JPH082094Y2 - Packaging box - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box used for accommodating U-shaped products such as automobile bumpers.

[0002]

2. Description of the Related Art As an example of a packaging box for accommodating a U-shaped product, there is a blank box shown in FIG.

As shown in FIG. 8, a front plate 54 and a rear plate 55 are connected to both ends of a bottom plate 51 via fold lines 52 and 53, and a square tube is formed on both sides of the bottom plate 51 via fold lines 56. An outer wall 57, which is a component of the body, is connected in series.

The fold line 56 is bent to erect the outer wall 57 of the rectangular cylinder, and the fold lines 58 and 59 are bent to form a front wall 61 and a rear wall 62 of the rectangular cylinder. When the inner plates 61a and 62a, which are separated from the front wall 61 and the rear wall 62 by the score line 63, are overlapped and the ear piece 64 is locked in the slit 65, the inner wall of the rectangular tubular body is formed.

When the outer wall 57 and the bottom flaps 66a and 66b connected to the inner plate 62a are overlapped with each other, the lower end surface of the rectangular cylinder is closed.

When the fold lines 52 and 53 are bent and the front plate 54 and the rear plate 55 are erected at both ends of the bottom plate 51, both side portions of the front plate 54 and the rear plate 55 are connected to the front wall 6.
1 and the two end portions of the rear wall 62 are arranged in parallel with each other at a distance.
Are connected by a connecting member composed of.

When the lid flaps 67a and 67b connected to the front plate 54 and the rear plate 55 are overlapped and each ear piece 68 is locked in each slit 69, the top plate of the connecting member is formed.

[0008]

However, the conventional packaging box described above has drawbacks in that it has many bending points, takes a long time to assemble, and is inferior in working efficiency.

Therefore, an object of the present invention is to provide a packaging box that can be assembled very efficiently with one touch.

[0010]

In order to solve the above-mentioned problems, the present invention comprises two square cylinders arranged side by side with a distance and a connecting member for connecting the square cylinders.
The square tubular body is constituted by a front wall, a rear wall, an inner side wall and an outer side wall, and the connecting members are formed by connecting the lower ends of the front plate and the rear plate by a bottom plate, and the side edges of the front plate and the rear plate respectively. The connecting piece is constructed by connecting the connecting pieces through a folding curve, and the connecting piece is provided with an oblique folding curve whose starting point is the lower end of the folding curve. The quadrangular cylinder and the connecting member are integrated by superimposing and fixing them on the upper ends of the front wall and the rear wall of the cylinder, and the side edges of the bottom plate of the inner wall of the quadrangular cylinder abut against each other. The upper part is cut away from the eyes, and the folding curve and the diagonal folding curve are bent to form a foldable structure.

In addition to the above construction, four bottom flaps are continuously provided at the lower end edge of each rectangular cylinder, and two bottom flaps adjacent to each other are connected as one set, and the connecting portions are connected together. A fold line may be provided in the fold line, and the bottom face of each rectangular tubular body may be folded by folding the fold line.

[0012]

In the packaging box configured as described above, when the front plate and the rear plate of the connecting member are spread, the folding curves provided on both side edges of the front plate and the rear plate are mountain-folded, and at the same time, The diagonal folding curve provided on the connecting piece connected through this folding curve is valley-folded, and the folded rectangular tubular body is sandwiched between the front plate, the bottom plate, and the rear plate, and the entire packaging box. Is folded.

When the front plate of the folded packaging box is raised,
The bending of the diagonally bent curve of the connecting pieces continuously provided on both side edges of the front plate and the rear plate is released, and the rectangular tubular body naturally stands on both sides of the bottom plate to assemble this packaging box.

In a structure in which four bottom flaps are continuously provided on the lower end edge of a rectangular tubular body and two bottom flaps adjacent to each other are connected as a set and a folding line is provided at this connecting portion. When the diagonal folding curve of the connecting piece is valley-folded, the folding line is folded and the rectangular tubular body is folded.

At the time of assembly, the folding of the folding line is released when the rectangular tubular body is erected, and the pair of bottom flaps are slid and abutted at the central portion to close the bottom surface of the rectangular tubular body.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a packaging box according to the present invention comprises two rectangular cylinders 1 arranged side by side at a distance.
And a connecting member 2 for connecting the rectangular tubular body 1,
It is formed by assembling the blank shown in FIG.

