JPH07125775A - Package cushioning body - Google Patents

Abstract

PURPOSE:To provide a package cushioning body high in mechanical strength, free from deformation under load and thus capable of protecting an article to be packaged satisfactorily. CONSTITUTION:In a package cushioning body 7 made of a sheet of corrugated cardboard by folding into a square tubular form and packed in a packaging case with an article to be packaged, a reinforcing piece 81 cut off the corrugated cardboard is provided across the opposite walls 74 and 76 of the square tubular body and is held in contact with the surfaces of these walls. Since in this way the reinforcing piece is held between the opposite wall surfaces of the square tubular cushioning body and since the load exterted on the one wall bears on the cushioning body and is transmitted therefrom to the other wall, the cushioning body is improved in mechanical strength and prevented from deformation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorbing body which is packed together with an object to be packed when the object to be packed is packed in a corrugated cardboard box and absorbs a shock.

[0002]

2. Description of the Related Art When packing various kinds of objects to be packed in a corrugated cardboard box, a buffer is packed in a gap inside the corrugated cardboard box in order to absorb and absorb an impact from the outside. Although various kinds of buffers are used, for example, in the case of lighting equipment and household electric appliances, since the object to be packed has a considerable weight, a buffer with high strength made of corrugated cardboard is used. ing.

As a conventional concrete example, as shown in FIGS. 6 to 8, a case of packaging a lighting fixture will be described.
In the figure, reference numeral 1 is a packaging box made of cardboard.
The packaging box 1 accommodates a lighting fixture main body 10 called a chassis, a reflector 11, and a louver structure 12 as a lighting fixture. Then, in order to prevent the appliance body 10, the reflector 11 and the louver structure 12 from moving in the packaging box 1 and prevent these items to be packed from interfering with each other, various packings are packed. It is housed with.

Numerals 2 and 2 are end buffers which prevent the articles to be packed from moving in the longitudinal direction and receive a load applied in the longitudinal direction. 3 and 3 are called louver retainers, and as can be understood from the sectional view of FIG. 7, they support the louver structure 12 accommodated in the bottom of the packaging box 1 and support the reflector 11. . Reference numeral 4 is a partition plate, and 5 and 5 are louver contact plates. These end cushions 2, 2, louver retainer 3,
3, the partition plate 4, and the louver plates 5, 5 are all made of corrugated cardboard.

By the way, the above-mentioned conventional end cushions 2, 2
As shown in FIG. 8, one corrugated cardboard was bent to be formed into a rectangular tube shape, and the ends were joined together by the adhesive tape 6. That is, in this cushioning body 2, the first wall surface 21 and the third wall surface 23 are spaced apart from each other to face each other, and the second wall surface 22 and the fourth wall surface 24 are spaced apart from each other to face each other. It constitutes a cylinder,
The first wall surface 21 and the fourth wall surface 24, which are end portions, are joined by the adhesive tape 6.

[0006]

However, in the case of the above-mentioned conventional buffer body 2, for example, when the load of the louver structure 12 is shocked, the wall surface 21 may be dented and deformed as shown by the imaginary line in FIG. It was When such deformation occurs,
The object to be packed cannot be supported, the object to be packed may move in the packaging box, or the shock may not be absorbed, which may damage the object to be packed.

Accordingly, an object of the present invention is to provide a cushioning body for packaging which has a high mechanical strength and is not easily deformed even when an impact load is applied, and which can well protect an object to be packaged. To do.

[0008]

In order to achieve the above object, the present invention relates to a packaging cushioning body in which a single corrugated board is bent to form a square tube shape and is accommodated in a packaging box together with an object to be packaged. The cushioning body includes a reinforcing piece formed by being cut out integrally from the corrugated cardboard, and the reinforcing piece is fitted between the mutually facing wall surfaces of the rectangular tubular shape so as to intersect and contact these wall surfaces. Is characterized by.

