JP2021130500A - Assembly steel transport container - Google Patents

Abstract

To increase supporting strength of a cargo support member arranged at a skid base waist without providing an additional lubricant etc.SOLUTION: An assembly steel transport container has a rectangular skid base frame 10, and a pair of side frames 20, 30 detachably engaged with opposite two sides of the skid base frame 10. The side frames 20, 30 have an edge frame part which is joined to be foldable to the side frames 20, 30 and disposed thereabove in non-contact with two sides other than the two sides opposed to each other in a folding state except for a folded portion, at one end of each side frame or both ends of either one side frame.SELECTED DRAWING: Figure 1B

Description

The present invention relates to a prefabricated steel transport container, and in particular, by configuring the adjacent side frame and the toe frame with a foldable single frame, the prefabricated steel transport that facilitates assembly and disassembly and reduces the number of parts. Regarding the container.

Conventionally, Patent Document 1 and the like have proposed a steel transport container that can be assembled and disassembled without using tools, bolts, or the like.

Japanese Unexamined Patent Publication No. 8-143030

However, the conventional steel transport container has a structure in which the pillar members at both ends of the bendable single frame are tyed and engaged with each other at the diagonal corners of the lower back frame. Then, the lower stiles connected to the lower ends of the tying-engaged pillar members were arranged on the sides of the lower back frame.

For this reason, when a load support member such as a corrugated panel (floor panel) is placed on the lower back frame, the front end portion and the rear end portion of the support member may be extended onto the lubricant of the lower back frame having the lower stile. could not. It is desirable to support the load support member with as many lubricants as possible, but in the conventional transport container of this type, there is a risk that the support strength of the load support member will be insufficient due to the above-mentioned restrictions. Of course, it is possible to reinforce the support member with an additional lubricant or the like, but doing so increases the number of parts, the product cost, and the product weight.

The present invention has been proposed in view of such circumstances, and can increase the supporting strength of a load supporting member in a steel transport container having a pair of bendable single frames without providing an additional lubricant or the like. The purpose is to.

In order to solve the above problems, the present invention has a rectangular lower back frame and a pair of side frames that are detachably engaged with two opposite sides of the lower back frame, and the pair of side frames , Except for two sides other than the two opposite sides and the bent portion in the bent state while being foldably connected to the side frame at one end of each side frame or at both ends of one of the side frames. It is characterized by having a toe frame portion arranged above it in a non-contact manner.

According to the present invention, it is possible to effectively utilize the two sides of the lower back frame in which the side frames are not engaged as support portions, and it is possible to increase the support strength of the load support member without providing an additional lubricant or the like. become.

It is a perspective view after the assembly completion of the assembly type steel transport container which concerns on embodiment of this invention. It is a perspective view of the assembly type steel transport container which shows the standing state of a side frame. It is a floor plan of the side frame. It is a floor plan view of the modification of the side frame. It is a perspective view which shows the positioning state of a side frame. It is a perspective view of the base end portion of a side frame. It is a perspective view which shows the engagement state of the side frame and the toe frame part, (a) the perspective view just before engagement, (b) the perspective view in the middle of engagement, (c) the perspective view after engagement. It is a top view of the corner part which shows the engagement state of the side frame and the toe frame part, and is (a) the plan view before mounting and (b) the plan view after mounting of a corner metal fitting. It is (a) plan view, (b) front view, (c) side view of a corner metal fitting. It is a perspective view of the assembly type steel transport container which used the corrugated panel under the waist. It is (a) plan view, (b) front view, (c) side view under the waist using a corrugated panel. It is the end perspective view of the corrugated panel under the waist. It is sectional drawing which shows the state which hangs the transfer plate under the waist and lifts and unloads a load (motorcycle), (a) the sectional view under the waist of this embodiment, (b) the conventional sectional view under the waist. ..

The assembled steel transport container according to the embodiment of the present invention will be described below with reference to the drawings. In the following description, duplicate description will be omitted as appropriate by assigning the same reference numerals to the same parts across a plurality of drawings.

As shown in FIGS. 1A and 1B, the assembled steel transport container 100 includes a rectangular lower back frame 10, two side frames 20 and 30, four corner metal fittings 40, and two ceiling beams 50. Has. The two side frames 20, 30, the four corner metal fittings 40, and the two ceiling beams 50 have the same shape and size, respectively.

