JP2003040260A - Foldable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable container having a structure capable of raising the container higher, further making the take-out of stored articles easier by providing doors to side walls of the container, and maintaining the strength of the container even in the case the doors are provided. SOLUTION: The foldable container has container side walls 2 and a container bottom face 3. The container side walls 2 are constituted of a first frame body 7 and a second frame body 8, which serve as frames for two opposed side walls, and with foldable side sheets 31 and 32, which serve as the other two opposed side walls. The foldable side sheets 31 and 32 are mounted to the first and second frame bodies 7 and 8, and are formed so that the mutually opposed first and second frame bodies 7 and 8 approach each other when the foldable side sheets 31 and 32 are folded. The container bottom face 3 is connected to a base side part 15 of at least either the first frame body 7 or the second frame body 8 and is formed with a dump bottom sheet 45 which can be turned upward. A door body 9 or 10 capable of opening and closing an opening defined inside the frame body is provided to at least either the first frame body 7 or the second frame body 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding container (container), and more particularly to a folding container suitable for accommodating a CD or a DVD.

[0002]

2. Description of the Related Art A conventional folding container has a rectangular upper frame and a rectangular bottom plate, and a short side portion of the upper frame is provided with a tilting side plate. The long side portion of the upper frame and the long side of the bottom plate are provided. Generally, a folding side plate is provided between the section and the section.
That is, in the conventional folding container, the container side wall is
It is composed of a tilt side plate and a folding side plate. To fold this folding container when not in use, first flip up the tilt side plate to the position of the upper frame and make it horizontal, and then fold the folding side plate inside the container so that the upper frame and the bottom plate are close to each other. .

[0003]

When a container suitable for accommodating a CD or DVD in a case is used, it is necessary to make its size suitable for the size of the case of the CD or DVD. In this case, it is necessary to increase the height (depth) of the container in spite of the relatively small distance between the side walls.
However, when the height of the container is increased, the height of the tilt side plate that constitutes the side wall of the container also increases, and when the tilt plate is flipped up inward, the facing tilt plates contact each other and cannot be folded. Even if it is possible to fold it, the folding boards will overlap and become thick when folded.

Further, in the case where a plurality of containers are stored in a vertically stacked state, it is very troublesome to remove the upper container in order to take out the product stored in the lower container. In order to take out the stored items in the lower container without removing the upper container, it is conceivable to provide an openable door on the side wall of the container. However, it is structurally difficult to provide a door on the side wall of the container constituted by the tilt side plate and the folding side plate, and it is also difficult to sufficiently secure the strength as the side wall. For example, if the size of the container is suitable for accommodating a CD or a DVD in a case, and the opening of the side wall of the container does not have an opening of approximately the same size when the door is opened, the size of the accommodated CD However, if a large opening is formed, the strength of the side wall of the container is reduced, so that a large door cannot be formed with the conventional container structure.

The present invention has been made in view of the above problems, and makes it possible to increase the height of a container, and further to provide a door on the side wall of the container to facilitate the taking out of stored items and to provide a door. Another object is to provide a folding container having a structure that ensures the strength of the container.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, the folding container according to the present invention is a folding container having a container side wall and a container bottom surface, wherein the container side walls face each other.
A first frame body and a second frame body which are frames of one side wall, and a folding side plate which is another two side walls facing each other,
The folding side plate is attached to the first frame body and the second frame body, and is configured so that the first frame body and the second frame body that face each other when folded are close to each other, and the container bottom surface is
The tilting bottom plate is connected to the bottom portion of at least one of the first frame body and the second frame body and is rotatable upward, and is provided on at least one of the first frame body and the second frame body. Is characterized in that a door is provided which can open and close the opening in the frame.

According to the above structure, since the tilt plate is provided as the bottom plate, the height of the container is not directly related to the size of the bottom plate even if the height of the container is increased. Can be higher Further, the container side wall is configured by connecting two facing frame bodies with a folding side plate, and even if the folding side plate is folded, the two frame bodies are close to each other so that the distance between them is small. Only. Further, in the present invention, the door body is provided in the frame body of the side wall to facilitate the taking in and out of the stored items inside, but the strength of the container is ensured by the first and second frame bodies. Since the frame body is provided with the door, the strength of the container is ensured even if the door is provided.

