JP6724366B2 - Paper container - Google Patents

Description

The present invention relates to a paper container. In particular, the present invention relates to a paper container which is self-supporting and can be used as a container for hot snacks such as french fries.

Since the paper container is made of paper, it has advantages such as low cost, easy processing, and environmental compatibility, and has been widely used as various containers from the past. In particular, paper containers for sweets and foods play a role beyond simple containers by printing beautiful information and necessary product information on the surface, and are bustling the shelves of supermarkets and convenience stores.
On the other hand, paper containers are also used conveniently in fields such as fast food, and they are indispensable because of their low price, ease of disposal, and design that matches the product image. It is often used as a simple container for fresh foods such as so-called hot snacks.

However, with regard to self-sustainability, which is regarded as important in fields such as hot snacks, in a paper container, it may be difficult to be self-sustaining depending on the fragility of the paper, the type and amount of the contents, and the resilience of the paper. If the container cannot stably maintain its independence, the contents may be spilled out, and the product may be damaged, or clothes and hands may be soiled, which may cause troubles for consumers.

In order to solve such a problem, for example, in Patent Document 1, an attempt is made to maintain a three-dimensional shape by inserting a folding line into a box-shaped paper container to reinforce the body portion or incorporating a hollow shape. However, when the container is pushed open by the contents, there are drawbacks such as the legs opening and the independence cannot be maintained, which is not always satisfactory.

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The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a highly convenient paper container that can stably maintain its independence and is a container for hot snacks and the like.

As a means for solving the above-mentioned problems, the invention according to claim 1 is a paper container comprising one paperboard as a blank, the bottom part of which is formed by a fold line that folds the paperboard from bottom to top, The left and right wings of the folded back part are bonded together to form the left and right wings, and the body is folded along the folding line in the rear direction of the paper container, and the lid part is continuous with the upper side of the rear body. A vertical folding line is provided on the body to form a rectangular opening having four corners at the ends of the folding line. Further, the front and rear body are inflated on the body, and the left and right body are formed. Has a fold line in the horizontal direction that can be recessed, and the bottom part has a folded line that is continuous to the body and both left and right wing parts and is folded backward in a U shape at both left and right wing parts. To form the bottoms of the left and right torso , and the lid can be folded back to the rear side of the rear torso to expose the opening. The paper container is characterized in that the lid portion can be fixed by inserting it into a lid holding notch provided at an end portion of the wing .

The invention according to claim 2 is the paper container according to claim 1, characterized in that a notch penetrating the paperboard of the body is provided in the vicinity of the opening of the body.

According to the present invention, the horizontal ruled lines provided on the body keeps the container stable even when the contents are put therein and keeps the self-supporting property stable, which is convenient as a container for hot snacks and the like. It is possible to provide a highly reliable paper container.

According to the invention as set forth in claim 2, a more convenient paper container is provided, in which the paper container can stably maintain its self-supporting property and can hold a toothpick in the container as a container for hot snacks. It is possible to provide.

FIG. 1 is a schematic perspective view for explaining an embodiment of a paper container according to the present invention. FIG. 2 is a schematic plan view of the paper container according to the present invention for explaining an embodiment. FIG. 3 is a schematic plan view for explaining another embodiment of the paper container according to the present invention.

Hereinafter, a detailed description will be given of a mode for carrying out the present invention with reference to FIGS. 1 to 3. However, the present invention is not limited to the examples shown here. The invention is limited only by the claims.

FIG. 1 is a schematic perspective view for explaining an embodiment of a paper container according to the present invention. The paper container (20) is a paper container made of a piece of paperboard. The bottom part (1) is formed by folding the paperboard from bottom to top, and the left and right side parts of the folded back part are adhered and folded back. It is composed of a body part (2) formed by denting and a lid part (3) continuous with the upper side of the rear body part (4). The bottom folding line (13) forms the bottom (1) and is folded backward to form the bottom of the left and right trunks.

