JPH052435Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a packaging container used for selling ice cream, cake, etc.

[Conventional technology]

A side plate piece is attached to each side of the bottom plate, a cover plate piece is attached to one set of opposing side plate pieces of these side plate pieces, and a folding piece is attached to the side plate piece of the other set of opposing side plate pieces, respectively. Packaging boxes that can be assembled into a box shape by folding the sheet materials at respective hinges using continuous sheet materials are conventionally known, and the sheet materials are made of paperboard whose inner surface is coated with wax. are commonly used.

[Problem that the invention attempts to solve]

The well-known prefabricated packaging boxes mentioned above have poor insulation properties, and require the use of ice packs such as dry ice to keep the stored items at the required low temperature. There was room for improvement in terms of load capacity.

[Means to solve the problem]

The present invention was made in view of the above points, and its purpose is to form a sheet material, which is a constituent material of an assembly box that is inserted into a case body with a handle, by forming a foamed synthetic resin layer on the inner surface of a paperboard layer. It is formed from laminated materials, and this sheet material is provided with a bulge by bulging the foamed synthetic resin layer in a portion corresponding to the inner surface of the box including the lid plate. An air chamber is formed between the inner surface of the section and the paperboard layer, and when the sheet material is assembled into a box shape, the edges of the orthogonally adjacent bulges are brought into close contact with each other,
It is an object of the present invention to provide an improved packaging container that has improved protection functions for packaged items, that is, cushioning properties, heat insulation properties, load-bearing properties, etc., and is convenient to carry. Therefore, the above object of the present invention is to provide side plate pieces on each side of a rectangular bottom plate, and one set of side plate pieces facing each other among these side plate pieces has their top sides facing opposite to the upper side overlapped with each other. A cover plate piece formed to a size that can be fitted together is connected to the other side plate piece facing each other, and a top folding piece is connected to the upper side of the side plate piece of the other pair via a hinge part, while the side plate piece of the adjacent side plate piece is A sheet material in which an inner folding piece that can be folded in two is connected between the sides via a hinge part is formed of a laminated material in which a foamed synthetic resin layer is laminated and adhered to one side of a paperboard layer, and the bottom plate of this sheet material is , on the side plate pieces, the lid plate piece, the top folding piece, and the inner folding piece, except for the part of the side plate piece where the inner folding piece is folded in half and overlapping, and the one side part of the inner folding piece that joins this part, there is a sheet material. A bulging portion is formed by bulging the foamed synthetic resin layer, and adjacent bulging portions have opposite green sides when the sheet material is assembled into a box shape. The assembled box body is formed so that they can be brought into close contact with each other, and an air chamber is formed between the inner surface of each of the bulges and the paperboard layer, and corresponds to the assembled product of this assembled box body. This is accomplished by a packaging container that is inserted into a case body with a handle that is formed into a cylindrical shape.

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, to explain the assembled box body, a sheet material 1 that is a constituent material of the box body has a bottom plate 11 that is square (rectangular in the case shown) and is connected to each side of this bottom plate 11 via hinge parts 12. Each side plate piece 13
- 16, and a hinge portion 17 on the upper side of one pair of opposing side plate pieces 13, 15 of these side plate pieces.
Lid plate pieces 18 and 19 are formed in a size such that the distal ends facing each other are stacked on top of each other.
and upper side folding pieces 22 and 23 connected via a hinge part 21 to the upper sides of the other pair of side plate pieces 14 and 16 facing each other, and the adjacent side plate pieces of each of the side plate pieces Pieces 13 and 14, 14 and 15,
Between the side pieces 15 and 16, and 16 and 13, inner folding pieces 24 to 27, which can be folded in half, are attached to a hinge part 28.
are connected via. The cover plate pieces 18 and 19 are approximately trapezoidal in shape, and the upper folding pieces 22 and 23
has a substantially triangular shape, and the outline of the sheet material 1 is substantially square. In addition, 29 is the inner folding piece 2
A hinge part provided for folding 4 to 27 in half,
31 is a notch. The sheet material 1 having the above structure is formed of a laminated material in which a foamed synthetic resin layer 1b is laminated on one side of a paperboard layer 1a with an adhesive layer 1c, as shown in FIGS. 2 and 4. , a bottom plate 11 and a side plate piece 13 are provided on the foamed synthetic resin layer 1b and the adhesive layer 1c.
~16, cover plate pieces 18, 19, top folding piece 22,
23. Portions 13a and 15a of the side plate pieces 13 and 15 where the inner folding pieces 24 to 27 are folded in half and overlapped on the inner folding pieces 24 to 27, and the portion 13
Inner folding pieces 24 to 27 facing a and 15a
Sheet material 1 except for one side portions 24a to 27a of
The peripheral edge 1a and each hinge part 12, 17, 21, 2
The bulges 2 are provided by vacuum forming at a slight distance from the bulges 8, and the air chambers 3 are formed between the inner surfaces of the bulges 2 and the paperboard layer 1a. Then, the adjacent bulges 2, 2 of each bulge 2, that is, the bulge 2 on the bottom plate 11 and the bulges 2 on each of the side plate pieces 13 to 16, of one pair facing each other. The bulging portion 2 on the side plate pieces 13, 15 and the cover plate pieces 18, 19
Upper bulge 2, opposite side plate piece 1 of the other set
4, 16 and the upper folding pieces 22, 23
The upper bulge 2 and the bulges 2 on the inner folding pieces 24 to 27 are formed so that their opposing edges 2a can be brought into close contact with each other when the sheet material 1 is assembled ( (See FIG. 4), in particular, the bulge 2 on the bottom plate 1 is divided into a plurality of sections (four in the illustrated case). On the other hand, the case body 50 (see FIG. 5) into which the assembly of the assembly box configured as described above can be inserted and stored is formed into a cylindrical shape corresponding to the assembly, A lowering hand 51 is provided on the upper surface thereof. According to the packaging container configured as described above, the sheet material 1 that is a constituent material of the assembled box body has the foamed synthetic resin layer 1b side as the inner surface, and each hinge portion 1
When folded at portions 2, 17, 21, 28, and 29 and assembled into a box shape as shown in FIG. 5 from the state shown in FIG. 3, one pair of opposing side plate pieces 13, 15
The inner folding pieces 24 to 27, which are folded in half, are overlapped with the upper folding pieces 22 and 23 inscribed in the cover plate pieces 18 and 19, respectively, and the tips of the cover plate pieces 18 and 19 are overlapped. Can form a box. Therefore, after storing the product in the box assembly, the case body 50 is assembled as shown in FIG.
It can be inserted into a container, stored, packaged, and sold. In this case, the box assembly may be affixed with a seal 40 at the overlapping portion of the lid plate pieces 18 and 19. In addition, as shown in FIG. 6, the lid plate piece 18 is provided with a fitting notch 32, and the other lid plate piece 19 is provided with a tongue piece 33 that fits into the notch 32, so that a seal can be used when assembling the box. You may temporarily fasten the cover plate pieces 18 and 19 without leaving the room. Further, side plate pieces 13 and 15 to which cover plate pieces 18 and 19 are connected
and the inner folding pieces 24 to 27 join the part 13
a, 15a and one side portions 24a to 27a are paperboard layer 1
It may be formed by only a, and this makes the folding operation of this part very easy. Note that the paperboard layer 1a may be made of art paper or cardboard made from pulp, or a composite sheet made of a foam sheet as a base material and having a paperboard layer on the surface.
A flat sheet of 0.2 to 3 mm is used as the foamed synthetic resin layer 1b, such as polystyrene paper, cross-linked foamed polyethylene, or foamed polyethylene, and as the adhesive for the adhesive layer 1b, ethylene or vinyl acetate. Polymers, low-density polyethylene, thermoplastic resins with a melting point of 70 to 123°C such as Surlyn (registered trademark of Dupont), and ethylene polymer films and acrylic resins with a wall thickness of 3 to 100 microns, Vinyl acetate resin emulsion or the like is used.

