JP2001130552A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a folding container having a large internal volume which is close to the outer dimensions of the built-up folding container by constituting the folding container in such a manner that the side walls have a flat plate-form section, and at the same time, the external surface of the side wall is approximately flush with the external surface of the bottom section, or is positioned to be close to the external surface of the bottom section. SOLUTION: For this folding container, the side walls 2 and 3 which are arranged to surround the bottom section 1 can be superposed with the bottom section. In such a folding container, the side walls have a flat plate-form section. At the same time, the folding container is constituted in such a manner that the external surface of the side wall is approximately flush with the external surface of the bottom section, or is positioned to be close to the external surface of the bottom section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding container which can be folded so that a side wall disposed so as to surround a bottom portion overlaps the bottom portion.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6 to FIG. 8, a long side wall 2 connected to an opposite long side 1a of a rectangular bottom 1 by an appropriate hinge H described later is also used. A suitable hinge H is attached to the opposite short side 1 b of the bottom 1.
Is known, and in the folded state, as shown in FIG. 7, the folding side container 3 is folded so that the short side wall 3 overlaps the bottom 1 and further folded. Above, as shown in FIG. 8, the long side wall 2 is folded, and the long side wall 2 in the folded state stands upright with respect to the bottom 1 and then in the folded state The short side wall 3 is configured to be assembled into a box-shaped container by standing upright with respect to the bottom 1.

Next, a hinge portion H connecting the long side wall 2 and the bottom portion 1 will be described as an example with reference to FIG.

[0004] The bottom 1 is formed along a long side of the bottom plate 1c having a cross rib 1c 'suspended from the lower surface and a long side of the bottom plate 1c.
A substantially inverted U-shaped double wall 1d constituting the above-described long side 1a, and the above-described short side formed along the short side of the bottom plate 1c and having a lower height than the double wall 1d. And a peripheral wall 1e on the upper surface of the horizontal wall 1d1 of the double wall portion 1d.
Are formed.

[0005] On the upper surface of the horizontal wall 1d1 of the double wall portion 1d,
The inverted J-shaped hinge female portion H1 is formed at a predetermined interval in the longitudinal direction of the double wall portion 1d. Hinge female part H
Reference numeral 1 denotes a strip h1 extending upward along the inner wall 1d2 constituting the double wall 1d, and a semi-cylindrical hook connected to the strip h1 and extending in the direction of the peripheral wall 1e. H2, and the hinge female portion H1 is
e is located below the upper end. This hinge female part H1
Has an appropriate elasticity by integrally molding the bottom 1 with a synthetic resin.

The long side wall 2 has a horizontally long rectangular plate-like portion 2d.
And a lower horizontal frame 2e extending outward from the lower end of the plate-like portion 2d. The lower horizontal frame 2e has a lower surface corresponding to the hinge female portion H1 formed on the bottom portion 1. , A hinge male portion H2 is formed. The hinge male part H2 is suspended from the lower surface of the lower horizontal frame 2e, and is composed of a pair of vertical pieces h3 perpendicular to the plate-like part 2d and a horizontal pin h4 disposed between the pair of vertical pieces h3. The lower part of the vertical piece h3 is formed as a semicircular part h3 ′. Also,
The opposing vertical piece h3 of the adjacent hinge male part H2 is a vertical part 2 formed as a downward extension of the plate-like part 2d.
f 'and a connecting wall 2f composed of a semi-cylindrical part 2f "connected to the vertical part 2f'.
f coincides with the lower end of the vertical piece h3 of the hinge male part H2, and the semi-cylindrical part 2f ″ of the connecting wall 2f and the vertical piece h3
Has substantially the same radius as the lower semicircular portion h3 '.

The diameter of the horizontal pin h4 of the male hinge H2 formed on the long side wall 2 is defined between the peripheral wall 1e of the bottom 1 and the hook h2 of the female hinge H1 formed on the bottom 1.
A narrow gap is formed.

