JP2018052508A - Container and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container and a method for manufacturing the same in which a beam connecting upper frames of opposing side structures is formed by a relatively thin metal plate and the side structures are capable to firmly connect each other at on the beam.SOLUTION: A beam 60 includes a reinforcement portion 61 having a folding portion 63 and a flat plate 65 extending from the reinforcement portion 61, and a first flat plate 66 and a second flat plate 67 folding at a folding portion 68 from the first flat plate 66 are formed in the flat plate 65. The flat plate 65 is folded downward and an upper frame 22 of a side structure is deformed inward so that the second flat plate 67 is inserted into a slit 22f. Then the upper frame 22 is returned and the reinforcement portion 61 is pushed downward to restore bending of the flat plate 65 so that the beam 60 and the upper frame 22 can be connected without easily uncoupling.SELECTED DRAWING: Figure 15

Description

  The present invention relates to a container formed of a metal material, and more particularly to a container having a ceiling beam that connects upper side frames of opposing side structures so as not to be separated from each other, and a method for manufacturing the container.

  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

  A plurality of containers described in Patent Document 1 are stacked up and down when the contents are packed and stored in a warehouse, or when shipping. At this time, the mass of the container stacked on the upper side acts on the lower container. However, since the side structure of the container is a structure in which steel frames are combined, the lower container is the mass of the upper container. The upper frames of the two opposing side structures are easily deformed away from each other, so that the upper container may fall between the side structures of the lower container.

  Therefore, in this type of container, a top beam that connects the upper frames of two opposing side structures is used. Conventional ceiling beams have a relatively thick metal plate that is bent into a saddle shape on both sides or a relatively thick metal plate on both ends of a relatively rigid aggregate such as a metal channel material. It is a structure in which the bent one is fixed. The beam member is assembled by hooking a rod-shaped bar or plate on the outside of the upper frame while deforming the upper frames of the opposing side structures so as to approach each other.

  However, if the ceiling beam is made of a rigid bar or aggregate, the mass of the ceiling beam itself will increase, requiring physical strength to handle the ceiling beam during assembly and disassembly, and transporting the container in a disassembled state. It becomes heavy when you do.

  For example, if the ceiling beam can be formed of a thin iron plate having a thickness of 1 mm or less, the weight can be reduced and the manufacturing cost can be reduced. However, a thin metal plate is formed with hook-shaped hooks at both ends as in the past. In such a case, it is impossible to sufficiently secure the connection strength between the both ends of the top beam and the upper frame of the side structure.

  The present invention solves the above-described conventional problems, and uses a ceiling beam that is relatively light and can be manufactured at a low cost. It is an object of the present invention to provide a container that can be connected with each other and a manufacturing method thereof.

The present invention relates to a container provided with a bottom structure, a side structure that rises from four sides of the bottom structure, and a top beam that connects the upper tops of the opposing side structures. ,
The ceiling beam is formed of a metal plate, and includes a reinforcing portion that extends in a longitudinal direction that is a direction in which the side structure faces each other, and a flat plate portion that is provided integrally or separately at both ends of the reinforcing portion. The reinforcing portion is bent at a bending portion extending in a longitudinal direction, and the flat plate portion is folded at a first plate portion extending from an end portion of the reinforcing portion and a tip portion of the first plate portion, and A second plate portion extending toward the reinforcing portion,
The upper plate and the both ends of the top beam are connected so that the first plate is installed on the upper plate of the upper plate and the second plate enters the lower side of the upper plate. Has been
An opening distance (W1) between the end portion of the reinforcing portion and the tip portion of the second plate portion is narrower than a width dimension (W0) of the upper stile, and from the end portion of the reinforcing portion to the first plate portion. A distance (W2) from the second plate portion to the turn-up portion is larger than a width dimension (W0) of the upper hook.

In the container of the present invention, the upper scab has the upper plate portion and an outer plate portion that is bent downward from the upper plate portion outside the side structure.
A slit may be formed in the outer plate part, and the second plate part may be inserted into the slit from the outside of the outer plate part.

