JP2018052507A - container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container that is cable of increasing rigidity of a side structure, even if the side structure is constituted by a thin metal plate.SOLUTION: A first side structure 20 includes a bottom frame 21, an upper frame 22, an outside column 23 and an inner column 24. Two diagonal members 25 are fixed at a center intersection portion 25c, and fixing portions 25a at both ends of the diagonal member 25 is fixed to an outer surface 23a of the outside column 23 and an outer surface 24a of the inner column 24. The diagonal member 25 includes the fixing portion 25a of a flat plate and an intermediate portion 25b folded into V-shaped. It is possible to increase rigidity of the first side structure 20 even if the diagonal member 25 is formed by a relatively thin metal plate.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a container formed of a metal material, and more particularly to a container having a side structure that is lightweight and has high strength.

  It is preferable that a container for storing and transporting various kinds of luggage is assembled immediately before use, disassembled after use, and discarded or reused.

  Patent Document 1 describes an invention related to a container that is assembled from container materials and can be disassembled after use.

  In this container, connecting members are attached to a plurality of sides of a plastic square pallet, and lower portions of the side structures covering the four side surfaces of the pallet are fixed to the pallet by the connecting members. Each side structure has an upper frame and a lower frame, and two side vertical frames and a central vertical frame. Two inclined frames are fixed between each side vertical frame and the central vertical frame.

  The connecting member is formed of a metal plate, and has an upward support surface, an upper holding plate portion folded from the upward support surface on the outer surface side of the side structure, and an upwardly rising upright from the upward support surface on the inner surface side. The plate portion is integrally formed. The lower frame of the side structure is formed of an L-shaped metal plate and has a horizontal plate portion and a vertical plate portion. By sandwiching the horizontal plate portion of the lower frame between the upward support surface of the connecting member and the upper holding plate portion, the vertical plate portion abuts against the inner surface of the upward plate portion of the connecting member, so that the side structure becomes a pallet. Built-in to stand up vertically.

  At the four corners of the upper part of the container, the side vertical frames of the adjacent side structures are combined, and the ends of the adjacent side structures are connected by the upper connection fitting.

JP 2013-159353 A

  In the side structure described in Patent Document 1, the upper end portion of the inclined frame is fixed to the upper frame, and the lower end portion of the inclined frame is fixed to the lower frame. However, when a force is applied to the entire container, such as when the container is lifted and transported by a forklift, and the distortion occurs, the upper frame and the lower frame try to move in opposite directions in parallel directions. As the upper frame and the lower frame move in opposite directions, a large bending stress or torsional stress acts on the inclined frame, making it difficult to form the inclined frame with a thin metal material.

  Therefore, the side structure of the container described in Patent Document 1 is not only an upper frame, a side vertical frame, and a central vertical frame, but also two inclined frames, which are metal channel members having a U-shaped cross section. The rigidity is enhanced by all the members constituting the side structure.

  However, in this side structure, since the inclined frame is made of a metal channel material, the entire mass of the side structure becomes heavy, and physical strength is required for assembly work and disassembly work. In addition, since the inclined frame is formed of a metal channel material, the thickness dimension of the side structure is increased, and a high arrangement space is required when the side structure is placed in an exploded state. Become.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a container that can make the side structure light and thin, and can suppress a decrease in strength of the side structure.

The present invention is provided with a bottom structure and a side structure rising from each of the four sides of the bottom structure, and at least a part of the side structure includes a lower sill and an upper scab, A container in which the lower stake and the upper stake are connected to each other, and the lower stake is connected to the bottom structure.
The side structure is provided with diagonal members arranged obliquely in a space surrounded by the lower and upper stiles and the two pillars,
The diagonal member has a fixed portion fixed to any of the lower and upper hoods and the support column, and an intermediate portion positioned between the fixed portions provided at both ends in the longitudinal direction. And
The diagonal member is formed of a metal plate, the fixing portion is a flat plate portion, and a bent portion extending in a longitudinal direction is formed in the intermediate portion.

  In the container of the present invention, it is preferable that the intermediate portion is formed with one bent portion extending in the longitudinal direction and the cross section is formed in a V shape.

  In the container of the present invention, it is preferable that the fixing portions provided at both ends of the diagonal member in the longitudinal direction are fixed to the support columns, respectively.

