JPH088987Y2 - Box structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention mainly relates to the structure of a packaging box for packaging an agricultural film as an article to be packaged.

(Prior Art) As a structure of this type of packaging box, the box shown in the developed view of FIG. 5 is known. Here, a box 101 formed by folding one sheet of paper, for example, corrugated cardboard, is a long wrapping piece continuous with each other through folding lines a ₁ , a ₂ , and a _3.
b _1, b _2, b _3, b ₄ together comprise a, an outer folding member c is provided on the outer edge of the wrapping strip b ₁ on one side, and the end surface wrapping on both sides of the packaging strip b ₂ pieces d _1, d ₂ And connecting pieces x ₁ and x ₂ are formed on both sides of the end surface packaging pieces d ₁ and d ₂ (or connecting pieces on both sides of the packaging pieces b ₁ and b _3).
x ₁ and x ₂ may be formed), and end face folding pieces j are formed at both ends of the packaging piece b ₄ .

(Problems to be solved by the invention) When assembling the box 101 with such a configuration, as shown in the perspective view of the state in the middle of assembly in FIG. 6, the connecting pieces x ₁ , x ₂
Must be glued, stapled, or stapled, which requires a lot of work. In particular, there is a possibility that the contents will be damaged when the stapler is used.

On the other hand, after assembling the box 101, the box 101 becomes unnecessary after the object to be packaged is taken out, for example, but since it is bulky in the shape of the box, it is desirable to return it to a single sheet. However, since the connecting pieces x ₁ and x ₂ are fixed by gluing or the like, it is not easy to return them to the original sheet as shown in the development view of FIG.

In addition, since it is fixed only by the connecting pieces x ₁ and x ₂ , the strength as a packaging box is insufficient, and it may be deformed due to stacking or the like, which causes a problem in appearance.

Therefore, the present invention has been made in view of the above-mentioned problems, and an object thereof is excellent in workability during assembly,
It is also an object of the present invention to provide a packaging box structure that can be easily unpacked, yet has sufficient strength as a packaging box and is not deformed due to stacking.

(Means for Solving the Problems) In order to achieve the above object, the box structure of the present invention is, as shown in FIG. ₁ , a packaging piece which is continuous with each other through fold lines a ₁ , a ₂ , a _{3. b 1, b 2, b 3} , b 4 together comprise a, an end face packing pieces d _1, d ₂ disposed on both sides of said packaging piece b _2, said wrapping strip through the end face packing pieces d _1, d ₂ In the structure of the box in which the both sides of the packaging pieces b ₁ and b ₃ adjacent to b ₂ are joined to form a box and the object to be packaged is loaded, fold lines are formed on both sides of the packaging pieces d ₁ and d ₃ , respectively. The inner fold line h is formed on the diagonal line of the rectangle that is continuous with the end face wrapping pieces b ₁ and b ₂ through the fold line f and has two sides of the fold lines e and f. The formed double-sided folded piece g, the end surface folded-in piece j separated from the left-sided folded-up piece b _{4 by} the cut l on both sides of the left-sided folded piece b ₄ through the folding line i, and the outer edge of the above-mentioned folded piece b ₁ . And the polygonal lines m on both sides In the structure of the box, characterized by comprising an outer folding member c having a small piece c _1, c ₂ which is continuously and over.

Further, the width of the packaging pieces b ₂ and b ₄ is n times the width of the packaging pieces b ₁ and b ₃ , and it is possible to adopt a structure in which n pieces of articles to be packaged are loaded.

It is also desirable to provide perforations along the inner fold line h, and further, the box of the present invention can be fixed by winding the binding band 3 around the outer circumference of the box 1 and joining them.

(Operation) Therefore, the box can be easily formed simply by folding along the fold line, and by pushing the small pieces c ₁ and c ₂ along the inner wall surface of the end face folding piece j, the packaging piece b ₁ is locked. The assembled state can be maintained, and the box does not expand during the assembly work until the band 3 is wound.

