JP2013001404A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding container which can surely suppress the backlash of stored articles while enabling the appropriate folding of sidewalls.SOLUTION: The folding container 1 has a bottom wall 2 nearly in the shape of a rectangular sheet and sidewalls 3 and 4 rotatably connected with a base 6 and base 7 projecting upward along lateral sides. The sidewalls 3 are provided with holding members 31 projecting from internal surfaces of the sidewalls 3. The holding members 31 are constituted to be rotated and displaced between a use position where they are extended vertically across the sidewalls 3 and the base 6 and a storage position where they are arranged face to face with only the internal surfaces of the sidewalls 3 when the sidewalls 3 are erecting positions.

Description

  The present invention relates to a folding container used for transporting articles.

  2. Description of the Related Art Conventionally, a substantially rectangular plate-shaped bottom wall portion and a side wall portion rotatably connected to each side portion of the bottom wall portion are provided, and each side wall portion is overlapped above the bottom wall portion. Folding containers that can be folded inward are known. Furthermore, there is a technique in which a holding portion that protrudes from the inner surface side of the side wall portion is provided, the article stored in the folding container is held by the holding portion, and rattling of the article is suppressed (see, for example, Patent Document 1). ).

JP 2005-14980 A

  However, the holding part described in Patent Literature 1 is provided only corresponding to a part of the height direction of the side wall part (side wall plate), for example, a state in which a plurality of articles are stacked up and down. When the container is transported by being accommodated in the folding container, there is a possibility that the effect of suppressing the rattling of the article at the holding portion may not be sufficiently achieved. Moreover, since the holding | maintenance part of patent document 1 is provided in the inner member comprised so that folding was possible separately from a side wall part, there exists a possibility of causing the fall of workability | operativity at the time of assembling or folding a folding container. is there.

  The present invention has been made in order to solve the above-described problems, and the object thereof is a folding container that can more reliably suppress the looseness of the accommodated articles while realizing suitable folding of the side wall. Is to provide.

  In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to a corresponding means are added as needed.

Means 1. A substantially rectangular plate shape, and a bottom wall portion having a base portion protruding upward along each side portion, and a side wall portion rotatably connected to each of the base portions,
Each of the side wall portions is a folding container configured to be rotatable and displaceable between an upright position standing above the base portion and a laying position folded above the bottom wall portion,
A holding member that is provided so as to be rotatable with respect to one of the side wall part and the base part, and protrudes from the inner surface of the side wall part and the base part when the side wall part is in the upright position,
The holding member has a use position that extends so as to straddle the side wall part and the base part when the side wall part is in the standing position, and one of the side wall part and the base part. A folding container characterized in that it is configured to be rotatable and displaceable between a storage position opposed to the inner surface only.

  According to the means 1, the holding member can be extended up and down across the side wall portion and the base portion by setting the side wall portion to the standing position and the holding member to the use position. Therefore, the holding member protruding from the inner surface of the side wall portion and the base portion supports the outer peripheral surface of the article accommodated in the folding container, and can prevent displacement in the horizontal direction. In particular, since the holding member can be extended without a break from the side wall portion to the base portion, for example, when a plurality of articles are stacked and accommodated in the folding container, only the items positioned above the lower side portion of the side wall portion. In addition, the article positioned below the lower side part of the side wall part can be reliably held so that the holding member directly touches the article of each step. Therefore, rattling or tilting of the articles accommodated in the folding container can be prevented more reliably.

  Furthermore, since the holding member is placed in the storage position, the holding member is brought closer to one side of the side wall portion and the base portion and does not straddle the boundary portion between the side wall portion and the base portion. It can be rotated and folded. Therefore, the side wall portion can be reliably folded even if the holding member is brought into contact with each stage of the articles stacked in the vertical direction and accommodated in the folding container.

  For example, when the holding member is configured to be extendable in the height direction of the side wall, a step may be formed on the outer surface of the holding member, but the holding member is rotated as in this means. By adopting a configuration for displacing, it is possible to configure (on the same level) that a step is not formed on the outer surface of the holding member while securing the length of the holding member. Therefore, the article accommodated in the folding container can be supported on a flat surface without a step, and rattling of the article can be more reliably suppressed. Furthermore, since a configuration for expanding and contracting the holding member is unnecessary, the configuration can be simplified.

