JP2006076597A - Folding container - Google Patents

Abstract

A folding container that can be used as a picking container and a transport container is provided.
An upper frame body made up of a pair of opposing short side frame members and long side frame members, a rectangular housing portion and a bottom plate made up of a peripheral edge portion formed integrally with the periphery thereof. The pair of short side plates 4, which are rotatably connected to the short side frame member 21 of the upper frame 2, and the upper long side plate 51 and the lower long side plate 52 are connected so as to be foldable so that the long side frame of the upper frame 2 can be folded. The upper long side plate 51 is pivotally connected to the material 22, and the folding container 1 is made up of a pair of long side plates 5 in which the lower long side plate 52 is pivotally connected to the long side edge of the bottom plate 3. An opening 5 a is formed on one long side plate 5, and engaging portions 3 x and 4 x are formed on the long side edge of the accommodating portion 31 of the bottom plate 3 and the left and right edge of each short side plate 4. The side plate 6 inserted along the inner surface of the long side plate 5 is held in an upright state by the engaging portion 3x of the bottom plate 3 and the engaging portion 4x of the short side plate 4.
[Selection] Figure 1

Description

  The present invention relates to a synthetic resin folding container.

  Conventionally, when transporting an article, the article is stored in a container, and the container is loaded on a truck or the like and transported to a destination. On the other hand, an empty container after the transportation of the article is loaded on a truck or the like again. To collect.

  In this case, if an empty container is recovered as it is, the transport efficiency is lowered. Therefore, a container that can be folded at the time of return to reduce the volume has been devised.

  As shown in FIGS. 12 and 13, such a container 100 includes an upper frame 103 composed of a pair of opposing short side frame members 101 and long side frame members 102, a rectangular bottom plate 104, and a pair of short side plates 104. A lower plate of each short side frame member 101 of the upper frame 103 is composed of a side plate 105 and a pair of long side plates 108 in which the lower end portion of the upper long side plate 106 and the upper end portion of the lower long side plate 107 are foldably connected. The upper end of each short side plate 105 is pivotally connected to each other, and the upper end of the upper long side plate 106 of each long side plate 108 is rotated to the lower end of each long side frame member 102 of the upper frame 103. On the other hand, the bottom plate 106 is formed such that the lower end portion of the lower long side plate 107 of each long side plate 108 is rotatably connected to each long side end edge portion of the bottom plate 106 (for example, Patent Document 1). reference).

  And after pushing inward the lower part of the outer surface side of a pair of opposing short side board 105 inward and jumping up with respect to the upper frame 103, respectively, the upper long side board 106 and the lower long side board 107 of a pair of opposing long side board 108 are demonstrated. By pushing the connecting portion inward, the long side plates 108 can be folded and stored in a folded state between the upper frame 103 and the bottom plate 104. At this time, the short side plate 105 is stacked on the long side plate 108 folded in half inside the upper frame 103.

  Further, after lifting the upper frame 103 from the folded state and extending the folded upper long side plate 106 and lower long side plate 107 to raise each long side plate 108 to the vertical state with respect to the bottom plate 104, each short side plate By pushing down each of the 105 with respect to the upper frame 103, the container 100 can be assembled in a vertical state with respect to the bottom plate 104.

In a container having such a structure, when assembling the container to store the articles and storing them in a stacked state, in order to take out or store the stored articles, the stacked containers must be lowered one by one. There is a problem that the work efficiency is lowered. For this reason, a folding container has been proposed in which an opening is formed on one side of the container and a door that opens and closes the opening is attached to the one side (see, for example, Patent Documents 2 and 3). A folding container having an opening formed on one side surface of the container is also commercially available.
Japanese Utility Model Publication No. 58-119525 Japanese Patent Publication No. 5-25743 Japanese Utility Model Publication No. 7-8220

By the way, in the folding containers shown in Patent Documents 2 and 3 described above, even if the containers are stacked, the articles accommodated through the openings can be taken out by opening the doors, so-called Although it can be used as a picking container, there is a problem that the structure is complicated and the number of parts is increased as compared with the general folding container shown in Patent Document 1, so that the cost is increased and the cost is increased. In addition, when used as a transport container, if the quantity of stored items is small or the properties of the articles are flexible, if an impact is applied to the short side plate from the outside during transport, the short side plate jumps up and is stacked There is a risk of collapse of cargo. Furthermore, when the short side plate is pushed in from the outside, the short side plate can be flipped up, and the article may be stolen.

