JP2018162085A - Folding container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding container in which structure simplification can be achieved and the self-standing condition of side wall parts can be suitably maintained.SOLUTION: A box pallet 1 comprises long side side wall parts 6 which are provided so as to be attitude-changeable between a standing position and a falling position. The long side side wall part 6 comprises plural long side insertion parts 15 which protrude from the lower side part, and, at the lower end part of both side surfaces of the long side insertion part 15, provided is an insertion protrusion part 17 which protrudes to the side direction. A bottom wall constituting part 2 comprises plural long side parts 24 to be inserted which open upward and into which the long side insertion part 15 can be inserted. The long side part 24 to be inserted is provided so as to sandwich the insertion protrusion part 17 in the inner and outer periphery direction of the bottom wall constituting part 2 and comprises an inner wall part 27 and an outer wall part 26 which extend vertically. At the boundary part between the side surface of the long side insertion part 15 and the lower side part of the long side side wall part 6, provided is a falling-preventing protrusion part 34. Supposing the long side side wall part 6 as the standing position, the insertion protrusion part 17 and the falling-preventing protrusion part 34 are positioned between the inner wall part 27 and the outer wall part 26.SELECTED DRAWING: Figure 4

Description

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

  Conventionally, as a container used for transporting articles, etc., the bottom wall constituting part having a substantially rectangular shape in plan view and the side wall part above the side part corresponding to each side part of the bottom wall constituting part There is known a folding container including a standing position that is erected and a side wall portion that is provided so that the posture can be changed between a laying position that is laid on the center side of the bottom wall constituting portion. In addition, when the folding container is in a folded state in which all the side wall portions are in the sleeping position, and in an assembled state in which all the side wall portions are in the standing position, the side walls that are in the standing position before the other side wall portions. In some cases, the portion may be configured to maintain its self-supporting state. For example, a plurality of engaging portions protruding from the lower side portion of the side wall portion are provided, and the engaging portions on both sides of the plurality of engaging portions protrude to the side of the side wall portion, and the bearing portion of the bottom wall constituting portion In addition to providing a shaft portion that is pivotally supported on the engagement portion, the engagement portion not provided with the shaft portion is provided with a fall prevention portion that protrudes from the lower surface and is inserted into the locking groove of the bottom wall constituting portion at the standing position. There is a technology (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 9-267837

  By the way, just by inserting the fall prevention part into the locking groove of the bottom wall constituting part, the lowermost end part of the side wall part is only slightly positioned, and it is assumed that a plurality of engagement parts provided with the fall prevention part are provided. However, it is difficult to suitably maintain the self-standing state of the side wall.

  On the other hand, in patent document 1, the engagement protrusion which protrudes below from the site | part in which the engagement part is not provided among the lower sides of a side wall part is provided, and an engagement protrusion is provided with respect to a bottom wall structure part. An engagement hole into which is inserted is provided.

  However, in the case of adopting this configuration, regarding the configuration in which the side wall portion is in a self-supporting state, it is complicated by providing the engagement portion for the fall prevention portion, and the engagement protrusion is provided. There is a concern that this will cause further complications. In addition, the unevenness increases in the portion where the side wall portion in the standing position and the bottom wall constituent portion are aligned, so that a gap is easily formed between the side wall portion and the bottom wall constituent portion, and the content is a gap portion. There is a concern that this may lead to a situation such as being caught in

  The present invention has been made to solve the above-described problems and the like, and its purpose is to provide a folding container capable of suitably maintaining the self-standing state of the side wall while simplifying the configuration. It 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 the means to respond | correspond as needed are added.

Means 1. A bottom wall component having a substantially rectangular shape in plan view;
Corresponding to each side part of the bottom wall constituent part, an upright position standing above the side part of the bottom wall constituent part, and a laying position laid down on the center part side of the bottom wall constituent part And a side wall provided so that the posture can be changed between,
The side wall portion includes a plurality of insertion portions protruding downward from a lower side portion,
The bottom wall constituting portion includes a plurality of inserted portions that open upward and are capable of inserting the insertion portions.
With respect to at least one side wall portion of the side wall portions, the insertion portion provided on the side wall portion includes lower end portions on both side surfaces of the insertion portion, or insertion protrusions protruding sideways from the vicinity thereof,
The inserted portion includes an inner wall portion provided so as to sandwich the insertion protrusion in the inner and outer peripheral directions of the bottom wall constituting portion, and an outer wall portion,
The inner wall portion and the outer wall portion extend vertically, and the insertion protrusion is configured to be relatively displaceable vertically between the inner wall portion and the outer wall portion,
A fall prevention protrusion is provided at the boundary portion between the side surface of the insertion portion provided with the insertion protrusion and the lower side portion of the side wall portion, or in the vicinity thereof,
In the case where the side wall portion is in the laying position, the insertion protrusion is positioned between the inner wall portion and the outer wall portion, and the fall prevention protrusion is located on the bottom wall constituting portion rather than the inner wall portion. Located on the inner circumference side,
When the side wall portion is in the standing position, the insertion protrusion is positioned between the inner wall portion and the outer wall portion, and the fall prevention protrusion is formed between the inner wall portion and the outer wall portion. A collapsible container, wherein the collapsible prevention protrusion, the inner wall portion, and the outer wall portion are in contact with each other or close to each other.