Mean 2. The holding member includes a shaft protrusion and a guide protrusion protruding from one side surface,
One of the side wall portion and the base portion is formed with a bearing hole that pivotally supports the shaft protrusion and a guide slit that is formed along an arc centered on the bearing hole and that can be inserted through the guide protrusion. And
The holding member is configured to be rotatable around the shaft protrusion pivotally supported in the bearing hole while the guide protrusion is guided by the guide slit,
The bearing hole and the guide slit, when the holding member is in the use position, a first locking recess through which the shaft protrusion and the guide protrusion are inserted by displacing the holding member downward; A second locking recess through which the shaft projection and the guide projection are inserted by displacing the holding member along the longitudinal direction of the holding member when the holding member is in the storage position; The folding container according to claim 1, wherein the folding container is provided.

  According to the means 2, in the holding member, the shaft protrusion is pivotally supported by the bearing hole, and the guide protrusion is guided to the guide slit when the holding member rotates. For this reason, while improving the stability at the time of rotation of a holding member, the burden of the axial protrusion which supports a holding member can be reduced, and deterioration, damage, etc. of an axial protrusion can be suppressed. Further, by inserting the shaft protrusion and the guide protrusion into the first locking recess and the second locking recess formed in the bearing hole and the guide slit, the rotational displacement of the holding member set to the use position and the storage position can be reduced. Can be prevented. Therefore, it is possible to more reliably position the holding member in the use position and the storage position.

  Furthermore, the holding member can be configured to be held at the storage position only by extending the bearing hole and the guide slit laterally (forming a horizontal hole). For this reason, it is possible to simplify the configuration for holding the holding member at the storage position.

  Means 3. 3. The means 1 or 2 according to claim 1, wherein the holding member includes a locking protrusion that is locked to a drain hole formed in the bottom wall portion when the holding member is in the use position. Folding container.

  According to the means 3, the holding member is provided with a locking projection that is locked to the drain hole in the bottom wall portion when the holding member is in the use position, and is used while suppressing the complexity of the configuration. The backlash of the holding member itself at the position can be suppressed. When the configuration of the above means 2 is adopted, the holding member can be brought closer along the direction orthogonal to the bottom wall portion, so that the locking protrusion can be easily inserted into the drain hole, and the stopping protrusion It is possible to suppress damage to the locking projections caused by forcibly screwing the water into the drain hole.

It is a perspective view of the folding container in an assembly state. It is a perspective view of the folding container which exists in an assembly state and has a holding member in a storage position. It is a perspective view of the folding container in a folded state. It is a side view which shows the outer surface side of a long side wall part. It is a perspective view of a holding member. It is a perspective view containing the partial cross section of a folding container. It is a perspective view containing the partial cross section of a folding container. It is a perspective view of the folding container in which articles | goods were accommodated.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1 and the like, the folding container 1 has a substantially rectangular plate-like bottom wall portion 2 and a long side that is rotatably provided corresponding to a pair of opposed long side portions of the bottom wall portion 2. The side wall part 3 and the short side wall part 4 provided so as to be rotatable respectively corresponding to a pair of opposing short side parts of the bottom wall part 2 are provided. In this embodiment, the bottom wall part 2, the long side wall part 3, and the short side wall part 4 are made of polypropylene.

  As shown in FIG. 3, the bottom wall portion 2 includes a long side base portion 6 protruding upward from the bottom wall portion 2 along each long side portion, and a bottom wall portion 2 along each short side portion. A short-side base portion 7 protruding upward is provided. In the present embodiment, the long side wall portion 3 and the short side wall portion 4 are rotatably connected to the long side base portion 6 and the short side base portion 7, respectively. , 7 is configured to be rotatable and displaceable between an upright position erected above 7 and a sleeping position that is folded above the bottom wall 2 and extends in parallel with the bottom wall 2. .

