JP2004099100A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve box strength without degrading storage efficiency of a packaging box. <P>SOLUTION: The packaging box 10 consists of a tray 20 and a lid 30. Reinforced side plates 25 having extensions 24 of both side plates 22 folded are provided over a full length of the height of the tray 20 at both ends across a display opening 27 on a side face formed with the opening 27 of the tray 20. Reinforced flaps 35 having extensions 34 of a lid flap 32 folded on the flap 32 are provided over a full length of the height of the lid 30 at both ends of the lid flap 32 for closing the display opening 27 of the lid 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]
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 the upper opening of the tray, and a lid flap having a lid closing the display opening of the tray, wherein the display on the side surface on which the display opening of the tray is formed. Reinforced side plate portions obtained by folding extension portions of the side plates are provided at both ends of the cover opening over the entire length in the height direction of the tray. A reinforcing flap is provided over the entire length of the lid in a height direction by folding an extension of the flap over the lid flap.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
(1st Embodiment) (FIGS. 1-5)
The packaging box 10 has a lid 30 placed on the tray 20, and the lid 30 is adhered to the tray 20 with an adhesive such as glue and sealed (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, the tray 20 has long side plates 22, 22 opposed to each other on the left and right outer edges of a rectangular bottom plate 21, and is opposed to the front and rear (up and down in FIG. 3) outer edges of the bottom plate 21. The short side plates 23, 23 facing each other are continuously provided, and the extended portions 24, 24 are continuously provided along the entire length of the front and rear (up and down in FIG. 3) side edges of each side plate 22. The height A of the side plate 23 and the height B of the extension portion 24 are made equal, and the outline of the spread sheet on the tray 20 is made rectangular to improve the yield of the spread sheet.
[0009]
The assembling of the tray 20 is performed by folding the extension portion 24 in two on both sides (up and down in FIG. 3) of each long side plate 22 (three or more folds are also possible), and applying the adhesive to the folded two extension portions 24A and 24B. The reinforcing side plate portion 25 folded over is formed. Next, each of the two long side plates 22 is bent at a right angle to the outer edge of the bottom plate 21 to stand up, and the reinforcing side plate portion 25 is bent inward at a right angle to the side edge of each long side plate 22. Each of the short side plates 23 is bent at a right angle to the outer edge to be erected, and the left and right overhanging portions 23A, 23A of each short side plate 23 are adhered to the lower outer surfaces of the left and right reinforcing side plates 25 via an adhesive.
[0010]
The upper portion of the tray 20 sandwiched between the upper edges of the long side plates 22 is an upper opening 26, and a display opening 27 is formed on the front and rear side surfaces. The display opening 27 has a concave shape defined by the short side plate 23 and the left and right reinforcing side plate portions 25.
[0011]
The tray 20 has a reinforcing side plate portion 25 obtained by folding the extension portion 24 of the long side plate 22 on the left and right ends of the side surface on which the display opening 27 is formed, sandwiching the display opening 27, and a height of the tray 20. Provided over the entire length in the direction.
[0012]
The tray 20 forms a contents storage space 28 that can store contents such as bottles and standing pouches.
[0013]
The cover body 30 is provided with opposing cover flaps 32 on the front and rear (up and down in FIG. 4) outer edges of a rectangular cover plate 31 having substantially the same dimensions as the bottom plate 21 of the tray 20 in the unfolded state shown in FIG. The sticking pieces 33 facing each other are continuously provided on the left and right outer edges of the lid plate 31, and the extension portions 34, 34 are continuously provided on the entire length of the left and right side edges of each lid flap 32. The width (length in the left-right direction in FIG. 4) of the lid flap 32 connected to the front and rear (up and down in FIG. 4) outer edges of the cover plate 31 is smaller than the entire width of the front and rear outer edges of the cover plate 31. The height of the lid flap 32 (the length in the vertical direction in FIG. 4) is equal to the height of the long side plate 22 of the tray 20. The attachment piece 33 is preferably provided with a cut 33A such as a perforation or a zipper at a connection portion with the outer edge of the lid plate 31. The total length of the width of the lid flap 32 and the width of the extension portions 34 and 34 on both sides thereof is equal to the total length of the width of the lid plate 31 and the width of the sticking pieces 33 on both sides thereof. Is made rectangular to improve the yield of the developed sheet.
