JP7077569B2 - Insulation container with vacuum heat insulating material - Google Patents

Description

The present invention relates to a heat insulating container in which a vacuum heat insulating material is used.

The vacuum heat insulating material has a core material and an exterior material, and the core material is arranged inside the bag made of the exterior material, and the vacuum heat insulating material is held in a vacuum state where the pressure is lower than the 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 the general foam heat insulating material, the thickness of the heat insulating material can be reduced while ensuring the desired heat insulating property. Therefore, by using the vacuum heat insulating material for the heat insulating container, it becomes possible to reduce the weight and space of the heat insulating container.

Regarding a heat insulating container that can be opened and closed with the entire side surface of the container as a door, the following Patent Document 1 also has a door with an area one size smaller than the entire side surface of the box body, and this door can be opened and closed. The heat insulating box body is disclosed in Patent Document 2 below.

Japanese Unexamined Patent Publication No. 2004-189242 Japanese Unexamined Patent Application Publication No. 2003-279239

When storing insulation containers in cold storage, heat insulation or warehouses, or when loading them into box-shaped cargo trucks, it may be necessary to place the insulation containers in a narrow space with few gaps around them. In this case, even if the heat insulating container can be arranged, a work space for disassembling the heat insulating container and opening and closing the door of the heat insulating container is secured in order to attach a heat storage material later and to put in and take out additional luggage. There are things you can't do. This tendency is especially strong near the upper end of the heat insulating container.

If the entire side of the heat insulating container can be opened and closed as a door, the vacuum heat insulating material used for the heat insulating container may be damaged by hitting the door around when opening and closing the door during storage or loading on a truck. There is a possibility that it will end up. On the other hand, if the door is arranged so that the opening is smaller than the entire side surface of the heat insulating container from the beginning, the workability when storing the necessary luggage in the heat insulating container is poor, and the luggage cannot be stored sufficiently or the storage time is long. May be required.

An object of the present disclosure is to make the vacuum heat insulating material less likely to be damaged while improving the workability of loading and unloading luggage in a heat insulating container using the vacuum heat insulating material.

The present disclosure is a heat insulating container using a vacuum heat insulating material, wherein the heat insulating container is arranged on the side surface side of the heat insulating container and includes an openable and closable vacuum heat insulating panel using the vacuum heat insulating material. The openable vacuum heat insulating panel can be opened so that when the openable vacuum heat insulating panel is closed, an opening including an upper end position where the upper end of the openable vacuum heat insulating panel is located is formed. Moreover, the door portion is provided with a door portion, and the door portion is a heat insulating container using a vacuum heat insulating material which can be opened so that the upper end of the door portion is lower than the upper end position.

Further, the door portion may be a heat insulating container that can be opened so as to form an opening including the upper end position.

Further, the door portion includes a first opening / closing portion and a second opening / closing portion arranged above the first opening / closing portion and connected to the first opening / closing portion, and the second opening / closing portion is on the upper side. The first opening / closing part and the second opening / closing part may be opened and closed together as a heat insulating container that can be opened downward from the door.

Further, the second opening / closing portion may be a heat insulating container whose width in the vertical direction can be changed when the second opening / closing portion is opened from top to bottom.

Further, the door portion may be a heat insulating container that can be bent from top to bottom.

Further, the second opening / closing portion may be a heat insulating container that opens toward the inside of the heat insulating container when opened from top to bottom.

Further, the door portion may be a heat insulating container that can be opened so that an opening is formed below the upper end position.

Further, the door portion can be opened so that an opening including the upper end position is formed, and the door portion is arranged inside the third opening / closing portion and the third opening / closing portion. A fourth opening / closing portion connected to a third opening / closing portion is provided, and the fourth opening / closing portion can be opened from top to bottom, left to right, or right to left, and the third opening / closing portion is provided. The portion and the fourth opening / closing portion may be a heat insulating container that can be opened / closed together.

According to the present disclosure, in a heat insulating container using a vacuum heat insulating material, it is possible to improve the workability of loading and unloading luggage and to prevent the vacuum heat insulating material from being damaged.

It is a perspective view explaining the structure of an example of the heat insulating container of this disclosure and 1st Embodiment. It is a perspective view explaining the inside of an example of the heat insulating container of 1st Embodiment. It is sectional drawing of the vacuum insulation member. It is a front view when the door part of the front insulation panel of the insulation container of 1st Embodiment is opened. It is a figure explaining an example of the disassembling process of the heat insulating container of 1st Embodiment. It is a figure explaining an example of the disassembling process of the heat insulating container of 1st Embodiment. It is a perspective view explaining the structure of an example of a heat insulating container of 2nd Embodiment. It is a perspective view explaining the structure of an example of a heat insulating container of 3rd Embodiment. It is a perspective view explaining the structure of an example of a heat insulating container of 4th Embodiment. It is a perspective view explaining each component of the heat insulating container of 4th Embodiment. It is a figure explaining the joint part of the vacuum insulation panel of the insulation container of 4th Embodiment. It is a perspective view explaining an example of the modification of the heat insulating container of 1st Embodiment. It is a perspective view explaining another example of the modification of the heat insulating container of 1st Embodiment. It is a perspective view explaining another example of the modification of the heat insulating container of 1st Embodiment. It is a perspective view explaining an example of the modification of the heat insulating container of 2nd Embodiment.

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

In addition, each figure shown below is shown schematically. Therefore, the size and shape of each part are exaggerated as appropriate to facilitate understanding. Further, in each figure, hatching showing a cross section of the member is omitted as appropriate. Numerical values and material names such as dimensions of each member described in the present specification are examples of embodiments, and are not limited thereto, 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.

1. 1. Overall of the heat insulating container of the present disclosure (a) Overall of the heat insulating container of the present disclosure This disclosure describes a heat insulating container in which the vacuum heat insulating material is used. The heat insulating container is arranged on the side surface and includes a vacuum heat insulating panel that can be opened and closed using the vacuum heat insulating material. A vacuum insulating panel that can be opened and closed can be opened so that when it is closed, an opening is formed that includes the top position where the top is located, and the door is provided with a door that is vacuumed at the top. It can be opened so that it is lower than the upper end position of the heat insulating panel.

(B) Demand for Insulated Containers of the present Disclosure Insulated containers are used, for example, in the field of logistics for the storage and transportation of articles that require cold or heat insulation. In such a heat-insulating container, generally, the inside of the container in which articles can be stored is a heat-insulating space surrounded by a heat-insulating panel, so that the temperature change inside the container is suppressed as much as possible. It is configured. A certain thickness is required for the heat insulating panel to ensure the heat insulating performance. Therefore, the heat-insulating container has a problem that the volume inside the container is smaller than that of a normal container. Therefore, by using a vacuum heat insulating panel that includes a vacuum heat insulating material whose heat insulating performance per unit thickness is higher than that of a general foam heat insulating material, the thickness of the heat insulating material can be increased while ensuring the desired heat insulating property. It is made thinner to improve storage efficiency.

However, when the heat insulating containers are stored in a two-tiered storage such as a cold storage, if the lighting fixtures, air conditioners, pipes, and beam structures suspended from the ceiling are stacked while bypassing the structure, the door of the heat insulating container should be opened in that state. If you try to open it again, the upper edge of the door may collide with these structures. Also, when loading a heat-insulated container into a box-shaped cargo truck and delivering luggage, the vehicle is stopped at the side of the road, and when taking out the necessary luggage immediately, the side door is opened rather than the rear door of the truck. Workability is better. However, the side door is designed so that the upper end position of the opening when the door is opened is low due to the safety and strength of the vehicle body. Therefore, if the rear door of the vehicle is opened and the loaded cargo in the heat insulating container is taken out by opening the side door, the upper end of the door may collide with the opening of the vehicle when the door of the heat insulating container is opened. ..

In this way, when the door of the heat insulating container is opened after the heat insulating container is placed in the cold storage or the vehicle, if the upper end of the door hits the cold storage or the structure of the vehicle, not only the workability is hindered but also the workability is hindered. , There is a possibility of damaging the vacuum heat insulating material used in the door part. For example, in the case of the foam heat insulating material, even if a part of the foam heat insulating material is damaged, the deterioration of the heat insulating property is limited to the damaged part, but in the vacuum heat insulating material, a part of the vacuum heat insulating material is If it is damaged, the heat insulating property of the entire vacuum heat insulating material will be reduced. Therefore, it is necessary to have a heat insulating container that can prevent the vacuum heat insulating material from being damaged while improving the workability of loading and unloading luggage.

(C) Main structure of the heat insulating container The heat insulating container of the present disclosure is arranged on the side surface side and includes a vacuum heat insulating panel which can be opened and closed and the vacuum heat insulating material is used. The openable and closable vacuum insulation panel can be opened so that when it is closed, an opening is formed that includes the top position where the top is located. As a result, when storing or storing luggage before transportation, it is possible to work while securing an opening including the upper end position of the vacuum heat insulating panel that can be opened and closed, so that workability at the time of storage is improved.

Further, the heat insulating container of the present disclosure includes a door portion, and the door portion can be opened so that the upper end thereof is lower than the upper end position of the vacuum heat insulating panel. This allows the door to be opened so that the top edge is lower than the top edge position of the vacuum heat insulating panel when the luggage is taken out of the heat insulating container that has been stored and stored or loaded on the truck for transportation. In particular, since the door portion can be opened while avoiding the obstacle at the upper end portion, the risk of hitting the door portion against the obstacle and damaging the vacuum heat insulating material can be reduced.

The above will be specifically described with reference to the figures. 1A and 1B are perspective views showing an example of the heat insulating container of the present disclosure, FIG. 1A shows a state in which all openable and closable vacuum heat insulating panels are closed, and FIG. 1B shows a part of a door portion. Indicates the opened state. In FIG. 1A, the heat insulating container 100 includes a front heat insulating panel 150 having a substantially rectangular outer surface shape on the front side. The front heat insulating panel 150 is one of the vacuum heat insulating panels that can be opened and closed, including a plurality of opening and closing portions. As will be described later, the vacuum heat insulating panel is composed of a vacuum heat insulating member including the vacuum heat insulating material, or is composed of the vacuum heat insulating member and the protective material and other members.

A first opening / closing portion 151 and a second opening / closing portion 181 connected above the first opening / closing portion 151 are arranged in the upper left portion of the constituent portions of the front heat insulating panel 150. As shown in FIG. 1 (b), the first opening / closing portion 151 can be opened toward the front side with the vertical direction passing through the left end portion as a rotation axis and can be closed in the original state. Further, the second opening / closing portion 181 is opened toward the outside of the heat insulating container 100 with respect to the first opening / closing portion 151 with the left-right direction passing through the connecting portion with the first opening / closing portion 151 as a rotation axis. Can be closed to.

