JPH06312739A - Collapsible container - Google Patents

Abstract

PURPOSE:To ensure stableness in erection of a collapsible container, and to improve strength against load and shock. CONSTITUTION:A collapsible container is equipped with an upper surrounding frame 2, a bottom board, long side panels constructed with upper long side panels 41 and lower long side panels rotatively connected respectively to the upper surrounding frame 2 and the bottom board, and a flap that is rotatively connected to the upper surrounding frame 2 while being in contact with the bottom board and the long side panels and for bearing the long side panels. In parts near a shaft 6 of the upper long side panels 41 and a bearing 60 of the upper surrounding frame 2 forming at least one out of many connecting parts connecting each of members, insertion ribs 7 and fitting ribs 8 that are fitted together when erected, are formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable container that is used for transportation and transportation of articles and is foldable.

[0002]

2. Description of the Related Art Generally, a foldable container that can be assembled into a box during transportation and transportation of articles and can be folded during storage is an upper peripheral frame, a bottom plate, and a foldable container. A long side plate composed of an upper long side plate and a lower long side plate rotatably connected to the upper peripheral frame and the bottom plate, and a long side plate rotatably connected to the upper peripheral frame and to the bottom plate and the long side plate. There is known one provided with a tilting plate which abuts and supports the long side plate (see, for example, Japanese Utility Model Publication No. 57-27707).

Conventionally, the respective constituent members of the folding container are rotatably connected by a connecting member made of a metal material or the like.

[0004]

However, in the conventional folding container described above, each member is simply connected by the connecting member made of a metal material.
It is easy to rattle in the assembled state, and sufficient load resistance and impact strength cannot be obtained. In particular, when the connecting member of this folding container is made of a resin material, the entire folding container is made of a resin material, which makes it convenient to use as a recycling resource, but the rattling, load resistance, and impact resistance It becomes even more inadequate.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a foldable container which can obtain a stable assembled state and is excellent in load bearing strength and impact resistance.

[0006]

A folding container according to the present invention for solving the above-mentioned problems includes an upper peripheral frame, a bottom plate, and
A long side plate, which is foldable and is rotatably connected to the upper peripheral frame and the bottom plate, and includes an upper long side plate and a lower long side plate, and is rotatably connected to the upper peripheral frame. Along with this, the bottom plate and the long side plate are abutted to each other so that the long side plate is supported. And a folding container adapted to be folded by bending the long side plate in a state where the contact between the long side plate and the tilting plate is released, the vicinity of at least one connecting portion among the connecting portions between the respective members. In addition, reinforcing ribs that are fitted to each other in the assembled state are formed.

[0007]

According to the present invention, since reinforcing ribs which are fitted to each other in the assembled state are formed in the vicinity of at least one of the joined portions between the respective members, the joined portions in the assembled state are formed. Rattling is prevented and at the same time, this connecting portion is reinforced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show the outline of the overall structure of a synthetic resin folding container 1 (hereinafter simply referred to as a container), and FIGS. 4 to 6 show an upper peripheral frame 2, a bottom plate 3 and a long side plate 4. The connected state is shown.

That is, the container 1 is provided with an upper peripheral frame 2, a bottom plate 3, a long side plate 4 and a tilt plate 5, and is provided in the vicinity of a shaft portion 6 and a bearing portion 60 for connecting the respective members. An insertion rib 7 and a fitting rib 8 which are fitted to each other in an assembled state are provided.

The upper peripheral frame 2 is formed in a rectangular shape, and a long frame wall 21 and a short frame wall 22 that are slightly suspended are formed on the entire periphery of the upper peripheral frame 2. Also, the long frame wall 2
1, a bearing portion 6 having a shaft hole along the long side direction.
Zeros are integrally formed at a plurality of positions on the long frame wall 21 with appropriate intervals. A plate-shaped insertion rib 7 is provided between the bearings 60 to reinforce the entire long frame wall 21. Further, a bearing portion 60 having an axial hole inside the short frame wall 22 along the short side direction.
However, they are integrally formed at a plurality of locations on the short frame wall 22 with an appropriate interval.

The bottom plate 3 has a bottom portion 30 having substantially the same outer peripheral size and shape as the upper peripheral frame 2, and a long side rising wall 31 and a short side rising wall 32 which are provided upright from the peripheral edge of the bottom portion 30.
It is formed by and. Further, inside the long side rising wall 31, a bearing portion 60 having a shaft hole along the long side direction.
However, they are integrally formed at a plurality of locations on the long side rising wall 31 with an appropriate interval. Then, each bearing portion 6
Between 0, the insertion rib 7 is provided, and the long piece rising wall 31
It is designed to reinforce the whole. Further, on the bottom portion 30 near the short side rising wall 32, a locking piece 33 for locking the swing plate 5 is provided in a protruding manner.

The bottom plate 3 and the upper peripheral frame 2 are provided so as to face each other.

