JP6957017B2 - Transport unit - Google Patents

Description

The present invention relates to a transport unit including a folding container for accommodating articles and a pallet on which the folding container can be placed.

Conventionally, as a container used for transporting articles or the like, a bottom wall component having a substantially rectangular bottom wall portion and a base portion protruding upward along each side side portion of the bottom wall portion. And a side wall part that is rotatably connected to each base part, and is configured to be assembleable in a box shape that opens upward, and each side wall part is folded over the bottom wall part. Folding containers that can be folded are known.

In addition, some folding containers are configured so that the folding containers can be stably stacked (stacked) with each other. More specifically, when the folded containers in the assembled state are stacked on the bottom wall portion, the outer peripheral side portion of the bottom wall constituent portion of the upper folding container (hereinafter referred to as "outer peripheral corresponding portion"). (Referred to as) is designed to abut and support the upper side of the side wall of the lower folding container. Further, the bottom wall portion includes a support portion that projects downward from a portion on the inner peripheral side of the outer peripheral corresponding portion. When the folded containers in the assembled state are stacked, the support portion of the upper folding container is inserted (substantially fitted) into the inner peripheral side of the side wall portion of the lower folding container. Has been done.

Further, while providing a side wall side locking portion that protrudes upward from the upper side portion of the pair of long side side wall portions facing each other and extends along the lateral width direction of the long side side wall portion, the long side of the bottom wall portion is provided. There is a technique in which a bottom wall-side locking portion that protrudes downward from the outer peripheral corresponding portion corresponding to the side portion is provided so as to form a gap between the support portion and the support portion (see, for example, Patent Document 1 and the like). When such folding containers are stacked in an assembled state, the side wall locking portion of the lower folding container is inserted into the gap between the bottom wall side locking portion of the upper folding container and the support portion. NS. As a result, the displacement of the side wall locking portion of the lower folding container is regulated by the bottom wall side locking portion and the support portion of the upper folding container, and the side wall portion of the lower folding container becomes. It is possible to prevent a situation in which the folding container is tilted and displaced or deformed in the inner and outer peripheral directions.

In addition, when stacking the folding containers, if the relative position of the folding container placed on the upper side of the folded container in the assembled state deviates in the horizontal direction, the folding container placed on the upper side is placed on the lower side. It is slid to the upper side of the side wall of the folding container and slid (slide stack) until the relative positions match. At this time, as described above, the side wall side locking portion of the lower folding container is inserted into the gap between the bottom wall side locking portion of the upper folding container and the support portion. This makes it possible to perform slide stacking more smoothly and reliably.

In addition, pallets may be used when transporting a plurality of folding containers together. Generally, the pallet includes a plurality of pillars and an upper deck that connects the upper ends of the plurality of pillars, and a fork insertion portion into which a fork of a forklift or the like can be inserted is provided between the pillars. .. Further, there is a technique of providing an outer peripheral protrusion portion for preventing the load from falling off by projecting upward from the outer peripheral portion of the upper surface of the pallet (see, for example, Patent Document 2 and the like).

Japanese Unexamined Patent Publication No. 2001-335029 Japanese Unexamined Patent Publication No. 2003-170942

By the way, when the folding container of Patent Document 1 is placed on a pallet as in Patent Document 2, the outer surface of the bottom wall side locking portion of the folding container faces the inner peripheral side surface of the outer peripheral protrusion of the pallet. They are arranged relative to each other so that they can come into contact with each other. In particular, the outer surface of the bottom wall side locking portion has a bottom because it is necessary to form a gap between the bottom wall side locking portion and the support portion so that the side wall side locking portion can be inserted. It is configured to be flush with the outer surface of the bottom wall component including the wall part. With such a configuration, even if the folding container is placed close to the outer peripheral side of the pallet, the outer surface of the folding container is located on the inner peripheral side of the outer peripheral surface of the pallet.

Here, considering the space efficiency when transporting and storing the folding container using the pallet, the outer surface of the folding container placed on the pallet is located on the inner peripheral side of the outer peripheral surface of the pallet. , There is concern that the space above the pallet cannot be used effectively. Furthermore, if the outer dimensions of the pallet are specified, it is necessary to adjust the size etc. on the folding container side, and as described above, the outer surface of the folding container placed on the pallet is the pallet. There is a concern that the capacity of the folding container may be reduced by making the folding container smaller by the amount located on the inner peripheral side of the outer peripheral surface.

The present invention has been made to solve the above-exemplified problems and the like, and an object of the present invention is to improve transportation efficiency when a folding container is placed on a pallet and transported. To provide the unit.

Hereinafter, each means suitable for solving the above-mentioned objectives and the like will be described separately for each item. In addition, if necessary, the action and effect peculiar to the corresponding means will be added.

Means 1. A bottom wall portion having a substantially rectangular shape in a plan view, and a bottom wall constituent portion having a base portion protruding upward along each side portion of the bottom wall portion.
With respect to each base portion of the bottom wall constituent portion, a rotatably displaceable connection is made between an upright position erected above each base portion and a laying position laid above the bottom wall portion. Folding container with side wall and
A plurality of pillars and an upper deck connecting the upper ends of the plurality of pillars are provided, and the pillars and the upper surface of the upper deck form a mounting surface on which the folding container can be placed. In a transport unit with a pallet to be
The pallet protrudes upward from the outer peripheral portion of the above-described mounting surface, and includes an outer peripheral protrusion portion for preventing the folding container mounted on the previously described mounting surface from falling off.
The folding container is configured so that the folding containers in an assembled state in which at least all the side wall portions are in the upright position can be stacked up and down.
At least a pair of the side wall portions facing each other include a side wall side locking portion that projects upward from the upper side portion of the side wall portion and extends along the lateral width direction of the side wall portion.
The bottom wall portion is a portion of the bottom wall portion that is supported by abutting the upper side portion of the side wall portion of the folding container on the lower side when the folding containers in the assembled state are stacked. It has a support part that protrudes downward from the part on the inner circumference side of the corresponding part.
The bottom wall component corresponds to the outer periphery so that a gap is formed between the bottom wall component and the support portion below the base portion connected to the side wall portion provided with the side wall side locking portion. Equipped with a bottom wall side locking part that protrudes downward from the part
When the folding containers in the assembled state are stacked, the side wall side of the folding container on the lower side is in the gap between the bottom wall side locking portion of the folding container on the upper side and the support portion. The locking part is inserted,
When the folding container is placed on the pallet, it is installed corresponding to the range of the bottom wall-side locking portion of the folding container in which the outer peripheral protrusion is provided in the circumferential direction of the pallet. The transport unit characterized in that the bottom wall side locking portion faces the upper surface of the outer peripheral protrusion portion and is configured to be in contact with or close to each other.