  According to the means 1, when the fall prevention protrusion is provided corresponding to the insertion portion having the insertion protrusion, and the side wall portion is in the standing position, between the inner wall portion of the inserted portion and the outer wall portion, Not only the insertion protrusion of the insertion part but also the fall prevention protrusion is configured to be in the insertion state. Thereby, when a side wall part exists in a standing position, an insertion part will be supported by the inner wall part and the outer wall part in the upper part and the lower part. For this reason, it is possible to more reliably prevent the rotational displacement of the insertion portion and the tilt displacement of the side wall portion. In addition, the fall prevention projection can be provided without any trouble in assembling the side wall portion corresponding to the insertion portion provided with the insertion projection, and only by providing the fall prevention projection at the upper portion of the insertion portion. A rotational displacement can be reliably prevented. Therefore, it is not necessary to separately provide a configuration for preventing rotational displacement at the upper position of the insertion portion at a location different from the insertion portion where the insertion protrusion is provided. As a result, the self-standing state of the side wall portion can be suitably maintained while simplifying the configuration. Furthermore, when the self-standing state of the side wall portion is suitably maintained, when the other side wall portion is displaced between the standing position and the laying position, the displacement of the side wall portion is inhibited by the self-standing side wall portion. Such a situation can be avoided, the assembly of the folding container and the workability at the time of folding can be improved, and the shape of the folding container in the assembled state can be stabilized.

  In addition, since the side wall portion is configured to be self-supporting, it is possible to suppress a situation in which unevenness is formed at the mating portion between the side wall portion in the standing position and the bottom wall constituting portion. Therefore, it is easy to form a gap between the side wall portion and the bottom wall constituting portion due to the formation of the unevenness, and it is possible to suppress a situation in which the content is caught in the gap portion. Furthermore, because of the configuration for making the side wall portion self-supporting, it is possible to suppress a situation in which a hole portion is provided in the bottom wall constituting portion, and a situation in which the strength of the bottom wall constituting portion is reduced by providing the hole portion. Can be deterred. In addition, by simplifying the configuration for allowing the side wall portion to be self-supporting, it is possible to simplify the mold for forming the side wall portion and the bottom wall constituting portion, thereby reducing the manufacturing cost and the like. be able to.

  Even when the side wall portion is in the laying position, the side wall portion can be positioned by positioning the insertion protrusion between the inner wall portion and the outer wall portion.

  Mean 2. The fall prevention protrusion is provided at a boundary portion between the side surface of the insertion portion and the lower side portion of the side wall portion, and is connected to the side surface of the insertion portion and the lower side portion of the side wall portion. The folding container of the means 1 to do.

  According to the means 2, the strength of the fall prevention protrusion can be increased, and deformation or damage of the fall prevention protrusion can be prevented. Therefore, it is possible to improve the durability of the fall prevention protrusion and more stably support the side wall portion in a self-supporting state. In addition, since the fall prevention protrusion is provided corresponding to the upper end portion of the insertion portion as the position where the fall prevention projection is provided, there is an effect of preventing the rotational displacement of the insertion portion, and thus the tilt displacement of the side wall portion. Played more effectively. Further, since the fall prevention protrusion is provided connected to the insertion portion, for example, the insertion portion into which the fall prevention protrusion is inserted is made as compact as possible compared to the case where the fall prevention projection is provided apart from the insertion portion. be able to. Therefore, for example, it is possible to suppress a situation in which the strength of the peripheral portion of the insertion portion is reduced due to the width of the insertion portion being too wide.

  Means 3. The fall prevention protrusion corresponds to the insertion part on both sides among the plurality of insertion parts provided on the side wall part, and is an outer side which is a side surface side of the side wall part of the insertion part. The folding container according to means 1 or 2, wherein the folding container is provided corresponding to a side surface.