  As shown in FIG. 3, FIG. 7, etc., each long side base portion 6 includes an inner wall portion 11 that extends upward from the long side portion of the bottom wall portion 2, and an upper portion that extends outward from the upper edge portion of the inner wall portion 11. The wall portion 12 and an outer wall portion 13 that extends downward from the outer edge portion of the upper wall portion 12 are provided, and has a substantially U-shaped cross section opened downward. Further, each long side base portion 6 is provided with a bearing portion 15 for rotatably supporting the long side wall portion 3. The bearing portion 15 is provided with a pair of connecting wall portions 16 that connect the inner wall portion 11 and the outer wall portion 13 so as to face each other in the extending direction of the base portions 6 and 7, and between the pair of connecting wall portions 16. The upper wall portion 12 is cut out and the inner wall portion 11 is cut away so as to leave a connecting portion with the connecting wall portion 16, and the remaining inner wall portion 11 is directed from the upper side portion toward the outer wall portion 13 side. It is configured by providing a protruding hook portion (not shown).

  Further, as shown in FIG. 3, each of the short side base portions 7 also has an inner wall portion 11 extending in parallel with each other along the short side portion of the bottom wall portion 2, although the upper wall portion 12 is omitted. In addition to the outer wall portion 13, a bearing portion 15 that is partitioned by a connecting wall portion 16 and includes a hook portion 17 is provided.

  The protrusion length from the bottom wall part 2 of the short side base part 7 of this embodiment is shorter than the protrusion length from the bottom wall part 2 of the long side base part 6. Moreover, the short side base part 7 is provided so that the inner surfaces of a pair of opposing long side base part 6 may be connected. Further, a deviation preventing projection 18 is formed that protrudes from the inner wall portion 11 in the vicinity of both ends of each long side base portion 6 to above the short side base portion 7. The inner surface of the deviation preventing projection 18 is flush with the inner surface of the inner wall 11 of the short side base 7.

  As shown in FIG. 6, FIG. 7, etc., the bottom wall 2 of the present embodiment includes a bottom plate 2a in which openings that penetrate vertically in a grid pattern are formed, and each opening formed in the bottom plate 2a. And a grid-like bottom rib 2b extending downward from the peripheral edge portion. The bottom rib 2b is formed over the entire range on the inner peripheral side of the frame-shaped portion constituted by the base portions 6 and 7. Further, the lower edge portion of the outer wall portion 13 of the base portions 6 and 7 is substantially the same height as the lower surface of the bottom plate 2a of the bottom wall portion 2, and is located above the lower edge portion of the bottom rib 2b. ing. In the present embodiment, each opening formed in a grid pattern in the bottom plate 2a corresponds to a drain hole.

  As shown in FIGS. 1, 4, 6, etc., the long side wall 3 and the short side wall 4 have a substantially rectangular width substantially the same as the long side base 6 or the short side base 7. The plate-shaped wall main body 21 and the hinge part 23 which protrudes from the lower side part (The surface which faces the lower side in the standing position and faces the outer peripheral side of the bottom wall part 2 in the sleeping position) are provided. Further, on the outer surface of the wall main body 21, reinforcing ribs 24 are appropriately formed so as to project outward along at least the outer peripheral edge of the wall main body 21, whereby the long side wall 3 and the short side wall are formed. The thickness of the part 4 is configured to be substantially the same as the thickness of the long side base part 6 or the short side base part 7.

  As shown in FIG. 4 and the like, the hinge portion 23 is directed downward from a portion constituting the lower side portion of the side wall portions 3 and 4 in the standing position among the reinforcing ribs 24 formed along the outer periphery of the wall main body 21. A substantially rod-like connecting portion 25 extending vertically and a pair of shaft portions 26 projecting along the longitudinal direction of the side wall portions 3 and 4 from both side surfaces of the distal end portion of the connecting portion 25, respectively, are substantially T It has a letter shape. And the shaft part 26 of the hinge part 23 of the long side wall part 3 and the short side wall part 4 is inserted into the bearing part 15 of the long side side base part 6 or the short side side base part 7, respectively. The shaft portion 26 is located on the lower surface side of the hook portion 17 of the bearing portion 15 and is pivotally supported. Thereby, each side wall part 3 and 4 is connected with respect to the base parts 6 and 7 so that rotation is possible.

