JP2003335328A - Folding container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent insects from creeping into a folding container by closing gaps formed at the joints between the ends of respective members of the container. <P>SOLUTION: The folding container 6 comprises rectangular bottom plate 1, a pair of first side plates 2a fitted to turn freely on a pair of sides of the bottom plate opposite to each other, respectively, and a pair of second side plates 2b fitted to turn freely on a pair of the other sides of the bottom plate opposite to each other, respectively. When folding the container 6, the first side plates 2a are folded down first, and the second side plates 2b are folded down on the top of the first plates. When assembling the container, the second side plates 2b are stood first, and then the first side plates 2a are stood to form a box shape. Gap closing means A are provided to close the gaps formed at the joints between the ends of respective adjacent members of the container. <P>COPYRIGHT: (C)2004,JPO

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 pair of first side plates rotatably attached to a pair of opposite sides of a rectangular bottom plate and a pair of rotatably attached to another pair of opposite sides. The second side plate is folded with the pair of first side plates folded down and the pair of second side plates is folded down, and the pair of second side plates is erected and then the pair of first side plates is erected. There is known a folding container made of synthetic resin without a mouth frame that is assembled into a box shape.

The above-mentioned synthetic resin folding container can be reused any number of times, and when it is transported to the place of use again or stored for reuse, it can be folded and carried in a low volume. Since it can be stored, it has a feature that it does not take up space for transportation and storage, is easy to handle, and can reduce distribution costs, and is used as a container for storing various stored items.

However, in the above-mentioned folding container, between the edge portions of the respective members (bottom plate, first side plate, second side plate) constituting the folding container in the state of being assembled in a box shape (that is, the edge of the bottom plate). Section and the lower edge of the first side plate, between the edge of the bottom plate and the lower edge of the second side plate, the first
Between the side end edge of the side plate and the side end edge of the second side plate), a gap communicating with the inside and outside of the folding container is formed, and insects enter from this gap. Therefore, even if the fruit is put in the synthetic resin folding container as described above and conveyed by air transportation or the like, there is a problem that insects get inside, and it is not adopted at present. For this reason, cardboard boxes that do not contain insects are conventionally used when fruits are transported by air.

However, the corrugated cardboard box is used only once and is thrown away as garbage after it has been used once, which is a big problem from the viewpoint of waste disposal and resource reuse. It is strongly desired that the folding container made of the above-mentioned reusable synthetic resin can carry fruits without insects.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in a collapsible container, the gap between the joints between the edge portions of the members is closed to prevent insects from entering. It is an object to provide a folding container that can be

[0007]

To achieve the above object, the folding container according to the present invention comprises a pair of first side plates 2a rotatably attached to a pair of opposite sides of a rectangular bottom plate 1, respectively. Folding a pair of second side plates 2b rotatably attached to the other pair of opposing sides in a state where the pair of first side plates 2a is laid down and the pair of second side plates 2b is laid down. A foldable container 6 in which a pair of first side plates 2a is erected after a pair of second side plates 2b is erected to assemble into a box shape, which is a joint part between the edge portions of adjacent members in an assembled state. It is characterized in that a gap closing means A for closing the gap is provided. With such a configuration, in the state where the folding container 6 is assembled in a box shape, the gap between the joint portions of the edge portions of the respective members is closed by the gap closing means A, and the insects are brought in from the joint portions of the respective members. You can prevent it from entering, and you can store fruits etc. in the folding container, stack the folding containers vertically and close the upper opening with a lid 40 so that the fruits stored inside will not be damaged by insects It becomes possible to carry it as it is.

In the box-shaped assembled state,
The lower end edge of the first side plate 2a and the lower end edge of the second side plate 2b overlap the peripheral edge of the bottom plate 1 inward and outward, and both end edges of each second side plate 2b are adjacent to each other in the vertical length. It is preferable to configure the gap closing means A so as to overlap both end edges of the first side plate 2a in the inward and outward directions. With such a configuration, the lower end edge of the first side plate 2a and the lower end edge of the second side plate 2b are weighted inwardly and outwardly with the peripheral edge of the bottom plate 1, and both sides of each second side plate 2b. It is possible to easily prevent insects from entering the inside from the joint portion of each member by overlapping the end edge portions inward and outward on both side edge portions of the first side plates 2a adjacent to each other in the entire length in the vertical direction.

