JPS6229390Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a metal import/export container in which a corrugated metal plate is used as a side plate. This invention relates to a metal import/export container whose parts can be joined with sufficient strength without any gaps.

[Prior art]

Traditionally, containers used to pack cargo for import and export have been made of wood, but these containers are large in size and weight, making them difficult to transport, and the cost of materials is high. Furthermore, it is disadvantageous in terms of cost, as assembly and disassembly work takes time, and furthermore, there are disadvantages such as poor waterproof function.

In order to solve these problems, import/export containers using metal plates have been developed.

[Problems with conventional technology]

However, since the load strength of the plate itself is low in metal plate containers, it is necessary to provide vertical ribs on the inner surface of the metal plate for reinforcement, but these ribs increase the overall weight of the container. There are drawbacks.

In addition, in order to increase the strength of the metal plate, the plate is provided with uneven parts and vertical ribs are formed integrally with the metal plate.
A structure with a higher section modulus is also being considered. However, when an uneven part is formed on a metal plate, a gap is formed by the uneven part at the joint between the metal plate, aggregate, and bottom member, and in order to prevent rainwater etc. from entering through this gap, Furthermore, there is a drawback that the structure becomes complicated, such as the need to attach a cover plate.

Further, disassembly work was also difficult because it was necessary to use rivets or bolts to join and fix the metal plate of the uneven portion, the aggregate, and the bottom member.

[Purpose of this invention]

The present invention was developed by focusing on the above-mentioned conventional problems.It has a lightweight and simple structure, has excellent load resistance, and completely prevents the infiltration of rainwater, making it easy to carry out demolition work. The purpose of the present invention is to provide a metal import/export container that can be easily manufactured.

[Structure of the present invention]

The metal export/import container according to the present invention has a metal plate attached between the aggregate framed for installing the lid and the bottom member facing the aggregate, as described above. The metal plate is a corrugated metal plate in which curved waves are formed continuously, and at both ends thereof, flat parts that integrally extend in a direction across a plurality of waves are used to press the waves. In addition, a stepped surface that integrally connects the end of the wave and the flat part without a gap is formed at right angles to the flat part, and the flat part is connected to the side surface of the aggregate. The corrugated metal plate is joined to the side surface of the bottom member, and the stepped surface is in contact with the lower surface of the aggregate and the upper surface of the bottom member, and the edge portion of the corrugated metal plate is connected to the aggregate and the bottom member. They are joined without any gaps, and the joints are designed to be durable against vertical loads.

[Example of the present invention]

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is a perspective view showing the entire metal export/import container, Figure 2 is a perspective view showing the disassembled state, Figure 3 is a perspective view of the corrugated metal plate seen from the back, and Figure 4 is its plan view. , Fig. 5 is a side view thereof, Fig. 6 is a perspective view showing the joint of corrugated metal plates, Fig. 7 is a half-sectional view of the metal export/import container, and Figs. 8 and 9 are Fig. 7. FIG. 12 is a partial perspective view showing a joint at an end of a corrugated metal plate.

Reference numeral 1 in the figure is a skid forming a bottom member, and a plurality of wooden bottom plates 3 are fixed to the upper surfaces of two wooden base materials 2. Moreover, pickpocket material 4 is attached to the bottom surface of this wooden base material 2.

The upper end of this container is made of wooden aggregate 5, which is framed in a rectangular shape and reinforced by two beams 5a extending across the inside. This aggregate 5
A corrugated metal plate 6 is stretched between the side surface of the skid 1 and the side surface of the skid 1 serving as the bottom member.

The corrugated metal plate 6 is one in which the uneven portions 6a are continuously formed into a curved shape as shown in FIG. It is. Corrugated metal plate 6
As shown in FIGS. 4 and 5, flat portions 6b are formed on both the upper and lower end sides. This plane part 6b
is formed on the same plane as the plane A that includes the apex 7 of the uneven portion 6a of the corrugated plate, that is, the highest point of the convex portion. The flat portion 6b and both upper and lower ends of the uneven portion 6a are integrally connected by a stepped surface 6c without any gap. The stepped surface 6c and the flat portion 6b form a substantially right-angled L-shape. The recessed portions at both the upper and lower ends are sealed by the stepped surfaces 6c. The stepped surface 6c and the flat portion 6b are formed by pressing a commercially available corrugated steel plate.

