JP2001335029A - Collapsible container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pile up collapsible containers in tiers by making the container coming to the upside slid over the container placed at the downside while preventing side panels of the container placed at the downside from falling toward the outside or inside when the container coming to the upside is slid or placed at the upside, and to transfer a load applied to the side panels from above to the downside through end parts of a bottom panel. SOLUTION: Projected rails 3 are formed in projection respectively at the upper ends of side panels 2 and a center bottom part 5 to be fitted into a space between the projected rails 3 of the collapsible container 4 coming to the downside is formed at the underside of a bottom panel 1. Leg parts 6 are provided in dangling at the ends of bottom panel 1 on positions right below each of the side panels 2 excluding four corners of the bottom panel, and the underside of each of the leg parts 6 is made the same in the level as the center bottom part 5. Downwardly opened grooved rails 7 each having its inner faces formed of the outside end face of the center bottom part 5 and each of the inner faces of the leg parts 6 are provided. The end parts of each of the grooved rails 7 and parts where the leg parts 6 are not existent at four corners at the underside of the bottom panel 1 are connected together. The grooved rails 7 of the collapsible container 4 coming to the upside can be slid and fitted onto the projected rails 3 of the collapsible container 4 at the downside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding container.

[0002]

2. Description of the Related Art Conventionally, a folding container which can be selected from two types, a folding type in which side plates are attached to four sides of a rectangular bottom plate so as to be freely rotatable and the side plates are turned down, and a box-like assembly type in which the side plates are raised. It has been known.

[0003] This conventional folding container can be stacked vertically in multiple stages in a state of being assembled in a box shape. Then, when stacking the folded containers in a box shape in a vertically stacked manner, the following configuration is used to prevent the folded containers from shifting. That is, as shown in FIG. 17 and FIG. 18, a portion of the bottom surface of the bottom plate 1 of the folding container 4, except for the end outer periphery, is protruded downward to form a protruding bottom portion 20, and the lower folding box-like assembly is formed. When the upper folding container 4 assembled in a box shape is placed on the container 4, the projecting bottom 20 of the upper folding container 4 is closed by the upper opening of the lower folding container 4 surrounded by the upper ends of the four side plates 2. The outer peripheral step 21 having no protruding bottom 20 at the outer peripheral portion of the bottom plate 1 of the upper folding container 4 is placed on the upper end surface of each side plate 2 of the lower folding container 4. .

However, when the conventional folding container 4 having the above-described structure is assembled in a box shape as shown in FIG. The portion located just below the side plate 2 is an outer peripheral step portion 21 and is not installed on the floor, so that the outer peripheral portion of the bottom plate 1 is easily bent in the direction of arrow B. Here, in the case of a non-foldable type container in which the bottom plate 1 and the side plate 2 are integrally formed, the bending of the bottom plate 1 and the deformation of the side plate 2 can be further suppressed by being an integrally formed product, since they are integrally formed. In the folding container 4, the side plate 2 is only rotatably attached to the bottom plate 1. Therefore, when the bottom plate 1 tries to bend in the direction of arrow B, the side plate 2 easily falls down around the axis, and the box state is changed. In some cases, it cannot be held.

In the prior art, as shown in FIG. 18, when assembled in a box shape and stacked vertically in multiple stages, the side plates 2 of the lower foldable container 4 are mounted on the outer side of the side plate 2 around the rotation axis (C). Direction), the force cannot be restricted by the upper folding container 4,
A portion other than the protruding bottom portion 20 of the upper folding container 4 may also fit into the lower folding container 4 to cause an unstable stacking state.

When stacking and placing the upper folding container 4 on the lower folding container 4 assembled in a box shape, the upper folding container 4 is tilted so that the tip of the protruding bottom 20 is folded into the lower folding container. Container 4
The upper and lower stacking operations are performed by inserting the protruding bottom 20 of the upper folding container 4 into the upper opening of the lower folding container 4 while sliding the upper folding container 4 by sliding the upper folding container 4 into the upper opening. In this case as well, in this case, a force is applied to the side plate 2 of the lower folding container 4 at the lower stage so as to fall outward about the rotation axis, so that the distance between the side plates 2 is widened even a little. Therefore, there is a problem that the upper folding container 4 falls into the lower folding container 4, and therefore, it is difficult to stack the folding containers 4 while sliding the folding containers 4.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a folding container in which the folding containers are assembled in a box shape and stacked vertically, or stacked vertically. When unloading, it is easy to slide the upper foldable container against the lower foldable container, and also prevent the side plate of the lower foldable container from falling down or out when sliding or stacked. Foldable container capable of transmitting the load from the side plate vertically downward through the end of the bottom plate even when a load is applied from above the side plate, thereby preventing deformation of the end of the bottom plate and falling down of the side plate. It is an object to provide

