JPH0329656B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a collapsible container, and more particularly to a collapsible container that protects loaded cargo by preventing water from entering the interior of the container.

Generally, when transporting goods, foldable containers assemble a pair of side panels and an end panel to form a box and store the goods inside, but when transport is complete, each panel is placed on top of the floor panel. It can be folded to reduce storage space.

FIG. 1 shows the assembled state of such a foldable container. In the figure, reference numeral 1 indicates a rectangular floor panel, and on opposite long sides of this floor panel 1 there are side panels 2, The lower edge of 3 is hinged. Then, on the remaining opposing edge, pillow frames 4 and 5 are placed.
are fixed, and end panels 6 and 7 are pivotally attached to the upper edges of the pillow frames 4 and 5. Panel 2 on these sides,
3 and the end panels 6 and 7 are raised substantially vertically to form a box when assembled, and a ceiling panel 8 is attached to the upper opening of the box and is secured using appropriate fastening fittings.

To fold such a collapsible container, first remove the ceiling panel 8 as shown in FIG. 3 so that they overlap (Fig. 4), then fold down one end panel 6 on top of it (Fig. 5), and then fold the remaining end panel 7 on top of it (Fig. 6).
Finally, place the ceiling panel 8 on top (Fig. 7). Even in this type of container, it is strictly prohibited that water enters into the container during transportation, and for this reason, sealing pads are usually attached to the joints of each panel.

FIG. 7 shows an example of a conventional waterproofing device, in which a gable panel 6 is foldably joined to a pillow frame 4 of a floor panel 1 via a hinge 9, and the joint is sealed. A seal packing 10 is hung downwardly from the outer peripheral edge of the lower end of the end panel 6, and its tip 10a is adapted to come into contact with the outer surface of the pillow frame 4.

However, this type of seal packing 10 is very soft and easily damaged compared to the steel material that makes up the container, and it also tends to deteriorate during long-term use and does not perform a reliable sealing function. There was a problem. For this reason, the entire container is often covered with a sheet cover.

Therefore, the purpose of the present invention is to provide a folding type container that is waterproof between the joints of the floor panel, side panel, end panel, and ceiling panel without using sealing pads, and that prevents water from entering the container during assembly. The purpose is to provide a container.

In order to achieve the above object, the present invention pivots an end panel to each of a pair of opposing edges of a rectangular floor panel, arranges a side panel to each of the remaining opposing edges, and connects these panels. In a foldable container in which the box is assembled by standing up and a ceiling panel is attached to the upper opening, an upper seal frame is attached to the outside of the upper ends of the end panels and side panels, and the ceiling is attached to the top surface of this upper seal frame. While the lower surface of the seal box protruding from the lower surface of the outer periphery of the panel is in close contact with the lower surface of the panel, a lower seal frame is provided at the lower end of the end panel that projects laterally, and the seal portion of this lower seal frame is attached to the floor panel. A draining piece is provided on the upper surface of the floor panel on the back side of the seal portion, and a lower seal frame is provided on the lower end of the side panel, and this lower seal frame is attached to the floor panel. The lower seal frame is housed in a gutter formed on the panel side, and a drainer is provided on the floor panel side inside this lower seal frame that protrudes into the gutter. A corner post is provided with a seal frame, and on the other side, a corner post is provided with a flexible portion bent to form a substantially closed loop having a square cross section and a seal portion connected to the free end of the flexible portion. The present invention is characterized in that the side seal frame and the corner post are brought into close contact by utilizing the flexibility of the corner post.

An embodiment of the foldable container according to the present invention will be described below with reference to FIGS. 8 to 10.

FIG. 8 is a cross-sectional view of the container taken along the - line in FIG. An upper seal frame 11 made of an angle member is fixed to the outside of the upper end. on the other hand,
A seal box 12 made of a hollow square-shaped member in cross section is protruded from inside the outer peripheral edge of the ceiling panel 8. When the ceiling panel 8 is installed,
The lower surface of the seal box 12 is in close contact with the upper surface of the flange 11a of the seal frame 11. Also, according to a preferred embodiment:
A rain shield plate 1 is placed below the outer surface of the seal box 12.
3 is fixed so as to protrude downward.