As shown in FIG. 3 (a), the square tubular body 1 has a rear wall 4, an inner wall 5 and a front wall 6 on one side of an outer wall 3 in order through fold lines 7, 8 and 9. A glue margin piece 11 is provided on the other side of the outer wall 3 in a continuous manner.

Bottom flaps 3a, 4 are provided on the edges of the outer wall 3, the rear wall 4, the inner wall 5 and the front wall 6 through fold lines 12.
a, 5a, 6a are respectively provided in series, and the bottom flaps 3a,
A folding line 13 is provided at 5a.

A bending piece 3b is continuously provided on the outer wall 3 at the end opposite to the bottom flap 3a, and the inner wall 5 is notched at the end opposite to the bottom flap 5a to form a fold line. A paste margin piece 5c is provided via 5b.

In the connecting member 2, as shown in FIG. 3 (b), the front plate 14, the bottom plate 15, and the rear plate 16 have fold lines 17 and 18.
The crease line 1 is attached to one end of the front plate 14 sequentially.
Bending piece 2 having slits 21 at both ends via 9
2, one end of the rear plate 16 is continuously provided with a lid flap 25 having ears 24 at both ends via a fold line 23.

On both side edges of the front plate 14 and the rear plate 16,
The connecting pieces 14a and 16a are connected to each other via a folding line 26, and the top plate flap 25a is also installed to both ends of the lid flap 25 via a folding line 27.

The connecting pieces 14a, 16a are provided with an oblique bending curve 28 starting from the corner on the bottom plate 15 side.

The quadrangular cylinder 1 has the fold lines 7, 8 and
9 is bent to fix the adhesive margin piece 11 to the front wall 6, and the portions outside the folding line 13 of the bottom flaps 3a and 5a are fixed to the adjacent bottom flaps 4a and 6a, respectively. 1 and 2 is assembled by closing the bottom surface with the flaps 3a and 4a, 5a and 6a. At this time, the bottom surface of the rectangular tubular body 1 may be closed by a bottom plate (not particularly shown) that is connected to the lower end edges of any of the walls forming the rectangular tubular body 1.

On the other hand, the connecting member 2 has the fold line 1
It is formed by bending 7 and 18 and erecting the front plate 14 and the rear plate 16 on both ends of the bottom plate 15.

The connecting pieces 14a and 16a of the connecting member 2 are superposed on the upper ends of the front wall 6 and the rear wall 4 of the rectangular cylindrical body 1 assembled as described above, and the oblique bending curves of the connecting pieces 14a and 16a are formed. When the portion located below 28 is fixed, as shown in FIG.
And, as shown in FIG. 2, each square tube body 1 is spaced from each other,
It is connected by the connecting member 2.

At this time, when the glue margin piece 5c provided on the upper end of the inner wall 5 of the rectangular tubular body 1 is fixed to the inner surface of the bottom plate 15, the crease line 5b, as shown in FIG. 5 and the bottom plate 15, and the inner wall 5 in the upper portion from this butt is cut out as shown in FIG.

In the state shown in FIG. 1, the bumper is housed, the fold lines 19 and 23 are bent, the bent piece 22 and the lid flap 25 are overlapped, and the ear piece 24 is slit 21.
4, the top surface of the connecting member 2 is closed by the lid flap 25, and the top surface of the rectangular tube body 1 is closed by the top plate flap 25a, as shown in FIG.

Further, as shown in FIG. 5, the outer surface of the tip of the bent portion 32 of the bumper 31 is the outer wall 3 of the rectangular tubular body 1.
The inner surface of the bent portion 32 of the bent portion 32 is in contact with the inner wall 5 and the corner portion of the bottom plate 15 of the connecting member 2, and the outer surface of the front portion 33 of the bumper 31 is in contact with the lid flap 25 of the connecting member 2, respectively. Retained without.

When the front plate 14 and the rear plate 16 are expanded from the state shown in FIG. 1, the folding curves 26 provided on both side edges of the front plate 14 and the rear plate 16 are mountain-folded, and at the same time, the folding curves 26 are formed. The diagonal bending curve 28 provided on the connecting pieces 14 a and 16 a that are continuously provided via 26 is valley-folded.

