JP2002166933A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a weak shot side hinge female part and to prevent the same from being damaged by external force by making the height of a folding container in a folded condition low when the same is folded and by forming both end parts of a side wall to be knocked down later with recesses for the hinge female part provided on a bottom to be inserted. SOLUTION: A folding container is structured foldably by knocking down a facing pair of side walls 2 superimposing on another facing pair of side walls 3 knocked down first on the bottom 1. Both ends of the side walls 2 are formed with recesses 2p, 2q for hinge female parts 6 provided on a bottom 1 to be inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to folding a side wall provided so as to surround a bottom portion from a state of being set up substantially vertically and assembled in a box shape to a compact state of being tilted substantially horizontally. Foldable containers.

[0002]

2. Description of the Related Art Conventionally, from a state in which a folding container is assembled in a box shape, one of two opposite side walls among four side walls arranged so as to surround a bottom is moved in a direction approaching each other. , Lie down on the bottom and then the other two opposite side walls are also laid down in the direction approaching each other, so that they overlap on the side wall already lying down on the bottom Folding containers configured to be compactly folded are known.

[0003]

The conventional folding container has a problem that the storage efficiency of the folded container is low because the height of the folded container is high. In addition, in the folded state, the hinge member formed at the bottom is exposed to the side, so that there is a problem that the hinge member that is weak in strength is damaged.

An object of the present invention is to solve the problems of the above-mentioned conventional folding container.

[0005]

According to the present invention, in order to achieve the above-mentioned object, one opposing side wall is laid down so as to overlap the bottom, and the other opposing side wall is first laid down. In a folding container configured to be folded by being overlaid on the side wall, a concave portion is formed at both ends of the side wall which is later folded down, into which a hinge female portion provided at the bottom can be inserted.

[0006]

Embodiments of the present invention will be described below, but the present invention is not limited to these embodiments unless it exceeds the gist of the present invention.

The folding container according to the present invention comprises a bottom 1, a long side wall 2 opposed to a bottom side, and a short side wall 3 opposed to each other. As shown. The short side wall 3 is folded over on the bottom 1 and then the long side wall 2 is folded down and overlaid on the short side 3 overlaid on the bottom 1 as shown in FIG. Is configured. Further, the folding container according to the present invention can lift the short side wall 3 upward as shown in FIG. 4 in the state of being assembled in a box shape as shown in FIG. When the short side wall 3 is lifted upward, the short side wall 3 can be turned in a direction away from the bottom portion 1 as shown in FIG. Therefore, it is configured such that the sides of the box-shaped folded container can be opened. As described above, since the sides of the folding container assembled in a box shape are configured to be openable, as described above, articles such as box-shaped articles and packs are stored tightly and without gaps. In this case, the article can be easily taken out from the opened side.

Hereinafter, an embodiment of the present invention having the above-described functions will be described.

As shown in FIG. 6, the bottom 1 has a substantially rectangular planar shape, and a long side bank 1a is formed on the long side opposite to the bottom 1. . An outer wall (hereinafter, referred to as a long side outer wall) 1a1 extending upward is formed on an outer upper surface of the long side bank 1a, and a long inner wall of the long side bank 1a is formed. The plate-shaped portion 4a constituting the side hinge female portion 4 extends upward,
A hook 4b whose tip is curved in the direction of the long side outer wall 1a1 is formed on the upper portion of the plate-shaped portion 4a. On the long side bank 1a, an appropriate number of long side hinge female portions 4 each including a plate portion 4a and a hook 4b are formed at predetermined intervals (in this embodiment, three long hinge female portions 4 are used). An example in which the side hinge female part 4 is formed is shown.) The long side hinge female portion 4 is formed at substantially the same height as the long side outer wall 1a1. Near both ends of the long side bank 1a, on its upper surface,
A bottom-side bearing projection 5 is formed in which a horizontal shaft hole 5a is formed along the longitudinal direction of the long side bank 1a.

