JPH09328172A - Packaging case and assembling method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a cushion material which is simple and excellent in the working efficiency and the cushioning effect, by providing a fold line at a part of the inside flap of a packaging case, integrally formed by use of the same raw material with the packaging case and bending it at the fold line and only inserting the projections provided at the front end of the inside flap. SOLUTION: Fold lines are formed on the inside falps 4a, 4b of the cover face board or the bottom face board of a packaging case 3 integrally formed with a corrugated cardboad material, as a cushion material at the central part of a product, the inside flaps 4a, 4b are bent at the fold lines to provide the packaging case 3 forming the cushion members 15 at the central part of a product to be contained. In this way, this cushion material reduces the cost and the consumption of the raw material and hence, it improves the environmental problems and further, it improves the assembling efficiency and securely protects the central part of the contained product.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning member for supporting a product to be stored in a packaging box by forming a cushioning member by using an inner flap of a lid face plate or a bottom plate of a packaging box for packaging products. Regarding the packaging box.

[0002]

2. Description of the Related Art Conventional electronic equipment (audio, video tape recorder, etc.) products are protected from vibration during transportation and transportation and are prevented from being damaged by falling when packaging products by packaging them in a packaging box. For this purpose, a cushioning material is inserted between the product and the packaging box. Particularly for rectangular products, shock will be applied to any of the four corners of the product when the product is dropped.Therefore, cushioning materials made of polystyrene foam or other materials with high cushioning strength should be placed at the four corners of the product. It is used. Specifically, as shown in FIG. 5, the four corners of the product 20 are covered with cushioning members 21a, 21b, 21c, 21d made of expanded polystyrene material. The cushioning members 21a, 21b, 21c, 21d are substantially L-shaped and are fitted to the four corners of the product. The cushioning materials 21a, 21b, 21c, and 21d were fitted into the four corners of the product 20, and then stored in a packaging box 22 formed of a stepped pole material for packaging.

However, the product stored in the packaging box is supported and reinforced only by the cushioning material at the four corners, and the support and reinforcement of the central part of the product is not done at all. Therefore, when an impact is applied to the central part of the product, the product is damaged. Moreover, it has a printed circuit board for forming an electronic circuit inside the product like an electronic device, and since the printed circuit board is generally arranged in the substantially central part of the product, the printed circuit board is Damage is a serious problem of the product. Further, as described above, when the cushioning material is used only at the four corners of the product, the thickness of the cushioning material creates a gap between the product and the packaging box, and the product having a rectangular cube shape and a small thickness is When a shock is applied from the top or bottom of the product, the four corners of the product are retained and reinforced with cushioning material, but since there is no shock absorbing material in the center part, the center part of the product bends and the inside of the product For example, there is a problem that a printed circuit board of an electronic device is damaged such as a crack. In order to prevent this breakage and damage, a cushioning material 23 formed of a rectangular styrofoam material or a corrugated cardboard material separately from the packaging box is provided between the bottom surface of the product and the bottom surface of the packaging box.

[0004]

A conventional product packaging box is formed of a corrugated cardboard material, and the cushioning material is mainly a styrofoam material having a high cushioning degree. On the other hand, the use of Styrofoam materials has been reconsidered due to recent environmental and waste problems, and it is required to reduce the use of Styrofoam materials as much as possible. However, the impact and damage to the four corners of the product from the outside causes a great deal of damage and damage to the product, so the product is protected by a cushioning material that uses a polystyrene foam material with a high degree of cushioning, but the amount of polystyrene foam material used is reduced. Therefore, the cushioning material in the central portion of the product may be omitted, or the cushioning material in the central portion of the product may be omitted in order to reduce the number of manpower required to attach the cushioning material in the central portion of the product formed of corrugated board material or styrofoam material. However, when the cushioning material is used only in the four corners of the product as described above, a gap is created between the product and the outer box due to the thickness of the cushioning material, and when the shape of the product is a rectangular cube and the thickness is thin, When a shock is applied from the top or bottom direction of the product, the four corners of the product are retained and reinforced with shock absorbing materials, but if there is no shock absorbing material in the center part, the stress that the center part of the product bends is applied, There is a problem that damage and breakage inside the product occurs. Further, there is a problem that similar damage occurs even when a direct impact is applied to the central portion of the product.