By the way, if the width of the corrugated metal plate 6 is long or if the container is relatively small, the four sides of the container can be formed by bending one corrugated metal plate 6. That is, the flat part 6b is stretched along the sides of the skid 1 and the aggregate 5, and the both ends thereof are joined to be assembled. In addition, when joining a plurality of corrugated metal plates 6 to form four sides, both ends of each corrugated metal plate 6 are overlapped, but the overlapping of both ends is at the corner shown in FIG. B
This can be done by That is, in this corner B, as shown in FIG. 6, bent portions 6d and 6e are provided on both side edges of the corrugated metal plate 6, with the apex 7 of the uneven portion 6a serving as a bending line, and the bent portions 6d, 6e
are stacked on top of each other, and the concave and convex portions 6a of the corrugated metal plate 6 of the other party are overlapped with each other. Furthermore, one of the stepped surfaces 6c formed at both the upper and lower ends of the corrugated metal plate 6 fits into the other and overlaps with the other.

Further, as shown in FIGS. 7 to 9 and 12, at the joints between the corrugated metal plate 6 and the skid 1, and between the corrugated metal plate 6 and the aggregate 5, the corrugated metal plate 6
Stepped surfaces 6c formed on both upper and lower end sides of the skid 1 are in contact with the upper surface of the skid 1, and are in contact with the lower surface of the aggregate 5, respectively. Further, the flat portion 6b is in contact with the side surfaces of the skid 1 and the aggregate 5. The plane part 6b and the side surface of the skid 1 are fixed with nails 8a, and the plane part 6b and the side surface of the aggregate 5 are fixed with nails 8b. Although FIG. 12 shows the joint between the corrugated metal plate 6 and the skid 1, the joint with the aggregate 5 has a symmetrical structure.

Further, the lid plate 9 is made of a flat steel plate, and has bent portions 9a formed on its four sides. The cover plate 9 is attached by overlapping the bent portion 9a on the outside of the flat portion 6b at the upper end of the corrugated metal plate 6, and fixing it with nails 10 passing through the bent portion 9a and the flat portion 6b. .

The metal import/export container with the above structure has improved compressive strength from above due to the uneven cross section of the corrugated metal plate 6, and the thickness of the corrugated metal plate 6 is about 0.4 to 0.5 mm, which is thinner than the conventional one. However, it can provide sufficient strength. In addition, lateral impact can be absorbed by the expansion and contraction of the uneven portion 6a.

In addition, since rainwater travels from the bent portion 9a of the lid plate 9 to the outer surface of the corrugated metal plate 6, and then flows down from the flat portion 6b at the lower end of the corrugated metal plate 6 to the lower part of the skid 1, rainwater does not infiltrate into the container. is completely preventable.

In particular, the waterproofing is ensured at the joint between the corrugated metal plate 6 and the cover plate 9 and at the joint between the corrugated metal plate 6 and the skid 1, which are the places where rainwater is most likely to penetrate. That is, as shown in Fig. 12, the flat surface 6b is provided on the side surface of the wooden bottom plate 3, and the stepped surface 6c is provided on the upper surface of the end of the wooden bottom plate 3. Moreover, the uneven surface 6a of the corrugated metal plate 6 and the flat surface 6
Since the stepped surface 6c forms a continuous gap-free joint between the corrugated metal plate 6 and the skid 1, the joint between the corrugated metal plate 6 and the aggregate 5 is completely sealed.

Furthermore, the stepped surface 6c is formed at right angles to the flat portion 6a, and since this stepped surface 6c contacts the upper surface of the wooden bottom plate 3 over a wide area, the load from above is applied to the stepped surface 6c. The load is received by pressure contact with the upper surface of the bottom plate 3, and the load-bearing strength is sufficient. Therefore, the end portions of the uneven portions 6a do not bite into the bottom plate 3. This advantage also applies to the joint between the corrugated metal plate 6 and the aggregate 5. In addition, the stepped surface 6c and the flat surface 6b form a substantially right-angled L-shape, and each abuts against the side surface, top surface, or bottom surface of the skid 1 and the aggregate 5, so that positioning during assembly is easy. is also easy.

In addition, nails 10 and 8 are used for dismantling work after transporting cargo.
This can be easily done by removing a and 8b.

Next, FIGS. 10 and 11 show another embodiment, in which a corrugated metal plate 6' is used as the bottom plate of the container.

