JP2004149217A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a box strength without degrading a storage efficiency of a packaging box. <P>SOLUTION: This is a packaging box 10 having a tray 20 and a lid member 30. Multi-overlapping flaps 34. Multi-overlapped flaps 34 having extensions 33 of another lid flap 32 crossing at a right angle with the former lid flap 32 are folded into two or more segments are adhered along each of at least oppositely faced lid flaps 32 of the lid member 30 over an entire vertical length of the lid member 30, adhering pieces 23 are continuously arranged at outer edges of the side plates 22 of the tray 20, and the adhering pieces 23 can be adhered to the lid flap 32 of the lid member 30. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a packaging box for packing a resin-made bottle or a standing pouch filled with a detergent, food, or the like.
[0002]
[Prior art]
As a packaging box, a triangular prism-shaped reinforcing column is erected at the corner where the side plate intersects at the corner of the bottom plate of the box main body, and a portion sandwiched between the reinforcing columns on both sides on one side of the box main body as a display opening, There is one that covers an upper opening of a box body with a lid (Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent No.2973827 (page 1, page 4, FIG. 1)
[0004]
[Problems to be solved by the invention]
In the prior art, since a triangular prism constituting a reinforcing column is provided at a corner of the content accommodating space of the box main body, the content accommodating space of the box main body is narrowed, and the accommodation efficiency of the packaging box is poor.
[0005]
An object of the present invention is to improve box strength without lowering the storage efficiency of a packaging box.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, a tray having a side plate connected to an outer edge of a bottom plate and having an opening at an upper portion and a display opening formed on at least one side surface, and a lid flap connected to an outer edge of the lid plate. A lid plate covering an upper opening of the tray, and a lid flap having a lid closing a display opening of the tray, wherein at least each of the opposing lid flaps of the lid has A multiple flap portion obtained by folding the extension portion of another lid flap intersecting the lid flap into two or more folds is attached over the entire length in the height direction of the lid body, and a sticking piece is connected to the outer edge of the side plate of the tray. The attachment piece is attached to the lid flap of the lid.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment) (FIGS. 1-4)
In the packaging box 10, the lid 20 is put on the tray 20, and the tray 20 and the lid 30 are adhered and sealed with an adhesive such as glue (FIGS. 1 and 2). The tray 20 and the lid 30 are formed of a base sheet such as a cardboard sheet.
[0008]
In the unfolded state shown in FIG. 3 (A), the tray 20 has the short side plates 22 continuously connected to the entire front, rear, left and right outer edges of the rectangular bottom plate 21, and the sticking pieces 23 connected to the outer edges of each side plate 22. Glue pieces 24 are provided at both ends of the front and rear side plates 22 and 22 facing each other. The sticking piece 23 is preferably provided with a cutout 23A such as a perforation or a zipper at a joint with the outer edge of the side plate 22. FIG. 3A shows an example in which the sticking pieces 23 are provided on the front, rear, left and right side plates 22, and FIG. 3B shows the example in which the sticking pieces 23 are provided on the front and rear (up and down directions in FIG. 3B) side plates 22. This is an example.
[0009]
To assemble the tray 20, the side plates 22 are bent at right angles to the outer edge of the bottom plate 21 to be erected, and glued pieces 24 provided at both ends of the front and rear side plates 22, 22 are attached to the left and right side plates 22, 22 at both ends. The back surface is bonded with an adhesive.
[0010]
The tray 20 allows the bottom of contents such as bottles and standing pouches to be placed in the contents storage space 25 surrounded by all the side plates 22 on the bottom plate 21, and extends over a certain length range above the upper edge of each side plate 22. The side surface is referred to as a display opening 26, and the upper portion of the side surface which is the display opening 26 is referred to as an upper opening 27. In this embodiment, four rounds surrounding the content storage space 25 are used as the display openings 26.
[0011]
In the opened state shown in FIG. 4, the lid body 30 is provided with a lid flap 32 continuously connected to all front, rear, left and right outer edges of a rectangular lid plate 31 having substantially the same dimensions as the bottom plate 21 of the tray 20, and is provided with a front and rear (in FIG. (Extended direction)), extension portions 33, 33 are continuously provided over the entire length of the left and right side edges of each lid flap 32.
[0012]
The assembling of the lid 30 is performed by folding the extension 33 in two (or three or more) on both the left and right sides of the front and rear lid flaps 32 and folding the two folded extensions 33A and 33B via an adhesive. The multiple flaps 34 are formed. Next, each of the front and rear lid flaps 32 is bent at right angles to the outer edge of the lid plate 31 to stand up, and the multiple flap portions 34 are bent inward at right angles to the side edges of the front and rear lid flaps 32. The left and right lid flaps 32 are bent at right angles to the outer edge of the plate 31 to stand upright, and the back surfaces of the left and right lid flaps 32 are attached to the left and right multiple flap portions 34 via an adhesive.