  As shown in FIG. 1 and the like, in this embodiment, the bearing portion 15 (the rotation center of the long side wall portion 3) of the long side side base portion 6 is the bearing portion 15 (short side) of the short side side base portion 7. It is provided at a position higher than the rotation center of the side wall portion 4. For this reason, unless the short side wall part 4 is folded first, the long side wall part 3 cannot be folded. Therefore, as shown in FIGS. 3, 7, etc., in the state in which the folding container 1 is folded (the non-use state in which all the side wall portions 3, 4 are laid down parallel to the bottom wall portion 2), the long side wall The part 3 is folded so as to overlap the upper side of the short side wall part 4. In addition, as shown in FIG. 1, when the folding container 1 is assembled in a box shape that opens upward (use state in which all the side wall portions 3 and 4 are in an upright position), It is comprised so that an upper surface may become substantially flush.

  The vertical width of the wall body 21 of the long side wall 3 is slightly shorter than half the distance between the pair of long sides 6. Furthermore, the vertical width of the wall body 21 of the short side wall 4 is shorter than half the distance between the pair of short sides 7.

  In addition, as shown in FIG. 3 and FIG. 7, when the long side wall 3 is folded, the protrusions are provided in the vicinity of both ends of the lower side of the wall body 21 of the long side wall 3. A slip prevention recess 28 into which 18 is inserted is formed. Thereby, the shift | offset | difference movement in the horizontal direction of the long side wall part 3 folded above the short side wall part 4 can be prevented more reliably.

  The long side wall 3 is positioned below the upper surface of the long side base 6 when in the laying position. For this reason, when the folded containers 1 in a folded state are stacked up and down (stacked), the lower surface of the upper folding container 1 is supported by the upper surface of the long side base portion 6 of the lower folding container 1. The four corners of the outer peripheral surface of the bottom rib 2b of the upper folding container 1 are positioned so as to be substantially in contact with the corner portions formed by the respective deviation preventing projections 18 and the long side base portion 6 of the lower folding container 1. The Therefore, the folded containers 1 in the folded state can be stably stacked.

  Further, even when all the side wall parts 3 and 4 are erected and used in a box shape, when the folding container 1 is stacked, the upper side folding container 1 is moved by the upper side part of the side wall parts 3 and 4 of the lower folding container 1. 1 is supported, and the bottom rib of the upper folding container 1 enters the inner circumferential side of the side walls 3 and 4 of the lower folding container 1 for positioning. Therefore, the folding containers 1 in use can be stably stacked.

  As shown in FIGS. 1 and 2, etc., in this embodiment, the long side wall 3 is provided so as to be rotatable with respect to the long side wall 3 and the long side wall 3 is in the standing position. A substantially rectangular parallelepiped holding member 31 protruding from the inner surfaces of the side wall 3 and the long side base 6 is provided. When the long side wall portion 3 is in the standing position, the holding member 31 has a use position that extends so as to straddle the long side wall portion 3 and the long side base portion 6 and the long side wall portion 3 It is comprised so that rotation displacement is possible between the accommodation positions facing and arrange | positioned only with respect to the inner surface of the side wall part 3. FIG.

  As shown in FIG. 5, the holding member 31 includes a shaft protrusion 32 and a guide protrusion 33 that protrude from one side surface that faces the inner surface of the long side wall portion 3. The shaft protrusion 32 and the guide protrusion 33 each have a substantially circular cross section, and are provided with enlarged diameter portions 32a and 33a at the tip. In the present embodiment, the shaft protrusion 32 and the guide protrusion 33 are protrusions having the same shape, and the one provided near one end in the longitudinal direction of the holding member 31 is configured as the shaft protrusion 32, and the longitudinal direction of the holding member 31 is The one provided on the center side is configured as a guide protrusion 33. The shaft protrusion 32 and the guide protrusion 33 may be configured separately from the main body of the holding member 31 or may be configured integrally.

