JP6717170B2 - Packaging box - Google Patents

Description

The present invention relates to a packaging box.

Patent Document 1 describes a packaging box that is delivered from a company to a customer when the customer's hand (here, returned product) is returned to the company. This packaging box is used in the form of a small volume folded into a small volume when it is shipped from a company to a customer (in the case of an outbound trip), and when it is returned to the company from a customer (in the case of a return trip), the returned product is enclosed. In order to do so, it is deployed and used in a large capacity form.

JP, 2014-46982, A

In this type of packaging box, it is desired to improve workability so that it can be easily folded into a small-capacity form.

The present invention is to provide a packaging box capable of simplifying the labor of folding work.

A packaging box for solving the above-mentioned problems is a packaging box which is transformed into two forms of a small-capacity form and a large-capacity form, in which four side plates connected in the circumferential direction and a bottom side of each of the four side plates are provided. 1. A box body composed of a bottom plate connected via a lower ridge line, and a first side plate and a second side plate that face each other among the four side plates, and a first upper side on the upper side of the first side plate. A first upper plate and a second upper plate connected to the upper side of the second side plate are connected to each other via a tie line. The first upper plate is provided with a second upper ridge line parallel to the first upper ridge line on the tip side with respect to the first upper ridge line, and the second upper plate has an insertion piece at the tip portion. Prepare The four side plates include a second lower ridge line parallel to the first lower ridge line, and the first side plate is provided between the first upper ridge line and the second lower ridge line. It has an insertion hole into which the insertion piece is inserted. Of the four side plates, each of the opposing third side plates and fourth side plates other than the first side plate and the second side plate is arranged from both ends of the second lower ridge line in the third side plate and the fourth side plate. The folding bar extends so that the width thereof becomes narrower in the direction of the first upper barb. In the small capacity mode, the first upper plate is folded back so as to overlap with the inner surface of the first side plate through the second upper ridge line, and the tip portion of the first upper plate is folded to the second lower ridge. Located on the upper side of the line, the third side plate and the fourth side plate are folded toward the inside of the box main body through the folding bar line and the second lower bar line, and the first side plate and the second side plate are folded. A side plate is bent so as to overlap with the third side plate and the fourth side plate folded through the second lower ridge line, and a tip end portion of the second upper plate is bent along the second lower ridge line. Further, the insertion piece is located above the first side plate and the insertion piece is inserted into the insertion hole. In the large-capacity mode, the first side plate and the second side plate, and the third side plate and the fourth side plate are developed, and the first upper plate and the second upper plate are connected via the first upper ridge line. Can be folded.

According to the above structure, a small-capacity packaging box can be assembled simply by folding the first upper plate inside the box main body with the second upper ruled line and inserting the insertion piece into the insertion hole. Can be made more efficient.

In the packaging box, the insertion piece may be continuously connected to a tip end portion of the second upper plate via a cutoff line for the second upper plate.
According to the above configuration, it is possible to easily expand from the small-capacity form to the large-capacity form simply by cutting the insertion piece with the cutting line.

In the packaging box, in the small-capacity form, a folded-back portion obtained by folding back the first upper plate in the direction of the first side plate through the second upper ruled line includes the folded ruled line and the second lower ruled line. The third side plate and the fourth side plate that are folded in via the folding part located on the upper side and the second side plate that overlaps the folding part and is not inserted into the bag part. It may be good.

According to the above configuration, in the small-capacity mode, the folded-back portion obtained by folding back the first upper plate in the direction of the first side plate through the second upper ridge line is not inserted into the bag portion. Therefore, the folded portion is long, and the assembling work is easier than when the folded portion has to be inserted into the bag portion.

In the above-mentioned packaging box, in the small capacity mode, the tip portion of the first upper plate may be located along the second lower ridge line on the inner surface of the first side plate.
According to the above configuration, when the first side plate and the fourth side plate are bent along the second lower ridge line, the tip end portion of the first upper plate is used as a bending guide to easily bend in order to form a small capacity. it can.

In the above-mentioned packaging box, a lead line in which a ruled line and a broken line are alternately provided may be a ruled line provided with a through hole.
According to the above configuration, it can be easily transformed into a small-capacity form.

According to the present invention, it is possible to simplify the labor of folding work.