[0008]

In order to achieve the above-mentioned object, a folding container according to the present invention has a folded form in which side plates 2 are rotatably mounted on four sides of a rectangular bottom plate 1 and the side plates 2 are turned down. 2 is a foldable container that can be selected from two forms, a box-like assembly form in which the upright 2 is set up, and a rail projection 3 projecting from at least upper ends of a pair of side plates 2 opposed to each other, and a box-like form is formed on a lower surface of the bottom plate 1. A central bottom portion 5 is fitted between the opposed rail projections 3 of the lower folding container 4 assembled at the bottom, and a leg portion 6 is suspended from a portion of the end portion of the bottom plate 1 located directly below the side plate 2, Both inner side surfaces form a lower opening rail groove 7 constituted by the outer end surface of the central bottom portion 5 and the inner surface of the leg portion 6, and the rail groove 7 of the upper folding container 4 is replaced with the lower folding container in a box-like assembly form. 4 rail projections 3 It is made configured such that it can be fitted slidably and is characterized in.
With such a configuration, when the folding containers 4 assembled in a box shape are vertically stacked, the rail groove 7 is formed with the rail protrusion 7 of the lower folding container 4 in a state where the upper folding container 4 is inclined obliquely. 4, the upper folding container 4 can be easily overlapped with the lower folding container 4 by sliding the upper folding container 4 in this state. Moreover, since the rail groove 7 of the lower opening, whose inner side surfaces are formed by the outer end surface of the central bottom portion 5 and the inner side surface of the leg portion 6, is fitted into the rail protrusion 4 in a state of being stacked vertically, the lower folding container Even if a force is exerted on the side plate 2 of the base plate 4 so as to incline outward or inward around the pivotal support portion with the bottom plate 1, the outer end surface or the leg 6 of the central bottom 5 constituting both inner surfaces of the rail groove 7. Of the side plate 2 can be prevented from falling on the inner side surface of the side plate.

Further, it is preferable that the leg portion 6 is provided vertically at a portion of the end portion of the bottom plate 1 immediately below the side plate 2 except for the four corners. With such a configuration, when stacking the box-shaped folded container 4 vertically,
With the upper folding container 4 inclined obliquely,
The rail groove 7 can be smoothly fitted into the rail projection 4 of the lower foldable container 4 from the portion where the leg 6 at the corner of the upper foldable container 4 does not exist, and the upper foldable container 4 can be slid. is there.

Preferably, the lower surface of the leg 6 and the lower surface of the central bottom 5 are at the same level. With this configuration, even if a load is applied to the side plate 2 of the folding container 4 assembled in a box shape from above, the side plate 2 at the end of the bottom plate 1 is formed.
Of the side plate 2 can be transmitted vertically downward through the leg 6 at the end of the bottom plate 1, so that the legs 6 provided directly below the bottom plate 1 are grounded together with the central bottom portion 5. It is possible to prevent a fall that attempts to rotate around a pivot portion.

A rail projection 3 is provided near the inner surface of the upper end surface of the side plate 2, and an outer holding projection 8 is provided near the outer surface of the longitudinal end of the upper surface of the side plate 2, and a central bottom portion is provided. Side projections 9 are projected from the four corners outside surfaces of the upper folding container 4 on the inner side surface of the outer holding projection 8 of the lower folding container 4 in a box-like assembled state. It is preferable that the side surfaces be in contact with each other. With such a configuration, when the folding containers 4 assembled in a box shape are vertically stacked, the stacking can be performed by sliding the rail grooves 7 into the rail protrusions 4 as described above. In the state, the side projection 19 abuts on the outer holding portion 8, so that the upper folding container 4 can be held so as not to be shifted with respect to the lower folding container 4.