When the horizontal pin h4 of the hinge male part H2 formed on the long side wall 2 is forcibly inserted into the gap formed between the peripheral wall 1e of the bottom part 1 and the hook part h2 of the hinge female part H1, the hinge The strip portion h1 of the female portion H1 is tilted inward. Therefore, a gap through which the horizontal pin h4 of the male male portion H2 passes between the peripheral wall 1e of the bottom portion 1 and the hook portion h2 of the hinge female portion H1. The horizontal pin h4 can be connected to the hinge female part H1.
Is pushed down to below the hook portion h2. Then, the strip part h1 of the hinge female part H1 returns to the original position by the elastic force of the strip part h1 itself, and the hinge male part H2
Is fitted into the concave portion h2 'of the hook portion h2 of the hinge female portion H1, and the hinge female portion H1 formed on the bottom portion 1 and the hinge male portion H2 formed on the long side wall 2 form: The bottom 1 and the long side wall 2 are hinged. The bottom portion 1 and the short side wall 3 are similarly connected by the hinge portion H formed by the hinge female portion H1 and the hinge male portion H2.

The two end portions of the long side wall 2 are provided with engaging portions 2g.
The engaging portions 3d are also provided at both ends of the short side wall 3, and when assembled,
By engaging the engaging portion 2g on the long side wall 2 side and the engaging portion 3d on the short side wall 3 side with each other, the short side wall 3 of the assembled folding container easily falls down inside. However, such engaging portions 2g and 3d are already known prior to the filing of the present application (see, for example, JP-A-6-1342, JP-A-8-318939). Therefore, the detailed description is omitted.

In the conventional folding container described above, the long side wall 2 is provided with a plurality of vertical ribs 2b and horizontal ribs 2c on the outer surface 2a 'of the plate member 2a. The inner surface 2a "is formed so as to be substantially flush with the inner surface 1a 'of the long side portion 1a of the bottom 1. When the folding container is assembled, the vertical rib 2b and the horizontal rib 2b" are formed. 2c is configured not to protrude outward beyond the outer surface 1a ″ of the long side portion 1a of the bottom portion 1. Similarly, on the short side wall 3, a plurality of vertical ribs 3b and horizontal ribs 3c are provided on the outer surface 3a 'of the plate material 3a. The inner surface 3a "is formed substantially in a plane. When the folding container is assembled, the vertical ribs 3b and the horizontal ribs 3c are connected to the outer surface 1b of the short side portion 1b of the bottom portion 1. Beyond ', it is configured not to protrude outward.

[0011]

In the above-mentioned conventional folding container, the outer surface 2a 'of the long side wall 2 does not extend beyond the outer surface 1a "of the long side portion 1a of the bottom 1 so as not to protrude outward. 2b and horizontal ribs 2c are formed, and the inner surface 2a ″ is the inner surface 1a of the long side 1a of the bottom 1.
a ′, and the outer surface 3 a ′ of the short side wall 3 does not protrude outward beyond the outer surface 1 b ′ of the short side 1 b of the bottom 1. Since the vertical ribs 3b and the horizontal ribs 3c are formed, and the inner surface 3a ″ is formed substantially flat, the internal volume of the assembled folding container is reduced by the vertical ribs 2b and the horizontal ribs of the long side wall 2. In comparison with the virtual vertical surface formed by the tip of 2c and the volume of the space formed by the virtual vertical surface formed by the vertical rib 3b of the short side wall 3 and the tip of the horizontal rib 3c, it is not so large. Therefore, there is a problem that the inner capacity is smaller than the outer dimensions of the assembled folding container.

An object of the present invention is to solve the problems of the above-mentioned conventional folding container, and to provide a folding container in which articles can be easily stored in and taken out of the folding container.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a folding container in which a side wall disposed so as to surround a bottom can be folded so as to overlap the bottom. Is characterized in that the side wall has a flat plate-like portion, and the outer surface of the side wall is substantially flush with the outer surface of the bottom or is located close to the outer surface of the bottom. In the corner formed by the plate-shaped portion of the side wall and the upper and lower horizontal frames, when taking out the article stored in the folding container or storing the article in the folding container, the article is moved upward and downward. A member is provided so as not to be caught or placed on the horizontal frame. Thirdly, a plate-like portion on the side wall is formed into a corrugated plate.