Furthermore, it is preferable that the lower end portion of the door body is connected to the bottom portion of the frame body, and the upper end portion of the door body is rotated so as to be pulled down and opened. Furthermore, it is preferable that the first frame body and the second frame body are provided with a positioning portion that performs positioning when stacked with another folded container. In the container structure of the present invention, since the frame bodies are stacked in order to stack the folded containers, by providing the positioning portion,
Stable stacking of folded containers is possible.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a folding container 1, and FIG. 1 shows a state in which two containers 1 are stacked. The container 1 has a size suitable for accommodating an optical recording medium such as a CD or a DVD, and is C
It is a D or DVD container. The container 1 is made of synthetic resin, specifically polypropylene.

The container 1 in the assembled state is provided with a container side wall 2 having four surfaces and a rectangular container bottom surface 3 and has an upper opening shape, and the CD or DVD case M is opened from the upper opening.
Can be taken in and out. Of the container side wall 2,
The first side wall 5 and the second side wall 6, which are two surfaces facing each other, are composed of rectangular frame bodies 7 and 8 and door bodies 9 and 10 hinged to the frame bodies 7 and 8, respectively. The frame body 7 and the door body 9 of the first side wall 5 are referred to as the first frame body 7 and the first door body 9, respectively, and the frame body 8 and the door body 10 of the second side wall 6 are the second frame body 8 respectively. It is called the second door body 10.

The first frame 7 and the second frame 8 are the container 1
It is also a skeleton, and the strength of the container is secured by these frame bodies 7 and 8. Further, other members constituting the container 1 are attached to the frame bodies 7 and 8, and
8 is also a mounting body for other members. FIG. 2 shows the first frame body 7. The first frame 7 and the second frame 8 have the same structure. Further, the first door body 9 and the second door body 10 have the same configuration. The frame body 7 has a left column portion 12 that extends in the vertical direction and a right column portion 13 that also extends in the vertical direction.
It has a bottom part 15 extending in the lateral direction so as to connect the lower ends of the left and right support parts 12 and 13, and an upper side part 16 extending in the lateral direction so as to connect the upper ends of the left and right support parts 12, 13. And is configured as a rectangular frame with an open inside. The opening inside the frame 7 has a size that allows the CD / DVD case to be taken in and out.

The lengths of the left and right support columns 12 and 13 are such that the case of a CD or the like does not protrude upward from the upper opening of the container 1 even if the CD or DVD contained in the case is stood up and stored. The size is set to be slightly larger than the size of the case, and the supporting columns 12 and 13 are formed with a positioning concave portion 18a and a positioning convex portion 18b which serve as a positioning portion when stacking a plurality of folded containers 1. Details of how to use the concave portions 18a and the convex portions 18b will be described later. The bottom portion 15 is provided with hinge shafts 20a and 20b for mounting and supporting the door 9. Hinge axis 2
0a and 20b are provided at two locations in the middle of the bottom portion 15 in the longitudinal direction, and are arranged so that their axes are in the longitudinal direction of the bottom portion 15, that is, in the left-right direction.

The door body 9 is formed in a size capable of closing the entire opening inside the frame 7. As shown in FIG. 3, the hinge shaft 20a, 2
There is provided a hinge receiving portion 21 that is rotatably attached to 0b. The lower end portion 9a of the door body 9 is connected to the frame body 7 via a hinge portion (hinge shaft and hinge receiving portion), and the lower end portion 9a pivots about the axial center in the left-right direction and the door body upper end. The portion 9b is movable so as to be pulled down to the front (left side in FIG. 3). The door body 9 can be opened from a vertical position (closed position) shown by a chain line in FIG. 3 to a horizontal position (open position) by being pulled down.