Further, it is preferable that the lower surface of the leg portion 6 of the upper folding container 4 be placed on the upper end surface of the side plate 2 of the lower folding container 4 in the box-like assembled state. With this configuration, the legs 6 of the upper folding container 4 are placed on the upper surface of the side plate 2 of the lower folding container 4 in a state where the folding containers 4 assembled in a box shape are vertically stacked, and The load transmitted through the side plate 2 of the folding container 4 can be transmitted to the side plate 2 of the lower folding container 4 via the leg 6 as it is.
The load transmitted via the side plate 2 can be transmitted to the floor surface by the leg portion 6 that contacts directly below the side plate 2, and the load transmitted via the side plate 2 from above can be smoothly transmitted to the floor surface.

[0013]

Embodiments of the present invention will be described below.

The folding container 4 of the present invention comprises a pair of first side plates 2 rotatably mounted on a pair of opposite sides of a rectangular bottom plate 1 made of synthetic resin, and another pair of opposite sides. And a pair of second side plates 2 rotatably mounted on
After folding the pair of first side plates 2 and folding the pair of second side plates 2 in a state where the pair of second side plates 2 are tilted, and raising the pair of second side plates 2b, the pair of first side plates 2 are raised to form a box. It is designed to be assembled into a shape.

The folding container 4 is of a type in which the bottom plate 1 has a rectangular shape and becomes a rectangular shape in a plan view when folded and becomes a rectangular box in a plan view when assembled in a box shape;
There is a type in which the bottom plate 1 is square and becomes a square in a plan view when folded and becomes a box in a square in plan view when assembled in a box shape. In the present invention, any of the above types of folding containers is used. Although it may be possible, the attached drawings show an embodiment in which the bottom plate 1 has a rectangular shape. Hereinafter, a case where the bottom plate 1 is rectangular will be described with reference to the accompanying drawings. In the following description, the first side plate 2 is described as a long side plate 2a and the second side plate 2 is described as a short side side plate 2b.

A long side plate 2a is rotatably attached to each pair of long sides of the rectangular bottom plate 1 made of a synthetic resin. A short side plate 2b is rotatably attached to each side of the side.

Both the long side plate 2a and the short side plate 2b have their lower ends rotatably attached to the bottom plate 1 by horizontal shaft portions 9a and 9b.

Here, the height positions of the respective pivotal support portions of the paired long side plates 2a with respect to the bottom plate 1 (the height positions of the horizontal shaft portions 9a, 9a) are at the same height position. . In addition, the height position (the height position of the horizontal shaft portions 9b, 9b) of the respective pivotal support portions of the paired short side plates 2b with respect to the bottom plate 1 is the same height position. The pivotal position of the long side plate 2a to the bottom plate 1 (the height position of the horizontal shaft portions 9a, 9a) and the short side plate 2a
b at the height position of the pivotal portion with respect to the bottom plate 1 (horizontal shaft portions 9b, 9b
Height position) and the side plate 2 on the short side
The height of the pivot portion of the side plate 2a on the long side is made higher than the height position of the pivot portion of b. In folding, the side plate 2b on the short side is first folded on the bottom plate 1. Then, the side plate 2a on the long side is folded and overlapped on the side plate 2a on the end side.

In the embodiment shown in the accompanying drawings, a rising protrusion 12a is provided on the long side of the upper surface of the bottom plate 1, and a horizontal shaft portion 9a on the long side is located in the recess of the rising protrusion 12a. are doing.

A rising protrusion 12b is provided on the short side of the upper surface of the bottom plate 1, and the rising protrusion 12b is provided.
The horizontal axis portion 9b on the short side is located in the concave portion.

A rail projection 3 is provided near the inner surface of the upper end surface of the long side plate 2a. The rail projection 3 is formed continuously over substantially the entire length of the long side plate 2a in the longitudinal direction, or a plurality of rail projections 3 are intermittently formed in the long direction of the long side plate 2a. In the embodiment shown in the accompanying drawings, the rail projection 3 is not provided on the upper end surface of the short side side plate 2b, but the rail protrusion 3 is provided on the inner side of the upper end surface of the short side side plate 2b. Is also good. Outer holding projections 8 are protrudingly provided on the upper side of the long side side plate 2a and the short side side plate 2b near the outer surface of both ends in the longitudinal direction. The outer holding projection 8 projects above the rail projection 3.

