JPH08301269A - Packaging box - Google Patents

Abstract

PURPOSE: To provide a packaging box which can protect goods stored therein against an impact or vibration imparted to the goods during transportation by producing an improved shock-absorbing effect, and which can be obtained at low cost without making the structure thereof complex and can be processed by an ordinary automatic packaging machine. CONSTITUTION: In a pair of left and right side flaps 5, each of the flaps has a width nearly equal to two times the width of an opening 2 and has a length which is within the length of the opening 2. And the side flap 5 can be folded into the inner side of a cover plate 3 in such a manner that the flap 5 is inwardly folded through a folding ruled line 6 provided near the center of the flap.

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 individually packaging products, and more particularly to a packaging box having a cushioning function for protecting products from vibration and shock during transportation.

[0002]

2. Description of the Related Art Conventionally, various products related to daily life such as cosmetics and office supplies are sold in a single box made of paper or synthetic resin. This single box is designed to be slightly larger than the product to be stored in order to make it easy to put in and take out the product and to allow a room for a manual and the like. Thus, the products stored in one box at the production site are packed in a plurality of corrugated cardboard boxes and the like and transported to a distribution center, a store, or the like.

However, when a product is stored in a single box that is designed to be larger than the product to be stored as described above, the product is swayed inside the box due to vibration and shock during transportation, and the contents are There was a problem of damage. That is, when the product to be stored is a solid cosmetic such as a foundation, the solid cosmetic may be cracked or cracked due to vibration or shock during transportation, which may result in a defective product leading to consumer complaints. Of. Therefore, in order to solve such a problem, a cushioning material is put between the box and the product, especially for products that are apt to be damaged. That is, as shown in FIGS. 5 and 6, one container (20) containing a solid cosmetic such as a foundation (2) is used.
When packaging with 1), a container (20) with a cushioning material (22) formed by foaming styrene paper or the like in a U shape.
It is carried out in such a way that it is housed in a single box (21) so as to cover it.

[0004]

However, when the U-shaped cushioning material (22) as described above is used,
There has been a problem that a strong portion and a weak portion are generated against an impact given from the outside, and there has been a problem that the cushioning effect is hardly exerted against the impact given to the weak portion. That is, as shown in FIG. 7, as shown by the thick arrows in the figure, the front portion, the rear portion, and the bottom portion of the U-shaped cushioning material (22) in the single box (21) are intervened. Although it has sufficient strength to withstand the impact given, the fact is that it is extremely weak against the impact given in the direction indicated by the thin arrow in the figure.

Therefore, in response to such problems, various proposals have been made regarding the structure of the box and the material and structure of the cushioning material which are resistant to external impacts. It was unavoidable that the structure of the material became complicated and the usual automatic packaging machine could not be processed, and the material cost and the processing cost were high.

The present invention has been made in view of the above-mentioned circumstances, and protects the products housed therein by providing an excellent cushioning effect against vibrations and shocks applied during transportation. It is an object of the present invention to provide a packaging box that can be obtained at low cost without complicating the structure and that can be automatically packaged by a normal automatic packaging machine.

[0007]

In order to achieve the above object, the packaging box of the present invention has the following construction. That is, the first packaging box of the present invention is a packaging box that includes a lid plate that covers the opening of the box body, and a pair of left and right side flaps that are folded inside the lid plate. Is provided with a length within the range of approximately twice the width dimension of the opening to the length dimension of the opening, and is folded back inward through the crease line at the approximate center thereof and is placed inside the lid plate. It is characterized by being folded.
The second packaging box is a packaging box including a lid plate that covers the opening of the box body and a pair of left and right side flaps that are folded inside the lid plate. It is formed in a trapezoidal shape with a triangular portion on at least one side that extends from the boundary with the main body, and the side flaps open with the triangular portion folded back to the outside by a crease line. It is characterized in that it is folded into the section.

