JP3056639B2 - Packaging box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box used for storing goods which are sensitive to vibration and shock.

[0002]

2. Description of the Related Art Conventionally, when carrying goods which are sensitive to vibrations and shocks, a cushioning material made of a material such as styrene foam having an appropriate elasticity is fitted to a corner or an end of the goods. In this state, a packaging form in which the package is stored in an outer box is employed.

However, since cushioning materials for packaging made of styrene foam or the like cause pollution during disposal after use, their use has been shunned as the environmental destruction problem has recently become more serious. is there.

[0004] Further, since the packaging cushioning material and the outer box are formed separately, it cannot be said that it is preferable in terms of efficiency of the packaging operation.

[0005]

SUMMARY OF THE INVENTION Therefore, the present invention
A packaging box that has the same excellent cushioning function as a conventional packaging cushioning material made of styrofoam and the like, and has little adverse effect on the environment during disposal after use, and can improve the efficiency of packaging work. The task is to provide.

[0006]

In order to solve the above-mentioned problems, according to the present invention, an inner bottom plate is continuously provided at a lower end of an opposing side wall of a rectangular cylinder, and a space is provided at a tip of each inner bottom plate. The erecting plates to be erected are connected in series, and a slit is provided at the center of each inner bottom plate, a slit extending from the base end to the distal end, and an insertion hole provided at the center of each erecting plate are continuously formed. At the lower end of the opposed end wall of the quadrangular cylindrical body, an outer bottom plate circumscribing each inner bottom plate and abutting each other is continuously provided, and a buffer plate is continuously provided at the tip of each outer bottom plate via a bent curve, Both ends of each buffer plate are inserted into the insertion holes through the slits, and each buffer plate is brought into contact with the peripheral edge of the insertion hole, so that both upright portions are set up.
Empty between the board and both side walls, and between
The configuration that forms a product holding space having a space is adopted.

[0007]

In the packaging box constructed as described above, each buffer plate inserted into the box is applied to the peripheral edge of the insertion hole provided at the center of both upright plates standing on both sides of the box. When opened until they touch each other, a product holding space is formed between both buffer plates.

When a product is stored in the product holding space, the load of the product is applied, so that each buffer plate is trying to spread further outward and comes into contact with the periphery of the insertion hole more strongly. As a result, the upright plates are pushed down by the respective buffer plates, and the contact state between the inner bottom plate and the outer bottom plate is further strengthened.

Further, since a space is also formed between the upright plates and both side walls and between both the buffer plates and both end walls, an external impact is not directly transmitted to the product.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a packaging box according to the present invention will be described below with reference to FIGS.

The packaging box shown in FIG. 1 has a pair of side walls 2a, 2a.
b and a pair of end walls 3a, 3b, and has a rectangular cylindrical body 1 having a closed bottom, and an upright plate 4 and a buffer plate 5 inside.
And

A top plate member 6a, 6b is connected to an upper end of each of the side walls 2a, 2b, and lid flaps 7a, 7b are connected to an upper end of each of the end walls 3a, 3b.

This packaging box is assembled from the blank shown in FIG.

End wall 3a, side wall 2b, end wall 3b, side wall 2a
Are successively provided via each of the folding curves 8, 9, and 11, and a side margin of the end wall 3a is continuously provided with an adhesive margin 13 via a folding curve 12.

At the lower ends of both side walls 2a, 2b, a folding curve 14 is provided.
The inner bottom plate 15 is continuously provided via the inner bottom plate 15, and the upright plate 4 is continuously provided at the tip of each inner bottom plate 15 via a bent curve 16.

A slit 17 extending from the base end to the distal end is provided at the center of each inner bottom plate 15, and a fan-shaped insertion hole 18 continuous with the slit 17 is provided at the center of each of the upright plates 4. .

The upright plate 4 connected to the lower end of the side wall 2a
Notches 19a, 19b,
21 are formed respectively. As described later, when the adhesive margin piece 13 is fixed to the side edge of the side wall 2a,
Since each folding curve 14 is bent in advance and each inner bottom plate 15 and each upright plate 4 are overlapped on the side walls 2a and 2b,
This is provided to prevent the upright plate 4 from being fixed together.

On the other hand, at the lower ends of the side walls 3a and 3b, an outer bottom plate 23 circumscribing the inner bottom plate 15 through a fold curve 22 is provided.
The buffer plate 5 is connected to the tip of each outer bottom plate 23 via a fold curve 24. At both ends of each buffer plate 5, locking slits 25 are provided.

This blank is assembled as follows.

First, the folding curve 14 is bent so that each inner bottom plate 15 and each upright plate 4 are overlapped with the side walls 2a and 2b, respectively, and then the folding curves 8 and 11 are bent.
The adhesive margin piece 13 is fixed to one side of the side wall 2a. In this case, the blank has a form as shown in FIG. When shipping this packaging box, since it is shipped in this form, the bulk of one packaging box can be reduced, a large amount of packaging boxes can be transported at a time, and it is convenient in terms of storage. is there.