Further, the bottom plate side overlapping portion 3 is provided at the entire peripheral edge portion including the corner portion of the bottom plate 1, and the first overlapping portion 4 is provided at the lower end edge portion and the side end edge portion of the first side plate 2a. The second overlapping portion 5 is provided at the lower end edge and the side end edge portion of the side plate 2b of the second side plate 2, and in the state assembled in a box shape, the bottom plate side overlapping portion 3 of the pair of opposite sides of the four sides of the bottom plate 1 is provided. The first overlapping portion 4 of the lower end edge of the first side plate 2a overlaps with the bottom plate side overlapping portion 3 of the other pair of opposite sides, and the second overlapping portion 5 of the lower end edge portion of the second side plate 2b. It is preferable that the first overlapping portion 4 of the first side plate 2a and the second overlapping portion 5 of the side edge portion of the second side plate 2b adjacent to the first overlapping portion 4 overlap. With such a configuration, in the entire peripheral edge portion including the corner portion of the bottom plate 1, the gaps at the joints with the lower ends of the first side plate 2a and the second side plate 2b are made to overlap with the bottom plate side overlapping portion 3, 1 side plate 2a
Can be closed by overlapping with the first overlapping portion 4 at the lower end edge portion and the second overlapping portion 5 at the lower end edge portion of the second side plate 2b, and the side end edge of the adjacent first side plate 2a can be closed. The gap at the joint between the side portion and the side edge of the second side plate 2b
The first overlapping portion 4 and the second side plate 2 on the side edge of the side plate 2a
It can be closed by overlapping with the second overlapping portion 5 at the side edge portion of b to prevent insects from entering the inside from the joint portion of each member.

Further, in the corner portion of the bottom plate 1, the bottom plate side overlapping portion 3 provided in the corner portion of the bottom plate 1 and the first side plate 2 are provided.
It is preferable that the first overlapping portion 4 of “a” and the second overlapping portion 5 of the second side plate 2b overlap three times. With such a configuration, in the corner portion of the bottom plate 1 where the ends of the three members face each other most easily, a bottom plate-side overlapping portion 3 and a first overlapping portion 4 of the first side plate 2a are formed. Since the second overlapping portion 5 of the second side plate 2b overlaps with the third overlapping portion 5 to close the gap, insects can be prevented from entering the inside from the portions where the ends of the three members face each other.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

As shown in FIGS. 1 to 5, the folding container 6 of the present invention has a pair of first side plates 2a rotatably attached to a pair of opposing sides of a rectangular bottom plate 1 made of synthetic resin. A pair of second side plates 2b are rotatably attached to the other pair of sides which are attached and opposed to each other, and a pair of first side plates 2a are attached.
6A to FIG. 6A to FIG. 6A to FIG. 6C through FIG. 6A to FIG. 6C through FIG. 6A to FIG. 6A to FIG. As shown in FIG. 10, a lid 40 is detachably attached to the upper opening of the folding container 3 assembled in a box shape.

The folding container 6 is of a type in which the bottom plate 1 has a rectangular shape and becomes a rectangular shape in plan view when folded and a rectangular box shape in plan view when assembled in a box shape.
There is a type in which the bottom plate 1 has a square shape and becomes a square in a plan view when folded and a box having a square shape in a plan view when assembled in a box shape. Although it may be, the attached drawings show an embodiment in which the bottom plate 1 has a rectangular shape. Hereinafter, the case where the bottom plate 1 is rectangular will be described as an example. Then, in the following description, the first side plate 2
In the following description, a is the side plate on the long side and the second side plate 2b is the side plate on the short side. Of course, in the present invention, the first side plate 2a may be the side plate on the short side and the second side plate 2b may be the side plate on the long side.

A long-side side plate, which is a first side plate 2a, is rotatably attached to the opposing long-side sides of the rectangular bottom plate 1 made of synthetic resin, and the bottom plate 1 faces each other. A short side plate, which is the second side plate 2b, is rotatably attached to the short side.

The first side plate 2a, which is the side plate on the long side, has a length in the up-down direction that is 1/2 or less of the length on the short side of the bottom plate 1, and is rotated and folded. In this case, the paired first side plates 2a do not overlap each other. In addition, in the embodiment of the accompanying drawings, the second side plate 2b, which is the side plate on the short side, has a length in the up-down direction that is ½ or less of the length on the long side of the bottom plate 1, When moved and folded, the paired second side plates 2b do not overlap each other.

