JP2002264926A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a packing box wherein a stacking strength of corrugated fiberboard boxes which must be changed depending on a transportation means, environments during storage, the number of boxes to be stacked, etc., can be easily changed without changing a material of a corrugated fiberboard and without using another reinforcing member. SOLUTION: Extensions are provided on joining margins of two halves, and one of the joining margins is fixed to the other half to have them set up into a box. The extension of the joining margin has creases which can be folded into a prism. The extension is folded into the prism form, thereby forming a reinforcing portion and improving the stacking strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing box for packing an object to be packed such as electronic equipment.

[0002]

2. Description of the Related Art Conventionally, as an assembling method of a packing box (hereinafter, referred to as a cardboard box) for packing an object to be packed such as an electronic device, there is a method shown in FIG.

That is, a left side plate 1L and a left-side bent piece 1LU for a top plate are formed on a first rectangular corrugated paper made of a double-faced corrugated paper 4A having corrugated paper adhered to both sides of corrugated paper.
(Hereinafter referred to as an upper left inner flap), a left bent piece 1LD for a bottom plate (hereinafter referred to as a lower left inner flap), a front side plate 1F, and a front bent piece 1FU for a top plate (hereinafter referred to as upper front outer). Flaps), a front bent piece 1FD for a bottom plate (hereinafter referred to as a lower front outer flap), and a joint 2R extending to the right side of the front side plate 1F. The left inner flaps 1LU and 1LD and the upper and lower front outer flaps 1FU and 1FD are each bent inward to form a first half 3A having a substantially L-shape as a whole.

Similarly, a right side plate 1R, a right bent piece 1RU for the top plate (hereinafter referred to as upper right inner flap) and a right side plate for the bottom plate are formed on a second substantially rectangular corrugated cardboard made of double-faced corrugated paper 4A. Folded piece 1RD (hereinafter referred to as lower right inner flap), rear side plate 1B, rear bent piece 1BU for top plate (hereinafter referred to as upper rear outer flap), and rear bent piece 1B for bottom plate
D (hereinafter referred to as the lower rear outer flap) and a passage 2L extending to the left side of the rear side plate 1B. 1BD is bent inward to form a second half 3B having an almost L-shape.

[0005] The first half 3A and the second half 3B described above.
Are fixed to the inner ends of the right side plate 1R and the left side plate 1L with a staple 5 or the like to form a cardboard box 10 as shown in FIG. 5B.

Next, as shown in FIG. 6, cushioning materials 7L and 7R such as polystyrene foam are provided on both left and right ends of a packaged object 6 such as electronic equipment.
Are housed in the cardboard box 10 by enclosing them vertically and vertically.

In the above-described corrugated cardboard box 10 of FIG. 5, an example in which double-sided corrugated paper 4A is used has been described. The material of the corrugated cardboard used for these corrugated cardboard boxes 10 is strength during transportation and storage, mainly Determined by the strength, roughly depends on the height inside the shipping container.

Further, when shipping is carried out during export, the cardboard box 10 is exposed to a high-humidity environment for a long time, so that the strength of the cardboard box 10 is reduced.

In such a case, in order to secure the strength of the stacking, the material of the corrugated paper is changed to use a high-strength double-sided corrugated paper 4B as shown in FIG. 6 (B). The double-sided corrugated paper 4B has a triple structure on one surface of the double-sided corrugated paper A4 via a corrugated paper, as shown in the enlarged cross section of FIG.

As shown in FIG. 7 (B), the inner heights of the front and rear left and right side plates 1F, 1B, 1L and 1R are provided at the four corners of the cardboard box 10 as shown in FIG. 7 (A). A corner pad 8 is prepared by bending corrugated paper having the same dimensions into an L-shape.
The cardboard box 10 is inserted into the cardboard box 10 to change the stacking strength and the material of the cardboard box 10 according to the environment such as the transportation state and the storage state.

[0011]

In the conventional cardboard box 10 shown in FIG. 6B, a high-strength double-sided cardboard box 4B is used.
Is expensive, the thickness of the corrugated paper increases, the volume during transportation increases, and the cost increases.