  On the other hand, a folding container in which an opening is only formed without attaching a door to one side of the container can be used as a picking container, but it can be used as a transport container with the opening left open. It is not possible.

  The present invention has been made in view of such problems, and provides a folding container that is simple in structure and can be manufactured at low cost, and that can be used as a picking container and a transport container. is there.

  The present invention includes an upper frame body composed of a pair of opposing short side frame members and long side frame members, a bottom plate composed of a rectangular housing portion and a peripheral edge portion formed integrally with the periphery thereof, and each of the upper frame body A pair of short side plates whose upper ends are rotatably connected to the lower end portions of the short side frame members, and a lower end portion of the upper long side plate and an upper end portion of the lower long side plate are connected to each other in a foldable manner. The upper end of each upper long side plate is pivotally connected to the lower end of each long side frame member, and the lower end of each lower long side plate is pivotable to each long side edge of the bottom plate. In a folding container constituted by a pair of long side plates connected to each other, an opening is formed in one long side plate, and left and right sides of each long side end edge portion and each short side plate inner surface of the housing portion surface of the bottom plate Engage with each of the end edges on the side facing the long side plate. There will be formed, it is characterized in that the side plate plugged along the inner surface of the long side plates is retained by the engagement portion of the engagement portion and the short side plate of the bottom plate to the upright position.

  According to the present invention, the lower part of the outer side of the pair of opposing short side plates is pushed inward, the respective short side plates are flipped up with respect to the upper frame, and then the upper long side plate and the lower portion of the pair of opposing long side plates. By pushing the connecting portion of the side plate inward, each long side plate can be folded in a folded state between the upper frame and the bottom plate. At this time, the short side plate is stacked on the long side plate folded in half inside the upper frame. Therefore, when collecting an empty container, the container can be folded to reduce the volume and transported, and the transport efficiency can be improved.

  On the other hand, the upper frame body is lifted from the folded state, the upper long side plate and the lower long side plate folded in half are extended, and each long side plate is raised to the vertical state with respect to the bottom plate. The container can be assembled by pushing it down and raising it vertically to the bottom plate. Here, by inserting the side plate along the inner surface of one long side plate, the left and right edges and the lower end edge of the side plate engage with the engaging portion of the short side plate and the engaging portion of the bottom plate, and the side plate stands upright. And the opening formed in one of the long side plates can be closed. Therefore, after storing articles in the assembled container, the containers can be stacked and stored or transported. In this case, the left and right end faces of the side plate are in contact with the inner surface of the short side plate, so that unintended jumping of the short side plate can be restricted, and container collapse during transportation or unloading can be prevented.

If a container arrives at the destination, the opening part of one long side board can be open | released by pulling up and taking out a side board from one long side board. Therefore, even when the containers are stacked, the article can be taken out through the opening. Further, it is not necessary to transfer articles from the transport container to the picking container.

  In addition, while forming an engaging part in the long side edge part of the accommodating part surface of a baseplate on the side which faces one long side board, and one right and left edge part of each short side board inner surface, the other long side board You may form in accordance with the long side edge part of the accommodating part surface of a bottom plate, and the other left and right edge part of each short side plate inner surface on the side which faces. As described above, when the engaging portion is also formed on the long side edge of the surface of the bottom plate housing portion on the side facing the other long side plate and the other left and right edge portions of the inner surface of each short side plate, The side plate pulled up from the side plate is inserted along the other long side plate, and its left and right end edges and lower end edge are engaged with the engaging portion of the short side plate and the engaging portion of the bottom plate, and is erected along the other side plate. It is possible to hold the state. Therefore, the side plate pulled up from one long side plate can be stored so as not to be lost. Also in this case, since the left and right end surfaces of the side plate are in contact with the inner surface of the short side plate, unintentional jumping of the short side plate is restricted, and the collapse of the load when the containers are stacked can be prevented.

