JPH0242632Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a side wall structure of a container used for storing and transporting cargo.

[Conventional technology]

Generally, a container is configured in a box shape in order to be stably loaded onto a vehicle, a ship, etc. when a large number of items are stored and transported inside the container. but,
Conventional containers remain box-like even when no cargo is placed inside them, and when the cargo is delivered to the destination and the container is brought back empty, it occupies a large space on a vehicle or ship, making it uneconomical. . Furthermore, when the container is not in use, it is stored in a warehouse or open space, but storage requires a large space and is inconvenient to carry.

Therefore, in recent years, collapsible containers as shown in FIGS. 10 and 11 have been proposed.

The collapsible container shown in FIGS. 10 and 11 includes a top plate 1, a bottom plate 2, and left and right side walls 3 whose central portions are bent inward and foldable.
and a front plate (not shown) that can be opened and closed at the front.
and a back plate 4 which can also be opened and closed on the back, and the front plate can be stored inside the top plate 1 using a shutter method, or can be stored in the top plate 1 parallel to the top plate 1. In addition, the back plate 4 can also be stored inside the top plate 1 using a shutter method.
It is arranged so that it can be stored stacked on the bottom plate 2.
The left and right side walls 3 are composed of upper and lower plates 9 and 10 surrounded by frame members 5, 6, 7, 8, 9, 10, and 11 extending horizontally and vertically, respectively, and the upper plate 12 is located at the upper corner. The lower plate 13 is rotatably connected to the top plate 1 via hinge parts 14 provided on the frame members 8 and 9 at the lower corners, and the lower plate 13 is connected to the bottom plate via hinge parts 12 provided on the frame members 10 and 11 at the lower corners. 2
are rotatably connected to the upper and lower plates 12, 1.
3 is rotatably connected to the lower ends of the frame members 8 and 9 at the center of the container via hinges 16 at the upper ends of each frame member 10 and 11, and the side walls 3 are each bent inward into the container in a dogleg shape. Top plate 1, side wall 3 each plate 1
2 and 13 are folded so as to overlap on the bottom plate 2. 17 is the upper and lower plates 12,1
3, 18 is a hole for a hook provided at a predetermined interval in the vertical bar 17 to support a pallet, and 19 is a pallet.

[Problem that the invention attempts to solve]

However, the above-described collapsible container has side walls 3 that can be bent at the center.
Each frame material 5, 6, 7, 8, 9, which is a constituent member of
10, 11 and the vertical beam 17 are manufactured as a rigid structure, which contributes to an increase in the weight of the container as a whole.

Therefore, in order to reduce the weight of the container, the present invention was developed to reduce the weight of the frame materials and vertical beams that surround the upper and lower plates among the members that make up the side walls, and to provide a sturdy container. At the same time, it is an object of the present invention to provide a container that is easy to fold and safe to handle.

[Means for solving problems]

In order to achieve the above-mentioned purpose, the present invention has a side wall structure that can be folded in half at the center, and the upper frame material is made by bending plate and strip materials to form a frame with an internal space and a plate is attached to the lower part. The structure is such that the tsuba protrudes from the top and the tsuba that protrudes from above is bent inward in an arc shape, and the lower frame material is made by bending plate strips to form a frame with an internal space, and the upper part is made of a plate. It has a structure with a protruding collar for tensioning, and the frame material in the center is made up of elongated plates, plate strips bent and fixed on the outer surface of the plate so as to have a space inside. The frame is made up of bent strips of plates, with flanges protruding from the bottom and top for attaching the plates, and each frame member that extends vertically is bent to create a space inside. The frame body has a structure in which a flange for attaching a plate is projected from the side.