The folding curves 27 provided on both side edges of the lid flap 25 are also mountain-folded, and the top plate flaps 25a are overlapped on both sides of the lid flap 25.

On the other hand, the quadrangular cylindrical body 1 has the outer wall as shown in FIG. 6 when the folding lines 13 provided at the connecting portions of the bottom flaps 3a, 4a and 5a, 6a connected to each other are folded. 3 and the front wall 6 come close to the rear wall 4 and the inner wall 5, and finally, as shown in FIG. 7, they are sandwiched between the front plate 14 and the bottom plate 15 and the rear plate 16 in a folded state. Then, the whole packaging box is folded.

On the contrary, when the front plate 14 of the connecting member 2 is raised from the state shown in FIG. 7, the folding curves 26 and 27 and the diagonal folding curve 2 are formed.
The folded state of 8 is released, the rectangular tube bodies 1 naturally stand on both sides of the bottom plate 15, and this packaging box is assembled with one touch.

[0033]

As described above, in the packaging box according to the present invention, the two rectangular cylinders and the connecting member are assembled in advance,
A connecting piece is continuously provided on both side edges of the front plate and the rear plate, which are constituent elements of the connecting member, through a bending curve, and the connecting piece is provided with an oblique bending curve whose starting point is the lower end of the bending curve. Since the connecting piece located below the folding curve is fixed to the upper end of the rectangular tubular body, it can be folded by bending the folding curve and the diagonal folding curve, and can be assembled very easily from the folded state with one touch. .

When not in use, it can be folded and kept flat so that it can be stored in a small space.

In the case where the bottom flaps connected to each other in pairs are continuously provided at the lower end edge of the square tubular body and the folding line is provided at the connecting portion, folding and assembling of the connecting member is performed by the square tubular body. Can be folded and assembled automatically at the same time,
The work efficiency is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a perspective view of the same as seen from the opposite direction.

[FIG. 3] Development view of the above

FIG. 4 is a perspective view of the same use state as above.

FIG. 5 is a cross-sectional plan view of the same as above when in use.

FIG. 6 is a partially omitted perspective view of the same folding process.

FIG. 7 is a perspective view of the same folding state.

FIG. 8 is a development view of a conventional example

[Explanation of symbols]

1 square tubular body 2 connecting member 3, 57 outer side wall 3a, 4a, 5a, 6a, 66a, 66b bottom flap 3b, 22 folding piece 4, 62 rear wall 5 inner side wall 5b, 7, 8, 9, 12, 17, 18, 19, 23, 5
2, 53, 56, 58, 59 Fold lines 5c, 11 Adhesive strips 6, 61 Front wall 13 Fold lines 14, 54 Front plate 14a, 16a Connecting piece 15, 51 Bottom plate 16, 55 Rear plate 21, 65, 69 Slit 24, 64, 68 Ear piece 25, 67a, 67b Lid flap 25a Top plate flap 26, 27 Folding curve 28 Diagonal folding curve 31 Bumper 32 Folding part 33 Front part 63 Cut line

Claims (2)

[Scope of utility model registration request] 1. A square tubular body, which is arranged at a distance from each other, and a connecting member for connecting the rectangular tubular bodies. The rectangular tubular body is composed of a front wall, a rear wall, an inner wall and an outer wall. Then, the connecting member is configured by connecting the lower ends of the front plate and the rear plate with the bottom plate, and connecting the connecting pieces to the both side edges of the front plate and the rear plate through folding curves, respectively. On one side, provide an oblique folding curve starting from the lower end of the folding curve,
The square tubular body and the connecting member are integrated by superimposing and fixing the connecting pieces located below the diagonal folding curve on the upper ends of the front wall and the rear wall of the square tubular body, respectively. Of the inner wall of the above, the upper part is cut away from the butting line where the side edge of the bottom plate abuts, and the fold curve and the diagonal fold curve are bent to be foldable. 2. Four bottom flaps are continuously provided on the lower end edge of each rectangular tubular body, two bottom flaps adjacent to each other are connected as a set, and a folding line is provided at this connecting portion. The packaging box according to claim 1, wherein the bottom surface of each rectangular tubular body is made foldable by folding the folding line.