JPH09315422A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding container which can be quite easily folded when it is not used and whose bottom and side panels do not bend easily when used. SOLUTION: This container 1 is provided with a pair of No.1 side panels 12 facing each other in No.1 direction, a pair of No.2 side panels 14 facing each other at right angles to No.1 direction and a bottom panel 10. A folding line 20 is provided from roughly the center of the upper side of No.1 side panel 12 to both edges of the bottom panel 10 side respectively, and the bottom panel 10 is made up of 1 flat piece panel.

Description

Detailed Description of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable container, and more particularly to a foldable container having a high load bearing capacity.

[0003]

2. Description of the Related Art Conventionally, foldable containers have been developed in various forms made of corrugated cardboard and synthetic resin in order to reduce the space for storing them when not in use and storing them when returning after use. It had been.

For example, the invention described in JP-A-8-58766 is known. Referring to FIG. 9, the basic structure of the conventional example is that two bottom substrates 32, 32 are arranged in parallel, and the inner ends of the two bottom substrates 32, 32 are connected in the longitudinal direction by a hinge tape. Therefore, the bottom plate 30 is provided, and the bottom plate 30 is configured such that it can be folded in two with the inner ends of the two bottom substrates 32, 32 as boundaries.

Then, the first side plates 34, 34 are erected on both sides of the bottom plate 30 in the lateral direction with the folds as boundaries.
It is arranged so that it can be bent freely through folds.

On the other hand, in the longitudinal direction of the bottom plate 30, between the first side plates 34, 34, the second side plates 36, 36 are respectively bendable to the first side plate through the folds. It is lined up. In addition, the bottom plate 3 of these second side plates 36, 36
Reinforcing pieces 38, 38 are foldably connected to the 0 side with a fold line as a boundary, and are bent at right angles to the second side plates 36, 36 so that they can be stacked on the bottom plate 30. It is provided.

Further, at the central portions of the above-mentioned second side plates 36, 36 and reinforcing pieces 38, 38, folds are respectively formed on the extension lines of the inner ends of the two bottom substrates 32, 32 constituting the bottom plate 30. By being provided, the second side plates 36, 3
6 and the reinforcing pieces 38, 38 can be folded in two, and the bottom plate 30 and the first side plate 3
4, 34, second side plates 36, 36 and reinforcing pieces 38, 3
8 are provided so as to be bendable, respectively, and are folded in two so as not to be bulky when not in use.

However, when the object to be packaged is stored, the bottom plate 30 is apt to be bent in a cross-section with the inner ends of the two bottom substrates 32, 32 as a boundary, and receives the load. Since the second side plates 36, 36 and the reinforcing pieces 38, 38 are also easily bent at their folds, they cannot hold the assembled shape of the container, and the objects to be packaged are likely to be scattered or damaged. There was a problem.

[0009]

The problem to be solved by the present invention is to eliminate the drawbacks of the prior art described above, and the purpose thereof is to prevent the bottom plate and the side plates from being easily bent during use. It is to provide a foldable container. Another object of the present invention is to provide a container in which the bottom plate and the side plates do not bend during use, while the whole can be folded very easily.

[0010]

A first collapsible container of the present invention comprises a pair of first side plates facing each other in a first direction and a pair of second side plates facing each other in a direction orthogonal to the first direction. In the container provided with the side plate, the bottom plate, and the folding mechanism, the bottom plate is made of one flat plate.

A second collapsible container of the present invention is the same as the first collapsible container,
The folding mechanism is composed of folds provided respectively from the substantially central portion of the upper side of the pair of first side plates to the both ends on the bottom plate side, of the two pairs of side plates facing each other, which are continuously provided from the bottom plate. Is. When not using the container, fold the outer side portion of each of the first side plates along the fold into the inside of the container together with the second side plate. Since the first side plate and the second side plate are connected, When the second side plate is pushed down inside the container, the portion outside the fold of the first side plate is folded inward so as to interlock with this.
At the same time, the inner portion of the fold of the first side plate is folded so as to push it down to the outside of the container. Therefore, when folding the container, it is not necessary to perform a complicated work such as removing any part of the container.

A third collapsible container according to the present invention is the same as the second collapsible container,
A side plate reinforcing piece that is bendable inside the first side plate and is fitted between the second side plates is provided between the upper side of the first side plate having a fold and the intersection of the fold. It is what Since the side plate reinforcing piece is substantially fitted between the second side plates, the second side plate is held upright from the inside of the container so that the second side plates do not fall down inside the container.