[Effect]

When the central frame is pushed from the outside, the side walls are folded in half, but since the collar protruding from the top of the upper frame is curved inward, there is no problem, and each frame Since it has a flange, it has a sealing effect, and each frame is lightweight and easy to carry.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

Figures 1 to 3 show the side walls of a container to which the present invention has been applied.
and a lower frame member 7, front and rear frame members 8 and 9 that extend vertically, front and rear frame members 10 and 11 that also extend vertically, and a frame member 6 that extends horizontally at the center.
and a vertical rail 17 having many holes 18 for hooks, the upper plate 12 is placed between the frame members 5, 6, 8, 9, and the lower plate 13 is placed between the frame members 6, 7, 10, 1
1, respectively, and the front and rear frame members 8, 9
The upper ends of the frame members 10 and 11 are rotatably attached to the upper frame member 5, the lower ends of the front and rear frame members 10 and 11 are rotatably attached to the lower frame member 7, and both ends of the frame member 6 in the center are attached to the front and rear frame members 8. , 9, as well as the front and rear frame members 1
In the structure in which each of the above-mentioned frame members 5, 6, 7,
8, 9, 10, 11 and the vertical beam 17 are structured as shown in FIGS. 4 to 9.

That is, as shown in FIG. 4, the upper frame member 5 is bent so that its cross section forms an L-shape, similar to the plate strip 5a made of a thin plate that is bent so that its cross section forms an L-shape. A frame structure in which the upper flange 5c and the plate strip 5b made of a thin plate bent inward in an arc shape are arranged in parallel to the longitudinal direction so that a rectangular space 5d is formed inside. In addition, a collar 5e projecting downward is provided at the lower feeding portion of both plate strips 5a, 5b, so that the upper plate 12 can be fixed. As shown in FIG. 5, the central frame member 6 has an upper plate strip 6b formed by bending the outer surface of one elongated thin plate 6a so as to have a square cross section, and a thin plate strip 6b having a cross section. A lower plate strip 6c made of a thin plate bent into a substantially U-shape is positioned parallel to the upper and lower positions, and the lower plate strip 6c is attached to the thin plate 6a with its upper side extended. The upper plate strip 6b is positioned outside the upper side of the plate strip 6c, the lower edge of the upper plate 12 is placed on the upper plate strip 6b, and the lower edge of the upper plate 12 is placed on the lower plate strip 6c. The plate 12 has a frame structure with flanges 6d and 6e for fixing the upper edges of the plate 13, respectively, and the opposing corners of the upper and lower plate strips 6b and 6c are formed into arcs. When the plate 13 is folded inward, the upper and lower plate strips 6b and 6c are prevented from interfering with each other. Lower frame material 7
Almost similarly to the upper frame member 5, as shown in FIG.
A frame body structure is formed by arranging them parallel to each other in the longitudinal direction so as to form a frame structure, and a collar 7d is provided to fix the lower edge of the lower plate 13 to the plate strip 7a.

In addition, front and rear frame members 8, 9, 1 extending in the vertical direction
As shown in FIG. 7, one of the frame members 8 and 9 of the frames 8 and 11 includes plate strips 8a and 9a made of thin plates bent so that the cross section is approximately L-shaped, and It has a frame structure in which plate strips 8b and 9b made of thin plates bent to form a shape are arranged parallel to the longitudinal direction so as to form a rectangular space inside. Protruding tsuba 8c,
Align the front plate of the container with 9c,
Moreover, the side plates 12 and 13 of the container can be fixed to the flanges 8d and 9d that protrude to one side. As shown in FIG. 8, the other frame members 10 and 11 include plate strips 10a and 11a made of thin plates bent so that the cross section is approximately U-shaped, and plate strips 10a and 11a that are bent so that the cross section is L-shaped. Plate strip 10 made of formed thin plate
b, 11b arranged in parallel in the longitudinal direction so as to form a rectangular space inside.
Align the back plate 4 of the container along c.
Furthermore, side plates 12 and 13 of the container can be fixed to flanges 10d and 11d that protrude to one side.

Furthermore, the vertical beam 17 has a cross section U as shown in FIG.
The upper and lower plates 12 and 13 are made of a letter-shaped member, and the portion corresponding to the vertical beam 17 is bent into a corrugated plate shape that protrudes outward, and the vertical beam 17 is inserted into the valley of this bent portion from the opening side. It is designed to fit by pushing it in.

When the present invention in which the frame material of the side wall plate has the above-described frame structure is used as a side wall of a container, each frame 5, 6, 7, 8, as shown in FIGS.
9, 10, 11 are assembled and the upper and lower plates 12, 13 are assembled.
The side walls are completed by tensioning them using the flanges of each frame, and are assembled and used in the same manner as the side walls of the container shown in FIGS. 10 and 11.