According to the means 1, in the work of stacking (stacking) the folding containers up and down, the horizontal relative position of the folding container placed on the upper side of the folded container in the assembled state is the side wall locking portion. Even if the side wall is displaced in the horizontal width direction, the side wall of the lower folding container is locked in the gap between the bottom wall-side locking portion of the upper folding container and the support portion. By setting the portion to be inserted, the folding container placed on the upper side is slid to the upper side portion of the side wall portion of the lower folding container, and is relatively smooth until the relative positions match. It can be reliably slid (slide stack).

Then, according to the present means 1, even when the folding container provided with the bottom wall side locking portion is placed on the pallet, the bottom wall side locking portion of the folding container and the outer peripheral protrusion of the pallet are held. It can be arranged vertically, and the space above the outer peripheral protrusion of the pallet can also be used as an installation space for the folding container. Therefore, it is possible to improve the space efficiency when the folding container is placed on a pallet for transportation and storage.

Further, for example, when the outer dimensions of the pallet are specified, the folding container is made smaller so that the outer surface of the folding container placed on the pallet is located on the inner peripheral side of the outer peripheral surface of the pallet. It is possible to avoid a situation in which the capacity of the folding container is reduced. Therefore, it is possible to improve the transportation efficiency when the folding container is placed on the pallet and transported.

In addition, even if the folding container placed on the pallet is displaced relative to the pallet in the horizontal direction, the situation where the bottom wall side locking portion and the outer peripheral protrusion portion come into contact with each other in the horizontal direction is avoided. It has become like. For this reason, for example, the outer surface of the bottom wall side locking portion and the inner peripheral side surface of the outer peripheral protrusion strongly hit each other, so that the bottom wall side locking portion is deformed or damaged toward the support portion. It is possible to avoid the situation of doing so.

By providing the bottom wall side locking portion at a position displaced from the outer peripheral edge of the bottom wall portion to the inner peripheral side of the bottom wall portion by the thickness of the outer peripheral protrusion portion, the space above the outer peripheral protrusion portion can be folded. It can be used as a container installation space. However, in that case, since it is necessary to bring the outer surface of the bottom wall side locking portion closer to the support portion side, if the width of the outer peripheral corresponding portion is not changed, the bottom wall side locking portion may be thinned. Due to the narrowing of the gap between the bottom wall side locking part and the support part, the side wall side locking part may be thinned, and the strength of the bottom wall side locking part and the side wall side locking part may decrease. There is concern about inviting. On the other hand, if the width of the outer peripheral corresponding portion is widened, there is a concern that the strength of the bottom wall portion may decrease or the capacity of the folding container may decrease due to an increase in the thickness of the base portion. On the other hand, as in the present means 1, the bottom wall side locking portion can be arranged above the outer peripheral protrusion, so that the above concern can be dispelled, and the bottom wall side locking portion and the side wall side engaging portion can be dispelled. While ensuring the strength of the stop, it is possible to improve space efficiency when the folding container is placed on a pallet for transportation and storage.

Further, regarding the folding container placed directly on the pallet, even if the base portion located above the bottom wall side locking portion tries to tilt outward (lower side), the lower surface of the bottom wall side locking portion is the outer circumference. Since it is supported in contact with the upper surface of the protrusion, such tilting displacement can be prevented.

Means 2. The bottom wall component portion is included in the base portion connected to the side wall portion provided with the side wall side locking portion, in a range in which the bottom wall side locking portion is provided at least at a lower position. An inclined wall that diagonally connects the inner surface of the base portion and the upper surface of the bottom wall portion is provided .
The transport unit according to means 1 , wherein the bottom wall portion includes a thick bottom portion having a thickness larger than that of a general portion of the bottom wall portion at a portion adjacent to the lower end portion of the inclined wall portion.

According to the means 2, it is possible to prevent a situation in which the base portion connected to the side wall portion provided with the side wall side locking portion is tilted and displaced (particularly outward) or deformed. In particular, since the inclined wall is provided at a position corresponding to the bottom wall side locking portion, the bottom wall side locking portion may be displaced from the normal position due to displacement of the base portion or the like. The situation can be prevented more reliably. Therefore, due to the tilting displacement of the base portion to the outside, the relative positions of the bottom wall side locking portion and the outer peripheral protrusion portion are displaced (for example, the bottom wall side locking portion and the outer peripheral protrusion portion are displaced in the horizontal direction). It is possible to prevent situations such as contact (such as coming into contact).

Further, the displacement and deformation of the inclined wall can be more reliably prevented, and by extension, the displacement and deformation of the base portion connected to the inclined wall can be more reliably prevented. Therefore, it is possible for the upper Symbol operation effect is further achieved.

Means 3 . The previously described mounting surface of the pallet is a locking corresponding surface which is a portion of the outer peripheral surface of the supporting portion corresponding to the base portion connected to the side wall portion provided with the side wall side locking portion. A pallet-side backlash stop protrusion that can be in contact with the pallet is provided.
The locking surface of the folding container placed on the pallet and the backlash stop protrusion on the pallet side of the pallet are brought into contact with each other, so that the outside of the folding container placed on the pallet is brought into contact with each other. The transport unit according to means 1 or 2 , wherein the side surface and the outer peripheral surface of the pallet are substantially flush with each other.

According to the means 3 , the outer surface of the folding container and the outer peripheral surface of the pallet are substantially flush with each other, so that the stability and space efficiency when the folding container is transported and stored using the pallet are improved. Can be planned. Further, when the outer surface of the folding container and the outer peripheral surface of the pallet are substantially flush with each other, a gap is formed between the locking compatible surface of the support portion of the folding container and the outer peripheral protrusion of the pallet. Even if this is the case, it is possible to prevent the outer surface of the folding container from protruding outward from the outer peripheral surface of the pallet due to the backlash stop protrusion on the pallet side. Further, for example, by increasing the thickness of the outer peripheral protrusion that can face the locking compatible surface, the pallet is compared with a configuration in which a gap between the locking compatible surface of the support portion and the outer peripheral protrusion of the pallet is eliminated. It is possible to reduce the weight of the material and increase the amount of materials used.

