Transport containers

Abstract

We propose a transport container with an easily affixable label to the outer surface of its side wall. [Solution] The transport container 1 comprises a bottom wall 2, a frame-shaped opening 3 located above the bottom wall 2 in plan view, a plurality of side walls 4 provided between the opening 3 and the bottom wall 2, and retaining protrusions 6 provided on the plurality of side walls 4 to hold partition walls 5 that divide the inner space S1 surrounded by the plurality of side walls 4 into a plurality of spaces. The outer surface of the portion of the plurality of side walls 4 on which the retaining protrusions 6 are provided is a flat surface.

Description

Technical Field

[0001] The present disclosure relates to a transport container.

Background Art

[0002] Patent Document 1 describes a folding container. This folding container includes a bottom wall, an upper frame, a pair of first side walls that are hinged to the upper frame and can be folded, and a pair of second side walls that are hinged to the upper frame and the bottom wall and can be folded in half. The folding container further includes a partition plate disposed between the pair of second side walls and partitioning the space between the pair of first side walls into a plurality of regions.

[0003] On each of the pair of second side walls, an engaged portion is provided that engages in a concave-convex manner with an engaging protrusion protruding from the partition plate.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in the folding container described in Patent Document 1, an engaged portion is formed by deforming a part of each of the pair of second side walls so as to protrude outward and open inward, and the outer surface of the portion where the engaged portion is provided on the pair of second side walls bulges. Therefore, in this folding container, there is a problem that it is difficult to attach a label indicating information of the contents to be stored in the container on the outer surface of the pair of second side walls.

[0006] In view of the above circumstances, an object of the present disclosure is to provide a transport container to which a label can be easily attached to the outer surface of a side wall.

Means for Solving the Problems

[0007] A transport container according to one embodiment of the present disclosure comprises a bottom wall, a frame-shaped opening in plan view located above the bottom wall, and a plurality of side walls provided between the opening and the bottom wall. The transport container according to one embodiment further comprises retaining protrusions provided on the plurality of side walls for holding partition walls that divide the inner space surrounded by the plurality of side walls into a plurality of spaces. The outer surface of the portion of the plurality of side walls on which the retaining protrusions are provided is a flat surface. [Effects of the Invention]

[0008] In one embodiment of the transport container relating to this disclosure, labels can be easily affixed to the outer surface of the side wall. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a perspective view showing a transport container according to one embodiment. [Figure 2] Figure 2 is a perspective view showing the transport container with the partition wall removed. [Figure 3] Figure 3 is a perspective view showing the transport container shown in Figure 2 in a folded state. [Figure 4] Figure 4 is a cross-sectional view along line AA in Figure 2. [Figure 5] Figure 5 is an enlarged view of section B in Figure 4. [Figure 6] Figure 6 is a magnified view of the main parts of Figure 5. [Figure 7] Figure 7 is a cross-sectional view along the CC line in Figure 5. [Figure 8] Figure 8 is a cross-sectional view of the DD line in Figure 5. [Figure 9] Figure 9 is a cross-sectional view along the EE line in Figure 2. [Figure 10] Figure 10 is a cross-sectional view along the FF line in Figure 3. [Modes for carrying out the invention]

[0010] (One embodiment) 1. Overview The transport container 1 in one embodiment shown in Figure 1 comprises a bottom wall 2, a frame-shaped opening 3 located above the bottom wall 2 in plan view, and a plurality of side walls 4 provided between the opening 3 and the bottom wall 2. The transport container 1 further comprises retaining protrusions 6 provided on the plurality of side walls 4, which hold partition walls 5 that divide the inner space S1 surrounded by the plurality of side walls 4 into multiple spaces. The outer surface of the portion of the plurality of side walls 4 on which the retaining protrusions 6 are provided is a flat surface.

[0011] In one embodiment of the transport container 1 having the above configuration, the outer surface of the portion where the retaining projection 6 is provided is a flat surface, making it easy to attach labels to the outer surface of the side wall.