[0014]
To assemble the lid 30, the left and right extending portions 34 are bent to the rear side of the lid flap 32 (the rear side in the assembled state of the lid 30) on both left and right sides of each lid flap 32 (in FIG. The extension 34 is folded on the upper side), and the reinforcing flap 35 is formed on the lid flap 32 via an adhesive. The reinforcing flap portion 35 may be configured to fold the extension portion 34 in two or more and fold it on the lid flap 32. Next, both the lid flaps 32 are bent at right angles to the outer edge of the lid plate 31 to be erected, and both the attachment pieces 33 are bent at right angles to the outer edge of the lid plate 31 to be erected.
[0015]
The packaging box 10 covers the tray 20 with the contents accommodated in the contents accommodating space 28 of the tray 20, so that the lid 30 of the lid 30 is placed on the same surface of the display opening 27 of the tray 20. With the flap 32 inserted and the display opening 27 closed and the reinforcing flap portion 35 of the lid 30 placed flush with the reinforcing side plate portion 25 of the tray 20, the upper opening 26 of the tray 20 is opened by the lid plate 31 of the lid 30. Cover. At this time, the cover 30 has reinforcing flaps 35 formed by folding the extension 34 of the cover flap 32 over both ends of the cover flap 32 that closes the display opening 27 over the entire length of the cover 30 in the height direction. Provide. When the upper opening 26 of the tray 20 is covered by the cover plate 31 of the cover body 30, the lower end of the cover flap 32 projects to the bottom plate 21 behind the short side plate 23 of the tray 20, and both ends of the cover flap 32 are displayed. The opening 27 is in contact with both sides of the display opening 27 and no gap is formed between the display opening 27 and both sides thereof.
[0016]
When the lid 30 is placed on the tray 20, the respective sticking pieces 33 are attached to the upper outer surfaces of the left and right long side plates 22 of the tray 20 via an adhesive.
[0017]
At the time of opening the packaging box 10, the cut piece 33 </ b> A provided at the joint of the stick piece 33 of the lid 30 and the cover plate 31 is cut open, and the stick piece 33 is peeled off from the long side plate 22 of the tray 20. The body 30 is pulled out of the tray 20. At this time, the contents of the tray 20 are blocked by the short side plates 23, and are prevented from falling out of the contents storage space 28.
[0018]
When the packaging box 10 is displayed at the store, the trays 20 with the cover 30 removed are stacked as shown in FIG.
[0019]
According to the present embodiment, the following operations are provided.
{Circle around (1)} (a) The reinforcing side plate portion 25 in which the extension portion 24 of the long side plate 22 is folded on both sides of the side of the tray 20 where the display opening 27 is formed, sandwiching the display opening 27, (B) a reinforcing flap portion in which an extension 34 of the lid flap 32 is folded over the lid flap 32 at both ends of the lid flap 32 for closing the display opening 27 of the lid 30 Since the cover 35 is provided over the entire length of the cover 30 in the height direction, the tray 20 having the display opening 27 formed therein is reinforced at the logistics stage in which the cover 30 is covered on the tray 20, and the box strength (height) is increased. Direction compressive strength, lateral bending strength). At this time, since both the reinforcing side plate portion 25 and the reinforcing flap portion 35 are flattened in a folded shape and are not of a triangular prism shape, the content storage space 28 of the tray 20 is not narrowed, and the storage efficiency of the packaging box 10 is reduced. Do not let.
[0020]
(2) Even in the display stage in which the lid 30 is removed from the tray 20, the box strength is improved without lowering the storage efficiency of the packaging box 10 as described in (a) above.
[0021]
(3) In the above (1) and (2), since the compressive strength in the height direction of the packaging box 10 is improved, even when the packaging boxes 10 are stacked in multiple stages in the distribution stage and the display stage, the seat of the packaging box 10 is Does not yield. Further, the drop impact resistance of the packaging box 10 is also improved, and damage to the side plate on which the display opening 27 of the tray 20 is formed can be prevented.
[0022]
(4) In the above (1) and (2), 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 stage, and the tray is removed from the contents. When a load is applied to the side plate on which the 20 display openings 27 are formed, the side plate can be prevented from bulging or being damaged.
[0023]
(5) Since the reinforcing flap 35 of the lid 30 is inserted into the same plane of the display opening 27 so as to be flush with the reinforcing side plate 25 of the tray 20, the reinforcing flap 35 is attached to the reinforcing side plate of the tray 20. The storage efficiency of the packaging box 10 is further improved since the storage box 25 does not enter the content storage space 28 side.
