JP2606879Y2 - Folded box - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention is used as a container for souvenirs, confectionery, lunch boxes, etc., and has an upper cut-out side wall having a cut-out groove on the upper edge side above the bottom plate and a lower notch side wall having a notch groove on the lower edge side. The present invention relates to a folded box which is vertically assembled in a cross-girder shape by fitting the notch grooves of the parts to each other.

[0002]

2. Description of the Related Art Hitherto, as a folding box for souvenirs, confectionery, bento, etc., for example, the one disclosed in Japanese Utility Model Publication No. 53-11167 is known.

The folding box disclosed in this publication is shown in FIG.
As shown in FIG. 7, side walls 53, 53 are provided on both sides of the bottom plate 52 so as to be freely bendable by folds 54, 54, and cutout grooves 55 are formed on the upper edge side of the side walls 53, 53 outside the cutout grooves 55. End 5
6 are cut out so as to be the same as the width end face of the bottom plate 52, and the bottom plate 6 is provided as shown in FIG.
Side walls 63, 63 are provided on both sides of the base plate 2 so as to be freely bent by folds 64, 64. Box half 61 cut out and provided so as to be the same as the width end face,
As shown in FIG. 7, the notch grooves 55 and the notch grooves 65 are fitted to each other so that the side walls 53, 53, 63, 63 have a cross-girder shape.

Accordingly, the outer sides of the side walls 53, 63 of the box halves 51, 61 beyond the cutout grooves 55, 65, 65 project from the bottom plates 52, 62, respectively.

[0005]

However, in the above-mentioned conventional folding box, the notched grooves 55... 6 of the side walls 53 and 63 are provided.
5 project from the bottom plates 52 and 62, respectively, so that there is a problem that the strength of the protruding portion is weak and the portion is easily broken.

In particular, in the case of using the side wall portion of the wood grain pattern, as shown in FIGS. 8A and 8B, the strength against bending is large in the direction perpendicular to the wood grain direction.
As shown in (a), (b) and (c), the strength against bending is small in a direction parallel to the grain direction, and the paper tends to be easily cut at the bent part.

Therefore, as shown in FIGS. 10 (a) and 10 (b), when the grain direction is the lateral direction of the side walls 81 and 82, the hatched portions shown in FIG.
Notch-side ends 83 and 84 are easily damaged. FIG.
(A) As shown in (b), the grain direction is the side wall 91.9.
In the case of the vertical direction 2, the hatched portions shown in the figure, that is, the outer ends 93 and 94 of the cutout grooves of the side walls 91 and 92 are easily damaged.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a folded box in which a protruding portion is not easily damaged even if a cutout groove is formed in a side wall portion and the two are combined in a cross-girder shape. To provide.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a folding box according to the present invention is provided with an upper notch side wall having a notch groove on an upper edge side above a bottom plate and a lower notch side wall having a notch groove on a lower edge side. The bottom plate is formed to have the same width as the upper cut-out side wall portion, and the upper cut-out side wall portion is connected to the bottom plate. The bottom plate is formed integrally with the lower cutout side wall portion and is formed integrally with the lower cutout side wall portion and is formed to be freely bent by the fold. A lid plate with the same shape as that provided is formed by combining these bottom plate and lid plate with the same shape.
It is characterized by being.

[0010]

According to the above construction, the upper cut-out side wall is formed integrally with the bottom plate in the same width and is bent by the fold. On the other hand, the lower notch side wall portion is formed integrally with the cover plate in the same width and is bent by a fold. Then, the upper notch side wall portion and the lower notch side wall portion are fitted in a notch groove and combined in a cross-girder shape, thereby completing a folded box.

Therefore, the protruding portions that protrude outside the respective notch grooves of the upper notch side wall and the lower notch side wall are connected to the bottom plate or the cover plate. For this reason, even if a force acts on the protruding portion, the protruding portion is reinforced by the bottom plate or the cover plate, so that the protruding portion is not easily damaged even if a cutout groove is formed in each side wall portion and combined in a grid shape. It becomes possible to make a folded box. In addition, the above folding box is a combination of two identical flat plates.
To reduce the number of parts.
The production cost of the folding box can be further reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

The folding box of the present embodiment is used as a box for assembling souvenirs, confectioneries, and prepared foods, and as a lunch box.
(Made by Sekisui Plastics Co., Ltd.). The material is not limited to the above-mentioned expanded polystyrene, but can be formed of a lightweight resin material such as other polyethylene and polyvinyl chloride, and further, for example, such as paper, synthetic rubber, or wood. It is also possible to use materials.

As shown in FIG. 2, the above folding box is formed by cutting and bending a single flat plate 1 and combining two upper and lower sheets to form a box as shown in FIG. Is made of things.