In this example, the flat part 6'b of the corrugated metal plate 6' is brought into contact with the two wooden base materials 2, and the stepped surface 6'c is brought into contact with the opposing inner surface of the wooden base material 2, and the flat part 6'b is brought into contact with the two wooden base materials 2. A wooden frame material 11 is brought into contact with 6'b,
It is fixed with nails 12. Further, another wooden frame member 13 is brought into contact with both ends of the frame member 11, and the lower protrusion 13a of this frame member 13 is interposed and fixed between both base members 2.

Even if the corrugated metal plate 6' is used as the bottom plate in this way, the concave and convex portions 6'a can sufficiently support the baggage inside.

Note that since the corrugated metal plate 6 is easily deformable, it can also be formed into a polygonal shape to form a cylindrical container.
Further, the uneven portion of the corrugated metal plate 6 is not limited to a circular curved surface, but may be a waveform with a trapezoidal cross section, or the uneven portion may not be continuous but have concave portions or convex portions formed at regular intervals. It's okay to be.

[Effects of this invention]

As described above, according to the present invention, the following effects can be achieved.

(1) A corrugated metal plate with continuous curved waves is used as the metal plate that makes up the side plate. It has strong strength against loads from any direction. Therefore, the load capacity of the container is very high. Further, since the corrugated metal plate in which curved waves are continuously formed can be used as is, a commercially available corrugated plate can be used as is, and the material cost is also economical.

(2) The flat parts formed at both ends of the corrugated metal plate are formed by pressing waves. Since this flat part can be easily formed by compressing the end of the corrugated metal plate, no special mold is required, and it can be formed at low cost.

(3) Since the flat part and stepped surface are integrally formed on both ends of the corrugated metal plate without any gaps, both ends of the corrugated metal plate are connected to the aggregate and bottom member in the assembled state. The sides are joined without any gaps. Therefore, this joint is sealed, reliably preventing intrusion of rainwater, etc., and reliably protecting the packaged internal product.

(4) As a result, it is no longer necessary to provide a special cover plate at the joint between both ends of the corrugated metal plate to prevent rainwater from entering.
The structure is simplified and the weight is reduced.

(5) Furthermore, since the stepped surfaces are installed on the lower surface of the aggregate and the upper surface of the bottom member, the edges of the waves of the corrugated metal plate will not be loaded and dig into the aggregate and the bottom member. . In addition, since both end sides and the flat part of the wave are integrally connected by the stepped surface, the strength of both ends of the wave is high, and even if the load from above is large, the bottom end of the wave is It does not deform.

(6) Also, since the stepped surface and the flat part are formed at right angles, the stepped surface comes into contact with the top surface of the bottom member and the bottom surface of the aggregate over a wide area, and the bottom surface of the aggregate The load is reliably received by the stepped surfaces on the edges of the corrugated metal plate. That is, the load of the aggregate and the corrugated metal plate is received by the stepped surface formed at the lower end side being brought into full contact with the upper surface of the bottom member. Therefore, the load bearing capacity of the container is improved, and furthermore, the corrugated metal plate does not dig in as described above, and furthermore, there is no deformation such as buckling, so deformation of the container can be prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a perspective view showing the entire metal import/export container, Figure 2 is a perspective view showing an exploded state, Figure 3 is a perspective view of a corrugated metal plate, Figure 4 is a plan view, and Figure 5 is a side view. ,
Figure 6 is a perspective view showing the joint of corrugated metal plates;
The figure is a half-sectional view of a metal export/import container, Figures 8 and 9 are partially enlarged views of Figure 7, Figure 10 is a perspective view showing an embodiment in which the bottom plate is formed from a corrugated metal plate, and Figure 11
The figure is an exploded perspective view, and FIG. 12 is a partial perspective view showing a joint at the end of a corrugated metal plate. 3... Bottom member, 5... Aggregate, 6... Corrugated metal plate, 6a... Wave, 6b... Flat part, 6c... Stepped surface, 9... Lid body.

Claims (1)

[Scope of utility model registration request] In a metal import/export container in which a metal plate is attached between the aggregate on which the lid is installed and the bottom member facing the aggregate, the metal plate has continuous curved waves. It is a corrugated metal plate formed by
At both end sides, flat parts that integrally extend in the direction across the plurality of waves are formed by pressing the waves, and the ends of the waves and the flat parts are integrally connected without any gaps. A stepped surface is formed perpendicularly to the flat portion, and the stepped surface is joined to the side surface of the aggregate and the side surface of the bottom member, and the stepped surface is connected to the lower surface of the aggregate and the upper surface of the bottom member. A metal export/import container characterized by being in contact with a metal container.