It is a figure showing the packaging box in one embodiment, and is a perspective view showing a small capacity state. It is a figure showing the packaging box in one embodiment, and is a perspective view showing a large capacity state. Development view of the packaging box. The perspective view which shows the state which the 1st upper board and the 2nd upper board were opened with respect to the box main body. The perspective view showing the state where the 1st upper board was folded up inside the 1st side board. The perspective view showing the state where the 3rd side board and the 4th side board are folded inward by a folding line. The perspective view which shows the state which cut out the insertion piece from the 2nd upper plate, when transforming from a small capacity form to a large capacity form.

An embodiment of the present invention will be described below.
As shown in FIG. 1, a packaging box 1 to which the present invention is applied is a corrugated cardboard box, which is folded into a thin box-shaped small-capacity state. Further, as shown in FIG. 2, the packaging box 1 is expanded from a small capacity form to a large capacity form. Such a packaging box 1 is used, for example, when returning what is in the customer's hand (returned product here) to the company. Specifically, this packaging box 1 is used in a small-capacity state when it is shipped from a company to a customer (in the case of an outbound trip), and when it is returned to the company from a customer (in the case of a return trip), the returned product is enclosed. In order to do so, it is developed and used in a large capacity form.

FIG. 3 is a development view of the packaging box 1 and shows the blank sheet 2 of the packaging box 1. The blank sheet 2 includes a first side plate 11, a second side plate 12, a third side plate 13, and a fourth side plate 14 that form the side surface of the box body 10. These side plates 11 to 14 are connected to each other in the circumferential direction in the order of the first side plate 11, the third side plate 13, the second side plate 12, and the fourth side plate 14 via vertical ridge lines 15. The vertical ridge lines 15 between the first side plate 11 and the third side plate 13 and the vertical ridge lines 15 between the second side plate 12 and the fourth side plate 14 are, for example, alternate ridge lines and break lines. A through line 18 is further provided on the inserted ruled line to facilitate bending. The first side plate 11 and the second side plate 12 are long plates facing each other, and the third side plate 13 and the fourth side plate 14 are short plates facing each other. The first side plate 11 is provided with a joint margin 16 on a side edge parallel to the vertical ridge line 15 via a ridge line 16a. For example, this ruled line is also a ruled line in which a through hole 18 is further provided on the lead ruled line. The joint margin 16 is joined to the fourth side plate 14 by joining means such as an adhesive, staples, or adhesive tape.

A first upper plate 21 is connected to the upper side of the first side plate 11 via a first upper ridge line 20. The first upper plate 21 is provided with a second upper ridge line 29 parallel to the first upper ridge line 20. The second upper ruled line 29 is provided between the first upper ruled line 20 and the center line CL extending in the horizontal direction through the center of the vertical dimension of the first upper plate 21, for example. A second upper plate 22 is connected to the upper side of the second side plate 12 via a first upper ridge line 20. The second upper plate 22 is a flap that is shorter than the first upper plate 21. The insertion piece 23 is connected to the central portion of the second upper plate 22 in the lateral direction. The insertion piece 23 projects from the tip of the second upper plate 22, and the base end of the insertion piece 23 is provided with a cutting line 24 such as a sewing rule. As an example, the insertion piece 23 is cut off from the cutoff line 24 when the state of the small capacity form is changed to the state of the large capacity form. At the base end of the insertion piece 23, locking portions 25 are provided at both ends of the cutoff line 24 by steps. The insertion piece 23 is inserted into the insertion hole 28 formed in the first side plate 11 between the first upper and second lower ridge lines 20 and 35. The locking portion 25 is locked at both ends of the insertion hole 28. The locking portion 25 allows the insertion piece 23 to be inserted into the insertion hole 28 and prevents the insertion piece 23 from coming out of the insertion hole 28 when assembled in a small amount state. ..

Upper flaps 26 and 27 are connected to the upper sides of the third side plate 13 and the fourth side plate 14. The upper flaps 26 and 27 are flaps that are shorter in the longitudinal direction than the first upper plate 21 and the second upper plate 22.