Next, the present invention is provided with a bottom structure, a side structure that rises from four sides of the bottom structure, and a top beam that connects the upper corners of the opposing side structures. In the manufacturing method of
Using the top beam formed of a metal plate and having a reinforcing portion extending in a longitudinal direction that is a direction in which the side structure faces and a flat plate portion extending from both ends of the reinforcing portion,
The reinforcing portion is bent at a bending portion extending in a longitudinal direction, and the flat plate portion is folded back at a first plate portion extending from an end portion of the reinforcing portion and a front portion of the first plate portion to be formed into the reinforcing portion. An opening distance (W1) between the end portion of the reinforcing portion and the tip end portion of the second plate portion is narrower than the width dimension (W0) of the upper hook, The distance (W2) from the end portion of the reinforcing portion to the folded portion between the first plate portion and the second plate portion is greater than the width dimension (W0) of the upper stile,
The second plate portion is inserted into the lower side of the upper hood, the first plate portion is installed on the upper plate portion, and the reinforcing portion is interposed between the two opposing upper hoods. It is a feature.

The container manufacturing method of the present invention comprises:
(1) At a boundary portion between the reinforcing portion and the first plate portion of the top beam, a flat plate portion is bent in a downward direction where the second plate portion exists, and the second plate portion is placed under the upper hood. Get into the side,
(2) After that, the bending of the boundary portion is restored to the original state, the first plate portion is installed on the upper plate portion, and the reinforcing portion is placed between the two upper stiles facing each other. It can comprise as what interposes.

The container manufacturing method of the present invention comprises:
First, the top beam is set in an inclined posture that tilts toward the container side from the vertical direction, and the second plate portion provided at the first end of the top beam enters the lower side of the upper hood,
Next, it is possible to perform assembly in the steps (1) and (2) at the second end of the ceiling beam.

In the container manufacturing method of the present invention, the upper hook has the upper plate portion and an outer plate portion that is bent downward from the upper plate portion outside the side structure. A slit is formed,
The second plate part can be inserted into the slit from the outside of the outer plate part.

  In the container of the present invention, the top beam is formed of a reinforcing portion and a first plate portion and a second plate portion, which are flat plate portions, and an opening distance (W1) between the end portion of the reinforcing portion and the tip portion of the second plate portion. ) Is made narrower than the width dimension (W0) of the upper stile, and the distance (W2) from the end of the reinforcing part to the folded portion between the first plate part and the second plate part is defined as the width dimension (W0) of the stile. ) Is larger than. Therefore, even if the top beam is formed of a relatively thin metal plate, after the first plate portion and the second plate portion are connected to the upper sill, the top beam does not easily come off from the upper sill.

  In the container manufacturing method of the present invention, the top beam is bent at the boundary portion between the reinforcing portion and the first plate portion, and then the second plate portion enters the lower side of the upper plate portion of the upper stake, and then the bending is performed. By eliminating the above, the end of the top beam and the upper stile can be connected with a simple operation.

  According to the present invention, since the ceiling beam can be formed of a relatively thin metal plate, the ceiling beam can be reduced in weight, can be easily manufactured, and the manufacturing cost can be reduced.

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, (A) is a side view of the ceiling beam, (B) is a right end view of the ceiling beam, The fragmentary perspective view which shows the connection part of the upper stile and a top beam of a 1st side part structure body, (A) (B) is sectional drawing which shows the process of connecting the 1st edge part of a top beam to one upper stile, (A) (B) is sectional drawing which shows the process of connecting the 2nd edge part of a top beam to the other upper stile, The perspective view which shows the modification of a top beam,

  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.

FIG. 3 shows a first side structure (a toe panel) 20.
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, a diagonal member (strut) 25 is provided between the outer support column 23 and the inner support column 24. Between the outer support column 23 and the inner support column 24, the two diagonal members 25 are arranged so as to intersect with each other, and are welded to each other at the intersecting portion. Both end portions 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.