  According to the means 3, since the fall prevention protrusion is provided corresponding to the outer side surface of the insertion part on both sides among the plurality of insertion parts provided on the side wall part, the vertical direction is set with respect to the side wall part in the standing position. When a force that can be rotationally displaced in the axial direction is applied, the fall prevention protrusion comes into contact with the inner wall portion and the outer wall portion, and the rotational displacement of the side wall portion can be effectively prevented. Therefore, the self-standing state of the side wall portion and the assembled state of the folding container can be further stabilized.

It is a perspective view of the box pallet in an assembly state. It is a perspective view of the box pallet in a folded state. It is a disassembled perspective view which shows the state which removed a pair of long side side wall part from the bottom wall structure part. It is a disassembled perspective view which shows the state which removed the one long side side wall part from the bottom wall structure part. It is a partial expansion perspective view of a long side insertion part. It is a partial expansion perspective view of a long side inserted part. It is a perspective view which shows the inner surface side of a long side insertion part and a long side insertion part. It is a perspective view including the partial cross section which shows the state by which the long side insertion part was inserted in the long side insertion part. It is a perspective view which shows the outer surface side of a long side insertion part and a long side insertion part. It is a partial enlarged plan view of a box pallet in a folded state.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 to 4 and the like, the box pallet 1 as a folding container includes a bottom wall portion 3 having a substantially rectangular shape in plan view, and a bottom wall portion 3 along each long side portion of the bottom wall portion 3. A bottom provided with a long side base portion 4 protruding upward and a short side base portion 5 (see FIG. 3) protruding upward from the bottom wall portion 3 along each short side portion of the bottom wall portion 3. A wall component 2 is provided. Further, the box pallet 1 is provided so as to be rotatable with respect to each of the long side side base part 4 and the long side side wall part 6 provided detachably with respect to each of the long side side base parts 4 and with respect to each of the short side side base parts 5. And a short side wall 7. The bottom wall portion 3 of the present embodiment has a pallet shape, and connects a plurality of support column portions 9, an upper deck portion 10 that connects the upper end portions of the support column portions 9, and a lower end portion of the support column portion 9. A fork insertion portion 12 that includes a lower deck portion 11 and into which a fork of a handlift or a forklift can be inserted is formed between the support portion 9 and the support portion 9. In the present embodiment, the pallet shape is a four-way insertion type in which a fork can be inserted from four side surfaces constituting the outer peripheral surface of the bottom wall portion 3. Moreover, in this embodiment, the bottom wall structure part 2, the long side wall part 6, and the short side wall part 7 are comprised with the polypropylene. Furthermore, the box pallet 1 of the present embodiment is a relatively large folding container in which each dimension of length × width × depth is 1,100 mm or more.

  As shown in FIG. 3 and the like, each of the long side wall portions 6 includes a long side base portion 14 having a substantially rectangular shape when viewed from the front, and a long side insertion portion protruding downward from the lower side portion of the long side base portion 14. 15 and a locking wall portion 16 projecting from the side portion of the inner surface of the long side base portion 14. In the present embodiment, in each long side wall portion 6, three long side insertion portions 15 are provided at a predetermined interval from each other.

  In the present embodiment, the long side wall portion 6 (specifically, the same applies to the short side wall portion 7 described later) is formed by welding the inner surface configuration portion and the outer surface configuration portion. Even when the side wall portion 6 is configured to be relatively large, sufficient strength is ensured. In addition, a groove (gap) is appropriately provided at the joint portion between the inner surface configuration portion and the outer surface configuration portion, and various burrs generated by welding the inner surface configuration portion and the outer surface configuration portion are various. It is configured not to be a hindrance to date.

  As shown in FIG. 5, FIG. 7, FIG. 9, etc., each long side insertion portion 15 includes an insertion protrusion 17 that protrudes laterally from the lower ends of the left and right side surfaces of the long side insertion portion 15. Yes. The insertion protrusion 17 of the present embodiment has a substantially quadrangular prism shape as a whole, and the vertical width and the width in the thickness direction of the long side wall 6 are substantially the same (substantially square in cross section).

  As shown in FIG. 3, FIG. 4, etc., each short-side side wall 4 includes a short-side base 18 having a substantially rectangular shape in front view and a short-side protruding downward from the lower side of the short-side base 18. The side insertion part 19 (refer FIG. 3) is provided. In the present embodiment, in each short side wall 7, three short side insertion portions 19 are provided at a predetermined interval from each other. Each short side insertion portion 19 includes a substantially cylindrical shaft portion (not shown) that protrudes laterally from the lower ends of the left and right side surfaces of the short side insertion portion 19.

