JPH0723162B2 - Foldable cardboard box with partition - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a structure in which a single rectangular corrugated cardboard having folds, cuts, etc. at predetermined locations is bent along the folds to form an interior partition into two compartments. The present invention relates to a foldable corrugated cardboard box with a partition, which is constructed so that a box formed integrally can be folded up by almost one-touch operation.

[0002]

2. Description of the Related Art As a folding cardboard box with a partition,
For example, various ones having a cross-shaped partition for accommodating four packed strawberry packs are being considered. These conventional ones are a two-step process in which a box is folded up from a piece of cardboard with creases or cuts at predetermined locations, and then a separately made partition is incorporated into the folded box. However, in order to prevent the folded box from collapsing due to external force, multiple folding structures are provided at each of the four corners of the box to reinforce it or to fix this folding structure at multiple locations. It was provided with a complicated structure by providing a hook with a hook and its hooking hole.

[0003]

As described above, the conventional foldable corrugated cardboard box with a partition is constructed by combining a plurality of members, so that the cost for cutting these members increases. In addition to requiring a lot of time and labor for assembling, there is a problem that extra labor and cost are required for storage and transportation. Therefore, the advent of a foldable corrugated cardboard box with a partition has been desired, which can be manufactured and assembled more easily and a remarkable reduction in packaging cost can be achieved. Therefore, an object of the present invention is to eliminate the need to separately prepare a partitioning material by simultaneously forming the middle partition by the cut-and-raise method when folding a box from a single corrugated board, and also to cause by the cut-and-raised. By taking measures to close the cutout holes, the manufacturing and storage costs can be kept low compared to the conventional structure that requires multiple members and the configuration is complicated, and the box can be folded up easily and quickly. There is a foldable cardboard box provided with.

[0004]

In order to achieve the above object, a folding corrugated cardboard box with a partition according to the present invention is a rectangular corrugated cardboard having folds, cuts, etc. at a plurality of predetermined locations. , By folding along the fold,
A box that integrally forms a partition that divides the box into two sections,
It is configured to fold up easily and quickly,
At the center of the rectangular corrugated board 100 in the longitudinal direction, two main folds A and B are provided at predetermined intervals in parallel with each other in the width direction of the corrugated board, and the main folds A and B are straddled. The cut-and-raised cut C and the cut-and-raised fold D and d for forming the vertical side walls 2A and 2B in the cut-and-raised shape are provided, and the outer lateral side wall 1 is continuously provided outside each of the main folds A and B. The inner lateral side wall 5 is continuously provided on the outer side of the outer lateral side wall 1 through a fold F for double folding, and the parallel fold G is formed on the outer side of the inner lateral side wall 5.
The bottom surface 6 of the box is continuously connected through the folds, and the partition 7 is continuously connected to the outside of the bottom surface 6 of the box through the parallel folds H, and the hooking pieces 7a are extended at both ends of the partition 7. Then, when the rectangular corrugated board 100 is bent along each of the folds and folded up in the form of a box with a partition, the vertical side walls 2A and 2B are fitted at locations where the rectangular corrugated board 100 interferes with the hooking piece 7a. The notch 8 for combination is provided. The upper edges of the vertical side walls 2A and 2B are
It is good to fold it in two and reinforce it.

[0005]