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 stile 21 of the first side structure 20 and the first side portion 10 a of the bottom structure 10. FIG. 5 (A) partially shows the V arrow portion shown in FIG. FIG. 6 shows a VI-VI cross section of FIG.

  As shown in FIG. 5 (A), the outer column 23 constituting the first side structure 20 has an outer surface 23a and a side surface 23b bent from the outer surface 23a. This is a so-called channel material in which an opening 23c is formed. 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. 5A, 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. As shown in FIG. 3, slits 21 c are opened at both ends in the Y direction of the lower stile 21 slightly inside the connecting portion with the outer support column 23.

  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.

  FIG. 12 shows the ceiling beam 60. The top beam 60 is formed of a thin metal plate, and is formed of an iron plate (steel plate) having a thickness of 1 mm or less, preferably 0.7 mm. In the ceiling beam 60, the X direction, which is the direction in which the first side structure 20 faces, is the longitudinal direction. The top beam 60 has a reinforcing portion 61 extending in the longitudinal direction and a flat plate portion 65 extending from both end portions 61a of the reinforcing portion 61 in the longitudinal direction.

  The reinforcing portion 61 is formed with at least one (one) bent portion extending in the longitudinal direction. As shown in FIGS. 12B and 13, in the embodiment, the reinforcing portion 61 is formed with two (two) bent portions 63 and 63 extending in parallel to the longitudinal direction. The reinforcing portion 61 has a planar upper beam portion 62 sandwiched between the bent portion 63 and the bent portion 63, and a pair of side beam portions 64 bent downward from both sides of the upper beam portion 62. doing.

  The flat plate portion 65 is a connecting portion, and is folded back from the first plate portion 66 via the flat plate-like first plate portion 66 extending from the upper beam portion 62 of the reinforcing portion 61 and the turn-back portion 68, and the tip portion 67a. Has a second plate portion 67 directed to the reinforcing portion 61. The opening angle β of the first plate portion 66 and the second plate portion 67 is preferably 20 degrees or more and 45 degrees or less, and in the embodiment, the opening angle β is 30 degrees. Further, in the end portion 61a of the reinforcing portion 61, the angle α formed by the end portion 64a of the side beam portion 64 and the first plate portion 66 is 90 degrees.

  As shown in FIGS. 13 to 15, in the upper stile 22 of the first side structure 20, a slit 22f is formed at the boundary between the upper plate portion 22a and the outer plate portion 22b above the outer plate portion 22b. ing. The opening width of the slit 22f in the Y direction is slightly wider than the width dimension of the second plate portion 67 of the ceiling beam 60 in the Y direction.

  As shown in FIGS. 13 and 14, when the width dimension in the X direction of the upper sill 22 of the first side structure 20 is W0, the tip 67a of the second plate portion 67 of the top beam 61, and the reinforcement The opening distance W1 between the end portion 61a of the portion 61, that is, the end portion 64a of the side beam portion 64 is shorter than the width dimension W0. Preferably, the distance W1 is not less than 1/2 of the width dimension W0 and not more than 3/4.

  The distance W2 between the end portion 61a of the reinforcing portion 61 of the top beam 60 and the folded portion 68 of the flat plate portion 65, that is, the distance W2 in the Y direction of the lower surface of the first plate portion 66 is larger than the width dimension W0 of the upper sill 22. large. The distance W2 is preferably greater than 1.0 times the width dimension W0 and 1.3 times or less. Furthermore, 1.2 times or less is preferable.

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. 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 any problems.

  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.

  First, as shown in FIGS. 14A and 14B, the first end portion (right end portion) of the ceiling beam 60 is moved to the upper sill 22 of the first side structure 20 located on the right side in the X direction. Link. In this step, as shown in FIG. 14 (A), the top plate 60 is placed in an oblique posture in which it is tilted slightly toward the container 1 from the vertical direction (Z direction), and the second plate portion 67 is moved upward 22 It inserts into the slit 22f formed in the outer side plate part 22b. Thereafter, as shown in FIGS. 14A to 14B, when the ceiling beam 60 is tilted in the γ direction so as to be in a substantially horizontal posture, the upper plate portion 22a and the inner plate portion 22c of the upper sill 22 are moved to the ceiling beam 60. Is sandwiched between the end portion 64 a of the side beam portion 64 and the folded portion 68 of the flat plate portion 65.

