JPS6223694Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a packaging box for accommodating a substantially semicircular product such as a motorcycle fender.

In the past, even approximately semicircular products were generally housed in rectangular parallelepiped boxes. As a result, there was a loss in the number of boxes and materials, which affected the cost of the product.

In view of the above points, the present invention reduces labor and material loss for the approximately semicircular products that are stored, eliminates the movement of stored items within the box, and allows the box to be folded into a small volume when empty. It is an object of the present invention to provide a packaging box that can be easily assembled when used.

That is, as shown in the drawing, two opposing parallel surfaces 1 and
It is composed of a hollow pentahedron in which 2 forms a congruent isosceles right triangle, and the 3 sides 3, 4, and 5 forming the rectangle form a congruent isosceles right triangle.
Among them, the rectangular side surface 5 on the base 6 side with the right angle part A of the isosceles right triangular surfaces 1 and 2 as the apex angle can be opened and closed as an article loading/unloading port, and the above-mentioned pair of isosceles right triangular surfaces 1 and 2, and those A fold line 7 is drawn along the bisector of the right angle part A to the side 6 along the article loading/unloading opening on the article loading/unloading port closing pieces 51 and 52 that are connected to the bases of the isosceles right triangular surfaces 1 and 2. It can be folded flat along the fold line 7.

The two closing pieces 51 and 52 connected to the base 6 of each of the isosceles right triangular surfaces 1 and 2 are symmetrical isosceles right triangles with the center line of symmetry being the base 6 of the isosceles right triangular surfaces 1 and 2, respectively. (The apex portion may be cut off.) Then, fold approximately the half portions 511 and 521 of each closing piece 51 and 52 near the apex portion double inward to form the back side of the isosceles right triangular surfaces 1 and 2. There are fold lines 8 and 9 parallel to the base 6 so that they can be aligned.

A slit 10 is opened along the fold line of the inner closing piece 51, that is, along the base 6 of one isosceles right triangular surface 1, into which the apex half 521 of the outer closing piece 52 is inserted.

The box of the first embodiment (shown in the first diagram) is made of a plate material such as cardboard that has been cut into a rectangle as shown in the developed view shown in Figure 3, and has fold lines, cuts, etc. made at the required positions. .

Then, when the two adjacent sides 3 and 4 of the open box shown in Fig. 2 are pushed in the direction of overlapping, the isosceles right triangular faces 1 and 2 and the closing pieces 51 and 52 connected thereto are formed as shown in Fig. 4. Each end 511.5
21 is folded in half along the center fold line 7, and the box is crushed and flattened as shown in Figure 5.

When the overlapping adjacent side surfaces 3 and 4 are separated and unfolded from the folded state shown in FIG. 5, the state shown in FIG. 511 and 521 stand up and are assembled with the access port open.

As shown in FIG. 6, the approximately semicircular product M is put into the box through the entrance formed on the bottom side 6 of the right angle apex portion A, and the closing pieces 51 and 52 are overlapped to form the outer closing piece 52. Insert the end 521 into the slit 10 and secure with adhesive tape or the like.

In addition, there is a partition and pad 1 in the string direction of the approximately semicircular product M.
1 (shown in the sixth figure) may be installed.

Ends 5 of each closing piece 51 and 52 folded into the box
11 and 521 are sandwiched between the back surfaces of the isosceles right triangular surfaces 1 and 2 and the side surfaces of the product M, as shown in FIG. 7, and serve as spacers. When a box is formed using the material shown in the developed view of FIG. 3 above (as shown in the first diagram), one side 3 of the other two sides except the side 5 for the loading/unloading port has three pieces 3, 3a, and 3b overlapping each other. .

The box of the present invention containing the approximately semicircular product M is the eighth
As shown in the figure, the side surfaces 5 for loading/unloading are assembled so as to overlap each other and packed into a container, for example.

In addition, the present invention, like the box in the embodiment shown in Fig. 9,
A pair of closing pieces 51 and 52 that close the entrance/exit
can also be made into a trapezoid with just a closed mouth.

Therefore, the developed view of the box in the case of the second embodiment is as follows:
As shown in Figure 10, it is a rectangle with adjacent left and right corners cut off. In this case, the triangular cut pieces 51a and 52a can be used to close the triangular openings 0 formed at both ends of the closed side surface 5.

As mentioned above, the packaging box of the present invention consists of a hollow pentahedron of isosceles right triangles whose opposing parallel faces are congruent, and among the three sides forming the rectangle, the right angle of the isosceles right triangle face is the apex angle. Since the rectangular side surface on the bottom side is used as the article loading/unloading port, it is easy to put in and take out the approximately semicircular product M, and moreover, the approximately semicircular product M can be packaged without leaving wasted space, compared to the conventional packaging method. Compared to a rectangular parallelepiped packaging box, the number of units and materials used are reduced, and, for example, the number of items that can be accommodated in a container is increased, resulting in lower packaging and transportation costs for the product.

Furthermore, the packaging box of the present invention has a pair of isosceles right triangular surfaces 1 and 2, and an article loading/unloading port closure symmetrical to the isosceles right triangular surfaces 1 and 2 connected to these triangular surfaces 1 and 2. Since the pieces 51 and 52 have a fold line 7 along the bisector of the corner of the right angle part A to the side 6 along the article loading/unloading opening, when the box is empty, fold it flat along the fold line 7. It can be folded and does not require space for transporting and storing empty boxes.

When in use, the box can be easily assembled by simply unfolding it, which reduces the number of man-hours required for packaging and improves efficiency.

Furthermore, a substantially half portion 51 near the top corner of a pair of closing pieces 51 and 52 that overlap and close the article loading/unloading opening.
1.521 is folded inward and inserted between the back surfaces of the isosceles right triangular surfaces 1 and 2 and the side surfaces of the product M, and serves as a spacer to prevent the product from moving within the box.

Furthermore, as shown in FIG. 3, the packaging box of the present invention unfolds into a rectangular shape, so there is no waste in material collection.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the assembled state of the first embodiment of the packaging box of the present invention, Fig. 2 is a perspective view with the article loading/unloading port open, and Fig. 3 is a developed view of the box of the first embodiment. , Figure 4 is a perspective view showing how to crush the box, Figure 5 is a perspective view showing how to crush the box.
The figure is a perspective view of the folded box, FIG. 6 is a front view of the box containing articles, FIG. 7 is an enlarged vertical side view taken along the line - in FIG. 6, and FIG. FIG. 9 is a front view showing how to stack packaging boxes, FIG. 9 is a perspective view of the box of the second embodiment, and FIG. 10 is a developed view of the box. 1 and 2 are triangular sides, 3, 4, and 5 are rectangular sides,
51 and 52 are closing pieces, 6 is a side along the article loading/unloading opening, and 7 is a fold line.

Claims (1)

[Scope of utility model registration request] It consists of a hollow pentahedron of isosceles right triangles whose opposing parallel surfaces are congruent, and among the three sides forming the rectangle, the rectangular side surface on the base side whose apex is the right angle of the isosceles right triangle surface is the article loading/unloading port. The pair of isosceles right triangular surfaces and the pair of article loading/unloading port closing pieces connected to the bases of the isosceles right triangular surfaces are provided with a corner of the right angle part to the side along the article loading/unloading port. A fold line is drawn along the bisector, and the article entry/exit closing pieces are made into symmetrical isosceles right triangles with the base of the isosceles right triangle as the center line of symmetry. A semicircular product packaging box with a crease line parallel to the bottom to double fold the outer closure piece inward, and a slit for inserting the half of the outer closure piece closer to the top corner along the fold line of the inner closure piece. .