On the other hand, a lower seal frame 14 made of an angle member is fixed to the side panel 2 and the lower end thereof, and this lower seal frame 14 is configured to fit tightly into a side groove 15 formed in the floor panel 1. It is located. To explain the structure of this part in detail, the floor panel 1 consists of a floor plate 16 bent into a corrugated shape and a floor frame 17 that supports this floor plate 16. An angle 18 and a draining frame 19 are lined up on the upper surface of the floor frame 17. A gutter 1 is provided between the two.
5 is formed. The draining frame 19 is bent to cover the cut of the floor plate 15 which is bent into a corrugated shape, and its upper end is connected to the side groove 1.
A drainer 20 is formed protruding into the container 5, and this drainer 20 prevents water from entering the container. Note that it is preferable to provide a drainage port at a suitable location at the bottom of the side gutter 15.

Next, referring to FIG. 9, the waterproof structure between the end panel, floor panel, and ceiling panel will be explained. In FIG. 9, an upper seal frame 21 made of an angle member is fixed to the outer side of the upper end of the end panel 6, similar to the side panels. On the other hand, a seal box 22 is fixed to the lower surface of the outer peripheral edge of the ceiling panel 8, which is made of a member having a hollow cross section. Therefore, when the ceiling panel 8 is attached, the lower surface of the seal box 22 is in close contact with the upper surface of the flange 21a of the upper seal frame 21 to prevent rainwater from entering. Furthermore, a rain shield plate 23 is fixed to the lower outer surface of the seal box 22 so as to project downward in the same manner as the side panels.

On the other hand, a lower seal frame 24 made of Z-shaped steel is fixed to the outer side of the lower end of the end panel 6, and this lower seal frame 24 is attached to the center portion 24.
a, a connecting part 24b rising vertically from one end of this part, and a sealing part 24c hanging downward from the other end of the central part 24a, and the sealing part 24c is connected to the outer surface of the pillow frame 4. The length is determined so that they partially overlap.

In addition, the center portion 24a of the lower seal frame 24
The space between the pillow frame 4 and the upper surface of the pillow frame 4 is foldably supported by a hinge 9. Furthermore, according to a preferred embodiment, a draining piece 25 is provided on the upper surface of the pillow frame 4.
is erected to prevent rainwater from entering from below.

Next, referring to FIG. 10, the waterproof structure at the abutting portion between the side panel and the end panel will be described.

FIG. 10 shows a waterproof structure between the side panel 2 and the end panel 7, and a side seal frame 26 is fixed to the outside of the side panel 2 and the side end. This side seal frame 26 is made of Z-shaped steel, and includes a central portion 26a, a connecting portion 26b connected to both ends of the central portion 26a, and a sealing portion 26c extending in the opposite direction.
The connecting portion 26b is welded to the surface of the side panel 2.

On the other hand, a corner post 27 is fixed to the side end of the end panel 7, and this corner post 27
is a joint 27 welded to the outer surface of the end panel 7.
a, a flexible portion 27b whose cross section is bent into a substantially square shape to provide a spring effect, and a seal portion 27c connected to the free end of this flexible portion 27b and extending in the direction of the side panel 2. It is configured. Furthermore, the flexible portion 27b and the seal portion 27
A hook-shaped press plate 28 is fixed between the side seal frame 26 and the hook-shaped hook 29 fixed to the side seal frame 26 at the upper edge of this press plate 28 during assembly.
It is now possible to hook. By the way, when assembling, keep the pair of end panels 6 and 7 upright, and insert each of the side panels 2 and 3 into the gutter 1 from above.
5, and the hook 29 and the presser plate 28 should be engaged with each other just before dropping.