[0008]

In the first packaging box of the present invention configured as described above, each of the pair of left and right side flaps is formed to have a length that is approximately twice or more the width dimension of the opening, and It is designed to be folded inside the lid plate in a state of being folded back inward at the center through a crease line. Therefore, when the product is housed inside the packaging box, the folded side flaps come into contact with the corners of the product due to the restoring force, and exert a spring action between the product and the cushioning effect. To play. And even if the length of the side flap is the longest, it is set so that it does not exceed the length dimension of the opening, so when folding it inward with the crease line provided in the approximate center, the side flaps on the left and right sides are A sufficient cushioning effect is exerted by allowing the respective restoring forces to sufficiently act and contacting the product without interfering with each other.

Further, in the second packaging box, each of the pair of left and right side flaps is formed in a trapezoidal shape having a triangular portion on at least one side, and the triangular portion is folded back to the outside by a crease line. In this state, the side flaps are folded into the opening. Therefore, if the side flaps are folded and the lid plate is closed by accommodating the products inside the packaging box, the side flaps will enter the inside of the box and come into contact with the products as much as the triangular portions are folded back. It stabilizes the product and protects the product from shocks.

[0010]

Embodiments of the packaging box of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the first packaging box of the present invention, and FIG. 2 is an enlarged view of the essential parts thereof. As shown in these figures, this packaging box comprises a paper box body (1) formed in a thin rectangular parallelepiped shape and a lid plate (3) for covering the upper and lower openings (2) of the box body (1). ), An insertion flap (4) extending from the lid plate (3), and a pair of left and right side flaps (5) that are folded inside the lid plate (3) when the lid plate (3) is applied. It is equipped with.

The pair of left and right side flaps (5) are
As shown in FIG. 2, the extension length (a) of the box body (1)
Is set to be approximately twice the width dimension (b) of the opening (2), and as shown by the two-dot chain line in the figure, through the crease line (6) provided substantially at the center in the longitudinal direction. It is designed to be folded inward.

FIG. 3 shows the product (7) inside the box body (1).
Shows the internal state of the box in which the side flap (5) that has been folded in the above manner is folded into the opening (2) of the box body (1) and the lid is closed by the lid plate (3). As shown in this figure, the side flaps (5) folded in two and folded inside the lid plate (3) contain the product (7) which is stored in an attempt to restore the original state from the folded state. It comes into contact with the corner portion (7a) of the above and exerts a spring action with the product (7). When a shock is applied from the outside of the box in this state, the box body (1)
The side flaps (5) located at the four inner corners of the cushion function as a buffer to prevent the impact from directly acting on the product (7).

It should be noted that the length (a) of the side flap (5) is such that it can be brought into contact with the product (7) in the box body (1) in a state of being folded in half and exhibit a sufficient spring action. Therefore, the length is set to be twice or more the width dimension (b) of the opening (2) and does not exceed the length dimension (c) (see FIG. 1) of the opening (2). To do. That is,
The normal side flap is formed so as to have a substantially square shape with a length approximating the width dimension of the opening, but this side flap (5) is folded in two and folded inside the box. At that time, the action of trying to restore surely abuts the product (7) inside the box, and the side flaps (5) on both left and right sides overlap on the opening (2) to interfere with each other's restoring action. In order to prevent this, the length dimension is set within the above range.

FIG. 4 shows an embodiment of the second packaging box of the present invention. This packaging box also has a paper box body (11) formed in a thin rectangular parallelepiped shape, a lid plate (13) for covering the upper and lower openings (12) of the box body (11), and this lid plate (1
3) is provided with an insertion flap (14) and a pair of left and right side flaps (15) that are folded inward when the cover plate (13) is closed.

