JP2017132492A - container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container capable of being easily assembled and capable of being disassembled or folded.SOLUTION: First lateral structures 20 are attached to both X-direction ends of a bottom structure 10. The first lateral structure 20 has a shaft body 41 provided in a lower part of a rotary support 21, and the shaft body 41 is rotatably supported on a rotary connection part 40. The pair of first lateral structures 20 is brought into a vertical attitude (ii), and a second lateral structure 30 is built in for completion of assembly of a container 1. The first lateral structures 20 and 20 can be brought into a reclined attitude (i) and transported or stored.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a container that has a cubic shape when in use and can be disassembled or folded after use.

  In general, containers for storing and transporting various types of luggage are assembled immediately before use, disassembled after use and discarded, or materials are reused.

  The container described in the following Patent Document 1 uses a plurality of beam members, and each beam member is connected with a receiving member interposed therebetween, and a steel wire rope is stretched between the beam member and the beam member. Thus, a cubic skeleton is formed.

  The container described in Patent Document 2 is a pallet made of plastic or metal, in which three fixed side plates are set up to form a cube having an opening on the side, and this opening is a moving side plate. It is a structure that is blocked by.

JP-A-11-301777 JP 2003-40271 A

  Since the container described in Patent Document 1 has a structure that connects a plurality of horizontal beams and a plurality of vertical beams, the number of beams used for assembly is large, and there are a plurality of receivers for connecting the beams. It is necessary, and further, a steel wire rope is necessary, so that the number of parts is very large and the assembling work is complicated.

  In the container described in Patent Document 2, each surface of the cube is composed of a pallet, a fixed side plate, and a movable side plate, so that the number of parts is required and the number of parts increases. Also, the assembly work for combining the respective plate materials is complicated.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a container that facilitates assembly work, disassembly or folding work, and can be used repeatedly.

The present invention, in a container having a rectangular bottom structure, and a side structure rising from four sides of the bottom structure,
Between the lower end of at least one of the side structures and the bottom structure, the side structure is rotated between a collapsed posture that overlaps the bottom structure and a vertical posture that stands up from the bottom structure. There is a pivotal connection that supports it freely,
In the rotation connecting portion, when the side structure is in a standing posture, the rotation support column is fixed to the side structure in the vertical posture and is vertically fixed to the lower end of the rotation column. And a shaft body having a shaft center located on the inner side of the container than the center of the rotating support column,
The bottom structure is formed with a shaft passage groove extending in the vertical direction, and a shaft holding groove that is continuous with the shaft passage groove and is recessed toward the inside of the container, and the side structure is the vertical structure. In the posture, the shaft body enters the shaft holding groove,
The shaft body is rotated in the shaft holding groove, and the side structure can be rotated to the collapsed posture.

  The container of this invention can attach or detach the said side structure from the said bottom structure by allowing the said shaft to pass in the said shaft passage groove | channel.

  In the container according to the present invention, when the side structure is in the vertical posture through the rotation connecting portion, a fixing side structure is installed between a pair of the side structures. It can be configured such that the sides of the side structure are fixed to each other.

  In the container of the present invention, when the side structure is in the collapsed position, a gap is formed between the side structure and the bottom structure in the collapsed position, and is removed from the bottom structure. The fixed side surface structure can be accommodated in the gap.

  In the container according to the present invention, a protrusion is provided on the rotating support column at a position away from the shaft body, and a part of the bottom structure is sandwiched between the shaft body and the protrusion. Are preferred.

  In this case, if the protrusion is detachable, the side structure can be detachably attached to the bottom structure.

  Further, in the container of the present invention, a guide plate is fixed to the bottom structure, and when the side structure rotates from the vertical posture to the tilted posture at the edge of the guide plate, the protrusion is formed. It is preferable that a guide portion for guiding the movement of the portion is formed.

  Furthermore, in the container according to the present invention, the guide plate may be provided with a recess into which the protrusion is fitted when the side structure is in the vertical posture, so that the side structure is prevented from falling. preferable.

  The container of the present invention is capable of transporting and storing the container by rotating the side structure to the collapsed posture with the rotation connecting portion provided between the bottom structure and the side structure as a fulcrum. In addition, a cubic structure can be obtained by rotating the side structure to a vertical posture.

  In addition, the rotation connecting portion can release the connection between the side structure and the bottom structure, and the container can be disassembled.