In order to fold up a box integrally provided with a partition that divides the inside of the box into two compartments from one rectangular corrugated cardboard 100, first, the main folds A and B are first bent downward to make a crease. And then bent upwards, the vertical side walls 2A and 2B are pressed at both ends between the outer lateral side walls 1 and 1.
Is naturally raised upright. Then, the folding folds F, F for two-fold are folded inward in two, the inner and outer lateral side walls 1, 1 are overlapped, and the cut-out hole formed in the outer lateral wall 1 is closed by cutting and raising, and the lateral wall is reinforced. Further, if the parallel folds G and H are respectively bent downward at right angles, the box bottoms 6, 6
Is brought to the position of the bottom of the box and the box folds up, and the two middle partitions 7, 7 are piled up to stand upright in the center of the box. At this time, the hooking piece 7a is fitted into the fitting notch 8. Mated,
The folded state is firmly fixed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The foldable corrugated cardboard box according to the present invention, which is folded up into the form shown in FIG. 5, is used to store and transport one rectangular corrugated cardboard 100 shown in FIG.
Has been expanded to the state of. In the central portion of the rectangular corrugated board 100, two main folds A and B are provided in parallel with each other in the width direction of the corrugated board at intervals equal to the length of the corrugated board in the longitudinal direction. Outside the side walls of the two main folds A and B, the outer lateral side walls 1 and 1 are connected to each other through the main fold lines A and B, respectively. Between the main folds A and B, the vertical side walls 2A,
In order to form 2B in a cut-and-raised shape, a cut-and-raised cut C and a set of cut-and-raised folds D, d and D, d are provided so as to straddle between the outer lateral side walls 1, 1.

The cut-and-raised cut C is a substantially flat H as a whole.
In this embodiment, the vertical side walls 2A,
In order to reinforce the upper edge portion of 2B by folding the upper edge portion into two pieces, the portion corresponding to the horizontal image of the H-shaped cut C for cutting and raising is
Two folding folds E, E are provided at predetermined intervals on both sides of a portion of the cut-and-raised cut C, which corresponds to this horizontal image, between the two main folds A, B to form the folding pieces 3, 3. ing. On the other hand, the cut and raised fold D is a fold D provided near both edges of the rectangular corrugated board 100 in the longitudinal direction between the two main folds A and B so as to be parallel to the edges, and each end of the fold D. It has a shape in which oblique folds for cutting and raising d that connect the respective ends of both vertical image portions of the cut for use C are provided in series. For that reason,
A trapezoidal cut-and-raise auxiliary piece 4 is connected to both side ends of both outer lateral side walls 1 and 1 via main folds A and B, respectively. In addition, a cut line is provided on the back side of the cut and raised fold lines D and d to facilitate bending.

On the outside of each of the outer lateral side walls 1, 1, inner lateral side walls 5, 5 having a width substantially equal to the distance between the cut and raised folds D, D are continuously provided via a fold F for double folding. Then, box bottoms 6 and 6 are continuously provided on the outer sides of the inner lateral side walls 5 and 5 through parallel folds G, and the parallel folds H and the rectangular corrugated cardboard 100 provided at the outer ends of the box bottoms 6 and 6 are connected. Partitions 7, 7 are formed between the respective edges in the longitudinal direction. Each partition 7,
The hook 7 has hook-shaped hooking pieces 7a extending from both ends of its upper edge. Then, on the vertical side walls 2A and 2B,
Fitting notches 8 that engage with the notches of the hooking pieces 7a are provided in the center of the folding folds E for folding in two at right angles.

Next, the operation of the above configuration will be described. In order to fold up the box with the partition shown in FIG. 5 from the rectangular corrugated cardboard 100, first, as shown in FIG. 2A, 2
Add a habit so that B can stand up easily. Next, as shown in FIG. 3, both outer lateral side walls 1, 1 are bent upward along the main folds A, B to stand up.
The vertical side walls 2A and 2B whose both ends are pressed against each other are bent along the cut-and-raised folds D and d to stand up by themselves. The standing vertical side walls 2A and 2B have two upper parts
By folding back along the folding fold E, the strength can be increased (see FIG. 4).

Then, the creases F for double folding are turned upward,
When the two parallel folds G and H are respectively bent downward (in the state of FIG. 1) and bent at right angles as shown in FIG. 4, the vertical side walls 2A and 2B are cut and raised. The notch hole formed in the outer lateral side wall 1 is closed by the inner lateral side wall 5, and the inside surface of the box looks better and the lateral side wall is reinforced. Then, the bottom of the cardboard box is formed by the box bottoms 6 and 6. Further, the two middle partitions 7 and 7 are overlapped with each other, so that they are erected in the middle of the folded box. In this standing state, the cutout portions of the hooking pieces 7a provided at both ends of the middle partition 7 engage with the fitting notches 8 provided in the middle of the vertical side walls 2A and 2B, so that the middle partition 7 is in its standing state. While being fixed, the space between the vertical side walls 2A and 2B is prevented from widening, and the assembled state of the cardboard box integrally provided with the partition is firmly fixed. The operation of unfolding the folded box into one cardboard can be done easily and quickly.