(Lower waist frame)
The rectangular lower waist frame 10 has four sliding members 11 to 14 arranged parallel to each other in the lateral direction, and a longitudinal direction, that is, a direction orthogonal to the sliding members 11 to 14 so as to connect the sliding members 11 to 14. It has two outer connecting members 16 and 17 arranged in, two inner connecting members 18, and a load supporting member 19 arranged between the inner connecting members 18.

The load support member 19 is used here to support a self-supporting motorcycle, which is a product to be transported. The load support member 19 has a beam-shaped transfer plate that supports the front and rear wheels of the motorcycle, and the cross section of the transfer plate is V-shaped. This stably supports the front and rear tires.

Further, an arc-shaped recess 19a is formed at one end of the load supporting member 19, and the tires of the front wheels of the motorcycle are positioned in the recess 19a so that the position of the motorcycle in the front-rear direction with respect to the transport container 100 is constant. In addition, the recess 19a lowers the height of the handlebar of the motorcycle and saves the height of the transport container 100. Both ends of the motorcycle handlebar are located between the pillar members 22 and 23 of the side frames 20 and 30, which will be described later, and between the pillar members 32 and 33.

The front and rear ends 19b and 19c of the load support member 19 are supported by the lubricants 11 and 14 at both ends in the longitudinal direction of the lower back frame 10, and the intermediate portion of the load support member 19 is supported by the other lubricants 12 to 13. Will be done. The same applies to both ends of the inner connecting member 18 (see the enlarged view of FIG. 1A). Specifically, the lubricants 11 to 14 are made of the same hat-shaped steel, and the lower surface of the load supporting member 19 is welded to the upper end flange of each of the lubricants 11 to 14. The front and rear ends of the load support member 19 extend to the outer flanges of the lubricants 11 to 14 at both ends and are welded.

In the conventional transport container, both front and rear ends of the load support member 19 can be welded only to the inner flanges of the lubricants 11 and 14 at both ends. This is because the lower frame of the toe frame is in contact with the outer flanges of the lubricants 11 and 14, and both ends of the load support member 19 cannot be extended to the outer flanges and welded. Therefore, when a large load is applied to the load supporting member 19, there is a problem that the central portion of the lubricants 11 and 14 in the longitudinal direction is twisted due to insufficient support strength of the lubricants 11 and 14, and the lubricants 11 and 14 are bulged and deformed.

However, in the present embodiment, as described above, both front and rear ends of the load support member 19 are extended to the outer flanges of the lubricants 11 to 14 and welded. As a result, the load acting on the lubricants 11 and 14 can be stably supported, and the deformation of the lubricants 11 and 14 due to insufficient strength can be suppressed. Further, by extending the front and rear ends of the load supporting member 19 in this way, it is possible to make the maximum effective use of the external dimensions of the lower back frame 10 as a mounting space for the transported product.

Since the load supporting member 19 is stably supported by all the lubricants 11 to 14 in this way, sufficient support strength can be ensured. In a conventional transport container composed of a single frame in which the side frame and the toe frame can be bent, the lower stile of the toe frame becomes an obstacle as described above. It could not be effectively used for support.

(Side frame)
One of the two side frames 20 and 30 is a horizontal frame 20 that connects four vertical pillar members 21 to 24 arranged at predetermined intervals and the upper ends of these pillar members 21 to 24. It has an upper stile 25, a horizontal lower stile 26 connecting the lower ends of the column members 21 to 24, and three diagonal members 27a, 27b, 28. The diagonal members 27a and 27b are arranged as reinforcing members between the column members 21 and 22 and between the column members 23 and 24. Further, the diagonal member 28 is arranged as a reinforcing material for the end upper frame 25b. The column member 24, the end upper frame 25b, and the diagonal member 28 constitute a toe frame portion having a truss structure based on a triangle.

The other side frame 30 has the same structure, and has four vertical pillar members 31 to 34 arranged at predetermined intervals and a horizontal upper stile 35 connecting the upper ends of these pillar members 31 to 34. , Has a horizontal lower stile 36 connecting the lower ends of the column members 31 to 34, and three diagonal members 37a, 37b, 38. The diagonal members 37a and 37b are arranged as reinforcing members between the column members 31 and 32 and between the column members 33 and 34. Further, the diagonal member 38 is arranged as a reinforcing material for the end upper stile 35b.

The column member 34, the end upper frame 35b, and the diagonal member 38 form a toe frame portion having a truss structure based on a triangle. The four corner metal fittings 40 and the two ceiling beams 50 will be described after the explanations of FIGS. 1A to 4A.