Further, the first opening / closing portion 151 and the second opening / closing portion 181 are connected to each other to form a door portion. In the present disclosure, the door portion refers to an integrated opening / closing portion composed of a plurality of opening / closing portions connected in this way, and a case where the door portion does not have a connected opening / closing portion and refers to only one opening / closing portion. It is a general term that includes both. The door portion is used not only for the door portion in which the third opening / closing portion and the fourth opening / closing portion are connected, which will be described later, but also for indicating an independent opening / closing portion and an auxiliary opening / closing portion.

Further, a first opening / closing portion 152 and a second opening / closing portion 182 connected above the first opening / closing portion 152 are arranged in the upper right portion of the constituent portions of the front heat insulating panel 150. Also, as shown in FIG. 1 (b), the first opening / closing portion 152 can be opened toward the front side with the vertical direction passing through the right end portion as a rotation axis, and can be closed in the original state. Further, the second opening / closing portion 182 is opened toward the outside of the heat insulating container 100 with respect to the first opening / closing portion 152 with the left-right direction passing through the connecting portion with the first opening / closing portion 152 as the rotation axis. Can be closed to. The first opening / closing section 152 and the second opening / closing section 182 are also connected to each other to form a door section, similarly to the first opening / closing section 151 and the second opening / closing section 181.

Further, below the first opening / closing portions 151 and 152, auxiliary opening / closing portions 162 constituting another door portion are arranged. The auxiliary opening / closing portion 162 can be opened / closed with the left-right direction passing through the lower end portion thereof as a rotation axis. The front heat insulating panel 150 is composed of a door portion composed of a first opening / closing portion 151 and a second opening / closing portion 181; a door portion composed of a first opening / closing portion 152 and a second opening / closing portion 182, and an auxiliary opening / closing portion 162. It is composed of doors. However, the front heat insulating panel 150 may not be provided with an auxiliary opening / closing portion, or may be provided with an additional door portion or a plate portion that does not open / close.

When the first opening / closing portion 151 is opened, an opening including the upper end position of the original front heat insulating panel 150 is formed, and the workability of loading / unloading the luggage after opening is good. Further, the door portion composed of the first opening / closing portion 151 and the second opening / closing portion 181 opens the first opening / closing portion 151 while moving the second opening / closing portion 181 from the top to the bottom with respect to the first opening / closing portion 151. By opening together, the upper end of the door portion can be opened so as to be lower than the upper end position of the original front heat insulating panel 150. This makes it possible to reduce the risk of the door portion hitting an obstacle and damaging the vacuum heat insulating material when the load is taken out from the heat insulating container that has been stored or loaded on the truck for transportation. The same applies to the door portion composed of the first opening / closing portion 152 and the second opening / closing portion 182.

(D) Ancillary structure of the heat insulating container The second opening / closing part may have a structure capable of changing the width in the vertical direction when opening from the top to the bottom. For example, as in the modification described later, the second opening / closing portion itself has a structure in which a plurality of plate materials are connected, and each plate material can be rotationally moved with respect to the adjacent plate material. Alternatively, it can be realized by making the second opening / closing part itself made of a flexible and flexible material and having a structure in which the second opening / closing part itself bends while continuously changing the width in the vertical direction. With such a structure, when the space at the upper end can be secured in the stored state or in the state of being loaded on the truck, the temperature inside the heat insulating container can be partially opened without opening the entire second opening / closing part. It can be maintained effectively.

Further, the door portion may have a structure that can be bent from top to bottom. This also has a structure in which upper and lower two-stage opening / closing portions that can be bent from top to bottom are connected to each other, as in the fourth embodiment and modification described later, with the upper opening / closing portion and the lower opening portion. It can be the first opening / closing part. At this time, by continuing the operation of opening the upper second opening / closing portion, the first opening / closing portion can be opened together as it is, and the workability is improved as compared with the structure requiring the operation of opening the opening / closing portions separately.

Further, the structure may be such that when the second opening / closing portion is opened from the top to the bottom, the second opening / closing portion opens toward the inside of the heat insulating container. When the space outside the heat insulating container is small in the stored state or in the state of being loaded on the truck, the second opening / closing part can be opened without any trouble.

Further, the door portion may have a structure that can be opened so that an opening is formed below the upper end position of the original front heat insulating panel 150. This is, for example, by making the door portion composed of an independent opening / closing portion that operates independently without connecting the parts corresponding to the first opening / closing portion and the second opening / closing portion, as in the second embodiment described later. This can be achieved by opening only the independent opening / closing part below it without opening the independent opening / closing part at the top.

Further, the door portion can be opened so as to form an opening including the upper end position, and the door portion is arranged with the third opening / closing portion and inside the third opening / closing portion, and is connected to the third opening / closing portion. A fourth opening / closing part is provided, the fourth opening / closing part can be opened from top to bottom, left to right, or right to left, and the third opening / closing part and the fourth opening / closing part can be opened / closed together. It can also have a similar structure. As in the third embodiment described later, a fourth opening / closing portion, which is a size smaller than this, is provided inside the third opening / closing portion, which is an outer opening / closing portion, with respect to the third opening / closing portion. It is rotatably connected. By doing so, it is possible to improve workability without hitting the door portion by changing the opening method of the opening / closing portion between the case where there is a large work space and the place where there is no space.

Incidentally, the above-mentioned first to fourth opening / closing portions and independent opening / closing portions can be opened so that the vacuum insulating panel that can be opened and closed in the heat insulating container of the present disclosure forms an opening including the upper end position thereof. Moreover, the opening / closing portion directly involved in the function that the door portion can be opened so that the upper end thereof is lower than the upper end position of the vacuum insulation panel is shown. On the other hand, the auxiliary opening / closing unit indicates an opening / closing unit that is not directly involved in these functions, but the definition is not necessarily strict, and for example, the auxiliary opening / closing unit may be involved in the above functions.

Further, the present disclosure is not limited to a heat insulating container for a relatively light weight container and a lightweight baggage, in which the vacuum heat insulating member including the vacuum heat insulating material is used as a vacuum heat insulating panel, as in the fourth embodiment. The same can be applied to a heat insulating container having a load-bearing resistance to two-tiered stacking, etc., in which the outside is surrounded by a protective material such as plastic cardboard and a reinforcing frame portion is arranged around the protective material. Furthermore, it can be applied to a heat insulating container that can be assembled and disassembled, and also to a heat insulating container that cannot be disassembled or folded and is fixed in the assembled state.

2. 2. First Embodiment (a) Configuration of a heat insulating container.
Next, the first embodiment will be described. FIG. 1 is a perspective view showing an example of the heat insulating container of the first embodiment, which is also described as the whole of the heat insulating container of the present disclosure described above. FIG. 1A shows a heat insulating container 100 in a state where two doors that can be opened and closed are closed, and FIG. 1B shows a heat insulating container 100 in a state where a part of the doors is opened. show. The first opening / closing portion 151 on the left side can be opened toward the front side with the left end portion as a rotation axis. A second opening / closing portion 181 which is a smaller opening / closing portion is rotatably connected to the first opening / closing portion 151 at the upper end of the first opening / closing portion 151. The second opening / closing portion 181 can be opened and closed separately regardless of the opening degree of the first opening / closing portion 151, and the opening direction thereof is the direction toward the outside of the heat insulating container 100.

Further, the first opening / closing portion 152 on the right side and the second opening / closing portion 182 are arranged symmetrically with respect to the first opening / closing portion 151 and the second opening / closing portion 181 on the left side. The first opening / closing portion 152 can be opened toward the front side with the right end portion as a rotation axis. A second opening / closing part 182 is rotatably connected to the upper end of the first opening / closing part 152 with respect to the first opening / closing part 152, and the second opening / closing part 182 opens / closes regardless of the opening degree of the first opening / closing part 152. Can be made to. The opening direction is the direction toward the outside of the heat insulating container 100, similarly to the second opening / closing portion 181. The first opening / closing section 151 and the first opening / closing section 152 are provided with handles 103 for improving the workability of opening and closing, but they are not always necessary.

As shown in FIG. 1A, when all the doors of the heat insulating container 100 are closed, the front surface of the heat insulating container 100 forms a front heat insulating panel 150 having a rectangular outer shape. As shown in FIG. 1 (b), as a constituent member of the heat insulating container 100, a bottom heat insulating panel 190 is placed on a pallet 500 laid on the floor surface so that the main surface thereof is in contact with the pallet 500. The top heat insulating panel 170 is arranged at the upper end of the heat insulating container 100 which is opposite to the pallet 500 when viewed from the bottom heat insulating panel 190. Further, as four side heat insulating panels arranged on the side surface between the bottom heat insulating panel 190 and the top heat insulating panel 170, the front heat insulating panel 150 is further on the front side, and the back heat insulating panel 140 is further on the back side facing the front heat insulating panel. The left side heat insulating panel 130 and the right side heat insulating panel 120 are arranged so as to be adjacent to the left side and the right side of the front heat insulating panel 150, respectively. In the present embodiment, the bottom heat insulating panel 190, the top heat insulating panel 170, the front heat insulating panel 150, the back heat insulating panel 140, the left heat insulating panel 130 and the right heat insulating panel 120 are all vacuum heat insulating panels including the vacuum heat insulating material. Of these, only the front heat insulating panel 150 can be opened and closed.

Here, the direction from the bottom heat insulating panel 190 to the top heat insulating panel 170, which is perpendicular to the panel surface of the bottom heat insulating panel 190, is the + Z direction or the upward direction, and the direction opposite to the + Z direction is the −Z direction or the downward direction. The + Z direction and / or the −Z direction may be simply referred to as the Z direction or the vertical direction. Of the horizontal planes that are perpendicular to the + Z direction, the direction from the back heat insulating panel 140 to the front heat insulating panel 150, which is perpendicular to the panel surface of the back heat insulating panel 140, is the + X direction or the front side, and the opposite direction to the + X direction is-. X direction or the back side. The + X direction and / or the -X direction may be simply referred to as the X direction. The direction from the left heat insulating panel 130 to the right heat insulating panel 120, which is perpendicular to the panel surface of the right heat insulating panel 120 perpendicular to the + X direction, is the + Y direction or the right side, and the direction opposite to the + Y direction is the −Y direction or the left side. The + Y direction and / or the −Y direction may be simply referred to as the Y direction or the left-right direction.

Further, the main surface of each panel is the panel surface, and the other than the main surface is the end surface. The panel surface side on the heat insulating space side of each panel is the inside of the panel, and the panel surface side opposite to the panel surface side on the heat insulating space side is the outside of the panel.

In the heat insulating container 100 of the present embodiment, the front heat insulating panel 150, the left heat insulating panel 130, the back heat insulating panel 140, the right heat insulating panel 120, the bottom heat insulating panel 190 and the top heat insulating panel 170 are all vacuum heat insulating panels including the vacuum heat insulating material. It is composed of. The front heat insulating panel 150 is a vacuum heat insulating panel that can be opened and closed to the left and right, and is rotatably connected to the upper ends of the first opening and closing portions 151 and 152 that open and close the main body of the heat insulating container 100. It includes second opening / closing portions 181 and 182 that open / close relative to one opening / closing portion.