  The engaging portion of the present invention may be an engaging protrusion that can be engaged with the left and right end edges and the lower end edge of the side plate, or the engagement that can be fitted with the left and right end edges and / or the lower end edge of the side plate. A mating groove may be used, and the engaging protrusion and the engaging groove may be used in combination. Further, the engagement protrusion or the engagement groove may be formed continuously or intermittently.

  In the present invention, when the side plate can be placed on the surface of the bottom plate accommodating portion without interfering with the rotation operation of the short side plate, the side plate can be placed on the bottom plate when the container is folded and collected. There is no need to store and transport the side plate separately from the container, and the container can be stored in one-to-one correspondence with the container, and there is no risk of loss.

  In the present invention, when a lid is rotatably connected to the upper end of each long side frame member of the upper frame, the upper opening of the container can be closed by the lid, and as a transport container Can be used. For example, if the lid is sealed with respect to the short side plate and transported, it becomes a sealed container, so that the theft of the article can be prevented. In this case, the lid body may be a double door system or a single door system.

  In the present invention, when the locking portion capable of locking the upper end portion of the side plate inserted along the inner surface of the long side plate is formed on the inner surface of the lid body, the upper opening is closed by the lid body When the article is transported, the upper end portion of the side plate erected along the inner surface of the long side plate can be locked by the locking portion of the lid, and the engaging portion of the bottom plate and the engaging portion of the short side plate In combination, the backlash of the side plate during transportation can be reliably suppressed.

  According to the present invention, the structure is simple and can be manufactured at low cost, and it can be used as a picking container and a transport container.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a folding container 1 of the present invention.

The folding container 1 includes an upper frame 2 composed of a pair of opposing short side frame members 21 and long side frame members 22, a rectangular housing portion 31 and a bottom plate formed integrally with a peripheral portion 32 at the periphery thereof. 3, a pair of short side plates 4, a pair of long side plates 5, in which a lower end portion of an upper long side plate 51 and an upper end portion of a lower long side plate 52 are connected in a foldable manner, and a side plate 6. The upper end of each short side plate 4 is rotatably connected to the lower end of each short side frame member 21 of the body 2, and each long side plate 5 is connected to the lower end of each long side frame member 22 of the upper frame 2. The upper end of the upper long side plate 51 is connected to each other in a freely rotatable manner, while the lower end portion of the lower long side plate 52 in each long side plate 5 is connected to the respective longer side peripheral edges of the bottom plate 3 in a freely rotatable manner. Is formed.

  One long side plate 5 is formed with an opening 5 a that extends over the upper long side plate 51 and the lower long side plate 52 while leaving the peripheral edge thereof.

  A plurality of hinge brackets 21 a are provided at set intervals at the lower end of each short side frame member 21 of the upper frame 2, and these hinge brackets 21 a are connected to the upper end of a short side plate 4 to be described later. The plurality of formed hinge cutouts 4a are respectively fitted. And each short side plate 4 with respect to each short side frame member 21 is provided with a fitting portion (not shown) formed on the hinge bracket 21a and a hinge pin 4b (see FIG. 3) provided on the hinge cutout portion 4a. Via each other.

  In addition, a plurality of hinge cutout portions 22a are formed at a set interval at the lower end portion of each long side frame member 22 of the upper frame body 2, and the hinge cutout portions 22a have a length described later. A plurality of hinge brackets 51 a provided at the upper end of the upper long side plate 51 in the side plate 5 are respectively fitted. The upper long side plate 51 of each long side plate 5 is connected to each long side frame member 22 via a hinge pin and a pin hole (not shown) of the hinge notch 22a and the hinge bracket 51a. .