In the above structure, the cardboard box
The distinction in the horizontal direction is given for convenience. Further, the position where the partition 7 is provided is not limited to the central portion in the box, and when the sizes of the two contained articles are different from each other, the partition 7 is erected at a position corresponding to the dimensional ratio thereof, The bottom of the two boxes 6,
The dimensional ratio of 6 may be changed appropriately. The same applies to the dimensional ratio of each part of the box. Also, the vertical side walls 2A, 2
The upper edge of B does not necessarily have to be folded in two, depending on the size of the box.

[0012]

As is apparent from the above description, the folding corrugated cardboard box with the partition according to the present invention is constructed so that the partition is formed by the cut-and-raise method. Has the above excellent effect. (A) Compared to the conventional corrugated cardboard box with a partition consisting of a combination of a plurality of members, it is composed of only one rectangular corrugated cardboard, and of course, not only the labor of assembling but also the cutting and processing costs of the material and the storage・ Transportation costs have been significantly reduced,
A significant reduction in the packaging cost of the goods is achieved. (B) After the partition is cut and formed, the notch hole formed on the outer vertical side wall is closed by the inner side wall. Therefore, for example, when a small fruit or vegetable is placed in the cardboard box in bulk. However, there is no risk of the contents spilling out. (C) Then, the outer lateral side wall whose strength has been reduced due to the notch hole is sufficiently reinforced by the inner lateral side wall. (D) Further, the strength of the box is sufficiently enhanced by the double partition and the vertical partition.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention in which a corrugated board box is unfolded into one rectangular corrugated board.

FIG. 2 is an explanatory diagram of how to fold a rectangular corrugated board when starting to fold it up into a box shape.

FIG. 3 is an explanatory diagram of how to fold during folding up.

FIG. 4 is a perspective view showing a state in which the bottom of the box and the partition are being formed.

FIG. 5 is a perspective view of a cardboard box that has been folded up.

[Explanation of symbols]

 100 Rectangular corrugated cardboard A, B Main folds C Cut folds D Cut folds d Cut fold folds E, F Two-fold folds G, H Parallel folds 1 Outer lateral side walls 2A, 2B Vertical side walls 3 Folded pieces 4 Cut-up auxiliary pieces 5 Inner side wall 6 Box bottom 7 Partition 7a Hook 8 Notch for fitting

Claims (2)

[Claims] 1. A box made of rectangular corrugated cardboard having folds, cuts, etc. formed at predetermined locations is bent along the folds to integrally form a partition that divides the box into two compartments. The box is constructed so that it can be folded up easily and quickly, and two main folds A are provided at the center of the rectangular corrugated board 100.
And B are provided in parallel with each other in the width direction of the corrugated board at predetermined intervals, and are straddled between the main folds A and B to form vertical side walls 2A and 2B.
Cut-raising cuts C and cut-raising folds D and d for forming the cut-raised shape are provided, and outer lateral side walls 1 are continuously provided outside the main folds A and B, respectively. The inner lateral side wall 5 is continuously provided on the outer side through the two-fold fold F, the box bottom surface 6 is continuously provided on the outer side of the inner lateral side wall 5 through the parallel fold G, and the parallel fold is provided outside the box bottom surface 6. The partition 7 is connected to each other via H, and hooking pieces 7a are extended on both side ends of the partition 7, and the rectangular corrugated board 100 is provided along each of the folds on the vertical side walls 2A and 2B. A folding corrugated cardboard box with a partition, which is characterized in that a fitting notch 8 is provided at a position that interferes with the hooking piece 7a when the box with the partition is folded up and folded up. 2. The foldable corrugated cardboard box with a partition according to claim 1, wherein the upper edge portions of the vertical side walls 2A, 2B are folded in two and folded and reinforced.