[0024]
{Circle around (6)} Since the sticking piece 33 continuously attached to the outer edge of the cover plate 31 of the cover 30 is stuck to the long side plate 22 of the tray 20, the sticking piece 33 is provided at the joint between the sticking piece 33 and the cover plate 31. The packaging box 10 can be quickly and easily opened simply by cutting the cutout 33A such as a perforation or a zipper and pulling out the lid 30 inserted into the tray 20.
[0025]
(2nd Embodiment) (FIGS. 6-8)
The difference between the packaging box 10A of the second embodiment and the packaging box 10 of the first embodiment is that the lid 30 of the packaging box 10 is replaced with a lid 30A. The difference between the lid 30A and the lid 30 is that, as shown in FIGS. 6 to 8, the width of each lid flap 32 (see FIG. 8) connected to the front and rear (up and down in FIG. 8) outer edges of the lid plate 31 in the lid 30A. In FIG. 8, the vertical length is equal to the entire width of the front and rear outer edges of the lid plate 31 (the height of the lid flap 32 (vertical length in FIG. 8) is the height of the long side plate 22 of the tray 20. And the extension 34 is provided continuously over the entire length of the left and right side edges of the lid flap 32. In the lid 30A, the left and right extensions 34 of each lid flap 32 are bent to the back side of the lid flap 32 to form a reinforcing flap 35 that is folded over the lid flap 32 with an adhesive. Is the same as
[0026]
The packaging box 10A closes the display opening 27 by inserting the lid flap 32 of the lid 30A inside the display opening 27 of the tray 20, and attaches the reinforcing flap 35 of the lid 30A to the reinforcing side plate 25 of the tray 20. The upper opening 26 of the tray 20 is covered by the cover plate 31 of the cover 30A in a state where the tray 20 is placed on the tray 20. At this time, the cover 30A is provided with reinforcing flaps 35 formed by folding the extension 34 of the cover flap 32 over both ends of the cover flap 32 closing the display opening 27 over the entire length of the cover 30A in the height direction. Provide. When the upper opening 26 of the tray 20 is covered by the cover plate 31 of the cover 30 </ b> A, the lower end of the cover flap 32 projects to the bottom plate 21 behind the short side plate 23 of the tray 20.
[0027]
According to the present embodiment, the following operations are provided in addition to the operations (1) to (4) and (6) described above in the first embodiment.
[0028]
Since the reinforcing flap portion 35 of the lid 30A is inserted into the inside of the display opening 27 so as to be placed inside the reinforcing side plate portion 25 of the tray 20, the reinforcing flap portion 35 and the reinforcing side plate are viewed from the front of the display opening 27. There is no gap between the package box 10A and the space 25, and dust can be easily prevented from entering the inside of the packaging box 10A.
[0029]
In the packaging box of the present invention, the display opening 27 may be formed on at least one side surface of the tray 20.
[0030]
【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.
[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 view showing a closed state of the packaging box of the first embodiment.
FIG. 3 is a development view of a tray.
FIG. 4 is a development view of a lid.
FIG. 5 is a schematic diagram showing a stacked state of a packaging box at a display stage.
FIG. 6 is a schematic diagram showing an opened state of a packaging box according to a second embodiment.
FIG. 7 is a schematic view showing a closed state of a packaging box according to a second embodiment.
FIG. 8 is a development view of a lid.
[Explanation of symbols]
10, 10A Packaging box 20 Tray 21 Bottom plate 22, 23 Side plate 24 Extension 25 Reinforcement side plate 26 Upper opening 27 Display opening 28 Contents storage space 30, 30A Lid 31 Lid 32 Lid flap 33 Sticking piece 34 Extension 35 Reinforcement flap

Claims (4)

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 both ends of the side of the tray where the display opening is formed, the reinforcing side plate portion obtained by folding up the extension of the side plate is provided over the entire height direction of the tray,
A packaging box comprising, at both ends of a lid flap that closes a display opening of a lid, a reinforcing flap portion formed by folding an extension of the lid flap over the lid flap, over the entire length of the lid in a height direction. 2. The packaging box according to claim 1, wherein a lid flap for closing the display opening of the lid is inserted into the same surface of the display opening of the tray, and the reinforcing flap portion of the lid is flush with the reinforcing side plate of the tray. . 2. The packaging box according to claim 1, wherein a lid flap for closing the display opening of the lid is inserted inside the display opening of the tray, and the reinforcing flap portion of the lid is arranged inside the reinforcing side plate portion of the tray. The packaging box according to any one of claims 1 to 3, wherein a sticking piece is continuously connected to an outer edge of the lid plate on which the lid flap is not provided, so that the sticking piece can be attached to a side plate of the tray.

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