JP3103332U - Insulated container - Google Patents

Abstract

An object of the present invention is to provide an insulated container that maintains a cooling effect of a frozen product or the like for a long period of time, and enables the transportation and delivery of a general transportation vehicle by mixing the frozen product with a normal temperature product.
Kind Code: A1 A box-shaped cold storage container A formed by forming a vacuum heat insulating material by depressurizing and sealing a core material having a porous structure in a jacket, and using a vacuum heat insulating material, and being foldable by a hard material. The cold storage container A is housed in the hard container B so as to be able to be taken in and out.
[Selection diagram] Fig. 1

Description

  The present invention relates to an insulated container that is used when, for example, delivering frozen or refrigerated items such as food from a storage facility to a retail store.

Frozen products such as food are taken out of a freezer refrigerator such as a merchandise center while being kept at, for example, about -20 ° C. and subdivided for each retail store, delivered in a cold storage container made of foamed resin or the like, and delivered. (For example, see Patent Document 1). The delivery of the cold storage container is mounted on a dedicated cold storage vehicle (chilled vehicle, frozen vehicle), and is sequentially transported for each retail store. In this case, dry ice and the like are stored in the cool container together with the frozen product, and the cooling effect during transportation is maintained, thereby preventing the quality of the frozen product from deteriorating.
JP 2002-337952 A

  However, many conventional cold storage containers for storing frozen products are formed in a box shape using a foamed resin such as foamed urethane foam or a product obtained by subjecting the surface of the foamed resin to a heat reflection treatment. In this type of cold storage container, the cooling time is short, and the transport time is naturally limited. For this reason, a method has been adopted in which dry ice is stored together with frozen products in a cool container to extend the cool time. However, dry ice quickly loses its cooling effect due to sublimation, and its cooling time is limited.

  Further, there is a case where the frozen product is stored in a cold storage container made of foamed resin, and the frozen product is placed on a cold storage vehicle and delivered for a long time. In this case, the temperature in the refrigerator rises when unloading each store while repeating the idling stop. Therefore, it is necessary to store an excessive amount of dry ice or cold storage material in the cold storage container. Further, for ice cream and the like, it is necessary to use a dedicated refrigerator for exclusive use, and it is not preferable to stop idling. Accordingly, the transportation fuel consumption and the shipping cost are increased, and the price of the frozen product is increased.

  The present invention provides a cold storage type container that can sufficiently maintain the cooling effect of frozen and refrigerated products for a long period of time, and can be transported and delivered together with normal temperature products to general transportation vehicles.

  A cold-insulated container according to the invention of claim 1, wherein a vacuum-insulated material is formed by depressurizing and sealing a porous core material in an envelope, and the vacuum-insulated material is foldably joined to the box-shaped insulated container. And a hard container formed by combining a hard material so as to be freely foldable, wherein the cold storage container is housed in the hard container so as to be taken in and out.

According to the first aspect, since the vacuum insulation material is formed by depressurizing and sealing the core material having the porous structure in the outer shell of the cold storage container, the function of making the gas thermal conductivity of the vacuum insulation material almost zero is exhibited. In addition, the escape of cold heat in the cool container and the intrusion of warm heat from the outside into the cool container are sufficiently blocked and suppressed. This is because of the heat insulation effect of about 10 times that of rigid urethane foam and about 20 times that of glass wool, the delivery time of frozen and refrigerated items is several times longer than the case of using rigid urethane foam containers containing dry ice. This can be extended.
In addition, since refrigerated goods and frozen goods are stored in a cool container, and furthermore, this cool container is stored in a hard container, the heat insulation is doubled, and the cooling effect is further improved together with the cool container. For this reason, it is also possible to mix and deliver the products at a room temperature transportation vehicle instead of an insulated vehicle.

  Further, according to the insulated container according to the invention of claim 2, the insulated container has a bottom plate portion that can be opened upward in the center portion, a pair of side plate portions that can be bent inward at the center portion, and an upper portion at the center portion. An opening / closing lid part capable of double opening.

  According to the second aspect, an empty cold storage container in which a frozen product or the like is not stored is bent upward at the center of the bottom plate portion, bent at the center of the pair of side plate portions, opened with the opening / closing lid portion, and folded outward. Can be folded and superimposed on each other. Thus, when not in use, the cold storage container is folded, the overall shape is reduced, and the space occupied during transportation or storage can be reduced.

  In addition, the cold storage type container according to the third aspect of the present invention is characterized in that a bottom plate portion, a side plate portion, and an inner surface of an opening / closing lid portion of the cold storage container are subjected to heat reflection processing.