Further, in the corrugated cardboard box 10 shown in FIGS. 7A and 7B, a corner pad 8 as a reinforcing member is formed separately from the corrugated cardboard box 10 and a mold for assembling the corner pad 8 is used. Work is required. In addition, it is necessary to change the material in accordance with the environment such as the transportation state and the storage state, and the cost of the mold increases, the number of man-hours, the management cost, and the like increase.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the problem to be solved by the present invention is to provide a cardboard box which must be changed depending on transportation means, storage environment, the number of sheets to be stacked, and the like. An object of the present invention is to provide a packing box in which the stacking strength can be easily changed without changing the material of the corrugated cardboard and without using another reinforcing member.

[0014]

According to a first aspect of the present invention, in a packing box for fixing two passages of two halves to each other, an extension portion is provided at the passage. The present invention provides a packing box in which an extended portion is bent into a prism shape to form a reinforcing portion.

According to a second aspect of the present invention, an extension portion is provided at the passage of the two halves, and one of the passages is fixed to the other half and assembled into a box shape to extend the passage of the passage. The installation portion is a packing box having a fold that can be bent into a prismatic shape.

According to the first and second aspects of the present invention, the stacking strength can be increased by providing the extending portion at the passage of the packing box, and the stacking strength can be easily changed. A box is obtained.

[0017]

FIG. 1 shows an embodiment of a packing box according to the present invention.
4 to FIG. 1A and 1B are perspective views showing the assembling of the cardboard box of the present embodiment. FIG. 2 is a development view of corrugated paper constituting a half of the cardboard box of the present embodiment.
FIG. 3A is a perspective view showing a cardboard box of the present embodiment in a stacked state, and FIG. 3B is a view of the cardboard box of FIG.
FIG. 4 is a perspective view showing the assembling of a cardboard box according to another embodiment.

The cardboard box 10 according to the present embodiment will be described with reference to FIGS. FIG. 2 is an exploded view of the first and second half corrugated paperboard for producing the corrugated paperboard box 10 of the present embodiment. In FIG. 2, portions corresponding to those in FIGS. 5 to 7 are denoted by the same reference numerals and described.

In FIG. 2, a first half 3A and a second half 3A are shown.
The corrugated paper of the half 3B is made of double-sided corrugated paper 4A. Since the first half 3A and the second half 3B have the same shape, in FIG. 2, the reference numerals of the second half 3B are shown in parentheses behind the first half 2A.

As shown in FIG. 2, the first half 3A is formed by connecting the left side plate 1L, the front side plate 1F, the passage 2L, and the extending portion 9 to form a substantially rectangular shape. A fold 11 is formed in the longitudinal direction at a position substantially at the center width of the extension portion 9.

The front side plate 1F includes an upper front outer flap 1FU serving as a top plate and a lower front outer flap 1FD serving as a bottom surface.
The left side plate 1L includes an upper left inner flap 1LU serving as a top plate and a lower left inner flap 1LD serving as a bottom surface.

As shown in parentheses in FIG. 2, the second half 3B is formed by connecting the right side plate 1R, the rear side plate 1B, the joint 2R, and the extending portion 9 to form a substantially rectangular shape. A fold 11 is formed in the longitudinal direction at the end of the 2R and at the approximate center width position of the extension portion 9.

The rear side plate 1B includes an upper rear outer flap 1BU serving as a top plate and a lower rear outer flap 1BD serving as a bottom surface.
The right side plate 1R includes an upper right inner flap 1RU serving as a top plate and a lower right inner flap 1RD serving as a bottom surface.

The first half 3A and the second half 3B
As shown in FIG. 1A, upper and lower front and rear outer flaps 1FU, 1BU, 1FD, 1B with respect to front and rear side plates 1F, 1B.
D and upper, lower, left and right inner flaps 1LU, 1LD, 1RU, 1
The RD and the passages 2L and 2R are bent inward to form a generally L-shape as viewed from the top as a whole. Assemble the first half 3A and the second half 3B and move the second half 3B into the first half 3A in the direction indicated by arrow B.

Next, as shown in FIG. 1B, the passage 2L of the second half 2B is brought into contact with the inner rear end of the left side plate 1L of the first half 3A, and the first half The passage 2R of 2A is in contact with the inner front end of the right side plate 1R of the second half 3B, and is fixed with a staple 5, respectively.