As shown in FIG. 2A, the upper stile 25 and the lower stile 26 of the side frame 20 are configured to be bendable at portions surrounded by ellipses (upper and lower end portions of the pillar member 24). This is the same for the other side frame 30.

That is, the upper stile 25 is composed of extruded members having a U-shaped or U-shaped cross section, and the two sides of the cross section are pre-cut between the upper stile 25a of the main body and the upper stile 25b at the end. The remaining side is configured to be bendable by plastic deformation along the bending line F indicated by the broken line.

On the other hand, the lower stile 26 is composed of an extruded member having an L-shaped cross section, and one side of the L-shaped cross section is cut in advance between the lower stile 26a of the main body and the lower stile 26b at the end. The remaining side is configured to be bendable by plastic deformation along the bending line F indicated by the broken line.

The positions of the bending lines F of the upper stile 25 and the lower stile 26 are the same in the horizontal direction, and a truss structure composed of an end upper stile 25b and a diagonal member 28 along the upper and lower bending lines F. It is said that the toe frame part of the truss can be bent at a right angle. By bending the toe frame portion at a right angle in this way, the toe surface of the transport container 100 can be formed as shown in FIG. 1A.

Regarding the other side frame 30, the right-angle bending of the toe frame portion by the bending line F is the same as described above, and as shown in FIG. 1A, the transport container is opposed to the right toe frame portion of the side frame 20. The toe surface can be configured on the left side of 100. The toe frame portion of the truss structure described above is arranged above the two sides of the lubricants 11 and 14 under the waist 10 in a non-contact manner, except for the bent portion. As shown in FIG. 2B, the side frame 20 may have a toe frame portion formed at both ends of one side frame 20 and the other side frame 20 may not have a toe frame portion.

(Inclined slit, longitudinal slit)
Inclined slits C1 and lengths at the tips of the end upper stile 25b and the end upper stile 35b, and at one end of the main body upper stile 25a and the main body upper stile 35a (the end on the side without the bending line F), respectively. The slit C2 is formed. Further, longitudinal slits C2 are provided at the base ends of the end upper stile 25b and the end upper stile 35b, and at the other ends (the side where the bending line F is located) of the main body upper stile 25a and the main body upper stile 35a, respectively. It is formed.

4A to 4C show inclined slits C1 and longitudinal slits C2 formed at the tip of the end upper stile 25b and one end of the main body upper stile 35a, respectively. The inclined slit C1 is inclined at an angle of 45 degrees with respect to the longitudinal direction of the end upper stile 25b and the end upper stile 35b and the longitudinal direction of the main body upper stile 25a and the main body upper stile 35a to have a predetermined length. It is extending.

The longitudinal slit C2 extends in the same direction with respect to the longitudinal direction of the end upper stile 25b and the end upper stile 35b and the longitudinal direction of the main body upper stile 25a and the main body upper stile 35a by a predetermined length. The inclined slit C1 and the longitudinal slit C2 act as engaging holes for engaging the engaging claws 41 and 42 of the corner fitting 40, which will be described later.

When the end upper stile 25b and the inclined slit C1 of the end upper stile 35b engage the end upper stile 25b (36b) with the main body upper stile 35a (25a) from the horizontal direction as shown in FIG. 4A (c). , Are arranged so as to overlap each other. That is, when the insertion tongue piece P3 formed at the tip of the end upper stile 25b (36b) is inserted into the engaging slit C3 formed at the tip side surface of the main body upper stile 35a (25a), the end upper stile is inserted. The upper wall of the tip of 25b (36b) overlaps the upper wall of the tip of the main body upper stile 35a (25a), and the inclined slits C1 of both overlap.

(Corner metal fittings)
4B (a) and 4B (b) are views of a state in which the tip end portion of the end upper stile 25b is engaged with the tip end portion of the main body upper stile 35a as shown in FIG. 4A (c). The engaging claws 41 and 42 of the corner fitting 40 of FIG. 4B (b) are inserted and engaged with the inclined slit C1 and the longitudinal slit C2 seen in FIG. 4B (a). With this, the end upper stile 25b and the main body upper stile 35a are firmly connected by the corner metal fitting 40.

As shown in FIG. 5, the corner metal fitting 40 is composed of a sheet metal member 43 having a substantially right-angled isosceles triangle shape in a plan view. An engaging claw 41 extending vertically downward is formed at a right-angled corner of the sheet metal member 43. Further, another engaging claw 42 is formed vertically downward adjacent to the other corner portion of the sheet metal member 43.