  As shown in FIG. 3, FIG. 9, etc., the long side base portion 4 of the bottom wall constituting portion 2 extends along the long side portion of the bottom wall portion 3 and protrudes upward from the upper surface of the bottom wall portion 3. The base vertical wall portion 21, the long side receiving wall portion 22 projecting outward from the upper side portion of the long side base vertical wall portion 21, the lower surface of the long side receiving wall portion 22, and the upper surface of the bottom wall portion 3 And a long side base reinforcing rib 23 that connects the outer side of the long side base vertical wall portion 21 to each other. Further, the long side base portion 4 is provided with a long side inserted portion 24 into which the long side insertion portion 15 of the long side wall portion 6 is inserted. The long-side inserted portions 24 are provided at three locations corresponding to the three long-side inserted portions 15 provided on the long-side side wall 6. Furthermore, as shown in FIG. 6, FIG. 9, etc., each long side inserted part 24 forms a notch part from the long side receiving wall part 22 to the long side base vertical wall part 21, and the long side side A receiving wall portion 25 extending outward from the peripheral edge of the notch portion of the base vertical wall portion 21 is provided, an outer wall portion 26 is provided to connect the front end portions of the receiving wall portion 25, and the long side base vertical wall The inner wall 27 is provided so as to protrude from both side edges of the notch portion of the portion 21 so as to extend the long side base vertical wall portion 21.

  As shown in FIGS. 1 and 2, the long side wall 6 of the present embodiment is laid on the upright position standing above the long side base 4 and the center of the bottom wall component 2. It is provided so that the posture can be changed between the sleeping position. In the present embodiment, when the posture of the long side wall 6 is changed between the standing position and the laying position, as shown in FIG. 1 is removed, and the posture of the long side wall portion 6 is changed and attached to the bottom wall constituting portion 2.

  That is, when the long side wall portion 6 is in the standing position, the insertion protrusion 17 of the long side insertion portion 15 is connected to the long side insertion portion 24 of the long side base portion 4 as shown in FIG. Located between the inner wall 27 and the outer wall 26, the lower side of the long side base 14 is in contact with and supported by the upper surface of the long side base 4 (long side receiving wall 22). The Further, the insertion protrusion 17 has a substantially quadrangular prism shape, and the width in the thickness direction of the long side wall 6 is slightly smaller than the distance between the inner wall 27 and the outer wall 26. Therefore, in a state where the insertion protrusion 17 is inserted into the long side inserted portion 24 (between the inner wall portion 27 and the outer wall portion 26), the long side wall portion 6 cannot be rotationally displaced. ing.

  Further, the insertion protrusion 17 has a substantially square cross section, and the distance between the pair of left and right inner wall portions 27 of the long side insertion portion 15 is slightly longer than the lateral width of the long side insertion portion 15. Yes. For this reason, even if the long side wall 6 in the standing posture is turned 90 degrees inside the bottom wall component 2, the insertion protrusion 17 is connected to the inner wall 27 of the long insertion portion 24. The outer wall portion 26 can be inserted. That is, when the long side wall portion 6 is in the laying position, as shown in FIG. 10, the insertion protrusion 17 of the long side insertion portion 15 is connected to the long side insertion portion 24 of the long side base portion 4. The long side insertion portion 15 is located between the inner wall portion 27 and the outer wall portion 26, and the long side insertion portion 15 is interposed through a notch portion (a gap between the pair of left and right inner wall portions 27). The long side base vertical wall portion 21 protrudes toward the inner peripheral side of the bottom wall constituting portion 2.

  Moreover, although the upper surface of the long side base part 4 is basically a flat surface, as shown in FIG. 9 and the like, in this embodiment, the upper side part of the outer wall part 26 is configured to be one step lower. Yes. By providing the step, when the long side wall portion 6 is attached to the long side base portion 4, the tip of the long side insertion portion 15 is easily guided to the long side insertion portion 24, Since the upper opening of the long side inserted portion 24 is slightly expanded, the insertion protrusion 17 can be easily inserted into the long side inserted portion 24.

  As shown in FIG. 3, the short side base portion 5 is provided with a short side insertion portion 29 into which the short side insertion portion 19 of the short side wall portion 7 is inserted. The short side inserted portions 29 are provided at three locations corresponding to the three short side insertion portions 19 provided on the short side wall portion 7 individually. Each short side inserted portion 29 includes a bearing portion (not shown) that pivotally supports the shaft portion of the short side wall portion 7, and a standing position that stands above the short side base portion 5, It has a shape that allows displacement of the short side insertion portion 19 that pivots and displaces between the bottom wall constituting portion 2 and the laying position on the center portion side.