Further, the heat insulating container 100 can open the first opening / closing portion 151 so that the front heat insulating panel 150 forms an opening including the upper end position of the front heat insulating panel 150 adjacent to the top heat insulating panel 170. Further, by rotating the second opening / closing portion 181 with respect to the first opening / closing portion 151, the first opening / closing portion 151 and the second opening / closing portion 181 are configured so as to be lower than the upper end position of the front heat insulating panel 150. You can open the door. The same applies to the first opening / closing portion 152 and the second opening / closing portion 182.

From this, when the first opening / closing portions 151 and 152 are opened, an opening is formed in the region including the upper end position of the front heat insulating panel 150, and the second opening / closing portion is formed in addition to the first opening / closing portions 151 and 152. By opening 181 and 182, the height of the door portion including the first opening / closing portion and the second opening / closing portion can be opened so as to be lower than the upper end position 200 of the front heat insulating panel 150. Therefore, when storing the luggage, an opening is formed in the area including the upper end position of the front heat insulating panel 150 to ensure good workability, and when only a narrow upper end space is obtained during storage and transportation. By opening the door portion including the first opening / closing portion and the second opening / closing portion so as to be lower than the upper end position 200 of the front heat insulating panel 150, the vacuum heat insulating material inside is damaged by hitting the door portion. The risk of can be reduced.

In FIG. 1 (b), the heat storage material storage portion 401 is attached to the inner side surface of the left side heat insulating panel 130 and the back heat insulating panel 140 of the heat insulating container 100. Although not shown, a similar heat storage material storage portion can be provided on the inside of another side heat insulating panel or the top heat insulating panel 170. The heat storage material storage unit 401 can take in and out a predetermined heat storage material such as a cold insulation material or a heat insulation material, and can be provided with an opening / closing unit for preventing the heat storage material from falling off or misaligning as needed. .. In addition to the mode in which the heat storage material storage unit 401 is fixed in advance to the heat insulating panel, the heat storage material storage unit 401 may be suspended from the heat insulating panel and attached / detached together with the storage unit in which the heat storage material is stored.

FIG. 2 is a perspective view illustrating the inside of the heat insulating container 100 of FIG. 1 (a). As shown in FIG. 2, when all the doors are closed, a heat insulating space 300 as shown by a broken line surrounded by each heat insulating panel can be formed inside the heat insulating container 100. Since the heat insulating space 300 is surrounded by each heat insulating panel to maintain heat insulating properties with respect to an external temperature environment, the stored luggage can be suitably maintained within a predetermined temperature range.

Further, since the heat insulating container 100 is placed on the pallet 500 having the claw hole 501, the heat insulating container 100 containing the luggage can be easily moved together with the pallet by a forklift or a hand lift when moving to a warehouse or a truck. Can be made to. Even if the heat insulating container 100 is placed directly on the floor without using a pallet, it can be easily moved by simply placing it on a trolley.

(B) Vacuum Insulation Member FIG. 3 is a cross-sectional view of a vacuum insulation member 330 constituting each insulation panel of the insulation container 100 in the present embodiment. The vacuum heat insulating panel may be composed of only the vacuum heat insulating member 330, and in addition, the vacuum heat insulating panel may be formed by further attaching a protective material for reinforcement or the like.

FIG. 3A is a cross-sectional view showing an example of the structure of the vacuum heat insulating member 330. The vacuum heat insulating member 330 is composed of the vacuum heat insulating material 331, the foam heat insulating material 332 surrounding the vacuum heat insulating material 331, and the protective base material 338 surrounding the foam heat insulating material 332. Further, the heat insulating sheet 333 is the vacuum heat insulating member 330. It surrounds the protective substrate 338. As the protective base material, for example, a member made of an organic polymer can be used.

Since the foam heat insulating material 332 is arranged on both sides of the end face of the vacuum heat insulating material 331, the heat insulating performance is compared with the case where the foam heat insulating material 332 is not arranged on both sides of the end face of the vacuum heat insulating material 331 and is a space. Is improved. Further, since the amount of the foamed heat insulating material used can be reduced, the thickness of the vacuum heat insulating member itself can be reduced. Although not shown, the structure of the vacuum heat insulating member 330 includes the vacuum heat insulating material 331, the foamed heat insulating material 332 surrounding the vacuum heat insulating material 331, the heat insulating sheet 333 surrounding the foamed heat insulating material 332, and the protective base material surrounding the heat insulating sheet. It may be composed of 338.

Further, FIG. 3B is a cross-sectional view showing another example of the structure of the vacuum heat insulating member 330. The vacuum heat insulating member 330 is composed of the vacuum heat insulating material 331, the foam heat insulating material 332 that surrounds both one of the main surfaces and the end faces of the vacuum heat insulating material 331, and the heat insulating sheet 333 that encloses the entire outer periphery thereof. Also in this case, since the foam heat insulating material 332 is arranged on both sides of the end face of the vacuum heat insulating material 331, the foam heat insulating material 332 is not arranged on both sides of the end face of the vacuum heat insulating material 331 and is a space. Therefore, the heat insulating performance is improved.

The vacuum heat insulating material 331 is composed of a core material 331a and an exterior material 331b. Since the vacuum heat insulating material 331 cannot maintain the vacuum when the exterior material 331b is damaged and cannot obtain the desired heat insulating property, the vacuum heat insulating material 331 is the foam heat insulating material 332 on the heat insulating space side. Is placed. This makes it possible to reduce the risk of damaging the vacuum heat insulating material 331 when the articles placed in the heat insulating space collide with each other. In the configuration of FIG. 3B, it is desirable that the vacuum heat insulating material 331 is protected by the protective material arranged on the side opposite to the heat insulating space.

When forming the vacuum heat insulating member 330 shown in FIGS. 3A and 3B, the vacuum heat insulating material 331 is first set in the mold, and then the foam heat insulating material 332 is integrally molded by injection molding. However, in addition to this, for example, those manufactured separately from each other may be joined later with 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 prepared and stored, the manufacturing method is flexible and it is easy to replace only the vacuum heat insulating material, so that maintainability can be improved. ..

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

As shown in FIGS. 3A and 3B, the vacuum heat insulating material 331 is composed of a core material 331a and an exterior material 331b having a gas barrier property, and is obtained by reducing the pressure inside the exterior material 331b. It is a heat insulating material. As the core material 331a, a material used as a core material of a known vacuum heat insulating material that has been conventionally used can be used. For example, a powder such as silica, a foam such as urethane polymer, a fiber body such as glass wool, etc. can be used. You may use the porous body of.

The exterior material 331b is a member that covers the outer periphery of the core material 331a, 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.

The gas barrier property of the exterior material 331b may be such that the oxygen permeability is 0.5 cc · m ⁻² · day ^-1 or less, and above all, 0.1 cc · m − ² · day ^-1 or less. Further, the water vapor transmission rate may be 0.2 cc · m ⁻² · day ^-1 or less, particularly 0.1 cc · 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, especially 10 mW · m ^-1 · K ^-1 or less, especially 5 mW · m ^-1 · K ^-1 in an environment of 25 ° C. It may be as follows.

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

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

As the protective base material 338, for example, an organic polymer material such as plywood, foam material, resin plate, embossed resin sheet, or paperboard, or a ceramic member 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 so that the vacuum heat insulating material 331 can be visually recognized from the outside. For example, a region where the foamed heat insulating material 332, the heat insulating sheet 333, and the protective base material 338 do not exist may be provided, and a part or all of them may be made transparent. When the vacuum heat insulating material 331 is damaged and abnormal deformation occurs on the surface, the damaged state of the vacuum heat insulating material can be confirmed without damaging the inner heat insulating panel.

(C) Front Insulation Panel As shown in FIG. 1A, the front insulation panel 150 is rotatably connected to the two openable and closable first opening / closing portions 151 and 152 and the upper ends thereof. In addition to the opening / closing portions 181 and 182, an auxiliary opening / closing portion 162 arranged below the first opening / closing portions 151 and 152 is further provided. The first opening / closing portions 151 and 152 and the auxiliary opening / closing portion 162 are configured by a vacuum heat insulating panel having a cross-sectional structure as shown in FIG. 3A. The second opening / closing portions 181 and 182 may also have the same configuration, but if the width in the height direction is small, the internal volume of the plate material becomes small, and it may be difficult to arrange the vacuum heat insulating material inside. For example, in FIG. 3A, the vacuum heat insulating material 331 may be removed.

Although the auxiliary opening / closing portion 162 is not normally used, it can be opened in the + X direction side around the rotation axis along the Y direction through the end portion of the front heat insulating panel 150 on the −Z direction side. The auxiliary opening / closing section 162 is provided separately from the first opening / closing section on the upper side in order to prevent the cold air accumulated under the heat insulating space from escaping to the outside by taking in and out the luggage, for example, when the luggage is kept cold. Therefore, it can be operated without opening and closing except for special cases such as removing the dew condensation water accumulated below or putting in and taking out a large baggage.

The vicinity of the rotation axis of the first opening / closing portions 151 and 152 and the auxiliary opening / closing portion 162 is detachably connected to the adjacent heat insulating panel by a hook-and-loop fastener (not shown), but the present invention is not limited to this, and other than fasteners, buttons, hinges, etc. The outermost surfaces of the door portion and the adjacent heat insulating panel may be connected by a flexible plastic sheet, a film, a non-woven fabric, a cloth, or the like. .. The same applies to the connection of the second opening / closing portions 181 and 182 to the first opening / closing portions 151 and 152.

Here, the formation of the opening by opening and closing the front heat insulating panel 150 and the opening and closing of the door portion will be described in detail.

FIG. 4 is a front view of the heat insulating container 100 as seen from the + X direction side when the first opening / closing portions 151 and 152 and the auxiliary opening / closing portion 162 of the front heat insulating panel 150 are opened. FIG. 4A shows a state in which the second opening / closing portions 181 and 182 are not opened with respect to the first opening / closing portions 151 and 152, respectively, that is, the first opening / closing portion 151, the second opening / closing portion 181, and the first opening / closing portion. The first opening / closing portions 151 and 152 are opened in a state where the outer surfaces of the portions 151 and the second opening / closing portion 181 form substantially the same plane, respectively. On the other hand, in FIG. 4B, the second opening / closing portions 181 and 182 are directed from the + Z direction side to the −Z direction side with respect to the first opening / closing portions 151 and 152, respectively, that is, from the top to the bottom. In the opened state, the first opening / closing portions 151 and 152 are opened.