  In the container according to the present invention, the two diagonal members are arranged so as to intersect with each other in the space, and the fixing portions at both ends of the diagonal members are fixed to the support columns. It can be configured that the two are welded and fixed.

In the container of the present invention, the support column includes an outer surface extending in the longitudinal direction, two side surfaces that are bent from both sides of the outer surface and extending in the longitudinal direction, and an opening formed in a portion facing the outer surface and extending in the longitudinal direction. And
The fixing part of the diagonal member is fixed by welding to the outer surface.

  In the container of the present invention, since the diagonal material (streak) provided in the side structure is configured by a flat plate, the cost of the diagonal material is reduced, and the diagonal structure is configured to be thin. Can be made thin. Further, the diagonal member can be formed in a three-dimensional shape by forming a bent portion at an intermediate portion, thereby increasing the rigidity of the diagonal member.

  In addition, by fixing the fixing portions at both ends of the diagonal member to the support instead of the upper and lower stiles, it is possible to reduce the stress acting on the diagonal member when distortion is generated in the container. Therefore, even if the diagonal member is formed of a relatively thin metal plate, the strength of the side structure can be increased.

The perspective view which shows the whole structure of the container of embodiment of this invention, partly disassembling, The bottom structure is shown, (A) is a plan view, (B) is a front view, (C) is a right side view, The 1st side part structure is shown, (A) is a front view seen from the inside of a container, (B) is a top view, It shows a second side structure, (A) is a front view seen from the inside of the container, (B) is a plan view, (C) is a partial front view in which the lower part is enlarged, (A) is a partially exploded perspective view showing a bottom connection fitting provided on the bottom structure and a lower stile of the first side structure, (B) is a cross-sectional view of a column of the first side structure, (A) (B) shows the process of connecting the lower stile of the first side structure to the bottom connection fitting, and is a sectional view taken along line VI-VI in FIG. A partial exploded perspective view showing a second bottom connection fitting provided on the bottom structure and a lower end of the second side structure; The partial perspective view which shows the state with which the 2nd bottom part connection metal fitting provided in the bottom part structure, and the lower end part of the 2nd side part structure were connected, A partially exploded perspective view showing the upper stile of the first side structure and the upper stile of the second side structure in the upper corner of the container; In the upper corner of the container, a partial perspective view showing a state where the upper stile of the first side structure and the upper stile of the second side structure are connected, In the upper corner of the container, the upper stile of the first side structure and the upper stile of the second side structure are connected, and the state where the upper connection fitting is attached is shown by the line XI-XI in FIG. Cut cross-sectional view, The perspective view which looked at the half of the 1st side part structure from the outside of a container, (A) is a front view of the diagonal material viewed from the inside of the container, (B) is a bottom view thereof, (C) is a right side view,

  FIG. 1 shows the overall structure of the container 1. The container 1 is entirely made of a metal material, that is, an iron material.

  The container 1 has a bottom structure 10. The bottom structure 10 has a rectangular shape, two first sides 10a having long sides facing each other extend in the Y direction, and two second sides 10b having short sides facing each other extend in the X direction. .

  The first side structure 20 is vertically attached to each of the two first side portions 10a of the bottom structure 10, and the second side portion is attached to each of the two second side portions 10b. The structure 30 is attached vertically. The upper stiles 22 of the two opposing first side structure bodies 20 are connected by one or a plurality of top beams 60.

  The first side structure 20 is generally referred to as a toe panel, and the second side structure 30 is referred to as a side panel. In contrast to the embodiment, the hook panel attached to the first side portion 10a may be the second side structure, and the side panel attached to the second side portion 10b may be the first side structure.

The bottom structure 10 is shown in FIG.
As shown in FIGS. 1 and 2, the bottom structure 10 is provided with a plurality of lubricants 13 formed of a metal plate. The plurality of lubricants 13 are arranged to extend in parallel to each other in the X direction at intervals in the Y direction. As shown in FIG. 5 (A), the lubricant 13 is formed in a U shape and is directed downward, and flanges 13b and 13b are bent in the Y direction from the upper ends of the legs 13a. And have. In the bottom structure 10, a corrugated plate 12 formed of a metal plate in an uneven shape is laid on a plurality of sliding materials 13, and the corrugated bottom portion of the corrugated plate 12 and the flange portions 13 b of the respective sliding materials 13 are welded. Is fixed.

