JPS6233692Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a packaging container, and the container is made entirely of a synthetic resin foam sheet and can be assembled easily and reliably with a good appearance. It forms a window.

Conventionally, for containers made of synthetic resin sheets or composite sheets with thin synthetic resin sheets or films, if the lid itself is not transparent, the contents cannot be seen through, especially if the lid is not transparent. In the case of a container made of a resin sheet, it is difficult to check the contents from the outside, and if you want to see the contents, you have to attach and remove the lid each time, which is inconvenient.

Therefore, in this invention, we are trying to provide a packaging container that can eliminate the drawbacks and inconveniences of the above conventional products, and its composition is a foamed resin sheet or a composite of this and a non-foamed resin sheet or film. The entire body is integrally formed with a sheet made of aluminum, and circumferential side plates are connected around the bottom plate so that it can be raised freely. It is an assembly type container with an auxiliary plate for folding that is separated from the side plate, and the auxiliary plate for folding is formed thinner than the thickness of the circumferential side plate and has a tapered shape so that it is not exposed from the upper end of the container during assembly. The auxiliary plate for folding is formed into a shape, etc., and the part of the circumferential side plate where the auxiliary plate for folding is folded downward from the upper end of the circumferential side plate is formed thinly, so that the auxiliary plate for folding can be folded and fitted into the thin part. None, during assembly, the auxiliary folding plate is joined so that it cannot be seen from the top of the container, and a penetrating window is formed in the peripheral side plate, and a transparent synthetic resin sheet or It is characterized by laminated films and a transparent window formed on the peripheral side plate.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

In the embodiment shown in FIGS. 1 to 4, 1 is a synthetic resin foam sheet integrally formed with a foamed polystyrene sheet or the like to form the container of this invention, 10 is a bottom plate, 20, Reference numeral 30 indicates a folding guide recess 11, 1 having a substantially V shape or the like around the bottom plate 10.
These are circumferential side plates that are connected to each other so as to be able to rise freely via 2.

Reference numeral 40 indicates a window formed through the center of each peripheral side plate 20, 30, and reference numeral 2 indicates a non-foamed window made of transparent high-impact polystyrene or the like which is laminated on the foam sheet 1 by thermal lamination means or the like so as to cover the window 40. It is a resin sheet or film, and in the embodiment shown in FIGS. 1 to 4, it is laminated on the foam sheet 1 on the inner surface when the peripheral side plates 20 and 30 are raised to form the container A. (See Figure 4).

Next, 50 is the end portion 21, 3 of each peripheral side plate 20, 30.
This is an auxiliary folding plate in a tapered shape that is attached to one circumferential side plate 30 in a continuous manner and separated from the other circumferential side plate 20, and is designed so that it can be folded into the corner of the container. be. And the above-mentioned auxiliary folding plate 50
is thinner than the thickness of the peripheral side plates 20, 30 (approximately 1/2 thickness), and the peripheral side plates 20, 30
One of them 20 has a shape 22 where the folding auxiliary plate 50 is folded over, which is thinner than the other part (about 1/2 the thickness), and a part 22 of the circumferential side plate 20.
The auxiliary folding plate 50 is folded over, and the auxiliary folding plate 50 is not visible from the upper end of the container during assembly (from the intermediate state shown in Fig. 2 to the completed state shown in Fig. 3).
The container A can be assembled without bulk at the corners, and the joints at the folded parts are
This can be carried out by freely selecting means such as adhesion or heat fusion.

Folding guide recesses 11 and 12 for assembling and forming the container A described above, an auxiliary folding plate 50 formed thinner than other parts, and a part 22 formed thinner than other parts of the circumferential side plate 20 on which these are folded. , I didn't go into detail, but auxiliary board 5
Regarding the formation of guide parts etc. for folding 0,
It is formed through one or several molding steps during a hot pressing process on a flat foamed sheet of the required thickness.

In addition, the foam sheet 1 may be given a printed pattern,
It is also possible to print a printed pattern on a transparent non-foamed resin sheet or film 2 to the extent that it does not obstruct the view through the window 40.

Further, in the embodiment shown in FIG. 5, a foam sheet 1a having a non-foamed resin film 1b laminated on the outer surface is used as the foam sheet 1,
A transparent non-foamed resin sheet 2 covering the foamed sheet 1 is further laminated from the outer surface side of the foamed sheet 1. If the non-foamed resin film 1b is decorated with colors, patterns, etc., the transparent non-foamed resin sheet 2
The transparent sheet 2 allows the colors, patterns, etc. to be reflected on the outside, making it beautiful, and the transparent sheet 2 protects the colors, patterns, etc. from peeling off and staining during use, making it highly durable. suitable.

Note that the transparent non-foamed resin sheet 2 covering the window 40
When laminating on either the inside or outside of the foam sheet 1, it is preferable to use a method such as thermal lamination, and the manufacturing process is as follows:
It is preferable to form the transparent sheet 2 through the transparent sheet 2, and then to perform a hot pressing process and trimming process to form the folding guide portions 11, 12, etc., since this is easy to manufacture.