It is a perspective view of the transport unit which carries a folding container placed on a pallet. It is a perspective view of the folding container in an assembled state. It is a perspective view of the folding container in a folded state. It is a partially enlarged perspective view which shows the lower surface side of a folding container. It is a perspective view including a partial cross section of a folding container. It is a perspective view of the bottom wall component part. It is a partially enlarged perspective view for demonstrating the positional relationship between the side wall part of the lower folding container and the bottom wall component part of the upper folding container in the state where the folding containers in the assembled state are stacked. It is a partially enlarged perspective view for demonstrating the positional relationship between the side wall portion of the lower folding container and the bottom wall component portion of the upper folding container when stacking the folded containers in the assembled state. It is a perspective view of a pallet. It is a partially enlarged perspective view including a partial cross section which shows the state which the folding container is placed on the pallet. It is a partially enlarged perspective view including a partial cross section which shows the state which the folding container is placed on the pallet. It is a partially enlarged perspective view including a partial cross section for explaining the positional relationship between the pallet side backlash stop protrusion of the pallet and the support part of the folding container placed on the pallet. It is a perspective view which shows the state which covered the folding container placed on a pallet with a lid member.

Hereinafter, one embodiment will be described with reference to the drawings. As shown in FIG. 1 and the like, the transport unit 1 has a box shape that opens upward, and includes a foldable container 2 that is foldable and a pallet 3 on which the foldable container 2 can be placed. As shown in FIGS. 2 and 6, the folding container 2 projects upward from the bottom wall portion 5 having a substantially rectangular shape in a plan view and along each long side portion of the bottom wall portion 5. A bottom wall constituent portion 4 including a long side base portion 6 and a short side base portion 7 projecting upward from the bottom wall portion 5 along each short side portion of the bottom wall portion 5 is provided. Further, as shown in FIGS. 2 and 3, the folding container 2 has a long side side wall portion 8 rotatably connected to each long side base portion 6 and each short side base portion 7. Each of the short side side wall portions 9 is rotatably connected to the side wall portion 9. The bottom wall constituent portion 4, the long side side wall portion 8, and the short side side side wall portion 9 of the present embodiment are made of polypropylene.

The long-side side wall portion 8 and the short-side side side wall portion 9 have an upright position standing above the long-side side base portion 6 and the short-side side base portion 7, respectively, and the center of the bottom wall portion 5. It is configured so that it can be rotatably displaced between the laying position and the laying position on the side of the part. Further, as shown in FIG. 6, the protruding length of the long side base portion 6 from the bottom wall portion 5 is longer than the protruding length of the short side base portion 7 from the bottom wall portion 5, and the long side is longer. The formation position of the long side bearing portion 11 for rotatably supporting the side side wall portion 8 is also higher than the formation position of the short side bearing portion 12 for rotatably supporting the short side side wall portion 9. It is located above. Further, as shown in FIG. 2, the lateral width of the long side side wall portion 8 is configured to be substantially the same as the longitudinal width of the bottom wall constituent portion 4, and the lateral width of the short side side wall portion 9 is a pair of long side bases. It is configured to be almost the same as the distance between the parts 6.

Therefore, in the present embodiment, all the long side side wall portions 8 and the folding container 2 in the assembled state in which all the short side side wall portions 9 are in the upright position are combined with all the long side side side wall portions 8 and the folding container 2. In the case of the folded state in which the short side side wall portion 9 is in the laid position, the pair of short side side wall portions 9 are first displaced to the laid position, and then the long side side wall portion 8 is placed in the laid position. It is configured to be displaced to. When the folding container 2 is in the folded state, the short side side wall portion 9 set as the laying position overlaps above the bottom wall portion 5, and the long side side wall portion 8 set as the laying position is short. It overlaps above the side wall portion 9.

As shown in FIG. 5, the long side side wall portion 8 is provided with a long side hinge portion 13 that is rotatably connected to the long side bearing portion 11 of the long side base portion 6. .. The long side hinge portion 13 has a hinge main body 14 projecting downward from the lower side portion of the long side side wall portion 8 and laterally from the lower end portions of both side surfaces of the hinge main body 14 in the lateral width direction of the long side side wall portion 8. It has a pair of protruding shafts. Further, the short side side wall portion 9 is provided with a short side hinge portion 16 that is rotatably connected to the short side bearing portion 12 of the short side base portion 7. The short side hinge portion 16 also includes a hinge main body 17 and a shaft portion (not shown).

Further, as shown in FIG. 2 and the like, insertion protrusions 21 projecting outward are provided on both sides of the outer surface of the short side side wall portion 9. On the other hand, the long side side wall portion 8 is provided with a locking wall 22 protruding inward from both side portions of the inner surface, and when the folding container 2 is assembled on the locking wall 22. An insertion hole portion 23 into which the insertion protrusion 21 of the short side side wall portion 9 is inserted is provided. With this configuration, tilting displacement of the short side side wall portion 9 to the outside is prevented, and misalignment between the long side side wall portion 8 and the short side side wall portion 9 in the vertical direction is prevented. It has become.

Further, on the outer surface side of the short side side wall portion 9, a lock mechanism 24 for preventing the inward tilt displacement of the short side side wall portion 9 is provided. The lock mechanism 24 includes a pair of left and right slide pieces 25 provided so as to be retractable on each side of the long side side wall portion 8, and when the folding container 2 is in the assembled state, the tip portion of the slide piece 25 is provided. Is inserted into a locking recess (not shown) provided on the inner surface side of the long side side wall portion 8. In addition, the lock mechanism 24 includes an operation unit 26 that can be operated by an operator, and by performing a predetermined operation of the operation unit 26, the pair of left and right slide pieces 25 are both displaced to a position where they have come out of the locking recess. It is designed to do.

Further, as shown in FIG. 2 and the like, the long side side wall portion 8 and the upper portion of each short side side wall portion 9 penetrate in the thickness direction of the long side side side wall portion 8 and the short side side side wall portion 9. However, a handle portion 27 is provided so that the operator can handle it. Further, corresponding to each handle portion 27, each long side side wall portion 8 and each short side side wall portion 8 with respect to the inner surface side of each long side side side wall portion 8 and each short side side side wall portion 9. A handle cover 28 is provided so as not to protrude inward from the inner surface of the portion 9 and close the handle portion 27. The handle cover 28 is elastically deformable, deforms inward when the operator inserts the fingertip into the handle portion 27, and holds by its own elastic force when the fingertip is removed from the handle portion 27. It is designed to return to the posture of closing the hand portion 27.

The distance between the pair of short side base portions 7 is longer than twice the height (vertical width) of the short side side wall portions 9. For this reason, the heights of the pair of short side side wall portions 9 that are laid down are aligned. On the other hand, the distance between the pair of long-side base portions 6 is shorter than twice the height (vertical width) of the long-side side wall portions 8. Therefore, when the folding container 2 is folded, one of the pair of long-side side wall portions 8 is displaced to the laying position, and then the other long-side side side wall portion 8 is moved. , It is displaced to the laying position so as to be overlapped above the one long side side wall portion 8 which has already been set to the laying position. That is, the pair of long side side wall portions 8 are folded so as to overlap each other. Further, the long side bearing portion 11 is configured to allow displacement in the vertical direction of the long side side hinge portion 13 of the long side side wall portion 8 in the laying position, and is a pair of lengths in the laying position. Both the side side wall portions 8 extend in the substantially horizontal direction.