  In this embodiment, the protrusion length from the bottom wall part 3 of the short side base part 5 is shorter than the protrusion length from the bottom wall part 3 of the long side base part 4, and the short side inserted part 29 is It is located below the long side inserted portion 24. For this reason, when the box pallet 1 in the assembled state in which all the side wall portions 6 and 7 are in the upright position is set in the folded state in which all the side wall portions 6 and 7 are in the laying position, first, After the side wall portion 7 is set to the laying position, the long side wall portion 6 is set to the laying position so as to overlap the upper side of the short side wall portion 7.

  Further, in the present embodiment, when the pair of short side wall portions 7 are both in the laying position, the shaft portion of the short side insertion portion 19 is inserted into the short side side so that one is overlapped with the other upper side. In the state inserted in the part 29, it is comprised so that relative displacement is possible up and down, and it is comprised so that the height position of the short side wall part 7 in a laying position can be changed suitably. As for the long side insertion portion 15, the inner wall portion 27 and the outer wall portion 26 of the long side insertion portion 15 extend vertically, and the insertion protrusion 17 of the long side insertion portion 15 is connected to the inner wall portion 27. Between the outer wall part 26 (in the state inserted in the long side insertion part 24), it is comprised so that relative displacement can be carried out up and down (refer FIG. 8). Thereby, it is configured so that the height position of the long side wall portion 6 at the laying position can be changed as appropriate, and when both the pair of long side wall portions 6 are in the laying position, as shown in FIG. One can be overlaid on the other.

  Further, in the assembled state of the box pallet 1, the outer surface side of the short side wall 7 is brought into contact with and supported by the locking wall 16 of the long side wall 6 (FIGS. 3 and 4). reference). Furthermore, as shown in FIG. 4, the side portion on the outer surface side of the locking wall portion 16 in the short side wall portion 7 is formed with irregularities corresponding to the locking wall portion 16, and the box pallet 1 In the assembled state, the outer surface of the short side wall portion 7 and the outer surface of the locking wall portion 16 are configured to be substantially flush with each other. In addition, the short side wall portion 7 is configured to be able to contact from the outer surface side of the short side wall portion 7 and is provided so as to be able to protrude from the side portion of the short side base portion 18. Is installed. On the other hand, as shown in FIG. 3, the locking wall 16 of the long side wall 6 has the long side wall 6 and the short side wall 7 in the standing position, and is locked. An engagement recess 31 that is engaged with the lock member 30 when the member 30 protrudes from the side portion of the short side base portion 18 is provided. In addition, on the outer surface side of the short side wall 7, a finger hook 32 is provided that can be hooked with a fingertip when the short side wall 7 is rotationally displaced.

  In the case of storing the article in the folded box pallet 1, for example, first, the pair of long side wall portions 6 at the laying position are removed from the bottom wall constituting portion 2, and one long side wall portion is disposed. 6 is set in the standing posture and is attached to the long side base portion 4 to be self-supporting. Subsequently, the pair of short side wall portions 7 are rotationally displaced to be in an upright position, and are connected to the one long side wall portion 6 in the self-standing state by the lock member 30. Thereafter, after the article is accommodated in the box pallet 1, the other long side wall 6 is attached to the long side base 4 (as shown in FIG. 4), and the other long side wall is attached by the lock member 30. The part 6 and the short side wall part 7 are connected. As described above, the articles are stored in the box pallet 1.

  When the box pallet 1 is changed between the assembled state and the folded state, the pair of short side wall portions 7 are in the laying position, and at least one long side wall portion 6 is in the standing position. Can do. At this time, in order to reliably support the long side wall 6 in the standing position (maintain the free standing state of the long side wall 6 suitably), in this embodiment, as shown in FIG. A fall prevention protrusion 34 is provided on a boundary portion between the side surface of the long side insertion portion 15 and the lower side portion of the long side base portion 14. More specifically, in the present embodiment, the fall prevention protrusion 34 corresponds to the long side insertion portion 15 on both sides among the three long side insertion portions 15 provided on each long side wall portion 6. The long side insertion portion 15 is provided at a boundary portion between the outer side surface 15 a that is the side surface of the long side wall portion 6 and the lower side portion of the long side base portion 14. Further, as shown in FIG. 5 and the like, the fall prevention protrusion 34 is connected to the outer side surface 15a of the long side insertion portion 15 and the lower side portion of the long side base portion 14, respectively. Further, the protrusion length of the fall prevention protrusion 34 from the outer side surface 15a of the long side insertion portion 15 is the same as the protrusion length of the insertion protrusion 17 from the outer side surface 15a. It is slightly longer than the vertical width of the protrusion 17. In addition, the distance between the fall prevention protrusion 34 and the insertion protrusion 17 is longer than the thickness of the inner wall 27, and the length of the long side insertion part 15 (in this example, the upper end of the fall prevention protrusion 34). And the distance between the insertion protrusion 17 and the lower end of the insertion protrusion 17 is longer than twice the thickness of the long side wall 6. The long side insertion portion 15 including the insertion protrusion 17 and the fall prevention protrusion 34 are also configured by welding the inner surface configuration portion and the outer surface configuration portion.

