JPH06122479A - Cold insulating container - Google Patents

Abstract

PURPOSE:To obtain a cold insulating container reduced in manufacturing and transporting costs and excellent in operational efficiency and disposal convenience. CONSTITUTION:The cold insulating container 1 is composed of a folding outer case 2 consisting of paperboard and an inner bag 3 consisting of foaming polyethylene sheet and the inner bag 3 is attached to the inner surface of the outer case 2 with the opening of the inner bag 3 at the top of the container. Since a mere unfolding of the outer case 2 causes the inner bag 3 to spread out along the inner surface of the outer case 2 with an opening at the top, the contents can be easily placed in the container. In the case of the container made of foaming polystyrene, since its production requires no metal die, the container is inexpensive to produce and it is easy to transport, since it can be folded. Upon discarding for disposal, the inner bag 3 can be peeled off the outer case 2 to sort out the waste according to the material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cool container for carrying, which is used when bringing back ice cream or the like purchased at a store.

[0002]

2. Description of the Related Art Conventionally, expanded polystyrene containers have been widely used as cold storage containers of this type. In addition, an assembly box made of corrugated cardboard or coated cardboard having a foamed polyethylene sheet laminated on the inner surface is also used.

[0003]

Among the above-mentioned conventional cool containers, those made of expanded polystyrene have excellent heat insulating properties, but require a mold to make them, so that the manufacturing cost is high and they can be folded. Since it cannot be done and it is bulky, there is a problem that the transportation cost to the store is high. Further, it is bulky even after use, and since it emits toxic gas and black smoke during incineration, it has a problem in terms of disposability. Further, the latter assembly box type cold storage container has a problem that the cold storage effect is not sufficient for the high manufacturing cost and the workability is poor.

Therefore, an object of the present invention is to provide a cold insulation container which can reduce manufacturing costs and transportation costs and is excellent in workability and disposal.

[0005]

In order to achieve the above object, the cold-insulating container of the present invention comprises a foldable outer box made of paperboard and an inner bag made of a double bag of foamed polyethylene sheet. It is characterized in that the inner bag is attached to the inner surface of the outer box with its mouth portion facing upward.

[0006]

In the cold-insulating container of the present invention described above, the outer case is opened in use when it is supplied in a folded state. With the opening operation, the inner bag spreads along the inner surface of the outer case. Is opened. Then, after the contents are put in the inner bag, the lid of the outer box is closed. By being assembled in this way, the inner bag in the outer box serves as a heat insulating function.

[0007]

FIG. 1 is a perspective view showing a cold insulation container as an embodiment of the present invention with its upper part opened. As shown in the drawing, the cold insulation container 1 is a foldable outer shape having a rectangular parallelepiped shape. It is composed of a box 2 and an inner bag 3 made of a double bag of foamed polyethylene sheet.

The outer box 2 is composed of a blank board B obtained by punching a paperboard which has been subjected to appropriate water resistance processing into the shape shown in FIG. 2, and the blank board B is composed of four side panels 11 to 1.
4 and the adhesive margin piece 15 are continuously provided in the lateral direction along the mountain fold lines a to d, and the bottom panel 16 is provided on the lower side of each of the side panels 11 to 14.
To 19 are continuously provided via mountain fold lines e to h, and upper panels 20 to 23 are provided on upper sides of the side panels 11 to 14, respectively.
Have a shape in which they are continuously arranged via the mountain fold lines i to l.

Here, the triangular bottom panels 16 and 18 are divided into two by the intersections of the mountain fold lines a and e, and the valley fold lines m and n extending from the intersections of the mountain fold lines b and g, respectively. Are connected to both sides of the bottom panel 17 in a line via mountain fold lines o and p, and two foldable protrusions 17a are provided on the lower side of the bottom panel 17, and the bottom panel corresponding to this is provided. Slit 1 at 19 mountain fold line h
Two 9a are formed.

Areas 24 and 25 to be handles are defined by notches and ruled lines on the upper panels 21 and 23, and two foldable protrusions 21a are provided on the upper side of the upper panel 21. Corresponding to the above, two slits 23a are formed in the mountain fold line 1 of the other top panel 23.

In order to attach the inner bag 3 to the blank plate B, as shown in FIG.
The inner bag 3 is attached to the inner surface so as to cover 13.
The inner bag 3 used is a double bag in which a foamed polyethylene sheet is bent at the lower side 3a and adhered at both sides 3b and a mouth portion 3c is provided at the upper portion, and the size thereof is a side panel 1 having a left-right width.
It is slightly shorter than the width obtained by adding 2, 13 and the vertical width is larger than the height of the side panels 12, 13. Then, by the hot-melt adhesive 4 applied on the inner surfaces of the side panels 12 and 13 vertically and horizontally, the lower part of the inner bag 3 occupies half of the bottom panel 17 and the upper part of the upper panel 21 is half or more as shown in the figure. Occupy and paste.