Here, the rigidity of the first side wall 5 (or the second side wall 6) is taken exclusively by the frame body 7, and the opening and closing of the door body 9 has almost no influence on the strength of the container 1. In other words, since the opening and closing of the door body 9 does not affect the strength of the container 1, the opening of the frame body 7 can be made large enough for a CD or the like to be taken in and out, and the large door body 9 can be provided. The door body 9 is provided with an engaging portion 23 for engaging with the frame body 7 and maintaining the closed state at the vertical position which is the closed position. The engagement portion 23 is a claw body formed to project upward from the upper end portion 9b of the door body 9.

The engaged portion 2 on the side of the frame body 7 with which the claw body 23 engages.
4 is provided on the upper side portion 16 of the frame body 7. Specifically, the engaged portion 24 is a portion where the longitudinal center position 16a of the upper side portion 16 is formed in a concave shape in the thickness direction of the frame body 7, and the claw body 23 is formed at the concave position 16a. Is blocked and the door 9 is prevented from opening. On the upper end portion 9b of the door body 9, a release operation piece 26 for releasing the engagement by the claw body 23 and opening the door body 9 is provided. Release operation piece 2
By operating 6, the claw 23 is elastically deformed, the claw 23 is disengaged from the engaged portion 24, and the door 9 can be opened.

As shown in FIG. 3, when the door body 9 is in the closed position, the release operation piece 26 extends from the frame body 7 in a direction (left side in FIG. 3) orthogonal to the plane direction of the frame body 7. It does not stick out. Therefore, the release operation piece 26 does not hinder the stacking of the folded containers 1. Of the container side wall 2, the other two opposing surfaces, that is, the third side wall 31 and the fourth side wall 32 are each configured by a foldable side plate that can be folded. As shown in FIG. 1, the folding side plates 31 and 32 are the first side plate pieces 3.
4 and the second side plate 35. These side plate pieces 34 and 35 are arranged at the height of the frame body 7 (the support columns 12 and 13).
It is a vertically long rectangular plate having a height substantially the same as the height. Adjacent side pieces of the first side plate piece 34 and the second side plate piece 35, which are arranged in parallel, are connected to each other by two hinge portions 37 in the vertical direction so as to be rotatable about the vertical axis.

Also, both side pieces 31a, 31 of the folding side plate 31.
b is rotated to the left and right column parts 12 and 13 of the first frame body 7 or the second frame body 8 via hinge parts (not shown in FIG. 1) whose hinge axes are oriented in the vertical direction. It is freely connected. Since the folding side plate 31 is configured as described above, the adjacent side pieces of the first side plate piece 34 and the second side plate piece 35 become vertical folding portions 38, and the folding portions 38 bend while the container 1 is being bent. Moving inward, the first side plate piece 34
And the second side plate piece 35 are foldable so as to overlap each other.

It should be noted that the first side plate piece 34 and the second side plate piece 35 are each provided with a hand-holding hole 40 which is useful for holding and carrying the container 1 by hand in a penetrating manner in the thickness direction. FIG. 4 shows a tilt bottom plate 45 which is the bottom surface 3 of the container. The tilt bottom plate 45 includes a first bottom plate piece 47 and a second bottom plate piece 48. The first bottom plate piece 47 is the first frame body 7.
Is rotatably connected to hinge shafts 50a and 50b provided on the bottom portion 15 of the second bottom plate piece 48.
Is rotatably connected to hinge shafts 50a and 50b provided on the bottom side portion 15.

The hinge shafts 50a and 50b to which the bottom plate pieces 47 and 48 are attached are the hinge shafts 20a and 2a to which the door bodies 9 and 10 are attached at the bottom side portions 15 of the frame bodies 7 and 8, respectively.
It is provided in two places from 0b in the longitudinal center,
The axis is oriented laterally. Also, the hinge shaft 50
a and 50b are hinge shafts 2 so as not to hinder folding.
Compared with 0a and 20b, the axial center is shifted in the thickness direction of the frame bodies 7 and 8. The first bottom plate piece 47 has one side 4 serving as a base end side.
7a is attached to the first frame 7 so as to be adjacent to the bottom portion 15 of the first frame 7. Similarly, the second bottom plate piece 48 is also attached to the second frame body 8 so that one side 48 a that is the base end side thereof is adjacent to the bottom side portion 15 of the second frame body 8.