Since the foldable container according to the present invention is constructed as described above, when assembling the container, the pair of end panels 6 and 7 are pulled up about the hinges 9 to stand upright, and the side panels 2 and 3 are vertically dropped into the side gutter 15 from above. At this time, the seal portion 26c of the side seal frame 26 is brought into contact with the outer surface of the flexible portion 27b, and the hook 29 is attached to the presser plate 28.
It needs to be hooked to the top of the . Thereafter, after the articles to be transported are stored inside, the ceiling panel 8 is attached from above so as to close the opening formed by the side frames and the end frame. As a result, the lower surfaces of the seal boxes 12 and 21 are brought into close contact with the upper surfaces of the upper seal frames 11 and 22. Although not shown, the ceiling panel 8 is fastened to the side panels 2, 3 and the end panel 6,
7 completes the assembly.

When the container of the present invention assembled in this way is left outside during transportation and rain falls, the rain that falls on the ceiling panel 8 drips down the surface of the rain shield plates 13 and 23, but the seal box 12 ,22
Since the lower surface of the container is in close contact with the upper surface of the upper seal frames 11, 21, rainwater is prevented from entering the container from this portion. In addition, rainwater flowing downward on the surfaces of the end panels 6 and 7 is absorbed by the seal portion 24c of the lower seal frame 24 of the end panels.
flows downward along the surface of the At this time, even if rainwater enters the back side of the seal portion 24c, the draining piece 25 reliably prevents the rainwater from entering. Further, rainwater flowing downward on the surfaces of the side panels 2 and 3 falls into the side gutter 15, but is normally drained from a drainage port provided at the bottom of the side gutter 15. Further, even if the water level in the side gutter 15 rises due to a small amount of drainage, the drainer 20 can prevent water from entering the container.

As described above, according to the container of the present invention, it is possible to prevent rainwater from entering the container without requiring any waterproof packing, and in particular, the container has a flexible portion on one of the side panels and the end panel. Since a corner post is provided and a side seal frame is provided on the other side, the flexibility of the corner post can be used to bring the side panel and end panel into close contact with each other without any sealing material, thereby preventing rainwater from entering. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the assembled state of a foldable container to which the present invention is applied, FIGS. 2 to 7 are perspective views showing the disassembly and folding process of the container, and FIG. A cross-sectional view along the - line of
Figure 9 is a sectional view taken along the - line in Figure 1;
The figure is a cross-sectional view taken along the - line in FIG. 1, and FIG. 11 is a side sectional view showing a conventional seal structure. 1... Floor panel, 2, 3... Side panel, 4, 5
... Pillow frame, 6, 7 ... Width panel, 8 ... Ceiling panel, 11 ... Upper seal frame, 12 ... Seal box, 14 ... Lower seal frame, 15
... Side gutter, 19 ... Drainer frame, 20 ... Drainer, 22 ... Seal box, 24 ... Lower seal frame, 25 ... Drainer piece, 26 ... Side seal frame, 27 ... Corner post.

Claims (1)

[Claims] 1. Pivotally attach the end panel to each of a pair of opposing edges of a rectangular floor panel, place side panels on each of the remaining opposing edges, and assemble the box by standing these panels up to form an upper opening. In a collapsible container with a ceiling panel attached to the
An upper seal frame is attached to the outside of the upper ends of the end panel and the side panels, and the lower surface of the seal box protruding from the lower surface of the outer peripheral edge of the ceiling panel is in close contact with the upper surface of the upper seal frame. A lower seal frame is provided at the lower end of the frame that extends to the side, and the seal part of the lower seal frame overlaps a part of the outer surface of the floor panel. A draining strip is provided on the upper surface of the floor panel behind the seal part. Further, a lower seal frame is provided at the lower end of the side panel, and this lower seal frame is accommodated in a gutter formed on the floor panel side and provided with a drainage hole, and the inner side of this lower seal frame is A drainer is provided on the floor panel side that protrudes into the gutter, a side seal frame is provided on one side end of the side panel and the end panel, and a side seal frame is provided on the other side with a square cross section. A corner post is provided with a flexible portion bent to form a substantially closed loop and a seal portion connected to the free end of the corner post, and the side seal frame and the corner post are connected to each other to increase the flexibility of the corner post. A foldable container characterized by being made to fit tightly together.