JP3073648U - Packaging box - Google Patents

Abstract

(57) [Summary] In a case where a space is formed between an object stored inside a box and an inner flap, the inner flap is bent through two folds to be vertical. By forming a wall portion and a folded portion, the folded portion supports the upper part of the object to be stored and can prevent rattling, and the vertical wall portion provides a load-bearing strength from above the box. An object of the present invention is to provide a packaging box which can be improved and which does not cause any increase in the number of parts due to a structure in which a vertical wall portion and a folded portion are provided on an existing inner flap. SOLUTION: Four side plates 1, 2, 3, 4 are creased a, b,
c, and the side plates 2 and 4 facing each other during assembly.
An inner flap 13 is connected to the upper part via a fold, and an outer flap 10 is connected to the upper part of the other side plates 1 and 3 facing each other at the time of assembly via a fold i. On the flap 13, two folds m and n parallel to the fold k on the upper side plates 2 and 4 are formed separately, and the inner flap 13 has a vertical wall portion 15 and a folded portion following the vertical wall portion 15. 16 are formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a packaging box for storing objects such as paper, documents, articles, and products.

[0002]

[Prior art]

 Conventionally, the above-mentioned packaging box is generally formed of corrugated cardboard or cardboard, and it has been required to secure such a packaging box without using staples or other fasteners. For this reason, for example, a packaging box described in Japanese Utility Model Laid-Open No. 6-8214 has already been devised.

That is, four side plates are connected via a vertical fold, and an inner flap is connected via a horizontal fold to an upper portion of one of the two side plates facing each other during assembly. The outer flaps are connected to the upper parts of the other two side plates via lateral folds, and the two outer flaps are provided with a folded portion so that a gap is formed when the outer flaps are folded. A cut-and-raised piece is formed between one side plate and a part of the inner flap, and the upper opening of the packaging box assembled into a square tube with a bottom is first closed with a pair of inner flaps. The folded outer flap is folded over the inner flap, and a cut-and-raised piece is inserted into the gap at the folded portion of the outer flap so that the pair of outer flaps cannot be opened. It stops.

According to this conventional packaging box, the configuration of the folded portion of the outer flap and the cut-and-raised piece can maintain the box in a sealed state without using a stopper such as supple. There is.

However, this conventional packaging box has the following problems. In other words, if the storage height of the items stored inside the box is low and a space is formed between the items to be stored and the inner flap, when the packaging box is moved, However, there is a problem that not only is the vertical play, but also the load resistance from above the packaging box is reduced due to the space.

[0006]

[Problems to be solved by the invention]

 This invention is based on the idea that, when a space is formed between the object stored inside the box and the inner flap, the inner flap is folded through two folds and the vertical wall is folded. And the folded portion supports the upper part of the object to be stored to prevent rattling, and the vertical wall improves the load-bearing strength from above the box. Further, it is an object of the present invention to provide a packaging box which does not increase the number of parts by using a structure in which a vertical wall portion and a folded portion are provided on an existing inner flap.

[0007] This invention also provides a plurality of tongues housed inside the box by forming tongues through cuts at the folds between the vertical wall portion and the folded portion so as to extend downward during assembly. An object of the present invention is to provide a packaging box in which the tongue pieces can be inserted between the storage portions to prevent the storage items from moving in the lateral direction.

Another object of the present invention is to provide a packaging box capable of improving the portability of the box by providing a handle portion on the side plate through a cut. This invention further provides reinforcing means on at least one side plate inner surface in the vicinity of the above-mentioned handle part, thereby improving the degree of reinforcement with the reinforcing means while securing the appearance, and forming the box using the handle part. The purpose is to provide packaging boxes that will not be damaged even when lifted.

[0009] According to the present invention, furthermore, by forming the reinforcing means with an adhesive tape, the reinforcing means can be easily provided on the inner surface of the side plate, and furthermore, the inner volume of the box does not decrease and the box can be stored. An object of the present invention is to provide a packaging box in which the object to be stored is not caught on the adhesive tape when the object is taken in and out.

[0010]

[Means for Solving the Problems]

 In the packaging box according to the present invention, four side plates are connected via a fold, and an inner flap is connected via a fold to an upper portion of one side plate facing at the time of assembly, and the other side plate facing at the time of assembly. An upper flap is connected to an outer flap via a fold. The inner flap is formed with two folds parallel to the upper fold of the side plate and is separated from the inner flap by a vertical wall. And a folded portion following the vertical wall portion.

