat insulation container main body and the cover sheet by sandwiching the spacer between the heat insulation container main body and the cover sheet. Insulated container as described in.   The heat insulation container according to claim 11, wherein the spacer is integrally formed with the cover sheet. The heat insulation container according to claim 11, wherein the spacer comprises an air gap inside.

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