On the short side of the bottom portion 1, an outer wall (hereinafter referred to as a short side outer wall) 1b having a height lower than the outer wall 1a1 formed on the long side bank 1a is formed. By extending the short side outer wall 1b upward, an appropriate number of protrusions 6a are formed at predetermined intervals. In addition, a plate-like portion 6b having a hook 6b1 curved in the direction of the protruding piece 6a is provided upright from the upper surface of the bottom 1 at a position along the short side outer wall 1b and opposite to the protruding piece 6a. And the protruding piece 6a
The short-side hinge female portion 6 is constituted by the plate-like portion 6b having the hook 6b1. The upper end of the projecting piece 6a and the upper end of the hook 6b1 are formed at substantially the same height. This embodiment shows an example in which four short side hinge female portions 6 are provided.

[0011] The four corners of the bottom portion 1 have long side outer walls 1a.
1 and a corner block 7 extending upward beyond the short side hinge female portion 6 formed on the short side and having a substantially L-shaped planar shape.
Are formed. In this embodiment, a concave portion 7a is formed on the side surface on the short side of the corner block 7, and a long wall portion 7b located on the inner side where the concave portion 7a of the corner block 7 is formed is provided. A shaft hole 7c is formed so as to coincide with a horizontal shaft hole 5a formed in the bottom-side bearing protrusion 5 formed near both ends of the side bank 1a.

Reference numeral 1c denotes a rectangular short-side locking step having a horizontally long front shape, which is vertically provided near both ends of the back surface of the bottom 1 located on the short side, and 1d denotes a long side. The front side is a rectangular long-side locking step which is vertically elongated on the back surface of the bottom 1 located at the bottom. The functions of the short side locking step 1c and the long side locking step 1d will be described later.

Next, the short side wall 3 will be described mainly with reference to FIGS.

The short side wall 3 has a horizontally long, substantially rectangular plate-like portion 3.
a, and a lower flange 3b extending outward from the lower end of the plate portion 3a perpendicularly to the plate portion 3a,
The lower flange 3b is provided with a recess 3 having an open bottom, into which a portion projecting above the short side outer wall 1b of the short side hinge female portion 6 formed along the short side of the bottom 1 can be inserted.
c is formed. In this embodiment, since four short side hinge female portions 6 are formed, four concave portions 3c are formed.
Are formed. The lower flange 3b located on both sides of the concave portion 3c has a short side hinge female portion 6 formed on the bottom portion 1.
A vertical piece 8a having an inner width w2 slightly wider than the horizontal width w1 (the length of the short side outer wall 1b along the horizontal direction) is provided, and a horizontal pin 8b is stretched between the vertical pieces 8a. The pair of vertical pieces 8a and the horizontal pins 8b constitute a short side hinge male part 8.

The short side wall 3 is formed with an upper flange 3d extending outward from the upper end of the plate-shaped portion 3a perpendicularly to the plate-shaped portion 3a, and has both vertical edges of the plate-shaped portion 3a. Are formed along the end flange 3e for connecting both ends of the upper flange 3d and the lower flange 3b. Further, inside the end vertical flange 3e, an inner vertical flange 3f connecting the upper flange 3d and the lower flange 3b is formed at a predetermined interval. In addition, as needed, the horizontal rib 3g and the vertical rib 3h
Are formed. Lower flange 3b, upper flange 3
d, the end vertical flange 3e, the inner vertical flange 3f, and the horizontal ribs 3g and the vertical ribs 3h formed as required, are formed on the same surface of the plate-like portion 3a, and are folded into a box shape. When assembled, it is configured to be located on the outside.

Reference numeral 3i denotes locking projections formed near both ends of the upper flange 3d. When the folding containers assembled in a box shape are stacked, the short side engaging step portion 1c formed on the bottom portion 1 of the folding container assembled in the box shape located on the upper side is changed to the box shape located on the lower side. Is arranged so as to be close to the locking projection 3i formed on the upper flange 3d of the folded container assembled in the box-shaped container. The horizontal movement along the short side of the bottom 1 is restricted with respect to the folding container assembled in the box shape, and the folding container assembled in the upper box shape is changed to the lower box shape. It is configured not to move with respect to the assembled folding container.