The hatched portion, which is the area surrounded by the left heat insulating panel 130, the top heat insulating panel 170, the right heat insulating panel 120, and the bottom heat insulating panel 190 in FIG. 4A, opens the openable portion of the front heat insulating panel 150. The opening S formed at the time is shown. The upper end of the opening S coincides with the upper end position 200 when the front heat insulating panel 150, which is a vacuum heat insulating panel that can be opened and closed, is closed. In the present embodiment, the upper end position 200 also coincides with the lower end position of the top surface heat insulating panel 170. Since the opening S is formed in the area including the upper end position 200, sufficient space for loading and unloading luggage is secured when the required door portion is opened, and workability is improved.

In FIG. 4A, when the height from the lower end of the bottom heat insulating panel 190 to the upper end position 200 of the front heat insulating panel 150 is h1, and the width of the second opening / closing portion 182 in the Z direction is h3, the first opening / closing The height h2 from the lower end of the bottom heat insulating panel 190 to the upper end 210 of the portion 152, that is, the boundary portion between the first opening / closing portion 152 and the second opening / closing portion 182 is the difference between h1 and h3. In FIG. 4A, since the second opening / closing section 182 is not opened with respect to the first opening / closing section 152, the first opening / closing section 152 and the second opening / closing section 182 when the first opening / closing section 152 is opened are displayed. The height of the combined door portion from the lower end of the bottom heat insulating panel 190 is substantially equal to h1.

On the other hand, in FIG. 4B, the second opening / closing portion 182 is opened from the + Z direction to the −Z direction with respect to the opened first opening / closing portion 152, that is, from the top to the bottom. When the first opening / closing portion 152 is opened, the height of the door portion including the first opening / closing portion 152 and the second opening / closing portion 182 from the lower end of the bottom heat insulating panel 190 is substantially equal to h2. In other words, the height of the door portion is lower than the height of the upper end position 200 of the front heat insulating panel 150 when the door portion is closed by h3, which is the width in the height direction of the second opening / closing portion 182. Even if the height reference is changed to a position different from the lower end of the bottom heat insulating panel 190, this relationship does not change. Further, in the present embodiment, the first opening / closing portions 151 and 152 and the second opening / closing portions 181 and 182 have a symmetrical structure to each other. Therefore, the above relationship also applies to the first opening / closing portion 151 and the second opening / closing portion 181. apply.

Therefore, when the first opening / closing portions 151 and 152 are opened, an opening is formed in the region including the upper end position of the front heat insulating panel 150 as shown in FIG. 4A, and as shown in FIG. 4B. By opening the second opening / closing portions 181 and 182 in addition to the first opening / closing portions 151 and 152, the height of the door portion including the first opening / closing portion and the second opening / closing portion can be adjusted from the upper end position 200 of the front heat insulating panel 150. Can be opened so that it is also low. Further, the second opening / closing portions 181 and 182 can be opened from the top to the bottom, and the first opening / closing portions 151 and 152 and the second opening / closing portions 181 and 182 can be opened and closed together. be.

As a result, in the heat insulating container 100 of the present embodiment, when loading and unloading luggage and heat storage material, the door portion can be opened over a wide area up to the upper end position of the heat insulating panel that can be opened and closed. Therefore, workability is good. Further, when the heat insulating container 100 after storing the luggage is temporarily stored in a space where the upper side of the cold storage or the like is narrow before transportation, and then the additional luggage and the heat storage material are taken in and out, the door portion is attached to the upper structure. The door can be opened and closed at a low height without hitting the door, and the vacuum heat insulating material inside the door can be prevented from being damaged. Alternatively, when the heat insulating container 100 is loaded on a box-shaped cargo truck so that the door faces the side of the truck and the side door of the truck is opened at the delivery destination to take out the luggage, the upper end of the opening on the side surface is used. Since the door can be opened and closed so as not to hit the door of the heat insulating container, the vacuum heat insulating material inside the door can be less likely to be damaged.

(D) Left, right and back heat insulating panels The left heat insulating panel 130, the right heat insulating panel 120 and the back heat insulating panel 140 are heat insulating panels having no door portion, and are the same as the front heat insulating panel 150 in the cross section of FIG. 3 (a). It is composed of a vacuum heat insulating member including a vacuum heat insulating material having. However, the left side heat insulating panel 130, the right side heat insulating panel 120 or the back side heat insulating panel 140, or the top surface heat insulating panel 170 described later may be provided with a door portion. FIG. 5 is a plan view and a front view of the heat insulating container 100. FIG. 5A shows a plan view of the heat insulating container 100 as seen from the + Z direction when the top heat insulating panel 170 of the heat insulating container 100 is removed, and FIG. 5B shows a plan view when the front heat insulating panel 150 is removed. The front view of the heat insulating container 100 seen from the + X direction of is shown.

As shown in FIG. 5A, the four heat insulating panels constituting the side heat insulating panel are in contact with the panel surface of the back heat insulating panel 140 and the end faces of the left side heat insulating panel 130 and the right side heat insulating panel 120. Similarly, the panel surfaces of the second opening / closing portions 181 and 182 constituting the front heat insulating panel 150 are in contact with the end faces of the left heat insulating panel 130 and the right heat insulating panel 120.

FIG. 3 (c) shows an enlarged cross section cut along a plane perpendicular to the Z direction in the portion A showing the vicinity of the contact portion between the left surface heat insulating panel 130 and the back cross section panel 140 in FIG. 5 (a). The airtightness of the heat insulating space can be maintained by abutting the end surface 330a of the vacuum heat insulating member 330 of the left side heat insulating panel 130 and the panel surface 330b of the vacuum heat insulating member 330 of the back cross section panel 140. The heat insulating panels are detachably engaged with each other by a hook-and-loop fastener (not shown) on the outer surface side. As described above, this may be another engagement method such as a fastener or a button, in which the outermost surfaces of adjacent heat insulating panels are connected to each other by a flexible plastic sheet, film, non-woven fabric, cloth or the like. You may.

(E) Bottom Insulation Panel The bottom insulation panel 190, like each side insulation panel, is also composed of a vacuum heat insulating member including the vacuum heat insulating material having the cross section of FIG. 3 (a). However, since the bottom heat insulating panel 190 is a portion where the load of the stored luggage is directly applied, the vacuum heat insulating material may not be used in consideration of damage to the vacuum heat insulating material. Alternatively, a protective sheet such as a plastic cardboard may be laid above the bottom heat insulating panel 190 to reinforce it.

As shown in FIG. 5B, the bottom heat insulating panel 190 is in contact with the end faces of both ends thereof and the panel surfaces of the left heat insulating panel 130 and the right heat insulating panel 120. Further, the front heat insulating panel 150 and the back heat insulating panel 140 have the same contact relationship. The bottom heat insulating panel 190 is also detachably engaged with a surface fastener (not shown) on the outer surface side, like the joints between the other heat insulating panels.

(F) Top heat insulating panel The top heat insulating panel 170 is also composed of a vacuum heat insulating member including the vacuum heat insulating material having the cross section of FIG. 3A, like the side heat insulating panels and the bottom heat insulating panel 190. As shown in FIG. 5B, the top heat insulating panel 170 is in contact with the panel surface and the end faces of the left heat insulating panel 130 and the right heat insulating panel 120. Further, the front heat insulating panel 150 and the back heat insulating panel 140 have the same contact relationship. The top heat insulating panel 170 can be removed by simply lifting it up, but while it is being used as a heat insulating container, other heat insulating panels are used to prevent slippage when moving. Like the joints between the two, they are detachably engaged with a hook-and-loop fastener (not shown) on the outer surface side.

(G) Pallet When the heat insulating container is moved directly by a forklift or a hand lift, it is preferable to place the heat insulating container on the pallet, but a general pallet can be used. In the heat insulating container 100 of the present embodiment, a lightweight and rigid plastic T11 type flat pallet is used, but is not particularly limited, and is, for example, made of metal such as plastic, aluminum, aluminum alloy, wooden, or cardboard. There are pallets of various sizes such as. Further, instead of using a pallet, it may be stored flat on the floor and transshipped to a trolley or the like when necessary.

(H) Assembling and disassembling the main body of the heat insulating container The heat insulating container 100 of the present embodiment can be disassembled and reassembled in order to reduce the occupied volume when not in use. The disassembly method will be described with reference to FIGS. 5 and 6. FIG. 6 is a side view and an exploded view of the heat insulating container 100 as viewed from the right side. FIG. 6A is a side view of the heat insulating container 100 as viewed from the + Y direction when the right side heat insulating panel 120 is removed, and FIG. 6B is a state in which each disassembled heat insulating panel is folded + Z. It is a view from the direction.

First, as shown by the arrow B in FIG. 5B, the top heat insulating panel 170 is lifted upward and removed from the heat insulating container 100. Next, as shown by the arrow C in FIG. 6A, the bottom heat insulating panel 190 is raised clockwise with the joint portion between the bottom heat insulating panel 190 and the back heat insulating panel 140 as the rotation axis so as to overlap the back heat insulating panel 140. Moving. Further, as shown by the arrow D in FIG. 5A, the left heat insulating panel 130 is rotated counterclockwise around the joint portion between the left heat insulating panel 130 and the back heat insulating panel 140 so as to overlap the bottom heat insulating panel 190. Move to. Similarly, as shown by the arrow E, the right heat insulating panel 120 is rotated clockwise around the joint portion between the right heat insulating panel 120 and the back heat insulating panel 140 and moved so as to overlap the left heat insulating panel 130.

Finally, as shown in FIG. 6B, the top heat insulating panel 170 is inserted between the front heat insulating panel 150 and the right heat insulating panel 120, and the periphery is bound by a binding tool 101 such as a rubber band to complete the disassembly work. do. Assembling can be easily performed by reversing the above disassembly work. In this way, by making it compact when not in use, it is possible to improve the transportation efficiency when collecting only the heat insulating container by truck.

However, the present disclosure is not limited to the heat insulating container that can be disassembled and assembled in this way, and can be applied to a heat insulating container having a box-shaped structure that cannot be disassembled.

3. 3. Second Embodiment (a) Configuration of Insulation Container Next, the second embodiment will be described. FIG. 7 is a diagram showing a heat insulating container 100A in which an opening / closing portion that can be opened / closed to the left and right is provided independently below and above. FIG. 7A is a diagram in which the upper opening / closing portion is closed and the lower opening / closing portion is opened, and FIG. 7B is a diagram in which the upper opening / closing portion is also opened. These opening / closing portions are referred to as independent opening / closing portions. It is also called a door part including each independent opening / closing part. The structure of the heat insulating container 100A is the same as that of the heat insulating container 100 of the first embodiment except for the structure of the door portion of the front heat insulating panel 150.