That is, as shown in FIG. 2, the flat plate 1 is a rectangular flat member, and the grain direction is parallel to the longitudinal direction. A square bottom plate 2 is formed at the center of the flat plate 1. Side wall portions 4 as upper notch side wall portions are respectively provided at both ends in the longitudinal direction of the flat plate 1.
・ 4 is formed. Therefore, the side wall portions 4 and the bottom plate 2 have the same width. A V-shaped bent groove 3.3 is formed between the bottom plate 2 and each of the side wall portions 4.
Are formed integrally with each other, and can be bent freely with the bending grooves 3 as folds.

At both ends in the width direction of the side wall portions 4, notched grooves 5 cut out from both ends in the longitudinal direction to a position reaching, for example, the center of the wall height of the side wall portions 4.
Are formed respectively. Therefore, the side wall portions 4
The notches 5 are formed on the upper edge side of the side wall portions 4. The cutout dimension of the cutout groove 5 is formed to be the same as the thickness of the flat plate 1.

When assembling a folding box using the flat plate 1 having the bent grooves 3 and the notched grooves 5,..., Two flat plates 1 are prepared. That is, the two flat plates 1
・ 1 is bent at each bending groove 3 ・ 3, and each side wall 4 ・
4 is erected. The one flat plate 1 having the side wall portions 4 upright is used as a box body, and the other flat plate 1 having the side wall portions 4 upside down is turned upside down. And the notch grooves 5 of the side walls 4 are fitted to each other so that the side walls 4 of the flat plates 1 have a cross-girder shape. Thereby, folding box 1 as shown in FIG.
0 is completed.

As shown in FIG. 3, the folded box 10 completed in this manner is such that the projection 6 and the bottom plate 2 of the side wall 4 of the box body 11 located on the lower side are connected only by bending. The protrusion 8 on the side wall 4 of the lid 7 located on the upper side and the bottom plate 2 as a lid plate of the lid 7 are also connected. And since each bottom plate 2.2 and each protruding part 6.8 are bent perpendicularly to the grain direction of each other, each bottom plate 2.2 and each protruding part 6.8 are bent in the bending groove 3.3. Is less likely to break apart and break.

On the other hand, even if a force is required to bend the protrusion 6 inward (in the direction of arrow A) or outward (in the direction of arrow B) along the grain direction, the protrusion 6 and the box body 11 are bent.
Therefore, also in this case, there is little possibility that the protruding portion 6 is easily cut off along the grain direction on the cutout groove 5. The same applies to the relationship between the projection 8 and the bottom plate 2 of the lid 7.

As described above, in the folding box 10 of the present embodiment, the side walls 4 of the folding box body 11 are formed integrally with the bottom plate 2 in the same width and are bent by the bending grooves 3.3. On the other hand, the side wall portions 4 of the lid portion 7 are formed integrally with the bottom plate 2 as a lid plate to have the same width and are bent by folds. Then, the folding box 10 is completed by fitting these side wall portions 4 and 4 and the side wall portions 4 and 4 in the notch grooves 5 and combining them in a cross-girder shape.

Therefore, the side wall portions 4 and 4 and the side wall portions 4 and 4
4 are connected to the bottom plate 2 or the bottom plate 2 as a lid plate.

For this reason, even if a force acts on the protruding portions 6, 8, the protruding portions 6.8 are reinforced by the bottom plate 2 or the bottom plate 2 as a cover plate. Are formed to form a folded box 10 in which the protruding portions 6 and 8 are not easily damaged.

Also, by assembling the folding box 10 each time it is used at a sales floor or the like,
The storage space can be made small.
Further, even in transportation, it is possible to carry out transportation without assembling, so that it is possible to reduce transportation costs.

Since the folding box 10 is completed by combining two identical flat plates 1, the manufacturing cost of the folding box 10 can be reduced by reducing the number of parts.

It should be noted that the present invention is not limited to the above embodiment, and various changes can be made within the scope of the present invention. For example, in the above-described embodiment, a single flat plate 1 is formed by folding and processing two flat plates 1 and 2 into a box as shown in FIG. 1, but the present invention is not particularly limited to this. Instead, for example, as shown in FIG. 4, it is also possible to form the flat plate 1 as two lid plates 8 cut at the center position in the longitudinal direction as the lid portion 7.

By forming as described above, as shown in FIG. 5, the box body 11 is formed of the flat plate 1 and the cover plate 8 is used as the cover 7. This makes it possible to form the folding box 20 having the lids 9 that can be freely opened and closed.

In this folded box 20, an adhesive is applied to the joint between the side wall portion 4 and the bottom plate 2 of the box body portion 11 to assemble. By performing pressure drying, the side wall portion 4 can be easily further strengthened.

