JPH03256865A - Carrying container - Google Patents

Abstract

PURPOSE:To keep the reduction of an effective internal volume small, and make it possible to insulate an inner bag from the side surface also by arranging an insulating material, for which a sheet internally carrying a water absorbent plastic is soaked with water and frozen, in a gap between an outer box and the inner bag. CONSTITUTION:For a sheet S, both surfaces of a special paper 11, for which embossing process is applied and which holds a water absorbent plastic, are covered by an unwoven fabric 12 and plastic film 13. When the sheet S is bent into a random shape and frozen, an insulating material 1 with that shape is obtained. For example, in an outer box 2 of a corrugated fibreboard box on the inner surface of which, a water repellent treatment is slightly applied, the insulating material 1 with a U-shaped cross section, the size of which corresponds with the inner surface of the outer box 2, is placed, and in the outer box 2, an inner bag 3, in which water and live fish are placed and sealed, is placed, and the lids of the outer box 2 are closed. By doing this, the occupying volume of the insulating material 1 can be kept small, and a large effective internal volume can be ensured, and in addition, the inner bag 3 can be easily insulated from the side surfaces also.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a bag-in-box type transportation container in which an inner container such as a soft plastic bag is placed inside an outer box such as a cardboard box or a styrofoam box. be.

[Prior art and its problems]

For example, vehicles with aquariums or tanks are used to transport large quantities of live fish, but bag-in-boxes, which consist of an inner bag and an outer box, are used to transport small quantities of live fish from collection points to consumers. Type transport containers are often used. The inner bag for such a transport container is, for example, a bag made of soft plastic, in which live fish is placed together with water, oxygen gas is blown into the interior space to replace it with air, and the mouth of the inner bag is closed to seal it. . The inner bag is then placed in an outer box such as a cardboard box or a styrofoam box and transported. At this time, if the live fish is kept cool at an appropriate temperature to keep it calm, the oxygen intake of the live fish will be reduced, and a large amount of live fish can be transported for a long time in a small transport container. I may put it in. In addition, when transporting not only live fish but also fruits and vegetables, for example, cold insulating materials are similarly used because they can maintain freshness by keeping them cool at an appropriate temperature for a long time.

Ice is commonly used as a cold storage material for this purpose, but
If you put ice directly in it, water will flow out when it melts, so for example, block ice is put in a plastic bag and placed between the outer box and the inner bag. Here, if the ice block is small, the surface area per weight will be large and it will melt in a short time, so it is necessary to use a fairly large block of ice. Therefore, there is a problem that the effective internal volume of the transport container becomes small. Also.

In order to increase the cold retention effect, it is preferable to place ice between the side of the outer case and the inner bag to keep the inner bag cold from the side as well. It must be placed so that it is attached to the vertical side of the outside surface. However, since the plastic bag containing ice has almost no ability to retain its shape, it has been extremely difficult to keep the inner bag cold from the sides as well.

[Purpose of the invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a bag-in-box type transport container in which the effective internal volume is less reduced due to the arrangement of a cold insulating material, and the inner bag can be easily kept cold from the side.

[Structure and operation of the invention] The structure of the present invention is a transportation container in which an inner bag such as a soft plastic bag is placed inside an outer box such as a cardboard box or a styrofoam box. It is characterized by a cold insulating material made by absorbing water and freezing it on a sheet containing plastic.

In such a transport container, since the cold insulating material is made by absorbing water in a sheet containing water-absorbing plastic and freezing it, that is, the cold insulating material is plate-shaped, so the occupied volume is small and a large effective internal volume can be secured. Additionally, it can be easily placed in the gap between the side of the outer case and the inner bag.

Furthermore, by making a sheet absorb water, bending it into a predetermined shape and freezing it, a cold insulating material in that shape can be obtained. Therefore.

For example, if it is frozen in a U-shaped cross section, it can be placed so as to wrap around the inner bag, and it can be easily kept cold from the side. Furthermore, since the sheet retains water even when the ice melts, it has the advantage that even a cardboard box can be used as the outer surface if a slight water mixing treatment is applied to the inner surface.

〔Example〕

The present invention will be specifically described below based on embodiments shown in the drawings.

As shown in FIG. 1, the sheet S used as a cold insulator is a special paper 11 that is embossed and holds water-absorbing plastic, and both sides are covered with a nonwoven fabric 12 and a plastic film 1.
It is covered by 3. Both sides of the special paper 11 may be covered with the nonwoven fabric 12, but as will be described later, when the sheet S absorbs water and freezes, it is better to cover one side with the plastic film 13 so that when the sheet S is superimposed and frozen. , the sheets S can be easily separated from each other.

This sheet S has the ability to absorb up to 800 cc of water, for example, if the size is between 2001 m x 300 m, and as shown in Fig. 2 (B), a cushion-like sheet S' with a thickness of about 20 + m. become. Then, the water-absorbed sheet S' is frozen. If it is frozen in the state shown in FIG. 2(B), a plate-shaped cold insulating material L is obtained.
As shown in C), when the cross section is formed into a U-shape and frozen, a groove-shaped cold insulating material 1 is obtained. That is, by bending and freezing the material into an arbitrary shape, the cold insulating material 1 having that shape can be obtained.

The cold insulating material 1 is then placed in a bag-in-box type transport container. That is, as shown in Figure 3,
For example, a cold insulating material 1 having a U-shaped cross section and having a size corresponding to the inner surface is placed in an outer box 2, which is a cardboard box whose inner surface has been slightly mixed with water.

Further, if necessary, two plate-shaped cold insulators as shown in the figure are inserted to attach the cold insulators to the bottom and four side surfaces of the outer case 2. Then, the sealed inner bag 3 filled with water and live fish is placed in the outer box 2, and the lid of the outer box 2 is closed. As a result, the plate-shaped cold insulating material 1 is placed in the gap between the outer case 2 and the inner bag 3, and the occupied volume of the cold insulating material 1 is small and a large effective internal volume can be secured. It is also possible to keep the ice cold easily from the side 3, and a great cold keeping effect can be obtained. Even if the amount of water is the same weight, the cold insulating material 1 of the present invention has a smaller surface area and can be kept cold for a long time compared to the block ice that has been conventionally used as a cold insulating material. Further, even if the cold insulating material 1 melts and returns to the sheet S', the water is retained and the water does not flow out. Note that the contents of the inner bag 3 are not limited to live fish, but may also be fruits and vegetables. is obvious.

〔Effect of the invention〕

As explained above, in the bag-in-box type transportation container of the present invention, a cold insulating material made by absorbing water and frozen by a sheet containing water-absorbing plastic is placed in the gap between the outer case and the inner bag. There is little reduction in effective internal volume due to the arrangement, and the inner bag can be easily kept cold from the side.

[Brief explanation of drawings]

Figure 1 is a sectional view of the sheet, Figure 2 (A), (B), (C
) is an explanatory diagram of the method for producing the cold insulating material, and FIG. 3 is an explanatory diagram of the method of use.

Claims (1)

[Claims] In a transportation container in which an inner bag such as a soft plastic bag is placed inside an outer box such as a cardboard box or a styrofoam box, a sheet containing water-absorbing plastic is provided in the gap between the outer box and the inner bag. A transport container characterized in that a cold insulating material that absorbs water and freezes is placed therein.