(B) Front Insulation Panel The front insulation panel 150 of the insulation container 100A of the present embodiment is provided with a pair of left and right opening / closing portions that can be opened / closed in the left-right direction independently in two upper and lower stages. The upper part is the independent opening / closing part 155 on the left side and the independent opening / closing part 156 on the right side, and the lower part is the independent opening / closing part 153 on the left side and the independent opening / closing part 154 on the right side. The independent opening / closing portion 153 on the left side can be opened / closed with respect to the rotation axis along the Z direction of the portion adjacent to the left surface insulating panel 130, and the independent opening / closing portion 154 on the right side can be opened / closed in the Z direction of the portion adjacent to the right surface insulating panel 120. It can be opened and closed with respect to the axis of rotation along it. Further below, as in the first embodiment, an auxiliary opening / closing portion 162 that can be opened / closed in the vertical direction with respect to the rotation axis along the Y direction through the lower end in contact with the pallet 500 is provided.

In the present embodiment, the second opening / closing part is not connected to the upper end of the independent opening / closing part 153, 154 corresponding to the first opening / closing part in the first embodiment, and instead, rotational movement is performed independently of the second opening / closing part. Independent opening / closing portions 155 and 156 that can be provided are provided. The independent opening / closing portion 155 on the left side can be opened / closed with respect to the rotation axis along the Z direction of the portion adjacent to the left surface heat insulating panel 130, and the independent opening / closing portion 156 on the right side can be opened / closed in the Z direction of the portion adjacent to the right surface insulating panel 120. It can be opened and closed with respect to the axis of rotation along it.

As shown in FIG. 7A, when only the lower left and right independent opening / closing portions 153 and 154 are opened, the upper end position when the front heat insulating panel 150, which is the upper end of the closed independent opening / closing portions 155 and 156, is closed. The height of the upper end 210 of the open independent opening / closing portions 153 and 154 with respect to the height of 200 is lower by the width of the independent opening / closing portions 155 and 156 in the Z direction.

Further, as shown in FIG. 7B, when the upper independent opening / closing portions 155 and 156 are also opened, a wide area including the upper end position 200 becomes an opening, and the workability of loading and unloading luggage is improved. Therefore, also in the present embodiment, as in the first embodiment, the opening can be secured to a high position when the first load is taken in and out. Further, when the upper independent opening / closing portions 155 and 156 are closed and only the independent opening / closing portions 153 and 154 are opened, the position is lower than the upper end position 200 by the width of the independent opening / closing portions 155 and 156 in the height direction. It is also possible to form an opening having an upper end.

When loading and unloading luggage during storage and transportation, the door can be opened and closed so that the top is in a low position when there is no space at the top, which improves the workability of loading and unloading luggage and hits the door. Therefore, the risk of damage to the vacuum heat insulating material inside can be reduced. Furthermore, since the upper door is not connected to the lower door, only the lower door needs to be opened and closed without operating the upper door when loading and unloading luggage during storage and transportation. Workability is improved. In addition, since the opening when the door is opened can be narrowed, the risk of being exposed to the outside air more than necessary when opening the heat insulating container at the time of delivery and taking out the cargo can be reduced, and the quality of the cargo can be maintained. Can be suitably planned.

4. Third Embodiment (a) Configuration of Insulated Container Next, the third embodiment will be described. FIG. 8 is a diagram showing a heat insulating container 100B in which an opening / closing portion having a smaller size than this is formed in a nested structure inside the region of the opening / closing portion that can be opened / closed in the left-right direction. The outer opening / closing part is the third opening / closing part 160, and the inner opening / closing part is the fourth opening / closing part 161. An auxiliary opening / closing portion 162 is arranged below the third opening / closing portion 160. Other structures of the heat insulating container 100B are the same as those of the heat insulating containers 100 and 100A of the first and second embodiments.

(B) The front heat insulating panel third opening / closing part 160 can be opened / closed around the rotation axis along the Z direction passing through the right end of the front heat insulating panel 150, and the fourth opening / closing part 161 arranged inside the opening / closing part 161 can be opened / closed. At the right end of the portion adjacent to the third opening / closing portion 160, opening / closing is possible around a rotation axis along the Z direction. That is, the fourth opening / closing portion 161 can be opened from left to right. Further, the third opening / closing section 160 and the fourth opening / closing section 161 can be opened and closed together. On the other hand, although the auxiliary opening / closing portion 162 below the third opening / closing portion 160 is not normally used, it is opened in the + X direction around the rotation axis along the Y direction through the end portion on the −Z direction side of the front heat insulating panel 150. be able to.

By providing the opening / closing portion having the double opening / closing structure of the outside and the inside in this way, when the third opening / closing portion 160 is opened, a wide area including the upper end position 200 of the front heat insulating panel 150 of the heat insulating container 100B is opened. Therefore, the workability of loading and unloading luggage is improved. Further, when the third opening / closing portion 160 is closed and only the fourth opening / closing portion 161 is opened, only the difference in height between the upper end of the third opening / closing portion 160 and the upper end of the fourth opening / closing portion 161 is obtained from the upper end position 200. It is also possible to form an opening having a lower position as an upper end. Further, by opening only the fourth opening / closing portion 161 the height of the door portion can be opened so as to be lower than the upper end position of the front heat insulating panel 150. The door portion of the heat insulating container 100B includes an opening / closing portion inside which can be opened so that an opening is formed below the upper end position 200, and is opened so that an opening including the upper end position 200 is formed. It is a door part that can be used.

In the heat insulating container 100B, when the cargo is first stored, the door is opened so that a wide opening can be formed, and the door is opened so that the opening is small during delivery. Workability is improved because the work can be done only by opening and closing one door. The fourth opening / closing part may be opened not only from left to right but also from top to bottom or from right to left, and the third opening / closing part is also a fourth opening / closing part. Regardless of the opening / closing direction of, not only left-to-right but also top-to-bottom or right-to-left opening and closing may be possible.

5. Fourth Embodiment (a) Configuration of Insulation Container Next, the fourth embodiment will be described. In FIG. 9, an inner heat insulating panel in which each heat insulating panel is composed of a vacuum heat insulating member and an outer heat insulating panel which is a hard protective material are arranged on the outside thereof, and the outer peripheral portion of the outer heat insulating panel is a frame portion and a support portion. It is a figure explaining the reinforced and load-bearing heat insulating container 100C. 9 (a) is a view showing a state in which all the doors are closed, FIG. 9 (b) is a view in which the opening / closing portion above the front heat insulating panel is opened, and FIG. 9 (c) is a view showing a further central opening / closing portion. It is a figure opened additionally.

The present disclosure is also applicable to such a load-bearing heat insulating container. Normally, in such a heat insulating container, in order not to reduce the strength of the panel itself constituting the container, the opening and closing part is not complicated as much as possible, and the entire side surface can be opened and closed, or the structure is folded back at a position approximately half of the side surface. Often. However, in the heat insulating container 100C of the present embodiment, in order to cope with opening and closing during storage or transportation by a truck or the like, the uppermost portion has a door portion configuration such that the opening and closing portion can be folded back to the minimum necessary. There is. At this time, in order to prevent a decrease in strength, for example, a metal hinge may be used as the opening / closing mechanism of the door portion, or the frame portion surrounding the outer protective material may be made of metal.

The front heat insulating panel 150C is provided with a second opening / closing portion 183 above, a central portion of the front heat insulating panel 150C below the front opening / closing portion 183, and a first opening / closing portion 157 rotatably connected to the second opening / closing portion 183. A plate portion 163 that does not open and close is provided below. The second opening / closing part 183 and the first opening / closing part 157 form one door part, and each of them has a hinge 102 arranged in two stages along the Y direction as a fulcrum with respect to the first opening / closing part 157 and the plate part 163. Each of them is rotatably connected and can be opened by rotating in the + X direction. In addition to the heat insulating container 100C, the top heat insulating panel 170C can be opened and closed, and the front and back halves of the heat insulating container 100C with the hinge 102 arranged along the Y direction as a fulcrum at the substantially central portion of the width in the X direction. Each can be opened and closed.

FIG. 10 is a diagram illustrating each component of the heat insulating container 100C. The front heat insulating panels 150C and the back heat insulating panels 140C, which are the heat insulating panels except the bottom heat insulating panel 190C, are the inner heat insulating panels 150A and 140A arranged inside the heat insulating container 100C and the outer heat insulating panels arranged outside the inner heat insulating panels 150A and 140A, respectively. The outer insulating panels 150B and 140B are provided with 150B and 140B, and the outer peripheral portions of the outer heat insulating panels 150B and 140B are surrounded by a vertical support portion 310 and a horizontal frame portion 320.

Similarly, the left heat insulating panel 130C and the right heat insulating panel 120C also include inner heat insulating panels 130A and 120A arranged inside the heat insulating container 100C and outer heat insulating panels 130B and 120B arranged outside the inner heat insulating panels 130A and 120B, respectively. The outer peripheral portions of the panels 130B and 120B are surrounded by a vertical support portion 310 and a horizontal frame portion 320.

Further, the top heat insulating panel 170C includes an inner heat insulating panel 170A arranged inside the heat insulating container 100C and an outer heat insulating panel 170B arranged outside the heat insulating container 100C, and the outer peripheral side of the outer heat insulating panel 170B has a frame portion 320 on all four sides. It has an enclosed structure. Since the bottom heat insulating panel 190C is protected by the lower pallet, it does not have an outer heat insulating panel and is composed only of the inner heat insulating panel 190A.

When all the doors are closed, the heat insulating container 100C forms a heat insulating space 300 surrounded by each heat insulating panel, similarly to the heat insulating container 100 of the first embodiment. Further, since the heat insulating container 100C is placed on a pallet 500 having a claw hole 501, the heat insulating container 100 containing luggage can be easily moved to a warehouse or a truck by a forklift or a hand lift together with the pallet. Can be moved. Furthermore, since it has excellent load bearing capacity, there is little concern about deformation of the heat insulating container even when stacked in two layers. Further, even if the heat insulating container 100C is placed directly on the floor surface without using a pallet, it can be easily moved by simply placing it on a trolley. Similar to the heat insulating container 100 of the first embodiment, the heat storage container 100C can be provided with a heat storage material storage portion on the inner panel surface of each heat insulating panel in contact with the heat insulating space 300.

(B) Front Insulation Panel As shown in FIGS. 9 (a) to 9 (c), the front heat insulating panel 150C is provided with a second opening / closing portion 183 above and a first opening / closing portion 157 below, and is provided with a second opening / closing portion. The portions 183 and the first opening / closing portion 157 are rotatably connected to the first opening / closing portion 157 and the plate portion 163, respectively, by hinges 102 arranged in two stages along the Y direction.

The second opening / closing portion 183, the first opening / closing portion 157, and the plate portion 163, which constitute the front heat insulating panel 150C, are formed on an inner heat insulating panel composed of a vacuum heat insulating member as shown in FIG. 3 (b) and on the outside thereof. It is provided with an outer heat insulating panel which is a hard protective material, and has a structure in which the periphery of the outer heat insulating panel is reinforced by a horizontal frame portion and a vertical support portion. However, it is not necessary to surround all the periphery of each opening / closing portion with a frame portion or a support portion, and these members may be arranged only in a place particularly necessary in terms of strength. Further, when the width of the upper second opening / closing portion 183 in the height direction is small, the internal volume of the plate material is small, and it may be difficult to arrange the vacuum heat insulating material inside. Therefore, for example, FIG. In (a), the inner heat insulating panel may be configured excluding the vacuum heat insulating material 331.

