JPH0516097Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an assembly box for packaging fruits and vegetables such as melons and other fruits and vegetables.

[Conventional technology]

For example, when selling fruits and vegetables for gifts such as melons and grapes in cold packaging, a box made of expanded polystyrene is used to separate a chamber for storing the refrigerant dry ice or cold storage agent from a chamber for storing the fruits and vegetables. A packaging box is used, which consists of a plate-shaped inner lid made of expanded polystyrene that is polymerized on the top surface of the body box, and a lid box made of art paper that has a print on its surface and can be fitted into the body box. There is. The body box and inner lid are made of synthetic resin foam to maintain cushioning and heat insulation properties, and are manufactured as so-called molded articles.

In the above-mentioned conventional packaging box, which is composed of a body box, an inner lid, and a lid box, the body box is a molded product, so it can maintain its shape well when selling the product, but when the box is empty, When transporting or storing this, it is impossible to flatten it, making it extremely inconvenient to handle, and also requiring a large space for storage.

In order to eliminate such drawbacks, the present inventor first proposed an assembly box in which articles are stored inside by folding and assembling a plurality of interconnected sheet pieces, in which the sheet pieces are It consists of a laminated interior material consisting of a flat plate or a waterproof resin sheet, (b) a corrugated cardboard core material, and (c) a molded product of a waterproof resin sheet with a protrusion for protecting the goods. We proposed an assembly box characterized by a space with airtight space formed between the boxes.
No. 86219).

This assembly box further improves cushioning and insulation properties, has a hinge part that can withstand repeated folding operations, and can be unfolded and assembled freely, keeping foods and refrigerant materials separated. It is possible to construct an assembly packaging box which has a storage part that can be set in an orderly and stable manner, and which is extremely convenient for sales at stores or home delivery as the final distribution stage.

[Problems with conventional technology]

The assembly box described in the above-mentioned Japanese Utility Model Publication No. 61-86219 takes into consideration waterproofing not only on the inside but also on the outside of the assembly box, so a foam sheet and a flexible resin film are placed on the outside of the cardboard on the inside. It is used separately from the foam sheet, and the stored items are not prevented from aging due to the ethylene generated when packaging each piece of fruit, vegetables, etc. to form an assembled box.

[Specific measures to solve the problem]

In the present invention, in the assembly box described in the above-mentioned Utility Model Application Publication No. 61-86219, the waterproof resin sheet on the outside of the cardboard is removed to improve the hinge characteristics, making it easier to bend each piece during assembly, and making the inner It is made possible to prevent the aging of fruits and vegetables by incorporating ethylene absorbers such as zeolite powder, leeches, and crushed products of calcined Oya stone into the waterproof resin sheet of the material. be.

Furthermore, this bending is more improved by using a single-sided corrugated board, in which a liner is provided on one side of the corrugated board, rather than a double-sided corrugated board, in which a liner is provided on one side of the corrugated board.

That is, the present invention is an assembly box in which an article is stored inside by folding and assembling a plurality of interconnected sheet pieces.
It consists of an adhesive laminated interior material made of a molded waterproof resin sheet containing an ethylene absorbent with a protrusion for protecting the article, and the air is sealed between the cardboard and the interior material in the protrusion. The present invention provides an assembly box for packaging fruits and vegetables, characterized in that a chamber is formed. Note that the cardboard may be either paper cardboard or plastic cardboard.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.Sheet 1 of the assembly box in FIG.
A waterproof resin sheet 3 made of a thermoplastic resin sheet with protrusions 4 provided by vacuum forming is laminated on the inside of the double-sided cardboard 2 that is the core material, and when bonded, the plate-shaped cardboard 2 and the protrusions 4 are bonded together. This is an assembly box in which a sealed air chamber 5 is formed between the two.

The waterproof resin sheet 3 contains 5 to 15% by weight of an ethylene absorbent to prevent fruits and vegetables from aging.

In FIG. 2, a single-sided corrugated board 2 is used instead of the double-sided corrugated board 2, and the bendability of the hinge 7 is improved.

When a foam resin sheet is used as the waterproof resin sheet 3, it is used as a composite sheet pre-laminated with a thermoplastic resin film for adhesion having a melting point or softening point lower than the melting point or softening point of the resin of which the foam sheet is made. Then, when vacuum forming this composite sheet, the film is melted,
The waterproof resin sheet 3 is laminated onto the cardboard 2 using the molten adhesive film layer.