  As shown in FIG. 2, the side support members 11 are fixed to the first side portions 10 a on both sides in the X direction of the bottom structure 10. As shown in FIG. 5, the side support member 11 is bent by a metal plate, and includes a bottom portion 11c, an inner standing portion 11a that rises from the inside of the bottom portion 11c, and an outer standing portion 11b that rises from the outside of the bottom portion 11c. And have. The bottom part 11c of the side part support material 11 is installed on the flange parts 13b and 13b of each sliding material 13, and is being fixed by welding.

FIGS. 3A and 3B and FIG. 12 show a first side structure (a toe panel) 20. FIG. 3A is a front view of the entire first side structure 20 as viewed from the inside of the container 1, and FIG. 12 shows almost half of the first side structure 20 from the outside of the container 1. FIG.
In the first side structure 20, a lower sill 21 and an upper sill 22 extend in the horizontal direction (Y direction) and face each other in parallel. The lower sill 21 and the upper sill 22 are connected by a pair of outer struts 23 and a pair of inner struts 24. The pair of outer support columns 23 extend in parallel to each other in the vertical direction (Z direction) at both ends in the Y direction. The pair of inner struts 24 are located on the inner side of the outer struts 23 and extend in the Z direction in parallel with each other.

  The upper stile 22 is fixed to the upper end portion 23m of the pair of outer support columns 23 and the upper end portion 24m of the pair of inner support columns 24 by welding. A lower sill 21 is welded and fixed to the lower end 23n of the pair of outer supports 23 and the lower end 24n of the pair of inner supports 24.

  In the first side structure 20, two diagonal members (struts) 25 are provided in a rectangular space surrounded by the lower sill 21, the upper sill 22, the outer strut 23, and the inner strut 24. As shown in FIG. 12, the fixing portions 25 a at both ends of the diagonal member 25 are welded and fixed to the outer support column 23 and the inner support column 24 instead of the lower support 21 or the upper support 22. In the square space, two diagonal members 25 are arranged so as to intersect with each other and welded to each other at an intersecting portion 25c.

FIG. 4 shows a second side structure (side panel) 30.
The second side structure 30 has an upper sill 31 extending in the X direction and two inclined columns 32. Each inclined column 32 is fixed by welding its upper end 32m to the upper sill 31 at both ends in the X direction. As shown in FIGS. 4A and 4C, the two inclined support columns 32 are inclined so that the lower end portions 32n approach each other, and the lower end portions 32n of the two inclined support columns 32 are supported metal plates. 33 is fixed by welding. A downward support piece 33 a is integrally formed on the support metal plate 33.

FIG. 5A shows the lower sill 21 of the first side structure 20, the outer column 23, a part of the diagonal member 25, and the first side 10 a of the bottom structure 10. FIG. 5 (A) partially shows the V arrow portion shown in FIG. 1, and FIG. 6 shows a VI-VI cross section of FIG. 5 (A).
As shown in FIG. 5 (A), the outer column 23 constituting the first side structure 20 has an outer surface 23a and a pair of side surfaces 23b bent from both sides of the outer surface 23a. This is a so-called channel material in which an opening 23c extending vertically is formed in an opposing portion. The outer support column 23 is formed of a metal plate thinner than a conventional container support column, and is formed of an iron plate (steel plate) having a thickness of 1 mm or less, preferably 0.7 mm. As shown in the cross-sectional view of FIG. 5 (B), the outer support column 23 is formed of a thin iron plate, and is thus reinforced by providing folded portions (lip portions) 23d at both edges of the opening 23c. .

  The cross-sectional structure of the inner column 24 provided in the first side structure 20 is the same as that of the outer column 23 shown in FIG. As shown in FIG. 12, the inner column 24 is also provided with an outer surface 24a, two side surfaces 24b, and an opening, and folded portions are formed at both edges of the opening. In FIG. 12, the opening and the folded portion do not appear.