Frames 7 and 8 are provided on the respective base end sides 47a and 48a.
A hinge receiving portion 51 attached to the hinge shafts 50a and 50b is formed, and each bottom plate piece 47 is rotatable about an axis in the left-right direction. The first bottom plate piece 47 is the second
A step is formed such that one side 47b (right side in FIG. 4) of the side adjacent to the bottom plate piece 48 from the center in the left-right direction projects toward the second bottom plate piece 48 side. Similarly, the second bottom plate side 4
8 also has the other side 48b (left side in FIG. 4) from the center in the left-right direction among the sides adjacent to the first bottom plate piece 47.
A step is formed so as to project to the 7 side.

The protruding portion 47b of the first bottom plate piece 47 is
While its tip partially overlaps the second bottom plate side 48,
The tip of the protruding portion 48b of the second bottom plate piece 48 also partially overlaps the first bottom plate piece 47, so that the first bottom plate piece 47 and the second bottom plate piece 48 are connected. As shown in FIG. 5, the protruding portion 47 b of the first bottom plate piece 47 is provided with a fitting protrusion 53 formed downward, and the second bottom plate piece 48 is provided with the fitting protrusion 53. A fitting groove 54 that is fitted from above is formed. A fitting protrusion is also formed on the protruding portion 48b of the second bottom plate piece 48, and a fitting groove into which the fitting protrusion of the second bottom plate piece 48 is fitted is formed on the first bottom plate piece 48.

When the fitting protrusion 53 is in the fitting groove 54,
The first bottom plate piece 47 and the second bottom plate piece 48 are substantially flush with each other and are in a horizontal state to form a flat bottom surface 3. Also, the first and second
The bottom plate pieces 47 and 48 are hinged portions (hinge shaft 50).
With a, 50b and the hinge receiving portion 51), it can be rotated in the upward flip-up direction and moved to the vertical state. 6 to 8 show how the tilt bottom plate 3 rotates upward when the container 1 is folded.
6 to 8, the folding side plates that are the third side wall 31 and the fourth side wall 32 are not shown.

FIG. 6 shows the container 1 in the assembled state, and when the bottom plate pieces 47, 48 are rotated around the hinge shaft 50a and moved upward from this state, the state shown in FIG. 7 is obtained. further,
When the bottom plate pieces 47, 48 are rotated, the bottom plate pieces 47, 48 are in a vertical state as shown in FIG.
Is accommodated in the first frame body 7, the second bottom plate piece 48 is accommodated in the second frame body 8, and the bottom surface of the container 1 is lost and only the side wall is provided. FIG. 9 shows a plan view of the container 1 in the state of FIG. 8 seen from the upper opening. In order to fold the container 1, from the state shown in FIG. 9, the folding part 3 of the folding side plates 31 and 32 is further added.
Hinge part 5 having first and second side plate pieces 34 and 35 having vertical hinge axes so that 8 and 38 are folded inside the container 1.
The first frame body 7 which is rotated about 6 and faces each other as shown in FIG.
And the second frame body 8 are brought close to each other. Further, when each side plate piece 34 is rotated, the container 1 is completely folded and the container 1 is folded.
It becomes the state of.

In the folded container 1, as shown in FIG. 12, the first frame body 7 and the second frame body 8 of the other container 1 can be placed so as to face each other, and the positioning concave portion 18 can be placed.
The a and the positioning protrusion 18b serve as positioning when stacking a plurality of folded containers 1. That is, in FIG. 12, the positioning concave portion 18a provided on the second frame body 8 of the container 1 at the lower side is engaged with the positioning convex portion 18b provided on the first frame body 7 of the container 1 at the upper side in an uneven manner, The positioning protrusion 18b provided on the second frame body 8 of the container 1 located below is fitted into the positioning recess 18a provided on the first frame body 7 of the container 1 located above to form a concave-convex shape. Are positioned and can be stacked stably.