A hemispherical fitting convex portion 44 is formed in the central portion of the sheet metal member 43. The fitting convex portion 44 is for preventing a positional deviation between the upper and lower transport containers 100 when the transport containers 100 of FIG. 1A are stacked. The fitting convex portion 44 is fitted into the circular fitting holes formed in the bottom walls of both ends of the lubricants 11 and 14 of the upper transport container 100 in the stacked state.

A predetermined length so that the two orthogonal sides of the sheet metal member 43 are in contact with the outer surface of the tip of the upper stile 25b and the upper stile 35a of the main body (or the outer surface of the outer tip of the upper stile 35b and the upper stile 25a of the main body). A positioning piece 45 extending downward is formed. The positioning piece 45 prevents the tip of the end upper stile 25b and the main body upper stile 35a, and the tip of the end upper stile 35b and the main body upper stile 25a from being displaced outward. Further, at the corner portion where the bending line F is located, the positioning piece 45 maintains the right-angled bent state of the main body upper stiles 25a and 35a and the end upper stiles 25b and 35b.

A V-shaped bent portion 45a is formed at the lower end portion of the positioning piece 45. In FIG. 4B, the top of the bent portion 45a engages with the lower edge of the outer wall of the tip of the upper end stile 25b and the upper stile 35a of the main body to prevent the corner metal fitting 40 from rising or falling off. The same applies to the other corner metal fittings 40.

Convex portions 46 by embossing are formed downward at two locations near the acute-angled portions of the sheet metal member 43. The convex portion 46 engages with the end upper stiles 25b and 35b and the inner corners of the main body upper stiles 25a and 35a, respectively. As a result, the end upper stiles 25b and 35b and the main body upper stiles 25a and 35a are prevented from being displaced inward.

(Assembly of transport container)
To assemble the transport container 100 as shown in FIG. 1A, first, the two side frames 20 and 30 are bent at right angles along the bending line F of FIG. 2A to form an L shape. By vertically raising the two L-shaped side frames 20 and 30 from a slightly outwardly tilted state as shown in FIG. 1B, the horizontal flange portion of the lower frame of the side frames 20 and 30 is placed below the waist. The outer connecting members 16 and 17 of the frame 10 are engaged with the lower side of the inner folding portion of the grip metal fittings.

Explaining this state with reference to FIGS. 3B and 3C, the horizontal flange portion 26a1 of the main body lower frame 26a of the side frame 20 is engaged with the lower side of the inner folding portion 16a of the grip metal fitting of the connecting member 16. At this time, the lower end portion of the pillar member 22 is fitted into the positioning notch portion 16b formed in the grip metal fitting. With this, the side frames 20 and 30 can be positioned and fixed to the lower back frame 10.

Next, the insertion tongue piece P3 at the tip of the vertically raised end upper frames 25b and 35b of the side frames 20 and 30 is inserted into the engaging slit C3 of the main body upper frames 35a and 25a. Then, as shown in FIG. 4B (b), the corner metal fitting 40 is mounted from vertically above.

Finally, the two ceiling beams 50 are horizontally hung between the upper stiles 25 and 35 to complete the assembly of the transport container 100. As shown in the enlarged view of FIG. 1A, two engaging portions 50a bent in an L shape are formed at both ends of the ceiling beam 50, so that the engaging portions 50a sandwich the convex portion of the column member 23. Engage in a sloppy manner. This prevents the position of the ceiling beam 50 from shifting. In the assembled transport container 100, as shown in FIG. 1A, the toe frame portion of the truss structure is arranged above the two sides of the lubricants 11 and 14 under the waist 10 in a non-contact manner except for the bent portion. ..

(Modified example of the lower back frame)
The load support member 19 of the lower back frame 10 described above is used for supporting a motorcycle, but the lower back frame 10 to the load support member 19 may be of various types depending on the use of the assembled steel transport container 100 or the product to be transported. It can be transformed. FIG. 6 is a modification of the lower back frame 10, in which the corrugated panel 15 as the load supporting member of FIG. 7 is welded onto the lubricants 11 to 14.

In the conventional transport container in which the corrugated panel 15 is attached to the lower back frame 10, the uneven end portions of the corrugated panel are welded only to the inner flange portions of the lubricants 11 and 14 at both ends. This is because the lower frame of the toe frame is in contact with the outer flange portions of the lubricants 11 and 14, so that the uneven end portion of the corrugated panel cannot be extended to the outer flange portion and welded. Therefore, when a large load is applied to the corrugated panel 15, the central portions of the lubricants 11 and 14 in the longitudinal direction are twisted and easily bulge and deform.