  As shown in FIGS. 5A and 12, the lower sill 21 of the first side structure 20 is formed of a metal plate having an L-shaped cross section. The lower stile 21 is also formed of an iron plate (steel plate) having a thickness of 1 mm or less, preferably 0.7 mm. The lower sill 21 has a lower plate portion 21a and a side plate portion 21b that is bent at a right angle from the lower plate portion 21a on the outer surface side of the first side structure 20. At both ends in the Y direction of the lower stile 21, slits 21 c are respectively opened slightly inside the connecting portion with the outer support column 23.

  FIG. 13 shows the shape of the diagonal member 25. The diagonal member 25 is formed of an iron plate (steel plate) having a thickness of 1 mm or less, preferably 0.7 mm. The diagonal member 25 is formed of a long flat plate. The hypotenuse 25 has a fixing portion 25a at both ends in the longitudinal direction and an intermediate portion 25b between the fixing portions 25a and 25a at both ends.

  As shown in FIGS. 13A and 13B, the fixing portion 25a is a flat plate portion, and is fixed to the outer surface 23a of the outer column 23 and the outer surface 24a of the inner column 24 by being fixed to the first inner side. It has an outer surface 26 b that faces the outside of the partial structure 20. In the intermediate portion 25b, a single bent portion 27 extending in the longitudinal direction is formed at the center in the width direction of the metal plate. As shown in FIG. 13C, the intermediate portion 25b has a V-shaped cross section. It is bent. In the cross-sectional shape of the intermediate portion 25b, the bent portion 27 may be sharply bent so as to have a corner portion, or the bent portion 27 may be bent smoothly so as to have a curved shape.

  As shown in FIGS. 13B and 13C, in the intermediate portion 25 b, both side edges 28, 28 of the metal plate are bent toward the inside of the first side structure 20 by the bent portion 27. Both side edge portions 28 and 28 are directed inward from the fixed inner surface 26a of the fixed portion 25b. As a result, in the intermediate portion 25b, the bent portion 27 does not protrude outward from the outer surface 26b of the fixed portion 25a, and both side edges 28 are directed inward from the fixed inner surface 26a of the fixed portion 25a. Yes.

  As shown in FIG. 12, the fixed portions 25 a at both ends of the diagonal member 25 are fixed by welding with the fixed inner surfaces 26 a contacting the outer surfaces 23 a of the outer columns 23 and the outer surfaces 24 a of the inner columns 24. ing. At this time, on the outer surface side of the first side structure 20, the intermediate portion 25 b does not protrude greatly from the outer surface 26 b of the fixed portion 25, and both side edges 28 of the intermediate portion 25 b Between the inner struts 24, the inner struts 23 enter into the inner sides of the outer surfaces 23 a and 24 a of the respective struts 23 and 24.

  At the intersecting portion 25c between the diagonal members 25, two intermediate portions 25b formed in a V shape are brought into close contact with each other so as to be crushed and welded and fixed.

  Since the intermediate portion 25b does not protrude greatly from the outer surfaces 23a, 24a of the respective columns 23, 24, the first side structure 20 can be configured to be thin. Further, both side edge portions 28 of the metal plate are directed in a space sandwiched between the outer support column 23 and the inner support column 24 in the intermediate portion 25 b, and both side edge portions 28 are directed to the inside of the container 1. Since the metal edges of the side edges 28 are within the thickness range of the first side structure 20 and are not directed to the outside of the container 1, it is possible to prevent the metal edges from hitting an operator.

  As shown in FIG. 5A, in the first side portion 10a of the bottom structure 10, a first bottom portion connecting portion is provided between the inner upright portion 11a and the outer upright portion 11b of the side support member 11. The bottom connection fitting 40 is inserted, and the first bottom connection fitting 40 and the side support member 11 are welded and fixed. The first bottom connection fittings 40 are welded and fixed one by one on both sides in the Y direction on the first side portion 10a of the bottom structure 10. Since the 1st bottom part connection metal fitting 40 is being fixed to each of the two 1st edge parts 10a, it is provided in a total of four places.

  The first bottom connection fitting 40 is formed of a metal plate thicker than the lower sill 21 of the first side structure 20, and is formed of an iron plate (steel plate) of 1 mm or more and preferably 1.2 mm.