As shown in FIG. 9, the pallet 3 has a pair of side pillar portions 31 provided along the pair of side side portions of the pallet 3 and the side pillar portions 31 so as to pass through the central portion of the pallet 3. A central pillar portion 32 extending in parallel, each side pillar portion 31, and an upper deck 33 connecting the upper ends of the central pillar portion 32 are provided. In the present embodiment, the side pillar portion 31, the central pillar portion 32, and the upper surface of the upper deck 33 constitute a mounting surface 34 on which the folding container 2 can be mounted. In addition, a fork insertion portion 35 into which a fork of a forklift can be inserted is formed between each side pillar portion 31 and the central pillar portion 32. In the present embodiment, the pallet is a two-way insertion type pallet in which a fork can be inserted from two of the four side surfaces constituting the outer peripheral surface of the pallet 3. The pallet 3 of this embodiment is made of polypropylene.

Further, the pallet 3 of the present embodiment is provided with an outer peripheral protrusion 36 that protrudes upward from the outer peripheral portion of the mounting surface 34 and prevents the folding container 2 mounted on the mounting surface 34 from falling off. The outer peripheral protrusion 36 of the present embodiment is provided over the entire first side side portion 34a extending along each side pillar portion 31 of the outer peripheral portion of the mounting surface 34, and the pair of first side side portions 34a. Of the second side side portions 34b connecting the ends of the second side side portion 34b, the portions near both ends of the second side pillar portion 34b corresponding to the formation range of each side pillar portion 31 and the central pillar portion 32. It is provided at a portion including the central portion of the second side side portion 34b.

By the way, as shown in FIG. 2 and the like, each long side side wall portion 8 of the folding container 2 projects upward from the inner portion of the upper side portion of the long side side side wall portion 8, and the long side side side wall portion 8 A side wall side locking portion 41 extending along the lateral width direction is provided. The side wall side locking portion 41 of the present embodiment is provided over the entire width direction of the long side side wall portion 8. Further, the upper surface of the side wall side locking portion 41 has the same height as the upper side portion of the short side side wall portion 9.

Further, as shown in FIGS. 4, 5 and 7, the bottom wall portion 5 is formed by stacking a substantially rectangular plate-shaped bottom plate portion 42 and the folded containers 2 in the assembled state among the bottom plate portions 42 (stages). When (stacked), the outer peripheral corresponding portion 43 (bottom wall portion 5), which is a portion supported by abutting the upper side portion 8 of the long side side wall portion 8 and the short side side side wall portion 9 of the lower folding container 2. Of these, a support portion 44 that protrudes downward from a portion on the inner peripheral side of the upper surface side (a portion where the long side base portion 6 and the short side base portion 7 are formed) is provided. The support portion 44 is configured such that ribs protruding downward from the bottom plate portion 42 are provided in a grid pattern in a bottom view. Further, as shown in FIG. 5 and the like, the outer peripheral corresponding portion 43 of the bottom plate portion 42 of the present embodiment is provided so as to be located above the inner peripheral side portion thereof. In FIG. 7 (and FIG. 8 described later), the side wall portions 8 and 9 of the upper folding container 2 are omitted for convenience.

Further, as shown in FIGS. 4 and 7, the bottom wall constituent portion 4 has a gap between the bottom wall constituent portion 4 and the support portion 44 below the long side base portion 6 connected to the long side side wall portion 8. A bottom wall-side locking portion 45 that protrudes downward from the outer peripheral corresponding portion 43 so as to be formed is provided. As shown in FIG. 2, in the present embodiment, the bottom wall side locking portions 45 are provided in the vicinity of both ends of the long side portions of the bottom wall portion 5, and the outer peripheral surface and the surface of the bottom wall constituent portion 4. It is provided along the long side portion of the bottom wall portion 5 so as to be one. Then, as shown in FIG. 7, when the folded containers 2 in the assembled state are stacked, the lower side is in the gap between the bottom wall side locking portion 45 of the upper folding container 2 and the support portion 44. The side wall side locking portion 41 of the folding container 2 is inserted.

With this configuration, in the stacked state of the folding container 2 in the assembled state, the long side side wall portion 8 of the lower folding container 2 may be tilted and displaced or deformed in the inner and outer peripheral directions of the folding container 2. It is deterred. Further, in the work of stacking the folding containers 2, the horizontal position of the folding container 2 placed on the upper side of the folded container 2 in the assembled state is the long side provided with the side wall side locking portion 41. Even if the side side wall portion 8 is displaced in the horizontal width direction (there may be a case where the side side wall portion 8 is intentionally displaced and placed), as shown in FIG. 8, the bottom wall side locking portion 45 of the upper folding container 2 and the support portion It is assumed that the side wall side locking portion 41 of the lower folding container 2 is inserted into the gap between the folding container 2 and the 44. As a result, the folding container 2 placed on the upper side can be slid to the upper side portion of the long side side wall portion 8 of the lower folding container 2 and slid (slide stack) until the relative positions match. can.

As shown in FIGS. 4 and 8, the bottom wall component 4 of the present embodiment is a slide auxiliary protrusion protruding downward from a portion of the outer peripheral corresponding portion 43 located below the long side base portion 6. It is equipped with 46. The slide auxiliary protrusions 46 are provided in pairs so as to be located closer to the central portion of the long side portion of the bottom wall portion 5 than the bottom wall side locking portions 45. When the folding container 2 is slid-stacked, at least the slide auxiliary protrusion 46 of the upper folding container 2 is brought into contact with (sliding contact) the upper surface of the side wall side locking portion 41 of the lower folding container 2. It has become like. Further, as shown in FIGS. 2 and 8, the upper side portion of the long side side wall portion 8 accommodates the slide auxiliary protrusion 46 of the upper folding container 2 when the folded containers 2 in the assembled state are stacked. A storage recess 47 is provided. Therefore, when the stacking of the folded containers 2 in the assembled state is completed, as shown in FIG. 7, the slide auxiliary protrusion 46 of the upper folding container 2 and the side wall side locking of the lower folding container 2 are locked. The state in which the upper surface of the portion 41 is in contact with the upper surface is eliminated, and the upper surface of the side wall side locking portion 41 of the lower folding container 2 and the bottom wall of the upper folding container 2 are eliminated over the entire width direction of the long side side wall portion 8. The inner side surface of all the bottom wall side locking portions 45 of the upper folding container 2 is in contact with the portion 5 (outer peripheral corresponding portion 43), and the inner side surface of all the bottom wall side locking portions 45 of the upper folding container 2 is the side wall side locking portion 41 of the lower folding container 2. It is in contact with or close to the outer surface.