Since the front heat insulating panel 150C has such a structure, the front heat insulating panel 150C, which is a vacuum heat insulating panel including a vacuum heat insulating member that can be opened and closed, has a front heat insulating panel 150C when closed, as shown in FIG. 9 (c). The entire door portion including the second opening / closing portion 183 and the first opening / closing portion 157 can be opened so that the opening including the upper end position 200 of the above is formed. Further, as shown in FIGS. 9 (b) and 9 (c), the first opening / closing section is opened by first opening the second opening / closing section 183 and then opening the adjacent lower first opening / closing section 157. The door portion including the 157 and the second opening / closing portion 183 can be opened so as to be lower than the upper end position 200. Further, the second opening / closing part 183 can be opened from the top to the bottom, and as a method of opening the door part, the second opening / closing part 183 may be opened first and then the first opening / closing part 157 may be opened. It is also possible to open the 1 opening / closing part 157 and the 2nd opening / closing part 183 together. As described above, the door portion of the present embodiment has a structure that can be bent from the top to the bottom, and the door portion has a structure in which the upper and lower two-stage opening / closing portions are connected to each other. By continuing the operation of opening the second opening / closing part 183, the first opening / closing part 157 can be opened together as it is, so that the workability is improved as compared with the structure requiring the operation of opening the opening / closing part separately.

From this, the heat insulating container 100C of the present embodiment is a front heat insulating panel 150C that can be opened and closed by opening both the second opening / closing section 183 and the first opening / closing section 157 when the luggage or the heat storage material is first taken in and out. It is possible to form a wide opening from the upper end of the plate portion 163 to the upper end position 200 of the front heat insulating panel 150C in the height direction of the plate portion 163. Therefore, the workability of putting in and taking out articles is good. Furthermore, when the heat insulating container 100C after storing the luggage is temporarily stored in a space where the upper stage of the cold storage or the like is narrow before transportation, and additional luggage and heat storage material are taken in and out later, the structure of the upper stage can be used. Since the door can be opened and closed at a low height without hitting the door, the vacuum heat insulating material inside the door can be prevented from being damaged.

Specifically, by first opening only the second opening / closing portion 183 and then opening the first opening / closing portion 157, it is easy to avoid the collision of the door portion with the upper structure. Further, the same effect can be obtained when the heat insulating container 100C is loaded on a box-shaped cargo truck so that the door portion faces the side surface of the truck, and the side door of the truck is opened at the delivery destination to take out the load.

(C) Left, right and back heat insulating panels The left heat insulating panel 130C, the right heat insulating panel 120C and the back heat insulating panel 140C are heat insulating panels having no door portion, and are the same as the front heat insulating panel 150C, as shown in FIG. 3 (b). An inner heat insulating panel having a similar structure and an outer heat insulating panel which is a hard protective material are arranged on the outside thereof, and the outer peripheral portion of the outer heat insulating panel is reinforced by a frame portion and a support portion. However, the left side heat insulating panel 130C, the right side heat insulating panel 120C, or the back side heat insulating panel 140C may be provided with a door portion. FIG. 11 is a plan view of the heat insulating container 100C and an enlarged cross-sectional view of adjacent portions of the heat insulating panels at the corners. FIG. 11A shows a plan view seen from the + Z direction when the top heat insulating panel 170C of the heat insulating container 100C is removed, and FIG. 11B shows the back heat insulating panel 140C of FIG. 11A. An enlarged cross-sectional view of the F portion near the adjacent portion of the left heat insulating panel 130C when cut in a plane perpendicular to the Z direction is shown.

As shown in FIG. 11A, the four heat insulating panels constituting the side heat insulating panel are in contact with the panel surface of the inner heat insulating panel 140A of the rear heat insulating panel 140C and the end face of the inner heat insulating panel 130A of the left side heat insulating panel 130C. .. Further, the right side heat insulating panel 120C and the back side heat insulating panel 140C, the front side heat insulating panel 150C and the right side heat insulating panel 120C, and the left side heat insulating panel 130C and the front side heat insulating panel 150C have the same contact relationship. With such an arrangement, each panel constituting the side heat insulating panel can have the same dimensions, arrangement, and structure of the outer heat insulating panel and the inner heat insulating panel if the opening / closing part is not provided. It is possible to standardize panel parts. As a result, the stock of spare parts such as the outer and inner heat insulating panels, vacuum heat insulating materials, and vacuum heat insulating members can be reduced, and parts replacement and repair work can be facilitated. Further, in the assembly work, for example, even if the left side heat insulating panel 130C, the back side heat insulating panel 140C, and the right side heat insulating panel 120C are interchanged with each other, they can be assembled without any problem, and there is no functional problem, and workability and convenience are achieved. It is possible to improve the sex.

The structure of the adjacent portion between the back heat insulating panel 140C and the left side heat insulating panel 130C will be described with reference to FIG. 11 (b). In the left heat insulating panel 130C, a vacuum heat insulating member 330 composed of a heat insulating sheet 333, a foam heat insulating material 332, and a vacuum heat insulating material 331 is arranged from the + Y direction side to the −Y direction side. On the-Y direction side, there is a protective material 322 sandwiching the adhesive 334, and the adhesive 334 adheres and fixes the vacuum heat insulating member 330 and the protective material 322. A partial support portion 310a, which is a constituent member of the support portion 310, is fitted and fixed to the tip of the protective material 322 in the −X direction with a groove portion 310c interposed therebetween. The protective material 322 and the partial support portion 310a are constituent members of the outer heat insulating panel 130B. The vacuum heat insulating material 331 is unevenly arranged on the outside of the inner heat insulating panel 130A, that is, on the protective material 322 side, and there is a risk that the luggage will hit the heat insulating panel and the vacuum heat insulating material will be damaged by loading and unloading the luggage in and out of the heat insulating container 100B. The sex is reduced.

Further, in the adjacent back heat insulating panel 140C, a vacuum heat insulating member 330 composed of a heat insulating sheet 333, a foam heat insulating material 332, and a vacuum heat insulating material 331 is arranged from the + X direction side to the −X direction side. There is a protective material 322 sandwiching the adhesive 334 on the −X direction side, and the adhesive 334 adheres and fixes the vacuum heat insulating member 330 and the protective material 322. The internal structure of the vacuum heat insulating member 330 of the rear heat insulating panel 140C is the same as that of the vacuum heat insulating member 330 of the left heat insulating panel 130C described above. A partial support portion 310b, which is a constituent member of the support portion 310, is fitted and fixed to the tip of the protective material 322 in the −Y direction with a groove portion 310c interposed therebetween. The protective material 322 and the partial support portion 310a are constituent members of the outer heat insulating panel 140B. The partial support portion 310b and the above-mentioned partial support portion 310a have a through hole formed in a part thereof and are connected by a screw coupling portion 341.

In FIG. 11B, the end surface 330a of the vacuum heat insulating member 330, which is the end surface of the inner heat insulating panel 130A of the left heat insulating panel 130C on the −X direction side, is the inner panel surface of the inner heat insulating panel 140A of the rear heat insulating panel 140C. It is in contact with the panel surface 330b of the vacuum heat insulating member 330, and maintains the heat insulating property of the heat insulating space surrounded by the vacuum heat insulating member 330. Further, the partial support portion 310a of the left surface heat insulating panel 130C and the partial support portion 310b of the rear heat insulating panel 140C are in contact with each other to form an integrated support portion 310, and the support portion 310 is the panel surface of the bottom heat insulating panel 190C. It extends continuously from the end of the bottom heat insulating panel 190C side to the end of the top heat insulating panel 170C in the direction perpendicular to the top. Since the two partial support portions 310a and 310b are connected at a plurality of locations along the vertical direction by the screw coupling portion 341, the left surface heat insulating panel 130C and the rear heat insulating panel 140C are fixed without being displaced from each other. And the required rigidity can be obtained.

The adjacency between the left insulation panel 130C and the back insulation panel 140C also applies to the adjacency between the back insulation panel 140C and the right insulation panel 120C, the right insulation panel 120C and the front insulation panel 150C, and the front insulation panel 150C and the left insulation panel 130C. ..

Various materials such as metal materials, organic polymer materials, ceramics, and carbon fibers, and composite materials thereof can be applied to the support portion 310. As long as it is a metal material, for example, iron, stainless steel, aluminum, aluminum alloy, copper, brass, zinc and the like can be used. As the organic polymer material, for example, acrylonitrile-butadiene-styrene (ABS), polycarbonate, fiber reinforced plastic (FRP) and the like can be used.

The protective material 322, which is a component of the outer heat insulating panel, protects the vacuum heat insulating material 331 of the inner heat insulating panel, and the support portion 310 and the frame portion 320 are arranged at the ends thereof to serve as a surface of the outer heat insulating panel as a whole. It can be made rigid. The protective material 322 may be made of a material having a low thermal conductivity in order to enhance the heat insulating property. For example, organic polymer materials such as plywood, foam material, resin plate, embossed resin sheet, and paperboard, and ceramic members can be used. As a lightweight and relatively rigid material, plastic cardboard or cured wood can be used.

The protective material 322 is joined to the inside, that is, the vacuum heat insulating member 330 adjacent to the heat insulating space side via the adhesive 334. As the adhesive 334, any liquid or solid adhesive can be used. In order to easily attach / detach the vacuum heat insulating member, for example, a hook-and-loop fastener or double-sided tape may be used. By making it removable, for example, when it is desired to replace only the vacuum heat insulating material 331, it is not necessary to remove the entire panel from the heat insulating container 100C, and maintainability is improved.

As shown in FIGS. 10 and 11 (a), the frame portion 320 is continuous from the right end to the left end of the outer heat insulating panel at the upper and lower ends of the outer heat insulating panel of the side heat insulating panel, respectively. It is arranged so as to extend. Further, the outer heat insulating panel 170B of the top heat insulating panel 170 is arranged so as to surround the outer peripheral portion of the outer peripheral portion 170B. In the present embodiment, the material of the frame portion 320 is designed and simplified by using the same member as the support portion 310, but it does not necessarily have to be the same.

(D) Bottom heat insulating panel The bottom heat insulating panel 190C is the same as each heat insulating panel on the side surface, and is composed only of the inner heat insulating panel 190A composed of the vacuum heat insulating member including the vacuum heat insulating material having the cross section of FIG. 3 (b). Will be done. The bottom insulation panel 190C is placed on the pallet 500 as shown in FIG. However, since the bottom heat insulating panel 190C is a portion where the load of the stored luggage is directly applied, the vacuum heat insulating material may not be used in consideration of damage to the vacuum heat insulating material. Alternatively, a protective sheet such as a plastic cardboard may be laid above the bottom heat insulating panel 190C to reinforce it. Further, the outer heat insulating panel may be provided on the surface of the inner heat insulating panel 190A on the pallet 500 side.