[0012] 2.Details Next, the transport container 1 of this embodiment, shown in Figures 1 to 10, will be described in more detail with reference to the drawings. As shown in Figure 1, the transport container 1 of this embodiment comprises a bottom wall 2, a frame-shaped opening 3 located above the bottom wall 2 in plan view, and a plurality of side walls 4 provided between the opening 3 and the bottom wall 2. The transport container 1 further comprises retaining protrusions 6 provided on the plurality of side walls 4, which hold partition walls 5 that divide the inner space S1 surrounded by the plurality of side walls 4 into multiple spaces. The outer surface of the portion of the plurality of side walls 4 on which the retaining protrusions 6 are provided is a flat surface.

[0013] Here, the statement that the outer surface of the portion of the multiple side walls 4 on which the retaining projection 6 is provided is a flat surface does not only mean that the entire outer surface of this portion is flat, but also that the entire remaining outer surface of this portion, excluding a portion, is flat.

[0014] The multiple side walls 4 are rotatably connected to the opening frame 3 and the bottom wall 2, respectively, and include a pair of foldable bendable walls 7 and a pair of swingable walls 8 that are rotatably connected to the opening frame 3 and can engage with the bottom wall 2.

[0015] The transport container 1 has a substantially rectangular parallelepiped box shape with an open top surface. The transport container 1 can be deformed between an assembled state (see FIGS. 1 and 2) in which a plurality of side walls 4 stand on the outer peripheral portion of the bottom wall 2 and a folded state (see FIG. 3) in which a plurality of side walls 4 are stacked on the bottom wall 2 in a lying posture. Hereinafter, based on the transport container 1 in the assembled state shown in FIG. 1, the longitudinal direction of the transport container 1 in plan view is defined as the left-right direction, the short-side direction of the transport container 1 in plan view is defined as the front-rear direction, and the direction orthogonal to the front-rear direction and the left-right direction is defined as the up-down direction, and each component will be described.

[0016] 2-1. Bottom Wall The bottom wall 2 has a rectangular plate shape. The bottom wall 2 is made of synthetic resin. As shown in FIG. 4, the bottom wall 2 integrally has a rectangular plate-shaped bottom wall body 20 that constitutes the main body of the bottom wall 2, a rectangular frame-shaped lower frame 21 that protrudes upward from the outer peripheral edge of the bottom wall body 20, and a lattice-shaped rib 22 that protrudes downward from the lower surface of the bottom wall body 20.

[0017] As shown in FIGS. 2 and 4, the lower frame 21 includes two linear portions 21a on the long side extending linearly in the left-right direction and two linear portions 21b on the short side extending linearly in the front-rear direction. The lower end portions of the folding walls 7 are rotatably connected to each of the two linear portions 21a on the long side. A plurality of bottom wall side connecting portions 23 to which a plurality of lower connecting portions 76 provided at the lower end portions of the folding walls 7 are rotatably connected are provided on each of the two linear portions 21a on the long side.

[0018] The lower end portions of the swing walls 8 are engagably connected to each of the two linear portions 21b on the short side. Two engaged portions (not shown) are provided at intervals in the front-rear direction at the center in the front-rear direction of each of the two linear portions 21b on the short side.

[0019] 2-2. Mouth Frame As shown in FIG. 2, the mouth frame 3 is located above the bottom wall 2 and has a rectangular frame shape in plan view. The mouth frame 3 has an opening 30 inside thereof. The mouth frame 3 is made of synthetic resin.

[0020] The opening frame 3 integrally comprises two long side portions 31 extending linearly in the left-right direction and two short side portions 32 extending linearly in the front-back direction.

[0021] The upper end of the bent wall 7 is rotatably connected to each of the two longer side portions 31. Each of the two longer side portions 31 is provided with a plurality of first connecting portions 33 to which the upper end of the bent wall 7 is rotatably connected.

[0022] The upper end of the swinging wall 8 is rotatably connected to each of the two shorter sections 32. Each of the two shorter sections 32 is provided with a plurality of second connecting sections 34 to which the upper end of the swinging wall 8 is rotatably connected.