The body (2) is composed of a front body (7), a rear body (4), a left body (6), and a right body (5), and the body (2) has a vertical direction. A folding line (10) is provided, and a rectangular opening (15) having four corners at the ends of the folding line is formed. The left and right trunks are formed by connecting the front and rear trunks at fold lines (17).

Further, in the body (2), the front body (7) and the rear body (4) are inflated to have a convex shape, and the left body (6) and the right body (5) are recessed to have a concave shape. It has a transverse folding line (8) which can be formed. At least one transverse folding line (8) is provided on each of the front body portion (7) and the rear body portion (4).

The lid portion (3) can be used as a lid by covering the upper opening (15) of the body portion (2). Alternatively, the opening (15) can be exposed by folding back the rear body portion (4) toward the rear side. The contents can be filled or taken out through the opening (15).

Further, the lid portion (3) is folded back in the direction of the arrow in the figure, and is inserted into the lid holding notches (9) of the left and right wing portions that are folded in the body rearward direction to fix the lid portion (3). Is possible. By fixing the lid portion (3), in addition to the design effect, it is easier and convenient to take out the contents from the self-standing paper container.

In this way, the paper container according to the present invention is three-dimensionally assembled and reinforced by the folding lines, so that it is possible to secure self-supporting property.

FIG. 2 is a schematic plan view of the paper container according to the present invention for explaining an embodiment. This plan development view is a view seen from the inside of the paper container. Printing can be applied to the paper container as needed.In that case, it is necessary to apply it to the outer surface of the paper container on the opposite side in terms of safety of contents and visualization of print information. ,preferable. The three-dimensional paper container shown in FIG. 1 can be assembled by the blanks of the paper container according to the plan development view.

The blanks (21) on which the paper container (20) can be assembled have a lid part (3) at the top. The lower part continuing to the lid part (3) is the body part (2), and the upper part is the back body part (4) and the left body part (4) of the paper container with the folding line (13) at the bottom as a boundary. 6) and the rear half of the right side trunk (5). A lower part of the bottom folding line (13) has a front body part (7) of the paper container, a front half part of the left body part (6), and a front half part of the right body part (5).

In addition to the front body portion (7), the rear body portion (4), the left body portion (6), and the right body portion (5) which form the body portion (2), a glue portion (11) is provided on the left and right outside thereof. ) Including a left wing (18) and a right wing (19). When the bottom folding line (13) is folded back along the left and right wings, the upper and lower wings of the bottom folding line (13) are adhered to each other, and the folding lines (17) are provided to the rear of the paper container. Will be folded back.
At the same time, the left and right torso should be such that the front half and the back half of the left trunk (6) and the front half and the back half of the right trunk (5) are continuous at the fold line (17). Thus, the left and right body parts of the container body part (2) are completed.

The bottom sides of the folded left wing (18) and right wing (19) are bottom folding lines (13), and the bottom (1) and these left and right bottom sides ensure the independence of the paper container. You can
In this way, the blanks (21) for assembling the paper container (20) are made from a piece of paperboard. The outer paperboard shown in FIG. 2 is a blank (21), which is folded back from bottom to top with a bottom folding line (13), and glued on both sides with a gluing part (11) to bond the left wing ( 18) and the right wing (19).

The blanks (21) can be stacked in a state of being flatly folded and can be assembled into a three-dimensional shape into a paper container when used, as long as it has the shape up to the pasting.
Further, the shape of the gluing portion (11) is not limited to the shape shown here, and the entire wing can be used as the gluing portion, and the gluing portion can be appropriately glued in consideration of productivity and strength of the paper container. The shape of the part can be selected.
Further, the type of glue used is not particularly limited, and when the content of the paper container is food, it may be selected by considering the influence on the content and safety, etc. In the case of being able to hold the adhesive, a heat-adhesive material such as a heat seal or an adhesive material can be used in addition to the glue and the adhesive.
When assembling the blanks (21) into the paper container (20), the left and right wings are folded backward along the folding line (17) to form the left wing (18) and the right wing (19). The bottom fold line (13) forms the bottom (1) of the paper container (20), and folds backward to form the bottom of the left and right wings. This allows the paper container (20) to more stably stand on its own. Simultaneously with the formation and folding of the wings, the left side body (6) and the right side body (5) are formed.

