JPS5933775Y2 - packaging box - Google Patents

Description

[Detailed description of the invention] This invention relates to a packaging box that is made of a single sheet and becomes a complete rectangular box when assembled.

Conventionally known assembling packaging boxes include, for example, A-type box and B-type packaging box.
Type-A boxes, Type-C boxes, punched boxes, etc. are generally well known, but Type-A boxes, for example, have disadvantages such as needing to be secured at the bottom during packaging and the bottom easily falling out. ,
C-type boxes have disadvantages such as the need to use two to three sheets, the need to connect the sheets, and the fact that the compressive strength is inferior to other types of boxes. There are disadvantages such as the number of sheets to be processed is large, the number of sheets is not suitable for mass production, and many items cannot be folded. There were disadvantages such as ruled lines appearing on the printed surface and a lot of unnecessary sheet loss.

Therefore, the present invention solves all of the drawbacks of the conventional products as mentioned above, is foldable, easy to assemble, has no risk of falling out, and is therefore strong. The aim is to provide a new packaging box that provides excellent product protection.

To explain one embodiment with reference to the drawings, a packaging box 1 according to this invention is made of a rigid sheet-like material such as cardboard, cardboard, fiberboard, plastic cardboard, or foamed plastic sheet. It is made by punching out a single sheet with a punching machine, adding ruled lines, and pasting it in the required places, as shown in Figure 1.
This shows a state in which a material sheet 1' has been punched out into a desired shape and the required folding lines have been applied to it. A pair of consecutive side plates 5, 5, 5.5 are a pair of side plates 3
, 3, and are connected to each other via fold lines 6, 6, 6.6.

In this way, the end plate of the packaging box 1 according to this invention is composed of the four end plates 5, 5, 5.5 mentioned above, and these four end plates 5, 5, 5° 5, each of the bottom sides 5a, 5a of a pair of end plates 5, 5 facing each other with the bottom plate 2 diagonally sandwiched therebetween has a bottom side 5a, respectively.
, flap-shaped connecting pieces 7, 7 with broken lines at positions corresponding to 5a.
are connected in series, and each of the connecting pieces 7, 7 has a connecting part between the side plate 3 and the end plate 5, that is, the lower end 6a of the fold line 6, and the end plate 5.
A ruled line 8 is provided at an angle of 45 degrees with respect to the bottom side 5a of the connecting piece 7. The bottom plate 2, the side plates 3, and the end plate 5 are fixed by gluing or nailing so that they are perpendicular to each other when the entire surface of the plate is brought into contact with the bottom surface 2.

That is, each connecting piece 7 is folded 180 degrees inward along the ruled line 8 without bending the fold line of the bottom side 5a which is the connecting part between the end plate 5 and the connecting piece 7. , when the end plate 5 is folded 180° inward along the fold line 6 (FIG. 2), the portion 7a outside the ruled line 8 that contacts the bottom surface 2 is folded over the bottom surface 2 at the contact position. It is fixed to .

In the figure, reference numeral 10 indicates a hand hole formed at the same phase in each of the four end plates 5, and reference numeral 11.11 indicates a hole on the outside of the lid which is connected to the upper side of each side plate 3, 3 via a fold line 12.12. Flaps 13.13 are inner flaps of the lid that are connected to the upper sides of the pair of end plates 5, 5 on which the connecting pieces 7, 7 are connected, respectively, via fold lines 14.14; Wife board 5.5
On the upper side, each of the end flaps is connected via a fold line 16.16.
．． When folded 180 degrees along 16, it is each end plate 5.
, arranged at a position overlapping the handhold hole 10.10 of 5,
Handhold portion 17 consisting of a notch (as shown) or a hole (not shown)
, 17 are formed.

Since the packaging box 1 of this invention has the above-mentioned configuration,
From the folded state shown in FIG.
° When folded inward, it can be folded into a compact flat shape as shown in Figure 3. When using this, from the state shown in Figure 3, each folded ruled line should be 8,
When the 8 parts are opened 180 degrees (Fig. 4) and the connecting pieces 7, 7 are brought into close contact with the bottom surface 2, each side plate 3, 3 and end plate 5, 5,
5.5 are all placed upright against the bottom plate 2 (FIG. 5).

If the pair of end plates 5, 5, which were still folded at 180° in this state are opened 90°, the end plate 5 without the connecting piece 7 will be inside the end plate 5 with the connecting piece 7. become a superimposed box (Figure 7).

In this state, a pair of wife flaps 15.15
When folded 180 degrees inward, the two end plates 5, 5 and the end flap 15 overlap, and above the hand hole 10, the end plate of the packaging box 1 is made up of three sheets. The state will be as follows.

In this state, it goes without saying that the handhold holes 10.10 formed in the pair of end plates 5, 5 on each side and the end flap 15 and the handhold portions 17 overlap with each other.
As shown in the figure, when punching the hand hole 10, flaps 18 and 18 are formed in series on a part of the periphery of the hand hole 10 formed in the end plates 5, 5 on the side where the connecting pieces 7 are connected. When storing the package, put the packaging box 1 in the assembled state as shown in FIG. 7 or 8, and insert the flaps 18 and 18 into the overlapping inner hand holes 10, respectively. , The packaging box 1 of the present invention is pulled up into a box shape as shown in Figures 7 and 8.
can be kept in a box shape with the flaps 18.18.