[0023] 2-3. Bent Wall As shown in Figures 2 and 3, each of the pair of foldable walls 7 is rotatably connected to the opening frame 3 and the bottom wall 2, respectively, and is foldable. The length of the foldable wall 7 in the left-right direction is longer than the length of the swinging wall 8 in the front-back direction.

[0024] Each of the pair of bent walls 7 includes an upper side wall 7a rotatably connected to the opening frame 3, and a lower side wall 7b rotatably connected to the upper side wall 7a and the bottom wall 2, respectively. The upper side wall 7a and the lower side wall 7b are each made of synthetic resin.

[0025] Each of the pair of folding walls 7 can be transformed between an assembled state in which the upper side wall 7a and the lower side wall 7b are arranged in a single plate-like shape, and a folded state in which the upper side wall 7a and the lower side wall 7b are stacked in a folded shape. In the assembled state, the upper side wall 7a and the lower side wall 7b are erected on the long side portion 21a of the lower frame 21 of the bottom wall 2. In the folded state, the upper side wall 7a and the lower side wall 7b are stacked on top of the bottom wall body 20 of the bottom wall 2 and fit into the space inside the lower frame 21 of the bottom wall 2 and the opening frame 3.

[0026] As shown in Figure 4, the upper end of the upper side wall 7a is provided with a plurality of upper connecting parts 70 that are rotatably connected to a plurality of first connecting parts 33 of the long side portion 31 of the mouth frame 3. The plurality of upper connecting parts 70 are positioned at intervals in the left-right direction. Each of the plurality of upper connecting parts 70 is a recessed portion formed in the upper end of the upper side wall 7a. As shown in Figure 8, each of the plurality of upper connecting parts 70 is provided with a rotation axis 700. The upper side wall 7a rotates relative to the lower side wall 7b about the rotation axis 700.

[0027] As shown in Figure 4, the lower end of the upper side wall 7a is provided with a plurality of intermediate upper connecting portions 71 that are rotatably connected to the upper end of the lower side wall 7b. The plurality of intermediate upper connecting portions 71 are positioned at intervals in the left-right direction.

[0028] As shown in Figure 8, a transverse rib 72 extending in the lateral direction (i.e., left-right direction) is provided on the upper part of the outer surface of the upper side wall 7a (i.e., the surface facing away from the inner space S1). The transverse rib 72 is located adjacent to the lower part of the upper connecting portion 70.

[0029] Three transverse ribs 73 extending laterally are provided on the lower part of the outer surface of the upper side wall 7a. The three transverse ribs 73 are spaced apart in the vertical direction. The uppermost transverse rib 73a is located above the intermediate upper connecting portion 71, the middle transverse rib 73b is continuous with the intermediate upper connecting portion 71, and the lowermost transverse rib 73c is located below the intermediate upper connecting portion 71 and is provided at the lower end of the upper side wall 7a.

[0030] As shown in Figures 2 and 8, a plurality of connecting vertical ribs 74 are further provided on the lower part of the outer surface of the upper side wall 7a, connecting the horizontal ribs 73a and 73b. The plurality of connecting vertical ribs 74 are positioned at intervals in the left-right direction. The plurality of connecting vertical ribs 74 are located above the intermediate upper connecting portion 71.

[0031] The outer surface of the upper side wall 7a is flat in the portion between the transverse ribs 72 and 73a. Furthermore, the entire remaining portion of the outer surface of the upper side wall 7a, excluding the left and right ends, is also flat. Here, a flat surface is not limited to a perfectly flat surface; it may also be a surface with slight irregularities, as long as it is easy to attach labels to.

[0032] The upper end of the lower side wall 7b is provided with a plurality of intermediate lower connecting parts 75 that are rotatably connected to a plurality of intermediate upper connecting parts 71 of the upper side wall 7a. The plurality of intermediate lower connecting parts 75 are positioned at intervals in the left-right direction. Each of the plurality of intermediate lower connecting parts 75 has a pivot axis. The lower side wall 7b rotates relative to the upper side wall 7a about this pivot axis.