Next, when the folding curves 9 and 12 are bent to form the rectangular cylinder 1 and the folding curve 16 is folded, each of the upright plates 4 is attached to the tip of each of the inner bottom plates 15 inside the rectangular cylinder 1.
Stand up at intervals.

Each buffer plate 5 is connected to the slit 1 from the tip side.
7 and inserted into the insertion hole 18 to form the locking slit 25.
To the upper end of the upright plate 4. This way,
The upright state of each upright plate 4 is maintained, and the outer bottom plate 23 contacts the outside of the inner bottom plate 15 to assemble the packaging box shown in FIG.

In this state, each buffer plate 5 is inserted into the insertion hole 18.
When it is opened until it comes into contact with the peripheral edge of the product, a product holding space is formed between both buffer plates 5 (see FIG. 4).

When a product is stored in the product holding space, the load of the product is applied, so that each buffer plate 5 tries to spread further outward and comes into more abutment with the periphery of the insertion hole 18. As a result, the upright plates 4 are pushed down by the respective buffer plates 5, and the contact state between the inner bottom plate 15 and the outer bottom plate 23 becomes stronger.

At this time, as shown in FIG.
And between the end walls 3a and 3b,
Even if an external impact is applied to each of the end walls 3a and 3b, the impact is not directly transmitted to the product.

As shown in FIG. 5, since a space is also formed between the upright plates 4 and the side walls 2a and 2b, even if an external impact is applied to each of the side walls 2a and 2b, the impact is not applied. Not directly transmitted to the product.

Further, in the first embodiment, since the insertion holes 18 provided in the upright plates 4 have a fan shape, each buffer plate 5 is formed in a V-shape as shown in FIG. When opened, the product is stored without contacting the outer bottom plate 23. Therefore, even if an impact is applied from the bottom during transportation, the impact is not directly transmitted to the product.

When the top plate members 6a and 6b are formed as shown in FIG. 1 and are accommodated in the rectangular cylindrical body 1 to hold the product and the lid flaps 7a and 7b close the top surface, the product rises. Can be prevented.

In this embodiment, the upright state of the upright plate 4 is maintained by engaging the locking slit 25 provided in the buffer plate 5 with the upper end of the upright plate 4.
As a method for maintaining the upright state of the upright plate 4, there is a method in a packaging box shown in FIG.

That is, in the packaging box according to the second embodiment, the locking tongue 26 protruding from the tip of the upright plate 4 is bent so as to correspond to the side walls 2a and 2b. By inserting the upright plate 4 into the hole 27, the upright state of the upright plate 4 is maintained. At this time, as shown in FIG. 6, if step portions 28 are formed at both ends of the tip end of each buffer plate 5, the upright plate 4 does not fall inward until a product is stored.

[0031]

The packaging box constructed as described above has a space between both side walls and both upright plates and between both side walls and both buffer plates. It can be prevented from being directly transmitted to the product, and can exhibit an excellent cushioning function.

Further, a packaging box in which a cushioning material for packaging is built can be manufactured by using a cardboard such as a cardboard. Therefore, it is not necessary to use a conventional cushioning material for packaging made of styrene foam or the like and formed separately, which can not only reduce the adverse effect on the environment at the time of disposal after use, but also reduce the packaging work. Efficiency can also be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a development view of the above.

FIG. 3 is a plan view of the same folding state.

FIG. 4 is a longitudinal sectional side view in a use state of the above.

FIG. 5 is a longitudinal sectional side view in a use state of the above.

FIG. 6 is a longitudinal sectional side view in a use state of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Square cylinder 2a, 2b Side wall 3a, 3b End wall 4 Standing plate 5 Buffer plate 5a Base of buffer plate 6a, 6b Top plate member 7a, 7b Lid flap 8, 9, 11, 12, 14, 16, 22, 24 Folding curve 13 Glue margin 15 Inner bottom plate 17 Slit 18, 31 Insertion hole 19a, 19b, 21 Notch 23 Outer bottom plate 25 Locking slit 26 Locking tongue 27 Locking hole 28 Step

Claims (1)

(57) [Claims] 1. An inner bottom plate is continuously provided at a lower end of a side wall of a rectangular cylindrical body, and an upright plate is provided at an end of each inner bottom plate at an interval, and is provided at a central portion of each inner bottom plate. Slits provided from the base end to the tip and an insertion hole provided in the center of each upright plate are formed continuously, and at the lower end of the opposed end wall of the rectangular cylinder, the inner bottom plate is formed. Outer bottom plates circumscribing and abutting each other are continuously provided, and buffer plates are continuously provided at the tips of the respective outer bottom plates via bent curves, and both ends of each buffer plate are inserted into the insertion holes through the slits. Then, each buffer plate is brought into contact with the periphery of the insertion hole, respectively, so that both the upright plate and both side walls, and both the buffer plate and both end walls are
Packaging box having a product holding space having a space therein.