3j is an end vertical flange 3e of the short side wall 3.
Is a fitting recess formed on the lower side surface of the short side wall 3.
When standing upright with respect to the bottom 1, the portion of the corner block 7 formed at the corner of the bottom 1 located on the short side of the bottom 1 can enter the fitting recess 3 j. It is configured as follows.

3k is an end vertical flange 3e of the short side wall 3.
The upper fitting male member 3k has a vertical wall 3k1 parallel to the end vertical flange 3e and a depth perpendicular to the vertical wall 3k1. Wall 3
A concave portion 3k3 is formed, which is surrounded by k2 and the end vertical flange 3e, and is open at the bottom and outside (the side where the lower flange 3b and the upper flange 3d are formed). 3m is a lower fitting male member provided below the end side surface 3e1 of the end vertical flange 3e of the short side wall 3, similarly to the upper fitting male member 3k, and the lower fitting male member 3m is
It is composed of a horizontal portion 3m1 perpendicular to the end vertical flange 3e and a vertical portion 3m2 parallel to the end vertical flange 3e, and has a gap 3m3 that is open on the lower and both sides.

Reference numeral 9 denotes a lock member disposed on the short side wall 3. The lock member 9 includes an outer spring portion 9a formed substantially in a U shape and an inner spring formed similarly in a U shape. Part 9
b, a connecting portion 9c for connecting one end of the outer spring portion 9a and one end of the inner spring portion 9a, an outer spring portion 9a and the inner spring portion 9
and a lock block 9d which is inserted into a lock recess, which will be described later, formed on the long side wall 2 while connecting the other end of the lock member 9a.

3n is an end vertical flange 3e of the short side wall 3.
And an inner vertical flange 3f. The lock housing member 3n is substantially parallel to the upper flange 3d, one end of which is connected to the end vertical flange 3e. A vertical portion 3n2 substantially parallel to the vertical flange 3f and having an upper end connected to the other end of the upper horizontal portion 3n1, one end connected to a lower end of the vertical portion 3n2, and the other end connected to the inner vertical flange 3f. And the lower horizontal portion 3n3 connected to the lower horizontal portion 3n3. Also, a protrusion regulating rib 3n4 is stretched between the vertical portion 3n2 and the end vertical flange 3e. The end vertical flange 3e of the short side wall 3 is provided with a through hole 3e2 into which the lock block 9d of the lock member 9 can be inserted.

The lock member 9 inserts the lock block 9d of the lock member 9 into a through hole 3e2 formed in the vertical flange 3e at the end of the short side wall 3, and also includes an outer spring portion 9a.
And the inner spring portion 9b is inserted into the gap formed between the plate-like portion 3a of the short side wall 3 and the protrusion restricting rib 3n4 of the lock housing member 3n, so as to be mounted on the short side wall 3. ing.

The short side wall 3 having the above-described configuration is
The short side hinge male portion 8 disposed on the short side wall 3 is provided in the gap between the protruding piece 6a and the plate portion 6b forming the short side hinge female portion 6 formed on the bottom portion 1. The horizontal pin 8b is inserted. At this time, the gap between the protruding piece 6a constituting the short side hinge female part 6 formed on the bottom part 1 and the tip of the hook 6b1 causes the short side hinge male part 8 disposed on the short side wall 3 to move horizontally. The diameter of the pin 8b is larger than that of the pin 8b. Therefore, the horizontal pin of the short side hinge male part 8 disposed on the short side wall 3 and inserted into the short side hinge female part 6 formed on the bottom part 1 is formed. 8b is configured so as not to easily come off. The short side wall hinge male portion 8 disposed on the short side wall 3
Horizontal pin 8b between the upper surface of the bottom 1 and the hook 6b1 forming the short side hinge female portion 6 formed on the bottom 1
It is configured to be able to move up and down.