A plurality of first bearing portions 13a are provided on one pair of opposing sides of the upper surface of the bottom plate 1 so as to project upward, and on the other pair of opposing sides, a rising projection 13c is provided over the entire length. Are projected, and the rising projection 13a
A plurality of second bearing portions 13b are provided on the upper surface of the above so as to project upward. Further, the four corner portions of the upper surface of the bottom plate 1 are provided with corner projections 13d having an L shape in plan view projecting upward, and the upper surfaces of the corner projections 13d are higher than the upper surfaces of the rising projections 13c. It is located above. Further, of the both side surfaces of the corner protrusion 13d, the second bearing portion 13b protruding from the upper surface of the rising protrusion 13c is located at the lower part of one side surface which is the side surface on the rising protrusion 13c side. The first bearing portion 13a is located below the other side surface of the protrusion 13d, and the second bearing portion 13b is located above the first bearing portion 13a.

In the embodiment shown in the accompanying drawings, the bearing portions 13a and 13b have a substantially U-shaped cross section as shown in FIGS. 11, 13 and 18, and the slit 7 provided on the upper surface.
0 and the opening 71 portion provided on the side are open only upward and sideward, the bottom portion and the back portion are closed, and are not opened on the outer surface side of the bottom plate 1, but only on the inner surface side of the bottom plate 1. The structure is such that insects do not enter the folding container 6 through the bearings 13a and 13b from the outer surface side.

A bottom plate side overlapping portion 3 is provided upward on the entire peripheral edge portion including the corner portion of the bottom plate 1. That is, of the four sides of the bottom plate 1, one pair of opposing sides is provided with the first bottom plate side overlapping portion 3a over the entire length, and the other pair of sides of the bottom plate 1 is provided with the second bottom plate side overlapping portion. 3b is provided, and corner bottom plate side overlapping portions 3c are provided at four corner portions of the bottom plate 1, and the first bottom plate side overlapping portion 3a, the second bottom plate side overlapping portion 3b, and the corner bottom plate side overlapping portion 3c are provided. Bottom plate 1
The bottom plate side overlapping portion 3 provided on the entire peripheral edge portion including the corner portion is formed.

Here, the second bottom plate side overlapping portion 3b projects upward along the outside of the rising projection 13c, and
The upper end of the bottom plate side overlapping portion 3b is located above the upper end of the second bearing portion 13b. The first bearing portion 13a is located along the inner side of the first bottom plate side overlapping portion 3a, and the upper end of the first bottom plate side overlapping portion 3a is located above the upper end of the first bearing portion 13a and It is located below the upper end of the second bottom plate side overlapping portion 3b. The corner bottom plate side overlapping portion 3c is an outer end portion of the upper surface of the corner protrusion 13d and the first bearing portion 13.
It continuously protrudes upward or laterally toward the outer end of the side surface on the a side.

Both the first side plate 2a and the second side plate 2b are provided with downwardly projecting projections 12a and 12b at their lower ends.
A horizontal shaft portion 37 is provided on both sides of the downward protrusions 12a and 12b.
a and 37b are provided so as to project laterally.

Then, the downward projection 12 of the first side plate 2a.
a is located between the first bearing portions 13a, and the horizontal shaft portion 37a is freely fitted into the first bearing portions 13a on both sides of the downward protrusion 12a from above by using the slits 70 on the upper surface to rotate freely. It is fitted into. Further, the downward projection 12b of the second side plate 2b is located between the second bearings 13b, and the lateral shaft portions 37b are provided on both sides of the downward projection 12b.
3b is rotatably fitted by forcefully fitting it from above using a slit 70 on the upper surface. As described above, the pair of first side plates 2a and the pair of second side plates 2b are rotatably attached to the first bearing portion 13a and the second bearing portion 13b provided on the bottom plate 1, respectively. It can be folded with the side plates 2a laid down and the pair of second side plates 2b laid down, and after the pair of second side plates 2b is erected, the pair of first side plates 2a is erected. It can be assembled into a shape. In this case, since the bearing portions 13a and 13b are only opened upward and sideward as shown in FIGS. 11, 13 and 18, the bearing portions 13a and 13b are interposed from the outside of the bottom plate 1 as described above. Insects do not enter the folding container 6.