The front view which shows the state with which the container of the 1st Embodiment of this invention was piled up in multiple steps, Right side view of one container seen from the direction of arrow II in FIG. Exploded front view showing one container disassembled, The partial perspective view which looked at the rotation connection part from the inside of a container, The partial front view which shows the operation | work which connects a bottom part structure and a side structure via a rotation connection part, A partial front view showing a state in which the side structure is in a fallen posture overlapping with the bottom structure, A partial front view showing a state in which the side structure is in a vertical posture rising from the bottom structure, An exploded perspective view showing a fixing mechanism for fixing the side of the side structure, The front view which shows the state piled up upwards in the state which the side surface structure fell down, The same front view as FIG. 1 showing a state in which the containers of the second embodiment of the present invention are stacked in a plurality of stages, The side view which looked at the container shown in FIG. 10 from the same right side as FIG.

  In the container 1 according to the embodiment of the present invention, each material constituting the main part is made of a support frame metal, for example, iron.

<Container structure>
1 is a front view showing a state in which two containers 1 are stacked, FIG. 2 is a right side view of one container shown in FIG. 1, and FIG. 3 shows one container in the same direction as FIG. It is an exploded front view.

  Each container 1 has a bottom structure 10. The bottom structure 10 has a square shape when viewed from above. The bottom structure 10 has support frames 11 shown in FIGS. 1 and 3 arranged on both sides in the Y direction, and a plurality of bottom frames 13 shown in FIG. 2 are provided between the support frames 11 and 11. Is provided. The support frames 11, 11 positioned on both sides in the Y direction and the bottom frames 13, 13,... Positioned therebetween extend in the X direction in parallel with each other.

  Three bottom frames 12 are provided below the support frame 11 and the bottom frame 13. The three bottom frames 12 are provided in parallel in the X direction with an interval as shown in FIG. 1, and extend in the Y direction as shown in FIG.

  The two support frames 11 and the plurality of bottom frames 13 are placed on a bottom frame 12, and the support frame and the bottom frame 13 are welded and fixed to the bottom frame 12, respectively.

  The plurality of bottom frames 13 have a lower height dimension in the Z direction than the support frame 11. As shown in FIG. 2, a bottom plate 14 is laid and fixed on the bottom frame 13. The bottom plate 14 is formed of a wooden plate material or a metal plate.

  The first side surface structure 20 is attached to each of the pair of sides extending in the Y direction of the bottom structure 10. As shown in FIG. 2, the first side surface structure 20 connects the pair of rotating struts 21 arranged in parallel with a gap in the Y direction and the lower ends of the pair of rotating struts 21 to each other. The lower end frame 22 extending in the Y direction and the upper end frame 23 extending in the Y direction are connected to connect the upper end portions of the pair of rotating struts 21 to each other. The pair of rotating struts 21, the lower end frame 22, and the upper end frame 23 are fixed by welding.

  As shown in FIG. 2, in the first side surface structure 20, an intermediate column 24 extending in parallel with the rotating column 21 is provided between the pair of rotating columns 21. The lower end of the intermediate column 24 is welded and fixed to the lower frame 22, and the upper end of the intermediate column 24 is welded and fixed to the upper frame 23. A pair of reinforcing frames 25 extending obliquely are provided on both sides of the intermediate column 24. A metal plate 26 is welded and fixed to the lower end frame 22, and a lower end portion of the reinforcing frame 25 is welded and fixed to the metal plate 26. A metal plate 27 is fixed to the joint between the rotating support column 21 and the upper end frame 23, and the upper end of the reinforcing frame 25 is welded and fixed to the metal plate 27.

  The rotary support column 21 is formed of an iron pipe material having a square cross section, and the upper end frame 23, the intermediate support column 24, and the reinforcing frame 25 are also formed of an iron pipe material having a square cross section. However, the thickness dimension in the X direction of the upper end frame 23, the intermediate support column 24, and the reinforcing frame 25 is thinner than the thickness dimension in the X direction of the rotating support column 21.

  The second side structure 30 is attached to a pair of sides extending in the X direction of the bottom structure 10. As shown in FIGS. 1 and 3, the second side structure 30 includes a connection frame 31 that extends in the X direction at the top, and an intermediate column 32 that is vertically connected to an intermediate portion of the connection frame 31. . A pair of reinforcing frames 35 extending obliquely are provided on both sides of the intermediate column 32. Downward bracket plates 33 are fixed to both ends in the X direction of the connecting frame 31 by welding, and the upper ends of the reinforcing frames 35 are fixed to the bracket plate 33 by welding. A metal plate 34 is welded and fixed to the lower end portion of the intermediate column 32, and the lower end of the reinforcing frame 35 is welded and fixed to the metal plate 34.