[0014]

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.

Reference numeral 10 denotes a bottom having a rectangular planar shape, and a long side wall 20 is connected to the opposite long side 10a of the bottom 10 via an appropriate hinge H as described above. The short side wall 30 is connected to the opposite short side portion 10b of the bottom portion 10 via the appropriate hinge portion H as described above.

The long side wall 20 has an outer surface 20a 'and an inner surface 20a'.
a ″ is a flat plate-shaped portion 20a, an upper horizontal frame 20b and a lower horizontal frame 20c extending inward from the upper and lower sides of the plate-shaped portion 20a and perpendicular to the plate-shaped portion 20a, and a plate-shaped portion 20a. And a vertical frame 20d formed in the vicinity of the left and right sides and extending inward and perpendicular to the plate-like portion 20a. The upper horizontal frame 20b and the lower horizontal frame 20c are connected by the vertical frame 20d. An engaging portion 20e similar to the above-described engaging portion 2g is formed at both ends of the long side wall 20. The above-mentioned male hinge portion H2 is provided on the lower surface of the lower horizontal frame 20c. Is formed, and the long side wall 20 and the bottom portion 10 are hinged by the hinge female portion H1 formed on the long side portion 1a side of the bottom portion 10 as described above.

At a corner 20f formed by the upper horizontal frame 20b and the inner surface 20a "of the plate-like portion 20a, there is a vertical triangular rib 2 inclined toward the inner surface 20a" as going downward.
0 g are formed at predetermined intervals. Similarly,
In the corner 20h formed by the lower horizontal frame 20c and the inner surface 20a ″ of the plate-shaped portion 20a, the inner surface 2
Vertical triangular ribs 20i inclined toward the 0a ″ side are formed at predetermined intervals. The upper horizontal frame 20b, the lower horizontal frame 20c, and the vertical frame 2 formed on the long side wall 20 are formed.
0d is located on the inner side of the folding container when the folding container is assembled, and the outer surface 20a 'of the plate-like portion 20a of the long side wall 20 is the outer surface 10a' of the long side portion 10a of the bottom 10; It is configured to be substantially flush or to be located close to the outer surface 10a 'of the long side portion 10a of the bottom portion 10.

The short side wall 30 has an outer surface 30a 'and an inner surface 30a.
a "is a flat plate-like portion 30a, an upper horizontal frame 30b and a lower horizontal frame 30c extending inward from upper and lower sides of the plate-like portion 30a and perpendicular to the plate-like portion 30a, and a plate-like portion 30a. And a vertical frame 30d formed in the vicinity of the left and right sides and extending inward and perpendicular to the plate-like portion 30a. The upper horizontal frame 30b and the lower horizontal frame 30c are connected by the vertical frame 30d. An engaging portion 30e similar to the above-described engaging portion 2d is formed at both ends of the short side wall 30. The above-described hinge male portion H2 is provided on the lower surface of the lower horizontal frame 30c. As described above, the short side wall 30 and the bottom portion 10 are hinged by the hinge female portion H1 formed on the short side portion 1b side of the bottom portion 10 as described above.

At a corner 30f formed by the upper horizontal frame 30b and the inner surface 30a "of the plate-shaped portion 30a, a vertical triangular rib 3 inclined toward the inner surface 30a" as it goes down.
0 g are formed at predetermined intervals. Similarly,
In the corner 30h formed by the lower horizontal frame 30c and the inner surface 30a ″ of the plate-shaped portion 30a, the inner surface 3
Vertical triangular ribs 30i inclined to the 0a ″ side are formed at predetermined intervals. The upper horizontal frame 30b, the lower horizontal frame 30c, and the vertical frame 3 formed on the short side wall 30 are formed.
0d is located inside the folding container when the folding container is assembled, and the outer surface 30a 'of the plate-like portion 30a of the short side wall 30 is the outer surface 10b' of the short side portion 10b of the bottom 10; It is configured to be substantially flush or to be located close to the outer surface 10b 'of the short side portion 10b of the bottom portion 10. Reference numeral 30j denotes a hand-held through hole into which a finger can be inserted.
0j, there is a circumferential rib 30 extending inward.
k is formed.

