JPS5822909Y2 - simple container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a container suitable for selling foods such as French fries.

This invention consists of a single thermoplastic resin foam sheet, with side sheets continuous to both sides of the front sheet via folding lines, and a bottom sheet and a back sheet continuous to this on one side of the front sheet. Adhesive pieces are connected by cut grooves, adhesive pieces are connected to the side sheets via folding lines, and the adhesive pieces are stuck to both ends of the back sheet, and
A simple container characterized in that a side sheet and a bottom sheet are each folded along a fold line at the center thereof,
The main points are as follows.

The thermoplastic resin foam sheet used in the present invention is a foam sheet made of polystyrene, polyethylene, polypropylene, or a copolymer resin or mixed resin thereof, but in particular, a foam sheet made of polystyrene foam sheet or a copolymer resin mainly composed of styrene is used. Foamed sheets are most suitable because they have excellent rigidity and shape retention.

In addition, these thermoplastic resin foam sheets have an expansion ratio of 5 to 20 times, and have a foaming ratio of 0.1 to 3 mm, particularly 0.1 to 0.5
A material having a thickness of mm is preferably used.

In addition, by using a sheet in which a synthetic resin film such as polyethylene film is laminated on the surface of these thermoplastic resin foam sheets, and by making the film surface the inner surface of the container, it is possible to create a container that is stronger and more hygienic. Therefore, the use of a laminated sheet is most suitable.

To explain the present invention based on the drawings, Fig. 1 is a developed view of a simple container of the present invention, which is formed from a thermoplastic resin foam sheet such as a polystyrene foam sheet, and 1 is the front side. A side sheet 3 is connected to both sides of the front sheet 1 via a folding line 2, and an adhesive piece 5 is attached to the side sheet 3 via a folding line 4.

A bottom sheet 6 is connected to one side of the front sheet 1 by an interrupted groove 7, and a back sheet 9 is connected to an interrupted groove 8 provided symmetrically to the interrupted groove 7.

The surface surrounded by the interrupted grooves 7 and 8 is the bottom sheet 6, and the interrupted grooves 7 and 8 are enlarged at the center of the bottom sheet 6 and formed into an arc shape.

Both ends of the front sheet 1, ie, the folding line 2 and both ends of the back sheet 9, are tapered to widen at the same angle from the end of the bottom sheet 6.

Further, the side sheet 3 is provided with a folding line 11 in the center parallel to the folding lines 2 and 4, so that the side sheet 3 has a folding line 11 parallel to the folding lines 2 and 4.
It is divided into two parts at 1.32.

Similarly, the bottom sheet 6 is divided into two by a fold line 12 at the center of the interrupted grooves 7 and 8 into bottom sheets 61 and 62.

The front sheet 1 and the back sheet 9 are overlapped by folding along the fold line 12 of the expansion plate, and the adhesive piece 5 is stacked on the side wall of the back sheet 9 by folding the fold line 11 of the side sheet in the same manner.

The overlapping part of the adhesive piece 5 and the back sheet 9 is adhered with glue or hot melt adhesive, etc. to form a second adhesive.
The container is folded in two as shown in the figure.

The simple container of the present invention has the above-mentioned structure, and in order to expand the container to store articles, the fold lines 12 of the bottom sheet 6 are pushed up inward to open the bottom sheets 61, 62. As shown in FIGS. 3 and 4, one bottom surface exhibiting a curved surface is formed, and at the same time, the side sheets 31 and 32 are expanded from the fold line 11 to form side surfaces and a space for storing articles.

As shown in the drawing, the interrupted grooves 7 and 8 are formed into arcuate curves, so that when used as a container, the bottom surface has an inwardly curved surface, and the front sheet 1 and the back sheet 9 are also curved. Since the fold line 12 is inverted into an arched shape and supports the bottom sheet 6, shape retention is good.

In this container, compressive force is applied to the interrupted grooves 7 and 8 that are bent in order to maintain the shape of the container, especially in the center, but the simple container of the present invention is made from a thermoplastic resin foam sheet. Because of this structure, it is strong and there is no risk that the interrupted grooves 7 and 8 will be cut or damaged.

If this is similarly formed from cardboard or the like, the interrupted grooves cannot withstand the pressure and are easily cut, making it impossible to function as a container.

When the front sheet 1 and the back sheet 9 are tapered and assembled, as shown in FIG. 3, there is an advantage that storing and taking out articles is facilitated by providing an inclined surface that expands upward in a conical shape as shown in FIG.

Further, as shown in the drawings, by forming the upper end of the back sheet 9 in an upwardly expanding arc shape and the upper end of the front sheet 1 in a downwardly expanding arc shape, it becomes easier to carry the container and take items in and out.

The simple container of the present invention can be easily molded from a single foamed thermoplastic resin sheet, and the folding lines 2.4 and 11.12 are formed simply by mechanically pressing with a linear pressing tool. This pressure crushes the air bubbles and reduces their thickness, making the folding lines and folding lines flexible.Therefore, when the folding lines and folding lines are bent, there is a risk of cracking and damage. do not have.

The simple container of this invention has excellent insulation properties and does not absorb moisture, so
It is extremely suitable as a container for french fries, sweets, bread, etc. in tourist areas and other places.

[Brief explanation of the drawing]

The drawings illustrate the simple container of the present invention, with Fig. 1 being a plan view of the unfolding plate, Fig. 2 being a plan view showing the folded state, and Fig. 3 showing the state in which it is expanded to form a storage section. FIG. 4 is a sectional view taken along the line AA in FIG. 3. The main symbols in the drawings are as follows. 1... Front seed, 2, 4... Folding line, 3, 31.32... Side sheet, 5...
...Adhesive piece, 6,61.62...Bottom sheet,
7, 8...... Cutting groove, 9... Back sheet, 11.12... □ - Broken line.

Claims (6)

[Scope of utility model registration request] (1) Consisting of four thermoplastic resin foam sheets, side sheets are continuous on both sides of the front sheet via folding lines, and a bottom sheet and a back sheet are connected to one side of the front sheet with interrupted cuts. The adhesive strips are connected to each other by the grooves, and the adhesive pieces are attached to the side sheets through the folding lines, and the adhesive pieces are attached to both ends of the back sheet, and the side sheets and the bottom sheet are connected to each other by the grooves. A simple container characterized by being folded along a crease line at its center. (2) The simple container according to claim 1, which is a utility model registered, and is formed by mechanically pressing the folding line and the folding line, and the thickness thereof is reduced and made flexible. (3) The simple container according to claim 1, wherein the interrupted grooves are formed in an arc shape symmetrically expanding outward from the center of the bottom sheet. (4) The simple container according to claim 1, wherein the front sheet and the back sheet are similarly tapered upwardly. (5) The simple container according to claim 1, wherein the thermoplastic resin foam sheet is a foam sheet of polystyrene or styrene copolymer resin. (6) The simple container according to claim 1, wherein the thermoplastic resin foam sheet has an expansion ratio of 5 to 20 times and a thickness of 0.1 to 3 mm.