  As shown in FIG. 2, the bottom plate 3 is formed integrally with a storage portion 31 for storing articles and a peripheral portion 32 for supporting the short side plate 4 and the long side plate 5, respectively. The surface of 32 is formed so as to be located above the surface of the accommodating portion 31 by a height slightly exceeding the thickness of the side plate 6. And on the surface of the accommodating part 31 in the bottom plate 3, a plurality of engaging projections 3x as engaging parts are formed at set intervals, located in the vicinity of each long side edge.

  Further, among the peripheral edge portions 32 of the bottom plate 3, a rising piece 321 having a height continuous with the upper surface of the long side peripheral edge portion is formed on the outer peripheral edge of the short side peripheral edge portion. It is set to contact the outer surface.

  On the other hand, among the peripheral edge portions 32 of the bottom plate 3, a plurality of hinge cutout portions 32a are formed at a set interval on the long side peripheral portion, and the long side plate 5 is provided in these hinge cutout portions 32a. A plurality of hinge brackets 52a provided at the lower end of the lower long side plate 52 are respectively fitted. And the lower long side board 52 of each long side board 5 is connected with the baseplate 3 through the hinge pin and pin hole which are not illustrated of the hinge notch part 32a and the hinge bracket 52a, respectively, so that rotation is possible.

  Here, the short side plate 4 is rotated with respect to the short side frame member 21 of the upper frame body 2, the lower end portion of the outer surface side thereof is brought into contact with the rising piece 321, and the lower end surface is set on the short side side of the bottom plate 3. When supported on the peripheral edge, the inner surface of the short side plate 4 is set to be positioned on the vertical surface of the short side peripheral edge of the accommodating portion 31 of the bottom plate 3. Further, the upper long side plate 51 is rotated with respect to the long side frame member 22 of the upper frame 2, and the lower long side plate 52 is rotated with respect to the long side side peripheral portion of the peripheral portion 32 of the bottom plate 3. When the long side plate 5 and the lower long side plate 52 are extended to support the long side plate 5 on the long side peripheral edge of the bottom plate 3, the inner surface of the long side plate 5 is on the vertical plane of the long side peripheral edge of the housing portion 31 of the bottom plate 3. Is set to be located.

The short side plate 4 is formed in a substantially shallow box shape, and a plurality of hinge cutouts 4a are formed at the upper end of the short side plate 4 corresponding to the hinge bracket 21a formed on the short side frame member 21 of the upper frame 2. The hinge notch 4a is provided with a hinge pin 4b. In addition, as shown in FIG. 3, engaging projections 4x as engaging portions are formed continuously from the vicinity of the upper end to the vicinity of the lower end, in the vicinity of the left and right edges on the inner surface side of the short side plate 4, On the left and right edges of the outer surface side, fitting ribs 4c are formed to protrude outwardly at intervals corresponding to the thickness of the fitted ribs 5b of the long side plate 5 described later.

  The long side plate 5 is configured such that the lower end portion of the upper long side plate 51 and the upper end portion of the lower long side plate 52 are foldably connected to each other, and the long side frame member 22 of the upper frame 2 is connected to the upper end portion of the upper long side plate 51. A plurality of hinge brackets 51a are formed corresponding to the hinge notches 22a formed on the bottom plate 3, and a hinge notch formed on the long side edge of the bottom plate 3 is formed at the lower end of the lower long plate 52. A plurality of hinge brackets 52a are formed corresponding to the portion 32a. Further, on the inner side of the long side plate 51 on the inner side of the upper long side plate 51 and on the left and right side of the inner side of the lower long side plate 52, the fitted ribs 5b having an L-shaped cross section projecting inwardly ( 4) is formed. Then, when the long side plate 5 is erected in a vertical state and the short side plate 4 is rotated, the fitting rib 4c of the short side plate 4 is fitted to the fitted rib 5b of the long side plate 5 as shown in FIG. Are set to match.