As described above, in this embodiment, when the folding container is assembled, the upper horizontal frame 20b and the lower horizontal frame 2 formed on the long side wall 20 are formed.
0c and the vertical frame 20d are located inside the folding container, and the outer surface 20a 'of the plate-like portion 20a of the long side wall 20 is connected to the outer surface 10a' of the long side portion 10a of the bottom portion 10.
It is configured so as to be positioned almost flush with or close to the outer surface 10a 'of the long side portion 10a of the bottom portion 10,
Similarly, the upper horizontal frame 30b, the lower horizontal frame 30c, and the vertical frame 30d formed on the short side wall 30 are located inside the folding container, and the plate-like portion 3 of the short side wall 30 is provided.
0a is almost flush with the outer surface 10b 'of the short side 10b of the bottom 10 or the short side 1 of the bottom 10
0b is located close to the outer surface 10b 'of the outer side 10b, so that if the thickness of the plate-like portion 20a of the long side wall 20 and the plate-like portion 30a of the short side wall 30 is thin, the assembled folding Since the outer dimensions of the container are substantially equal to the inner capacity, a folded container having a large inner capacity close to the outer dimensions of the folding container can be formed.

Also, a vertical triangular rib 20g is formed at a corner 20f formed by the upper horizontal frame 20b formed on the long side wall 20 and the inner surface 20a "of the plate-shaped portion 20a. If the article comes in contact with the vertical triangular rib 20g when the article stored in the vertical triangular rib 20g is taken out, the article is moved along the vertical triangular rib 20g toward the distal end of the upper horizontal frame 20b. Similarly, vertical triangular ribs 20i are formed at the corners 20h formed by the lower horizontal frame 20c and the inner surface 20a ″ of the plate-shaped portion 20a, so that they can be assembled. When the article comes into contact with the vertical triangular rib 20i when storing the article in the folded container, the article is moved along the vertical triangular rib 20i to the tip of the lower horizontal frame 20c. Because it is moved in the direction, article, something like is placed on the lower horizontal frame 20c is smoothly, avoiding the lower horizontal frame 20c, it is to be placed on the bottom portion 10.

Similarly, a vertical triangular rib 30g is formed at a corner 30f formed on the short side wall 30 and formed by the upper horizontal frame 30b and the inner surface 30a ″ of the plate-shaped portion 30a.
If the article comes into contact with the vertical triangular rib 30g when removing the article stored in the assembled folding container, the article moves along the vertical triangular rib 30g toward the distal end of the upper horizontal frame 30b. Therefore, it is possible to prevent the article from being caught on the upper horizontal frame 30b.
Similarly, the lower horizontal frame 30c and the inner surface 30 of the plate-shaped portion 30a
a "at the corner 30h.
Is formed, when the article comes into contact with the vertical triangular rib 30i when the article is stored in the assembled folding container, the article is moved along the vertical triangular rib 30i along the tip of the lower horizontal frame 30c. Since the article is moved in the direction, the article is smoothly placed on the bottom 10 avoiding the lower horizontal frame 30c so as to be placed on the lower horizontal frame 30c.

In the embodiment described above, the long side wall 20 is
The short side wall 30 is also formed of the flat plate-like portion 30a, and the short side wall 30 is formed of the flat plate-like portion 20a.
0 flat plate portion 20a and plate portion 20a of short side wall 30
Can be formed in a corrugated shape. When the folding container is assembled, the corrugated wave may extend vertically or horizontally, or may be flat on one of the long side wall 20 or the short side wall 30. The flat plate-like portions 20a, 30a can also be formed in a corrugated plate shape.

