JP2567921Y2 - Box structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a packaging box assembled by an automatic packing machine or the like and for packaging a long article to be packed.

[0002]

2. Description of the Related Art Conventionally, the structure of a packaging box for packaging a long packaged object 2 such as an agricultural film wound in a roll or a building material such as a pillar or a sash frame is shown in FIG. As shown in the figure, the first, second, third and fourth packaging pieces A1 having the same length in the longitudinal direction via three parallel folding lines a1, a2 and a3.
A2, A3, and A4 are formed continuously,
Of these packaging pieces A1, A2, A3, A4, the end face packaging pieces B1, B2 are provided on both sides of the second packaging piece A2 via folding lines b1, b2.

[0003] On both sides of the first packaging piece A1, a fold line f is provided continuously with a fold line e.
And both side folded pieces C1 and C1 which are continuous with the end face wrapping pieces B1 and B2 are formed.

[0004] On both sides of the third packaging piece A3, each is provided continuously along a fold line e.
Both side folded pieces C2 and C2 which are continuous with the end face packaging pieces B1 and B2 via the fold line f are formed.

[0005] Further, each side folded piece C1, C1, C
2 and C2, an inner fold line (or perforated line) g is provided on a substantially square diagonal line having the fold line e and the fold line f as two sides, and an outer corner portion is orthogonal to the inner fold line g. Beveled in the direction.

Further, on both sides of the fourth wrapping piece A4, end fold pieces D having the same length as the end wrapping pieces B1 and B2 in the lateral width direction in the drawing are provided via folding lines h. The end-face folded pieces D, D are separated from the both-side folded pieces C2, C2 by a cut i, and a portion extending from the cut i to the outer edge is formed in an arc shape.

[0007] Then, on the outer edge of the first packaging piece A1,
An outer folded piece F that is continuous via a folding line j is provided. Further, in the box structure having the above-described configuration, the sides at both ends of the outer folding piece F and the folding lines e, b1, e, h (e, b2,
e, h) are on the same straight line.

In order to assemble the unfolded state as shown in FIG. 6 into a box using an automatic packing machine or the like with the above-described box structure, the folding lines b1 and b2 and the folding lines b1 and b2 are aligned. Each of the fold lines e is folded in the same direction. Further, the fold line a2, the fold lines f, f on the side of the both-side fold pieces C2 and C2 which are aligned with the fold line a2, and the fold lines C of the both-side.
2, fold the inner fold lines g, g at C2.

Next, the fold line a1, the fold lines f and f on the side of the both-side fold pieces C1 and C1, which are on a straight line with the fold line a1, and the inner fold lines g and g on the both-side fold pieces C1 and C1.
Is slightly folded, and the article to be packaged 2 is loaded into the frame opened upward.

Further, the fold lines h, h are folded so that the end-face folded pieces D, D are directed inward by about 90 ° with respect to the fourth packaging piece A4, and then the fold line a3 is folded to form the end-face folded pieces D, D.
Into the inside of the end face packaging pieces B1 and B2.

Then, the fold line a1 and both side fold pieces C1, C
1 The folding lines f, f of the wales and the inner folding lines g, g on the folding pieces C1, C1 on both sides are reliably folded. Further, the folding line j is inserted, and the outer folding piece F is inserted inward from the lower gap of the packaging piece A4 to assemble the box.

[0012]

However, in the above-mentioned conventional box structure, the end folding pieces D, D facing inward by folding the folding lines h, h are folded at the folding line a3 to form the end packaging pieces B1, B2. When the inside of the box 1 is inserted, the both sides of the end piece F, the sides of the notch i side of the end face folding pieces D, D push the two sides folding pieces C2, C2 which are folded in a substantially triangular shape. There is a problem that it causes assembly failure.

[0013] In view of the above, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a structure of a box which can be assembled without causing an assembly failure when assembling the box 1 with an automatic packing machine. I have.