A first bottom plate 31 is connected to the bottom side of the first side plate 11 via a first lower ridge line 30. The tip portion of the first bottom plate 31 is provided with an engaging piece 31a at the center in the horizontal direction. A second bottom plate 32 is connected to the bottom of the second side plate 12 via a first lower ridge line 30. The tip of the second bottom plate 32 is provided with an engaging recess 32a at the center in the horizontal direction. The first bottom plate 31 and the second bottom plate 32 are outer flaps, and constitute the bottom surface of the box body 10 by engaging the engagement pieces 31a and the engagement recesses 32a. A third bottom plate 33 is connected to the bottom of the third side plate 13 via a first lower ridge line 30. A fourth bottom plate 34 is connected to the bottom of the fourth side plate 14 via a first lower ridge line 30. The third bottom plate 33 and the fourth bottom plate 34 are, for example, inner flaps. Further, the third bottom plate 33 and the fourth bottom plate 34 are butt flaps, and make the shape of the box body 10 difficult to be deformed in any of the small capacity form and the large capacity form. In addition, by using the butt flap, the inner surface becomes flat and the packaged contents are less likely to be damaged.

The first side plate 11, the second side plate 12, the third side plate 13, and the fourth side plate 14 include a second lower ridge line 35 parallel to the first lower ridge line 30. The second lower ridge line 35 is located closer to the first lower ridge line 30 than the first upper ridge line 20. The region between the first lower ridge line 30 and the second lower ridge line 35 constitutes a side surface in the small capacity configuration.

The third side plate 13 and the upper flap 26 connected to the third side plate 13 and the fourth side plate 14 and the upper flap 27 connected to the fourth side plate 14 are folded fold lines 36 for folding these inside the box body 10. Is equipped with. The folding ruled line 36 narrows in width from both ends of the second lower ruled line 35 in the third side plate 13 and the fourth side plate 14 toward the first upper ruled line 20, and the tip portions of the upper flaps 26, 27. Are separated by. In addition, the folding line 36 extends line-symmetrically with respect to the third side plate 13 and a center line extending in the vertical direction at the center of the third side plate 13 in the horizontal direction. That is, the two folding ridge lines 36 have an inverted V-shape that widens toward the second lower ridge line 35. The angle formed by the two fold-in fold lines 36 that are flared toward the second lower ridge line 35 is 45 degrees as an example. The folding ruled line 36 is, for example, a ruled line in which a ruled line and a broken line are alternately provided, and a through hole 19 is further provided to facilitate folding. A hole 17 is formed at the intersection of the folding ruled line 36, the second lower ruled line 35, and the vertical ruled line 15 at the portion where the sheets overlap to facilitate bending. A similar hole 17 is also formed at the intersection of the second lower ruled line 35 and the ruled line 16a.

Next, a method of assembling and using the packaging box 1 configured as above will be described.
First, the joint margin 16 is joined to the inner surface of the fourth side plate 14 by joining means to form an annular shape. Next, in order to form the bottom surface of the box body 10, the third bottom plate 33 and the fourth bottom plate 34 are bent inward from the first lower ridge line 30, and the first bottom plate 31 and the second bottom plate 32 are further folded to the first bottom plate. Fold inward from line 30. Then, the engagement piece 31a is engaged with the engagement recess 32a. As shown in FIG. 4, this constitutes the box body 10 in an open state in which the upper surface is not covered by the first upper plate 21 and the second upper plate 22.

As shown in FIG. 5, in order to fold the packaging box 1 into a small capacity state, the first upper plate 21 is folded back so as to overlap with the inner surface of the first side plate 11 via the second upper ridge line 29. Then, the tip portion of the first upper plate 21 is close to the second lower ridge line 35 and is located along the second lower ridge line 35 on the inner surface of the first side plate 11. Next, as shown in FIG. 6, the third side plate 13 and the fourth side plate 14 are folded inside the box main body 10 along the folding fold line 36 and the second lower ridge line 35 having an inverted V shape. Then, the bag portion 38 is formed between the folding part 37 located on the upper side of the third side plate 13 and the fourth side plate 14 and the second side plate 12 overlapping the folding part 37. The first side plate 11 and the second side plate 12 are bent from the second lower ridge line 35 toward the inside of the box body 10. The folded-back portion 39 obtained by folding back the first upper plate 21 in the direction of the first side plate 11 through the second upper ridge line 29 has a length that is not inserted into the bag portion 38. After that, the second upper plate 22 is positioned above the folded-back portion 39, the insertion piece 23 is inserted into the insertion hole 28, and the box body 10 is separated by the first upper plate 21 and the second upper plate 22. Locked closed. Thus, the packaging box 1 is in a state of small volume (see FIG. 1). The packaging box 1 in the small-capacity form is a thin box in which the region between the first lower ruler line 30 and the second lower ruler line 35 constitutes a side surface. Such a small-capacity packaging box 1 is used, for example, when a company ships to a customer (outward route).