In the long side plate 4, the lower side of the upper long side plate 41 and the upper side of the lower long side plate 42 are rotatably connected. That is, on the lower side of the upper long side plate 41, the cantilevered shaft portions 6 are integrally formed at a plurality of locations on the upper long side plate 41 with appropriate intervals along the lower side direction. A bearing portion 60 having an axial hole is integrally formed on the upper side of the lower long side plate 42 at a plurality of locations on the lower long side plate 42 with an appropriate interval along the upper side direction. Then, by inserting the shaft portion 6 formed on the upper long side plate 41 into the bearing portion 60 formed on the lower long side plate 42, the upper long side plate 41 and the lower long side plate 42 are made rotatable with respect to each other. There is.

Further, as shown in FIG. 5, on the lower side of the upper long side plate 41, an inserting rib 7 having a plurality of inserting pieces 71 is formed integrally with the upper long side plate 41 along the entire lower side. ing. On the other hand, a plurality of fitting portions 81 are also provided on the upper side of the lower long side plate 42.
The mating rib 8 having the lower long side plate 4 is provided along the entire upper side.
It is molded integrally with 2. And this upper long side plate 41
When the lower long side plate 42 and the lower long side plate 42 are rotated from the bent state to the assembled state where they are flush with each other, as shown in FIG.
The insert piece 71 of the insert rib 7 is fitted to the fitting portion 81 of the fitting rib 8 of the lower long side plate 42. In this fitted state, the upper long side plate 41 and the lower long side plate 42 are prevented from rattling and the connected state of the shaft portion 6 and the bearing portion 60 is reinforced.

On the other hand, on the lower side of the long side plate 4, that is, the lower side of the lower long side plate 42, as shown in FIG. 6, a cantilevered shaft portion 6 having a shaft core 61 along the lower side direction is provided with an appropriate interval. In the existing state, the lower long side plate 42 is integrally formed at a plurality of locations. Fitting ribs 8 are provided between the shafts 6 to reinforce the vicinity of the shafts 6. A fitting portion 81 is provided on the fitting rib 8, and as shown in FIG. 8, the fitting rib 8 is fitted to the insertion rib 7 provided on the long side rising wall 31 in an assembled state. And the bottom plate 3
By pushing the shaft portion 6 formed on the lower side of the lower long side plate 42 into the bearing portion 60 formed on the long side rising wall 31 and bending the shaft portion 6 to engage with the bearing portion 60, The bottom plate 3 and the long side plate 4 are connected. At this time, since the shaft portion 6 is engaged by being pushed in, the shaft core 61 provided in the shaft portion 6 is obliquely cut so as to be easily pushed in. Further, at the time of pushing in, as shown in FIG. 9, the inserting ribs 7 and the fitting ribs 8 provided on the members are pushed in from an oblique direction so as not to buffer each other. In addition,
In this embodiment, the insertion rib 7 extending in the vertical direction along the long side rising wall 31, and the fitting rib 8 having the narrow fitting portion 81 into which the insertion rib 7 can be fitted. 10 and 11, the insertion rib 7 having a width in the long side direction and a wide fitting portion 81 into which the insertion rib 7 can be fitted, as shown in FIGS. It may be configured to be fitted with the fitting rib 8 having.

Further, on the upper side of the long side plate 4, that is, the upper side of the upper long side plate 41, as shown in FIG. In the existing state, the upper long side plate 41 is integrally molded at a plurality of locations. Fitting ribs 8 are provided between the shafts 6 to reinforce the vicinity of the shafts 6. A fitting portion 81 is also provided on the fitting rib 8 so that the fitting rib 8 fits with the insertion rib 7 provided on the long frame wall 21 in the assembled state. Then, like the lower long side plate 42, the shaft portion 6 formed on the upper side of the upper long side plate 41 is pushed into the bearing portion 60 formed on the long frame wall 21 of the upper peripheral frame 2, and the shaft portion 6 is pushed. The upper peripheral frame 2 and the long side plate 4 are connected by bending and engaging the bearing portion 60.

As a result, the long side plate 4 can be bent so that the outer surface of the upper long side plate 41 and the outer surface of the lower long side plate 42 face each other. Also, in this bent state, the long side plate 4
Will be housed in a space formed by the long frame wall 21 and the short frame wall 22 of the upper peripheral frame 2 and the long side rising wall 31 and the short side rising wall 32 of the bottom plate 3. further,
From this bent state, the upper long side plate 41 and the lower long side plate 42 are extended so that they are in the same plane, and the upper long side plate 41 is
The outer surface of the upper peripheral frame 2 is abutted against the inner side of the long frame wall 21,
The outer surface of the lower long side plate 42 is brought into contact with the inner side of the long side rising wall 31 of the bottom plate. At the same time, in this assembled state, the insertion ribs 7 and the fitting ribs 8 of the respective connecting portions of the upper peripheral frame 2, the upper long side plate 41, the lower long side plate 42, and the bottom plate 3 are fitted to each other, and At the same time, rattling is prevented and these connecting portions are reinforced.