  Next, as shown in FIGS. 15A and 15B, the second end portion (left end portion) of the ceiling beam 60 is placed on the upper sill 22 of the first side structure 20 located on the left side in the X direction. Link. In this step, the flat plate portion 65 is bent downward at the boundary portion between the reinforcing portion 61 and the first plate portion 66 at the second end portion of the ceiling beam 60 in a substantially horizontal posture. Since the ceiling beam 60 is formed of an iron plate having a thickness of 1 mm or less, and preferably 0.7 mm, the flat plate portion 65 can be bent downward only by hand force.

  After bending the flat plate portion 65 downward, as shown in FIG. 15 (A), a rightward force F1 is applied to the upper sill 22 of the left side structure 20, and the upper sill 22 is slightly deformed to the right. The second plate portion 67 of the flat plate portion 65 is inserted into the slit 22f formed in the outer plate portion 22b. When the rightward force F1 applied to the upper sill 22 is removed, the upper sill 22 tries to return to the left. At this time, if the reinforcing portion 61 of the top beam 60 is pushed downward by hand force, As shown in FIG. 15 (A) to FIG. 15 (B), the bending of the flat plate portion 65 is restored to a flat plate shape. Then, the upper plate portion 22 a and the inner plate portion 22 c of the upper sill 22 are sandwiched between the end portion 64 a of the side beam portion 64 of the top beam 60 and the folded portion 68 of the flat plate portion 65.

  Since the ceiling beam 60 is formed of a thin metal plate, the ceiling beam 60 is lightweight, easy to handle, and can be manufactured at low cost. The opening distance W1 between the distal end portion 67a of the second plate portion 67 and the end portion 64a of the side beam portion 64 of the top beam 60 is shorter than the width dimension W0 of the upper sill 22 in the X direction. The end portion 64a of the beam portion 64 and the inner plate portion 22c of the upper sill 22 are very close to each other. Therefore, even if the mass of the container stacked on the top acts on the reinforcing portion 61 of the top beam 61 downward, the first plate portion 66 is not greatly deformed, and the flat plate portion 65 of the top beam 60 is the upper stagnation. 22 is not easily removed.

  Moreover, even if the force F2 which tries to leave | separate acts on the upper stile 22 which opposes an X direction as shown in FIG.14 (B) and FIG.15 (B) by the mass of the container loaded on top. Since the outer end portion of the upper plate portion 22a of the upper sill 22 is merely abutted against the inner surface of the folded portion 68 of the first plate portion 66 and the second plate portion 67, the flat plate portion 65 is easily deformed. In other words, it is possible to prevent the upper stiles 22 of the first side structure 20 facing in the X direction from separating. Therefore, it is possible to prevent the other containers 1 stacked thereon from falling into the facing portions of the first side structure 20.

  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.

  At this time, when the top beam 60 is pushed upward by hand force, the second plate portion 67 can be relatively easily deformed in the direction (i) as shown in FIG. Can be removed upward from the upper stile 22.

  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.

  Furthermore, since the ceiling beams 22 of the first side structure 20 facing each other are connected by the ceiling beam 60 formed of a relatively thin metal plate, the first beam is loaded by the mass of the container 1 stacked thereon. Problems such as the separation of the upper stiles 22 of the side structure 20 from each other do not occur.

  Note that a ceiling beam 60A, which is a modified example shown in FIG. In the ceiling beam 60A, the reinforcing portion 61A is formed of a material having relatively high rigidity such as a pipe material or a channel material. The first plate portion 66A and the second plate portion 67A of the flat plate portion 65A are formed of an iron plate having a thickness of about 0.7 mm, and the flat plate portion 65A is welded and fixed to the reinforcing portion 61A.