Further, in the above-described embodiment, the side wall is constituted by the long side wall 20 and the short side wall 30 in which one width is narrower than the other width, but the plane shape of the bottom 10 is substantially square. The width of the side walls may be formed to be substantially the same.

Next, another embodiment of the present invention will be described with reference to FIG.

In this embodiment, the long side wall 200 has an upper vertical portion 200a extending almost vertically from the inner end of the upper horizontal frame 20b, and a downwardly inclined outward direction from the lower end of the upper vertical portion 200a. The upper inclined portion 200b and the inclined portion 20
0b, a vertical portion 200c extending almost vertically from the lower end
A lower inclined portion 200d inclined downward inward from the lower end of the vertical portion 200c; a lower vertical portion 200e extending substantially vertically from the lower end of the lower inclined portion 200d; and a lower vertical portion 200e. The lower horizontal frame 20c and the plate-like portion 20a of the long side wall 20 described above.
And the vertical triangular ribs 20g, 20i formed at the corners 20f, 20h formed by the plate-like portion 20a of the upper horizontal frame 20b or the long side wall 20 and the lower horizontal frame 20c, , By forming the upper vertical portion 200a and the lower inclined portion 200d, when the articles stored in the assembled folding container are taken out or stored in the assembled folding container, Horizontal frame 20b and lower horizontal frame 20c
It can also be configured so that it will not be caught on or placed on. Such a configuration is advantageous in that the short side walls 30
A vertical triangular rib is formed on one of the long side wall 20 and the short side wall 30, and the long side wall 20 or the short side wall 30 where the vertical triangular rib is not formed is formed as described above. It may be configured to form an upper inclined portion and a lower inclined portion.

[0027]

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

The side wall has a flat plate-like portion, and the outer surface of the side wall is substantially flush with the outer surface of the bottom, or
Since it is configured to be located close to the outer surface of the bottom, it is possible to form a folded container having a large content that is close to the outer dimensions of the assembled folded container.

At the corners formed by the plate-like portions of the side walls and the upper and lower horizontal frames, when the articles contained in the folding container are taken out or when the articles are accommodated in the folding container, the articles are placed in the upper and lower portions. Since the member which is not caught or placed on the horizontal frame is provided, it is possible to easily put articles in and out of the assembled folding container.

Since the plate-like portion of the side wall is corrugated, the strength of the side wall is increased, and the durability of the folding container is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an assembled state of a folding container according to the present invention.

FIG. 2 is a vertical sectional view along a short side wall of the folding container of the present invention.

FIG. 3 is a perspective view of the folding container according to the present invention during folding.

FIG. 4 is a perspective view of the folding container of the present invention in a folded state.

FIG. 5 is a partial vertical sectional view along a short side wall of a folding container according to another embodiment of the present invention.

FIG. 6 is a perspective view of a conventional folding container in an assembled state.

FIG. 7 is a perspective view of a conventional folding container in the process of being folded.

FIG. 8 is a perspective view of a conventional folding container in a folded state.

FIG. 9 is a partial perspective view including a long side wall and a bottom portion for explaining a hinge portion for hinge-connecting the long side wall and the bottom portion.

[Explanation of symbols]

 10 Bottom 20 Long side wall 30 ........... Short side wall 20g, 20i, 30g, 30i

Claims (3)

[Claims] 1. A folding container in which a side wall disposed to surround a bottom can be folded so as to overlap the bottom, wherein the side wall has a flat plate-like portion, and the outer surface of the side wall is an outer surface of the bottom. Is almost flush, or
A collapsible container configured to be located close to the outer surface of the bottom. 2. The method according to claim 1, wherein when the articles stored in the foldable container are taken out or stored in the foldable container, the articles are provided at corners formed by the plate-like portions of the side walls and the upper and lower horizontal frames. 2. The folding container according to claim 1, wherein a member is provided so as not to be caught or placed on the upper and lower horizontal frames. 3. The folding container according to claim 1, wherein the plate-like portion of the side wall is corrugated.