  In addition, as shown in FIG. 8, when the long side wall portion 6 is in the standing position, the insertion protrusion 17 is positioned between the inner wall portion 27 of the long side insertion portion 15 and the outer wall portion 26. In addition, the fall prevention protrusion 34 is configured to be inserted between the inner wall portion 27 and the outer wall portion 26. The width of the fall prevention protrusion 34 in the thickness direction of the long side wall portion 6 is slightly shorter than the distance between the inner wall portion 27 and the outer wall portion 26, and the long side wall portion 6 is in the standing position. The fall prevention protrusion 34, the inner wall portion 27, and the outer wall portion 26 are in contact with or close to each other.

  On the other hand, as shown in FIG. 10, when the long side wall portion 6 is in the laying position, the insertion protrusion 17 is located between the inner wall portion 27 of the long side insertion portion 15 and the outer wall portion 26. The fall prevention protrusion 34 is configured to be located on the inner peripheral side of the bottom wall constituting portion 2 with respect to the inner wall portion 27.

  As described above in detail, according to the present embodiment, the fall prevention protrusion 34 is provided corresponding to the long side insertion portion 15 including the insertion protrusion 17, and the long side wall 6 is in the upright position. In this case, not only the insertion protrusion 17 of the long side insertion portion 15 but also the fall prevention protrusion 34 is inserted between the inner wall portion 27 and the outer wall portion 26 of the long side insertion portion 24. It is configured as follows. Thereby, when the long side wall portion 6 is in the standing position, the long side insertion portion 15 is supported by the inner wall portion 27 and the outer wall portion 26 at the upper portion and the lower portion thereof. For this reason, the rotation displacement of the long side insertion part 15, and by extension, the tilting displacement of the long side wall 6 can be prevented more reliably. Further, the fall prevention protrusion 34 can be provided corresponding to the long side insertion part 15 provided with the insertion protrusion 17 without any trouble in assembling the long side wall 6, and the fall prevention protrusion 34 is provided. Only by providing 34, the rotational displacement in the upper part of the long side insertion part 15 can be prevented reliably. Therefore, a configuration for preventing rotational displacement at the upper position of the long side insertion portion 15 is not provided separately from the long side insertion portion 15 where the insertion protrusion 17 is provided. You can do it. As a result, the self-standing state of the long side wall 6 can be suitably maintained while simplifying the configuration. Furthermore, by suitably maintaining the self-standing state of the long side wall 6, it is possible to avoid a situation in which the rotational displacement of the short side wall 7 is hindered by the long side wall 6. It is possible to improve the workability in assembling and folding the box pallet 1 and to stabilize the shape of the box pallet 1 in the assembled state.

  Further, because of the configuration for allowing the long side wall portion 6 to be self-supporting, it is possible to suppress a situation in which unevenness is formed at the mating portion between the long side wall portion 6 in the standing position and the bottom wall constituting portion 2. can do. Therefore, it is easy to form a gap between the long side wall portion 6 and the bottom wall constituting portion 2 due to the formation of the unevenness, and a situation in which the contents are caught in the gap portion is suppressed. be able to. Furthermore, since the long-side side wall 6 is configured to be self-supporting, it is possible to suppress a situation in which a hole is provided in the bottom wall component 2 (long-side base 4), and the hole is provided. Thus, it is possible to suppress a situation in which the strength of the long side base portion 4 is lowered. In addition, by simplifying the configuration for allowing the long side wall 6 to be independent, the mold for forming the long side wall 6 and the long side base 4 is simplified. It is possible to reduce the manufacturing cost. Even when the long side wall 6 is in the laying position, the insertion protrusion 17 is positioned between the inner wall 27 and the outer wall 26 to position the long side wall 6. be able to.