  As shown in FIG. 5A, the first bottom connecting bracket 40 includes a bottom plate portion 41, a support plate portion 42 that rises vertically from the bottom plate portion 41 outside the bottom structure 10, and an upper portion of the support plate portion 42. And a support claw portion 43 bent at a right angle toward the inside. The first bottom connection fitting 40 is integrally formed with a rising piece 44 bent vertically from the bottom plate portion 41 on the inner side, and a pair of restricting protrusions 44 a are formed integrally with the rising piece 44. The restricting protrusion 44 a protrudes above the upper surface of the corrugated plate 12 of the bottom structure 10.

  7 and 8 show a lower portion of the second side structure 30 and a central portion of the second side portion 10b of the bottom structure 10. FIG.

  7 and 8 show the inclined column 32 of the second side structure 30. FIG. The inclined column 32 is a channel material having an outer surface 32a, two side surfaces 32b and 32b, and an opening 32c facing the outer surface 32a. Like the outer column 23 and the inner column 24 constituting the first side structure 20, the inclined column 32 is formed of a metal plate thinner than the column of the conventional container, and preferably has a thickness of 1 mm or less. Is formed of an iron plate (steel plate) having a thickness of 0.7 mm.

  The supporting metal plate 33 provided at the lower part of the second side structure 30 is formed of an iron plate (steel plate) having a thickness of about 1 mm.

  At the center portion in the X direction of the second side portion 10b of the bottom structure 10, a support plate 14 is interposed between the flange portion 13b of the lubricant 13 and the corrugated plate 12, and the support plate 14 is welded to the flange portion 13b. Has been fixed. On the support plate 14, the 2nd bottom part connection metal fitting 45 which is a 2nd bottom part connection part is welded and fixed.

  The second bottom connection fitting 45 is formed of a metal plate thicker than the metal material constituting the inclined support column 32 of the second side structure 30, and is formed of an iron plate (steel plate) of 1 mm or more, preferably 1.2 mm. Has been. The support plate 14 is also formed of a metal plate having the same thickness.

  As shown in FIG. 7, the second bottom connecting bracket 45 includes a bottom plate portion 46, a support plate portion 47 that rises vertically from the bottom plate portion 46 outside the bottom structure 10, and a vertical bend from the bottom plate portion 46 inside. The rising piece 49 is provided. A slit 48 opens at the boundary between the bottom plate portion 46 and the support plate portion 47.

  9 and 10 show a connection structure between the first side structure 20 and the second side structure 30 at the upper corner of the container 1. FIG. 11 shows a cross-sectional view of FIG. 10 taken along XI-XI. 9 to 11 show a connection structure at an upper corner portion shown by an arrow IX in FIG.

  In the connection structure of the first side structure 20 and the second side structure 30, the opening 23 c of the outer column 23 of the first side structure 20 is directed to the second side structure 30. .

  9 and 10 show the Y-direction end of the upper stile 22 of the first side structure 20. The upper sill 22 is a metal plate thicker than the lower sill 21 and is formed of an iron plate (steel plate) having a thickness of 1 mm. The upper stile 22 includes an upper plate portion 22a, an outer plate portion 22b extending downward from the upper plate portion 22a on the outer surface side of the first side structure 20, and an inner plate portion extending downward from the upper plate portion 22a on the inner surface side. 22c.

  At both ends of the upper stile 22 in the Y direction, a notch portion 22d is formed in the inner plate portion 22c. The opening width in the Y direction of the notch 22 d is slightly wider than the width dimension W of the upper sill 31 of the second side structure 30. As shown in FIGS. 9 and 11, in the first side structure 20, between the upper end portion 23 m of the outer column 23 and the lower surface of the upper plate portion 22 a of the upper sill 22 in the notch portion 22 d. A gap H is formed. The height dimension of the gap H is formed wider than the thickness dimension of the metal plate constituting the upper sill 31 of the second side structure 30.

  The upper sill 31 of the second side structure 30 includes an upper plate 31a, an outer plate 31b extending downward from the upper plate 31a on the outer surface side of the second side structure 30, and an upper plate on the inner surface side. And an inner plate portion 31c extending downward from the portion 31a.

  At both ends in the X direction of the second side structure 30, the upper end 32 m of the inclined column 32 is separated from the end in the X direction of the upper hook 31 by a distance L.