  On the other hand, as shown in FIG. 4 and the like, the long side wall 3 is formed along a bearing hole 41 that pivotally supports the shaft protrusion 32 and a quarter-circular arc centered on the bearing hole 41. A guide slit 42 through which the guide protrusion 33 can be inserted is formed. Basically, the widths of the bearing hole 41 and the guide slit 42 are larger than the base portions of the shaft protrusion 32 and the guide protrusion 33 (the portion between the enlarged diameter portions 32a and 33a). It is smaller than the enlarged diameter portions 32a and 33a. Then, the shaft protrusion 32 and the guide protrusion 33 are inserted through the bearing hole 41 and the guide slit 42, respectively, so that the holding member 31 has the shaft protrusion 32 and the shaft protrusion 32 and the guide protrusion 33 as the center of the bearing hole 41. And it is configured to be rotatable while being guided by the guide slit 42. Moreover, since the enlarged diameter parts 32a and 33a are located in the outer surface side of the wall main body 21 of the long side wall part 3, the holding member 31 is prevented from falling off.

  Furthermore, in this embodiment, when the holding member 31 is in the use position, as shown in FIGS. 1 and 6, the longitudinal direction of the holding member 31 is substantially vertical (the height direction of the long side wall portion 3). Extending along. For this reason, as shown in FIG. 8, when the articles (for example, lunch boxes) stacked in a plurality of stages are accommodated in the folding container 1 in a plurality of rows (three rows in this example), the outer peripheral surface and the long side wall The holding member 31 protrudes to the inside of the folding container 1 so as to fill a gap with the portion 3, and the article is positioned by the holding member 31. Thereby, it is possible to prevent (hold) the positional displacement of the articles in the horizontal direction, and avoid situations such as contact between the articles in each row.

  On the other hand, when the holding member 31 is in the storage position, as shown in FIG. 2, the longitudinal direction of the holding member 31 is in the horizontal direction (the lateral width direction of the long side wall portion 3 and the longitudinal direction of the long side base portion 6). Extending along. Then, by tilting the long side wall portion 3 inward with the holding member 31 in the storage position, the long side wall portion 3 does not interfere with the long side base portion 6 or the like without the holding member 31 interfering with the long side base portion 6 or the like. Can be folded until it is in the sleeping position.

  Further, as shown in FIG. 4 and the like, the bearing hole 41 and the guide slit 42 are inserted into the shaft protrusion 32 and the guide protrusion 33 by displacing the holding member 31 downward when the holding member 31 is in the use position. When the first locking recess 44 and the holding member 31 are in the storage position, the shaft protrusion 32 and the guide protrusion 33 are inserted by displacing the holding member 31 along the longitudinal direction of the holding member 31. And a second locking recess 45. That is, when the shaft protrusion 32 and the guide protrusion 33 are inserted through the first locking recesses 44 of the bearing hole 41 and the guide slit 42, respectively, the displacement in the direction other than the upward direction of the holding member 31 is restricted, and the holding member 31 Is held at the use position. On the other hand, when the shaft protrusion 32 and the guide protrusion 33 are respectively inserted into the second locking recesses 45, the rotational displacement of the holding member 31 toward the use position is restricted, and the holding member 31 is held at the storage position. It will be.

  In addition, as shown in FIG. 6, the holding member 31 includes a locking protrusion 34 that protrudes from a surface that forms a lower surface when the holding member 31 is in the use position. Then, the shaft protrusion 32 and the guide protrusion 33 are inserted into the first locking recess 44 of the bearing hole 41 and the guide slit 42 with the holding member 31 as the use position, thereby opening the opening ( The locking projection 34 is configured to fit into the drain hole).

  In the present embodiment, the holding member 31 is positioned above the outer surface of the short side wall 4 in the folded state of the folding container 1. In the present embodiment, two holding members 31 are provided at equal positions corresponding to the long side wall portions 3. Further, the long side wall portion 3 has a symmetrical shape with the central portion in the longitudinal direction as the center, and the bearing hole 41 and the guide slit 42 also have a symmetrical shape. In addition, the holding members 31 provided in the pair of opposing long side wall portions 3 are provided at positions facing each other.