When the waterproof resin sheet 3 is a non-foamed resin sheet, the ethylene absorbent may be incorporated into the waterproof resin sheet by directly kneading the ethylene absorbent powder into the resin and forming it into a sheet. However, in the case of foam sheets, when using foaming agents such as butane and heptane, the ethylene absorbent absorbs these foaming agents during foam sheet molding, reducing the ethylene adsorption capacity, so as shown in Figure 3, waterproofness It is preferable that the resin sheet 3 has a three-layer structure including a non-foamed resin film inner layer 3c containing 5 to 15% by weight of ethylene absorbent 6, a foam base sheet 3a, and an adhesive film layer 3b. However, when using thermally decomposable azodicarbonamide as a blowing agent,
The foam sheet 3a may contain an ethylene absorbent directly.

Vacuum-formed waterproof resin sheets include thermoplastic resin sheets such as polypropylene, high-density polyethylene, postyrene, high-impact polystyrene, ethylene, vinyl acetate copolymer, ethylene-methacrylic acid copolymer, low-density polyethylene, etc. A foam sheet made of resin foam, such as polystyrene paper (PSP) or foamed polypropylene sheet, is used. When a foam sheet is used as a waterproof resin sheet, the thermoplastic resin film used for adhesion to cardboard contains ethylene,
Films made of resins such as vinyl acetate copolymer, ethylene/methacrylic acid copolymer, and low density polyethylene are used.

The laminated material constructed as described above is used as a material (mount) for constructing the assembly box of the present invention shown in FIGS. 4 and 5, for example, and the assembly box shown in FIGS. can be unfolded and assembled freely by the hinge part 7' (hinge part 7 in FIG. 2), and
It can exhibit excellent cushioning and heat insulation properties. That is,
If this laminated material is trimmed so that the bottom plate 11, each side plate 12, 13, 14, 15, and the cover plate 16 can be formed using the hinge part 7' as a connecting part, the protruding parts 4' can be formed on the bottom plate 11. The packaged object 17 is placed in one of the recesses a, and the refrigerant material 18 is placed in the other recess a.
It is possible to assemble a packaging box containing each. This assembly box stabilizes the storage condition of the packaged items by the protruding part 4' and the recessed part a, effectively protects the packaged items by its heat insulation and cushioning properties, and can be immediately put on sale. In addition, since the box can be unfolded into a flat state when empty, it is very convenient to reduce the transport volume when transporting or storing the box.

[Effect of idea]

The present invention is as described above, and the insulation, rigidity, and cushioning properties are further improved by the presence of the cardboard and the protrusion forming the air chamber, and it is effective in protecting the packaged items. Moreover, the freshness of the fruits and vegetables to be packaged is maintained by the waterproof resin sheet containing an ethylene absorbent, and the durability of the hinge portion for repeated use is improved by the waterproof resin sheet.

Furthermore, when single-sided corrugated cardboard is used as the core material, it is easier to bend during assembly.

[Brief explanation of drawings]

Figures 1, 2, and 3 each show a cross-sectional view of the sheet piece of the assembled box, Figure 4 shows an exploded view of the assembled box, and Figure 5 shows the assembled box of Figure 4 with the items to be packaged. FIG. 3 is a perspective view of the container when the lid is opened. In the figure, 1 is a sheet piece of an assembly box, 2 is cardboard,
3 is a waterproof resin sheet, 4 is a protruding portion, 5 is an air chamber, and 7 is a hinge portion.

Claims (1)

[Claims for Utility Model Registration] 1. An assembly box in which a plurality of interconnected sheet pieces are folded and assembled to store articles inside, and this sheet piece has B article protection on the inside of A cardboard. The interior material is made of a molded waterproof resin sheet containing an ethylene absorbent, which forms a protrusion for the purpose of use, and is laminated with adhesive. An assembly box for packaging fruits and vegetables, characterized in that: 2. The assembly box for packaging fruits and vegetables according to claim 1, wherein the cardboard A is a single-sided cardboard. 3. The waterproof resin sheet of interior material B is characterized by being a laminate sheet of a non-foamed resin film inner layer containing an ethylene absorbent, a foam resin sheet base layer, and a hot melt adhesive resin film layer. An assembly box for packaging fruits and vegetables as set forth in claim 1 of the utility model registration claim.