  As shown in FIGS. 9 and 10, a slit 22e is formed in the upper plate portion 22a of the upper sill 22 of the first side structure 20, and the upper plate 31a of the upper sill 31 of the second side structure 30 is formed. A slit 31e is formed. As shown in FIG. 3B, the slits 22e are formed at both ends of the upper sill 22 in the Y direction. As shown in FIG. 4B, the slits 31e are formed at both ends of the upper sill 31 in the X direction.

  As shown in FIG. 10, an upper connection fitting 50 formed of an iron plate (steel plate) is attached to the connection structure portion between the first side structure 20 and the second side structure 30. The upper coupling fitting 50 has a substantially triangular cover plate portion 56. An outer support plate 51 and an insertion piece 53 that are bent downward are provided on one oblique side of the cover plate portion 56, and an outer support plate 52 that is bent downward is inserted on the other oblique side of the cover plate portion 56. A piece 54 is provided. Further, the interposition piece 55 is bent downward on the opposite side of the cover plate portion 56.

Next, a method for assembling the container 1 will be described.
The container 1 before assembly and the container 1 after being used and unpacked in transportation are overlapped with the bottom structure 10, the first side structure 20, and the second side structure 30 separated. Stored and transported. As shown in FIG. 12, in the first side structure 20, both side edges 28 of the metal plate are directed inward from the outer surfaces 23 a and 24 a of the respective columns 23 and 24 at the intermediate portion 25 b of the diagonal member 25. It has been. Thus, the first side structure 20 becomes thin and does not bulk when stacked and stored and transported.

  As shown in FIG. 5A, a pair of restricting protrusions 44 a are integrally formed on the rising piece 44 of the first bottom connecting bracket 40. The restricting protrusion 44 a protrudes upward from the upper surface of the corrugated plate 12. When a plurality of disassembled bottom structure bodies 10 are stacked one above the other, the restricting protrusions 44a are inserted into holes formed in the sliding material 13 on the lower surface of the bottom structure body 10 positioned thereon, or Hang on the side. Thereby, it can control that the bottom structure 10 piled up and down shifts in position at the time of transportation.

  The first side structure 20 is attached to the two first sides 10a of the bottom structure 10, and the second side structure 30 is attached to the two second sides 10b. Either the first side structure 20 or the second side structure 30 may be attached first, but in the following embodiment, the second side structure 30 is attached first.

  As shown in FIG. 7, the lower end portions 32 n and 32 n of the inclined support columns 32 and 32 of the second side structure 30 are placed on the second bottom connection fitting 45 fixed to the second side portion 10 b of the bottom structure 10. Install. By attaching the lower end portions 32n, 32n of the inclined support columns 32, 32 into the support plate portion 47 and the rising piece 49 of the second bottom connecting bracket 45, the second side structure 30 is attached so as to be self-supporting. Can do. Further, the support piece 33a is inserted into the slit 48 of the second bottom connection fitting 45 from the inside, and the support piece 33a is folded back on the outer surface of the support plate portion 47 as shown in FIG. The lower part and the second bottom connecting bracket 45 can be firmly connected.

  The first side structure 20 is mounted on the first bottom connection fittings 40 provided at both ends in the Y direction on the first side 10 a of the bottom structure 10.

  As shown in FIG. 6A, the first side structure 20 is inclined toward the outside of the bottom structure 10, and the first bottom portion is formed in the slit 21c formed in the side plate portion 21b of the lower sill 21. The support claw portion 43 formed on the connecting metal fitting 40 is inserted. Thereafter, the first side structure 20 is rotated in the α direction with the lower sill 21 side as a fulcrum, so that the first side structure 20 is in a vertical posture as shown in FIG.

  In FIG. 6B, the lower plate portion 21a of the lower sill 21 is installed on the bottom plate portion 41 of the first bottom connection fitting 40 in a state where the support claw portion 43 is inserted into the slit 21c. The side plate portion 21 b is installed on the inner surface of the support plate portion 42 of the first bottom connection fitting 40. As a result, the first side structure 20 is installed almost independently on the first side 10 a of the bottom structure 10.

  The second side structure 30 is attached to the second side portion 10b of the bottom structure 10 in a vertical posture, and then the first side structure 20 is supported by the first bottom connection fitting 40, thereby the first side structure. In the process of rotating the body 20 from the collapsed posture shown in FIG. 6 (A) to the vertical posture shown in FIG. 6 (B), the first side structure 20 and the second side are formed at the upper corner of the container 1. The partial structures 30 can be connected.