When the folding container 4 is assembled in a box shape, the short side plate 2b is supported at both ends of the inner surface of the long side plate 2a by supporting the end of the outer surface of the short side plate 2b. A support projection 10 is provided to prevent falling outside. The support projection 10 is formed with an engagement recess 11 which opens in a direction along the inner surface of the long side plate 2a. A locking portion 22 is provided at an end of the long side plate 2a. A notch is formed adjacent to the locking portion 22 so that a U-shaped portion surrounded by the notch can be elasticized. As an operating unit 22a.

Steps 13 are formed at both ends of the outer surface of the side plate 2b on the short side, and the step 13 is provided with an engagement projection 14 that is fitted into the engagement recess 11. Further, a locked portion 20 is provided at an end of the side plate 2b on the short side.

As shown in FIG. 7 to FIG. 9, a central bottom portion 5 is formed on the lower surface of the bottom plate 1 so as to be fitted between the opposed rail projections 3 of the lower folding container 4 assembled in a box shape. In the embodiment shown in the accompanying drawings, the size of the central bottom 5 in plan view is the same as the size of the upper opening of the folding container 4 assembled in a box shape. Legs 6 are provided vertically at portions of the end portion of the bottom plate 1 located directly below the side plate 2 except for the four corners. The leg 6 is provided so as to form a gap with the outer surface of the central bottom 5,
Further, leg portions 6 may be provided continuously over the longitudinal direction of the portion of the end portion of the bottom plate 1 immediately below the side plate 2 except for the four corners, but a plurality of leg portions 6 may be provided in the longitudinal direction as shown in the attached drawings. May be provided intermittently. The lower surface of the leg 6 and the lower surface of the central bottom 5 are at the same level. As described above, a gap is formed between the outer surface of the central bottom portion 5 and the inner surface of the leg portion 6. And the rail groove 7 of the lower opening. The rail groove 7 is located directly below the rail protrusion 3 below the side plate 2a on the long side, and the end of the rail groove 7 has four legs 6 at four corners on the lower surface of the bottom plate 1. It communicates with the part that does not.

Side projections 9 project from the outer surfaces of the four corners of the central bottom 5 on both the short side and the long side.

When using the folding container having the above-described structure, the containers are housed and transported in a state of being assembled in a box shape as shown in FIGS. 1 to 3. Are transported or stored in a compact and folded state.

Here, in folding the box-shaped folded container, first, the paired short side side plates 2b are rotated to fall on the upper surface of the bottom plate 1, and then the paired long side sides The side plate 2a is turned down, and folded as shown in FIG.

With the long side plate 2a folded down as described above, as shown in FIG. 6, the support projections 10 provided at both ends of the long side plate 2a are connected to the long side of the bottom plate 1. It is configured to come into contact with receiving portions 16 provided at both ends on the side. As a result, the support protrusions 10 at both ends of the long side plate 2a which is folded down and folded horizontally are brought into contact with the receiving portions 16 provided at both long end portions of the bottom plate 1 so that the long side plate 2a is supported. The side plate 2a can be stably held in a horizontal state.

On the other hand, in order to assemble the folding container 4 into a box shape for use, first, the both side plates 2b on the long side that are lying down are turned upright, and then both the side plates 2a on the short side. And assembled in a box shape as shown in FIGS. 1 to 3.

In this box-shaped assembly, both ends of the inner surface of the side plate 2a on the long side are opposed to both end surfaces of the side plate 2b on the short side opposite thereto, and the side plate 2a on the long side is inside. The support projection 10 is supported by the step 1
3, the side plate 2b on the short side is prevented from falling outward by the support protrusion 10, and the engagement protrusion 13 is engaged with the engagement recess 11, so that the long side plate 2a falls outward. And the locking portion 22 is elastically locked to the locked portion 20, so that the short side plate 2b is prevented from falling inward.

In this way, the folding container 4 is assembled in a box shape, and the stored items are stored, transported, or stored in the box shape.