[0009]

According to the present invention, since the reinforcing pieces are interposed between the wall surfaces facing each other in the shock absorber having the rectangular tubular shape, the load applied to these wall surfaces is carried by the reinforcing piece and is transmitted to the other wall surface. As a result, the mechanical strength is improved, and the deformation of the buffer body is prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in FIGS. This embodiment shows an example similar to the case of packaging the lighting fixture shown in FIG. 6, and the same members as those in the drawings after FIG.
Reference numeral 1 is a cardboard packaging box, 3 is a louver retainer, 4 is a partition plate, and 5 is a louver contact plate, all of which are made of cardboard. Further, 10 is a main body of the lighting equipment, 11 is a reflector, and 12 is a louver structure, and corresponds to the object to be packed of the present invention.

Numerals 7 and 7 are buffer bodies according to the present invention. The buffer 8 will be described in detail with reference to FIGS. 2 to 4. This cushioning body 7 is formed of a single quadrangular corrugated board as shown in FIG. 2, and this corrugated board is formed with, for example, five bending lines a to e by folding work. By folding the folding lines a to e, there are 6 continuous wall surfaces 71 as a whole.
~ 76. These first wall surfaces 71 to 4
The wall surface 74 forms a rectangular cylinder, the fifth wall 75 is overlapped with the inner surface of the first wall surface 71, and the sixth wall surface 76 is overlapped with the inner surface of the second wall surface 72.
It constitutes a heavy wall.

A piece 77 to be inserted is formed on the sixth wall surface 76, and the piece 77 is inserted into an insertion hole 78 formed in the third wall surface 73 to be locked.

A cut line X is formed from the fifth wall surface 75 to the sixth wall surface 76, and the cut-out pieces 79 separated by the cut line X are T-shaped in a plan view.

In this cutout piece 79, a folding piece 80 is formed by a half-folded bending line f, and reinforcing pieces 81, 81 are formed by folding lines g, g by folding processing. . Reference numerals 82 and 82 are notch holes for insertion of the reinforcing pieces 81 and 81.

The corrugated board having such a structure is assembled in the order shown in FIG. That is, (A) of FIG.
Then, by folding the corrugated board of FIG. 2 along each of the folding lines a to e, the insertion piece 77 formed on the sixth wall surface 76 is
The first wall surface 71 to the fourth wall surface 74 form a square tubular shape by inserting and locking the insertion hole 78 formed in the third wall surface 73. Next, as shown in FIG. 3B, the cut-out piece 79 is bent at the bending line f to raise the folding piece 80, and the bending lines g, g are bent to form the reinforcing pieces 81, 81. Bend. Then, as shown in FIG. 3C, the folding piece 80 is folded on the outer surface of the fifth wall surface 75, and at the same time, the reinforcing pieces 81, 81 are cut into the cutout holes 82, 82.
Plug in. As a result, these reinforcing pieces 81, 81 are
It is fitted between two opposing wall surfaces 74 and 76.
In this state, as shown in FIG. 3C, the first wall surface 71
Is folded on the outer surface of the folding piece 80, and the first wall surface 7
1 is bonded to the fourth wall surface 74 with adhesive tapes 6 and 6. As a result, the buffer 7 is formed.

The cushioning body 7 having the above structure has a quadrangular outer shape, so that it can be used in place of the conventional cushioning body 2. In this case, in the cushioning body 7 of the present embodiment, the upper wall is the third wall surface 75, the folding piece 80 and the first wall surface 7.
1 has a triple structure, so that the mechanical strength of the upper wall is extremely high. Also, the sixth constituting the side wall
Since the second wall surface 72 is superposed on the outer surface of the wall surface 76, the side wall has a double structure, so that the strength of the side wall is also increased.

In addition, a fourth wall surface 7 forming an opposing side wall
Since the reinforcing pieces 81, 81 that intersect and contact the wall surfaces are fitted between the fourth and sixth wall surfaces 76, the reinforcing pieces 81, 81 supplement the strength.