  Further, the fall prevention protrusion 34 is connected to the outer side surface 15 a of the long side insertion portion 15 and the lower side portion of the long side base portion 14. For this reason, the strength of the fall prevention protrusion 34 can be increased, and deformation or damage of the fall prevention protrusion 34 can be prevented. Therefore, it is possible to improve the durability of the fall prevention protrusion 34 and more stably support the long side wall portion 6 in the self-standing state. In particular, the long side wall 6 of the present embodiment is relatively large, and accordingly the weight is also relatively heavy. The effect of stabilizing the self-standing state of the side wall portion 6 is more remarkably exhibited.

  Further, as the position at which the fall prevention protrusion 34 is provided, the fall prevention protrusion 34 is provided corresponding to the upper end portion of the long side insertion portion 15. The effect of preventing the side wall portion 6 from being tilted and displaced is more effectively exhibited. Further, since the fall prevention protrusion 34 is provided to be connected to the long side insertion portion 15, for example, the fall prevention protrusion 34 is formed in comparison with the case where the fall prevention protrusion 34 is provided apart from the long side insertion portion 15. The long side insertion portion 24 to be inserted can be configured as compact as possible. Therefore, for example, it is possible to suppress a situation in which the strength of the peripheral portion of the long side inserted portion 24 is reduced due to the lateral width of the long side inserted portion 24 becoming too wide.

  Further, the fall prevention protrusion 34 corresponds to the long side insertion portion 15 on both sides among the three long side insertion portions 15 provided on the long side wall portion 6, and It is provided at a boundary portion between the outer side surface 15 a and the lower side portion of the long side base portion 14. For this reason, when a force is applied to the long side wall 6 in the upright position so as to be rotationally displaced with the vertical direction as the axial direction, the fall prevention protrusion 34 contacts the inner wall 27 and the outer wall 26. Thus, the rotational displacement of the long side wall portion 6 can be effectively prevented. Therefore, the self-standing state of the long side wall portion 6 and the assembled state of the box pallet 1 can be further stabilized.

  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, although each short side wall part 7 is connected with respect to the bottom wall structure part 2 so that rotation displacement is possible, for example, like the long side wall part 6, the standing position and In the case where the posture is changed between the laying position and the laying position, the short side wall portion 7 may be temporarily detached from the bottom wall constituting portion 2, changed in posture, and then attached to the bottom wall constituting portion 2. Good.

  Moreover, in the said embodiment, you may comprise the long side wall part 6 so that rotation displacement is possible in the state in which the insertion protrusion 17 was inserted in the long side insertion part 24. FIG. That is, the insertion protrusion 17 can be rotated between the inner wall portion 27 and the outer wall portion 26 by making the insertion protrusion 17 cylindrical, and the long side wall portion 6 is changed from the standing position to the sleeping position. Next, the long side wall 6 is slightly lifted, the fall prevention protrusion 34 is extracted upward from between the inner wall 27 and the outer wall 26, and in this state, the long side wall 6 is tilted inward and inserted. You may comprise so that the long side wall part 6 can be made into a sleeping position by sliding the protrusion 17 below. Furthermore, when the said structure is employ | adopted, the long side wall part which was set to the inner side of the long side insertion part 24 and the sleeping position so that the insertion protrusion 17 may not slip out from the long side insertion part 24 A stopper may be provided at a position above the six insertion protrusions 17. In the case of adopting this configuration, the long-side side wall portion 6 in the standing position is prevented from falling in a position above the stopper in the long-side inserted portion 24 (the space between the inner wall portion 27 and the outer wall portion 26). The protrusion 34 is inserted.

  (B) In the above embodiment, at the boundary between the long side insertion portion 15 and the long side base portion 14, the fall prevention protrusions 34 are provided on the side surface of the long side insertion portion 15 and the long side base portion. 14, but when the long side wall 6 is in the upright position, the fall prevention protrusion 34 is inserted between the inner wall 27 and the outer wall 26. It suffices to be configured. For example, the fall prevention protrusion 34 may be configured to protrude slightly from the side of the long side insertion portion 15 while being spaced slightly downward from the long side base portion 14 or slightly from the long side insertion portion 15. You may comprise so that it may space apart and it may protrude from the lower side part of the long side base part 14. FIG.