FIG. 13 shows a swing bottom plate 4 which is the bottom surface 3 of the container.
5 shows a modified example of No. 5. This tilt bottom plate 45 is also the first
Although the bottom plate piece 47 and the second bottom plate piece 48 are provided, these bottom plate pieces 47, 48 are the other bottom plate piece 4 as shown in the drawing.
Concavities and convexities are formed on one side opposite to 7, 48, and by fitting the concavities and convexities, both bottom plate pieces 47, 48 are flush with each other to form a flat bottom surface 3. The present invention is not limited to the above embodiment. For example, instead of forming the tilting bottom plate with two bottom plate pieces, one bottom plate piece having a size that serves as the container bottom may be provided on either the first frame body or the second frame body.

Further, the door body 7 has an upper side portion 16 of the frame bodies 7 and 8.
It is rotatably provided with respect to either the right or left column part 1
It can also be provided rotatably on the position 2. Further, the door body can be configured by a plurality of (for example, two) door pieces,
Specifically, it may be a double door type door. The use of the container according to the present invention has been illustrated as being for CD / DVD, but the use is not limited,
It can be applied to containers for storing various things.

[0027]

According to the present invention, since the tilt plate is provided as the bottom plate, the height of the container can be increased as necessary. Further, in the present invention, since the door body is provided on the frame body of the side wall, it is possible to easily take in and out the stored items even when the containers are stacked. Further, even if the door body is provided, the strength of the container is ensured by the first and second frame bodies.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which two folding containers are stacked.

FIG. 2 is a plan view of a frame body.

FIG. 3 is a side view of a frame body and a door body.

FIG. 4 is a plan view of a tilt bottom plate.

5 is a cross-sectional view taken along line CC of FIG.

FIG. 6 is a side view of the container in which the folding side plate is omitted.

FIG. 7 is a side view of the container showing a state in which the swing bottom plate is being rotated.

FIG. 8 is a side view of the container showing a state where the swing bottom plate is completely rotated.

FIG. 9 is a plan view of the container in which the swing bottom plate is completely rotated.

FIG. 10 is a plan view of the container showing a state where the folding side plate is being folded.

FIG. 11 is a plan view of the container that has been folded.

FIG. 12 is a plan view showing how to stack two folded containers 1.

FIG. 13 is a plan view showing a modified example of the tilt bottom plate.

[Explanation of symbols]

1 folding container 2 container side wall 3 Container bottom 5 First side wall 6 Second side wall 7 First frame 8 Second frame 9 First door 10 Second door 15 Bottom 18a Positioning recess 18b Positioning convex part 31 Third side wall (folded side wall) 32 Fourth side wall (folded side wall) 45 Yes Bottom plate

Claims (3)

[Claims] 1. A collapsible container having a container side wall (2) and a container bottom surface (3), wherein the container side wall (2) comprises a first frame (7) and a first frame (7) which are frames of two side walls facing each other. 2 frame bodies (8) and other 2 facing each other
And a folding side plate (31, 32) which is one side wall, and the folding side plate (31, 32) is attached to the first frame body (7) and the second frame body (8). In addition, when folded, the first frame body (7) and the second frame body (8) that face each other are configured to be close to each other, and the container bottom surface (3) includes the first frame body (7) and the second frame body (7). The first frame body (7) and the second frame body (8) are constituted by a tilting bottom plate (45) which is connected to at least one of the bottom side portions (15) of the body (8) and is rotatable upward. At least one of the door bodies (9,
10) is provided, The folding container characterized by the above-mentioned. 2. The door body (9, 10) has a lower end portion connected to a bottom side portion (15) of the frame body (7, 8) so that an upper end portion of the door body (9, 10) is pulled down. A folding container, which is provided so as to be pivoted to open. 3. The first frame body (7) and the second frame body (8)
The folding container is characterized in that it is provided with positioning portions (18a, 18b) for positioning when stacked with another folded container.