Here, in the embodiment shown in the accompanying drawings, the pair of first side plates 2a, which are first folded when folded, do not overlap the first side plates 2a in the folded state, and the first side plates 2a are The first side plate 2a and the bottom plate 1 are set in contact with each other substantially in parallel to the bottom plate 1 and face each other with a small gap therebetween. With such a configuration, the volume of the folding container 6 in the folded state can be reduced.

As shown in FIG. 20, the first side plate 2a is mainly composed of ribs 35b integrally projecting on the outer surface of the plate portion 35a. The ribs 35b1 in the direction are located slightly inward of the side edges of the plate portion 35a. In other words, the upper portions of both end portions of the plate portion 35a project outward from the ribs 35b1 in the vertical direction. A plurality of fitting protrusions 14 are vertically provided on the upper portions of both side ends of the portion 35a, which are protruded outward from the vertical ribs 35b1 in a direction orthogonal to the outer surface of the plate portion 35a. Further, vertical ribs 35b2 are located along the side edges of the plate portion 35a at the lower portions of both side ends of the plate portion 35a, and the lower ends of the upper vertical ribs 35b1 and the lower vertical ribs are located. The upper end of 35b2 is integrally connected by a lateral rib 35b3.

The first side plate 2a is provided with a first overlapping portion 4 at the lower edge and the side edge. In the embodiment shown in the accompanying drawings, the first overlapping portion 4 of the lower end edge of the first side plate 2a is outside the lateral lower edge rib 35b4 provided at the lower end edge of the first side plate 2a. It is configured by forming the paragraph portion 4a over the entire length of the lower corner portion. Further, at the side end portion of the first side plate 2a, the vertical rib 35b2 is formed.
Of the continuous vertical ribs 4b and the horizontal ribs 4c formed on the outer surface of the rib and the upper surface of the rib 35b3 in the horizontal direction,
The first overlapping portion 4 of the side edge portion of the first side plate 2a is formed by the upper portion of both side portions of a and the portion 35a1 protruding outward from the vertical rib 35b1. The vertical protrusion 4b provided on the outer surface of the rib 35b2 in the vertical direction that constitutes the first overlapping portion 4.
Is composed of an upper vertical ridge 4b1, a lower vertical ridge 4b2, and an intermediate connecting ridge 4b3. Here, the upper vertical ridge 4b1
Is located on the plate portion 35a side with respect to the lower vertical ridge 4b2, and the intermediate connecting ridge 4b3 is located on the upper vertical ridge 4 which is displaced.
The lower end of b1 and the upper end of the lower vertical protrusion 4b2 are continuously integrated.

Locking portions 50 are provided on both sides of the upper end portion of the first side plate 2a, and the locking portions 50 project outward from both end surface portions of the first side plate 2a. Recesses 15 are provided on both sides of the upper end of the outer surface of the first side plate 2a. One of the ribs 35b on both sides of the recess 15 of the first side plate 2a is a vertical rib 35b1 which is one of the ribs 35b, and a long hole 18 is formed in the vertical direction, and a plurality of fitting projections 14 are formed. In the fitting protrusion 14 facing the elongated hole 18, of the holes 1 having the same vertical length corresponding to the elongated hole 18.
9 is formed.

The lock portion 50 is as shown in FIGS. 19 and 20, and includes an operating portion 20, a lock rod 24 projecting laterally from the operating portion 20, and a spring 29 for elastically pushing the operating portion 20 upward. The operating portion 50 is fitted into the recess 15 so as to be vertically movable, and the lock rod 24 is attached to the long hole 1.
8 and the lock rod 2 while being fitted in the hole 19 so as to be vertically movable.
The tip end of 4 is projected outward from the side end of the first side plate 2a, and in the state where no external force is applied, the operating portion 20 is elastically pushed up to the upper side of the recess 15 by the spring force of the spring 29. When the operating portion 20 is moved downward against the spring force of the spring 29, the lock rod 24 is moved downward together with the operating portion 20.

The second side plate 2b is mainly formed by integrally projecting ribs 36b on the outer surface of the plate part 36a, and corresponds to the corner protrusions 13d of the bottom plate 1 below both ends of the second side plate 2b. The formed portion is a concave step portion 2b1 which is concave upward. Further, as shown in FIG. 15 at the side end portion of the inner surface of the second side plate 2b,
As shown in FIG. 18, a protrusion 30 is provided in a direction orthogonal to the inner surface of the second side plate 2b, and the protrusion 30 has a step shape in a plan view, and has a short protrusion length. The projection 31 and an end projection 32 having a long projection length that projects from a position laterally outward of the second side plate 2b relative to the short projection 31 are formed. Further, the lower surface of the concave step portion 2b1 and the lower surface of the short protruding portion 31 are flush with each other. A lower surface of a portion of the end protrusion 32 having a long protruding length that protrudes from the short protrusion 31 is located above the lower surface of the short protrusion 31.