Next, as shown in FIG. 4, the side panel 14
Are folded back along the mountain fold line c, and the inner bag 3 is formed by the hot melt adhesive 4 applied in the vertical and horizontal directions on the inner surface of the side panel 14.
The inner surface of the side panel 14 and the inner bag 3 so as to cover the right half of the
Glue. Further, as shown in FIG. 5, the side panel 11
Is folded back along the mountain fold line a, and the inner bag 3 is formed by the hot melt adhesive 4 applied vertically and laterally on the inner surface of the side panel 11.
The inner surface of the side panel 11 and the inner bag 3 so as to cover the left half of the
At the same time, the inner surface of the end portion of the side panel 11 and the outer surface of the margin side 15 are bonded together.

The cold insulation container 1 is supplied to a store or the like in the folded state shown in FIG. 5 and is opened in the state shown in FIG. 1 when used.

That is, first, the side panels 11 to 14 are raised along the mountain fold lines a to d so as to have a rectangular tube shape. In this case, since the inner bag 3 is adhered to the inner surface of each of the side panels 11 to 14, the inner bag 2 spreads along the inner surface of the outer box 2 and the mouth portion 3c of the inner bag 3 is opened. Next, after the bottom panel 19 is folded along the mountain fold line h, the bottom panels 16 and 18 are folded along the valley fold lines m and n, and the bottom panels 16 to 18 are folded along the mountain fold lines e to g. Protrusion 17a
1 is inserted into each slit 19a of the bottom panel 19 to form a bottom portion, so that the state shown in FIG. 1 is obtained.

Then, in the state shown in FIG. 1, the contents such as ice cream and the cooling agent such as dry ice are stored if necessary, and the upper portion of the inner bag 3 is appropriately folded to cover the upper panels 20 to 23. do. That is, the top panel 2
0 and 22 are sequentially folded along the mountain fold lines i and k, and then the upper panel 23 is folded along the mountain fold line 1 and then the upper panel 2
1 is bent along the mountain fold line j to raise the region 24, the region 25 of the upper panel 23 is inserted into the hole formed by the raising from below to form a handle by both regions, and each projection of the upper panel 21 is further formed. 21a is inserted into and fixed to each slit 23a of the upper panel 23 to be brought into a portable state. In the cold insulation container 1 assembled in this way, the inner bag 3 in the outer box 2 performs a heat insulating action, so that the contents can be kept in a cold state for a long time.

The cold storage container of the present invention can be used not only for cold storage as described above, but also for carrying warm items such as bento boxes and pizza.

[0017]

As described above, the cold insulation container of the present invention comprises a foldable outer box made of water-resistant paperboard,
Since it is composed of an inner bag consisting of a double bag of expanded polyethylene sheet, it does not require a mold for manufacturing unlike the conventional expanded polystyrene container, so that the manufacturing cost can be reduced and it is not bulky. Therefore, the transportation cost can be reduced.

Further, since the inner bag is attached to the inner surface of the outer box with the mouth portion facing upward, the inner bag spreads along the inner surface of the outer box and the mouth portion is simply opened. It is easy to handle because the contents can be easily stored in a state where the box is spread and can be folded after use.

Further, when it is discarded after use, the inner bag can be peeled off from the outer box and separated, which is suitable for separate collection and is excellent in discardability.

[Brief description of drawings]

FIG. 1 is a perspective view showing a cold-storage container as one embodiment of the present invention with its upper part opened.

FIG. 2 is a development view showing a blank plate forming an outer box.

FIG. 3 is a view showing a state in which an inner bag is attached to a blank plate.

FIG. 4 is a diagram for explaining a procedure for folding the blank plate from the state shown in FIG.

FIG. 5 is a view showing the cold insulation container in a folded state.

FIG. 6 is a perspective view showing the cold-storage container in an assembled state.

[Explanation of symbols]

 1 Cooling container 2 Outer box 3 Inner bag 3c Mouth

Claims (1)

[Claims] 1. A foldable outer box made of paperboard, and an inner bag made of a double bag of foamed polyethylene sheet,
A cool container characterized in that the inner bag is attached to the inner surface of the outer box with its mouth facing upward.