[0013]
The multiple flap portion 34 has a full triple structure of one lid flap 32 and two extension portions 33A and 33B.
[0014]
The packaging box 10 covers the tray 30 with the contents stored in the content storage space 25 of the tray 20, and inserts the lid flap 32 of the lid 30 inside the side plate 22 of the tray 20. The upper opening 27 is covered by the plate 31, and the display opening 26 is closed by the lid flap 32. At this time, the lid 30 is provided with a multiple flap portion 34 attached to each of the opposing left and right lid flaps 32 over the entire length of the lid 30 in the height direction. When the lid 30 is placed on the tray 20, the lower end of the lid flap 32 projects downward to the bottom plate 21 behind the side plate 22 of the tray 20.
[0015]
When the lid 30 is put on the tray 20, each of the sticking pieces 23 is attached to the lower outer surface of the lid flap 32 of the lid 30 via an adhesive.
[0016]
At the time of opening the packaging box 10, the sticking piece 23 is peeled off from the lid flap 32 of the lid 30 while the cut 23 </ b> A provided at the joint between the sticking piece 23 of the tray 20 and the side plate 22 is opened. From the tray 20. At this time, the contents of the tray 20 are blocked by the side plate 22 to prevent the contents from falling out of the contents storage space 25.
[0017]
According to the present embodiment, the following operations are provided.
{Circle around (1)} On each of the left and right lid flaps 32 facing the lid 30 placed on the tray 20, the extension 33 of the other lid flap 32 before and after crossing the left and right lid flaps 32 is folded in two or more. By providing the multiple flaps 34 over the entire length of the lid 30 in the height direction, the strength of the box (compression strength in the height direction, bending strength in the horizontal direction) can be improved at the distribution stage in which the lid 30 is placed on the tray 20. improves. At this time, since the multiple flap portion 34 is flattened in a folded shape and is not of a triangular prism shape, the content accommodating space 25 of the tray 20 is not reduced, and the accommodation efficiency of the packaging box 10 is not reduced.
[0018]
{Circle around (2)} In the above {circle around (1)}, since the compressive strength in the height direction of the packaging boxes 10 is improved, the packaging boxes 10 do not buckle even when the packaging boxes 10 are stacked in multiple stages at the distribution stage. Further, the drop impact resistance of the packaging box 10 is also improved, and damage to the side plate 22 in which the display opening 26 of the tray 20 is formed can be prevented.
[0019]
{Circle around (3)} In the above {circle around (1)}, since the lateral bending strength of the packaging box 10 is improved, the drop impact resistance of the packaging box 10 is improved in the distribution stage, and the display opening 26 of the tray 20 is removed from the contents. When a load is applied to the formed side plate 22, it is possible to prevent the side plate 22 from being swollen or damaged.
[0020]
{Circle around (4)} Since the sticking piece 23 continuously attached to the outer edge of the side plate 22 of the tray 20 is stuck to the lid flap 32 of the lid 30, the perforation or the perforation provided at the joint between the sticking piece 23 and the side plate 22. The packaging box 10 can be quickly and easily opened simply by cutting the notch 23A such as a zipper and pulling out the lid 30 inserted into the tray 20.
[0021]
(5) Since the cover flap 32 of the cover 30 is inserted into the inside of the side plate 22 erected on the entire circumference of the bottom plate 21 of the tray 20, the cover opening between the cover flap 32 and the side plate 22 is viewed from the front. Since there is no gap in the box, dust can be easily prevented from entering the inside of the packaging box 10.
[0022]
{Circle over (6)} The tray 20 with the lid 30 removed of the storage box 10 in which the contents are stored has the display openings 26 on four circumferences surrounding the contents storage space 25, so that the contents can be stored in any direction and at any angle. It can be displayed easily.
[0023]
(2nd Embodiment) (FIGS. 5-8)
The difference between the packaging box 10 of the second embodiment and the packaging box 10 of the first embodiment is that, as shown in FIGS. 5 to 7, the total length of the left and right side edges of each of the lid flaps 32 before and after constituting the lid 30. Each extension 33 is folded in three, and a part of the extensions 33A and 33B is folded into a multiple flap 34 via an adhesive, and the extension 33C which is the remaining of each extension 33 is formed. Is a reinforcing flap portion 35 attached to the back surface of each of the front and rear lid flaps 32 via an adhesive.
[0024]
In the lid 30, each of the front and rear lid flaps 32 is bent at right angles to the outer edge of the lid plate 31 to stand up, and the multiple flap portions 34 are inwardly perpendicular to the side edges of the front and rear lid flaps 32. After bending, each of the left and right lid flaps 32 is bent at right angles to the outer edge of the lid plate 31 to stand up, and the back surfaces of the left and right lid flaps 32 are attached to the left and right multiple flap portions 34 via an adhesive.