A vertical folding line (10) is provided on the body. The fold line (10) in the vertical direction can be provided not in a straight line shape but in a fold line shape. In the example shown here, two vertical folding lines (10) are provided on the front body portion (7) and two on the rear body portion (4), and these four vertical folding lines ( In 10), the ends are the four corners of the rectangular opening (15).

Further, a lateral folding line (8) is provided on each of the front body portion (7) and the rear body portion (4), and the lateral folding line (8) extends to the ends of both the left and right wings. The horizontal folding line (8) is provided at least at one or more locations across the front body portion (7) and the rear body portion (4).

Since the vertical folding line (10) is provided in a polygonal line shape, the body having four corners becomes a square pillar having a rectangular opening (15), but the horizontal folding line (8) is formed from both left and right wings. ), the front body part (7) and the rear body part (4) have a convex shape that bulges in the central part thereof, and a concave shape that is recessed on the left and right body parts. A horizontal line is formed. By adding these irregularities, the three-dimensional shape of the paper container (20) becomes stronger and it becomes easier to stably maintain the self-supporting property. For this reason, the left and right sides are not pushed apart even when the contents are put therein, and the self-supporting property can be stably maintained.

In addition, a notch (12) penetrating the paperboard can be provided near the opening of the body. This is very convenient, for example, when picking up a hot snack with a toothpick, since it is possible to hold a toothpick etc. by this notch (12).

The position (12) and the shape of the cut are not limited to the examples shown here, and any shape can be selected in consideration of ease of use, the size and shape of the tool to be held. Further, in forming the notch (12), it is possible to appropriately select from known methods such as a method using punching or a blade.

FIG. 3 is a schematic plan view for explaining another embodiment of the paper container according to the present invention. Also in this example, the three-dimensional paper container shown in FIG. 1 can be assembled as in the example shown in FIG.
In the example shown here, the vertical folding line (10) is not a straight line-shaped polygonal line, but a curved line, and by this shape, the front body (7) and the rear body (( The convex shape of 4) and the concave shape of the left and right body parts can form a smoother curved surface. This curved surface is effective not only in terms of design, but also in improving the strength of the surface.

As described above, according to the present invention, it is possible to provide a highly convenient paper container that can stably maintain its self-supporting property and is a container for hot snacks and the like.

1... Bottom 2... Body 3... Lid 4... Rear Body 5... Right Body 6... Left Body 7... Front Body 8... Horizontal fold line 9... Lid holding notch 10... Vertical fold line 11... Gluing part 12... Notch 13... Bottom fold line 15... Opening 17...・Fold line 18・・・Left wing 19・・・Right wing 20・・・Paper container 21・・・Blanks

Claims (2)

A paper container that uses a piece of paperboard as a blank,
The bottom part is formed by folding lines that fold back the paperboard from bottom to top, and the left and right side parts of the folded part are adhered to form the left and right wing parts, and the body part that is folded back in the paper container at the folding lines And a lid part that is continuous with the upper part of the rear body part,
A vertical folding line is provided on the body to form a rectangular opening having four corners at the ends of the folding line.
In addition, the body has a transverse fold line that allows the front and rear body to swell and the left and right body to be recessed.
The bottom part of the left and right torso is formed by folding back lines that are continuous to the torso part and both left and right wing parts in a U-shaped backward direction on both left and right wing parts.
The lid part can be folded back to the rear side of the rear body part to expose the opening, and the lid part can be folded back toward the body part to provide a lid holding part at both ends of the left and right wings. A paper container characterized in that the lid can be fixed by inserting it into a notch. The paper container according to claim 1, wherein a notch that penetrates the paperboard of the body is provided in the vicinity of the opening of the body.