  Further, the side plate 6 has a width substantially corresponding to the inner surface interval of the pair of opposed short side plates 4, a height substantially corresponding to the interval from the surface of the accommodating portion 31 of the bottom plate 3 to the upper surface of the upper frame 2, and the bottom plate 3 is formed in a substantially rectangular shape with a thickness substantially corresponding to the distance from the peripheral edge of the accommodating portion 31 to the outer edge of the protruding portion 3x, and a handle hole 6a is formed in the vicinity of the upper end portion (see FIG. 1). The side plate 6 is selectively disposed at a position along the inner surface of one long side plate 5, a position along the inner surface of the other long side plate 5, and a position where the side plate 6 is placed on the surface of the accommodating portion 31 of the bottom plate 3. When the side plate 6 is disposed along the inner surface of the one long side plate 5, the opening 5a of the one long side plate 5 can be closed.

  Next, the usage method of the folding container 1 comprised in this way is demonstrated.

  First, in the assembled state of the container 1 shown in FIG. 1, after the side plate 6 is placed on the surface of the accommodating portion 31 of the bottom plate 3 (in the one-dot chain line state in FIG. 1), Is pushed inward, and each short side plate 4 is flipped up with respect to the upper frame 2. At this time, since the lower end surface of the short side plate 4 is located slightly above the surface of the side plate 6 placed on the surface of the accommodating portion 31 of the bottom plate 3, the short side plate 4 is not interfered with the side plate 6. It can be rotated.

  After the short side plate 4 is flipped inward, if the connecting portion of the upper long side plate 51 and the lower long side plate 52 constituting the long side plate 5 is pushed inward, between the upper frame 2 and the bottom plate 3 The upper long side plate 51 and the lower long side plate 52 of each long side plate 5 are bent in a square shape and folded in half. That is, the upper long side plate 51 rotates inward with respect to the long side frame member 22 of the upper frame 2, and the lower long side plate 52 rotates inward with respect to the long side side peripheral portion of the bottom plate 3. The upper long side plate 51 and the lower long side plate 52 which are folded in two on the side plate 6 placed on the receiving portion 31 of the bottom plate 3 are stacked and stored, and further, the upper frame body 2 is mounted on the peripheral portion 32 of the bottom plate 3. Can be folded into a small volume as shown in FIG. At this time, the short side plates 4 are stacked on the long side plate 5 folded in half on the inner side defined by the upper frame body 2.

On the other hand, when the folding container 1 is used, if the upper frame 2 is grasped and lifted upward from the folded state shown in FIG. 5, the upper long side plate 51 of the long side plate 5 connected to the upper frame 2 is Followed up. The lower long side plate 52 connected to the upper long side plate 51 also extends so as to gradually increase the rotation angle with respect to the upper long side plate 51, and is pulled up following. At this time, since the long side plate 5 supporting the short side plate 4 extends, the short side plate 4 rotates downward by its own weight. Thereafter, when the lower inner surface side of each short side plate 4 is pressed outward, its lower end surface rides on the short side peripheral portion of the bottom plate 3, and the outer surface lower end portion comes into contact with the rising piece 321. Thus, the inner surface can be erected so as to form a vertical surface. Then, by turning the short side plate 4, the left and right side end surfaces support the inner surface of the long side plate 5 and restrict the bending of the long side plate 5, and the left and right sides of the upper long side plate 51 of the long side plate 5. The fitting ribs 4c of the short side plate 4 are fitted to the fitting ribs 5b formed on the left and right edges of the end edge and the lower long side plate 52, respectively, and the bottom plate 3 In addition to frictional resistance due to fitting of the lower end surface of the short side plate 4 to the peripheral edge of the short side, the frictional resistance due to fitting of the fitting rib 4c of the short side plate 4 to the rib 5b of the long side plate 5 can be prevented. it can.

  When the container 1 is assembled, if the side plate 6 is inserted along the inner surface of one long side plate 5, its left and right end edges and lower end edge are the engagement projections 4x of the short side plate 4 and the engagement projections 3x of the bottom plate 3. Therefore, the side plate 6 is held in an upright state with the falling of the side plate 6 regulated. Therefore, the opening 5 a of one long side plate 5 can be closed by the side plate 6.

