JP3122643U - Folding cold box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable cold box that is inexpensive, easy to handle, has good heat insulation characteristics, and can be treated as ordinary combustible waste.
SOLUTION: Paper containing 51% or more of waste paper powder / starch, using an olefin resin as a binder, and forming into a plate having a thickness of 1.5 to 2 cm by an extrusion method using foaming with water vapor A plastic film gusset that punches out the bottom, four side surfaces, and the lid surface of the sponge so as to form a box when folded and assembled, and the assembled box can be tightly furnished. Fold the box into the bag and provide it.
[Selection] Figure 1

Description

  The present invention relates to a simple cold box that can be processed as normal waste or recycled products.

  Inexpensive simple cold storage boxes that are supplied with customers at a souvenir shop etc. and are delivered to customers are mainly made of expanded polystyrene, a type of expanded plastic, but should be incinerated after use due to environmental pollution problems. However, since the treatment is cumbersome, an alternative cold box has been demanded. In addition, the cold storage box made of expanded polystyrene is molded as a box, so even if it is an empty box, the volume does not change and the space is bulky, which is troublesome.

  Recently, we developed a paper sponge containing 51% or more of waste paper powder and starch, using an olefin resin as a binder, and foaming with water vapor. This paper sponge has a low environmental impact and has a thermal conductivity of 0. 033 W / m · K, which has the same thermal characteristics as other heat insulating materials, and has the flexibility that it cannot be bent even when bent, and can be handled as combustible waste similar to paper if it is a small amount.

  Since this paper sponge is made into a plate shape by an extrusion molding method, it can be easily punched into an arbitrary shape to make a box. In addition, all raw materials can be covered with recycled waste, so it is inexpensive.

  Provided is a folding cold box that is inexpensive, easy to handle, has good heat retention characteristics, and can be treated as ordinary combustible waste.

  From the above-mentioned paper sponge molded into a plate shape with a thickness of 1.5 to 2 cm by extrusion molding, each part is punched out while half-cut so that it can be folded and assembled into a box shape. A gusset bag made of plastic film that allows the assembled box to be closely attached is prepared, and the box is folded and provided in the bag.

  According to the above device, since all the materials are made by being discarded as combustible waste, there is no problem with regard to the treatment after use, and the thermal properties of the paper sponge as a heat insulator are equivalent to those of a normal heat insulator, Since it can be folded flat before it is assembled as a box, it is not bulky and is easy to store when not in use.

  A heat insulating plate containing 51% or more of waste paper powder and starch made by the extrusion molding method and using an olefin resin as a binder is used, and each part is punched and prepared so that a box can be formed when assembled.

  Considering the ease of assembly, the six sides of the box are not disjoint, but the box is connected in an unfolded form, and it is convenient that the folded part is half-cut, but when folded, it can be made the most compact The front side, bottom, rear side and lid are connected in a vertical line, the cut part is half-cut, the half-cut part connecting the bottom and rear side is folded in half, and the right side is punched separately. The method of layering the left side and side is the least bulky.

  Folded as a box at the time of use, the box is provided in a folded form in a plastic film gusset bag that is sized and shaped so that the box can be closely furnished.

  An example of the cool box of the present invention will be described with reference to the drawings. FIG. 1 shows a cool box having an outer dimension, a length of 20 cm, a width of 25 cm, and a height of 15 cm. The lid portion 1, the front side surface portion 2, and the left side surface portion 3 are visible. Further, in order to easily maintain the shape of the box, a fitting portion 4 including a protrusion and a concave portion is provided where appropriate in contact with the ridge of the box.

  FIG. 2 shows the box developed and divided into three parts. The lid portion 1, the rear side surface portion 5, the bottom portion 6, and the front side surface portion 2 are connected in a vertical row, and the joint portions 7, 8, and 9 corresponding to the ridgelines of the box are half-cut. The left side surface portion 3 and the right side surface portion 10 have the same shape and are independent. Further, the lid portion 1 and the bottom portion 6 are provided with a concave portion 11 at a portion corresponding to the fitting portion 4, and the front side surface portion 2 and the left and right side surface portions 3 and 10 are provided with protrusions 12.

  FIG. 3 shows a state where four pieces of the lid portion 1, the rear side surface portion 5, the bottom portion 6, and the front side surface portion 2 are bent at the joint portion 8, and the left and right side surface portions 3 and 10 are arranged side by side. Place it in a gusset bag.

  FIG. 4 shows a state in which the assembled box is closely fitted inside the gusset bag 13, the object is put in the box, the lid is closed, and the tongues 14 on the four sides of the gusset bag are folded over. It is better to stop with a seal.

  In addition, a part of the rear side surface of the box and a part of the inside of the gusset bag are bonded in advance with an adhesive or heat-sealing so that the box is in a predetermined positional relationship in which the box is closely attached to the gusset bag. If it is folded and stored in the gusset bag, the box can be easily assembled in the gusset bag.

  As described above, according to the foldable cool box of the present invention, when not in use, it can be stored in a folded state, so that it does not take up space and is easily assembled when used. In addition, the cold insulation effect is the same as existing cold storage boxes and can be handled as combustible waste when discarded after use, so demand from souvenir shops and retail stores can be expected.

Cooling box perspective view Developed cold storage box The perspective view which shows the state which folded the cool box The perspective view which shows the state which put the cool box in the gusset bag

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover part 2 Front side part 3 Left side part 4 Fitting part 5 Rear side part 6 Bottom part 7, 8, 9 Joining part 10 Right side part 11 Concave part 12 Protrusion 13 Gazette bag 14 Tongue part

Claims (3)

  Outer dimensions, length 15-25 cm, width 25-30 cm, height 15-15, made of a paper sponge made of paper sponge with a weight ratio of 51% or more of waste paper powder and starch. The lid, front / rear side plates, and bottom plate are connected together in a box of about 20cm, the ridgeline to be folded is half-cut, and the left and right side plates are independent, forming a box by combining them Protrusions are provided around both side plates so that they do not slip when the front and rear side plates or the lid and bottom plates of the corresponding parts are provided with recesses that fit into the projections. A foldable cold box that is easy to dispose of as waste.   2. The foldable cold insulation according to claim 1, wherein after the box is formed, the box is placed in a gusset bag made of plastic film which is closely enclosed and can be recycled or disposed of. box.   Adhering part of the rear side of the box and part of the inside of the gusset bag in advance with an adhesive or heat-sealing so that the box is in a predetermined positional relationship that fits closely in the gusset bag. 3. A foldable cold box according to claim 2, wherein the folded box member is housed in the gusset bag.

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