As described above, the hinge connection between the short side hinge female portion 6 formed on the bottom portion 1 and the short side wall hinge male portion 8 disposed on the short side wall 3 allows the hinge portion to be hinged to the bottom portion 1. When the short side wall 3 is assembled in a box shape, the horizontal pin 8b of the short side wall hinge male part 8 disposed on the short side wall 3 is close to the bottom 1 as shown in FIG. It is in the position that I did. From this position, the short side wall 3 can be tilted inward, that is, toward the bottom 1 side, but in this state, that is, the horizontal pin 8b of the short side wall hinge male portion 8 disposed on the short side wall 3 is When the short side wall 3 is to be tilted outward, that is, in a direction opposite to the bottom side 1 in a state close to the bottom portion 1, the short side wall hinge male portion 8 disposed on the short side wall 3 is provided.
Abuts against the short side outer wall 1b of the bottom portion 1 and therefore the rotation of the short side wall 3 in the opposite direction to the bottom portion 1 is prevented. However, the horizontal pin 8b of the short side hinge male part 8 formed on the short side wall 3
As shown in FIG. 1, the bottom 1 is lifted to a position beyond the upper end of the short side outer wall 1b.
The vertical piece 8a of the short side hinge male part 8 disposed on the short side wall 3 abuts on the short side outer wall 1b of the bottom part 1 even when it is tilted outward, that is, in the direction opposite to the bottom part 1. Therefore, the short side wall 3 can be turned outward, that is, in the direction opposite to the bottom 1, as shown in FIG.

Next, referring to FIG. 1, FIG. 13 and FIG.
The long side wall 2 will be described.

The long side wall 2 is a horizontally long, substantially rectangular plate-like portion 2.
a, and a lower flange 2b extending outward from the lower end of the plate-like portion 2a perpendicularly to the plate-like portion 2a,
Fitting recesses 2c are provided at both ends of the lower portion of the lower flange 2b.
When the long side wall 2 is erected substantially perpendicularly to the bottom 1, a portion of the corner block 7 formed at the corner of the bottom 1 located on the long side of the bottom 1 Is configured to be able to enter the fitting recess 2c.

An upper flange 2d is formed on the long side wall 2 and extends outward from the upper end of the plate portion 2a perpendicularly to the plate portion 2a. Is formed along the end flange 2e for connecting both ends of the upper flange 2d and the lower flange 2b. The end vertical flange 2 e is provided on the inner surface 2 of the plate-like portion 2 a of the long side wall 2.
a1, a little over the end portion of the vertical flange 2e, an upper female fitting that is substantially parallel to the plate portion 2a and extends in the direction of the center of the plate portion 2a. The upper female fitting piece 2f is formed below the end vertical flange 2e, and is substantially parallel to the plate-like portion 2a and extends toward the center of the plate-like portion 2a. Same lower female fitting 2g
Are formed. As described above, the end vertical flange 2
e extends slightly beyond the inner surface 2a1 of the plate-like portion 2a of the long side wall 2, so that the upper female fitting piece 2f formed on the end vertical flange 2e and the plate-like portion 2a. A predetermined gap is formed between the lower female fitting piece 2g and the plate-like portion 2a.

The lower flange 2b of the long side wall 2 has a bottom 1
A concave portion 2h with an open bottom is formed, into which the long side hinge female portion 4 formed along the long side can be inserted. In the present embodiment, since three long-side hinge female portions 4 are formed on the bottom portion 1, three concave portions 2h are formed. A horizontal pin 10a as a long side hinge male part 10 is stretched between the opposing side walls 2h1 forming the recess 2h.

Numerals 2i are locking projections formed near both ends of the upper flange 2d. When the box-shaped folding containers are stacked, the box-shaped folding container is positioned above. A long side locking step 1d formed on the bottom 1 of the container is arranged close to a locking projection 2i formed on the upper flange 2d of the box-shaped folded container located below. And the horizontal movement of the folding container assembled in the box shape positioned on the upper side with respect to the folding container assembled in the box shape positioned on the lower side in the long side direction of the bottom 1 is restricted. The upper box-shaped folded container is positioned so as not to move with respect to the lower box-shaped folded container.

As described above, when the box-shaped folded containers are stacked, the latch formed on the upper flange 3d of the short side wall 3 of the box-shaped folded container located below. Between the convex portions 3i and between the locking convex portions 2i formed on the upper flange 2d of the long side wall 2, the short side formed on the short side of the bottom 1 of the box-shaped folded container located above. Side engagement step 1c
Since the long side locking stepped portion 1d formed on the long side is configured to be arranged close to the box, the box located below the folding container assembled in the box shape positioned above. The horizontal movement of the folded containers assembled in the mold is restricted, and the folded containers assembled in many box molds can be stably stacked.

