JP3116878U - Paper container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper container which can be fixed without folding a single paper sheet material and using an accessory such as glue, tape or a gripping tool.
SOLUTION: A folded portion provided outside the first side wall portion of the paper sheet material and a folded piece provided outside the folded portion, the folded portion being outside the first side wall portion. The pair of bent portions are pressed from the outside, and the folded piece is bent inward at a mountain fold portion at the tip of the folded portion, and between the first side wall portion and the pair of bent portions. The bent portion is fixed by being inserted into the.
[Selection] Figure 3

Description

  The present invention relates to a paper container that can be fixed to a paper container that is assembled only by folding a piece of paper, without using an accessory such as glue, tape, or a gripping tool.

  A first conventional example of a paper container will be described with reference to FIGS. FIG. 5 is a view showing the shape of the sheet material before assembling into the container. FIG. 6 is a diagram showing a diagram in the middle of assembling the sheet material. FIG. 7 is a diagram illustrating an example of a container that has been assembled. As shown in these drawings, with the bottom wall portion 2 as the bottom, the pair of side wall portions 4 are erected at the valley fold portion 3, and the pair of side wall portions 6 are erected at the valley fold portion 5. After folding the folded portion 10 at the valley fold portion 9 into two, the container is assembled by pressing each pair of folded portions 10 from the outside of the first side wall portion 4 toward the center portion. However, since the bent portion 10 pressed against the first side wall portion 4 spreads outward by this alone and the shape of the container collapses, the bent portion overlapped outside the first side wall portion 4 as shown in FIG. The bent portion 10 is fixed by sticking the tip portion of 10 with a seal or tape.

  FIG. 8 is a diagram for explaining a second conventional example (Patent Document 1). In FIG. 8, a hole is made in the end of the bent portion 10, and the bent portion 10 is fixed by stopping the gripping tool 15 in this hole.

FIG. 9 is a diagram for explaining a third conventional example (Patent Document 2). In FIG. 9, a folded portion 35 is provided on a pair of side wall portions 32 provided around a rectangular bottom wall portion, a rectangular folded piece 37 is formed at the tip of the folded portion, and the folded portion 35 is connected to the side wall portion. The bent portion 34 is inserted into the side wall 33 and the bent portion 35 so as to be folded between the side wall portion 33 and the bent portion 35. Fix it.
JP 2004-051155 A JP-A-10-273131

  In the structure in which the bent portion 10 as shown in FIG. 7 is pasted with a tape or a sticker, since the sticking position varies, it is difficult to unify the tape and the seal at the same position, and the production is troublesome and expensive. There was a drawback. In addition, in the structure in which the bent portion 10 is fixed using a gripping tool as shown in FIG. 8, an accessory is required in addition to the paper sheet, which is also expensive, and a part of the accessory is accidentally placed in the container. If it falls, there is a risk that this article may be mixed with food in the container and cause accidental ingestion. Further, in the conventional example of FIG. 9, processing such as tape attachment and accessories are unnecessary, but the engagement between the folded portion 35 and the folding piece 37 is weak, the force for fixing the folded portion 34 is weak, and the container is easily broken. There were drawbacks.

  The present invention has a folded portion provided outside the first side wall portion, and a folded piece provided outside the folded portion, the folded portion is folded outside the first side wall portion, The pair of bent portions are pressed from the outside, and the folded piece is bent inward at a mountain fold portion at the tip of the folded portion and inserted between the first side wall portion and the pair of bent portions. Thus, the bent portion is fixed.

  As described above, according to the paper container of the present invention, the tip of the trapezoidal folded portion is provided with, for example, a rectangular folded piece with a lateral side protruding, and the folded portion is folded on the first side wall portion. After folding from the outside of the folded part, the folded part is folded inward with the boundary line between the folded piece and the folded part as an axis, and the folded part is inserted between the folded part and the side wall part to fix the folded part. Since it did in this way, since a folding piece is easy to be inserted inside a bending part and the folding piece is wider than the width | variety of a folding | turning part, the inserted folding piece is hold | suppressed by a folding part. Therefore, the folded piece is not easily detached from the bent portion, and the container is not easily collapsed with a simple structure, and an inexpensive container that does not require an accessory or a gluing process can be manufactured.