When the customer receives the small-capacity packaging box 1, he or she returns what is at hand (here, the returned product) to the company. Therefore, the customer develops the packaging box 1 in the small capacity form into the large capacity packaging box 1 (see FIG. 2). In this case, first, the insertion piece 23 that has been inserted into the insertion hole 28 is cut off by the cut line 24. As a result, the lock of the second upper plate 22 is released. As shown in FIG. 7, the second upper plate 22 opens the upper surface of the box body 10, and then the first upper plate 21 is folded so as to overlap with the inner surface of the first side plate 11 and then moved to the outside of the box body 10. It is said to have been issued. Continuing with this, the first side plate 11 and the second side plate 12 have the second lower ridge line 35 opened outward, and the third side plate 13 and the fourth side plate have the folding fold line 36 and the second lower ridge line 35. Is opened. Thus, the entire first side plate 11 to the fourth side plate 14 are substantially flush with each other, and form the side surface of the box body 10. In this state, the box body 10 stores the items to be returned to the company. Thereafter, the upper flaps 26 and 27 are bent toward the inside of the box body 10 along the first upper ridge line 20. Then, the second upper plate 22 is bent toward the inside of the box body 10 along the first upper ruled line 20, and the first upper plate 21 is bent toward the inside of the box body 10 along the first upper ruled line 20. Here, either the first upper plate 21 or the second upper plate 22 may be on the upper side. Then, the tip end portion of the first upper plate 21 and the second upper plate 22 that are overlapped with each other are joined by the joining means 40 such as an adhesive tape (see FIG. 2 ). The joining means 40 may be a staple or the like. Then, the large-capacity packaging box 1 is shipped to the company.

As described above, according to the above embodiment, the following effects can be obtained.
(1) The first upper plate 21 is folded inside the box body 10 along the second upper ridge line 29, folded inside the box body 10 along the folding fold line 36 and the second lower ridge line 35, and the insertion piece 23 The small-capacity packaging box 1 can be assembled by simply inserting the plug into the insertion hole 28, and the assembling work can be made efficient.

(2) In the packaging box 1, the insertion piece 23 is cut off by the cutoff line 24, the third side plate 13 and the fourth side plate are opened by the folding ridge line 36 and the second lower ridge line 35, and the first by the second lower ridge line 35. By simply opening the side plate 11 and the second side plate 12, the small-capacity form can be easily expanded to the large-capacity form.
(3) In the small-capacity mode, the folded-back portion 39 obtained by folding back the first upper plate 21 in the direction of the first side plate 11 via the second upper ridge line 29 is not inserted into the bag portion 38. Therefore, the folded-back portion 39 is long, and the assembling work is easier than when the folded-back portion 39 has to be inserted into the bag portion 38.

(4) In the small-capacity mode, the tip portion of the first upper plate 21 is located on the inner surface of the first side plate 11 along the second lower ridge line 29. Therefore, when the first side plate 11 to the fourth side plate 14 are bent along the second lower ridge line 35 in order to obtain a small-capacity form, the tip of the first upper plate 21 can be used as a bending guide to easily bend. it can.
(5) Since the folding ruled line 36 is a ruled line in which a ruled line and a broken line are alternately provided, a through hole 19 is further provided to facilitate bending, so that the folded ruled line 36 can be easily transformed into a small-capacity form. it can.

The above-described embodiment can be modified and implemented as follows.
The structure of the folding score line 36 is not particularly limited, and may be, for example, a normal lead ruled line having no through hole, or a sewing machine ruled line instead of the lead ruled line. It may be a ruler line. Further, the configuration of the ruled lines other than the folding ruled line 36 is not particularly limited.

The tip of the first upper plate 21 may be separated from the second lower ridge line 35 on the inner surface of the first side plate 11.
In the small-capacity form, the folded-back portion 39 may have a length such that the folded-back portion 39 slightly fits in the bag portion 38, so that the work of inserting the folded-back portion 39 into the bag portion 38 is not complicated.
The insertion piece 23 does not have to be cut off from the second upper plate 22. The insertion piece 23 may be cut with scissors, a cutter, or the like, or may be cut by being broken by hand.