2j is the same length as the bottom-side bearing convex portion 5 formed on the long-side bank portion 1a formed on the long-side bank portion 1a, which is suspended from the top portion 2c1 forming the fitting concave portion 2c of the long side wall 2. A horizontal shaft hole along the width direction of the long side wall 2 similar to the horizontal shaft hole 5a formed in the bottom side bearing protrusion 5 is provided on the long side wall bearing protrusion 2j. 2j1 is drilled. 2k is a horizontal, vertical or inclined rib formed on the outer surface of the plate-like portion 2a of the long side wall 2 as required. The above-described lower flange 2b, upper flange 2d, end vertical flange 2e, and vertical or inclined rib 2k are formed on the same surface of the plate-like portion 2a, and when a box-shaped folding container is assembled. , Are arranged on the outside.

The long side wall 2 having the above-described configuration is attached to the bottom 1
In order to connect with the long side hinge female portion 4 formed on the bottom portion 1, the hook 4 b is disposed on the long side wall 2 in a gap formed between the tip of the hook 4 b and the long side outer wall 1 a 1. The horizontal pin 10a of the long side hinge male part 10 is inserted, and the hook 4b constituting the long side hinge female part 4 formed on the bottom part 1 is horizontally connected to the long side wall hinge male part 10 disposed on the long side wall 2. Pin 1
0a is engaged. At this time, the long side hinge male part 10 disposed on the long and short side walls 2 is formed from the gap between the tip of the hook 4b forming the long side hinge female part 4 formed on the bottom part 1 and the long side outer wall 1a1. The diameter of the horizontal pin 10a is larger than the horizontal pin 10a. Therefore, a gap formed between the hook 4b forming the long side hinge female part 4 formed on the bottom 1 and the long side outer wall 1a1 is formed. The inserted horizontal pin 10a of the long side hinge male portion 10 disposed on the long side wall 2 is configured so as not to easily come out of the long side hinge female portion 4 formed on the bottom portion 1. .

The long-side wall-side bearing projection 2j hanging from the top portion 2c1 forming the fitting concave portion 2c of the long side wall 2 is formed as follows.
It is inserted into the gap formed between the bottom-side bearing projection 5 and the corner block 7 formed near both ends of the long-side bank 1a of the bottom 1, and the long-side bank 1a of the bottom 1 is inserted. Is inserted into a recess 2m formed near the center of the long side wall 2 adjacent to the long side wall bearing protrusion 2j. Then, the shaft pin 11 is connected to the shaft hole 7c of the corner block 7 formed in the bottom portion 1, the shaft hole 2j1 formed in the long side wall-side bearing projection 2j of the long side wall 2, and the long side bank portion of the bottom portion 1. 1a is inserted into a shaft hole 5a formed in the bottom-side bearing protrusion 5 and a shaft hole 2m2 formed in the side surface 2m1 forming the concave portion 2m, so that both ends of the long side wall 2 and the bottom 1 are formed. It is configured to pivot with the long side.

The end vertical flange 2e of the long side wall 2 has a surface located inside the plate-like portion 2a (a surface facing the short side wall 3 when the folding container is assembled).
An upper concave portion 2p and a lower concave portion 2q are formed. The upper recess 2 is formed between the upper female fitting piece 2f and the lower female fitting piece 2g formed on the end vertical flange 2e.
p is formed, and a lower concave portion 2q is formed below the lower female fitting piece 2g. The upper female fitting piece 2
At the lower end of f and the lower end of lower female fitting piece 2g, upper female fitting piece 2f and lower female fitting piece 2g, which are connected to end vertical flange 2e and are substantially perpendicular to plate-like portion 2a, are reinforced. Horizontal pieces 2f1 and 2g1 can be formed respectively.