Further, since the folded pieces g on both sides are positioned so as to be along the inner wall surface, they serve to maintain the overall strength of the box body 1 and prevent the shape from being collapsed during stacking or the like. When assembling the box, there is no need for a stapler or staple, and the number of manufacturing steps after die cutting is reduced, resulting in low cost.

First Embodiment Hereinafter, a first embodiment of the present invention will be specifically described with reference to FIGS. 1 to 3. Since the basic structure of the box is the same as that of the conventional example, the same components and parts are designated by the same reference numerals and the description thereof will be omitted.

The box 1 is formed with double-sided folded pieces g at both ends of the packaging pieces b ₁ and b ₃ and the end surface packaging pieces d ₁ and d ₂ . A fold line e is formed at the boundary between the double-sided folded pieces g and the packaging pieces b ₁ and b _3, and a fold line f is formed at the boundary between the end surface packaging pieces d ₁ and d ₂ . And these two folding lines e, f
Have the same length, and an inner folding line h is formed on a diagonal line of the both-side folding pieces g having a rectangular shape having two folding lines e and f as two pieces. In addition, end face folding pieces j separated from the both-side folding pieces g by a notch l are formed at both ends of the packaging piece b ₄ . Further, a folding line i is formed at the boundary between the packaging piece b ₄ and the end face folding piece j. Further, an outer folding piece c is formed on the outer edge of the remaining packaging piece b ₁ . Then, small pieces c ₁ and c ₂ are formed at both ends of the outer folded piece c, and a fold line m is further formed at the boundary between the outer folded piece c and the small pieces c ₁ and c ₂ .

The procedure for assembling the box 1 will be described below with reference to FIGS. 3 (a), (b), (c) and (d).

Folding the triangular FIG. 3 (a) above both sides of both ends of the packaging strip b ₃ as shown in folding piece g an inner fold line h.

Next, as shown in FIG. 2B, the end face folding piece j folded inward in the box 1 along the folding line i is folded along the folding line a _{3 into} the end face packaging piece d ₂
Fold it along the inner wall of. In this state, the object to be packaged 2, for example, a roll of agricultural PVC sheet is loaded.

Further, as shown in FIG. 3C, the both side folded pieces g at both ends of the packaging piece b ₁ are folded along the inner folding line h in a triangle like the both side folded pieces g at both ends of the packaging piece b _3. Simultaneously with the insertion, the small pieces c ₁ and c ₂ are folded so as to overlap the outer folding piece c, and the outer folding piece c is further provided on both ends of the packaging piece b ₁ and the gap between the two folding pieces g and the packaging piece b ₄ . Insert into Then, as shown in FIG. 3D, the small pieces c ₁ , c ₂
Is separated from the outer folded piece c and is inserted along the inner wall of the end folded piece j.

Therefore, it is not necessary for the small pieces c ₁ and c ₂ to lock the separation of the packaging pieces b ₁ and b ₄ and to hold the band 3 with at least one hand.

Next, it is fixed with a binding band 3 made of a synthetic resin that is wound and joined to the outer periphery thereof.

Due to such a structure, the packaging pieces b ₁ and b ₃ are reinforced at both ends thereof by the both side folding pieces g, and the end surface packaging pieces d ₁ and d ₂ are reinforced by the end surface folding pieces j. Even if the boxes 1 are piled up, the strength of both ends of the packaging box is sufficiently maintained and they are not deformed.

(Second Embodiment) Next, a second embodiment of the present invention will be described.

In this embodiment, the width of the packaging pieces b ₂ and b ₄ in the above embodiment is set to be n times the width of the packaging pieces b ₁ and b _{3 so} that n pieces of articles to be packaged can be loaded. Suitable for transporting many items to be packaged together. For example, when trying to create a box in which two items to be packaged are loaded, the packaging pieces b ₁ , b
_It can be created by making ₃ double the width. Since the area of the paper sheet of the box loaded with two objects to be packaged is less than twice the area of the paper sheet of the box loaded with one object to be packaged, the objects to be packaged are packed together. This will reduce the cost because the amount of paper used will be reduced.