The pair of left and right side flaps (15)
Is formed so as to gradually widen from the boundary with the box body (11), and as a result, a crease line (16) is formed on one side (the side opposite to the side where the lid plate is provided in this embodiment). It has a trapezoidal shape in which a triangular portion (15a) is formed.
Then, the triangular portion (15a) is folded back by the folding ruled line (16), and the side flap (15) is folded into the opening portion (12) in that state, so that the triangular shape as shown by the two-dot chain line in the figure. The side flap (15) is inserted into the inside of the box body (11) by an amount corresponding to the shape portion (15a). Then, by storing the product in this packaging box and folding the side flap (15) into the opening (12) as described above, the opening (12) is covered with the lid plate (13). The flap (15) comes into contact with the product, and a buffering action is provided to guard against external impacts from directly acting on the product.

In the embodiment of the second packaging box, an example in which the triangular portion (15a) is provided on one side of the side flap (15) (on the side opposite to the side where the lid plate is provided) is given. However, this may be formed on the side where the cover plate (13) is provided, or may be formed symmetrically on both sides. The size of the triangular portion (15a) is the size of the box body (1
It can be appropriately set according to the relationship between the internal volume of 1) and the size of the product.

Further, the first and second packaging boxes constructed as described above can also use the U-shaped cushioning material (22) as described above with reference to FIGS. 5 and 6. Is. When using this cushioning material (22) together,
The side flap on the bottom surface side where the cushioning material (22) intervenes may have a normal form not having the above-mentioned configuration, but it is preferably the side flap in the first or second packaging box. As a result, an excellent cushioning effect is exhibited in combination with the action of the cushioning material (22).

[0019]

As described above, in the first packaging box of the present invention, the side flap folded in half and folded inside the lid plate comes into contact with the corner of the product due to its restoring action. The spring effect is exerted between the product and the product and an excellent cushioning effect is achieved. Therefore, according to this packaging box, it is possible to prevent impacts and vibrations given from various directions during transportation and the like from directly acting on the product, and it is possible to solve the problem of product damage.

Further, in the second packaging box, the side flaps enter the inside of the box and come into contact with the product as much as the triangular portions provided on the side flaps are folded back, so that external impact or vibration is generated. By preventing the product from directly acting on the product, the problem of damage to the product is solved.

The packaging box of the present invention can be provided at a low cost without complicating the structure of the box main body or using a cushioning material with an elaborate material or structure. It is highly versatile and can be installed in an automatic packaging machine and can be widely applied as a packaging box for various products.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of a first packaging box of the present invention.

FIG. 2 is an explanatory diagram showing an enlarged main part of FIG.

FIG. 3 is an explanatory diagram showing an internal state of the packaging box according to the embodiment.

FIG. 4 is an external perspective view showing an embodiment of a second packaging box of the present invention.

FIG. 5 is an explanatory diagram showing an example of a conventional packaging box.

6 is an explanatory diagram showing an internal state of the packaging box shown in FIG.

FIG. 7 is an explanatory diagram for explaining the strength of impact strength of the packaging box shown in FIGS. 5 and 6;

[Explanation of symbols]

 1, 11 Box body 2, 12 Opening part 3, 13 Lid plate 5, 15 Side flap 6, 16 Folded ruled line

Claims (2)

[Claims] 1. A packaging box comprising a lid plate (3) for covering the opening (2) of the box body (1) and a pair of left and right side flaps (5) folded inside the lid plate (3). In the above, each of the pair of left and right side flaps (5) is provided with a length within a range of approximately twice the width dimension of the opening portion (2) to the length dimension of the opening portion (2), and at substantially the center thereof. The cover plate (3) in a state of being folded back inward through the creases (6)
A packaging box that is folded inside. 2. A packaging box comprising a lid plate (13) for covering the opening (12) of the box body (11) and a pair of left and right side flaps (15) folded inside the lid plate (13). In the above, each of the pair of left and right side flaps (15) is extended from the boundary with the box body (11) so as to gradually widen, and at least one side has a triangular portion (15a).
A packaging which is formed in a trapezoidal shape and has a side flap (15) folded inside the opening (12) in a state where the triangular portion (15a) is folded back by a folding ruled line (16). box.