JPH052433Y2 - - 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 has been made in view of the above points, and its purpose is to make a sheet material, which is a constituent material of an assembly box body inserted into a case body with a handle, with a foamed synthetic resin layer on one side of the paperboard layer. It is made of a laminated material with an aluminum vapor-deposited layer laminated on the other side, and this sheet material has a bulge on the foamed synthetic resin layer side of the part corresponding to the inner surface of the box including the lid plate. Therefore, a bulge is provided, and an air chamber is formed between the inner surface of the bulge and the paperboard layer, and when the sheet material is assembled into a box, the edges of the bulges that are orthogonal to each other are To provide an improved packaging container that can be tightly packed, has improved protection functions for packaged items, that is, cushioning properties, heat insulation properties, moisture resistance, load resistance, etc., and is convenient to carry. be. Another object of the present invention is to provide a packaging container that has a metallic luster and is of excellent commercial value. 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 fit together is provided, and a top folding piece is connected to the upper side of the opposite side plate piece of the other set via the hinge part, while the side plate piece of the adjacent side plate piece is It is made of a laminated material in which a foamed synthetic resin layer is laminated and bonded to one side of a paperboard layer, and an aluminum vapor-deposited layer is laminated and bonded to the other side of a sheet material in which inner folding pieces that can be folded in half are connected between the sides via a hinge part. On the bottom plate, side plate piece, cover plate piece, top folding piece, and inner folding piece of this sheet material, there are a portion of the side plate piece where the inner folding piece is folded in half and overlaps, and an inner folding piece that joins the portion. Except for one side, a bulge formed by bulging the foamed synthetic resin layer of the sheet material is provided, and adjacent bulges among these bulges have opposite green sides facing each other. This assembled box body is formed so that the materials can be brought into close contact with each other when assembled into a box shape, and air chambers are formed between the inner surface of each of the bulges and the paperboard layer. This is achieved by a packaging container that is inserted into a case body with a drop handle that is formed into a cylindrical shape corresponding to the shape of the assembled box body.

【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 a laminated material in which a foamed synthetic resin layer 1b is laminated on one side of a paperboard layer 1a by an adhesive layer 1c, and an aluminum vapor deposited layer 1d is laminated on the other side, as shown in FIGS. 2 and 4. When the foamed synthetic resin layer 1 is formed by laminating and bonding,
b and the adhesive layer 1c have a bottom plate 11 and side plate pieces 13 to 1.
6, cover plate pieces 18, 19, top folding pieces 22, 2
3. Side plate piece 1 in which the inner folding pieces 24 to 27 are folded in half and overlapped on the inner folding pieces 24 to 27
3, 15 parts 13a, 15a and the part 13a,
Except for one side portions 24a to 27a of the inner folding pieces 24 to 27 facing 15a, each part is inflated by a vacuum forming method in a state slightly spaced from the peripheral edge 1a of the sheet material 1 and each hinge part 12, 17, 21, 28. Projections 2 are provided, and air chambers 3 are formed between the inner surfaces of these projections 2 and the paperboard layer 1a. Adjacent bulges 2 of each bulge 2,
2, that is, the bulge 2 on the bottom plate 11 and each side plate piece 13
The bulges 2 on ~16, the bulges 2 on the side plate pieces 13 and 15 of one pair facing each other, the bulges 2 on the lid plate pieces 18 and 19, and the side plate pieces of the other pair facing each other 14,
The bulging portions 2 on the sheet material 1, the bulging portions 2 on the upper folding pieces 22 and 23, and the bulging portions 2 on the inner folding pieces 24 to 27 have opposite edges 2a. They are formed so that they can be brought into close contact with each other when assembled (see FIG. 4), and in particular, the bulge 2 on the bottom plate 1 is partitioned into a plurality of parts (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
A box in which the inner folding pieces 24 to 27, which are folded in half, are inscribed and overlapped with the upper folding pieces 22 and 23 in the cover plate pieces 18 and 19, respectively, and the tip sides of the cover plate pieces 18 and 19 are overlapped. can be formed. Therefore, after storing the product in the box assembly, the case body 50 is assembled as shown in FIG.