Next, the folds 11 provided in the extending portions 9 of the passages 2L and 2R are bent inward and assembled into a triangular prism shape to form corner pads 12 at two diagonally opposite corners. The strength of the stacking of the cardboard box 10 is increased at portions 12 and 12. If necessary, small parts such as cords can be inserted into the corner pad 12 and transported.

FIG. 3A shows a state in which the cardboard boxes 10 (10A, 10B, 10C) on which the corner pads 12 are formed are stacked as described above. When the cardboard box 10B is stacked on the cardboard box 10C and the cardboard box 10A is stacked on the cardboard box 10B,
Corner pads 12A, 1A at two corners on the diagonal assembled into triangular prisms of respective cardboard boxes 10A, 10B, 10C.
2B and 12C are superimposed and stacked.

The corner pad 12C, which has become a triangular prism, bears a part of the load of the upper cardboard boxes 10A and 10B, and the cardboard box 10B and the cardboard box 1C are supported.
The deformation of 0C can be prevented.

FIG. 3B is a side sectional view taken along the line AA 'of the upper cardboard box 10A of FIG. 3A.
Along with the reinforcing effect of the corner pad 12A, the cardboard box 1
The stacking strength is also increased by the cushioning materials 7L and 7A in contact with the inner surface of 0A.

FIGS. 4A and 4B show a cardboard box 10 of another embodiment. FIG. 4A shows a state where the cardboard box 10 having the same structure as that of FIG. 1A is assembled. It is a perspective view explaining. The first half 3A and the second half 3B move in the direction of arrow B to be integrated, insert the passages 2L, 2R into the inside of the left and right side plates 1L, 1R, and fix with the staple 5. .

FIG. 4B shows the corrugated cardboard box 10 fixed with the staple 5. For example, when the corrugated cardboard box 10 is destined for domestic use and is not exposed to a high-humidity environment, an appropriate number of stacks are performed. When sufficient stacking strength can be obtained, as shown in FIG. 4B, the extension portions 9 of the passages 2L and 2R are used.
Is used as it is without assembling it into a triangular prism as shown in FIG.

Even in the structure shown in FIG. 4B, the corrugated cardboard box 10 is provided by the extension portions 9 of the passages 2L and 2R.
Since the left and right side plates are doubled, the stacking strength of the cardboard box 10 can be higher than that without the extension portion 9 as shown in FIG.

[0033]

According to the cardboard box of the present invention, the stacking strength of the cardboard box, which must be changed depending on the transportation means, the environment at the time of storage, the number of sheets to be stacked, etc., without changing the material of the cardboard paper, A packaging box that can be easily changed can be obtained without using another reinforcing member.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an assembled state and an assembled state of a packing box according to an embodiment of the present invention.

FIG. 2 is an exploded view of a corrugated cardboard forming a packing box according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a stacked state of the packing boxes according to an embodiment of the present invention and a cross-sectional view of the packing boxes.

FIG. 4 is a perspective view showing an assembled state and after assembled of a packing box according to another embodiment of the present invention.

FIG. 5 is a perspective view showing an assembled state of a conventional packing box and an assembled state.

FIG. 6 is a perspective view for explaining a conventional method of assembling a packing box.

FIG. 7 is a perspective view for explaining a conventional method of reinforcing stacking of packing boxes.

[Explanation of symbols]

 1L ‥‥ Left side plate 1R ‥‥ Right side plate 1F ‥‥ Front side plate 1B ‥‥ Rear side plate 2L ‥‥ Subsection 2R ‥‥ Subsection 3A ‥‥ First half 3B ‥‥ Second half 5 ‥‥ ‥ Steple 6 ‥‥‥ Packed object 7L ‥‥ Buffer material 7R ‥‥ Buffer material 8 ‥‥‥ Corner pad 9 ‥‥‥ Extension part 10 ‥‥‥ Cardboard box 11 ‥‥‥ Fold 12 ‥‥‥ Corner pad 12A corner pad 12B corner pad 12C corner pad

Claims (2)

[Claims] 1. A packaging box for fixing two passages of two halves to each other, wherein an extension is provided at the passage, and the reinforcement is bent by bending the extension into a prismatic shape. A packing box characterized by being formed. 2. An extension portion is provided at the passage of the two halves, one of the passages is fixed to the other half and assembled into a box shape, and the extension portion of the passage is folded into a prismatic shape. A packing box having a fold that can be bent.