According to the above configuration, in a case where a space is formed between an object stored inside the packaging box and the inner flap, the inner flap is folded through the two folds. When bent, a vertical wall part in the vertical direction and a folded part in the horizontal direction are formed, so that the folded part following the vertical wall part can support the upper part of the storage object, and as a result, It is possible to prevent the stored object in the box from rattling in the vertical direction when moving or the like. Further, since the formation of the vertical wall portion improves the load-bearing strength from above the box, the deformation of the box can be prevented even when the packaging boxes are stacked.

Further, since the vertical wall portion and the folded portion are formed by forming two parallel folds apart from the existing inner flap, the number of parts does not increase at all. In addition, a mode in which the inner flap is bent through the two folds and a mode in which the inner flap is not bent can be selected according to the storage state of the storage object.

In one embodiment of the present invention, a tongue piece is formed at a fold between the vertical wall portion and the folded portion through a cut so as to extend downward during assembly. According to the above configuration, when the tongue is inserted between a plurality of objects stored in the inside of the packaging box, the tongue can prevent lateral movement of the object.

In one embodiment of the present invention, a handle portion is provided on the one side plate through a cut. With the above configuration, the portability of the packaging box can be improved by the handle.

In one embodiment of the present invention, a reinforcing means is provided on at least one side plate inner surface near the handle. With the above configuration, the strength of the box can be improved by the reinforcing means while the appearance of the packaging box is secured, and the box is not damaged even if the box is lifted using the handle.

In one embodiment of the present invention, the reinforcing means is formed of an adhesive tape. With the above structure, the reinforcing means can be easily provided on the inner surface of the side plate, and furthermore, there is no possibility that the inner volume of the packaging box is reduced, and there is a concern that the stored object may be caught on the adhesive tape when the stored object is taken in and out. Absent.

[0017]

【Example】

 One embodiment of the present invention will be described in detail below with reference to the drawings. The drawing shows a packaging box made of corrugated cardboard, and in FIG. 1 shown in an unfolded state before assembly, a substantially square side plate 2 is connected to one side of a rectangular side plate 1 through a vertical fold a. A rectangular side plate 3 is connected to one side of the side plate 2 through a vertical fold b, and a substantially square side plate is connected to one side of the side plate 3 through a vertical fold c. 4 are connected.

Here, the above-mentioned square side plates 2 and 4 become one side plate facing each other at the time of assembling the box, and the above-mentioned rectangular side plates 1 and 3 serve as opposite side plates at the time of assembling the box. It becomes a side plate. Bottom plates 6, 7, 8, and 9 are respectively connected to the other side of the above-mentioned side plate 1 through vertical folds d.

Outer flaps 10 are connected to upper portions of the rectangular side plates 1 and 3 through lateral folds i, i, respectively. The folded portions 11 and 11 are provided through two adjacent folds j and j (or adjacent perforations) to such an extent that the folds (see FIG. 7) are formed.

Notches 12, 12 are formed so as to straddle both ends of the above-mentioned adjacent folds j, j and a part of the outer flap 10. The notch 12 is used to improve the operability when opening the lid (see inner and outer flaps 10 and 13) of the box assembled in a sealed state at one end.

On the other hand, inner flaps 13 are connected to upper portions of the substantially square side plates 2 and 4 through lateral folds k and k, respectively. The inner flap 13 is formed with two folds m and n parallel to the fold k at the upper portion of the side plate, and the inner flap 13 has a flap portion 14, a vertical wall portion 15, and a vertical wall portion. 15 and a folded portion 16 is formed.

Thus, cuts p, p having a substantially gate shape are formed so as to straddle the flap portion 14 and the upper sides of the side plates 2 and 4, and a fold g is formed at the base end of the cut p. A cut-and-raised piece 17 that is formed and cut and raised from each of the portions 14, 2, 14, 4 is provided.

A substantially U-shaped insertion groove 17 a is formed on the insertion side of the cut-and-raised piece 17. A tongue piece 18 is formed at a fold n between the vertical wall portion 15 and the folded portion 16 through a cut r so as to extend downward during assembly.