The second side plate 2b is provided with a second overlapping portion 5 at the lower edge and the side edge. In the embodiment shown in the accompanying drawings, the second overlapping portion 5 on the lower end edge of the second side plate 2b has the entire length between the concave step portions 2b1 on the lower end edge of the second side plate 2b as shown in FIG. 18, the paragraph 5a is formed over the entire length of the outer lower corner of the rib 36b in the lateral direction, and as shown in FIG. 18, the lower surface of the recessed step 2b1 at the lower end edge of the second side plate 2b and the short protrusion 31 are formed. Plane view L downward from the outer surface
A downward protrusion 5b having a shape is formed, and the second side plate 2b is formed with a second overlapping portion 5 of the lower end edge by the paragraph portion 5a and the downward protrusion 5b.

Further, the end projection 3 is formed while continuing to the end of the downward protruding strip 5b and rising along the lower end of the short projection 31.
2 is provided laterally along the lower surface of the second side end lower protrusion 5c having an L shape in a front view, and the side end lower protrusion 5c and the end protrusion 32 form a side edge of the second side plate 2b. A second overlapping part 5 of the parts is constituted.

A lock receiving portion 51 is formed on an upper portion of the short protruding portion 31 having a short protruding length, and the lock receiving portion 51 has a protruding tip opening portion 9 opening to a protruding tip end surface and a second portion. L-shaped groove portion 1 having a substantially L-shaped vertical cross-section having an opening / closing opening 10 at the bottom in a direction along the inner surface of the side plate 2b of
1 is provided. Opening / closing opening 10 for L-shaped groove 11
The upper groove is the locked portion 38. The outer surface of the outer wall of the groove to be the locked portion 38 is an inclined introduction surface 39. The inclined introduction surface 39 is located on the rotation locus of the lock portion 50 pushed by the spring 29 when the first side plate 2a is rotated while the second side plate 2b is first erected. There is.

A plurality of fitting holes 34 are formed in the vertical direction in the end protrusion 32 having a long protruding length. Here, the fitting hole portion 34 may penetrate the end protrusion 32 inward and outward, but the bottom of the fitting hole portion 34 may be closed by the end protrusion 32 portion, which is a bug. Intrusion can be prevented more reliably. When the fitting hole portion 34 penetrates the end protrusion 32 in and out, the fitting hole portion 34 at the upper end can see the lock portion 50 from the outside, and thus the fitting hole portion 34.
It is preferable that the cover member (not shown) is detachably attached to the lock portion 50 so that the lock portion 50 cannot be seen from the outside and insects do not enter from the fitting hole portion 34 at the upper end portion. .

In assembling the folding container 6 into a box shape in the folding container 6 having the above-described structure, the upper end portion of the second side plate 2b is grasped and the second side plate 2 is held.
Rotate b to stand. Thus, the second side plate 2b
When raised, the paragraph portion 5a and the downward protruding ridge 5b forming the second overlapping portion 5 at the lower end edge portion of the second side plate 2b face the other opposite side of the bottom plate 1 as shown in FIGS. 11 and 12, respectively. The second bottom plate side overlapping portion 3b and the corner bottom plate side overlapping portion 3c of the pair of sides respectively overlap with each other, and the second side plate is formed at a joint portion between the lower edge portion of the second side plate 2b and the side edge portion of the bottom plate 1. A corner bottom plate provided with gaps for rotating the 2b in the above-mentioned inward and outward directions by the paragraph portion 5a and the downward protruding ridge 5b provided at the second bottom plate side overlapping portion 3b and the outer end portion of the upper surface of the corner protruding portion 13d, respectively. It is configured to be closed by overlapping the side overlapping portion 3c.