The bottom heat insulating panel 190C has the above-mentioned front heat insulating panel 150C, back heat insulating panel 140C, left heat insulating panel 130C, and right heat insulating panel 120C connected to each other on the four side surfaces of the upper surface thereof. It has a structure that covers it. The bottom heat insulating panel 190C and each of these adjacent heat insulating panels may be engaged with each other on the outer surface side by a hook-and-loop fastener or the like.

(E) Top heat insulating panel The top heat insulating panel 170C also has an inner heat insulating panel 170A having a structure as shown in FIG. 3B and an outer heat insulating material which is a hard protective material on the outside thereof, like each heat insulating panel on the side surface. The panel 170B is arranged, and the outer peripheral portion of the outer heat insulating panel is reinforced with a frame portion on all sides. As shown in FIG. 10, the top heat insulating panel 170C has a structure that covers the upper side of each heat insulating panel on the side surface, and is about half the width in the X direction around the rotation axis along the Y direction. In addition, the front half or the back half can be opened and closed respectively. Further, the top heat insulating panel 170C itself can be easily removed by lifting it upward. When storing and transporting luggage in the heat insulating container 100C, the top heat insulating panel 170C and each heat insulating panel on the adjacent side surface are engaged with each other by a hook-and-loop fastener or the like on the outer surface side, or laterally displaced. Metal fittings or the like for regulation may be added.

(F) Assembly and disassembly of the heat insulating container body The heat insulating container 100C of the present embodiment can be disassembled and reassembled as shown in FIG. 10 in order to reduce the occupied volume when not in use. .. However, the heat insulating container does not have to be disassembled and assembled in this way, or a plurality of heat insulating panels are partially rotatably connected by hinges, hook-and-loop fasteners, etc., and can be partially disassembled and assembled. It may have a structure.

In addition, instead of the structure of the front heat insulating panel 150C of the heat insulating container 100C of the present embodiment, the structure of the front heat insulating panel 150 of the above-mentioned first and second embodiments or the modified example described later may be applied, or Of course, in addition to the structure of the front insulation panel 150C of the insulation container 100C, it is also possible to partially apply the structure of these other front insulation panels 150. On the contrary, the structure of the front heat insulating panel 150C of the heat insulating container 100C of the present embodiment is applied in place of or in addition to the structure of the front heat insulating panel 150 of another embodiment or modification. Of course it is possible.

6. Modifications Various modifications and changes are possible without limitation to the above-described embodiments, which are also within the scope of the present disclosure. Some modifications are given below.

(A) Modification example of the first embodiment (i) Modification example (1)
In the first embodiment, the second opening / closing portions 181 and 182 connected to the upper ends of the first opening / closing portions 151 and 152 of the heat insulating container 100 are each of the first opening / closing portions 151 and 152 as one plate-shaped member. Although it was possible to rotate with the upper end as a rotation axis, the second opening / closing part itself is divided into a plurality of plate-shaped members and has a plurality of rotation axes, and the second opening / closing part itself has a stepped shape. The structure may be such that the width in the vertical direction changes stepwise by sequentially tilting. FIG. 12A shows a heat insulating container 100D having a connecting structure of a plurality of plate-shaped members that can rotate around a plurality of rotation axes with respect to the heat insulating container 100 of the first embodiment. It is a figure.

By providing such a second opening / closing portion 184, 185, the heat insulating container 100D has all the characteristics of the heat insulating container 100 of the first embodiment, and further, the second opening / closing part is moved from top to bottom. It also has the feature that the width in the vertical direction can be changed step by step when opening.

Thereby, for example, when the heat insulating container 100D is loaded into a box-shaped cargo truck so that the door portion faces the side surface of the truck and the side door of the truck is opened at the delivery destination to take out the luggage, the side surface side of the truck is also used. The opening / closing position of the second opening / closing portion can be adjusted according to the position of the upper end of the opening. That is, when the upper end position of the opening on the side surface side is higher than that of other vehicle types due to the difference in the vehicle type of the truck, a part of the upper ends of the plurality of plate-shaped members of the second opening / closing portions 184 and 185. By leaving only the open state, it is possible to work without lowering the airtightness of the heat insulating container more than necessary. On the contrary, when the upper end position of the opening on the side surface side is lower than that of other vehicle models, all of the plurality of plate-shaped members of the second opening / closing portions 184 and 185 are completely opened. This makes it possible to take out luggage without degrading workability.

As such a connecting structure in which a plurality of plate-shaped members can rotate in a stepped manner, each plate-shaped member is connected by a hinge, and one end of each plate-shaped member is a flexible plastic sheet. , Film, non-woven fabric, fabric, etc. may be connected.

(Ii) Modification example (2)
Further, the entire second opening / closing portion is formed of a flexible and deformable member, so that the structure can be bent while continuously changing the width in the vertical direction. FIG. 12B is a diagram showing a heat insulating container 100E made of a flexible member so that the front and back surfaces of the second opening / closing portions 186 and 187 can be deformed into a curved surface. In this way, by adopting a structure that can be flexibly bent and opened from top to bottom, as described above, when the upper end position of the opening on the side surface side changes due to a difference in the vehicle type of the truck or the like. The opening degree of the upper end of the heat insulating container can be finely adjusted, and the luggage can be taken out while suppressing the deterioration of airtightness as much as possible.

The member of the second opening / closing portion is not particularly limited as long as it is flexible and has a certain degree of heat insulating property. For example, urethane foam, urethane rubber, silicone rubber, fluororubber, and butyl rubber are used. , Soft PVC, polypropylene, polyethylene, styrene-based or olefin-based elastomer materials, or composite materials thereof can also be used.

(Iii) Modification example (3)
FIG. 13A is a diagram showing a heat insulating container 100F having a structure in which the first opening / closing portion and the second opening / closing portion are not two symmetrical opening / closing portions but one in the left-right direction. The first opening / closing portion 158 can be opened / closed around a rotation axis along the Z direction at the right end of the front heat insulating panel 150, and is provided with a second opening / closing portion 188 rotatably connected to the upper end thereof. The difference from the first embodiment is that the first opening / closing part and the second opening / closing part are provided at two places on the left and right, respectively, but in this modification, there is only one place. By opening the first opening / closing portion 158, the door portion can be opened so that an opening including the upper end position 200 when the openable front heat insulating panel 150 is closed is formed.

Further, the second opening / closing portion 188 can be opened from top to bottom, and the first opening / closing portion 158 and the second opening / closing portion 188 can be opened and closed together. Further, by opening the second opening / closing portion from top to bottom, the upper end 210 of the door portion including the first opening / closing portion 158 and the second opening / closing portion 188 can be opened so as to be lower than the upper end position 200. In this modification, since there is only one opening / closing portion and a second opening / closing portion, the workability of opening / closing is further improved as compared with the case where there are two opening / closing portions.

(Iv) Modification example (4)
Further, in FIG. 13 (b), as compared with the heat insulating container 100F of FIG. 13 (a), the first opening / closing portion opens up and down instead of opening left and right, that is, on the front side around the rotation axis along the Y direction on the lower end side. It is a figure which shows the insulation container 100G provided with the 1st opening / closing part 159 which can be opened, and the 2nd opening / closing part 188 which is rotatably connected to the upper end thereof. Also in this case, as in the case of the heat insulating container 100F of FIG. 13A, the door part is opened so that the opening including the upper end position 200 of the front heat insulating panel 150 that can be opened and closed is formed by opening the first opening / closing part 159. Can be opened.

Further, the second opening / closing portion 188 can be opened from top to bottom, and the first opening / closing portion 159 and the second opening / closing portion 188 can be opened and closed together. Further, by opening the second opening / closing portion from top to bottom, the upper end 210 of the door portion including the first opening / closing portion 159 and the second opening / closing portion 188 can be opened so as to be lower than the upper end position 200. In this modification, there is only one opening / closing part and a second opening / closing part, and the door part has a structure that can be bent from top to bottom, and can be bent in two upper and lower stages. It is a structure in which the parts are connected to each other. Therefore, by continuing the operation of opening the upper second opening / closing part, the first opening / closing part and the second opening / closing part can all be opened / closed with one operation, and the operation of opening the opening / closing part separately is required. Compared to this, the workability of opening and closing is further improved.

(V) Modification example (5)
FIG. 14A is a diagram showing a heat insulating container 100H in which the opening / closing direction of the second opening / closing portion is opposite to that of the heat insulating container 100 of the first embodiment. The second opening / closing portions 181 and 182 of the heat insulating container 100H are rotatably connected to the upper ends of the first opening / closing portions 151 and 152, which is the same as the heat insulating container 100 of the first embodiment, but the second When the opening / closing portions 181 and 182 are opened from top to bottom, they can be opened toward the inside of the heat insulating container, that is, toward the heat insulating space side of the heat insulating container 100H. As a result, when there is a load or an obstacle on the outside of the heat insulating container, particularly near the upper end, the opening / closing work of the second opening / closing portion can be easily performed. In particular, it is advantageous when the upper end position of the opening on the side surface side of the truck is not only low but also in close contact with the upper end of the heat insulating container.

(Vi) Modification example (6)
FIG. 14B shows a substantially rectangular top that extends to the end of the top heat insulating panel 170 in the + X direction and covers the upper end of the front heat insulating panel 150 with respect to the heat insulating container 100 of the first embodiment. It is a figure which shows the insulation container 100I which additionally arranged the surface flap 175. When the door portions of the front heat insulating panel 150 are closed, the top flap 175 overlaps with and covers the upper ends of the door portions. Further, when the second opening / closing portions 181 and 182 or the first opening / closing portions 151 and 152 are opened, the top flap 175 can be retracted upward.

The top flap 175 is rotatable around a rotation axis along the Y direction through the + X direction end of the top insulation panel 170. The top flap 175 may be made of any material, but may be a flexible plastic sheet, film, non-woven fabric, cloth, or the like, and is preferably lightweight with some flexibility and heat insulating properties. .. Further, the top flap 175 may be provided with a hook-and-loop fastener on the surface in contact with the front heat insulating panel 150 so that it can be detachably engaged.

In this way, by providing the top flap 175 having a substantially rectangular shape extending from the end of the top heat insulating panel 170 and covering the upper end of the front heat insulating panel 150, for example, the side door of the truck can be provided at the delivery destination. When opening and taking out the luggage, it is possible to suppress a decrease in the airtightness of the heat insulating container 100I. That is, when the first opening / closing portions 151 and 152 are opened and the luggage is taken out with the second opening / closing portions 181 and 182 open, the first opening / closing portion when closed from the upper end position 200 of the front heat insulating panel 150. The section corresponding to the width in the height direction of the second opening / closing portion 182 up to the upper end 210 of the 152 is always in an open state, and the airtightness of the heat insulating container 100I may decrease. If the top flap 175 is lowered during this work, the opening region near the upper end position 200 can be effectively closed, and the decrease in airtightness can be minimized. In particular, when the heat storage material is attached near the upper end of the heat insulating container to cool the cargo inside, the cold air descends from the top to the bottom, so that the effect of closing the opening near the upper end position is great.

