JP4435359B2 - Polygon paper box - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a polygonal paper box formed of cardboard.
[0002]
[Prior art]
The corner portion of the polygonal paper box is formed by connecting the end portions of adjacent side walls to each other with a connecting piece. In order to improve the water tightness of the corner portion, as shown in FIG. 7 and FIG. 8, there is one in which adjacent side walls 2a, 2b, 2c and 2d are connected in series by connecting pieces 4a, 4b, 4c and 4d. . This paper box raises the side walls 2a, 2b, 2c, 2d along the folds 1a, 1b, 1c, 1d provided on the respective sides of the bottom wall 1, and at the same time, connects the connecting pieces 4a, 4b, 4c, 4d to both sides. The folds 3a, 3b, folds 3b, 3c, folds 3c, 3d, folds 3d, 3a and the center folds 5a, 5b, 5c, 5d are folded so as to protrude outward, and both ends of each side wall are opposite ends of the adjacent side wall. As shown in FIG. 8, the adhesive is applied to both ends of the side walls 2a, 2c where the inner surfaces of the connecting pieces 4a, 4b, 4c, 4d folded in half are raised. It is fixed with.
[0003]
[Problems of the Invention]
However, as is apparent from FIG. 8, the upper end surfaces of the connecting pieces 4a, 4b, 4c, and 4d are exposed on the upper surface of the box, which is not preferable in appearance, and the contents are not seen from the upper surface of the box. If it leaks, there is a problem that it penetrates from the upper end surface of the connecting piece or enters into the fold.
[0004]
On the other hand, in order to reinforce the side wall, a double side wall has been conventionally used. However, a connecting piece similar to that shown in FIGS. 7 and 8 is provided, and this connecting piece is provided between adjacent double side walls. There is something to be sandwiched. In such a paper box, since the upper end surface of the connecting piece is hidden, the above-mentioned problems can be solved, but in order to perform automatic box making, a complicated device such as a so-called 8-point pasting box making machine is required, There is a problem of high costs.
[0005]
Accordingly, an object of the present invention is to prevent the upper end surface of the connecting piece of the corner portion from being exposed to the upper surface of the box with a simple structure.
[0006]
[Means for solving problems]
In order to solve the above problems, the present invention is a contents storage for polygons carton with both of the inner peripheral wall of the peripheral wall adjacent have a double wall consisting of an inner wall and an outer wall connected by integral connecting piece , Connecting both inner peripheral walls of adjacent peripheral walls with a single connecting piece, providing connection pieces at both ends of the outer peripheral wall of one adjacent peripheral wall , and reaching the upper edge at both ends of the outer peripheral wall of the other adjacent peripheral wall The connecting piece is divided into two by the center fold, the connecting piece and the notch are substantially the same shape, the outer peripheral wall is bonded to the outer surface of the inner peripheral wall, and the connecting piece is attached to the outer surface of the connecting piece. bonded to, the bent connecting piece with the connection piece which is joined to only one connecting piece folded in two from the edge of one wall to the outer surface of the other of the peripheral wall, perfect coupling piece to the folio in come the cut solid houses and It was was. If it does in this way, the upper end surface of a connection piece will not be exposed to the upper surface of a paper box.
[0007]
Embodiment
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a blank forming the paper box of the present invention. As shown in the figure, a pair of inner side walls 11a and 11a are provided on each side of the rectangular bottom wall 10 via folds 10a and 10a, and a pair of inner end walls 12a and 12a are provided via folds 10b and 10b. ing. The inner wall 11a and the inner end wall 12a are trapezoidal shapes extending outward from the folds 10a and 10b, and the inner wall 11a and the inner end wall 12a are connected to the outer wall via the folds 10c and 10d. 11b and an outer end wall 12b are formed.
[0008]
Both ends of the inner wall 11a and the inner wall 12a are connected to each other by connecting pieces 23 formed integrally through folds 21a and 22a. A fold 23a is formed at the center of the connecting piece 23 so that the connecting piece 23 can be folded in two. Further, connection pieces 24 are provided at both ends of each outer wall 11b via folds 21b, and notches 25 are provided at both ends of each outer end wall 12b. The upper edge 25a (see FIGS. 3 and 4) of the notch 25 is located below the fold line 10d. The triangle divided into two by the central fold 23a of the connecting piece 23, the triangle of the connecting piece 24, and the triangle connecting both ends of the notch 25 are substantially the same.
[0009]