  FIG. 1 is a view showing the shape of a paper sheet material 1 for assembling the paper container of the present invention. A container is created from this sheet material 1. The same parts as those in the conventional example shown in FIG. The sheet material 1 includes a bottom wall portion 2 at the center of a quadrilateral shape, a first side wall portion 4 and a second side wall portion 6 provided around the bottom wall portion 2, and an outer side of the first side wall portion 4. The folding part 22 for folding | turning provided in this and the folding piece 24 provided in the outer side of the folding | turning part 2 are comprised. Although FIG. 1 shows an example in which the folding member is provided outside the first side wall portion 4, the folding member may be provided outside the second side wall portion 6. In FIG. 1, a portion that is bent in the sheet is indicated by a dotted line and a two-dot chain line. A dotted line indicates a mountain fold, and a two-dot chain line indicates a valley fold.

  Reference numeral 2 denotes a bottom wall portion having a parallelogram shape such as a square or a rectangle at the center of the sheet, which corresponds to the bottom when the sheet is assembled into a container. Reference numerals 3 and 5 denote a pair of valley fold portions facing each other, and the outer side wall portion is erected through this portion. Reference numeral 4 denotes a first side wall portion that stands up via the valley fold portion 3, and 6 denotes a second side wall portion that stands up via the valley fold portion 5. These form the side wall of the container when assembled in the container. 7 is a mountain fold portion on both sides of the pair of first side wall portions 4, 8 is a valley fold portion on both sides of the pair of second side wall portions 6, and 10 is a mountain fold portion 7 of the first side wall portion 4 and the second side wall portion 6. It is a bending part which connects the valley fold part 8. The bent portion 10 is bent in half at the middle by the valley fold portion 9, and is bent outward along the first side wall portion 4.

  That is, the central portion of the sheet material 1 has four valley fold portions 3, 5 that divide the bottom wall portion 2 and the side wall portions 4, 6 around the bottom wall portion 2 that is arranged at the center. Is formed, and the mountain folds 7 on both sides of the first side wall 4 are formed on the extension of the one valley fold 5, and the valleys on both sides of the second side wall 6 are formed on the extension of the other valley fold 3. Folded portions 8 are formed respectively. The bent portion 10 is a portion that is pressed against the first side wall portion 4 along the mountain fold portion 7 after the first side wall portion 4 and the second side wall portion 6 are erected and the central portion thereof is bent at the valley fold portion 9. It is.

  Reference numeral 22 denotes a pair of, for example, trapezoidal folded portions provided outside the first side wall portion 4. The folded portion 22 is bent outward at the mountain fold portion 11. Reference numeral 24 denotes a folded piece provided at the tip of the trapezoidal short side of the folded portion 22, and reference numeral 23 denotes a mountain fold portion where the folded piece 24 is bent outward. As shown in FIG. 1, the folding piece 24 is formed so as to protrude laterally from the tip of the trapezoidal short side of the folded portion 22. The reason for this will be described later. Further, the shape of the folding piece 24 is preferably a rectangular shape or a trapezoidal shape, but is not limited thereto, and various shapes can be adopted as described later.

  FIG. 2 is a view showing a state in the middle of assembling in the case where the sheet container 1 shown in FIG. In FIG. 2, a pair of first side wall portions 4 are erected via a valley fold portion 3 with the bottom wall portion 2 as a bottom, and a pair of second side wall portions 6 facing the first side wall portion 4 are valley fold portions. 5 to form an outer frame of a generally rectangular container, and a pair of folded portions 10 folded in two at the valley fold portion 9 are folded at the valley fold portion 8 to form a first side wall. The basic shape of the container is formed by pressing against the portion 4. However, since the bent portion 10 spreads outward and the shape of the container is collapsed by this alone, in order to prevent this, the pair of folded portions 22 are bent outwardly via the mountain fold portions 11 respectively and each pair of folded portions is folded. Press from the outside of the bent portion 10. Thus, if a pair of bending part 10 is pressed down by the folding | turning part 22, it can prevent that the shape of a container folding | turning part collapse | crumbles.