  In the process of rotating the first side structure 20 in the α direction toward the vertical posture, the end of the upper sill 31 of the second side structure 30 shown in FIG. It is inserted into a notch 22 d formed in the upper stile 22. Then, as shown in FIGS. 10 and 11, the upper plate portion 31 a of the upper sill 31 of the second side structure 30 is connected to the upper end 23 m of the outer support 23 of the first side structure 20 and the upper sill 22. It inserts in the clearance gap H with the upper board part 22a. Further, the inner plate portion 31c of the upper sill 31 of the second side structure 30 is inserted into the opening 23c of the outer support column 23 of the first side structure 20, and the outer slab 31b of the upper sill 31 is connected to the outer side. Installed on the outside of the side surface 23 b of the column 23.

  In this state, as shown in FIGS. 10 and 11, the end portions of the first side structure 20 and the second side structure 30 are greatly displaced in the X direction, the Y direction, and the Z direction. Can be combined without doing.

  Thereafter, as shown in FIGS. 10 and 11, the upper connection fitting 50 is installed. The upper connection fitting 50 inserts the insertion piece 53 into the slit 22 e of the upper sill 22 and the insertion piece 54 into the slit 31 e of the upper sill 31. Further, the outer support plate 51 of the upper connection fitting 50 is installed outside the outer plate portion 22 b of the upper sill 22, and the outer support plate 52 is installed outside the outer plate portion 31 b of the upper sill 31. Then, the interposition piece 55 is interposed between the inner plate portion 22 c of the upper sill 22 and the inner plate portion 31 c of the upper sill 31.

  Further, the upper stiles 22 of the two opposing first side structure bodies 20 are connected by one or a plurality of ceiling beams 60.

  When unpacking the container 1 after use, the top beam 60 and the upper connection fitting 50 are removed, the connection between the first side structure 20 and the second side structure 30 is released, and the first side part The structure 20 and the second side structure 30 are removed from the bottom structure 10.

  In the container 1 of the above embodiment, each member has a maximum thickness of 1.2 mm, and many members are made of iron plates with a thickness of 0.7 mm. Therefore, the overall weight is light, and the material cost is low. It can be manufactured at low cost.

  The overall rigidity of the container 1 formed of a relatively thin metal plate is slightly lowered. For example, when the lower surface of the bottom structure 10 is carried on a forklift, the container 1 is relatively distorted. ing. However, the connection strength between the first side structure 20 and the second side structure 30 shown in FIGS. 9 to 11 is high, and the bottom structure shown in FIGS. 5 and 6 is used. 10 and the first side structure 20 have a high connection strength, and the bottom structure 10 and the second side structure 30 shown in FIGS. 7 and 8 have a high connection strength. For this reason, defects such as disconnection of these connecting portions are less likely to occur.

  9 to 11, in the connecting portion between the first side structure 20 and the second side structure 30, the upper sill 31 of the second side structure 30 is connected to the outer column of the first side structure 20. 23 is inserted into the gap H between the upper end portion 23m of the upper sill 22 and the upper sill 22 and, further, the inner plate portion 31c of the upper sill 31 is inserted into the opening 23c of the outer column 23 of the first side structure 20, The outer plate portion 31 b of the upper sill 31 is installed outside the side surface 23 b of the outer column 23.

  Therefore, the first side structure 20 and the second side structure 30 are not relatively displaced in the Z direction, and the strength of the connection portion is maintained high by merely fitting the upper connection fitting 50. be able to.

  5 and 6, the lower sill 21 of the first side structure 20 is formed of a thin iron plate having a thickness of about 0.7 mm at the connecting portion between the bottom structure 10 and the first side structure 20. However, the support claw portion 43 of the first bottom connection fitting 40 formed of a thicker iron plate is inserted into the slit 21 c of the lower sill 21. Therefore, even if the container 1 is distorted, the connecting portion between the bottom structure 10 and the first side structure 20 does not come off.