  As described above in detail, according to the present embodiment, the long side wall 3 is in the upright position, and the holding member 31 is in the use position, so that the holding member 31 is in the long side wall 3 and the long side. It can straddle the base portion 6 and extend up and down. Therefore, the holding member 31 protruding from the inner surfaces of the long side wall 3 and the long side base 6 supports the outer peripheral surface of the article accommodated in the folding container 1 to prevent horizontal displacement. Can do. In particular, since the holding member 31 can extend without a break from the long side wall portion 3 to the long side base portion 6, for example, when a plurality of articles are stacked and stored in the folding container 1, the long side In addition to the article positioned above the lower side of the side wall 3, the holding member 31 is also in direct contact with the article of each step for the article positioned below the lower side of the long side wall 3. It can be held securely. Therefore, rattling or tilting of the articles accommodated in the folding container 1 can be more reliably prevented.

  Further, by setting the holding member 31 to the storage position, the holding member 31 is brought close to the long side wall portion 3 side and straddles the boundary between the long side wall portion 3 and the long side base portion 6 in the vertical direction. Therefore, it is possible to fold the long side wall 3 by turning it inward. Therefore, even if the holding member 31 is brought into contact with each stage of the articles stacked in the vertical direction and accommodated in the folding container 1, the long side wall 3 can be reliably folded. .

  Further, for example, when the holding member 31 is configured to be extendable in the height direction of the long side wall 3, a step may be formed on the outer surface of the holding member 31, as in the present embodiment. In addition, by adopting a configuration in which the holding member 31 is pivotally displaced, it is possible to configure the step so that no step is formed on the outer surface of the holding member 31 while keeping the length of the holding member 31 (on the same plane). . Therefore, the article accommodated in the folding container 1 can be supported on a flat surface without a step, and rattling of the article can be more reliably suppressed. Furthermore, since a configuration for expanding and contracting the holding member 31 is unnecessary, the configuration can be simplified.

  In the holding member 31, the shaft protrusion 32 is supported by the bearing hole 41, and the guide protrusion 33 is guided to the guide slit 42 when the holding member 31 rotates. For this reason, while improving the stability at the time of rotation of the holding member 31, the burden of the axial protrusion 32 which supports the holding member 31 can be reduced, and deterioration, damage, etc. of the axial protrusion 32 can be suppressed. Further, the shaft protrusion 32 and the guide protrusion 33 are inserted into the first locking recess 44 and the second locking recess 45 formed in the bearing hole 41 and the guide slit 42, thereby holding the use position and the storage position. The rotational displacement of the member 31 can be prevented. Accordingly, the holding member 31 that is set to the use position and the storage position can be positioned more reliably.

  Furthermore, the holding member 31 can be configured to be held at the storage position by simply extending the bearing hole 41 and the guide slit 42 laterally (forming a horizontal hole). Therefore, it is possible to simplify the configuration for holding the holding member 31 at the storage position.

  In addition, the holding member 31 is provided with a locking protrusion 34 protruding from the lower surface, and when the holding member 31 is in the use position, the locking protrusion 34 is an opening of the bottom plate 2a of the bottom wall 2. It is designed to be locked to (water drain hole). For this reason, it is possible to suppress backlash of the holding member 31 itself at the use position while suppressing the complication of the configuration. Further, as described above, when the holding member 31 is in the use position, the shaft protrusion 32 and the guide protrusion 33 are inserted into the first locking recesses 44 of the bearing hole 41 and the guide slit 42. However, during the insertion operation, the holding member 31 in the vertically extending posture is slid and displaced straight downward, so that the locking protrusion 34 can be easily inserted into the drain hole, and the locking protrusion 34 is It is possible to suppress damage or the like of the locking protrusion 34 caused by forcibly screwing into the punched hole.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the said embodiment, in the state which folded the side wall parts 3 and 4, the long side wall part 3 has overlapped with the long side wall part 3 on the upper side, and the short side wall part 4 has overlapped on the lower side. You may comprise so that the part 3 may be on the lower side and the short side wall part 4 may overlap on the upper side. Moreover, in the said embodiment, although the holding member 31 is provided only in the long side wall part 3, in addition to or instead of the holding member 31 of the long side wall part 3, the short side wall part 4 is provided. It is good also as providing the holding member 31 in this. Furthermore, in the said embodiment, although the holding member 31 is provided in the opposing position in a pair of opposing long side wall part 3, and each long side wall part 3 is also provided in the equal position, the holding member 31 is provided. There are no particular restrictions on the arrangement, number, etc. of these, and they are appropriately set according to the articles to be accommodated. For example, the holding member 31 may be provided only on one of the long side wall portions 3, and the positions of the holding members 31 provided in the pair of long side wall portions 3 are the positions of the long side wall portions 3. It may be displaced in the longitudinal direction.