[0014]

Next, means for achieving the above object will be described with reference to FIGS. 1 to 5 corresponding to an embodiment. The structure of the box of the present invention is such that the first and the first are connected to each other through three parallel folding lines a1, a2 and a3.
Along with the second, third and fourth packaging pieces A1, A2, A3 and A4, folding lines b1 and b1 are provided on both sides of the second packaging piece A2.
b2 are provided through the end face wrapping pieces B1, B2, and the fold lines a1, a2, a3, b1, b2 are folded in the same direction, and the end face wrapping pieces B1, B2 and the first and third wrapping pieces A1, In the structure of the box in which the opposing sides of A3 are joined to form the box 1 and the object to be packaged 2 is loaded, both sides of the first packaging piece A1 are connected to each other via the folding line e, and The first packaging piece A of the end face packaging pieces B1 and B2
1. Both side folding pieces C1 and C1, which are formed continuously with the side adjacent to 1 through the folding line f and form the inner folding line g on a substantially rectangular diagonal line having the folding line e and the folding line f as two sides;
Both sides of the third wrapping piece A3 are continuous via the fold line e, respectively, and are formed continuously along the sides of the end face wrapping pieces B1 and B2 adjacent to the third wrapping piece A3 via the fold line f. Fold lines C2 and C2 each having an inner fold line g formed on a substantially rectangular diagonal line having the fold lines e and f as two sides, and fold lines h on both sides of the fourth packing piece A4.
And the folded pieces C2 and C
2 are separated by a cut i, and the end face bent pieces D, D having a substantially semicircular notch E formed on the side on the cut i side, and a fold line j on the outer edge of the first packaging piece A1. , And an outer folded piece F that is continuous through the outer folded piece F.

[0015]

The fold lines b1, b2 and each fold line e are folded in the same direction, and the fold line a2 and the fold lines f, f on both sides of the fold pieces C2, C2 are further folded to form inner fold lines g, Insert g.

Further, the folding lines h, h are folded so that the end face folding pieces D, D are directed inward, and furthermore, the folding line a3 is folded so that the end face folding pieces D, D become substantially triangular. A state in which the third and fourth wrapping pieces A3 and A4 and the end wrapping pieces B1 and B2 are not easily spread with respect to the second wrapping piece A2 by engaging with the side above the upper side of C2 and C2. And

Further, a fold line a1 and both side folding pieces C1, C
The folding lines f, f on one side and the inner folding lines g, g on the folding pieces C1, C1 on both sides are slightly folded, and in this state, the packaged object 2 is loaded.

Further, the fold line a1 is folded to form an end face folding piece D.
Is inserted inside the end face packaging piece B2, and the fold line f and the inner fold line g on the both-side fold piece C1 side are folded. Then, the folding line j is folded, and the outer folded piece F is inserted inward from the lower gap of the fourth packaging piece A4 to assemble the box 1.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. In the embodiments described below, the same or equivalent parts as those of the above-described conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is a development view showing one embodiment of the structure of the box according to the present invention.

Now, the structure of the box of the present invention which becomes the box 1 as shown in FIG. 5 is, as shown in FIG.
However, it is formed shorter in the longitudinal direction than the other packaging pieces A1, A2, A3. Along with this, each fold line h located at both ends of the fourth packaging piece A4 is located inside, for example, about 3 mm inward from an extension of each fold line e at both ends of the third packaging piece A3, The cut i extends to the position of the folding line h. Also, the end-face folded pieces D on both sides of the fourth packaging piece A4,
D is located inside the extension line of the outer edge of the end face packaging pieces B1 and B2 by an amount corresponding to the movement of the fold line h.
1 and B2 have the same length in the width direction. (L2 in FIG. 1)

Each of the end-face folded pieces D, D has a radius of 1 in the vicinity of the folding line h on a side adjacent to the notch i separating the end-face folded pieces D, D and the both-side folded pieces C2, C2.
A substantially semicircular notch E, which is 0 mm, is formed. In addition, chamfers D1 are formed on the outer corners of the end face bent pieces D, D at an angle from the middle of the side facing the side on the cut i side.