  According to the third aspect, in addition to the heat insulating effect of the vacuum heat insulating material formed by depressurizing and sealing the porous core material in the outer cover, the heat insulating effect for the refrigerated goods and the frozen goods housed in the cold storage container is further improved. Can be enhanced.

  Further, in the cool insulation type container according to the invention of claim 4, a flexible heat insulating sheet is stretched from the side plate portion of the cool insulation container via the bottom plate portion to the opposite side plate portion to the lid portion. .

  The cool insulation type container according to the invention of claim 5 is characterized in that the inner surface of the heat insulating sheet is subjected to heat reflection processing.

  According to the fourth and fifth aspects, by providing the heat insulating sheet, the heat insulating has a triple structure, and the heat insulating effect on the refrigerated product and the frozen product stored in the cool container can be further enhanced.

  Further, the cold storage type container according to the invention of claim 6 is characterized in that the bottom plate portion and the opening / closing lid portion of the cold storage container are normally closed almost in a closed manner with each of the double-opened portions joined by a fastener.

  According to the sixth aspect, the open / close portion of the cold storage container keeps the close contact state when storing the refrigerated product and the frozen product, and the interior of the container is sealed despite the fact that the container can be freely assembled and folded, and the cooling effect in the container. Can be obtained sufficiently and stably.

  The insulated container according to the present invention can enhance the heat insulating effect and prolong the insulated time by using a closed insulated container using a vacuum heat insulating material. Therefore, the amount of dry ice used can be reduced to ２〜 to ３ or less as compared with the case where a conventional urethane foam cool container is used. Further, since the rigid container can be in a double-insulated state, it is not necessary to use a dedicated vehicle such as an insulated vehicle, and the transportation cost including fuel consumption can be greatly reduced. Furthermore, the distribution and storage of frozen products can be made more efficient by reducing the weight of dry ice and the size of the urethane foam container. In addition, the rigid container has strength and is convenient for loading on a transport vehicle together with a heat retaining effect.

  In the present invention, for the purpose of transporting frozen or refrigerated products while maintaining the cool state by the same transport means as normal-temperature products, a cold container equipped with vacuum heat insulating material and a hard container containing the cold container Simple and reliable realization using

  FIG. 1 is a perspective view of a cold storage container in which a cold storage container is stored in a rigid container according to the present invention, FIG. 2 is a perspective view of a cold storage container A constituting the cold storage container of the present invention, and FIG. It is a longitudinal cross-sectional view.

  As shown in FIG. 1, the cold-insulated container 1 according to the present invention forms a vacuum heat insulating material by depressurizing and sealing a core material having a porous structure in a jacket, and the vacuum heat insulating material is foldably joined. It is composed of a box-shaped cold storage container A provided with a bottom plate, a side plate, and an opening / closing lid, and a hard container B formed by combining a hard material for accommodating the cold storage container A so as to be freely taken out. The cold storage container A is housed in the hard container B and is formed so as to be substantially in close contact with each other. This cold storage container A is housed in a hard container B so as to be able to be taken in and out, as shown in FIG.

As shown in FIGS. 2 and 3, the cool container A includes a bottom plate 2, which is foldably joined, four side plates 3, 4, 5, 6, and an opening / closing lid 7.
The bottom plate portion 2 is formed of two portions of opening and closing portions 2a and 2b which can be raised upward so as to be able to open double. A cover 8 is connected to the opening / closing section 2b. Therefore, when the opening / closing portions 2a and 2b are closed, the cover piece 8 covers the upper portion of the opening / closing portion 2a over a certain width. A hook-and-loop fastener 9 is provided on the cover piece 8 and the opening / closing part 2a of the covering part to join and hold the other to each other. At the lower ends of the side plates 3 to 6, four peripheral edges of a wooden, cloth, or plastic elastic sheet 10 that supports the lower surfaces of the opening / closing portions 2a, 2b are fixed. Thereby, it is possible to prevent the bottom plate portion 2 that can be opened double from hanging downward due to the weight of the frozen product and opening. Further, when the cold storage container A is folded, the elastic sheet is flexibly deformed, so that the double-sided opening operation of the bottom plate portion is not hindered.

  A pair of side plate portions 3 and 4 facing each other among the side plate portions 3 to 6 are provided so as to be freely foldable so as to stand up with respect to the bottom plate portion 2. On the other hand, the other pair of side plate portions 5 and 6 opposed to each other has the lower end in close contact with the bottom plate portion 2.

  The side plates 5 and 6 are joined to the center by weaving lines 11 and 12 that can be folded in the vertical direction. The folding pieces 5a, 5b, 6a, and 6b can be folded inward of the container A, respectively, around the folding line.