It can be inserted and stored in a package, 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. Furthermore, the aluminum vapor deposited layer 1d can also be provided on the surface side of the foamed synthetic resin layer 1b, and the side plate pieces 13, 15 and the inner folded pieces 24-27 to which the lid plate pieces 18, 19 are connected The part 13 where
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 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, etc., with a certain thickness.
A flat sheet of 0.2 to 3 mm is used as the foamed synthetic resin layer 1b, and a foamed sheet of polystyrene paver, crosslinked foamed polyethylene, foamed polyethylene, etc. is used, respectively. And adhesive layer 1b
Adhesives for use include thermoplastic resins with a melting point of 70 to 123°C, such as ethylene-vinyl acetate copolymer, low-density polyethylene, and Surlyn (registered trademark of DuPont), with a wall thickness of 3 to 100 microns. Ethylene polymer films, fucrylic resins, vinyl acetate resin emulsions, etc. are used. To vapor-deposit aluminum on the paperboard layer 1a, aluminum may be vapor-deposited directly on the surface of the paperboard, or a polyester or polyurethane anchor coating agent, such as Underlatscar RL manufactured by Toyo Ink Mfg. Co., Ltd., may be applied to the surface of the paperboard. After applying an anchor coating agent such as Adcoat AD506F (trade name) manufactured by Toyo Morton Co., Ltd. at a rate of 0.03 to 5 g/m ² , aluminum vapor deposition is performed on the anchor coating surface. The thickness of the aluminum vapor deposited layer is
0.025-0.2 micron, preferably 0.03-0.05 micron. At this time, blue is created by adding 0.3 to 5% by weight of pigments such as marine blue, malachite green, salmon pink, wine red, yellow lead, zinc, and yellow to the anchor coating agent. You can get green, pink, wine-colored, or golden metallic luster. Alternatively, a plastic film such as a polystyrene film, a polypropylene film, a polyester film, etc., on which aluminum is vapor-deposited, may be laminated onto a paperboard using an adhesive.

[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 expands over 90% of the time) to effectively protect the stored items from impact, has excellent heat resistance and has a cooling function, and the aluminum vapor-deposited layer provides moisture resistance. At the same time, the outer surface has a metallic luster, further increasing the commercial value of the packaging container. 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, 1d is an aluminum vapor deposited 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, 14, 15, 16 are side plate pieces, 17 is a hinge part, 18, 19 are cover plate pieces, 21
is the hinge part, 22 and 23 are the upper folding pieces, 24~
27 is an inner piece, 28 and 29 are hinge parts, and 50
is the case body, and 51 is the lower 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.
A sheet material in which inner folding pieces that can be folded in half are connected between the sides of adjacent side plate pieces via a hinge part is laminated and bonded with a foamed synthetic resin layer on one side of the paperboard layer and an aluminum vapor-deposited layer on the other side. The bottom plate, side plate piece, cover plate piece, top folding piece, and inner folding piece of this sheet material are formed of a laminated material, and on the bottom plate, side plate piece, cover plate piece, top folding piece, and inner folding piece, there is a part of the side plate piece where the inner folding piece is folded in half and overlaps, and the part of the side plate piece and said part. Except for one side of the inner folding piece to be joined, a bulge formed by bulging the foamed synthetic resin layer of the sheet material was provided, and adjacent bulges among these bulges faced each other. An assembly in which the edges are formed so that they are in close contact with each other when the sheet materials are assembled into a box shape, and an air chamber is formed between the inner surface of each of the bulges and the paperboard layer. A packaging container characterized in that a box body is inserted into a case body with a hanging handle formed into a cylindrical shape corresponding to the assembled product of the assembled box body.