As shown in FIG. 2, the short side walls 3
From the state of being folded on the bottom 1, as shown in FIG. 15, the long side wall 2 is turned to the bottom 1 side, and the folding container is compactly folded as shown in FIG. 3. Work is performed, but when the long side wall 2 is tilted to the bottom 1 side, the end vertical flange 2e of the long side wall 2
In the upper concave portion 2p and the lower concave portion 2q formed in
The protruding piece 6a and the plate-shaped portion 6b of the short side hinge female portion 6 formed on the short side of the above are inserted. In this way, when the folding container is folded, the long side wall 2
Since the short side hinge female portion 6 formed on the short side of the bottom portion 1 is inserted into the upper concave portion 2p and the lower concave portion 2q formed on the end vertical flange 2e, the folded portion is folded. The height of the folded container in the state can be lower.

In the folded state, as described above, the short side hinge female portion 6 of the bottom portion 1 is inserted into the upper concave portion 2p and the lower concave portion 2q formed on the end vertical flange 2e of the long side wall 2. Therefore, the short side hinge female portion 6 which is weak in strength is protected, and it is possible to prevent the short side hinge female portion 6 from being damaged by an external force. In particular, when a large number of folded containers are stacked and a force is applied to the short side hinge female portion 6 from above, the short side hinge female portion 6 may be damaged. In addition, since the short side hinge female portion 6 of the bottom portion 1 is inserted into and protected by the upper concave portion 2p and the lower concave portion 2q formed on the long side wall 2, breakage can be prevented.

As described above, the assembled folding container is moved from the folded state as shown in FIG. 3 to the long side wall 2 as shown in FIG.
Is set up substantially vertically, and then, as shown in FIG. 1, the short side wall 3 is set up almost vertically. When the short side wall 3 is set up almost vertically, the end of the short side wall 3 is closed. Vertical flange 3
e, the lock block 9d of the lock member 9 inserted into the through hole 3e2 formed on the end vertical flange 2e of the long side wall 2 by the urging force of the outer spring portion 9a and the inner spring portion 9a of the lock member 9. The short side wall 3 fitted and assembled into the formed upper concave portion 2p is locked with respect to the long side wall 2 so that the short side wall 3 does not fall in the direction of the bottom 1.

When folding the folded container in the assembled state, the long side wall portions 9a1 and 9b1 of the outer spring portion 9a and the inner spring portion 9a of the lock member 9 are connected to the outer spring portion 9a and the inner spring portion 9a. By moving toward the center of the short side wall 3 against the urging force, the lock block 9d of the lock member 9 is discharged from the upper concave portion 2p formed on the end vertical flange 2e of the long side wall 2. Next, in order to fold the short side wall 3 in the direction of the bottom 1 in order to fold the folding container, the short side wall 3 is directly laid down in the direction of the bottom 1 without being lifted upward.

Further, when taking out the articles housed in the folding container tightly without any gap, the outer side spring portion 9a of the lock member 9 and the long side wall portions 9a1 and 9b1 of the inner side spring portion 9a are connected to the outer side. By moving toward the center of the short side wall 3 against the urging force of the spring portion 9a and the inner spring portion 9a, the lock block 9d of the lock member 9 is moved to the upper portion formed on the end vertical flange 2e of the long side wall 2. While being discharged from the concave portion 2p, the short side wall 3 is lifted upward as shown in FIG.
As shown in FIG. 2, when the box is folded in the opposite direction to the bottom 1, the short side wall 3 of the box-shaped folded container can be opened.

As described above, the lock block 9d of the lock member 9 disposed near both ends of the short side wall 3 is replaced with the upper concave portion 2p formed on the end vertical flange 2e of the long side wall 2.
When the box is assembled, the short side wall 3 erected later can be easily engaged with the long side wall 2 by an external force applied to the short side wall 3 toward the inside of the container. Is released to prevent the container from falling inward of the container.

In the case of the conventional folding container, the short side wall 3 and the long side wall 2 are only engaged by the locking members of the locking claws and the locking projections. Is added, the engagement state between the locking claw and the locking projection is easily released, and the trouble that the short side wall 3 falls down occurs frequently, or the locking claw wears due to long-term use. If the short side wall 3 is deformed, the engagement state between the locking claw and the locking projection is easily released, and the short side wall 3 falls down. However, as in the embodiment of the present invention, the lock block 9d of the lock member 9 disposed near both ends of the short side wall 3 is inserted into the upper concave portion 2p formed on the end vertical flange 2e of the long side wall 2. The short side wall 3 erected later can be formed as compared with the conventional locking state by the locking claw and the locking projection.
The state of engagement with the long side wall 2 is easily released, and the container does not fall down toward the inside of the container.