However, in the present embodiment, since the lubricants 11 and 14 at both ends are open as described above, as shown in FIG. It extends to the outer flange portion 14a of the 14 and is welded to both the inner and outer flange portions 14a and 14b of the lubricant 14. The same applies to the lubricant 11 on the opposite side as in FIG. As a result, both ends of the corrugated panel 15 can be stably supported by the lubricants 11 and 14, and the outward swelling deformation of the lubricants 11 and 14 due to insufficient strength can be suppressed.

The four corners of the corrugated panel 15 (the portion of the ellipse VIII in FIG. 7), that is, the both ends 15b in the lateral direction of the concave-convex both ends do not extend to the outer flange 14a of the lubricant 14 as shown in FIG. Weld only to the portion 14b. The same applies to the lubricant 11 on the opposite side as in FIG. This is because if it is extended to the outer flange portion 14a, it interferes with the lower end stile 26b and the lower end portion (bent portion) of the diagonal member 28. A panel receiver 10a is fixed on the outer flange portion 14a, and the end lower stiles 26b and 36b bent at a right angle are held by the panel receiver 10a.

(Loading and unloading of cargo)
According to the transport container 100 of the present embodiment, when the transfer plate 70 is used to lift and lower the motorcycle as a cargo on the lower back 10 as shown in FIG. 9A, the tire 60 of the motorcycle is smoothly moved. be able to. That is, since the end 19c of the load support member 19 extends to the outer dimensions of the lower back 10, there is no gap between the transfer plate 70 and the load support member 19, and the tip of the transfer plate 70 is a lubricant 14 Since it can be stably supported by the above, the deformation of the lubricant 14 can be prevented. Therefore, the tire 60 can be moved smoothly.

On the other hand, in the conventional transport container, as shown in FIG. 9B, a gap is formed between the transfer plate 70 and the load supporting member 19, and the lubricant 14 is deformed (particularly, the outer flange portion 14a is deformed). Therefore, the motorcycle tire 60 cannot be moved smoothly. The same can be said for the case where various loads other than motorcycles are loaded and unloaded using a dolly.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be modified in various ways. For example, the number of pillar members, lubricants, diagonal members, etc. of the embodiment can be increased or decreased as appropriate according to the use and size of the transport container, and the shape of the load supporting member 19 can be changed to the type and shape of the mounted product. It can be changed as appropriate.

10: Lower back frame 11-14: Lubricant 15: Corrugated panel 16, 17: Outer connecting material 16a: Inner folding part 16b: Notch 18: Inner connecting material 19: Load support member 19a: Recesses 20, 30: Side frames 21 to 24: Pillar members 31 to 34: Pillar members 25, 35: Upper stiles 26, 36: Lower stiles
27a, 27b, 37a, 37b: Oblique member 30: Side frame 31-34: Pillar member 40: Corner metal fittings 41, 42: Engagement claw 46: Convex part 50: Ceiling beam 60: Motorcycle tire 70: Passing plate 100 : Assembled steel transport container

Claims (6)

It has a rectangular lower back frame and a pair of side frames that are detachably engaged with two opposite sides of the lower back frame, and the pair of side frames is one end or one of the respective side frames. A toe frame that is foldably connected to both ends of the side frame and is arranged above the side frame in a bent state in a non-contact manner except for two sides other than the two opposite sides and a bent portion. Assembled steel transport container characterized by having a part. The knob frame portion has a truss structure, and the truss structure has an end upper stile continuous with the upper stile of the side frame and an upper end portion connected to the tip end portion of the end upper stile and a lower end portion. The assembled steel transport container according to claim 1, which includes a diagonal member connected to the lower frame of the side frame. The prefabricated steel transport container according to claim 2, wherein the load support member is arranged on the lower back frame, and the end portion of the load support member is supported on the lower back frame below the diagonal member. .. The prefabricated steel transport container according to claim 2 or 3, wherein the tip end portion of the end upper frame of the toe frame portion engages with a pillar member of the side frame facing the end. The assembled steel transport container according to claim 4, wherein the pair of side frames have pillar members located at the corners of the lower back frame, and corner metal fittings are arranged above each pillar member. The lower back frame has a corrugated panel constituting the load supporting member and a plurality of sliding members made of hat-shaped steel welded to the lower surface of the corrugated panel, and a pair of sliding members located at both ends of the lower back frame. The assembled steel transport container according to any one of claims 1 to 5, wherein the concave-convex end portion of the corrugated panel is welded to both the inner and outer flange portions of the sliding material.

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