  (B) In the above embodiment, the holding member 31 is pivotally supported with respect to the long side wall 3, but may be configured to be pivotally supported on the long side base 6. However, in this case, since the long side base portion 6 is increased in size and the folding container 1 may not be folded in a compact manner, it is desirable to provide the side wall portion 3 as in the above embodiment.

  Further, the arrangement of the shaft protrusion 32 and the guide protrusion 33 is not particularly limited. For example, the shaft protrusion 32 and the guide protrusion 33 may be configured to be rotatable about the protrusion configured as the guide protrusion 33 in the above embodiment. Good. Further, the guide protrusion 33 can be omitted. However, in this case, it is desirable to provide a configuration for holding the holding member 31 in place of the second locking recess 45 in the storage position. In addition, the first locking recess 44 and the locking protrusion 34 can be omitted, but it is desirable to provide at least one to hold the holding member 31 in the use position.

  (C) In the above embodiment, in the folded state of the folding container 1, the holding member 31 is positioned above the outer surface of the short side wall 4, but for example, the reinforcing rib 24 of the short side wall 4. A part of the holding member 31 may be accommodated on the inner peripheral side. In this case, the folding container 1 can be made compact. Moreover, in the said embodiment, the long side wall part 3 makes symmetrical shape centering on a longitudinal direction center part, and a pair of holding member 31 provided in each long side wall part 3 is used position and storage position. Although it is configured to rotate in the reverse direction when it is displaced between the two, it may be configured to rotate in the same direction.

  (D) In the above embodiment, the folding container 1 is made of polypropylene, but may be made of other resin materials such as polyethylene, PET, and polyamide. For example, the material of the holding member 31 is not limited to resin, and for example, a sheet made of rubber and having fine irregularities formed on the surface of the holding member 31 may be attached. .

  DESCRIPTION OF SYMBOLS 1 ... Folding container, 2 ... Bottom wall part, 3 ... Long side side wall part, 4 ... Short side wall part, 6 ... Long side side base part, 7 ... Short side side base part, 31 ... Holding member, 32 ... Shaft protrusion, 33 ... guide protrusion, 34 ... locking protrusion, 41 ... bearing hole, 42 ... guide slit, 44 ... first locking recess, 45 ... second locking recess.

Claims (3)

A substantially rectangular plate shape, and a bottom wall portion having a base portion protruding upward along each side portion, and a side wall portion rotatably connected to each of the base portions,
Each of the side wall portions is a folding container configured to be rotatable and displaceable between an upright position standing above the base portion and a laying position folded above the bottom wall portion,
A holding member that is provided so as to be rotatable with respect to one of the side wall part and the base part, and protrudes from the inner surface of the side wall part and the base part when the side wall part is in the upright position,
The holding member has a use position that extends so as to straddle the side wall part and the base part when the side wall part is in the standing position, and one of the side wall part and the base part. A folding container characterized in that it is configured to be rotatable and displaceable between a storage position opposed to the inner surface only. The holding member includes a shaft protrusion and a guide protrusion protruding from one side surface,
One of the side wall portion and the base portion is formed with a bearing hole that pivotally supports the shaft protrusion and a guide slit that is formed along an arc centered on the bearing hole and that can be inserted through the guide protrusion. And
The holding member is configured to be rotatable around the shaft protrusion pivotally supported in the bearing hole while the guide protrusion is guided by the guide slit,
The bearing hole and the guide slit, when the holding member is in the use position, a first locking recess through which the shaft protrusion and the guide protrusion are inserted by displacing the holding member downward; A second locking recess through which the shaft projection and the guide projection are inserted by displacing the holding member along the longitudinal direction of the holding member when the holding member is in the storage position; The folding container according to claim 1, wherein the container is a folding container.   The said holding member is provided with the latching protrusion part latched by the drain hole formed in the said bottom wall part, when it is set to the said use position. Folding container.

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