  (C) In the above embodiment, the bottom wall portion 3 of the bottom wall constituting portion 2 is embodied as a pallet-shaped box pallet 1 as a folding container, but for example has a fork insertion portion 12. You may apply to a folding container provided with the bottom wall component which is not. Further, as the shape of the bottom wall portion 3, a pallet shape in which the lower deck portion 11 is omitted, or a two-way insertion type pallet shape in which a fork can be inserted from two side surfaces constituting the outer peripheral surface of the bottom wall portion 3. Also good. Furthermore, in the said embodiment, although the long side base part 4 and the short side base part 5 are integrally formed with the upper deck part 10 grade | etc., The long side side base part 4 and short side The side base 5 may be configured separately from the bottom wall 3 and may be configured to be connectable to the bottom wall 3. In addition, the size and shape of the box pallet 1 are not particularly limited. The box pallet 1 includes the bottom wall constituting portion 2, the long side wall portion 6, and the short side wall portion 7, and can be folded. It only has to be configured.

  (D) In the above embodiment, three long side insertion portions 15 of the long side wall portion 6 are provided. However, the long side insertion portions 15 provided on the side wall portions 6 and 7 and the short sides are provided. The number and arrangement of the side insertion portions 19 are not particularly limited, and the design can be appropriately changed according to the size of the side wall portions 6 and 7.

  Moreover, in the said embodiment, corresponding to the long side insertion part 15 of both sides among the three long side insertion parts 15 provided in the long side wall part 6, the long side insertion part 15 of the said long side side insertion part 15 is provided. Although the fall prevention protrusion 34 is provided in the boundary part of the outer side surface 15a and the lower side part of the long side base part 14, in addition to this structure or instead, the long side insertion part 15 of both sides Of the long side wall portion 6 is provided with a fall prevention protrusion 34 corresponding to the side surface of the central portion in the width direction, or on the long side insertion portion 15 provided between the long side insertion portions 15 on both sides. Correspondingly, a fall prevention protrusion 34 may be provided.

  (E) In the above embodiment, the box pallet 1 is made of polypropylene, but may be made of other resin materials such as polyethylene, PET, and polyamide.

  DESCRIPTION OF SYMBOLS 1 ... Box pallet, 2 ... Bottom wall structure part, 3 ... Bottom wall part, 4 ... Long side side base part, 5 ... Short side side base part, 6 ... Long side side wall part, 7 ... Short side wall part DESCRIPTION OF SYMBOLS 14 ... Long side base part, 15 ... Long side insertion part, 15a ... Outer side surface, 17 ... Insertion protrusion, 24 ... Long side insertion part, 26 ... Outer wall part, 27 ... Inner wall part, 34 ... Prevention of fall Protrusion.

Claims (3)

A bottom wall component having a substantially rectangular shape in plan view;
Corresponding to each side part of the bottom wall constituent part, an upright position standing above the side part of the bottom wall constituent part, and a laying position laid down on the center part side of the bottom wall constituent part And a side wall provided so that the posture can be changed between,
The side wall portion includes a plurality of insertion portions protruding downward from a lower side portion,
The bottom wall constituting portion includes a plurality of inserted portions that open upward and are capable of inserting the insertion portions.
With respect to at least one side wall portion of the side wall portions, the insertion portion provided on the side wall portion includes lower end portions on both side surfaces of the insertion portion, or insertion protrusions protruding sideways from the vicinity thereof,
The inserted portion includes an inner wall portion provided so as to sandwich the insertion protrusion in the inner and outer peripheral directions of the bottom wall constituting portion, and an outer wall portion,
The inner wall portion and the outer wall portion extend vertically, and the insertion protrusion is configured to be relatively displaceable vertically between the inner wall portion and the outer wall portion,
A fall prevention protrusion is provided at the boundary portion between the side surface of the insertion portion provided with the insertion protrusion and the lower side portion of the side wall portion, or in the vicinity thereof,
In the case where the side wall portion is in the laying position, the insertion protrusion is positioned between the inner wall portion and the outer wall portion, and the fall prevention protrusion is located on the bottom wall constituting portion rather than the inner wall portion. Located on the inner circumference side,
When the side wall portion is in the standing position, the insertion protrusion is positioned between the inner wall portion and the outer wall portion, and the fall prevention protrusion is formed between the inner wall portion and the outer wall portion. A collapsible container, wherein the collapsible prevention protrusion, the inner wall portion, and the outer wall portion are in contact with each other or close to each other.   The fall prevention protrusion is provided at a boundary portion between the side surface of the insertion portion and the lower side portion of the side wall portion, and is connected to the side surface of the insertion portion and the lower side portion of the side wall portion. The folding container according to claim 1.   The fall prevention protrusion corresponds to the insertion part on both sides among the plurality of insertion parts provided on the side wall part, and is an outer side which is a side surface side of the side wall part of the insertion part. The folding container according to claim 1 or 2, wherein the folding container is provided corresponding to a side surface.

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