The swing plate 5 is formed in a rectangular shape. The tilt plate 5 is connected to the short frame wall 22 of the upper peripheral frame 2 in the same manner as the connection between the upper long side plate 41 and the upper peripheral frame 2 shown in FIG. The swing plate 5 is housed in the long frame wall 21 and the short frame wall 22 of the upper peripheral frame 2 by rotating the swing plate 5 so as to be horizontal. Further, when the swing plate 5 is rotated so as to be in a vertical state, the outer surface of the swing plate 5 contacts the insides of the short frame wall 22 of the upper peripheral frame 2 and the short side rising wall 32 of the bottom plate 3, and the lower side of the bottom plate 3 is in contact. Of the long side plate 4 is supported by both sides of the long side plate 4. This state is maintained by engaging the locking recess 51 formed on the lower side of the swing plate 5 with the locking piece 33 formed on the bottom 30 of the bottom plate 3. Further, in this state, the short frame wall 22 of the upper peripheral frame 2 and the tilt plate 5
The insertion ribs (not shown) and the fitting ribs (not shown) formed in and are fitted to each other to prevent rattling of the connecting portion between the upper peripheral frame 2 and the swing plate 5 and at the same time Is reinforced. Further, fitting ribs 8 are formed on both sides of the swing plate 5 so that the ribs 5 and the insertion ribs 7 provided on both sides of the long side plate 4 are fitted in this assembled state.

The container 1 thus constructed is
Each of the above constituent members is formed of the same synthetic resin material. In this case, since the connecting portion including the shaft portion 6 and the bearing portion 60 is also made of a synthetic resin material, it can be effectively used as a recycled resource after its useful life. On the other hand, when the shaft portion 6 and the bearing portion 60, which are the connecting portions, are made of a synthetic resin material, the strength of the connecting portions may be insufficient. When the mating ribs 8 are fitted to each other in the assembled state, the container 1 is excellent in load bearing strength and impact resistance. Further, in order to obtain the container 1 which is more excellent in load bearing strength and impact resistance,
In addition to the fitting by the insertion rib 7 and the fitting rib 8,
The connecting portion of the shaft portion 6 and the bearing portion 60 may be made of a member having excellent rigidity such as metal.

The synthetic resin material forming each member of the container 1 includes, for example, polypropylene, polyethylene, ABS resin and the like. Moreover, as a molding method of each member, integral molding by injection molding is suitable.

Further, in this embodiment, the insertion ribs 7 and the fitting ribs 8 are provided at all the connecting portions of the respective constituent members to prevent rattling at the time of assembly and to reinforce them. The present invention is not limited to the case where the insertion ribs 7 and the fitting ribs 8 are provided in all the connecting portions, and only the appropriate connecting portions
It suffices if the insertion rib 7 and the fitting rib 8 are provided as needed to prevent rattling and reinforcement during assembly.

Further, the fitting rib 8 is provided at the position of the insertion rib 7, and the insertion rib 7 is provided at the position of the fitting rib 8.
The mutual positional relationship may be reversed.

[0024]

As described above, according to the present invention, the rattling of the connecting portion can be prevented and the connecting portion can be reinforced at the same time in the assembled state, so that a stable assembled state can be obtained at the same time. It is possible to obtain excellent performance in load bearing strength and impact resistance.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of an overall configuration of a folding container in an assembled state.

FIG. 2 is a perspective view showing an outline of the entire configuration of the folding container in a folding start state.

FIG. 3 is a perspective view showing the outline of the overall configuration of the folding container in a substantially completed state of folding.

FIG. 4 is a partially exploded perspective view showing a connected state of an upper peripheral frame and an upper long side plate.

FIG. 5 is a partial perspective view showing a connected state of the upper long side plate and the lower long side plate.

FIG. 6 is a partially exploded perspective view showing a connected state of a bottom plate and a lower long side plate.

FIG. 7 is a partial cross-sectional view showing a bent state and an assembled state of the upper long side plate and the lower long side plate.

FIG. 8 is a partial cross-sectional view showing a bent state and an assembled state of the bottom plate and the lower long side plate.

FIG. 9 is a partial cross-sectional view illustrating a method of connecting the bottom plate and the lower long side plate.

FIG. 10 is a partial exploded perspective view showing another connection state of the bottom plate and the lower long side plate.

11 is a partial cross-sectional view showing a bent state and an assembled state of the bottom plate and the lower long side plate in FIG.

[Explanation of symbols]

 1 Synthetic Resin Folding Container 2 Upper Perimeter Frame 3 Bottom Plate 4 Long Side Plate 41 Upper Long Side Plate 42 Lower Long Side Plate 5 Flange Plate 6 Shaft Part (Connecting Part) 60 Bearing Part (Connecting Part) 7 Inserting Rib (Reinforcing Rib) 8 Fitting Joint rib (reinforcing rib)

Claims (1)

[Claims] 1. An upper peripheral frame, a bottom plate, a long side plate made of an upper long side plate and a lower long side plate that are foldable and rotatably connected to the upper peripheral frame and the bottom plate, and It is rotatably connected to the upper peripheral frame and is provided with a bottom plate and a tilt plate adapted to abut the long side plate to support the long side plate. A folding container that is assembled by abutting on the long side plate and is folded by bending the long side plate with the bottom plate and the long side plate released from the abutting plate. A foldable container characterized in that reinforcing ribs which are fitted together in an assembled state are formed in the vicinity of at least one of the joined parts.