  The opening / closing lid part 7 includes opening / closing parts 7a and 7b which are foldably connected to the upper sides of the side plate parts 3 and 4, respectively. These opening / closing portions 7a and 7b can be opened / closed via respective joining portions between the side plate portion 3 and the opening / closing portion 7a and between the side plate portion 4 and the opening / closing portion 7b. A cover plate portion 13 having a short width equivalent to the width of the open / close portion 7b is continuously provided. The cover plate 13 is bendable via a joint with the opening / closing portion 7b.

  At both ends of the inner surfaces of the opening / closing portions 7a and 7b and the cover plate 13, fixed surface fasteners 14, 15, and 16 are provided. Further, hook-and-loop fasteners 17 having a fixed width are provided at both ends of the outer surface of the opening / closing portion 7a. Further, an edge piece 18 formed of cloth or the like is connected to the upper edges of the side plates 5, 6 so as to be foldable to a fixed width (substantially the same width as the hook-and-loop fasteners 14 to 16). A hook-and-loop fastener 19 is provided on the edge piece 18.

  Therefore, when the opening / closing portions 7a and 7b are bent so as to close the upper opening of the cool container A surrounded by the side plates 3 to 6, the hook-and-loop fasteners 14 and 15 are joined to the hook-and-loop fastener 19. Also, the surface fastener 16 is joined to the surface fastener 17 by overlapping the cover plate 13 on the outer surface of the opening / closing portion 7a. Thereby, the upper opening is substantially closed by the opening / closing portions 7a and 7b and the cover plate portion 13.

  Opening / closing portions 2a and 2b of the bottom plate portion 2, side plate portions 3 and 4, folding pieces 5a, 5b, 6a and 6b of side plate portions 5 and 6, opening / closing portions 7a and 7b of an opening / closing lid portion 7, and a cover plate portion. Reference numerals 13 are each made of a vacuum heat insulating material. This vacuum heat insulating material forms a bag-shaped jacket such as a plastic or a metal foil laminated film, and a porous core material s is sealed under reduced pressure (for example, a vacuum degree of 1 to 200 pa) in the jacket f. Consists of This vacuum heat insulating material exhibits excellent heat insulating performance because the contribution of gas thermal conductivity can be made almost zero.

  FIG. 4 shows a process of folding the cold storage container A from a closed state by the opening / closing portions 7a and 7b and the cover plate portion 13. FIG. 4 (a) shows the closed state. To fold the closed state, first, the open / close lids 7a and 7b are opened by hand as shown in FIG. 4 (b). At this time, the fastener 16 is separated from the hook-and-loop fastener 17, and the hook-and-loop fasteners 14 and 15 are separated from the hook-and-loop fastener 19.

  Next, the opening / closing portions 2a and 2b of the bottom plate portion 2 are sufficiently raised inside the container as shown by the dotted arrows in FIG. 4 (c). At this time, the joining between the opening / closing portion 2a and the cover portion 8 is released at the fastener 9. Further, the side plates 5, 6 are folded at the folding lines 11, 12 into the container A as shown in FIG. Then, each of the folding pieces 5a, 5b and 6a, 6b bends in the shape of a "". At this time, the edge piece 18 having the hook-and-loop fastener 19 is folded back toward the inner side of the side plates 5 and 6.

  Then, as shown in FIG. 4E, the side plates 5 and 6 are sufficiently folded, and the opening / closing portions 7a and 7b are sufficiently folded back to the outer surface or the inner surface of the side plates 2 and 4. Thereby, the side plate part 3, the opening / closing part 2a, the folding pieces 5a and 5b, the opening / closing part 2b and the side plate part 4 are folded so that the thickness becomes thinner in the same horizontal plane as a whole. At this time, the flexible sheet 10 is folded between the opening / closing portions 2a and 2b.

  The hard container B is a sealed hard container made of plastic such as vinyl chloride as shown in FIG. 1 so that the hermetically sealed insulated container A can be carried safely. The hard container B includes a bottom plate 21, side plates 22 to 25, and an opening / closing lid 26. The opening / closing lid 26 includes double-opening double-opening opening / closing portions 26a and 26b, which opens and closes the opening of the container and substantially hermetically seals the inside of the container when closed. For this reason, a structure is adopted in which the bottom plate portion 21, the side plate portions 22 to 25, the connection portion between the open / close lid portions, and the open / close portion 26 are tightly coupled. Further, one side plate portion 22 of the rigid container is rolled inward at the bent portions 22a and 22b, and the other side plate portion 24 is rolled up inside the bent portions 24a and 24b.