  Therefore, articles can be accommodated inside through the upper opening of the container 1, and the containers 1 containing articles can be stacked and stored or transported (see FIG. 6). At this time, since the left and right end surfaces of the side plate 6 are in contact with the inner surface of the short side plate 4 and the jumping of the short side plate 4 can be restricted, the load of the container 1 stacked by unintentional jumping of the short side plate 4 is avoided. Breakage can be reliably prevented.

  On the other hand, if the side plate 6 is pulled up after the article is transported to the destination, the opening 5a of the one long side plate 5 can be opened, and then the opened opening in the state where the containers 1 are stacked. The article can be taken out through 5a (see FIG. 7). In this case, the side plate 6 pulled up along the one long side plate 5 is inserted in the same manner along the inner surface of the other long side plate 5, thereby engaging the engagement projection 3 x of the bottom plate 3 and the engagement projection 4 x of the short side plate 4. Therefore, it is possible to prevent the side plate 6 from being lost. In addition, since the left and right end surfaces of the side plate 6 abut against the inner surface of the short side plate 4 and the short side plate 4 can be prevented from jumping up, it is ensured that the stacked containers 1 collapse due to unintentional jumping of the short side plate 4. Can be prevented.

  When the container 1 is collected after the article has been taken out, as described above, after placing the side plate 6 on the surface of the accommodating portion 31 of the bottom plate 3, the lower portions on the outer surface side of the pair of short side plates 4 are placed inside. If the short side plate 4 is pushed up toward the upper frame 2 and then the short side plate 4 is flipped up, and then the connecting portion of the upper long side plate 51 and the lower long side plate 52 constituting the long side plate 5 is pushed inward. The upper long side plate 51 and the lower long side plate 52 of each long side plate 5 are bent in a square shape and folded in half between the upper frame 2 and the bottom plate 3 and stacked on the side plate 6. Further, the short side plates 4 are stacked, and the upper frame 2 can be stacked and folded on the peripheral edge 32 of the bottom plate 3 (see FIG. 5).

  Therefore, when recovering the empty container 1, the volume can be reduced and transported, and transport efficiency can be improved.

  By the way, other embodiment of the folding container 1 of this invention is described by FIG. 8 and FIG.

  The folding container 1 is configured by further providing a lid 7 that can open and close the upper opening of the folding container 1 described above.

  That is, a plurality of hinge brackets 22b are formed at the upper ends of the long-side frame members 22 in the upper frame 2 constituting the container 1, and pin holes (not shown) of the hinge brackets 22b are formed. On the other hand, the lid body 7 is rotatably connected via a hinge pin 7a.

  In addition, the upper end portion of the side plate 6 held upright along the inner surface of the long side plate 5 by the engagement projection 3x of the bottom plate 3 and the engagement projection 4x of the short side plate 4 is locked to the inner surface of the lid body 7. A locking piece 7x is formed as a possible locking portion. When the lid 7 is rotated to close the upper opening of the container 1, the upper end of the side plate 6 is locked by the locking piece 7x. It is possible to reliably prevent the side plate 6 from rattling when the container 1 is transported.

  Further, a plurality of stacking projections 21b are formed at the upper end of each short side frame member 21 in the upper frame 2, and the hinge bracket formed at the upper end of each long side frame member 22 described above. Together with 22b, the container 1 can be prevented from falling off when the containers 1 are stacked. Specifically, on the outer surface of the bottom plate 3, a rib 3a having an outer peripheral surface corresponding to a square defined by the stack projections 21b of the short side frame members 21 and the inner surface of the hinge bracket 22b of the long side frame members 22 is provided. (See FIG. 9) is vertically provided, and when the containers 1 are stacked up and down, the stack projections 21b of the short side frame members 21 and the hinges of the long side frame members 22 are formed on the outer surfaces of the ribs 3a of the bottom plate 3. Each of the inner surfaces of the brackets 22b is positioned, and the outer peripheral side peripheral portion of the bottom plate 3 of the upper container 1 is set on the upper surface thereof.