  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 part structure 10a 1st edge part 10b 2nd edge part 20 1st side part structure 21 Lower edge 22 Upper edge 22a Upper board part 22b Outer side board part 22c Inner side board part 22f Slit 23 Outer pillar 24 Outer pillar 24 Inner pillar 30 Second side structure 31 Upper stile 32 Inclined strut 33 Support metal plate 33a Support piece 50 Upper coupling metal 60 Top beam 61 Reinforcement portion 63 Bending portion 65 Flat plate portion 66 First plate portion 67 Second plate portion 68 Folded portion

Claims (6)

In a container provided with a bottom structure, a side structure that rises from four sides of the bottom structure, and a top beam that connects the upper tops of the opposing side structures,
The ceiling beam is formed of a metal plate, and includes a reinforcing portion that extends in a longitudinal direction that is a direction in which the side structure faces each other, and a flat plate portion that is provided integrally or separately at both ends of the reinforcing portion. The reinforcing portion is bent at a bending portion extending in a longitudinal direction, and the flat plate portion is folded at a first plate portion extending from an end portion of the reinforcing portion and a tip portion of the first plate portion, and A second plate portion extending toward the reinforcing portion,
The upper plate and the both ends of the top beam are connected so that the first plate is installed on the upper plate of the upper plate and the second plate enters the lower side of the upper plate. Has been
An opening distance (W1) between the end portion of the reinforcing portion and the tip portion of the second plate portion is narrower than a width dimension (W0) of the upper stile, and from the end portion of the reinforcing portion to the first plate portion. A container having a distance (W2) from the second plate portion to the turn-up portion is greater than a width dimension (W0) of the upper hood. The upper stile has the upper plate portion and an outer plate portion that is bent downward from the upper plate portion outside the side structure,
The container according to claim 1, wherein a slit is formed in the outer plate part, and the second plate part is inserted into the slit from the outside of the outer plate part. In a manufacturing method of a container provided with a bottom structure, a side structure that rises from four sides of the bottom structure, and a top beam that connects the upper tops of the side structures facing each other,
The top beam having a reinforcing portion extending in a longitudinal direction that is a direction in which the side structure faces and a flat plate portion extending from both end portions of the reinforcing portion is formed of a metal plate,
The reinforcing portion is bent at a bending portion extending in a longitudinal direction, and the flat plate portion is folded back at a first plate portion extending from an end portion of the reinforcing portion and a front portion of the first plate portion to be formed into the reinforcing portion. An opening distance (W1) between the end portion of the reinforcing portion and the tip end portion of the second plate portion is narrower than the width dimension (W0) of the upper hook, The distance (W2) from the end portion of the reinforcing portion to the folded portion between the first plate portion and the second plate portion is greater than the width dimension (W0) of the upper stile,
The second plate portion is inserted into the lower side of the upper hood, the first plate portion is installed on the upper plate portion, and the reinforcing portion is interposed between the two opposing upper hoods. Characteristic container manufacturing method. (1) At a boundary portion between the reinforcing portion and the first plate portion of the top beam, a flat plate portion is bent in a downward direction where the second plate portion exists, and the second plate portion is placed under the upper hood. Get into the side,
(2) After that, the bending of the boundary portion is restored to the original state, the first plate portion is installed on the upper plate portion, and the reinforcing portion is placed between the two upper stiles facing each other. The container manufacturing method according to claim 3, wherein the container is interposed in the container. First, the top beam is set in an inclined posture that tilts toward the container side from the vertical direction, and the second plate portion provided at the first end of the top beam enters the lower side of the upper hood,
The container manufacturing method according to claim 4, wherein assembly is performed in the steps (1) and (2) at the second end of the ceiling beam. The upper stile has the upper plate portion and an outer plate portion bent downward from the upper plate portion outside the side structure, and a slit is formed in the outer plate portion,
The container manufacturing method according to claim 4 or 5, wherein the second plate portion is inserted into the slit from the outside of the outer plate portion.

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