After the pair of second side plates 2a is erected as described above, the upper ends of the pair of first side plates 2a are then gripped and rotated to stand. Thus, the first side plate 2
When a is rotated to stand up, the lock rod 24 of the lock part 50 pushed up by the spring 29 hits the inclined introduction surface 39 of the lock receiving part 51, so in this state, the lock rod 24 is further rotated a little further to the first side plate 2a. When a moving force is applied, the lock rod 24 descends along the inclined introduction surface 39, enters the L-shaped groove portion 11 from the opening / closing opening 10 below the inclined introduction surface 39, and the lock rod 24 inside the L-shaped groove portion 11. When it enters, it is pushed up by the spring force of the spring 29 and is fitted into the upper locked portion 38 in the L-shaped groove portion 11 to be in a locked state, so that the first side plate 2a cannot rotate and the upright state is maintained. It In the state where the first side plate 2a is erected, a plurality of fitting protrusions 14 provided on the outer surface portions on both sides of the first side plate 2a are further provided on the end protrusions 32 of the second side plate 2b. The second side plate 2a is fitted into the plurality of fitting hole portions 34, whereby the second side plate 2a cannot rotate and the standing state is maintained.

In the state where the first side plate 2a is erected as described above, as shown in FIG. 13, the paragraph portion 4a forming the first overlapping portion 4 of the lower end edge of the first side plate 2a is the bottom plate 1. Of the pair of opposite sides of the first bottom plate side overlapping portion 3a. In addition, the first overlapping portion 4 of the side edge portion of the first side plate 2a.
The vertical ridges 4b, the horizontal ridges 4c, and the portions 35a1 protruding outward from the vertical ribs 35b1 at the upper portions of both side ends of the plate portion 35a are respectively formed on the side edge portions of the second side plate 2a. It overlaps with the side end lower protrusion 5c and the end protrusion 32 which are L-shaped in a front view and which constitute the second overlapping portion 5. That is, vertical ridge 4
b, the lateral ridge 4c overlaps the lateral end lower ridge 5c inward and outward, and the vertical ribs 35b at the upper ends of both side ends of the plate portion 35a.
The portion 35a1 protruding outward from 1 overlaps the end protrusion 32 in the inward and outward directions.

In this case, in the corner portion of the bottom plate 1, at the portion where the three members of the bottom plate 1, the first side plate 2a, and the second side plate 2b are joined, as shown in FIG. The bottom plate-side overlapping portion 3 provided, the first overlapping portion 4 of the first side plate 2a, and the second overlapping portion 5 of the second side plate 2b overlap three-fold. That is, the corner protrusion 13
Vertical protrusions are formed on a part of the corner bottom plate side overlapping portion 3c provided on the outer end portion of the upper surface of d and on the corner bottom plate side overlapping portion 3c provided on the outer end portion of the side surface of the corner protrusion 13d on the side of the first bearing portion 13a. 4b of the upper vertical ridges and 4b of intermediate connection ridges which constitute 4b.
3 overlaps with the lower vertical ridge 4b2, and the lower end of the upper vertical ridge 4b1 overlaps with the corner bottom plate side overlapping portion 3c provided at the outer end of the upper surface of the corner protrusion 13d. It will overlap on the inner surface side of the side end of the protrusion 5b (that is, the lower end of the side end lower protrusion 5c), and the three members of the bottom plate 1, the first side plate 2a, and the second side plate 2b will be At the joining portion, the lower end portion of the upper vertical protrusion 4b1, the corner bottom plate side overlapping portion 3c, and the side end of the downward protrusion 5b are triple overlapped inward and outward so that insects do not enter the inside.

The folding container 6 assembled in the box shape as described above is a member constituting the folding container 6 (bottom plate 1, pair of first side plates 2a, pair of second side plates 2b).
The bottom plate-side overlapping portion 3, the first overlapping portion 4, and the second overlapping portion 5 which are inevitably formed in the joint portion between the end edge portions of the above are folded to form a gap. By closing with the means A, it is possible to make a structure in which insects do not enter through the gaps formed at the joints between the edge portions of the respective members forming the folding container 6.

The foldable container 6 having a structure in which insects do not enter through the gaps formed at the joints between the edge portions of the respective members constituting the foldable container 6 is for storing fruits and the like therein. In the case of a single body, the lid 40 is detachably covered on the upper opening of the folding container 6 for transportation, or in the case of storing fruits and the like inside the plurality of folding containers 6, the folding container 6 may be used. The container is stacked in multiple layers in the vertical direction, and the lid 40 is detachably attached to the upper opening of the folding container 6 at the uppermost stage to be conveyed.