In addition, as shown in FIG. 4 and the like, the bottom wall constituent portion 4 projects downward from each portion of the outer peripheral corresponding portion 43 corresponding to each short side base portion 7, and is connected to the support portion 44. A backlash stop protrusion 48 on the bottom wall side is provided. In the present embodiment, two bottom wall-side backlash stop protrusions 48 are provided corresponding to each short side of the bottom wall portion 5. The outer surface of the bottom wall side backlash stop protrusion 48 of the present embodiment is flush with the outer surface of the bottom wall component 4 (the outer surface of the short side base portion 7). Further, as shown in FIG. 2 and the like, when the folded containers 2 in the assembled state are stacked on the upper side of the short side side wall portion 9, the bottom wall side backlash stop protrusion 48 is allowed to be inserted. A recess 49 for preventing backlash is provided.

Further, as shown in FIG. 1, in the pallet 3 of the present embodiment, the longitudinal direction of the folding container 2 is orthogonal to the extending direction of the side pillar portion 31 and the central pillar portion 32 (fork insertion portion 35). In this orientation, three folding containers 2 can be placed side by side. Further, as shown in FIG. 9, on the mounting surface 34 of the pallet 3, positions near both ends of the second side side portions 34b of the mounting surface 34 (positions corresponding to both ends of each side pillar portion 31). A pallet-side backlash stop protrusion 51 that protrudes upward and is connected to the inner peripheral side surface of the outer peripheral protrusion 36 is provided.

Then, in a state where the folding container 2 is placed on the pallet 3, as shown in FIG. 11, the bottom wall-side backlash stop protrusion 48 of the bottom wall constituent portion 4 of the folding container 2 is placed among the outer peripheral protrusions 36. It is configured to abut or approach the inner peripheral side surface of the portion corresponding to the first side side portion 34a of the surface 34. As a result, the relative displacement between the folding container 2 and the pallet 3 in the longitudinal direction of the folding container 2 is prevented.

Further, as shown in FIG. 12, of the three folding containers 2 provided side by side, the outer peripheral surface of the support portion 44 in the folding containers 2 on both sides is locked, which is a portion corresponding to the long side base portion 6. The pallet-side backlash stop protrusions 51 are configured to abut or approach the corresponding surfaces 52, respectively. It should be noted that the bottom wall constituent portion 4 of the present embodiment has a shape in which the locking corresponding surface 52 is recessed so as to accommodate the tip end portion side of the pallet side backlash stop protrusion 51. Is provided. Then, inside the bottom wall-side backlash-stopping recess 53, the tip of the pallet-side backlash-stopping protrusion 51 and the locking-corresponding surface 52 come into contact with each other or come close to each other. In this way, the locking-corresponding surface 52 of the folding container 2 placed on the pallet 3 as described above and the pallet-side backlash stop protrusion 51 of the pallet 3 are brought into contact with each other, whereby the pallet is brought into contact with the pallet. The outer surface of the folding container 2 placed on the third side on the long side (the outer surface of the side wall portion 8 on the long side side and the outer surface on the short side side of the bottom wall constituent portion 4 including the base portion 6 on the long side side). The outer peripheral surface of the pallet 3 is substantially flush with the outer peripheral surface.

Further, as shown in FIGS. 1 and 10, when the folding container 2 is placed on the pallet 3, the bottom wall side locking portion 45 is configured to be dispositionable above the outer peripheral protrusion 36. In particular, in the present embodiment, the distance between the bottom wall-side locking portion 45 in the vertical direction and the lower surface of the support portion 44 is substantially the same as the protruding length of the outer peripheral protrusion 36 from the mounting surface 34 (or the outer circumference). The bottom wall side locking portion 45, which is configured to be slightly longer than the protrusion length of the protrusion 36) and is arranged above the outer peripheral protrusion 36, abuts or abuts on the upper surface of the outer peripheral protrusion 36. It is configured to be in close proximity. As shown in FIG. 4 and the like, the bottom wall component 4 of the present embodiment is formed between the pair of slide auxiliary protrusions 46, each slide auxiliary protrusion 46, and the bottom wall portion 5 from each slide auxiliary protrusion 46. Auxiliary leg portions 54 projecting downward from the outer peripheral corresponding portion 43 are provided between the positions separated from both ends of the long side portion of the above by a predetermined distance. The auxiliary leg portion 54 is provided along the long side side portion of the bottom wall portion 5 like the bottom wall side locking portion 45, and the protrusion length downward from the outer peripheral corresponding portion 43 and the thickness are on the bottom wall side. It is the same as the locking portion 45. When the folded containers 2 in the assembled state are stacked, as shown in FIG. 7, the auxiliary leg portion 54 of the upper folding container 2 is the lower folding container as well as the bottom wall side locking portion 45. It comes into contact with or is close to the outer surface of the side wall side locking portion 41 of 2. Further, when the folding container 2 is placed on the pallet 3, as shown in FIG. 10 and the like, the auxiliary leg portion 54 is the upper surface of the outer peripheral protrusion 36 of the pallet 3 as well as the bottom wall side locking portion 45. It is configured to be in contact with or close to. In addition, when the folding container 2 is placed on the pallet 3, the slide auxiliary protrusions 46 are arranged relative to each other in a range where the outer peripheral protrusion 36 of the pallet 3 is not provided, as shown in FIG. It has become.

Further, as shown in FIGS. 5, 6 and 10, the bottom wall component 4 is formed with each long side base portion 6 at both ends in the longitudinal direction of the bottom wall portion 5 and a portion corresponding to the central portion. The inclined wall 61 is provided so as to be obliquely connected to the bottom wall portion 5 (bottom plate portion 42). In the longitudinal direction of the bottom wall portion 5, the bottom wall side locking portion 45 is provided in the range where the inclined wall 61 is provided. Further, in the state where the folding container 2 is placed on the pallet 3 as described above, the folding container 2 is provided on the second side side portion 34b of the mounting surface 34 of the pallet 3 in the range where the inclined wall 61 is provided. An outer peripheral protrusion 36, each side pillar portion 31, and a central pillar portion 32 are provided. It should be noted that a range in which the sloping walls 61 on both sides of the long side of the bottom wall 5 and the sloping wall 61 in the center are not provided (however, in this example, even in such a range, Compared to the inclined wall 61, the protruding length of the bottom wall portion 5 toward the inner peripheral side is suppressed, but the lower part of the inner surface of the long side base portion 6 is inclined), and the short side is laid down. Both sides of the side side wall 9 are arranged so as to be arranged.