  The connection frame 31, the intermediate support column 32, and the reinforcement frame 35 are formed of a steel pipe member having a square cross section. The thickness dimension in the Y direction is the same as that of the upper end frame 23 of the first side structure 20. It is almost the same as the thickness dimension in the X direction of the intermediate column 24 and the reinforcing frame 25.

  As shown in FIGS. 1 and 2, the bottom structure 10 and the lower ends of the pair of first side structures 20 are detachably connected via a rotation connecting part 40. In addition, the first side surface structure 20 is rotatable about the rotation connecting portion 40 as a fulcrum in a state where the second side surface structure 30 is not attached. 6 and FIG. 9, the first side surface structure 20 is in a tilted position (i) overlapping with the bottom structure 10, and is perpendicular to the bottom structure 10 as shown in the left side of FIG. 3 and FIG. It can be freely rotated between the vertical posture (ii) standing up to

  The rotation connecting portions 40 are provided between the end portions on both sides in the X direction of the first side surface structures 20 and the bottom structure 10. Therefore, the rotation connecting part 10 is provided at each of the four corners of the rectangular bottom structure 10.

  As shown in FIG. 4, in the rotation connecting portion 40, a shaft body 41 is welded and fixed to the lower end portions of the rotation support columns 21 provided on both side portions of the first side surface structure 20. The shaft body 41 has a cylindrical shape, and the central axis O intersects with the longitudinal direction of the rotating support column 21 of the first side surface structure 20 and is parallel to the longitudinal direction of the lower end frame 22 of the first side surface structure 20. It extends to. Further, the shaft body 41 protrudes slightly in the Y direction from the outer surface 21 b facing the Y direction of the rotating support column 21.

  As shown in FIG. 7, when the first side structure 20 is in the vertical posture (ii), the shaft body 41 is fixed to the side surface 21 a facing the inside of the container 1 in the rotating column 21. . Therefore, as shown in FIG. 7, when the first side surface structure 20 is in the vertical posture (ii), the center axis O of the shaft body 41 is closer to the container 1 than the center line Oa of the rotating column 21. It is arranged at a position close to the inside. As shown in FIGS. 5 to 7, a projecting portion 42 is provided so as to protrude from the outer surface 21 b of the rotating support column 21 facing the Y direction. As shown in FIG. 4, a male screw 42 a is formed integrally with the protrusion 42. As shown in FIG. 5, a mounting hole 21 f that penetrates in the Y direction is formed in the rotating support column 21, and the male screw 42 a passes through the mounting hole 21 f in the Y direction and faces the Y direction of the rotating support column 21. On the inner surface 21c, the protrusion 42 is fixed by screwing the nut 43 onto the male screw 42a.

  The protrusion 42 is preferably cylindrical. The protrusion 42 may be a roller that can rotate around an axis.

  As shown in FIG. 4 and FIGS. 5 to 7, in the rotation connecting portion 40, the connecting metal plate 44 is fixed to the end portion in the X direction of the support frame 11 provided on the bottom structure 10 by welding. . The connecting metal plate 44 is bent into an L shape. A support plate (support portion) 44a which is a bent piece extending in the Y direction in the connecting metal plate 44 is abutted against the end surface 11a of the support frame 11, and a guide plate 44b which is a bent piece extending in the X direction is provided. It abuts against the outer surface 11b of the support frame 11 facing in the Y direction.

  As shown in FIG. 4, on the inner surface side of the guide plate 44b, a narrow portion 11d is provided at an end portion of the support frame 11 via a step portion 11c. The narrow width portion 11d is formed separately from the support frame 11, and is fixed to the end portion of the support frame 11, or is fixed to the inner surface of the guide plate 44b. Alternatively, the width detail 11 d may be integrally formed at the end of the support frame 11. A holding plate 45 is welded and fixed to the inner surface of the guide plate 44b so as to overlap with the upper side of the rotating support column 21. In the rotation connecting portion 40, a shaft passage groove Cp extending in the Z direction is formed in a facing portion between the end side 45a of the holding plate 45 and the support plate 44a. Further, a shaft holding groove Ca is formed between the downward side 45 b of the holding plate 45 and the upper surface of the narrow portion 11 d of the support frame 11. The shaft passage groove Cp and the shaft holding groove Ca are continuous in an L shape, and the shaft holding groove Ca is formed to extend inward of the container 1 in the X direction continuously to the lower portion of the shaft passage groove Cp. Has been.