[0005]

In order to solve the above problems, the present invention does not use a Styrofoam material as a cushioning material in the central portion of the product, but does not use a Styrofoam material, and a lid face plate of a packaging box integrally formed of a corrugated cardboard material or By bending the inner flap of the bottom plate to form a packaging box used as a cushioning material for the central part of the product to be stored, it is possible to reduce the usage of materials that pose environmental and waste problems, and to easily do it without human intervention. It is possible to assemble the cushioning material in the central portion of the product, and to provide a packaging box that reliably protects the central portion of the product from damage.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a cushioning member for supporting an upper surface or a bottom surface of a product stored in a packaging box by folding an inner flap on a lid surface or a bottom surface of the packaging box for packaging the product. Is.

The cushioning member is provided with a plurality of folds in the vicinity of the tip of one of the inner flaps forming the lid surface or the bottom surface of the packaging box, and further provided with a protrusion at the tip of the inner flap, and The other inner flap facing the inner flap is provided with a fitting portion into which the projection provided at the tip of the one inner flap is fitted, bent according to the fold of the one inner flap, and the projection is provided on the other inner flap. The cushioning member was formed by fitting in the fitting portion.

The cushioning member has a triangular cross section, a rectangular cross section, a semicircular cross section, or both inner flaps of the packaging box are bent, and a plurality of cushioning members are provided to provide a cushioning member according to the protection range required for the product. The shape or quantity of can be changed.

Further, the cushioning member may be formed only on a portion of the product to be supported and reinforced in the packaging box, or only on the lid surface or the bottom surface of the packaging box, or on both the lid surface and the bottom surface. The member can be formed.

When the product is stored in the packaging box having the cushioning member constructed as described above, the shock applied from the top surface or the bottom surface of the product is absorbed by the cushioning member, and the product can be supported and protected.

[0011]

Embodiments of the present invention will be described with reference to the drawings. In FIG. 1, the substantially L-shaped product four-corner cushioning members 2 a, 2 b, 2 c, and 2 d made of a styrofoam material that are formed so as to be fitted to the four corners of the product 1 are fitted to the four corners of the product 1. This product four corner cushioning member 2a, 2b, 2c,
After fitting 2d to the product 1, the product is stored in the packaging box 3. The packaging box 3 is formed of a corrugated board material, and is provided with a fold so as to have a shape substantially similar to the shape of the product 1, and is folded and assembled according to the fold. The flaps on the inner side 4 and the outer side 5 of the bottom plate of the packaging box 3 are bent and fixed with tape or staples to form the bottom surface of the packaging box 3. The outer flap 6 of the lid face plate of the packaging box 3 is provided with a tongue piece 9 which is inserted into a hole 8 formed in the inner flap 7, and after the inner flap 7 is bent, the outer flap 6 is bent. Then, the tongue piece 9 is attached to the hole 8 of the inner flap 7 to complete the packaging of the product.

In such a packaging box, the present invention will be described in further detail with reference to the exploded view of the packaging box of FIG. 2. A fold line 1 is formed near the tip of one inner flap 4a of the bottom plate of the packaging box 3.
Two 0s are provided, and a projection 11 is further provided at the tip. The other inner flap 4b of the bottom plate of the packaging box 3 is provided with a hole 12 into which the protrusion 11 is fitted. The packaging box 3 thus formed is bent at the front, rear, left and right lateral side plate portions 13 of the packaging box, and is adhered at the margin portion 14 or fixed by a staple or the like. Next, the inner flap 4 of the bottom plate is folded toward the inner surface of the packaging box, and is bent in accordance with the two folds 10 of the inner flap 4a, and the protrusion 11 is fitted into the hole 12 of the other inner flap 4b to have a triangular cross section. The cushioning member 15 is formed. afterwards,
The outer flap 5 of the bottom plate of the packaging box 3 is bent, and the joint portions of the left and right outer flaps 5 are fixed with a tape or a staple. A cushioning member 15 having a triangular cross-section is formed in a substantially central portion inside the bottom surface of the packaging box 3 thus formed. When the product 1 is stored in the packaging box 3, the cushioning member 1 is formed.
5 can support the substantially central part of the product 1.