A fourth foldable container according to the present invention is the third foldable container described above,
Fitting pieces are provided on both sides of each side plate reinforcement piece,
It is characterized in that the pair of second side plates are provided with fitting pits to which the fitting pieces of the side plate reinforcing pieces fit, on both side ends of the pair of second side plates that are adjacent to the adjacent first side plates. The fitting pit provided in the second side plate is provided at a side end serving as a boundary with the first side plate so that the side plate reinforcing piece is fitted in close contact with the first side plate.

A fifth foldable container according to the present invention is the foldable container according to any one of the first to fourth aspects, further comprising a delusion preventing plate that is substantially fitted to the opening of the container body on the back side of the bottom plate. It is characterized by that.

A sixth foldable container of the present invention is the foldable container according to any one of the first to fifth foldable containers, wherein a foldable reinforcing member is provided at a portion corresponding to a boundary between the folding mechanism and each side plate. The folding mechanism and the side plates are provided so as to straddle the boundary between the side plates. Since the folding mechanism that repeats the operation of folding and assembling is easily damaged, the strength of the folding mechanism can be improved by providing a reinforcing material for reinforcing the folding mechanism on the side plate across the folding mechanism. Similarly, the strength of the boundary between the side plates can be improved by the reinforcing material.

A seventh foldable container of the present invention is the foldable container according to any one of the first to fifth foldable containers, wherein a folding member is provided at a portion corresponding to a boundary between the folding mechanism and each side plate. It is characterized in that it is provided on the inner surface of the side plate straddling the boundary between the folding mechanism and each side plate.

An eighth foldable container of the present invention is the foldable container according to any one of the first to fifth foldable containers, wherein a foldable reinforcing member is provided at a portion corresponding to a boundary between the folding mechanism and each side plate. The folding mechanism is provided inside the side plate across the boundary between the folding mechanism and each side plate. The reinforcing material is provided inside the side plate without exposing the surface of the side plate.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an embodiment of a foldable container 1 according to the present invention. FIG.
As shown in FIG. 1, the container 1 includes a bottom plate 10, a first side plate 12 facing in a first direction (longitudinal direction of the container 1), and a second side plate facing in a direction orthogonal to the first direction (short direction of the container 1). The side plate 14 and the side plate reinforcing piece 18 are provided. As shown in FIG. 4, this container 1 is constructed by cutting a piece of corrugated board material according to a development view, but the material is not limited to corrugated board, and synthetic resin such as synthetic resin may be used.

The bottom plate 10 is provided in a square shape and is made of a single flat corrugated cardboard. Therefore, when the container 1 is used, it is not easily bent by the load of the packaged object. In addition, as shown in FIG. 3, in this embodiment, the delusion prevention plate 11 is provided on the back side of the bottom plate 10,
Since this is also made of a single flat corrugated cardboard without folds, the bottom plate is reinforced so that it is more difficult to bend. Similarly, the first side plate 12, the second side plate 14, and the side plate reinforcing piece 18 are also provided in a rectangular shape.

From the both ends of the connecting portion 16 for connecting the first side plate 12 and the side plate reinforcing piece 18, the first side plate 12 is first
Folds 20 are provided on both ends of the side plate 12 on the bottom plate side.

The second side plate 14 is connected to the first side plate 12. Therefore, when the second side plate 14 is folded inside the container 1, the
The portion outside the fold of the side plate 12 is folded into the inside portion of the container 1, and at the same time, the inside portion of the fold of the first side plate 12 is folded toward the outside of the container 1. (Figure 2
reference. ) In addition, such a series of folding operations is performed by the side plate reinforcing piece 1.
The same applies to the case where 8 is not provided. Further, at both ends of the second side plate 14 in the longitudinal direction of the container 1, fitting holes 24 into which fitting pieces 22 provided on a side plate reinforcing piece 18 to be described later are fitted are provided. Further, a hook hole 19 for easily removing the fitted side plate reinforcing piece 18 is provided at a side end portion of the side plate reinforcing piece 18.

A side plate reinforcing piece 18 is provided above the first side plate 12 via a connecting portion 16. When the container 1 is used, the side plate reinforcing piece 18 is bent inside the container 1 so as to come into contact with the first side plate 12, and is fitted so as to fit between the second side plates 14. This prevents the second side plate 14 from being folded inside the container 1 when the container 1 is used. The lateral length of the side plate reinforcing piece 18 is provided to be the same as the height of the first side plate 12, and when the side plate reinforcing piece 18 is bent inside the container 1, the lateral direction of the second side plate 14 is reduced. The side plate reinforcing pieces 18 are in contact with each other over the entire length. This reliably prevents the second side plate 14 from being folded inside the container 1 when the container 1 is used.