  As shown in FIG. 4, a guide portion 46 having a protruding surface shape is formed on the edge surface of the guide plate 44b. As shown in FIG. 7, a part of the guide portion 46 is formed so as to coincide with the locus of the radius R centering on the shaft center O of the shaft body 41 entering the shaft holding groove Ca. Further, a concave portion 47 that is recessed downward is formed at the upper edge portion of the guide plate 44b.

  As shown in FIG. 1, a connection mechanism 50 is provided between the connection frame 31 of the second side structure 30 and the upper end portion of the rotating support column 21 in the vertical posture (ii) on both sides in the X direction. Is provided.

  As shown in FIG. 8, in the connection mechanism 50, the connection shaft 51 is supported by the bracket plate 33 so as to be movable back and forth in the X direction and to be rotatable. A locking hook 51a is bent at the tip of the connecting shaft 51. The connecting shaft 51 is provided with a handle 52, and the bracket plate 33 is provided with a holding metal 53 for holding the handle. The holding metal 53 is made of an elastically deformable material such as a leaf spring. A retaining hole 54 is formed in the upper part of the rotating support column 21 of the first side structure 20. The retaining hole 54 is a long hole whose longitudinal direction is directed in the Z direction. Both the locking hole 54 and the shaft body 41 are provided on the side surface 21 a of the rotating column 21.

  As shown in FIG. 1 and FIG. 8 and the like, a support metal plate 29 is welded and fixed to the upper part of the rotating support column 21 constituting the first side structure 20. The supporting metal plate 29 is bent in an L shape and protrudes slightly upward from the upper end portion 21 d of the rotating support column 21.

<Assembly of container>
As shown in FIG. 3, the pair of first side structure 20 is attached to the bottom structure 10 in a state where the second side structure 30 is not attached to the bottom structure 10.

  As shown in FIG. 5, the first side structure 20 is attached to the first side structure 20 with the protrusion 42 and the nut 43 removed from the rotating column 21 of the first side structure 20. 20, the shaft body 41 is allowed to pass downward in the shaft passage groove Cp, and the shaft body 41 enters the shaft holding groove Ca as shown by the solid line in FIG. And the protrusion 42 is fixed by inserting the internal thread 42a integral with the protrusion 42 in the attachment hole 21f of the rotation support | pillar 21, and screwing the nut 43 in it.

  As shown in FIG. 6, when the protrusion 42 is fixed to the rotating support column 21, the protrusion 42 faces the guide 46 at the peripheral edge of the guide plate 44 b in a state where the shaft body 41 enters the shaft holding groove Ca. To do. As a result, a part of the bottom structure 10 is sandwiched between the shaft body 41 and the protrusion 42, and the shaft body 41 cannot be pulled out of the shaft holding groove Ca.

  As shown in FIG. 6, the first side surface structure 20 starts from the collapsed posture (i) overlapping the bottom structure 10 with the shaft center O of the shaft 41 entering the shaft holding groove Ca as a fulcrum. 10 can be rotated to a vertical posture (ii) that rises vertically. During this time, the protrusion 42 moves along the guide portion 46 at the edge of the guide plate 44b, and the shaft body 41 does not come out of the shaft holding groove Ca.

  As shown in FIG. 7, when the first side structure 20 rises to the vertical posture (ii), the support plate 44 a in which the contact surface 21 e facing the X direction of the rotating column 21 is a part of the connecting metal plate 44. The first side surface structure 20 can be prevented from further falling in the counterclockwise direction from the vertical posture (ii) shown in FIG.

  As shown in FIG. 2, an intermediate support plate 49 is provided in the middle of the support plates 44a, 44a located on both sides in the Y direction, and the intermediate support plate 49 is welded to the bottom frame 12 so as to face vertically. Is fixed. When the first side surface structure 20 is rotated to the vertical posture (ii), the lower end frame 22 comes into contact with the intermediate support plate 49, and the fall prevention of the first side surface structure low 20 can be further ensured.