Further, the long side wall portions 9a1 and 9b1 of the outer spring portion 9a and the inner spring portion 9a of the lock member 9 are formed at the center of the short side wall 3 against the urging force of the outer spring portion 9a and the inner spring portion 9a. After being moved closer to release the engagement between the short side wall 3 and the long side wall 2 by the lock member 9, the lock member 9 is lifted upward in the same state, whereby the short side wall 3 can be lifted. So quickly and
The short side wall 3 can be reliably tilted in the direction opposite to the bottom 1. The short side wall 3 side of the folding container assembled in the mold can be opened.

As described above, the folding container is
When the folding container shown in FIG. 3 is assembled into a box shape as shown in FIG. 1 from the folded state, first,. Long side wall 2 folded almost horizontally
Is turned substantially vertically, and then the short side wall 3 folded in a substantially horizontal state is rotated in the vertical direction. In the state where the short side wall 3 is set up almost vertically, the end of the short side wall 3 A gap formed by the vertical wall 3k1 of the upper fitting male member 3k disposed above the end side surface 3e1 of the vertical flange 3e by the inner surface 2a1 of the plate-like portion 2a of the long side wall 2 and the upper female fitting piece 2f. The vertical portion 3m2 of the lower fitting male member 3m disposed below the end side surface 3e1 of the end vertical flange 3e of the short side wall 3 is connected to the inner surface 2a1 of the plate-like portion 2a of the long side wall 2. It is configured to be inserted into a gap formed by the lower female fitting piece 2g. The upper female fitting piece 2f formed above the end vertical flange 2e of the long side wall 2 is connected to the upper fitting male member provided above the end side face 3e1 of the end vertical flange 3e of the short side wall 3. The lower female fitting piece 2g inserted into the 3k recess 3k3 and formed below the end vertical flange 2e of the long side wall 2 is arranged below the end side face 3e1 of the end vertical flange 3e of the short side wall 3. It is configured to be inserted into the gap 3m3 of the provided lower fitting male member 3m.

As described above, when the short side wall 3 of the folding container assembled in the box shape shown in FIG. 1 is turned to the opposite side with respect to the bottom 1, the short side wall 3 is turned upward. When lifted, the inner surface 2a1 of the plate-like portion 2a of the long side wall 2
From the gap formed by the upper female fitting piece 2f and the lower female fitting piece 2g, an upper fitting male member block 3k and a lower fitting male member 3m formed on the end vertical flange 3e of the short side wall 3 are formed. As shown in FIG. 11, the horizontal pin 8b of the short side hinge male part 8 formed on the short side wall 3 is lifted up to a position beyond the upper end of the short side outer wall 1b of the bottom 1 as shown in FIG. In this state, the short side wall 3 is
It is possible to lie outside, ie in the opposite direction to the bottom 1.

As described above, to assemble a folded container into a box shape in a folded state. First, the long side wall 2 is erected substantially vertically with respect to the bottom 1, and then the short side wall 3 is turned vertically to be erected substantially vertically. During the pivoting operation in the direction, the short side wall 3 is prevented from rotating to the opposite side of the bottom 1 beyond the vertical position, so that the end side face 3e1 of the end vertical flange 3e of the short side wall 3 is not rotated. The above-mentioned inner wall 3k2 is formed in the upper fitting male member 3k disposed at the upper part. When the short side wall 3 is pivoted in the vertical direction to stand substantially vertically, the upper female fitting piece 2f formed above the end vertical flange 2e of the long side wall 2 is connected to the end of the short side wall 3. It is inserted into the concave portion 3k3 of the upper fitting male member 3k disposed above the end side surface 3e1 of the vertical flange 3e, but is disposed on the short side wall 3 when the short side wall 3 is raised substantially vertically. Since the upper female fitting piece 2f formed on the end vertical flange 2e of the long side wall 2 that has been set up abuts on the back wall 3k2 of the upper fitting male member 3k, the short side wall 3k is formed. Are configured to be prevented from rotating beyond the vertical position to the opposite side of the bottom 1.