[0025]
The multiple flap portion 34 has a full triple structure of one lid flap 32 and two extension portions 33A and 33B. The reinforcing flap portion 35 has a full double structure of one lid flap 32 and one extension portion 33C. Further, as shown in FIG. 8, the multiple flap portion 34 and the reinforcing flap portion 35 form an L-shaped cross section that is continuous with each other along the back surface of the lid flaps 32 at the back corners of the intersecting lid flaps 32. The pillar 36 extends over the entire length of the body 30 in the height direction.
[0026]
According to the present embodiment, the following operations are provided.
(1) Each of the left and right lid flaps 32 facing the lid 30 is provided with a multiple flap portion 34 extending over the entire length in the height direction of the lid 30, and the height of the lid 30 is provided on each of the front and rear lid flaps 32. A reinforcing flap portion 35 is provided over the entire length in the vertical direction, and the multiple flap portion 34 and the reinforcing flap portion 35 form an L-section column 36. Accordingly, the box strength (compressive strength in the height direction, bending strength in the horizontal direction) is further improved in the distribution stage in which the lid 30 is placed on the tray 20. At this time, the multiple flap portion 34 and the reinforcing flap portion 35 are flattened and attached to the lid flap 32, and the pillar 36 is provided at the back corner of the intersecting lid flap 32 so as to be along the back surface of the lid flap 32. Since it is not a triangular prism, the content storage space 25 of the tray 20 is not narrowed, and the storage efficiency of the packaging box 10 is not reduced.
[0027]
{Circle around (2)} In the above {circle around (1)}, since the compressive strength in the height direction of the packaging boxes 10 is further improved, even when the packaging boxes 10 are stacked in multiple stages at the distribution stage, the packaging boxes 10 do not buckle. Further, the drop impact resistance of the packaging box 10 is also improved, and damage to the side plate 22 in which the display opening 26 of the tray 20 is formed can be prevented.
[0028]
(3) In the above (1), since the lateral bending strength of the packaging box 10 is further improved, the drop impact resistance of the packaging box 10 is improved in the distribution stage, and the display opening 26 of the tray 20 is removed from the contents. When a load acts on the side plate 22 on which is formed, the swelling and breakage of the side plate 22 can be prevented.
[0029]
In the packaging box of the present invention, the display opening 26 may be formed on at least one side surface of the tray 20. A long side plate is erected on the side surface of the tray 20 where the display opening 26 is not formed.
[0030]
In the tray 20, the side plate 22 does not have to be provided on the entire outer edge of the bottom plate 21. When the side plate 22 is provided on the entire outer edge of the bottom plate 21, it is possible to prevent dust from entering the inside of the tray 20.
[0031]
In the lid 30, the multiple flap portions 34 may be attached to each of the front, rear, left, and right lid flaps 32.
[0032]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, box strength can be improved, without reducing the accommodation efficiency of a packaging box. In addition, the contents can be easily displayed while the contents are stored in the tray.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing an opened state of a packaging box according to a first embodiment.
FIG. 2 is a schematic diagram showing a closed state of a packaging box.
FIG. 3 is a development view of a tray.
FIG. 4 is a development view of a lid.
FIG. 5 is a schematic view showing a state in which a packaging box according to a second embodiment is opened;
FIG. 6 is a schematic diagram showing a closed state of the packaging box.
FIG. 7 is a developed view of a lid.
FIG. 8 is a cross-sectional view of the lid.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Packaging box 20 Tray 21 Bottom plate 22 Side plate 23 Sticking piece 25 Contents accommodation space 26 Display opening 27 Top opening 30 Cover 31 Cover plate 32 Cover flap 33 Extension part 34 Multiple flap parts 35 Reinforcement flap part

Claims (3)

A tray in which a side plate is continuously provided on an outer edge of the bottom plate, an upper portion is opened, and a display opening is formed on at least one side surface;
A packaging box comprising a lid flap connected to an outer edge of the lid plate, the lid plate covering an upper opening of the tray, and the lid flap having a lid closing a display opening of the tray,
At least each of the opposing lid flaps of the lid body is provided with a multiple flap portion which is formed by folding at least two extensions of the other lid flaps intersecting the lid flap and folding over the entire length in the height direction of the lid body. And
A packaging box, characterized in that a sticking piece is continuously connected to an outer edge of a side plate of a tray so that the sticking piece can be attached to a lid flap of a lid. A part of the extension part of the other lid flap is used as the multiple flap part, and the remaining part of the extension part is used as the reinforcement flap part. The packaging box according to claim 1, which is attached to a lid flap. 3. The packaging box according to claim 1, wherein a side plate is erected on an outer periphery of the entire circumference of the bottom plate of the tray, and a lid flap of the lid is inserted inside the side plate of the tray. 4.

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