  Further, as shown in FIG. 7, when the first side structure 20 is in the vertical posture (ii), the protrusion 42 fixed to the rotating column 21 is a guide plate 44 b that is a part of the connecting metal plate 44. It fits into a recess 47 formed at the upper end of the. The connecting metal plate 44 that is a part of the bottom structure 10 is sandwiched from above and below by the shaft body 41 and the protrusions 42 fixed to the rotating support column 21, whereby the first side structure 20. Large backlash in the vertical direction can be further suppressed.

  In addition, since the protrusion 42 is fitted into the recess 47, the first side structure 20 is placed on the bottom structure 10 even when the hand is released from the first side structure 20 in the vertical posture (ii). It will be possible to prevent falling down.

  In FIG. 3, the first side structure 20 on the left side in the drawing is in the vertical posture (ii), but the bottom side portion of the right side first side structure 20 is also rotated to the vertical posture (ii). The second side structure 30 is attached to the two sides of the structure 10.

  As shown in FIGS. 1 and 3, an insertion hole 11 e is formed at the center of the support frame 11 in the X direction. The second side structure 30 is installed on the support frame 11, and the lower end portion 32a of the intermediate column 32 of the second side structure 30 is inserted into the insertion hole 11e.

  Furthermore, when the handles 52 of the coupling mechanisms 50 provided at both ends in the X direction at the upper part of the second side structure 30 are rotated counterclockwise to the rotational posture shown in FIG. The direction of the locking hook 51a matches the direction of the retaining hole 54 provided in the upper part of the rotating support column 21. Holding the handle 52, the connecting shaft 51 is inserted into the retaining hole 54, and the handle 52 is rotated clockwise to turn downward, the locking hook 51 a is rotated inside the rotating column 21, and is hooked. It is locked so as not to escape from the inside of the blind hole 54. Further, the locking hook 51a is locked to the upper end portion 54a of the latching hole 54, so that the second side surface structure 30 is connected to the first side surface structure 20 so that the second side surface structure 30 does not rattle up and down. . The handle 52 is held by the holding metal 53 in a downward posture.

  Thereby, the container 1 in which the first side surface structure 20 and the second side surface structure 30 rise from the four sides of the bottom structure 10 is assembled.

  The assembled container 1 can be stacked up as shown in FIG. Since the supporting metal plate 29 provided on the upper portion of the container 1 protrudes upward from the rotating support column 21, the bottom-laying frame 12 of the container 1 stacked above fits inside the supporting metal plate 29. , It is possible to prevent the positional deviation of the stacked containers 1.

<During transportation and storage>
After the object to be packed is placed on the container 1 and the transportation is completed, the container 1 can be disassembled to be in a flat state.

  First, in the connection mechanism 50 shown in FIG. 8, the first side structure 20 and the second side structure 30 are rotated by rotating the handle 52 to a horizontal posture and separating the connection shaft 51 from the rotation column 21. As shown in FIG. 3, the pair of second side surface structures 30 can be pulled upward from the bottom structure 10.

  Next, the first side structure 20 in the vertical posture (ii) is lifted upward by the amount of rattling during assembly, and the protrusion 42 is removed from the recess 47 of the guide plate 44b. As it is, the first side surface structure 20 is rotated around the shaft body 41 so as to overlap the bottom structure body 10, and as shown by a solid line in FIG. 6 and further as shown in FIG. ).

  While the first side surface structure 20 is rotated from the vertical posture (ii) shown in FIG. 7 to the collapsed posture (i) shown in FIG. 6, the protrusion 42 provided on the rotary support column 21 has a guide plate 44b. It moves along the guide part 46. Then, as shown in FIG. 6, when the first side surface structure 20 is in the collapsed posture (i), the guide plate 44 b is sandwiched between the shaft body 41 and the projecting portion 42, and the shaft body 41 holds the shaft. The pair of first side surface structures 20 do not come out of the recesses Ca, and the pair of first side surface structures 20 remain in the collapsed posture (i) and do not come off the bottom structure 10.

  As shown in FIG. 9, when the two first side surface structures 20 are tilted and rotated to the posture (i), the supporting metal plate 20 fixed to the upper end portion of the rotating column 21 is moved to the Y of the supporting frame 11. It is possible to prevent the first side surface structure 20 in the collapsed posture (i) from greatly rattling in the Y direction on the bottom structure 10 and overlapping the outside of the outer surface facing in the direction.