When assembling the box from the blank as shown in FIG. 1, first, the outer walls 11b and 11b and the outer end walls 12b and 12b are bent along the creases 10c, 10c, 10d, and 10d, respectively, and the inner walls 11a and 11a and the inner ends are folded. The walls 12a and 12a are bonded to the outer surface (the back surface side in FIG. 1) with an adhesive. The bonded state is shown in FIG. FIG. 2 (a) is a view from the front surface, and FIG. 2 (b) is a view from the back surface. In this case, the connecting pieces 24 provided at both ends of each outer wall 11b are bonded to one triangular part divided by a fold 23a of the connecting piece 23 as shown in FIG. Thus, each side wall 11a and 11b and each end wall 12a and 12b are overlapped, and it supplies to an automatic box making machine in the state which became double.
[0010]
In the above state, as shown in FIG. 3, the side wall 11 composed of the inner wall 11a and the outer wall 11b and the end wall 12 composed of the inner end wall 12a and the outer end wall 12b are bent along the fold line 10a and the fold line 10b. When rising from the bottom wall 10 and the end edges of the side wall 11 and the end wall 12 are brought into contact with each other, the connecting piece 23 and the connecting piece 24 joined thereto protrude from the end edge of the end wall 12 in a folded state. Therefore, the protruding connecting piece 23 (including the connecting piece 24) is bent in the direction of the notch 25 formed in the end portion of the end wall 12 along the fold lines 21a and 22a, and is connected in two at the fold line 23a. The piece 23 is fixed in the notch 25 with an adhesive. As shown in FIG. 4, the notch 25 is formed in advance so that the connecting piece 23 folded in half fits tightly, so that the upper end surface of the connecting piece 23 is not visible from the upper surface of the box.
[0011]
The cutout 25 for storing the connecting piece 23 is not limited to the triangular shape as shown in the figure as long as the connecting piece 23 is not visible from the upper surface of the box, and may have a shape as shown in FIG. What is necessary is just to prescribe | regulate the shape of the connection piece 23 and the connection piece 24 so that it may correspond to the shape of this notch 25. FIG. FIG. 6 shows a connecting piece 23 of a box formed from a blank as shown in FIG. 5 and a notch 25 in which it is housed.
[0012]
As a material for the paper box of the present invention, in addition to cardboard, a paper coated with a synthetic resin, a synthetic resin film, or a metal foil laminated can be used. The shape of the box is not limited to a quadrangle, and may be a triangle or other polygons. Therefore, in the above-described embodiment, the side wall and the end wall are distinguished from each other.
[0013]
【The invention's effect】
According to the present invention, as described above, the connecting piece provided on the peripheral wall of the double-walled polygonal container is joined to the outer surface of the adjacent peripheral wall. Automatic boxing can be performed with the apparatus, and the cost can be reduced. And since the connecting piece is housed in a notch provided on the outer surface of the adjacent peripheral wall, the end face of the connecting piece is not exposed on the upper surface of the box, which is not only preferable in appearance, but also liquid or the like enters from the end face. Water resistance can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing an example of a paper box blank according to the present invention. FIG. 2 is a plan view of the same blank as a double wall. FIG. 4 is a front view of the paper box. FIG. 5 is a plan view showing another example of the blank. FIG. 6 is a front view of the paper box formed from the blank. FIG. FIG. 8 is a plan view of a conventional paper box [Explanation of symbols]
1 bottom wall 1a, 1b, 1c, 1d crease 2a, 2b, 2c, 2d side wall 3a, 3b, 3c, 3d crease 4a, 4b, 4c, 4d connecting piece 10 bottom wall 10a, 10b, 10c, 10d crease 11 side wall 11a Inner side wall 11b Outer side wall 12 End wall 12a Inner end wall 12b Outer end wall 21a, 21b Fold 22a, 22b Fold 23 Connecting piece 24 Connection piece 25 Notch 25a Upper edge of the notch

Claims (1)

In polygonal carton of connecting the inner peripheral wall and have a double wall consisting of an outer peripheral wall inside the peripheral wall of both of the adjacent peripheral wall integrally connecting pieces, adjoining provided a connection piece at both ends of the outer peripheral wall of one of the adjacent peripheral wall A notch that does not reach the upper edge is provided at both ends of the outer peripheral wall of the other peripheral wall, and the connection piece and the notch are substantially the same shape as the connection piece divided by a center fold, and the outer peripheral wall is the inner peripheral wall. And bonding the connecting piece to the outer surface of the connecting piece, folding the connecting piece in half and bending the connecting piece joined to the connecting piece from the edge of one peripheral wall to the outer surface of the other peripheral wall, contents accommodating polygonal carton, characterized in that the connecting piece to the two-folded and secured by housing snugly within came the cut.

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