When the shock-absorbing force is applied from the top or bottom of the packaging box containing the product, the bottom of the product 1 is supported on the line by the top of the cushioning member 15 having a triangular cross section formed in this way, and the center of the product in the packaging box. The shock given to the part or the bending stress in the central part of the product due to the shock absorbing material at the four corners of the product can be absorbed by the shock absorbing member 15 to prevent the product from being damaged.

As can be seen from the figure, the cushioning member 1
In order to form 5 in the substantially central portion of the bottom surface of the packaging box 3,
The length of the inner flap 4a on the bottom is made longer than the length of the other inner flap 4b so that the apex of the cushioning member 15 having a triangular cross section is formed in the central portion of the bottom of the packaging box. . Further, the hole 12 provided in the other inner flap 4b into which the protrusion 11 provided at the tip of the one inner flap 4a is fitted is provided on the outside of the other inner flap 4b as shown by the dotted line in FIG. It can also be formed by a slit 12 ′ cut from one side. These holes 12 and slits 12 'are hereinafter referred to as fitting parts.

Next, another embodiment will be described with reference to FIG.
The same parts as those in FIGS. 1 and 2 are designated by the same reference numerals and the description thereof will be omitted. Left and right inner flaps 4 on the bottom plate of the packaging box 3
a and 4b are engaged with each other by half, and a fold line 10 is provided in each half, and the protrusions 1 are provided at the tips of each other.
1, and a fitting portion 12 into which the protrusion 11 is fitted is provided in a portion of the inner flaps 4a and 4b where the fold is not provided. In this way, the left and right inner side flaps 4a, 4b are bent from the fold line 10, and the projection 11
Of the cushioning member 1 formed by the left and right inner side flaps 4a and 4b in half by fitting the two into the fitting portions 12 facing each other.
5, the pair of cushioning members 15 can be formed in the central portion of the bottom surface of the packaging box 3.

It should be noted that one of the cushioning members 15 in FIG. 3 is shown in an unassembled state to facilitate understanding of this embodiment.

With such a structure, since the cushioning member 15 is formed by the left and right inner flaps 4a and 4b of the bottom plate, for example, in the structure shown in FIG. 1 or FIG. When a shock is applied to the cushioning member 3, since the cushioning member 15 is formed of only one inner flap 4a, when a part of the cushioning member 15 is deformed without being able to withstand the impact, the deformation is caused. Although it may spread to the whole, as in this embodiment, the cushioning members 15 are separately formed by using the left and right inner side flaps 4a and 4b of the bottom plate substantially half each, and both cushioning members 15 are engaged with each other. Since the cushioning member 15 is formed as one body, even if one of the cushioning members 15 is deformed by an impact, the other cushioning member 15 is not deformed, and the product 1 stored in the packaging box 3 is supported. In protection That. If the support / protection portion required by the product 1 to be stored in the packaging box 3 is before or after the product 1, the cushioning member 15 is provided only on the one portion required by the product 1.
It is also possible to form the cushioning member 15 and not assemble the cushioning member 15 at an unnecessary portion of the cushioning member 15, so that the assembling work of the packaging box 3 can be simplified. Furthermore, by having such a configuration,
It can be used as the packaging box 3 for supporting and reinforcing a part of the product 1 and for supporting and reinforcing the entire product 1, and has an advantage that the configuration of the packaging box is not changed for each product.

Further, another embodiment will be described with reference to FIG. Folds are provided on the left and right inner flaps 4a, 4b of the bottom plate of the packaging box 3, and the projection 11 is provided at the tip of one flap 4b.
And the fitting portion 12 into which the projection is fitted is provided on the other flap 4a, and the projection 11 is fitted into the fitting portion 12 by bending from each of these folds, thereby forming the double buffer member 15. You can do it.

With such a structure, the two-row cushioning member 15 is formed, and the cushioning member 15 which is stronger and has a higher cushioning degree than the cushioning member 15 described in the above embodiment can be obtained.