When the folding container 4 having the above structure is assembled in a box shape and installed on the installation surface A, the bottom plate 1 has the center bottom 5 and the leg 6 installed on the installation surface A. Here, the leg 6 is provided at the end of the bottom plate 1 directly below the side plate 2, and the leg 6 is installed on the installation surface A.
When a load is applied to the side plate 2 from above as indicated by an arrow
Although the load is transmitted from the side plate 2 to the leg 6 directly below and supported by the installation surface A, the side plate 2 is a folding container 4 pivotally supported at the lower end and capable of being turned upside down. Without the side plate 2 falling down due to the load,
The load can be transmitted directly below via the.

In some cases, the folding containers 4 assembled in a box shape are vertically stacked. In this case, as shown in FIG. 13, the folding containers 4 in the upper stage are placed on the folding containers 4 in the lower stage assembled in a box shape. In stacking and placing the containers 4, the upper folding container 4 is inclined and the rail groove 7 is formed from a portion of the upper folding container 4 where the legs 6 do not exist at the corners of the lower folding container 4. The upper folding container 4 is slid in the direction of the arrow in FIG. 13 using the fitting of the rail groove 7 and the rail protrusion 3 as a guide, and the upper folding container 4 is positioned directly above the lower folding container 4.
With the rail groove 7 of the upper folding container 4 fitted in the rail projection 3 of the lower folding container 4, the lower surface of the leg 6 of the upper folding container 4 is placed on the upper end surface of the side plate 2 of the lower folding container 4. In the box-like assembled state, the side projection 9 of the upper folding container 4 is placed on the inner side surface of the outer holding projection 8 of the lower folding container 4.
Abut the outer surface of the

When the box-shaped folded containers 4 are vertically stacked, the upper folded container 4 is easily slid by sliding the upper folded container 4 while the upper folded container 4 is inclined. Can be overlapped on the lower folding container 4, and in the state of being overlapped vertically, both inner surfaces are formed by the outer end surface of the central bottom portion 5 and the inner surface of the leg portion 6. Since the rail groove 7 is fitted into the rail protrusion 4, even if a force is applied to the side plate 2 of the lower foldable container 4 outward or inward centering on the pivotal portion with the bottom plate 1, the rail groove 7 The side plate 2 can be prevented from falling down at the outer end surface of the central bottom portion 5 or the inner side surface of the leg portion 6 constituting both inner side surfaces.

When lowering the upper folding container 4, one end on the long side of the upper folding container 4 is lifted upward to incline the upper folding container 4, and in this state, the upper folding container 4 is tilted. 4, the rail groove 7 and the rail protrusion 3 slide in a fitted state, and the upper folding container 4 moves smoothly without falling into the upper opening of the lower folding container 4 on the way. It can be pulled down.

By the way, when the folding container 4 assembled in a box shape is folded, the connection between the long side plate 2a and the short side plate 2b is released as shown by an arrow in FIG. The locked portion 20 is released from the locking portion 22 by pressing the locked portion 20 by the operating portion 22a by pressing the portion 22a, and in this state, the side plate 2b on the short side is tilted inward to form the engagement protrusion. 14 can be removed from the engagement recess 11.

In each of the above embodiments, the folding container 4 has been described in which the shorter side plate 2b is first laid down and then the longer side plate 2a is laid down before folding. In this case, it is a matter of course that the folding container 4 may be configured such that the side plate 2a on the long side is first tilted first, and then the side plate 2b on the short side is tilted later.

[0038]

According to the first aspect of the present invention, as described above, at least the pair of side plates opposed to each other are provided with the rail projections at the upper ends thereof, and the bottom plate has a box-shaped lower surface. A central bottom portion to be fitted between the opposed rail protrusions of the assembled lower folding container is formed, and legs are suspended from a portion located directly below the side plate at the end of the bottom plate. Since the rail groove of the lower opening formed by the outer end face and the inner surface of the leg is formed, and the rail groove of the upper folding container is slidably fitted into the rail projection of the lower folding container in the box-shaped assembly form, The upper foldable container can be easily laid on the lower foldable container by sliding the upper foldable container with the rail groove fitted into the rail protrusion of the lower foldable container. In addition, the rail groove of the lower opening, whose inner surfaces are formed by the outer end surface of the central bottom and the inner surface of the legs, is fitted into the rail protrusion in the state of being vertically stacked, so that the lower folding container Even if a force is applied to the side plate so as to tilt outward or inward around the pivotal portion with the bottom plate, the outer end surface of the central bottom or the inner surface of the leg, which constitutes both inner surfaces of the rail groove, will not be used. It is possible to prevent falling.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, in addition to the effects of the first aspect, the leg located at the end of the bottom plate just below the side plate except for the four corners is provided. Since the part is suspended, the folding container 4 assembled in a box shape
When stacking the upper and lower containers, the upper folding container is inclined obliquely, and the rail groove is smoothly fitted into the rail projection of the lower folding container from the part where the legs at the corners of the upper folding container do not exist With this, the upper folding container can be slid.