On the other hand, a folding line j is formed on the outer edge of the first packaging piece A1.
The outer folded piece F that is continuous through the first packing piece A1 is formed to be shorter in the longitudinal direction than the first packaging piece A1, and
Both corners of the outer folding piece F are chamfered.
Further, both side folded pieces C1, C on both sides of the first packaging piece A1.
1 is formed such that the side of the side surface side is cut inward from the extension of the side surface side of the end face packaging pieces B1 and B2, and the width direction is shorter than the end face packaging pieces B1 and B2 (L1 in FIG. 1). ).

Further, both sides of the first package piece A1 and the third package piece A3 via the fold line e continue on both sides of the first package piece A1 and the third package piece A3.
1, C1, C2, and C2 have internal fold lines g
A cut line G is formed between a portion intersecting the fold lines e and f and a point g ′ in the drawing, so that the fold line g can be easily folded.

Next, the operation of assembling the above-described box structure into the box 1 by an automatic packing machine will be described with reference to the drawings.

As described in the prior art, the box 1 having the box structure has a structure in which an agricultural PVC sheet for agricultural use is wound into a roll, or an agricultural film such as a pillar or a sash frame. The long packaged object 2 is packed. In this embodiment, since the structure of the box is symmetrical, only the right side will be described with reference to the drawings for the description of assembly, and the second packaging piece A2 will be described as the bottom of the box.

First, as shown in FIG. 2, the folding line h is folded to bend the end face folded piece D to about 90 °. Next, the fold line b2 and each fold line e are folded, and further the fold line a2, the fold line f on the both-side fold piece C2 side, and the inner fold line g are folded.

Then, as shown in FIG. 3, the fold line a3 is folded and the end face folded piece D is inserted into the inside of the end face packaging piece B2. At this time, the notch E provided in the end face folded piece D is engaged with this side so as to jump over the side above the double-faced folded piece C2, and the third packaging piece A with respect to the second packaging piece A2.
Third, the fourth wrapping piece A4 and the end face wrapping piece B2 do not easily spread.

Next, as shown in FIG.
The fold line f and the inner fold line g on one side are slightly folded. In this state, the article to be packaged 2 is loaded.

Further, the first wrapping piece A1 is further folded to insert the end face folded piece D inside the end face wrapping piece B2, and the fold line f and the inner fold line g on both side folded piece C1 side are securely folded. Then, the fold line j is folded, and the outer folded piece F is inserted inward from the lower gap of the fourth packaging piece A4 to obtain a box 1 as shown in FIG. In addition, this box 1
In order to ensure a reliable box state, a part of the outside of the box 1 is stopped with a band 3 or the like.

Therefore, in the box structure constructed in this way, the side of the double-sided folded piece C2 is cut by the notch E provided in the end-face folded piece D during the assembling process.
And the bent pieces C2 on both sides are not deformed. The notch E temporarily engages the double-sided folded piece C2, so that the package 1
When loading the package, the double-sided folded piece C2 can be locked, and the third package A3, the fourth package A4, and the end face package B2 do not easily spread with respect to the second package A2.

Furthermore, since the notch E is formed in a substantially semicircular shape, when the folding line a3 is folded and the end face folding piece D is inserted into the inside of the box 1, the double-side folding piece C2 is replaced with the third packaging piece. The housing 1 can be assembled while being locked in the A3 direction.

The end face bent at the fold line h is located inside the extension of the fold line e on both sides of the third packaging piece A3 in consideration of the thickness of each piece into which the fold line h is folded. The folding piece D is located inside and can be easily put inside the box 1.

Further, since the chamfer D1 is formed at a corner portion of the end face folded piece D, the end face folded piece D is slightly folded when the end face folded piece D is inserted into the inside of the box 1 after the packaged object 2 is loaded. This double-sided folded piece D is attached to the double-sided folded piece C1.
Can be put inside the box 1 without contact.