  The rigid container B is configured to be foldable in order to reduce the space occupied during storage or transportation. As the rigid container B of the present invention having a foldable structure, any well-known sealed container can be used. Therefore, the rigid container B can be selected from those having a reinforcing structure, size, and design corresponding to the type, weight, and shape of the frozen product or the like stored in the cool container A.

On the other hand, when using the cold storage container A and the rigid container B folded in this way, the components of the container A are opened in the reverse order of the above (a) to (d), and FIG. The state shown in FIG. Next, the upper part of the folded rigid container B is assembled.
In this state, the cool container A is stored in the hard container B. Then, the frozen product or the refrigerated product is stored in the cold storage container A, the cover plate 13 is closed together with the opening / closing portions 7a and 7b, and the inside of the container A is substantially sealed.

FIG. 5 is a longitudinal sectional view showing another embodiment of the cool container A according to the present invention.
As shown in FIG. 5, a flexible band-shaped heat insulating sheet 30 is stretched from the side plate portion 3 of the cold storage container A to the side plate portion 4 facing the bottom plate portion 2 and the lid portion 7. The width of the heat insulating sheet 30 is substantially the same as the width of the side plate 3, bottom plate 2, side plate 4, and lid 7. Further, the inner surface of the heat insulating sheet 30 is subjected to heat reflection processing.

  Since the heat insulating sheet 30 is disposed inside the cold storage container A, the heat insulating effect on the refrigerated and frozen products stored in the cold storage container A can be further enhanced.

  FIG. 6 is a longitudinal sectional view showing another embodiment of the cold storage container A according to the present invention. Here, the cool container A is conceptually shown. FIG. 6 differs from that shown in FIG. 3 in that storage pockets 31 are provided on the inner surfaces of the side plates 3, 4, 5, and 6. These storage pockets 31 store a cooling agent such as dry ice, so that the low-temperature cooling in the container and the delivery time of frozen and refrigerated items can be extended.

  The storage pocket 31 can be provided in the bottom plate 2 and the opening / closing lid 7 as needed. These storage pockets 31 are desirably formed of a soft and thin material in order to facilitate folding of the container.

  The present invention is widely used for storage, delivery, and transportation of frozen foods such as fresh foods, seafood and ice cream, which need to be kept cool for a long time, refrigerated products, and foods that are stored at room temperature for a long time. Available.

FIG. 2 is a perspective view of the cold storage container in a state in which the cold storage container is stored in the rigid container according to the present invention. FIG. 2 is a perspective view showing the cool container of the cool container according to the embodiment of the present invention. FIG. 2 is a vertical sectional view of the cold storage container shown in FIG. 1. Explanatory drawing which shows the folding procedure of the cold storage container shown in FIG. FIG. 4 is a longitudinal sectional view schematically showing a cold storage container according to another embodiment of the present invention. FIG. 4 is a longitudinal sectional view schematically showing a cold storage container according to another embodiment of the present invention.

Explanation of reference numerals

A: Insulated container,
B: rigid container,
2. Bottom plate
3, 4, 5, 6 ... side plate part,
7. Opening / closing lid
8, 14, 15, 16, 17, 19 ... hook-and-loop fastener,
10 ... flexible sheet,
30 ... insulation sheet,
f ... jacket,
s ... Core material.

Claims (6)

A box-shaped insulated container in which a vacuum heat insulating material is formed by decompressing and sealing the core material having a porous structure in the outer cover and the vacuum heat insulating material is foldably joined;
It is composed of a hard container that is formed by combining hard materials and is freely foldable,
The insulated container is characterized in that the insulated container is housed in the rigid container so as to be taken in and out.   The cold storage container, characterized in that it comprises a bottom plate part that can be opened upward in the center part, a pair of side plate parts that can be bent inward at the center part, and an openable lid part that can be opened upward in the center part. The insulated container according to claim 1.   The cold-insulated container according to claim 1, wherein the bottom plate, the side plate, and the inner surface of the opening / closing lid are heat-reflected.   The cold insulation container according to any one of claims 1 to 3, wherein a flexible heat insulating sheet is stretched from a side plate portion of the cold storage container through a bottom plate portion to a side plate portion facing the lid portion. .   The cold insulation type container according to claim 4, wherein an inner surface of the heat insulating sheet is subjected to a heat reflection treatment.   The cold-insulated container according to any one of claims 1 to 5, wherein the bottom plate portion and the opening / closing lid portion of the cold-storage container are normally closed almost in a closed manner by joining the double-opened portions with a fastener. .

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