Fitting pieces 22 are provided at both longitudinal ends of the side plate reinforcing piece 18, and the side plate reinforcing piece 18 is provided inside the container 1.
When the is bent, the fitting piece 22 is fitted in the fitting hole 24 of the second side plate 14 described above. As a result, when the container 1 is used, the second side plate 1
The side plate reinforcing piece 18 fitted between the Nos. 4 and 14 is configured so as not to be easily removed.

Referring to FIG. 3, a delusion prevention plate 11 is provided on the back side of the bottom plate 10. The delusion prevention plate 11 is the bottom plate 1
The vertical and horizontal lengths are slightly shorter than zero. Therefore,
When the containers 1 are vertically stacked and used, the delusion prevention plate 11 is substantially fitted into the upper opening of the container 1. Therefore, the delusion of the stacked containers 1 in the horizontal direction is suppressed, and the containers 1 can be prevented from sliding down. For the purpose of delusion prevention, the delusion prevention plate does not necessarily have to be a single flat plate, and four delusion prevention plates should be provided at the four corners of the bottom plate so as to fit substantially into the container 1 opening. However, in the case of storing a heavy object to be packaged, it is preferable to use one flat delusion suppressing plate for reinforcing the bottom plate.

FIG. 4 is a development view of this container 1, and the container 1 according to the present invention can be easily manufactured by cutting one corrugated board as shown in the development view. This is completed by bending the two members 14a shown in FIG. 4 and fixing them by covering the ends of 14b so as to cover them. (See FIG. 5.)

Next, another embodiment will be described with reference to FIGS. 6 to 8. This embodiment is the same as the first embodiment except that a reinforcing member 40 is provided. Reinforcement 40
Is provided in the shape of a band having a thickness of about 0.2 mm and a width of about 11 mm, which is made of polyester monofilament.
The reinforcing member 40 is provided near the opening end of the container 1 so as to circulate the opening. As shown in FIGS. And the second
The side plate 14a is provided with a substantially central portion in a substantially straight line shape. Further, the reinforcing member 40 is provided between the liner 42, which is one of the liners 42 and 44, and the core 46.
And is provided by being adhered at the same time in the step of adhering the liners 42, 44 and the core 46 when manufacturing the corrugated board forming the container 1.

The reinforcing member 40 is adhered across the folds 20 to reduce the stress acting on the folds 20 in opposite directions with the fold 20 as a boundary. Therefore, it is possible to reduce the damage to the folds 20 due to the repeated folding operation and the load of the packaged object. Further, since the reinforcing member 40 is bonded across the boundaries between the first side plate 12 and the second side plate 14a, these boundaries can be protected similarly.

The reinforcing member 40 may be provided so as to straddle the fold 20 and the boundary between the side plates 12 and 14, and may be provided near the bottom plate 10 of the side plates 12 and 14.
By providing the container 1 near the open end, it is possible to protect the upper portion of the fold 20 that is particularly susceptible to stress due to the load of the packaged object. Further, the reinforcing member 40 may be provided so as to straddle the boundary between the fold 20 and the side plates 12 and 14 as necessary, and is bonded only to the boundary between the fold 20 and the side plates 12 and 14. However, in order to more surely protect the fold 20 and the boundary between the side plates 12 and 14, the reinforcing member 4 is provided so as to circulate the opening of the container 1.
It is desirable to bond 0 to securely fix the reinforcing material 40 to the container 1. The reinforcing material 40 is not limited to polyester monofilament, and may be cloth, paper or the like as long as it is a material that can be bent along the folds 20 and has a certain strength. Further, a plastic material or the like that can be bent at a portion such as the fold 20 may be used instead of the material that is bendable as a whole.

In the present embodiment, the reinforcing material 40 is adhered to the liners 42 and 44, but the present invention is not limited to this, and either of the outer surfaces of the liners 42 and 44 or the liners 42 and 44 are used.
It may be adhered to both outer surfaces of. In this case, container 1
The reinforcing member 40 can be easily provided separately from the manufacturing process of.

[0030]

The present invention is embodied in the form described above and has the following effects. By adopting a structure in which the bottom plate of the container having the folding mechanism is a single flat plate, it is possible to prevent the bottom plate from being easily bent by the load of the packaged item.