  However, in the above step, the folded portion 22 is not fixed, and the bent portion 10 cannot be fixed as it is. Therefore, the folding piece 24 is further bent inward along the mountain fold portion 23 to form a pair of folded portions. When inserted between the bent portion 10 and the first side wall portion 4, the pair of bent portions 10 are pressed and fixed by the folded portion 22, and the folded piece 24 is pressed by the pair of bent portions 10. The shape of the container 100 is fixed, and the assembly is completed.

  FIG. 3 is a diagram illustrating a state where the assembly of the container 100 is completed. In addition, although this figure has shown only the one 1st side wall part 4 side for the sake of simplicity, the other 1st side wall part 4 side also becomes the same shape. In other words, the container 100 forms a side wall of the container with a pair of the first side wall part 4 and the second side wall part 6 that face each other and stand up with the bottom wall part 2 as a bottom. After a certain pair of bent portions 10 are folded in two at the valley fold portion 9, the bent portion 10 is bent at the valley fold portion 8 and bent so as to press against the first side wall portion 4, and then the folded portion 22. Is folded along the mountain fold portion 11 to hold the folded portion 10, and the folded piece 24 is folded so as to be inserted between the folded portion 10 and the first side wall portion 4 by the mountain fold portion 23. Since 24 is pressed down from above by the folding part 10, the folding piece 24 does not come out, so the folding part 10 is firmly fixed and completed as a container.

  In addition, the folding piece 24 has a structure that protrudes laterally from the tip of the trapezoidal short side of the folded portion 22, and the folding piece 24 overlaps the left and right folded portions 10 with a sufficient area, so that the shape of the container is deformed during use. Even so, the folding piece 24 is surely pressed by the bent portion 10 and is not easily removed, so that a stable container can be realized against deformation during use. In the above example, the folded portion 22 is pressed against the outside of the first side wall portion 4. However, it is needless to say that the structure may be such that the folded portion 22 is pressed against the second side wall portion 6. In this case, the sheet material 1 in which the folded portion 22 and the folded piece 24 are formed not on the outside of the first side wall portion 4 but on the outside of the second side wall portion 6 may be used.

  Although the case where the folding piece 24 is rectangular has been shown, it is not limited to this, and it may be a triangular shape or an elliptical shape as shown in FIG. 4 (a) or FIG. 4 (b), Various other shapes can also be used. However, in any case, the folding piece 24 protrudes laterally from the tip of the trapezoidal short side of the folding portion 22 in order to make it difficult to remove the folding piece 24 inserted between the folding portion 22 and the first side wall portion 4. A structure with parts.

It is an expanded view of the sheet material of the paper container which is the object of the present invention. It is the shape of the container in the middle of assembling the sheet material of the paper container of this invention. It is the shape of the container after the assembly of the paper container of the present invention. It is the shape of the folding piece in the paper container of this invention. It is an expanded view of the sheet material of the conventional container. It is the shape of the container in the middle of assembling the sheet | seat material of the conventional container. It is the 1st assembly example of the conventional container. It is a 2nd assembly example of the conventional container. It is a 3rd example of an assembly of the conventional container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet | seat material 2 Bottom wall part 3 Valley fold part 4 1st side wall part 5 Valley fold part 6 2nd side wall part 7 Mountain fold part 8 Mountain fold part 9 Valley fold part 10 Fold part 11 Mountain fold part 22 Folding part 23 Mountain Folding part 24 Folding piece 100 Container

Claims (5)

A paper container configured by bending a sheet of paper, and a pair of first side walls standing from two opposite sides of a parallelogram-shaped bottom wall portion and one of the bottom wall portions , A pair of second side walls standing from two opposite sides of the bottom wall, and a corner portion of the bottom surface provided between the adjacent first side wall and second side wall A bent portion configured symmetrically by a bent line extending linearly from the tip to the tip, a folded portion provided outside the first side wall portion, and a folded piece provided outside the folded portion. And
The folded portion is bent to the outside of the first side wall portion, and the pair of folded portions are pressed from the outside,
The folded piece is folded inward at a mountain fold at the tip of the folded portion, and is inserted between the first side wall and the pair of folded portions to fix the folded portion. A container characterized by being.   The paper container according to claim 1, wherein the folded piece has a rectangular shape.   The paper container according to claim 1, wherein the folded piece has a trapezoidal shape.   The paper container according to claim 1, wherein the folded piece has a triangular shape. The paper container according to claim 1, wherein the folded piece has an elliptical shape.

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