According to the third aspect of the invention, in addition to the effects of the first or second aspect, the lower surface of the leg and the lower surface of the central bottom are at the same level.
Even if a load is applied to the side plate of the folded container assembled in a box shape from above, the leg provided directly below the side plate at the end of the bottom plate is grounded together with the central bottom, so that the load from the side plate is transferred to the leg at the end of the bottom plate. And can be transmitted vertically downward through the base plate to prevent it from rotating around the pivotal portion of the side plate, and can stably hold the folded container assembled in a box shape.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a folding container according to the present invention is assembled in a box shape.

FIG. 2 is a side view of the same.

FIG. 3 is a sectional view of the same.

FIG. 4 is a perspective view of an upper surface side of a corner portion of the same.

FIG. 5 is a perspective view of a lower surface side of a corner part of the same.

FIG. 6 is a perspective view showing a state in which the folding container is folded.

FIG. 7 is a bottom view of the bottom plate.

FIG. 8 is a front view of a bottom plate of the above.

FIG. 9 is a side view of the bottom plate.

FIG. 10 is a perspective view showing a state in which the short side plate is being erected after the long side plate is erected.

FIG. 11 is a perspective view of the short-side side plate as seen from another direction in the middle of standing up after the long-side side plate is raised.

12A is a cross-sectional view of a locking portion between a locking portion and a locked portion according to the first embodiment, and FIG. 12B is a sectional view illustrating a short-side side plate after the long-side side plate according to the first embodiment is erected. It is sectional drawing in the middle of standing up.

FIG. 13 is a front view in the middle of sliding and stacking the foldable containers assembled in the same box shape.

FIG. 14 is a front view showing a state in which the folding containers assembled in a box shape are vertically stacked.

FIG. 15 is a cross-sectional view showing a state in which the folding containers assembled in a box shape are vertically stacked.

FIG. 16A is a cross-sectional view of the outer holding projection portion in a state where the folding containers assembled in the same box shape are vertically stacked, and FIG. 16B is a cross-sectional view of the folding containers assembled in the same box shape. FIG. 5 is a cross-sectional view of a fitting portion between a rail protrusion and a rail groove in a state where the rail is stacked.

FIG. 17 is a cross-sectional view showing a state in which a conventional folding container is assembled in a box shape.

FIG. 18 is a cross-sectional view showing a state where the folding containers assembled in a box shape according to the conventional example are vertically stacked.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Side plate 2a Long side side plate 2b Short side side plate 3 Rail protrusion 4 Folding container 5 Central bottom 6 Leg 7 Rail groove 8 Outer holding protrusion 9 Side protrusion

Claims (3)

[Claims] 1. A folding container which can be selected from two types, a folding type in which side plates are attached to four sides of a rectangular bottom plate so as to be freely rotatable and the side plates are turned down, and a box-like assembly type in which the side plates are raised. A projecting rail is formed at the upper end of at least a pair of opposed side plates, and a central bottom portion is formed on the lower surface of the bottom plate to be fitted between the opposed rail projecting portions of the lower folding container assembled in a box shape. A leg is suspended from the end of the bottom plate directly below the side plate, and both inner side surfaces form a rail groove of a lower opening composed of an outer end surface of the central bottom portion and an inner side surface of the leg portion. A folding container, wherein the rail groove of the upper folding container can be slidably fitted into the rail projection of the lower folding container in an assembled form. 2. The folding container according to claim 1, wherein a leg is vertically provided at a portion of the portion located directly below the side plate at an end of the bottom plate except for four corners. 3. The lower surface of the leg portion and the lower surface of the central bottom portion are at the same level.
The folding container as described.