In addition, since the perforations are provided along the inner folding line h in each of the above-described embodiments, the box 1 can be easily assembled. Further, the corner portions of the end surface wrapping piece j may be arcuate, and in this case, the end surface wrapping piece j can be easily fitted, and similarly, the corner portions of the small pieces c ₁ and c ₂ on both sides of the folded piece g side. Can be made arcuate to facilitate the fitting of the outer folding piece c. Alternatively, gluing or the like can be performed together.

(Effects of the Invention) As described in detail above, the present invention inserts the small pieces c ₁ and c ₂ along the inner wall surface of the end face folding piece j when assembling the box, so that the end packaging piece b ₁ Is temporarily locked in the assembled state, until the band 3 is wound on the outer circumference of the box,
Even if the band 3 is broken, the shape of the box can be maintained, and the workability of packing is improved. Moreover, the strength of the packaging box against crushing can be sufficiently secured by the folded pieces g on both sides.

And, it eliminates the work of stapling and stapling as in the past, which not only simplifies the manufacturing process but also makes it look good, and after unpacking it can be spread on a single sheet of paper, so it is not bulky. In addition, it is possible to obtain a practically excellent effect that it can be reused.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention in an assembled state,
FIG. 2 is the same development view, and FIGS. 3 (a), (b), (c),
(D) is a perspective view showing the assembling process, and FIG. 4 is a second view of the present invention.
FIG. 5 is a development view showing an embodiment, FIG. 5 is a development view of a conventional example, and FIG. 6 is a perspective view showing a state during the assembly. 1 ... box body, 2 ... to be packaged, 3 ... band, a _1, a _2, a ₃ ... polyline, b _1, b _2, b _3, b ₄ ... packaging strip, c ... outer folding piece, c _1, c ₂ ...
Small pieces, d ₁ , d ₂ ... End surface packaging piece, e, f ... Folding line, g ... Both side folding pieces, h ... Inner folding line, i ... Folding line, j ... End face folding piece, l ...
Notch, m ... broken line.

Claims (5)

[Scope of utility model registration request] 1. A well as comprising parallel fold lines a _1, a _2, packaging piece b ₁ via a a ₃ are continuous with each _{other, b 2, b 3, b} 4, said packaging piece b
The end surface wrapping pieces d _1, d ₂ disposed on both sides of the _2, the end face packing pieces d _1, d ₂
In the structure of a box in which both sides of the packaging pieces b ₁ and b ₃ adjacent to the packaging piece b ₂ are joined to form a box and a packaged object is loaded, the packaging pieces b ₁ and b ₃ on both sides of each of the _three end face wrapping lines via a fold line e, connected to the end surface packaging pieces d ₁ and d ₂ via a fold line f, and on a diagonal line of a rectangle having the fold lines e and f as two sides. A double-sided folded piece g having an inner folding line h formed therein, and an end-faced folded piece j separated from the left-sided folded piece g via a folding line i on both sides of the remaining packaging piece b _{4 by} a cut l; A box structure comprising: an outer fold piece c having small pieces c ₁ and c ₂ which are continuous on both sides of the piece b ₁ with fold lines m on both sides thereof. 2. The box according to claim ₁ , wherein the width of the packaging pieces b ₂ and b ₄ is n times the width of the packaging pieces b ₁ and b ₃ , and n pieces of articles to be packaged are loaded. Structure. 3. The box structure according to claim 1, wherein perforations are provided along the inner folding line h. 4. The box structure according to claim 1, 2 or 3, wherein the box is fixed by a band which is wound around the outer circumference of the box and joined to the box. 5. The box structure according to claim 1, 2, 3 or 4, wherein the object to be packaged is an agricultural film.