When folding the container, the side wall 3 is bent inward into a dogleg shape by applying force from the outside. When applying force from the outside, the plate strips 6b or 6c forming the central frame 6 are pushed inward to separate the plate strips 6b and 6c, and the upper plate 12 is applied to the frame 8, The lower plate 13 rotates around the hinges at the lower ends of the frames 10 and 11, and the upper and lower plates 1
It can be folded so that 2 and 13 are folded on top of each other. In the above, even if the plate strips 6b or 6c are dented by an external force, the frame body 6 as a frame member has a structure consisting of the plate strips 6b, 6c with an internal space, so it can be folded and expanded without any problem. can perform actions. Moreover, since the inner surface of the frame 6 at the center is flush with the thin plate 6a, there is no problem when attaching the pallet.

[Effect of idea]

As described above, according to the side wall structure of the collapsible container of the present invention, the frame material of the side wall is made of thin plate material with an internal space, and the upper frame body has an upwardly protruding flange inside. In addition, the vertical beam is shaped like a U-shape in cross section and is fitted into the bent part of the side wall board from the inside.
The overall weight of the container can be reduced, making it easier to handle, and even when external force is applied to the center of the side wall plate, the hollow structure of the frame in the center prevents slight dents. Even if this occurs, there is no risk of any obstruction during folding or assembly, and the curved flange of the upper frame allows for safe handling during folding and assembly. This can be easily carried out, and the sealing effect can be achieved by the flanges provided on each frame.

[Brief explanation of the drawing]

Fig. 1 is a front view of the side wall showing an embodiment of the side wall structure in the container of the present invention, Fig. 2 is a side view of Fig. 1, Fig. 3 is a perspective view of the side wall seen from the inside, and Fig. 4
The figure is an enlarged view of Fig. 3, Fig. 5 is an enlarged view of Fig. 3, Fig. 6 is an enlarged view of Fig. 3, and Fig. 7 is an enlarged view of Fig. 3. arrow view,
Fig. 8 is an enlarged view of Fig. 3, Fig. 9 is an enlarged view of Fig. 3, Fig. 10 is a perspective view of a collapsible container that has been recently considered, and Fig. 11 is an enlarged view of Fig. 3. 10 is a perspective view showing a state when the container of FIG. 10 is folded; FIG. 3...Side wall, 5, 6, 7, 8, 9, 10, 11
...Frame material (frame body), 5a, 5b, 6b, 6c,
7a, 7b, 8a, 9a, 8b, 9b, 10a,
11a, 10b, 11b... plate strip, 12... upper plate, 13... lower plate.

Claims (1)

[Claims for Utility Model Registration] (1) A vertically extending frame member divided into two in the longitudinal direction is separately fixed to each of the upper and lower frame members extending in the horizontal direction, and each frame member extending in the vertical direction is Both ends of a central frame member extending horizontally in the timber are rotatably connected to the separate frame members, a plate is held between each frame member, and the frame member can be folded in half from the center. In the side wall structure of a container, the above-mentioned upper frame material is made by bending plate and strip materials to form a frame with a space inside, with a collar protruding from the lower part for attaching a plate, and the upper part of the upper frame having a protruding collar extending from inside. In addition to having a structure bent in an arc shape, the lower frame member is made into a structure in which plate and strip materials are bent to form a frame body with a space inside, with a flange protruding from the upper part for attaching a plate. The lower and upper parts of the frame are made up of a long and thin plate, a plate strip bent and fixed so as to have a space on the outer surface of the plate, and a plate strip bent so as to have a space inside. Each of the vertically extending frame members is bent to form a frame with a space inside, with a collar protruding from the side for each plate to be attached to. A side wall structure of a collapsible container characterized by having a vertical structure. (2) A side wall structure in a collapsible container according to claim 1 of the utility model registration claim, in which the upper and lower frames and the vertical frames are assembled by bending two plates and strips. (3) Scope of Utility Model Registration Claim Paragraph 1: The inner side of the upper plate strip is overlapped with the outer side of the collar protruding from the upper part of the lower plate strip in the central frame, and the inner side is the same surface. Side wall structure in the described collapsible container.