Further, as shown in FIG. 5, the bottom wall portion 5 includes a thick bottom portion 62 having a thickness larger than that of the general portion 5a of the bottom wall portion 5 at a portion adjacent to the lower end portion of the inclined wall 61. In the present embodiment, the thick bottom portion 62 is provided so as to connect the inclined walls 61 facing each other in the lateral direction of the bottom wall portion 5. The thick bottom portion 62 is configured by positioning the bottom plate portion 42 of the corresponding portion upward and extending the support portion 44 upward by the amount that the bottom plate portion 42 is located upward.

Further, as shown in FIG. 13, in the present embodiment, the lid member capable of covering the upper part of the three folding containers 2 on one side with respect to the folding containers 2 placed side by side with respect to the pallet 3. 63 is configured to be mountable. The lid member 63 includes a top wall portion 64 having a substantially rectangular shape in a plan view, and a substantially square frame-shaped outer peripheral wall portion 65 projecting downward from the outer peripheral edge of the top wall portion 64. Then, when the lid member 63 is put on the folded container 2 in the assembled state in which three pallets 3 are placed side by side, the lid member 63 is placed above the second side side portion 34b of the mounting surface 34 of the pallet 3. The outer peripheral wall portion 65 of the lid member 63 is configured to be in contact with or close to the outer surface of the side wall side locking portion 41 of the long side side wall portion 8 to be located. As described above, in the present embodiment, the side wall side locking portion 41 is provided over the entire width direction of the long side side wall portion 8, and the outer peripheral wall portion 65 of the lid member 63 is formed on the side wall side locking portion 41. It can be located on the outer side and above the upper side portion of the long side side wall portion 8. In particular, in the present embodiment, the outer surface of the long side side wall portion 8 of the folding container 2 placed on the pallet 3, the outer surface of the outer peripheral wall portion 65 of the lid member 63 covered on the folding container 2, and the pallet 3. The outer peripheral surface is made to be substantially flush with each other.

In addition, on the upper surface side of the lid member 63, a lid-side stacking recess 66 is provided so that the side pillar portion 31 of the pallet 3 and the lower portion of the central pillar portion 32 can be fitted respectively. As a result, the folding container 2 can be placed on the pallet 3, and the units covered with the lid member 63 on the folding container 2 can be stacked up and down (stacked). The lid member 63 of this embodiment is made of polypropylene.

As described in detail above, according to the present embodiment, the bottom wall side locking portion 45 is provided, which is configured to allow the folding containers 2 to be slid-stacked relatively smoothly and reliably in the work of stacking the folding containers 2. Even when the folding container 2 is placed on the pallet 3, the bottom wall-side locking portion 45 of the folding container 2 and the outer peripheral protrusion 36 of the pallet 3 can be arranged vertically. Therefore, the space above the outer peripheral protrusion 36 of the pallet 3 can also be utilized as the installation space for the folding container 2, and as a result, the space efficiency when the folding container 2 is placed on the pallet 3 for transportation and storage. Can be improved.

Further, for example, when the outer dimensions of the pallet 3 are specified, the space above the outer peripheral protrusion 36 of the pallet 3 cannot be used as an installation space for the folding container 2, so that the pallet 3 is placed on the pallet 3. By making the folding container 2 smaller by the amount that the outer surface of the folding container 2 is located on the inner peripheral side of the pallet 3 with respect to the outer peripheral surface of the pallet 3, the capacity of the folding container 2 is reduced. Can be avoided. Therefore, it is possible to improve the transportation efficiency when the folding container 2 is placed on the pallet 3 and transported.

In addition, even if the folding container 2 placed on the pallet 3 is displaced relative to the pallet 3 in the horizontal direction, the bottom wall side locking portion 45 and the outer peripheral protrusion 36 are in contact with each other in the horizontal direction. The situation is being avoided. Therefore, for example, when the outer surface of the bottom wall side locking portion 45 and the inner peripheral side surface of the outer peripheral protrusion 36 come into contact with each other, the bottom wall side locking portion 45 and the outer peripheral protrusion 36 are in pressure contact with each other. It is possible to avoid a situation in which the bottom wall side locking portion 45 is deformed or damaged toward the support portion 44 side.

The bottom wall side locking portion 45 can also be provided at a position displaced from the outer peripheral edge of the bottom wall portion 5 to the inner peripheral side of the bottom wall portion 5 by the thickness of the outer peripheral protrusion portion 36. The upper space can be used as an installation space for the folding container 2. However, in that case, since it is necessary to bring the outer surface of the bottom wall side locking portion 45 closer to the support portion 44 side, if the width of the outer peripheral corresponding portion 43 is not changed, the bottom wall side locking portion 45 is thin. Or, the side wall side locking portion 41 is thinned due to the narrowing of the gap between the bottom wall side locking portion 45 and the support portion 44, and the bottom wall side locking portion 45 and the side wall are formed. There is a concern that the strength of the side locking portion 41 may decrease. On the other hand, when the width of the outer peripheral corresponding portion 43 is widened, the capacity of the folding container 2 is reduced due to a decrease in the strength of the bottom wall portion 5 or an increase in the thickness of the long side base portion 6 and the like. There is a concern that it will lead to. On the other hand, as in the present embodiment, by allowing the bottom wall side locking portion 45 to be arranged above the outer peripheral protrusion 36, the above concerns can be dispelled, and the bottom wall side locking portion 45 and the bottom wall side locking portion 45 and While ensuring the strength of the side wall side locking portion 41, it is possible to improve the space efficiency when the folding container 2 is placed on the pallet 3 for transportation and storage.

Further, in the present embodiment, when the folding container 2 is placed on the pallet 3, the bottom wall-side locking portion 45 of the folding container 2 faces the upper surface of the outer peripheral protrusion 36 of the pallet 3 and abuts or abuts. , Are configured to be close together. Therefore, with respect to the folding container 2 placed directly on the pallet 3, even if the long side base portion 6 located above the bottom wall side locking portion 45 attempts to tilt outward (lower side), the bottom wall side Since the lower surface of the locking portion 45 is in contact with and supported by the upper surface of the outer peripheral protrusion 36, such tilting displacement can be prevented.