  Further, when the support metal plate 20 is placed on the support frame 11, the rotation support 21, the intermediate support 24, the reinforcement frame 25, and the bottom structure 10 of the first side structure 20 in the collapsed posture (i) are placed on the bottom structure 10. The provided bottom plate 14 is positioned substantially in parallel.

  As described above, the thickness dimensions of the upper end frame 23, the intermediate strut 24 and the reinforcing frame 25 constituting the first side structure 20 are thinner than the thickness dimension of the rotating strut 21. Therefore, as shown in FIG. 9, when the first side surface structure 20 is in the collapsed posture (i), the upper end frame 23, the intermediate strut 24, and the reinforcing frame 25 constituting the first side surface structure 20, A gap having a height T is formed between the bottom structure 10 and the bottom plate 14. The height dimension T is set to a height at which two removed second side surface structures 30 can be stored.

Therefore, as shown in FIG. 3, two second side surface structures 30 extracted upward are overlapped, and the height formed between the first side surface structure 20 and the bottom plate 14 in the collapsed posture (i). It can be transported and stored in a gap of T.
Furthermore, as shown in FIG. 9, it is also possible to install the folded containers 1 in an overlapping manner.

<Second Embodiment>
FIG. 10 shows the container 101 according to the second embodiment of the present invention from the same front as shown in FIG. 1, and FIG. 11 shows the container 101 from the right side.

  As shown in FIG. 10, the second side surface structure 30 of the container 101 has a large length in the X direction, and two intermediate struts 32 are provided at intervals in the X direction. As shown in FIG. 11, the first side structure 30 has a height dimension in the Z direction larger than that of the first embodiment shown in FIG. 2.

  The container 101 of the second embodiment also has the same structure as that of the first embodiment in the structure of the rotation connecting portion 10 and the structure of the connecting mechanism 50, and can be folded into the same state as shown in FIG. .

DESCRIPTION OF SYMBOLS 1 Container 10 Bottom structure 11 Support frame 12 Bottom-laying frame 20 1st side surface structure 21 Rotation support | pillar 30 2nd side surface structure 40 Rotation connection part 41 Shaft body 42 Protrusion part 44 Connection metal plate 44a Support plate 44b Guide plate 46 Guide portion 47 Recess 50 Connection mechanism 51 Connection shaft

Claims (8)

In a container having a rectangular bottom structure and a side structure rising from four sides of the bottom structure,
Between the lower end of at least one of the side structures and the bottom structure, the side structure is rotated between a collapsed posture that overlaps the bottom structure and a vertical posture that stands up from the bottom structure. There is a pivotal connection that supports it freely,
In the rotation connecting portion, when the side structure is in a standing posture, the rotation support column is fixed to the side structure in the vertical posture and is vertically fixed to the lower end of the rotation column. And a shaft body having a shaft center located on the inner side of the container than the center of the rotating support column,
The bottom structure is formed with a shaft passage groove extending in the vertical direction, and a shaft holding groove that is continuous with the shaft passage groove and is recessed toward the inside of the container, and the side structure is the vertical structure. In the posture, the shaft body enters the shaft holding groove,
The container, wherein the shaft body is rotated in the shaft holding groove so that the side structure can be rotated to the collapsed posture.   The container according to claim 1, wherein the side structure can be attached to and detached from the bottom structure by passing the shaft through the shaft passage groove.   When the side structure is in the vertical posture through the pivotal connecting portion, a fixing side structure is installed between the pair of side structures, and the side of each side structure The container according to claim 1, wherein the containers are fixed to each other.   When the side surface structure is in the collapsed posture, a gap is formed between the side surface structure and the bottom structure in the collapsed posture, and the fixing structure is removed from the bottom structure. The container according to claim 3, wherein a side structure can be stored in the gap. The rotating strut is provided with a protrusion at a position away from the shaft body,
The container according to any one of claims 1 to 4, wherein a part of the bottom structure is sandwiched between the shaft body and the protrusion.   The container according to claim 5, wherein the protrusion is detachable.   A guide plate is fixed to the bottom structure, and a guide portion that guides the movement of the protrusion when the side structure rotates from the vertical posture to the tilted posture at the edge of the guide plate. The container according to claim 5 or 6, wherein the container is formed.   The container according to claim 7, wherein the guide plate is formed with a recess into which the protrusion is fitted when the side surface structure is in the vertical posture to prevent the side surface structure from falling down.

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