In the above description of the respective embodiments, the cushioning member 15 is provided inside the bottom surface of the packaging box 3, but this cushioning member 15 can be similarly formed inside the lid surface of the packaging box 3. That is clear. Although not shown, for example, when the flap shape of the lid plate shown in FIGS. 1, 2 and 3 is adopted, a fold line is provided in the vicinity of one tip of the inner flap 7 of the lid plate, and a protrusion is formed at the tip. And a fitting portion into which the protrusion provided on the one inner flap 7 is fitted, is provided on the other side of the inner flap 7 on the lid surface, and the cushioning member is provided inside the lid surface in the same manner as described above. Can be formed. Although the cushioning member formed in this description has a direction orthogonal to that of the cushioning member provided inside the bottom surface. if,
If you want to form a cushioning member in the same direction as the inside of the bottom,
The shapes of the inner and outer flaps 6 and 7 of the lid face plate of the packaging box are exchanged, or the tongue piece 9 of the lid face plate and the hole 8 into which the tongue piece 9 is attached are eliminated and the entire shape is made the same as the bottom face plate. You can also do it.

By thus providing the cushioning member inside the lid surface and inside the bottom surface of the packaging box, the product accommodated in the packaging box is sandwiched between the cushioning members to more firmly support the product and protect it from an impact. You can

Further, in each of the above-mentioned embodiments, the buffer member 15 has a triangular cross section. However, in the case of the triangular shape, the product 1 contained in the packaging box 3 is lined on the apex of the triangular shape as described above. Although it will be supported, it is obvious that the buffer member 15 may have a rectangular cross-sectional shape if the shock applied to the product 1 is to be widely dispersed. Further, it is obvious that the buffer portion 15 material may have a semicircular cross section. In any case, when the buffer member 15 has a triangular cross section, the impact or stress applied to this buffer member is
Since it is supported by the two sides of the triangle, it is clear that the shock-absorbing capacity is higher than that of the rectangular cross section and the semi-circular shape. You can choose.

As described above, the cushioning member formed by one or both of the lid plate of the packaging box and the inner flap of the bottom plate facilitates the support and reinforcement of the top or bottom surface of the product to be stored in the packaging box. Become. In addition, it is clear that the cushioning member formed by the inner flap of the packaging box can set the bent portion of the inner flap to a place where the product should be protected and the product should be protected from the impact from the outside. It goes without saying that the height of the member is dimensioned so as to perfectly fit the gap between the bottom surface of the packaging box and the bottom surface of the product to be stored.

It should be noted that, in order to facilitate understanding of the cushioning member of the present invention, it is clear that the inner and outer flaps on one side of the lid surface of the packaging box are omitted in the explanatory views of the above embodiment.

[0025]

As described above, the present invention uses the same material as the packaging box, and folds are formed in a part of the inner flap of the integrally formed packaging box. By simply fitting the protrusion provided at the tip of the flap, it is possible to form a shock-absorbing member that has good work efficiency, is simple, and has a high degree of shock absorption.

Further, it is easy to provide a cushioning member at a desired position of the product to be stored in the packaging box, and a plurality of cushioning members can be formed according to the required cushioning degree, and the sectional shape of the cushioning member can be selected. .

As a result, a special work for forming or attaching a cushioning member at a place other than the four corners of the product becomes unnecessary, and it is possible to provide a packaging box having a cushioning function which is preferable from the viewpoint of the environment and waste.

[Brief description of drawings]

FIG. 1 is a perspective view of a packaging box of the present invention.

FIG. 2 is a development view of the packaging box of the present invention.

FIG. 3 is a perspective view and a partially enlarged view showing another embodiment of the packaging box of the present invention.

FIG. 4 is a perspective view showing still another example of the packaging box of the present invention.