Further, in the present embodiment, an inclined wall 61 that obliquely connects the inner side surface of the long side base portion 6 and the upper surface of the bottom wall portion 5 is provided. For this reason, the long side base portion 6 connected to the long side side wall portion 8 provided with the side wall side locking portion 41 may be tilted and displaced (particularly outward) or deformed. Can be prevented. In particular, since the inclined wall 61 is provided in the range where the bottom wall side locking portion 45 is provided at least in the lower position of the long side base portion 6, the displacement of the long side base portion 6 and the like It is possible to more reliably prevent a situation in which the bottom wall side locking portion 45 is displaced from the normal position due to the above. For this reason, the relative positions of the bottom wall side locking portion 45 and the outer peripheral protrusion 36 are displaced due to the outward tilting displacement of the long side base portion 6 (for example, the bottom wall side locking portion in the horizontal direction). It is possible to prevent a situation such as the 45 and the outer peripheral protrusion 36 coming into contact with each other). Therefore, it is possible to stabilize the state in which the folding container 2 is placed on the pallet 3 and improve the durability of the bottom wall side locking portion 45 and the like.

In addition, the bottom wall portion 5 of the present embodiment includes a thick bottom portion 62 having a large thickness at a portion adjacent to the lower end portion of the inclined wall 61. Therefore, the displacement and deformation of the inclined wall 61 can be more reliably prevented, and by extension, the displacement and deformation of the long side base portion 6 connected to the inclined wall 61 can be more reliably prevented. Therefore, the effects such as stabilizing the state in which the folding container 2 is placed on the pallet 3 and improving the durability of the bottom wall side locking portion 45 are further exhibited.

Further, the mounting surface 34 of the pallet 3 has a pallet-side backlash stop protrusion that can come into contact with the locking-corresponding surface 52, which is a portion of the outer peripheral surface of the support portion 44 that corresponds to the long-side base portion 6. 51 is provided, and the locking surface 52 of the folding container 2 placed on the pallet 3 and the pallet side backlash stop protrusion 51 of the pallet 3 are brought into contact with each other, so that the container 3 is placed on the pallet 3. The outer surface of the side wall portion 8 on the long side of the folding container 2 and the outer peripheral surface of the pallet 3 are configured to be substantially flush with each other. In this way, when the outer surface of the long side side wall portion 8 of the folding container 2 and the outer peripheral surface of the pallet 3 are substantially flush with each other, the folding container 2 is transported and stored using the pallet 3. It is possible to improve the stability and space efficiency of the pallet. Further, when the outer surface of the folding container 2 and the outer peripheral surface of the pallet 3 are substantially flush with each other, between the locking corresponding surface 52 of the support portion 44 of the folding container 2 and the outer peripheral protrusion 36 of the pallet 3. Even if a gap is formed in the pallet, it is possible to prevent the outer surface of the folding container 2 from protruding outward from the outer peripheral surface of the pallet 3 by the backlash stop protrusion 51 on the pallet side. .. Further, for example, by increasing the thickness of the outer peripheral protrusion 36 that can face the locking compatible surface 52, the gap between the locking compatible surface 52 of the support portion 44 and the outer peripheral protrusion 36 of the pallet 3 is eliminated. Compared with such a configuration, it is possible to suppress the weight increase of the pallet 3 and the increase of the materials used.

The content is not limited to the description of the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modification examples not illustrated below are also possible.

(A) In the above embodiment, the inclined wall 61 connecting the long side base portion 6 and the upper surface of the bottom wall portion 5 is provided, and the thick bottom portion 62 is provided in the bottom wall portion 5 adjacent to the inclined wall 61. However, one or both of them may be omitted. In addition, the thick bottom portion 62 of the above embodiment extends so as to connect between the pair of long side base portions 6 facing each other, but may be provided only in the vicinity of the inclined wall 61.

(B) In the above embodiment, the bottom wall side backlash stop recess 53 provided in the support part 44 of the bottom wall part 5 is omitted, and the tip end portion of the pallet side backlash stop protrusion 51 is directly placed on the outer peripheral surface of the support part 44. It may be possible to contact. However, since the bottom wall side backlash prevention recess 53 is provided, the pallet side backlash prevention protrusion 51 can also prevent the folding container 2 from being displaced in the longitudinal direction, and the pallet 3 is provided with the same. Even if the folding container 2 is placed in a direction different from that of the above embodiment, the pallet side backlash stop protrusion 51 is not inserted into the bottom wall side backlash stop recess 53, so that the folding container 2 is placed in the wrong direction. Can be prevented.

It is also possible to omit the backlash stop protrusion 51 on the pallet side. However, the thickness of the portion of the outer peripheral protrusion 36 provided along the second side side portion 34b (the side side portion on the opening side of the fork insertion portion 35) of the mounting surface 34 of the pallet 3 is not increased. In order to prevent the folding container 2 placed on the pallet 3 from being displaced in the lateral direction, it is desirable to provide the pallet side backlash prevention protrusion 51.

Further, instead of omitting the bottom wall-side backlash-stopping protrusion 48, a pallet-side backlash-stopping protrusion that can come into contact with a portion of the outer peripheral surface of the support portion 44 corresponding to the short-side base portion 7 may be provided. good. It should be noted that it is not necessary to form a gap between the bottom wall side backlash stop protrusion 48 and the support portion 44, and a sufficient thickness of the bottom wall portion 5 in the inner and outer peripheral directions can be secured. While ensuring the strength of the side backlash stop protrusion 48, for example, a portion of the outer surface of the bottom wall side backlash stop protrusion 48 that can face (contact) the inner peripheral side surface of the outer peripheral protrusion 36 of the pallet 3. It is also possible to position the bottom wall portion 5 on the inner peripheral side of the bottom wall portion 5 (by the thickness of the outer peripheral protrusion 36) with respect to the short side portion of the bottom wall portion 5. In this case, when the folding container 2 is placed on the pallet 3, the outer surface on the short side side of the bottom wall constituent portion 4 and the outer peripheral surface of the pallet 3 can be made substantially flush with each other.

(C) In the above embodiment, when the folding container 2 is covered with the lid member 63, the outer peripheral wall portion 65 of the lid member 63 is prevented from protruding outward from the outer surface of the long side side wall portion 8. Although the side wall side locking portion 41 is provided over the entire width direction of the long side side wall portion 8, it is possible to avoid a situation in which the slide stack is restricted in the middle before the stacking of the folding container 2 is completed. It suffices if it is configured to be possible. For example, when the folding containers 2 are stacked, the side wall side locking portions 41 are a pair of the bottom wall side locking portions 45 of the upper folding container 2 that are close to both side portions of the long side side wall portion 8. The bottom wall side locking portion 45 may be continuously provided in the range between the portions where the bottom wall side locking portion 45 is arranged.