The upper flap 26 of the packaging box 1 may be omitted.
The bottom structure of the box body 10 is not particularly limited, and may not include the engagement structure of the engagement piece 31a and the engagement recess 32a. For example, a structure may be used in which the two inner flaps are opposed to each other and the two outer flaps are opposed to each other, and the abutting portions of the outer flaps are joined by a joining means.
The packaging box 1 may be made of cardboard instead of cardboard.

CL... center line, 1... packaging box, 2... blank sheet, 10... box body, 11... first side plate, 12... second side plate, 13... third side plate, 14... fourth side plate, 15... vertical ridge line, 16... Seam allowance, 16a... Grid line, 17... Hole, 18... Through hole, 19... Through hole, 20... First upper grid line, 21... First upper plate, 22... Second upper plate, 23... Insert Pieces, 24... Cutoff line, 25... Locking part, 26... Upper flap, 27... Upper flap, 28... Insert hole, 29... Second upper ridge line, 30... First lower ridge line, 31... First bottom plate, 31a... Engaging piece, 32... Second bottom plate, 32a... Engagement recess, 33... Third bottom plate, 34... Fourth bottom plate, 35... Second lower ridge line, 36... Folding ridge line, 37... Folding portion, 38 ... bag portion, 39... folded portion, 40... joining means.

Claims (5)

In a packaging box that transforms into two forms, a small capacity form and a large capacity form,
A box body constituted by four side plates connected in the circumferential direction and a bottom plate connected to the bottom side of each of the four side plates via a first lower ridge line;
Out of the four side plates, a first side plate and a second side plate facing each other, the first side plate and the second side plate being connected to the upper side of the first side plate through a first upper ridge line. and a second upper plate that is continuous contact,
The first upper plate includes a second upper ridge line parallel to the first upper ridge line on the tip side of the first upper ridge line,
The second upper plate is provided with an insertion piece at the tip,
The four side plates include a second lower ridge line parallel to the first lower ridge line,
The first side plate includes an insertion hole into which the insertion piece is inserted, between the first upper ridge line and the second lower ridge line,
Of the four side plates, each of the opposing third side plates and fourth side plates other than the first side plate and the second side plate is arranged from both ends of the second lower ridge line in the third side plate and the fourth side plate. A folding bar extending so that the width thereof becomes narrower in the direction of the first upper barb;
In the small capacity mode, the first upper plate is folded back so as to overlap with the inner surface of the first side plate through the second upper ridge line, and the tip portion of the first upper plate is folded to the second lower ridge. Located on the upper side of the line, the third side plate and the fourth side plate are folded toward the inside of the box main body through the folding bar line and the second lower bar line, and the first side plate and the second side plate are folded. A side plate is bent so as to overlap with the third side plate and the fourth side plate folded through the second lower ridge line, and a tip end portion of the second upper plate is bent along the second lower ridge line. Positioned above the first side plate, the insertion piece is inserted into the insertion hole, and
The folded-back portion obtained by folding back the first upper plate in the direction of the first side plate through the second upper ridge is
A folding part located on the upper side of the third side plate and the fourth side plate folded through the folding ridge line and the second lower ridge line, and the second side plate overlapping on the folding part. It is a length that is not inserted into the bag part configured between
In the large-capacity mode, the first side plate and the second side plate, and the third side plate and the fourth side plate are developed, and the first upper plate and the second upper plate are connected via the first upper ridge line. A foldable packaging box. The four side plates are connected to each other through vertical ridges,
A hole is formed at the intersection of the folded ridge line, the second lower ridge line, and the vertical ridge line.
The packaging box according to claim 1. The difference Komihen the packaging box according to claim 1 or 2 is communicated against the distal end portion of the second upper plate via a tear line for the second upper plate. The said small capacity|capacitance form WHEREIN: The front-end|tip part of the said 1st upper plate is located in the inner surface of the said 1st side plate along the said 2nd lower ridge, It is any one of Claim 1 thru|or 3. Packaging box. The four side plates are connected to each other through vertical ridges,
At least one of said folding fold line and said vertical ridge line is a ridge line in which a through hole is provided on a lead ruled line in which ridge lines and cutting lines are alternately provided. Packaging box.