[Effect of the idea]

The present invention is as described above, and it goes without saying that the assembly box body can be easily assembled by each hinge part, and the foamed synthetic resin layer of the sheet material and almost the entire area (80% or more, preferably more than 80%) of the inner wall surface of the box can be easily assembled. The air chamber, which expands over 90% of the time, effectively protects the stored items from impact, and has excellent heat insulation and cold storage functions. During assembly, the edges of the bulges that are orthogonally adjacent to each other are in close contact with each other, which improves the load-bearing capacity of the box as a whole and provides excellent shape retention. Case with Handle Since it is inserted and stored inside the body and is configured as a packaging container with a handle, the packaged items in this packaging container have a good appearance, are extremely convenient to carry, and have great practical value. is extremely large.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a developed view, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, Fig. 3 is a perspective view showing an intermediate stage during assembly operation, and Fig. 4 5 is a perspective view of the assembled state, and FIG. 6 is a developed view showing another aspect. In the figure, 1 is a sheet material, 1a is a paperboard layer, 1b is a foamed synthetic resin layer, 2 is a bulge, 2a is an edge, 3 is an air chamber, 11 is a bottom plate, 12 is a hinge part, 13, 1
4, 15, 16 are side plate pieces, 17 is a hinge part, 1
8 and 19 are cover plate pieces, 21 is a hinge part, 22 and 23
is a top folding piece, 24 to 27 are inner folding pieces, 2
8 and 29 are hinge parts, 50 is a case body, and 51 is a lowering hand.

Claims (1)

[Scope of utility model registration request] A side plate piece is attached to each side of the square bottom plate, and one set of side plate pieces facing each other has a lid formed on the upper side of the side plate pieces in a size that allows the opposing tip sides to be overlapped with each other. The plate pieces are connected to the side plate pieces of the other set of opposing side plate pieces, and the upper folded pieces are connected to the upper sides of the side plate pieces through the hinge portions, respectively.
The sheet material is made of a laminated material in which a foamed synthetic resin layer is laminated and adhered to one side of a paperboard layer, and a sheet material is formed by connecting an inner folding piece that can be folded in half between the side edges of adjacent side plate pieces via a hinge part. On the bottom plate, side plate piece, lid plate piece, top folding piece, and inner folding piece of this sheet material, there are a part of the side plate piece where the inner folding piece is folded in half and overlaps, and one side part of the inner folding piece that joins with the part. Except for the above, bulges are formed by swelling the foamed synthetic resin layer of the sheet material, and the edges of adjacent bulges of these bulges are opposite to each other, and the sheet material is folded into a box. The assembled box body is formed so that they can come into close contact with each other when assembled into shapes, and air chambers are formed between the inner surface of each of the bulges and the paperboard layer. What is claimed is: 1. A packaging container characterized by being inserted into a cylindrical case with a handle corresponding to the shape of the container.