In the embodiment described above, the short side wall 3 is
In contrast to the above, an example is shown in which the bottom wall 1 is tilted in the direction of the bottom 1 and in the direction opposite to the bottom 1.
, Or both of the opposite short side walls 3 can be configured to fall with respect to the bottom 1 in the direction of the bottom 1 and in the opposite direction to the bottom 1. , Can be configured to fall in the direction of the bottom 1 and in the direction opposite to the bottom 1.

As described above, since the short side wall 3 is configured to fall with respect to the bottom 1 in the direction opposite to the bottom 1, a predetermined side of the box-shaped folded container is opened. Therefore, the articles stored in the box-shaped folding container without any gaps can be easily removed from the opened side, and can be easily assembled into the box-shaped box. The workability of taking out the article from the folded container is improved.

Further, by opening predetermined sides of the box-shaped folded container, the degree of freedom of accommodating articles in the box-shaped folded container is increased, and the box-shaped folded container is opened. By opening the predetermined side of the container, it is not necessary to lift heavy articles or the like upward beyond the side wall, so that the worker can store the articles in the box-shaped folded container. The burden on is reduced.

[0048]

Since the present invention has the above-described structure, the following effects can be obtained.

A recess is formed at both ends of the side wall which is later inclined so that the hinge female portion provided at the bottom can be inserted.
When the folding container is folded, the height of the folded container in the folded state can be made lower.

In addition, since the recessed portion into which the hinged female portion disposed at the bottom can be inserted is formed at both ends of the side wall which is later inclined, the short side hinged female portion which is weak in strength is protected. The hinge female portion can be prevented from being damaged by an external force.

[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 perspective view of the folding container of the present invention in the middle of folding.

FIG. 3 is a perspective view showing a state where the folding container of the present invention is folded.

FIG. 4 is a perspective view showing a state where the short side wall is lifted from a state where the folding container of the present invention is assembled in a box shape.

FIG. 5 is a perspective view showing a state in which one short side wall of the folding container of the present invention is turned outward.

FIG. 6 is a perspective view of the bottom of the folding container of the present invention.

FIG. 7 is a perspective view of a short side wall of the folding container according to the present invention.

FIG. 8 is a partial perspective view of a short side wall of the folding container according to the present invention.

FIG. 9 is a perspective view of a lock member of the folding container according to the present invention.

FIG. 10 is a partial vertical side sectional view along a long side wall of the folding container assembled in a box shape according to the present invention.

FIG. 11 is a partial vertical sectional view similar to FIG. 10 with the short side wall of the folding container of the present invention raised.

FIG. 12 is a partial vertical side sectional view similar to FIG. 10 with the short side wall of the folding container of the present invention folded out.

FIG. 13 is a perspective view of a long side wall of the folding container according to the present invention.

FIG. 14 is a partially exploded perspective view of a long side wall and a bottom portion of the folding container according to the present invention.

FIG. 15 is a partial perspective view showing a folded state of a long side wall of the folding container according to the present invention.

FIG. 16 is a partial perspective view showing a state where the short side wall of the folding container according to the present invention is erected.

FIG. 17 is a partial perspective view showing a state where the short side wall and the long side wall of the folding container of the present invention are set up substantially vertically.

[Explanation of symbols]

 1 ... bottom 2 ... long side wall 3 ... short side wall 4 ...・ ・ ・ ・ ・ ・ ・ Long side hinge female part 6 ・ ・ ・ ・ ・ ・ End side hinge female part 8 ・ ・ ・ ・ ・ ・ Short side wall hinge male part 9 Lock members

Claims (1)

[Claims] 1. A folding container configured to fold by folding one opposing side wall so as to overlap the bottom portion, and then folding the other opposing side wall so as to overlap the side wall that was previously collapsed. 3. The folding container according to claim 1, wherein a recessed portion into which a hinge female portion provided on a bottom portion can be inserted is formed at both end portions of the side wall which is later folded down.