The lid 7 of the folding box 20 is attached to the box body 1.
1 can be formed by dividing the same flat plate 1 into two parts from the center. As in the case of the folding box 10, the number of components can be reduced, and the manufacturing cost can be reduced.

[0029]

As described above, in the folding box of the present invention, the bottom plate is formed to have the same width as the upper notch side wall portion, and the upper notch side wall portion is formed integrally with the bottom plate so as to be freely bent by the fold. On the other hand, the lower notch side wall portion is provided with a lid plate having the same shape as the bottom plate, which is formed in the same width and integrally with the lower notch side wall portion and is formed to be freely bent by a fold.
This is a configuration formed by combining a bottom plate and a lid plate having the same shape .

Thus, the folded box is completed by fitting the upper cut-out side wall portion and the lower cut-out side wall portion in the cut-out grooves and combining them in a cross-girder shape. The protruding portions that protrude outside the respective cutout grooves of the upper cutout side wall portion and the lower cutout side wall portion are connected to the bottom plate or the cover plate. For this reason, even if a force acts on the protruding portion, the protruding portion is reinforced by the bottom plate or the cover plate, so that the protruding portion is not easily damaged even if a cutout groove is formed in each side wall portion and combined in a grid shape. There is an effect that it becomes possible to make a folded box. Also, the above folding box is the same
Completed by combining two flat plates
Therefore, the production cost of folded boxes can be reduced by reducing the number of parts.
It also has the effect that it can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a structure of a folding box according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a structure of a flat plate used for a folding box main body or a lid body of the folding box.

FIG. 3 is an essential part perspective view for explaining in detail a structure of a protruding portion in the folding box;

FIG. 4 is a perspective view showing a structure of a lid plate used for a lid portion of the folding box.

FIG. 5 is a perspective view showing a structure of a folding box using the lid shown in FIG. 4;

FIG. 6 is a perspective view showing a structure of a side wall and a bottom plate in a folding box of a conventional example, and FIG.
(B) shows the other side wall and the bottom plate.

FIG. 7 is a perspective view showing a structure of a folding box formed by combining the side wall and the bottom plate.

8A and 8B are diagrams showing a state in which a plane board having a wood grain pattern is bent, wherein FIG. 8A is an explanatory view showing a plane board having a wood grain pattern in a vertical direction, and FIG. FIG. 4 is an explanatory view showing a state where the display is bent vertically.

9A and 9B are diagrams illustrating a state in which a flat board having a wood grain pattern is bent, wherein FIG. 9A is an explanatory diagram illustrating a flat board having a wood grain pattern in a horizontal direction, and FIG. FIG. 3C is an explanatory diagram showing a state in which the face plate is bent in parallel to the grain direction, and FIG. 4C is an explanatory diagram showing a state in which the flat plate is divided by the bending.

FIGS. 10A and 10B show a mounting state of a side wall having a horizontal grain pattern, wherein FIG. 10A is an explanatory view showing a state in which an upper cut side wall and a lower cut side are combined, and FIG. It is explanatory drawing which shows the damage location of the upper notch side wall part and the lower notch side wall part.

11 (a) and 11 (b) show an attached state of a side wall having a wood grain pattern in a vertical direction, wherein FIG. 11 (a) is an explanatory view showing a state where an upper cut side wall and a lower cut side wall are combined, and FIG. It is explanatory drawing which shows the damage location of the upper notch side wall part and the lower notch side wall part.

[Explanation of symbols]

 2 bottom plate (bottom plate, lid plate) 3 bent groove (fold) 4 side wall (upper cut side wall, lower cut side wall) 5 notch groove 6 protruding part 7 lid part 8 protruding part 10 folding box 11 folding box body 20 folding box

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 2-10213 (JP, U) JP-A 62-127924 (JP, U) JP-A 50-154331 (JP, U) JP-A 63-127 137721 (JP, U) Jikken 45-32528 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 5/00-5/76 B65D 6/00-13/02

Claims (1)

(57) [Scope of request for utility model registration] An upper notch side wall having a notch groove on an upper edge side and a lower notch side wall portion having a notch groove on a lower edge side are fitted on the upper side of a bottom plate in a cross-shaped manner by fitting the notch grooves to each other. In the folded box that is erected, the bottom plate is formed to have the same width as the upper notch side wall portion,
The upper cutout side wall portion is formed integrally with the bottom plate and is provided so as to be freely bent by a fold, while the lower cutout side wall portion is formed integrally with the lower cutout side wall portion in the same width and is freely bent by the fold. is formed, the cover plate serving as the bottom plate of the same shape is provided, a combination of a bottom plate and cover plate of the same shape
A folding box characterized by being formed .