[0033] As shown in Figure 4, the lower end of the lower side wall 7b is provided with a plurality of lower connecting parts 76 that are rotatably connected to a plurality of bottom wall side connecting parts 23 of the bottom wall 2. The plurality of lower connecting parts 76 are spaced apart in the left-right direction. The plurality of lower connecting parts 76 include two lower connecting parts 76a and 76b located in the left-right central part of the lower side wall 7b.

[0034] As shown in Figure 8, the upper part of the lower side wall 7b is provided with a transverse rib 77 that protrudes outward and extends laterally. The transverse rib 77 is located below the multiple intermediate lower connecting portions 75.

[0035] As shown in Figures 2 and 8, the upper part of the lower side wall 7b has a flat overlapping portion 78 that extends upward from the tip (i.e., outer end) of the transverse rib 77. The overlapping portion 78 is the part that overlaps the front of the lower end of the upper side wall 7a (more specifically, the part below the transverse rib 73b) when the bent wall 7 is in the assembled state. Multiple intermediate lower connecting portions 75 are provided on the overlapping portion 78.

[0036] The lower part of the lower side wall 7b is provided with a transverse rib 79 that protrudes outward and extends laterally. Multiple lower connecting portions 76 protrude downward from the transverse rib 79.

[0037] The outer surface of the lower side wall 7b is flat in the portion between the transverse ribs 77 and 79. Furthermore, the entire remaining portion of the outer surface of the lower side wall 7b, excluding the left and right ends, is also flat.

[0038] 2-4. Oscillating Wall As shown in Figure 2, each of the pair of oscillating walls 8 is made of a single plate-like member. Each of the pair of oscillating walls 8 is made of synthetic resin. The pair of oscillating walls 8 are identical in shape. The pair of oscillating walls 8 are positioned spaced apart in the left-right direction. Below, the oscillating wall 8 located on the right side of the pair will be described in detail.

[0039] As shown in Figures 2, 4, and 9, the rocking wall 8 comprises a rectangular plate-shaped main plate 80 that forms its main body, a connecting end 81 provided at the upper end of the main plate 80, and an engaging end 82 provided at the lower end of the main plate 80. The rocking wall 8 further comprises a pair of reinforcing parts 83 provided at the left and right ends of the main plate 80.

[0040] The connecting end 81 is provided with a plurality of connecting parts 810 that are rotatably connected to a plurality of second connecting parts 34 of the short side portion 32 of the opening frame 3. The plurality of connecting parts 810 are spaced apart in the front-rear direction. The plurality of connecting parts 810 include a rotation axis (not shown). The oscillating wall 8 rotates around this rotation axis. The connecting end 81 is further provided with a grid-like rib 84 (see Figure 4) that protrudes outward from the outer surface of the upper end of the main plate 80. The connecting end 81 is further provided with a handle 85 (see Figure 4) that protrudes outward from the center in the front-rear direction of the outer surface of the upper end of the main plate 80. The handle 85 has an arc shape with its lower surface convex upward. The rib 84 and the handle 85 are located side by side in the front-rear direction.

[0041] An engaging portion (not shown) is integrally formed at the center of the engaging end 82 in the front-rear direction. The engaging portion is a part that engages with the two engaged portions of the bottom wall 2 from the inside in the left-right direction (left side in the figure) so as to be detachable. The engaging end 82 is further provided with a grid-like rib 86 (see Figure 4) that protrudes outward from the outer surface of the lower end of the main plate 80.

[0042] As shown in Figure 2, each of the pair of reinforcing parts 83 is provided at the front-rear end of the main plate 80 and has a bulge 830 that is convex outward in the left-right direction and concave inward in the left-right direction (i.e., towards the inner space S1), and a grid-like rib 831 provided on the outer surface inward in the front-rear direction from the bulge 830. The bulge 830 and the rib 831 are provided integrally.

[0043] The outer surface of the swinging wall 8 is flat in the area between the handle 85 and the rib 86 at the lower end. Additionally, the outer surface of the swinging wall 8 is flat in the area between the pair of reinforcing parts 83.

[0044] As shown in Figure 8, the lower ends of the front and rear ends of the swinging wall 8 are each provided with inclined surfaces 87 that guide the wall to ride up onto the retaining projection 6.