On the other hand, a handle 19 is provided in the middle of the side plates 2 and 4 by forming a substantially concave cut s and a fold t connecting the upper ends of the cuts s. Instead of the handle 19, a handle opening punched out along four notches may be formed, and the handle opening may be formed as a handle.

Further, a reinforcing member 20 as a reinforcing means is provided on the inner surface of at least one of the side plates 2 and 4 in the vicinity of the handle portion 19. In this embodiment, an adhesive tape is used as the reinforcing member 20, and the adhesive tape is strip-shaped on the inner surface of each of the side plates 1 to 4 including the one side plates 2 and 4 and the connection piece 5 in the upper portion near the handle 19. Although it is affixed, instead of the adhesive tape, a cardboard made of the same material as the packaging box may be formed in a strip shape and affixed, and when the handle 19 is bent inward through the fold t, A reinforcing tape may be provided at the edge of the formed handle opening.

In order to assemble the unpacked packaging box shown in FIG. 1 into a box shape, first, the side plates 1 to 4 and the connecting piece 5 are bent along each of the vertical folds a to d. Is bonded to the inner surface of the side plate 4 by bonding or the like.

Next, each of the bottom plates 6 to 9 is bent along the folds e to h below the side plates 1 to 4, and these bottom plates 6 to 9 are combined as shown in FIG. It has a rectangular tube shape with a bottom as shown in FIG. Under the condition shown in FIG. 3, an object can be stored inside the box.

Next, as shown in the figure, the cut-and-raised piece 17 is cut and raised along the cut p and the fold g to the outside of the box. Next, the vertical wall portion 15 and the folded portion 16 are bent toward the inner surface side of the inner flap 13 along the respective folds m and n of the inner flap 13 from the state shown in FIG. At this time, a tongue piece 18 provided at the fold n via the cut r is projected.

Next, from the state shown in FIG. 4, the inner flap 13 is bent inward along the folds k, k on the upper portions of the side plates 2, 4 to form the state shown in FIG. At this time, the flap portion 14 and the folded portion 16 are directed substantially horizontally, and the vertical wall portion 15 is directed vertically.

Next, from the state shown in FIG. 5, the folded portion 11 is bent toward the inner surface side of the outer flap 10 along the adjacent fold j, j of the outer flap 10 to form the state shown in FIG. At this time, a gap 21 is formed between the outer flap 10 and the folded portion 11 corresponding to the distance between the adjacent folds j.

Next, the pair of outer flaps 10, 10 are bent along the fold lines i, i onto the inner flaps 13, 13 from the state shown in FIG. At this time, one adjacent fold j, j and the other adjacent fold j, j coincide with each other along the longitudinal direction at the upper center of the box, and the gap 21 faces the cut-and-raised piece 17.

Next, as shown in FIG. 8, the cut-and-raised piece 17 is inserted into the gap 21 from the state shown in FIG. 7, and the corrugated cardboard between the adjacent folds j, j is clamped by the insertion groove 17 a of the cut-and-raised piece 17. Then, the pair of outer flaps 10, 10 are locked so as not to be opened, so that the sealed state of the packaging box can be secured without using a fastener such as staples.

When the handle portion 19 is bent inward along the fold t as necessary, a handle opening 22 is formed as shown in FIG. 8, thereby improving the portability of the packaging box. be able to.

FIG. 9 shows a cross section taken along line XX of FIG. 7, and FIG. 10 shows a cross section taken along line YY of FIG. As shown in FIG. 10, when a large number of paper sheets A are stored as an example of an object to be stored inside the packaging box and a space is formed between the paper sheets A and the inner flap 13. As shown in the drawing, if the vertical wall portion 15 and the folded portion 16 are formed along the folds m and n on the inner flap 13, the folded portion 16 supports the upper part of the paper sheet A. Therefore, it is possible to prevent the paper sheets A from rattling in the vertical direction when the packaging box is moved.

As shown in FIG. 10, when the tongue piece 18 extending downward is inserted between the paper sheets A during the assembly of the box, the paper sheet A can be prevented from moving in the lateral direction.