  Accordingly, the opening 5a of one long side plate 5 is closed by the side plate 6, while the article is accommodated in the inside, and then the upper opening of the container 1 is closed by the lid body 7 and is stacked toward the destination. It can be transported or stored (see FIG. 10). In this case, although not shown in detail, there is no opening by combining the lid body 7 with the upper frame body 2, and the flipping of the short side plate 4 is restricted by the side plate 6, Theft of goods can be avoided, which is preferable for crime prevention.

  Further, if the side plate 6 is pulled up after the article is transported to the destination, the opening 5a of one long side plate 5 can be opened, and the article can be taken out through the opened opening 5a (FIG. 11). reference). At this time, the side plate 6 may be inserted and held along the inner surface of the other long side plate 5.

  Although not shown in detail, when collecting the empty container 1, it is the same in that it is folded and transported.

  As described above, according to the present invention, containers can be assembled to store articles, stored and transported in a stacked state, and articles can be taken out through the opening. It becomes possible to do. Moreover, it is only necessary to add a simple configuration, and the folding container can be provided at a low cost.

It is a perspective view which shows one Embodiment of the folding container of this invention. It is the top view which abbreviate | omits and shows the bottom plate of the container of FIG. 1, the AA sectional view, and the BB sectional drawing. It is the front view which abbreviate | omits some short side plates of the container of FIG. 1, and shows the CC sectional view. It is a cross-sectional view which abbreviate | omits and partially shows the container of FIG. It is a perspective view explaining the state which folded the container of FIG. It is a perspective view explaining the state which uses the container of FIG. 1 as a transport container. It is a perspective view explaining the state which uses the container of FIG. 1 as a picking container. It is a perspective view which shows other embodiment of the folding container of this invention. It is the DD sectional view taken on the line of FIG. It is a perspective view explaining the state which uses the folding container of FIG. 8 as a transport container. It is a perspective view explaining the state which uses the folding container of FIG. 8 as a picking container. It is a perspective view which shows the conventional folding container. It is a perspective view which shows the engagement state of the short side board and bottom board in the conventional folding container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Folding container 2 Upper frame 21 Short side frame material 22 Long side frame material 3 Bottom plate 31 Storage part 32 Peripheral part 3x Engagement protrusion (engagement part)
4 Short side plate 4x Engagement protrusion (engagement part)
5 Long side plate 51 Upper long side plate 52 Lower long side plate 6 Side plate 7 Lid

Claims (4)

  An upper frame made of a pair of opposing short side frame members and long side frame members, a bottom plate made of a rectangular housing portion and a peripheral portion formed integrally with the periphery thereof, and each short side frame member of the upper frame body A pair of short side plates whose upper ends are connected to the lower end of each of the upper side plates, and a lower end portion of the upper long side plate and an upper end portion of the lower long side plate are connected to each other in a foldable manner. A pair of upper end portions of each upper long side plate rotatably connected to the lower end portion of the frame member, and a lower end portion of each lower long side plate rotatably connected to each of the long side side peripheral portions of the bottom plate. In the folding container composed of the long side plate, an opening is formed in one of the long side plates, and the long side side edge portions of the bottom plate housing portion surface and the left and right edge portions of the short side plate inner surfaces Each of which has an engaging portion formed at an edge portion on the side facing the long side plate. Te becomes, folding, characterized in that the side plate plugged along the inner surface of the long side plates is retained by the engagement portion of the engagement portion and the short side plate of the bottom plate to the upright position the container.   The folding container according to claim 1, wherein the side plate can be placed on the surface of the receiving portion of the bottom plate without interfering with the rotation operation of the short side plate.   The folding container according to claim 1, wherein a lid body is rotatably connected to an upper end portion of each long side frame member of the upper frame body. The folding container according to claim 3, wherein a locking portion capable of locking the upper end portion of the side plate inserted along the inner surface of the long side plate is formed on the inner surface of the lid.

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