(B) Modification example of the second embodiment (i) Modification example (7)
Next, a modified example of the second embodiment will be described. FIG. 15A shows an opening / closing portion that can be opened and closed independently of the two doors symmetrically arranged on the front heat insulating panel 150 from the + X direction side end of the top heat insulating panel 170. It is a figure which shows the insulation container 100J extended and provided. In FIG. 15A, the front heat insulating panel 150 is an auxiliary that can be opened and closed with respect to a pair of left and right independent opening / closing portions 153 and 154 that can be opened and closed in the left-right direction and an adjacent portion arranged below them and adjacent to the pallet 500. It is composed of an opening / closing unit 162.

Further, + X of the top heat insulating panel 170 that forms substantially the same surface as the outer panel surface of the front heat insulating panel 150 when all the doors of the heat insulating container 100J are closed above the independent opening / closing portions 153 and 154. The first top surface opening / closing portion 171 is arranged in the direction side end region. The portion of the top heat insulating panel 170 excluding the first top opening / closing portion 171 is a portion that covers the entire upper surface of the heat insulating container 100J, and this is referred to as the second top opening / closing portion 172. The first top surface opening / closing part 171 and the second top surface opening / closing part 172 are detachably connected by a hook-and-loop fastener (not shown), but the present invention is not limited to this, and the first top surface opening / closing part 171 and the second top surface opening / closing part 172 are connected by other methods such as fasteners, buttons, and hinges. The outermost surfaces of both opening / closing portions may be connected to each other by a flexible plastic sheet, a film, a non-woven fabric, a cloth, or the like.

The first top surface opening / closing portion 171 can be opened / closed around the rotation axis along the Y direction through the end portion of the second top surface opening / closing portion 172 on the + X direction side, and when closed, with the outer surface of the front heat insulating panel 150. Form substantially the same plane. When opened, it rotates in the + Z direction. The independent opening / closing portion 153 on the lower left side can be opened / closed around the rotation axis along the Z direction of the portion adjacent to the left surface insulating panel 130, and the independent opening / closing portion 154 on the right side is the Z adjacent portion adjacent to the right surface insulating panel 120. It can be opened and closed around the axis of rotation along the direction.

When opening only the lower left and right open / close independent opening / closing portions 153 and 154, the upper end position 200 of the openable / closable vacuum heat insulating panel, which is the height of the lower end of the top heat insulating panel 170 inside the heat insulating container 100J. The height of the upper end 210 of the open independent opening / closing portions 153 and 154 with respect to the height is lower by the width of the first top surface opening / closing portion 171 in the Z direction. In this case, the vacuum heat insulating panel that can be opened and closed includes both the front heat insulating panel 150 including the independent opening / closing portions 153 and 154 and the top heat insulating panel 170 including the first top opening / closing portion 171 arranged above the front heat insulating panel 150. Refers to what is included.

Further, when the upper first top surface opening / closing portion 171 is also opened, a wide area including the upper end position 200 of the openable / closable vacuum heat insulating panel, which is the lower end of the top surface heat insulating panel 170, is opened inside the heat insulating container 100J. As a part, the workability of putting in and taking out luggage is improved. Therefore, even in this modification, the opening can be secured to a high position when the first load is taken in and out. Further, when the upper first top opening / closing portion 171 is closed and only the independent opening / closing portions 153 and 154 are opened, the width of the first top opening / closing portion 171 is lower than the upper end position 200 in the height direction. It is also possible to form an opening having the position of the upper end.

The heat insulating container 100J has the same effect as the heat insulating container 100A of the second embodiment, but is further provided with a first top surface opening / closing portion 171 which is an end portion of the top surface heat insulating panel 170 in the + X direction near the upper end. For example, when the independent opening / closing portions 153 and 154 are opened and the luggage is taken out, the risk that the upper opening / closing portion is accidentally opened together and the airtightness of the heat insulating container is lowered can be reduced. That is, since the force in the closing direction is constantly applied to the first top surface opening / closing portion 171 due to the weight of the opening / closing portion, even if the lower opening / closing portion is opened or the load is taken out by mistake, the first top opening / closing portion is lifted upward. Unless a force is applied, the opening / closing part does not remain open, and it is unlikely that the airtightness of the heat insulating container is inadvertently lowered.

(Ii) Modification example (8)
Further, in FIG. 15B, as in FIG. 15A, an opening / closing portion independently openable / closable is provided on the top surface above the two opening / closing portions symmetrically arranged on the front heat insulating panel 150. It is a figure which shows the insulation container 100K extended from the position of about half of the width of the insulation panel 170 in the X direction. The opening / closing portion can be rotated to open / close around a rotation axis along the Y direction at a position approximately half the width of the top surface portion of the heat insulating container 100K in the X direction. The front side is the first top surface opening / closing part 173, and the back side is the second top surface opening / closing part 174. The second top surface opening / closing portion 174 can also be rotated to open / close with respect to the first top surface opening / closing portion 173.

The difference between the heat insulating container 100K and the heat insulating container 100J is that the opening / closing portion above the front heat insulating panel 150 whose outer surface is substantially the same plane has the end of the top heat insulating panel 170 in the + X direction as the axis of rotation. Instead, it opens and closes around the axis of rotation along the Y direction, passing through the substantially central portion of the width in the X direction. The first top surface opening / closing portion 173 has a substantially L-shaped cross section cut along a plane perpendicular to the Y direction.

When the first top surface opening / closing portion 173 is closed, it forms substantially the same plane as the outer surface of the front heat insulating panel 150. When opened, it rotates in the + Z direction with the rotation axis along the Y direction passing through the position of approximately half the width of the top surface portion of the heat insulating container 100K in the X direction as a fulcrum. When only the lower left and right independent opening / closing portions 153 and 154 are opened, it is the height of the lower end of the top surface insulating panel 170 inside the heat insulating container 100K when the first top surface opening / closing portion 173 is closed. The height of the upper end 210 of the open independent opening / closing portions 153 and 154 with respect to the height of the upper end position 200 of the vacuum insulating panel that can be opened / closed is lower by the width in the Z direction of the first top surface opening / closing portion 173. .. In this case as well, the vacuum heat insulating panel that can be opened and closed is both the front heat insulating panel 150 including the independent opening / closing portions 153 and 154 and the top heat insulating panel 170 including the first top opening / closing portion 171 arranged above the front heat insulating panel 150. Refers to those including.

Further, when the upper first top surface opening / closing portion 173 is also opened, a wide area including the upper end position 200 becomes an opening, and the workability of loading and unloading luggage is further improved. Therefore, even in the heat insulating container 100K, the opening can be secured to a high position when the first cargo is taken in and out. Further, when the upper first top opening / closing portion 173 is closed and only the independent opening / closing portions 153 and 154 are opened, the width of the first top opening / closing portion 173 is lower than the upper end position 200 in the height direction. It is also possible to form an opening having the position of the upper end.

The heat insulating container 100K has the same effect as the heat insulating container 100J, but when all the doors are opened, the opening widens to nearly half of the front side of the top surface, greatly improving the workability of the first loading and unloading. Can be improved. Further, even if the first top surface opening / closing part 173 is accidentally touched when opening the lower opening / closing part or taking out the luggage, the opening / closing part does not act even more than the heat insulating container 100J. Since it closes, the risk of inadvertently lowering the airtightness of the heat insulating container can be greatly reduced.

100, 100A, 100B, 100C, 100D, 100E, 100F, 100G, 100H, 100I, 100J, 100K Insulation container 101 Bundling tool 102 Hinge 103 Handle 120, 120C Right heat insulation panel 120A Inner insulation panel 120B Outer insulation panel 130, 130C Left side Insulation panel 130A Inner insulation panel 130B Outer insulation panel 140, 140C Back insulation panel 140A Inner insulation panel 140B Outer insulation panel 150, 150C Front insulation panel 151, 152, 157, 158, 159 First opening / closing part 153, 154, 155, 156 Independent opening / closing part 160 3rd opening / closing part 161 4th opening / closing part 162 Auxiliary opening / closing part 163 Plate part 170, 170C Top surface heat insulating panel 170A Inner heat insulating panel 170B Outer heat insulating panel 171, 173 1st top opening / closing part 172, 174 2nd heaven Surface opening / closing part 175 Top surface flaps 181, 182, 183, 184, 185, 186, 187, 188 Second opening / closing part 190, 190C Bottom heat insulating panel 190A Inner heat insulating panel 200 Upper end position 210 Door upper end 310 Support part 310a, 310b part Support part 310c Groove part 320 Frame part 322 Protective material 330 Vacuum heat insulating member 330a End face of vacuum heat insulating member 330b Panel surface of vacuum heat insulating member 330 331 Vacuum heat insulating material 331a Core material 331b Exterior material 332 Foam heat insulating material 333 Heat insulating sheet 334 Adhesive 338 Protective base material 341 Screw coupling part 401 Heat storage material storage part 500 Pallet 501 Claw hole

Claims (5)

It is a heat insulating container that uses vacuum heat insulating material.
The heat insulating container is provided on the side surface side of the heat insulating container and has a vacuum heat insulating panel that can be opened and closed and a vacuum heat insulating material is used.
The openable and closable vacuum insulation panel can be opened so that when the openable and closable vacuum insulation panel is closed, an opening including an upper end position where the upper end of the openable and closable vacuum insulation panel is located is formed. , And with a door,
The door portion can be opened so that the upper end of the door portion is lower than the upper end position and an opening including the upper end position is formed.
The door portion includes a first opening / closing portion and a second opening / closing portion arranged above the first opening / closing portion.
The first opening / closing part and the second opening / closing part can be opened / closed so that the directions of the rotation axes when opening / closing each are different from each other .
Insulation container with vacuum heat insulating material. The second opening / closing portion is connected to the first opening / closing portion .
The heat insulating container according to claim 1 , wherein the second opening / closing portion can be opened from top to bottom, and the first opening / closing portion and the second opening / closing portion can be opened and closed together. The heat insulating container according to claim 1 or 2 , wherein the second opening / closing portion can change its width in the vertical direction when opened from top to bottom. The heat insulating container according to claim 1, wherein the door portion can be opened so that an opening is formed below the upper end position. The door portion can be opened so as to form an opening including the upper end position, and the door portion can be opened.
The door portion includes a third opening / closing portion and a fourth opening / closing portion arranged inside the third opening / closing portion and connected to the third opening / closing portion.
The fourth opening / closing part can be opened from top to bottom, left to right, or right to left.
The heat insulating container according to claim 1, wherein the third opening / closing portion and the fourth opening / closing portion can be opened and closed together.

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