The packaging box 1 of this invention can be easily folded from the state shown in FIG. 8 to the state shown in FIG. 3 by following the reverse procedure to that described above.

In the above embodiment, when the packaging box 1 is assembled into the state shown in FIG. 7 or 8, the flap 18 formed on the outer end plate 5 is connected to the handhold hole 10 formed on the inner end plate 5. By inserting the packaging box 1 in the
In another embodiment in which the hole 20 is not provided, a hole 20 is provided in the end flap 15 connected to the inner end plate 5, as shown in FIG.
A shape-retaining flap 21 that engages with the hole 20 may be formed by cutting and raising a part of the inner flap 13 connected to the outer end plate 5.

Further, in the above embodiment, the pair of connecting pieces 7, 7 are
Although an example has been shown in which the pair of end plates 5, 5 are connected to the pair of side plates 3, 3, in other embodiments, the pair of connecting pieces 7, 7 may be connected to one side. It may be connected to a pair of end plates 5, 5 connected to both ends of the side plate 3 (not shown).

Furthermore, in the above embodiment, an example was shown in which this invention can be implemented as a box with a rectangular bottom plate, but it is also possible to implement this invention even if the packaging box according to this invention has a square bottom shape. As an example, the first
1 to 13, and in the figures, the same parts as in the above embodiment are given the same reference numerals.

Above, the packaging box according to this invention has been explained with reference to an embodiment, but as can be easily understood from the above, the packaging box according to this invention can be manufactured without cutting much of a single sheet material. There is no wasted sheet loss.

In addition, since it can be easily manufactured using a punching machine, it can be manufactured at low cost, and it can be assembled with one touch.

There is no need to stop the bottom during assembly.

Since the end surface is double-layered, it has high pressure resistance.

If you drill a handhold hole, you can triple-layer the hole, making the handhold part strong.

In the folded state, there are no protrusions and it is compact, so transportation efficiency is good.

Therefore, it can also be used as a return box.

Also, since there are no ruled lines on the surface of the box, which is the printing surface, the appearance is beautiful.

It has many excellent advantages such as.

[Brief explanation of the drawing]

Figure 1 is a developed view of the material that makes up the packaging box according to this invention, Figure 2 is a developed view of the material partially folded into a packaging box, and Figure 3 is a partially folded view of the material. A plan view of the packaging box folded into its most compact state, Figures 4 to 7 are perspective views of the packaging box showing various states of being assembled into a box shape from the folded state, and Figure 8 is the assembled box. FIG. 9 is a sectional view taken along the line 1 in FIG. 1, FIG. 10 is a perspective view of the packaging box showing another embodiment, and FIGS. This figure corresponds to FIGS. 1 to 3, respectively. 1...Packaging box, 2...Bottom plate, 3...
... Side plate, 5 ... End plate, 5a ... Bottom, 7 ... Connection piece, 8 ... Ruled line, 10
...Hand hole, 18...Flap.

Claims (1)

[Scope of utility model registration request] 1. A pair of side plates 3, 3 are connected to the bottom plate 2, and the pair of side plates 3
．． A pair of end plates 5, 5. 5, 5 are arranged in series on each side of 3, and the bottom sides 5a of the pair of end plates 5, 5 face each other with the bottom plate 2 in between,
Connecting pieces 7, 7 are provided in series on 5a, and each of the connecting pieces 7
, 7 are provided with a ruled line 8 extending from the lower end 6a of the connection between the side plate 3 and the end plate 5 at an angle of 45 degrees with respect to the bottom side 5a of the end plate 5. outer part 7a
The packaging box is characterized by being fixed to the bottom plate 2. 2. The packaging box according to claim 1, wherein the pair of connecting pieces 7, 7 are connected to a pair of end plates 5, 5 which are connected to a pair of side plates 3, 3. . 3. The packaging box according to claim 1, wherein the pair of connecting pieces 7, 7 are connected to a pair of end plates 5, 5 connected to both ends of one side plate 3. . 4. Any one of claims 1 to 3 of the claims registered as a utility model, wherein each end board 5, 5, 5.5 is provided with a hand hole 10, 10, 10.10 at a fixed position on the end surface. The packaging box described in paragraph (1). 5. The pair of end plates 5, 5 each having a connecting piece 7 connected thereto,
The packaging box according to claim 4, which is provided with a flap 18.18 connected to a part of the periphery of the hand hole 10.10. 6. A pair of end plates 5.5 on the side where the connecting pieces 7 are not connected
are respectively connected to the upper sides 16.16 thereof, and each gable plate 15.15 is connected to the upper side 16.16 thereof, and when the gable flaps 15.15 are folded inwardly, each gable plate Claim 4 or 5 of the utility model registration claim, comprising a gable flap 15.15 having handhold portions 17, 17 communicating with the handhold holes 10.10 of 5, 5, respectively. packaging box.