FIG. 5 is a perspective view showing a structure of a conventional packaging box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Product 2 ... Product four-corner cushioning member 3 ... Exterior box 4 ... Bottom plate inner flap 5 ... Bottom plate outer flap 10 ... Fold 11 ... Protrusion 12 ... Fitting part 15 ... Buffer member

Claims (10)

[Claims] 1. Four side plates connected to each other at their sides, flaps extending in the vertical direction of the side plates, and flaps extending in the upward direction of each side plate and facing each other are respectively bent. In a packaging box for product packaging, which includes a lid face plate formed by forming a lid face plate and a bottom face plate that is formed by bending the facing flaps extending downward from each side face plate, a tip of an inner flap of the lid face plate or the bottom face plate. A cushioning member formed by bending the vicinity and a packaging box that supports the top surface or the bottom surface of the product housed by this cushioning member. 2. A fold line provided near the tip of one of the inner flaps of the lid plate or the bottom plate, a projection provided at the tip of the inner flap, and the other inner flap opposite to the one inner flap tip. From a fitting portion into which the projection portion provided is fitted, and a cushioning member formed by folding the projection portion into the fitting portion provided on the other inner flap by bending along the fold line near the tip of the one inner flap. The packaging box according to claim 1, which comprises: 3. A buffer member having a triangular cross section, a rectangular cross section, or a semicircular cross section by bending a plurality of folds near the tip of one of the inner flaps of the lid plate or the bottom plate. The packaging box described in 1 and 2. 4. A fold line provided in the vicinity of the front ends of both inner side flaps of the cover plate or the bottom plate facing each other; 4. The packaging box according to claim 1 or 3, wherein a plurality of cushioning members each including a fitting portion into which the protrusion is fitted are provided on at least one of both inner side flaps. 5. A fold line provided in the vicinity of the tip of each of the inner flaps of the lid plate or the bottom plate facing each other, and a fold line provided in the vicinity of the tip of each of the both inner flaps, and a fold line of the fold line of the both inner flaps. A protrusion and a fitting portion for fitting the protrusion into the unfolded portion of the inner flaps facing the protrusion, and the cushioning members formed by the inner flaps mesh with each other to form a pair of cushioning members. The packaging box according to claim 1, 3, or 4. 6. The packaging box according to claim 1, 2, 3, 4 or 5, wherein the cushioning member formed by the inner flap of the lid plate or the bottom plate is formed only in a portion requiring support and reinforcement of the product. . 7. A cushioning member is formed only on the lid plate, only the bottom plate, or both the lid plate and the bottom plate.
The packaging box according to 2, 3, 4, 5 or 6. 8. The size of the inner flap for bending the inner flap of one of the lid plate and the bottom plate to form a cushioning member,
The cushioning member is formed in a substantially central portion of the packaging box by making the flap longer than a dimension of the other inner flap or the outer flap that is not folded. Packaging box. 9. Four side plates connected to each other at their sides,
The flaps provided by extending the side plates in the vertical direction, the lid face plate formed by bending the facing flaps of the side plates facing each other and facing each other, and the flap face plates extending by the bottom direction of the side plates and facing each other. A bottom plate formed by bending each flap, a plurality of folds provided near the tip of one inner flap of the lid plate or the bottom plate, a protrusion provided at the tip of the flap provided with the fold, and this protrusion And a fitting portion in which the protrusion is fitted to the other inner flap facing the other flap, the flap is bent from a fold near the tip of one of the inner flaps of the lid plate or the bottom plate, and the protrusion of the flap tip is formed. A method of assembling a packaging box in which the above-mentioned is fitted into a fitting portion provided on the other inner flap to use as a cushioning member. 10. The first to fourth parts formed by dividing the side plate regions provided in the middle part by folding lines parallel to each other.
Side plate, a margin portion continuously formed integrally with a single side plate of the first to fourth side plates, and folded to one edge side of each of the first to fourth side plates. First to fourth flaps of a lid face plate integrally formed so as to extend each side plate through a curved line, wherein a connecting portion and a non-connecting portion that allow adjacent flaps to be connected to each other are formed. The first to fourth flaps of the lid plate, and the first to fourth flaps of the bottom plate integrally formed on the other edge side of the first to fourth side plates so as to extend the respective side plates through folding curves. First to fourth flaps, an extension portion formed at one end of one of the first and third flaps or the second and fourth flaps that are not adjacent to each other, and the flap including the extension portion A plurality of folding curves that can be bent, and the first and third The first to the first of the bottom plates, each of which is formed on the other of the flaps or the other of the second and fourth flaps and has a holding portion which engages with the bent extension portion and holds the bent state. Packaging box consisting of 4 flaps.