As described above, in the packaging box of the above embodiment, the four side plates 1, 2, 3, and 4 are connected via the folds a, b, and c, and the upper side plates 2, 4 opposed to each other at the time of assembly are assembled. Is a packaging box in which an inner flap 13 is connected via a fold k, and an outer flap 10 is connected via a fold i to an upper portion of the other side plates 1 and 3 which face each other during assembly. On the flap 13, two folds m and n parallel to the fold k on the upper side plates 2 and 4 are formed separately, and the inner flap 13 has a vertical wall portion 15 and a fold following the vertical wall portion 15. The portion 16 is formed.

With this configuration, when a space is formed between an object to be stored (see paper sheet A in FIG. 10) stored in the packaging box and the inner flap 13, Is folded through the above-mentioned two folds m and n, a vertical wall portion 15 in the vertical direction and a horizontal folded portion 16 are formed. The upper part of the storage object can be supported, and as a result, the storage object in the box can be prevented from rattling in the vertical direction when the packaging box is moved. In addition, since the formation of the vertical wall portion 15 improves the load-bearing strength from above the box, deformation of the box can be prevented even if the packaging boxes are stacked.

Further, since the vertical wall portion 15 and the folded portion 16 are formed by forming two parallel folds m and n apart from the existing inner flap 13, the number of parts is not increased at all. Absent. In addition, a mode in which the inner flap 13 is bent through the two folds m and n and a mode in which the inner flap 13 is not bent can be selected according to the storage state of the storage object.

The fold n between the vertical wall portion 15 and the folded portion 16 is formed with a tongue piece 18 through a notch r so as to extend downward during assembly. When the tongue piece 18 is inserted between a plurality of objects stored inside the box (see between the sheets A, A), the tongue piece 18 prevents the object from moving in the lateral direction. Can be.

Further, the handle portions 19 are provided on the side plates 2 and 4 on one side through cuts s, so that the portability of the packaging box can be improved by the handle portions 19. .

Further, since reinforcing means (see reinforcing member 20) is provided on the inner surface of at least one of the side plates 2 and 4 in the vicinity of the handle portion 19, the appearance of the packaging box is ensured. In addition, the strength of the box can be improved by the reinforcing means, and even if the box is lifted using the handle 19, the box is not damaged.

[0042] In addition, since the reinforcing means is formed of an adhesive tape, the reinforcing means can be easily provided on the inner surface of the side plate, and furthermore, the inner volume of the packaging box does not decrease, and the reinforcing member is covered. There is no concern that the stored object gets caught on the adhesive tape when the stored object is taken in and out.

FIG. 11 shows another embodiment of the packaging box. In the previous embodiment shown in FIGS. 1 to 10, each side plate 1 including one side plate 2 and 4 at the upper portion near the handle 19 is shown. 11 and an inner surface of the connection piece 5, a single reinforcing member 20 is adhered to the inner surface of the connection piece 5. In the embodiment shown in FIG. 5, a total of two reinforcing members 20, 20 are attached to the inner surface.

With such a configuration, the reinforcement degree can be further improved by the reinforcement members 20, 20 as reinforcement means. In this embodiment, the other configurations, operations, and effects are the same as those of the previous embodiment. Therefore, in FIG. 11, the same parts as those in the previous figure are denoted by the same reference numerals, and detailed description thereof will be omitted. I do.

FIGS. 12 and 13 show still another embodiment of the packaging box. In this embodiment, in addition to the configuration shown in FIGS. 1 to 10, between these folds m and n in the inner flap 13, Another fold n, v which is parallel to the fold m, n is formed.

With this configuration, when the storage height of the paper sheet A (see FIG. 10) as the storage object stored inside the packaging box is relatively low (for example, the A4 size paper sheet is 13), the vertical wall portion 15 and the folded portion 16 are formed along the fold lines m and n as shown by phantom lines in FIG. 13 to correspond to the storage height. When the storage height of paper sheets is relatively high (for example, when storing B5 size paper sheets in a vertically long shape), the folds u and v are indicated by solid lines in FIG. The vertical wall portion 15 and the folded portion 16 are formed along the vertical axis, and can correspond to the storage height.

That is, by selecting the bending position and adjusting the height of the vertical wall portion 15 in accordance with the storage height of the objects to be stored in the packaging box, The folded portion 16 at the upper part of the storage object can be supported, so that even if the storage height of the storage object is different, the backlash can be prevented.