The outer folded piece F is the first package piece A1.
Since it is formed shorter in the longitudinal direction and the corner portion is chamfered, it can be easily inserted into the lower side of the fourth packaging piece A4. Further, since the both-side folded piece C1 is formed by cutting the side of the side surface side inward from the extension of the side of the side surface of the end face packaging pieces B1 and B2, the outer folded piece F can be further divided into the fourth. It can be easily inserted under the packaging piece A4.

Furthermore, it goes without saying that, for example, by making the width of the packaging pieces A2 and A4 twice the width of the packaging pieces A1 and A3, a packaging box for packaging two articles to be packaged 2 can be obtained.

[0036]

As described above, in the structure of the box according to the present invention, since the notch E is provided in the end-face folded piece D, the side of the double-faced folded piece C2 is not pushed by the end face folded piece D. There is an effect that the folding piece C2 is not deformed. Further, since the notch E temporarily engages with the double-sided folded piece C2, the third packaging piece A3, the fourth packaging piece A4, and the end face packaging piece B2 are easily formed with respect to the second packaging piece A2. When assembling the box 1 with the automatic packing machine, it does not cause the assembly failure,
There is an effect that the assembling can be easily performed and the packaged article 2 can be smoothly loaded during the assembling.

[Brief description of the drawings]

FIG. 1 is a development view showing an embodiment of a box structure according to the present invention.

FIG. 2 is a perspective view showing an assembling process.

FIG. 3 is a perspective view showing the assembling process.

FIG. 4 is a perspective view showing the assembling process.

FIG. 5 is a perspective view showing the assembling step.

FIG. 6 is a development view of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Box, 2 ... Packaged object, A1: First packaging piece, A2 ...
Second packaging piece, A3: Third packaging piece, A4: Fourth packaging piece, B1, B2: End face packaging piece, C1, C2: Folded piece on both sides, D: End face folded piece, E: Notch, F ... Outside folded pieces, a1, a2, a3 ... Folded lines, b1, b2 ... Folded lines, e ...
Fold line, f: Fold line, g: Inside fold line, h: Fold line, i: Cut, j: Fold line.

Claims (1)

(57) [Scope of request for utility model registration] 1. Three parallel fold lines (a1, a2, a3)
And first, second, third, and fourth packaging pieces (A1, A2, A3, A4) that are continuous with each other through
End packaging pieces (B1, B2) are provided on both sides of the second packaging piece (A2) via folding lines (b1, b2), and the folding lines (a1, a2, a3, b1, b2) are placed in the same direction. Folding and joining the opposing sides of the end-face wrapping pieces (B1, B2) and the first and third wrapping pieces (A1, A3) to form a box (1) and the object to be wrapped (2) In the structure of the box to be loaded, both sides of the first packaging piece (A1) are connected to each other via folding lines (e), and the end packaging pieces (B
1, B2) , a substantially rectangular shape formed continuously with the side adjacent to the first packaging piece (A1) via the fold line (f) and having the fold line (e) and the fold line (f) as two sides. Fold pieces (C1, C2) having an inner fold line (g) formed on the diagonal of
1) and both sides of the third wrapping piece (A3) are continuous via the folding line (e), respectively, and the end wrapping pieces (B
1, B2) , a substantially rectangular shape formed continuously with the side adjacent to the third packaging piece (A3) via the fold line (f) and having the fold line (e) and the fold line (f) as two sides. Fold pieces (C2, C) formed with an inner fold line (g) on the diagonal of
2), and continuous on both sides of the fourth packaging piece (A4) via the folding line (h), and the both-side folding pieces (C2, C2).
And a cutout (i), an end face folded piece (D, D) having a substantially semicircular cutout (E) formed on the side of the cutout (i), and the first packaging piece ( A box structure, comprising: an outer fold piece (F) connected to the outer edge of A1) via a fold line (j).