  Further, the second side structure 30 is composed of the minimum number of parts including the upper sill 31 and the two inclined columns 32, and can be manufactured at low cost. However, the upper sill 31 has the structure shown in FIGS. 9 to 11 and is firmly connected to the upper sill 22 of the first side structure 20, and the second side structure as shown in FIGS. 30 is firmly connected to the second bottom connecting bracket 45 by a support piece 33a. Therefore, even if the container 1 is distorted, the connecting portion between the bottom structure 10 and the second side structure 30 does not come off.

  As shown in FIGS. 3 and 12, the first side structure 20 is provided with two diagonal members 25. The diagonal members 25 are fixed to each other at an intersecting portion 25c. Fixing portions 25 a at both ends are fixed to the outer support column 23 and the inner support column 24 instead of the lower support 21 and the upper support 22.

  As the container 1 is lifted by a forklift or the like, the container 1 is distorted and, as shown in FIG. 12, forces F opposite to each other in the Y direction are applied to the lower and upper cavities 21 and 22. Assume that. When both ends of the diagonal member (stitch) are fixed to the lower sill 21 and the upper sill 22 as in the prior art, the diagonal members are caused by forces F acting in opposite directions on the lower sill 21 and the upper stile 22. In particular, a large stress is easily generated, and in particular, a torsional stress acting on the diagonal member is increased. Therefore, it is necessary to form the diagonal material with a material having high torsional rigidity, such as a metal channel material having a U-shaped cross section.

  However, when the fixing portions 25a at both ends of the diagonal member 25 are fixed to the outer support column 23 and the inner support column 24 as in the above-described embodiment, forces F in opposite directions are applied to the lower and upper sills 21 and 22, respectively. Even if it acts, the stress acting on the diagonal member 25 is mainly tensile stress and compressive stress in the longitudinal direction. Therefore, even if the diagonal member 25 has a structure in which the cross section of the intermediate portion 25b is bent into a V shape, it can sufficiently secure the strength and can suppress the occurrence of distortion of the first side structure 20. . However, in the present invention, the fixing portion 25 a of the diagonal member 25 may be fixed to the lower sill 21 and the upper sill 22.

  From the above, the container 1 according to the embodiment is lightweight and can be manufactured at a low cost, and the strength of the connecting portion of each member is high, so that defects such as disconnection of the connecting portion during transportation are less likely to occur.

DESCRIPTION OF SYMBOLS 1 Container 10 Bottom structure 10a 1st edge part 10b 2nd edge part 12 Corrugated sheet 13 Lubricant 20 1st side part structure 21 Lower stake 22 Upper stake 23 Outer support | pillar 24 Inner support | pillar 25 Slanting material 25a Fixed part 25b Middle part 26 Bending part 28 Both sides edge part
30 Second side structure 31 Upper stile 33 Support metal plate 33a Support piece 40 First bottom connection bracket 45 Second bottom connection bracket 50 Upper connection bracket

Claims (5)

A bottom structure and a side structure rising from each of the four sides of the bottom structure, and at least a part of the side structure includes a lower sill and an upper scab, and the lower scab A container having at least two struts connecting upper stiles, wherein the lower stile is connected to the bottom structure,
The side structure is provided with diagonal members arranged obliquely in a space surrounded by the lower and upper stiles and the two pillars,
The diagonal member has a fixed portion fixed to any of the lower and upper hoods and the support column, and an intermediate portion positioned between the fixed portions provided at both ends in the longitudinal direction. And
The diagonal member is formed of a metal plate, the fixed portion is a flat plate portion, and a bent portion extending in a longitudinal direction is formed in the intermediate portion.   The container according to claim 1, wherein the intermediate portion is formed with one bent portion extending in a longitudinal direction and having a V-shaped cross section.   The container according to claim 1 or 2, wherein each of the fixing portions provided at both ends in the longitudinal direction of the diagonal member is fixed to the support column. Two diagonal members are arranged to intersect in the space,
The container according to claim 3, wherein the fixing portions at both ends of each diagonal member are fixed to the support column, and the diagonal members are welded and fixed at an intersection. The support column has an outer surface extending in the longitudinal direction, two side surfaces bent from both sides of the outer surface and extending in the longitudinal direction, and an opening formed in a portion facing the outer surface and extending in the longitudinal direction. ,
The container according to claim 3 or 4, wherein the fixing portion of the diagonal member is fixed by welding to the outer surface.

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