In this embodiment, the other configurations, operations, and effects are almost the same as those of the previous embodiment. Therefore, in FIG. 12 and FIG. Although the detailed description is omitted, the tongue piece 18 may be formed along the fold n in the embodiment of FIGS. 12 and 13 as described above. Further, in the packaging box of the previous embodiment, the folded portion 16 may be used by being bent in the extending direction of the inner flap 13 toward the inside of the box as shown in FIG.

In the correspondence between the configuration of the present invention and the above-described embodiment, the packaging box of the present invention corresponds to the corrugated cardboard packaging box of the embodiment. 4, the other side plate corresponds to the side plates 1 and 3, the reinforcing means corresponds to the reinforcing member 20, and the object stored in the box corresponds to the paper sheet A, The present invention is not limited to the configuration of the above-described embodiment.

For example, instead of corrugated cardboard, thick paper or thin resin may be used as the constituent material of the packaging box, and the reinforcing member 20 may be replaced with an adhesive tape, other than the same strip-shaped tape as the box forming material. May be the reinforcing means. Further, the object to be stored may be documents, articles, products, or other objects to be stored in addition to the sheet A.

[0051]

[Effect of the invention]

 According to the present invention, two folds parallel to the folds at the upper side plate are separately formed on the inner flap, and a vertical wall portion and a folded portion following the vertical wall portion are formed on the inner flap. Therefore, in the case where a space is formed between the object stored inside the box and the inner flap, the inner flap is bent through two folds to form a vertical wall portion and a folded portion. The folded portion supports the upper portion of the object to be stored, thereby preventing rattling, and the vertical wall portion improves the load-bearing strength from above the box. The structure is effective, and the existing inner flap is provided with a vertical wall and a folded portion, so that the number of parts does not increase at all.

Furthermore, since the reinforcing means is provided on the inner surface near the handle, the strength of the box can be improved, and the box can be prevented from being damaged when the box is lifted.

[Brief description of the drawings]

FIG. 1 is a development view showing a packaging box of the present invention.

FIG. 2 is a plan view showing a combination structure of a bottom plate.

FIG. 3 is a perspective view showing the packaging box with both inner and outer flaps opened.

FIG. 4 is a perspective view showing a bent state of the inner flap.

FIG. 5 is a perspective view showing a state in which the inner flap is bent into a box.

FIG. 6 is a perspective view showing a folded state of a folded portion.

FIG. 7 is a perspective view showing a closed state of the outer flap.

FIG. 8 is a perspective view showing a sealed state.

FIG. 9 is a sectional view taken along line XX of FIG. 7;

FIG. 10 is a sectional view taken along line YY of FIG. 8;

FIG. 11 is a perspective view showing another embodiment of the packaging box according to the present invention during assembly.

FIG. 12 is a perspective view showing still another embodiment of the packaging box of the present invention.

FIG. 13 is a cross-sectional view illustrating selection of a bending position based on a difference in storage height of an object to be stored.

FIG. 14 is a cross-sectional view showing another use mode of the packaging box of the present invention.

[Explanation of symbols]

 1,3 ... side plate (other side plate) 2,4 ... side plate (one side plate) 10 ... outside flap 13 ... inside flap 15 ... vertical wall part 16 ... returned part 18 ... tongue piece 19 ... handle part 20 ... reinforcement Member (reinforcing means) a, b, c ... fold i ... fold k ... fold m, n ... fold r ... cut s ... cut

Claims (5)

[Utility model registration claims] An inner flap is connected via a fold to an upper portion of one side plate which faces at the time of assembly, and is connected to an upper portion of the other side plate which faces at the time of assembly. A packaging box to which an outer flap is connected via a fold, wherein the inner flap is formed with two folds parallel to the fold on the upper side plate, and a vertical wall portion is formed on the inner flap; A packaging box formed with a folded portion following the vertical wall portion. 2. The fold between the vertical wall portion and the folded portion,
2. The packaging box according to claim 1, wherein a tongue is formed through a cut so as to extend downward during assembly. 3. The packaging box according to claim 3, wherein a handle portion is provided on the one side plate through a cut. 4. A reinforcing means is provided on at least one side plate inner surface in the vicinity of the handle portion.
The packaging box described. 5. The packaging box according to claim 4, wherein said reinforcing means is formed of an adhesive tape.