(D) In the above embodiment, the side wall side locking portion 41 is provided on the long side side wall portion 8, and the bottom of the outer peripheral corresponding portion 43 of the bottom wall portion 5 is located below the long side base portion 6. The wall-side locking portion 45 is provided, but instead of or in addition to this configuration, the side wall-side locking portion 41 is provided on the short-side side side wall portion 9, and the outer peripheral corresponding portion 43 of the bottom wall portion 5 is provided. Of these, the bottom wall side locking portion 45 may be provided at a portion located below the short side base portion 7. Further, in the above embodiment, the pair of short side side wall portions 9 are first laid down, and then the pair of long side side wall portions 8 are laid down. The side wall portion 8 may be laid down first, and then the pair of short side side wall portions 9 may be laid down. Further, in the above embodiment, while the height positions of the pair of short side side wall portions 9 set as the laying positions are aligned, the pair of long side side wall portions 8 set as the laying positions overlap each other vertically. However, for example, the short side side wall portions 9 which are laid down may be configured to overlap each other vertically, or the height position of the long side side wall 8 which is laid down may be It may be configured to be aligned.

(E) In the above embodiment, the bottom wall side locking portion 45 is configured to extend to the central portion side of the long side side portion of the bottom wall portion 5 so as to be connected to the auxiliary leg portion 54. May be good. The auxiliary leg portion 54 is provided along the long side side portion of the bottom wall portion 5 like the bottom wall side locking portion 45, and the downward protrusion length from the outer peripheral corresponding portion 43 is the bottom wall side locking portion. It is the same as the part 45. When such a configuration is adopted, the area where the bottom wall side locking portion 45 of the folding container 2 and the outer peripheral protrusion 36 of the pallet 3 can come into vertical contact with each other when the folding container 2 is placed on the pallet 3. Can be increased. Therefore, the effects such as stabilizing the state in which the folding container 2 is placed on the pallet 3 and improving the durability of the bottom wall side locking portion 45 and the like are further exhibited. The bottom wall side locking portion 45 of the present embodiment is basically in a substantially locked state on the outer surface side of the side wall side locking portion 41 of the lower folding container 2 when the folding container 2 is slid-stacked. It is intended as a part to be used (a part that contributes to the stabilization of the slide stack).

(F) The pallet 3 of the above embodiment is a two-way type pallet including a pair of side pillars 31 and a central pillar 32, but with four corner pillars provided at the four corners of the pallet. A fork is provided from four side surfaces constituting the outer peripheral surface of the pallet, which is provided with an intermediate pillar provided at the intermediate portion of a pair of corner pillars arranged along the side sides of the pallet and a central pillar provided at the central portion of the pallet. It is also possible to adapt to a pluggable 4-way type pallet.

Further, the forming range of the outer peripheral protrusion 36 provided along the outer circumference of the mounting surface 34 of the pallet 3 is not particularly limited, and it is possible to prevent the folding container 2 mounted on the pallet 3 from falling off. I just need to be there. For example, the slide auxiliary protrusion 46 of the folding container 2 may be omitted, and the outer peripheral protrusion 36 may be provided on the entire outer circumference of the mounting surface 34.

(G) The folding container 2, the pallet 3, and the lid member 63 of the above embodiment are made of polypropylene, but may be made of other resin materials such as polyethylene, PET, and polyamide.

1 ... Transport unit, 2 ... Folding container, 3 ... Pallet, 4 ... Bottom wall component, 5 ... Bottom wall, 5a ... General part, 6 ... Long side base part, 7 ... Short side base part, 8 ... Long side side wall, 9 ... Short side side wall, 11 ... Long side bearing, 12 ... Short side bearing, 31 ... Side pillar, 32 ... Central pillar, 33 ... Upper deck, 34 ... Bearing surface, 36 ... outer peripheral protrusion, 41 ... side wall side locking part, 43 ... outer peripheral corresponding part, 44 ... support part, 45 ... bottom wall side locking part, 51 ... pallet side backlash stop protrusion, 61 ... inclined wall , 62 ... Thick bottom.

Claims (3)

A bottom wall portion having a substantially rectangular shape in a plan view, and a bottom wall constituent portion having a base portion protruding upward along each side portion of the bottom wall portion.
With respect to each base portion of the bottom wall constituent portion, a rotatably displaceable connection is made between an upright position erected above each base portion and a laying position laid above the bottom wall portion. Folding container with side wall and
A plurality of pillars and an upper deck connecting the upper ends of the plurality of pillars are provided, and the pillars and the upper surface of the upper deck form a mounting surface on which the folding container can be placed. In a transport unit with a pallet to be
The pallet protrudes upward from the outer peripheral portion of the above-described mounting surface, and includes an outer peripheral protrusion portion for preventing the folding container mounted on the previously described mounting surface from falling off.
The folding container is configured so that the folding containers in an assembled state in which at least all the side wall portions are in the upright position can be stacked up and down.
At least a pair of the side wall portions facing each other include a side wall side locking portion that projects upward from the upper side portion of the side wall portion and extends along the lateral width direction of the side wall portion.
The bottom wall portion is a portion of the bottom wall portion that is supported by abutting the upper side portion of the side wall portion of the folding container on the lower side when the folding containers in the assembled state are stacked. It has a support part that protrudes downward from the part on the inner circumference side of the corresponding part.
The bottom wall component corresponds to the outer periphery so that a gap is formed between the bottom wall component and the support portion below the base portion connected to the side wall portion provided with the side wall side locking portion. Equipped with a bottom wall side locking part that protrudes downward from the part
When the folding containers in the assembled state are stacked, the side wall side of the folding container on the lower side is in the gap between the bottom wall side locking portion of the folding container on the upper side and the support portion. The locking part is inserted,
When the folding container is placed on the pallet, it is installed corresponding to the range of the bottom wall-side locking portion of the folding container in which the outer peripheral protrusion is provided in the circumferential direction of the pallet. The transport unit characterized in that the bottom wall side locking portion faces the upper surface of the outer peripheral protrusion portion and is configured to be in contact with or close to each other. The bottom wall component portion is included in the base portion connected to the side wall portion provided with the side wall side locking portion, in a range in which the bottom wall side locking portion is provided at least at a lower position. An inclined wall that diagonally connects the inner surface of the base portion and the upper surface of the bottom wall portion is provided .
It said bottom wall portion, conveying unit according to claim 1, wherein the portion adjacent the lower end of the inclined wall, characterized in that it includes a platform portion is larger thickness than the general portion of the bottom wall portion. The previously described mounting surface of the pallet is a locking corresponding surface which is a portion of the outer peripheral surface of the supporting portion corresponding to the base portion connected to the side wall portion provided with the side wall side locking portion. A pallet-side backlash stop protrusion that can be in contact with the pallet is provided.
The locking surface of the folding container placed on the pallet and the backlash stop protrusion on the pallet side of the pallet are brought into contact with each other, so that the outside of the folding container placed on the pallet is brought into contact with each other. The transport unit according to claim 1 or 2, wherein the side surface and the outer peripheral surface of the pallet are substantially flush with each other.

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