The bottom plate 1, the first side plate 2a, the second side plate 2b, and the lid 40 all have basic shapes as solid surfaces.
If necessary, in order to ensure air permeability, the bottom plate 1, the first side plate 2a, the second side plate 2b, and the lid 40 may be provided with minute holes that do not allow insects to enter. Side plate 2
It is also possible to provide holes or openings in a, the second side plate 2b, and the lid 40, and to attach a sheet having air permeability such as a non-woven fabric that cannot penetrate insects to the holes or openings.

On the other hand, when folding the folding container 6 assembled in a box shape, the operating portion 20 of the lock portion 50 is used.
Is operated to lower the lock portion 50 downward against the spring 29 to position the lock rod 24 in the lower portion of the L-shaped groove portion 11 to be in the unlocked state, and in this state, the upper end portion of the first side plate 2a is By gripping and rotating, the lock rod 24 can be moved out of the opening / closing opening 10 and the first side plate 2a can be rotated.
The side plate 2a of 1 is laid down so as to overlap with the upper surface of the bottom plate 1. next,
The pair of second side plates 2b are paired with the second pair of second side plates 2b on top of the pair of first side plates 2a which are tilted earlier by gripping the upper ends of the pair of second side plates 2b.
The side plates 2b are stacked and the folding container 6 is folded in a compact state as shown in FIG.

[0040]

According to the first aspect of the present invention, as described above, the gap closing means for closing the gap between the joint portions between the edge portions of the adjacent members in the assembled state of the folding container is provided. Since the foldable container is provided, the gap between the joints between the edge portions of the respective members in the foldable container assembled in the box shape can be closed by the gap closing means, and as a result, each foldable container is configured. It is possible to make a structure in which insects do not enter the inside from the joint portion of the members. Therefore, in transporting fruits and the like that were not used in the past for insects to enter, storing fruits and the like in a folding container and stacking the folding containers in multiple layers up and down,
It is possible to carry the fruit by closing the upper opening with a lid so that the fruit stored inside will not be damaged by insects.

According to the second aspect of the present invention, the lower end edge of the first side plate and the lower end edge of the second side plate are inward and outward from the peripheral edge of the bottom plate when assembled in a box shape. The gap closing means is configured such that both side edge portions of each second side plate overlap each other in the inner and outer directions so as to overlap both side edge portions of the adjacent first side plates in the entire length in the vertical direction.
The lower end edge of the side plate and the lower end edge of the second side plate overlap inward and outward with the peripheral edge of the bottom plate, and both side edge parts of each second side plate are adjacent to each other in the entire length in the vertical direction. It is possible to easily prevent insects from entering the inside of the joints of each member by stacking them inward and outward on both side edge parts, and it becomes possible to store and convey fruits etc. in the folding container. is there.

Further, in the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the bottom plate side overlapping portion is provided at the entire peripheral edge portion including the corner portion of the bottom plate. ,
A state in which a first overlapping portion is provided at the lower end edge and the side end edge portion of the first side plate and a second overlapping portion is provided at the lower end edge portion and the side end edge portion of the second side plate, and is assembled into a box shape. In the above, the first overlapping portion of the lower end edge of the first side plate is overlapped with the bottom plate side overlapping portion of the pair of opposite sides of the four sides of the bottom plate, and the bottom plate side overlapping portion of the other pair of opposite sides is overlapped. A second overlap of the side edges of the second side plate that overlaps the second overlap of the bottom edge of the second side plate and is adjacent to the first overlap of the side edges of the first side plate. Since the parts overlap, the gaps at the joints with the lower ends of the first side plate and the second side plate in the entire peripheral edge part including the corner part of the bottom plate are overlapped with the bottom plate side overlapping part and the lower end of the first side plate. It can be closed by overlapping with the first overlapping portion of the edge portion and the second overlapping portion of the lower end edge portion of the second side plate, and can be closed with the side edge portion of the adjacent first side plate. The gap at the joint with the side edge of the side plate of the first side plate overlaps the first overlapping portion of the side edge of the first side plate and the second overlapping portion of the side edge of the second side plate. It can be closed to prevent insects from entering the inside through the joints of the members.

Further, in the invention according to claim 4, in addition to the effect of the invention according to claim 3, in the corner portion of the bottom plate, a bottom plate side overlapping portion provided in the corner portion of the bottom plate,
Since the first overlapping portion of the first side plate and the second overlapping portion of the second side plate are triple overlapped, the corners of the bottom plate where the ends of the three members face each other most likely to cause a gap , The bottom plate side overlapping portion, the first overlapping portion of the first side plate, and the second overlapping portion of the second side plate are overlapped with each other three times to close the gap, and the ends of the three members are positioned to face each other. It is possible to prevent insects from entering from the part to be filled, and it is possible to make sure that the folding container has a structure that does not allow insects to enter inside.