Then, of the two pairs of side plates facing each other, the folding mechanism is a fold provided from approximately the center of the upper side of the pair of first side plates to both ends on the side of the bottom plate. By adopting it, it can be easily folded without removing the side plate of the container.

Further, a side plate reinforcing piece which is bendable inside the first side plate and is fitted between the second side plates is provided between the upper side of the first side plate having the fold and the intersection of the fold. By adopting the structure, it is possible to prevent the second side plate from falling inward by fitting the side plate reinforcing piece. Therefore, when using the container, the container is folded when it is subjected to vibration or when the containers are stacked. Items to be packaged are not damaged or scattered.

Further, fitting pieces are provided on both sides of each side plate reinforcing piece, and a fitting hole for fitting the fitting pieces of the side plate reinforcing pieces is fitted to both side ends of the pair of second side plates near the adjacent first side plates. By adopting the structure provided, it becomes easy to fit the side plate reinforcing piece between the second side plates, and it is possible to more reliably prevent the second side plate from falling inward.

Further, by adopting the structure in which the delusion prevention plate that substantially fits into the opening of the container body is provided on the back side of the bottom plate, the upper and lower containers are fitted substantially when the containers are stacked and used. , Delusion in the horizontal direction is suppressed, and the stacked containers can be prevented from sliding down.

Further, by providing the reinforcing member across the folding mechanism and the boundary between the side plates, it is possible to prevent damage to the fold and the boundary and improve the durability of the fold and the boundary.

[Brief description of drawings]

FIG. 1 is a perspective view of a container according to the present invention during assembly.

FIG. 2 is a perspective view of a container according to the present invention in a folded state.

FIG. 3 is a perspective view of the container according to the present invention viewed from the back side.

FIG. 4 is an exploded view of a container according to the present invention.

FIG. 5 is a cross-sectional view of the central portion in the longitudinal direction of the container according to the present invention.

FIG. 6 is a perspective view at the time of assembling the container of another embodiment.

FIG. 7 is an exploded view of a container according to another embodiment.

FIG. 8 is a cross-sectional view of a side plate for explaining a reinforcing material bonded inside the side plate.

FIG. 9 is a perspective view of a conventional technique.

[Explanation of symbols]

 1 Container 10 Bottom Plate 11 Delusion Suppression Plate 12 First Side Plate 14 Second Side Plate 16 Connection Part 18 Side Plate Reinforcing Piece 20 Fold 22 Fitting Piece 24 Fitting Hole 40 Reinforcing Material

Front page continuation (72) Inventor Katsushi Takayama 2-65 Yamada Nishimachi, Kita-ku, Nagoya Asano Cardboard Co., Ltd. Within SP

Claims (8)

[Claims] 1. A pair of first members facing each other in a first direction.
A pair of second side plates facing each other in the direction orthogonal to the first direction, a bottom plate, and a folding mechanism, wherein the bottom plate is a flat plate. 2. The folding mechanism is composed of a fold provided from approximately the center of the upper side of the pair of first side plates of the pair of opposing side plates continuously provided from the bottom plate to both ends of the side of the bottom plate. The foldable container according to claim 1, wherein the container is foldable. 3. A foldable inside of the first side plate between the upper side of the first side plate having a fold and the intersection of the fold,
The foldable container according to claim 2, further comprising a side plate reinforcing piece fitted between the second side plates. 4. Fitting pieces are provided on both sides of each side plate reinforcing piece, and the fitting pieces of the side plate reinforcing pieces are fitted to both side ends of the pair of second side plates near the adjacent first side plates. 4. The structure according to claim 3, wherein
The foldable container described in. 5. A delusion prevention plate that is substantially fitted to the opening of the container body is provided on the back side of the bottom plate.
The foldable container according to any one of 4 to 4. 6. The side plate is provided with a reinforcing material which is bendable at a portion corresponding to a boundary between the folding mechanism and each side plate and straddles the boundary between the folding mechanism and each side plate. A foldable container according to any one of 1 to 5. 7. A reinforcing member, which is bendable at a portion corresponding to a boundary between the folding mechanism and each side plate, is provided on an inner surface of the side plate across the boundary between the folding mechanism and each side plate. The foldable container according to any one of claims 1 to 5. 8. A reinforcing member having a bendable portion corresponding to a boundary between the folding mechanism and each side plate is provided inside the side plate across the boundary between the folding mechanism and each side plate. A foldable container according to any one of claims 1 to 5. [0001]