Therefore, even if a pressing force in the direction of the arrow shown in FIG. 4 is applied, the above-mentioned triple wall and double wall and the reinforcing pieces 81, 81 bear the load, and particularly the reinforcing pieces 81, 81 bear the load. The fourth wall surface 74 and the sixth wall surface 74
Since the space between the wall surface 74 and the wall surface 76 of the
It is possible to prevent a defect such as a concave deformation.

Further, the reinforcing pieces 81, 81 are formed on the two opposing wall surfaces 74, 76 by changing the relative amount of cuts in the longitudinal direction of the folded piece 80 and the insertion notch holes 82, 82. It is possible to change the amount L (shown in FIG. 4) inserted in between. Therefore, the strength of the cushioning body 7 changes depending on the insertion amount L, so that the insertion amount L of the reinforcing pieces 81, 81 can be selectively set in accordance with the object to be packed in the packaging box 1.

Therefore, the objects to be packed in the packaging box 1, for example, the luminaire main body 10, the reflector 11 and the louver structure 1
2. Effectively prevent damage such as 2.

In the above embodiment, the cut-out piece 79 separated by the cut line X has a T shape in plan view, and two reinforcing pieces 81, 81 are formed on the left and right sides. However, the cut-out piece may be formed in a substantially L-shape to form one reinforcing piece 81. In this case, as shown as a modified example of the present invention in FIG. 5, one piece of the reinforcing piece 8 is provided between the opposing fourth wall surface 74 and sixth wall surface 76.
However, even if there is only one reinforcing piece 81, the mechanical strength can be improved. When the reinforcing piece 81 is one piece, the amount L inserted between the two facing wall surfaces 74 and 76 can be increased as compared with the case where two reinforcing pieces are formed.

In the above embodiment, the upper side wall is a triple wall and one side wall is a double wall. However, the present invention is not limited to these structures, and each side wall is a single wall. Good. Therefore, the cut-and-raised structure of the reinforcing piece 81 is not limited to the expanded shape shown in FIG. 2, and various measures can be taken.

Furthermore, in the above embodiment, an example of a lighting fixture was described as an article to be packaged, but the present invention is not limited to this and can be used as a buffer for various other articles to be packaged.

[0024]

As described above, according to the present invention, since the reinforcing pieces are interposed between the wall surfaces facing each other so as to form the rectangular tube shape, the reinforcing pieces bear the load applied to these wall surfaces, and In addition to providing the function of maintaining the space between the two, the length of this reinforcing piece can be selected and the amount inserted between two opposing wall surfaces can be varied, so that the machine corresponding to the object to be packed stored in the packaging box can be changed. Strength can be obtained. Therefore, it is possible to prevent the cushioning body from being deformed, and it is possible to prevent the object to be packed contained in the packaging box from being damaged.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention in which a lighting fixture is housed in a packaging box.

FIG. 2 is a developed plan view of the buffer body of the embodiment.

3A to 3D are perspective views showing the order in which the shock absorbers are assembled.

FIG. 4 is a sectional view of a buffer body.

FIG. 5 is a perspective view showing a shock absorber according to another embodiment of the present invention.

FIG. 6 is an exploded perspective view showing a conventional example in which a lighting fixture is housed in a packaging box.

FIG. 7 is a cross-sectional view of the conventional example in a packed state.

FIG. 8 is a perspective view of a cushioning body of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Packaging box 7 ... Buffer body 10 ... Lighting equipment main body 11 ... Reflector 12 ... Louver structure a ... g ... Bending line 71-76 ... Wall surface 79 ... Cutout piece 80 ... Folding piece 81 ... Reinforcing piece 82 ... Notch hole

Claims (1)

[Claims] 1. A cushioning body for packaging which is formed by bending one corrugated cardboard to form a square tube shape and is housed in a packaging box together with an object to be packaged. A cushioning body for packaging, comprising: the reinforcing pieces, and the reinforcing pieces are fitted between the mutually facing wall surfaces of the rectangular tube so as to intersect and contact the wall surfaces.