[Brief description of drawings]

FIG. 1 is a front view of a folding container according to the present invention assembled in a box shape.

FIG. 2 is a side view of the above.

FIG. 3 is a plan view of the above.

FIG. 4 is a bottom view of the above.

FIG. 5 is a cross-sectional view of the folding container of the above in a folded state.

FIG. 6 is a front view showing a state in which a lid is attached to the folding container assembled in the above box shape.

FIG. 7 is a side view showing a state in which the above lid is attached.

FIG. 8 is a plan view showing a state in which the above lid is attached.

FIG. 9 is a front sectional view showing a state in which the above lid is attached.

FIG. 10 is a side sectional view showing a state in which the above lid is attached.

11 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 12 is an enlarged sectional view taken along line CC of FIG. 3 above.

13 is an enlarged cross-sectional view taken along line DD of FIG. 3 above.

FIG. 14 is a cross-sectional view showing a state before the second side plate of the same is erected and the first side plate is erected.

FIG. 15 is a perspective view showing a state in which the first side plate of the same is being raised.

FIG. 16 is a cross-sectional view showing a state in which the first side plate of the above is being raised.

FIG. 17 is a bottom plate side overlapping portion provided at a corner portion of the bottom plate at a portion where three members of the same bottom plate, a first side plate and a second side plate are joined, and a first overlapping portion of the first side plate. , The second overlapping portion of the second side plate is a triple overlapped portion (FIG. 1).
It is an expanded sectional view of the E section of 1.

FIG. 18 is an exploded perspective view showing a corner portion of the above bottom plate and a lower portion of a side end portion of a second side plate.

FIG. 19 is a front view of the first side plate of the above.

FIG. 20 is a perspective view of an end portion of the first side plate of the above.

[Explanation of symbols]

A gap closing means 1 bottom plate 2a First side plate 2b Second side plate 3 Bottom plate side overlapping part 4 First overlap 5 Second overlap

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takeshi Arakawa             Gifu City Kandamachi 9-25, Gifu Plasti             Kook Industry Co., Ltd. F-term (reference) 3E061 AA01 AB09 CA02 DA01 DB17

Claims (4)

[Claims] 1. A pair of first side plates rotatably attached to a pair of opposite sides of a rectangular bottom plate, and a pair of second side plates rotatably attached to another pair of opposite sides. The side plates are folded with the pair of first side plates laid down and the pair of second side plates laid down, and the pair of second side plates are erected, and then the pair of first side plates are erected. A folding container for assembling into a shape, comprising a gap closing means for closing a gap at a joint portion between end edges of adjacent members in an assembled state. 2. The first unit when assembled in a box shape.
Lower edges of the side plates and lower edges of the second side plates overlap the peripheral edge of the bottom plate inward and outward, and both end edges of each second side plate are adjacent to each other in the entire vertical length on both sides of the first side plate. A foldable container, characterized in that a gap closing means is configured so as to overlap the end edges inward and outward. 3. The bottom plate side overlapping portion is provided on the entire peripheral edge portion including the corner portion of the bottom plate, the first overlapping portion is provided on the lower end edge portion and the side end edge portion of the first side plate, and the second side plate portion is provided. A second overlapping portion is provided on the lower edge portion and the side edge portion, and when assembled in a box shape, the lower edge portion of the first side plate is formed on the overlapping portion of the bottom plate side of the pair of opposite sides of the four sides of the bottom plate. The first overlapping portion of the second side plate and the second overlapping portion of the lower end edge of the second side plate to overlap the bottom plate side overlapping portion of the other pair of opposite sides, and the side end edge portion of the first side plate is overlapped. 3. The folding container according to claim 1, wherein the first overlapping portion and the second overlapping portion on the side edge portion of the second side plate adjacent to the first overlapping portion are overlapped with each other. 4. In the corner portion of the bottom plate, the bottom plate side overlapping portion provided at the corner portion of the bottom plate, the first overlapping portion of the first side plate, and the second overlapping portion of the second side plate are 3 The folding container according to claim 3, wherein the folding containers are overlapped with each other.