As for the shape of the container A, in addition to the rectangular box-like shape as in the above embodiment, it can also be implemented by having a part or all of the peripheral side plates 20, 30 raised up in an inclined manner as shown in FIG. In particular, in the case of a boat-shaped container A as shown in FIG. 6, the appearance is good. Moreover, the container A can be formed into any polygonal shape such as a triangle or a hexagon (see FIG. 7).

Furthermore, a protrusion 13 for partitioning is formed protrudingly on the top surface of the bottom plate 10 of the container A, reinforcing ribs and patterned uneven parts 23, 33 are formed protrudingly on the circumferential side plates 20, 30, and the bottom plate 10 is It is also possible to form protruding legs 14 on the back surface to prevent horizontal displacement when containers are stacked (see Fig. 8), or to make a part or the whole of the bottom plate 10 with a raised bottom by sheet molding, or to reverse the case. The shape of the container A can be modified in various ways (not shown), such as by making the entire bottom plate 10 protrude downward to serve as a fitting part when stacking containers.

Next, as for the shape of the auxiliary folding plate, in addition to the above-mentioned tapered shape, triangular or semicircular shapes can also be used.

Note that as the foamed resin sheet 1 forming the container of this invention, a foamed polystyrene sheet is preferable in terms of moldability, cost, etc., but other known foamed sheets may be used, and foamed sheets may also be used. Non-foamed resin sheet or film to be laminated 1
As b, resins such as polystyrene, high-impact polystyrene, and polyethylene can be used.Furthermore, as the transparent synthetic resin sheet or film 2, in addition to high-impact polystyrene with excellent transparency and strength, resins similar to those mentioned above can be used. Various transparent sheets or films can be used.

Although not shown, the container A of this invention can be freely covered with a suitable lid.

According to this device constructed as described above, the inside of the container A can be seen through the window 40 through the transparent synthetic resin sheet or film 2 even when the lid is closed or the containers are stacked on top of each other. This is very convenient, and the transparent synthetic resin sheet or film 2 can prevent dust from entering through the window 40.

Moreover, in the container A of this invention, the synthetic resin sheet or film 2 covering the window 40 is laminated on the foam sheet 1 in which the peripheral side members 20, 30 and the bottom plate 10 are connected in advance and formed through the window 40. Not only does this eliminate the risk of peeling, but it also allows the folding auxiliary plate to be formed in a shape that does not expose it to the upper end of the circumferential plate, and only the part of the circumferential plate that corresponds to these shapes is made thinner. As a result, the auxiliary folding plate fits into a part of the circumferential plate, and the auxiliary plate is hidden from view from the top of the container, resulting in a good-looking finished product. At the same time, the peripheral side material 20 of the foam sheet on which the transparent sheet or film 2 is laminated is raised from the bottom plate 10, and the auxiliary plate between the ends of the peripheral side plate is folded in to assemble and join the necessary parts. By simply doing this, it is possible to easily produce a flat packaging container, and it is possible to provide a product suitable as a storage container for various foods and other items.

[Brief explanation of the drawing]

The figures illustrate the embodiment of this invention, and Fig. 1 is a developed plan view before assembly, Fig. 2 is a perspective view during assembly, Fig. 3 is a perspective view of the assembled state, and Fig. 4 is a perspective view of the assembled state.
The figure is a sectional view, FIG. 5 is a sectional view of a modified example, FIG. 6 and 7 are perspective views of different modified examples, FIG. 8 is a partially cutaway perspective view of a modified example, and FIG. 9 is a folded FIG. 1... Foam sheet, 2... Transparent sheet or film, 10... Bottom plate, 20, 30... Circumferential side plate,
40...Window, 50...Auxiliary board for folding.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. The entire body is integrally formed of a foamed resin sheet or a composite sheet of this and a non-foamed resin sheet or film, and is raised by continuous peripheral side plates around the bottom plate. A prefabricated container having no upper part and an auxiliary folding plate attached between the ends of the circumferential side plates, which is connected to one circumferential side plate and separated from the other circumferential side plate, and the above-mentioned The auxiliary plate for folding is formed to be thinner than the thickness of the circumferential side plate, and is also formed into a tapered shape so that it is not exposed from the top edge of the container during assembly, so that the auxiliary plate for folding is folded below the top edge of the circumferential side plate. The shape that is formed is thinly formed,
An auxiliary folding plate is folded over the thin part so that it can be fitted, and the auxiliary folding plate is joined without being visible from the top end of the container during assembly. A packaging container characterized in that a transparent synthetic resin sheet or film is laminated to cover the window, and a see-through window is formed in the peripheral side plate. 2. The packaging container according to claim 1 of the above-mentioned utility model registration claim, wherein a printed pattern is applied to a foamed resin sheet or a non-foamed resin sheet or film composited therewith. 3. The packaging container according to claim 1 of the above-mentioned utility model registration claim, which is made of a transparent synthetic resin sheet or film with a printed pattern. 4. The packaging container according to claim 1 of the above-mentioned utility model registration, wherein a transparent synthetic resin sheet or film covering the window is laminated from the outside of the window. 5. The packaging container according to claim 1 of the above-mentioned utility model registration, wherein a transparent synthetic resin sheet or film covering the window is laminated from the inside of the window.