[0045] 2-5. Holding protrusion As shown in Figure 1, the retaining projection 6 holds the partition wall 5 that divides the inner space S1, surrounded by multiple side walls 4, into multiple spaces.

[0046] As shown in Figures 1 and 2, the retaining projection 6 has an upper projection 6a provided on the upper side wall 7a of the bent wall 7 and a lower projection 6b provided on the lower side wall 7b. The retaining projection 6 further has a swing wall projection 6c provided on the swing wall 8. The upper projection 6a, the lower projection 6b, and the swing wall projection 6c have a common structure.

[0047] Each of the upper projection 6a, the lower projection 6b, and the oscillating wall projection 6c is composed of a pair of vertical ribs 60, 61 that protrude from the inner surface 40 of the side wall 4 toward the inner space S1 and extend in the vertical direction.

[0048] The pair of vertical ribs 60 and 61 are configured to hold the partition wall 5 by sandwiching it in the thickness direction. Here, the distance between the pair of vertical ribs 60 and 61 in the left-right direction may be the same as the thickness of the partition wall 5, or it may be slightly longer than the thickness of the partition wall 5.

[0049] As shown in Figure 5, each of the pair of vertical ribs 60, 61 has a plate-shaped main body portion 600, 610 that extends in a straight line in the vertical direction, and upper ends 601, 611 that extend diagonally upward from the upper ends of the main body portion 600, 610. The upper ends 601, 611 extend diagonally upward from the upper ends of the main body portion 600, 610 such that the spacing between them widens towards the upper part.

[0050] As shown in Figures 5 and 7, the main body sections 600 and 610 each have a constant cross-sectional shape perpendicular to the vertical direction along their entire length in the vertical direction. The cross-sectional shape perpendicular to the vertical direction of each of the main body sections 600 and 610 is trapezoidal. The opposing surfaces 602 and 612 of the main body sections 600 and 610 are inclined with respect to the inner surface 40 of the side wall 4 such that the gap between them widens towards the tip side (front side in Figure 7) in the protruding direction.

[0051] The outer surfaces 603 and 613 of the main body portions 600 and 610, which face away from the opposing surfaces 602 and 612, are inclined with respect to the inner surface 40 of the side wall 4 such that the gap between them narrows towards the tip end in the protruding direction. The tip ends 604 and 614 of the main body portions 600 and 610 in the protruding direction are approximately parallel to the inner surface 40 of the side wall 4.

[0052] As shown in Figure 5, the upper ends 601 and 611 are located at the tip in the protruding direction (i.e., towards the inner space S1) and have tip surfaces 605 and 615 that are flush with and continuous with the tip surfaces 604 and 614 of the main body portions 600 and 610 in the protruding direction.

[0053] In the pair of vertical ribs 60, 61 that constitute the upper projection 6a, the upper ends 601, 611 further have inclined surfaces 606, 616 that are continuous with the tip surfaces 605, 615 as surfaces facing the projection direction, and the amount of protrusion from the inner surface 40 of the side wall 4 decreases as the portion further away from the tip surfaces 605, 615. The upper ends of the inclined surfaces 606, 616 (the ends opposite to the side continuous with the tip surfaces 604, 614) are continuous with the inner surface 40 of the side wall 4.

[0054] In the pair of vertical ribs 60, 61 that constitute the lower projection 6b, the upper ends 601, 611 further have inclined surfaces 606, 616. The upper ends of the inclined surfaces 606, 616 are located away from the inner surface 40 of the side wall 4.

[0055] As shown in Figure 5, the upper ends 601, 611 have opposing upper surfaces 607, 617 and opposing upper outer surfaces 608, 618 facing away from the opposing upper surfaces 607, 617. The opposing upper surfaces 607 and 608 are inclined with respect to the inner surface 40 of the side wall 4 such that the gap between them narrows towards the tip in the protruding direction. Similarly, the opposing upper surfaces 617 and 618 are inclined with respect to the inner surface 40 of the side wall 4 such that the gap between them narrows towards the tip in the protruding direction. The gap between the opposing upper surfaces 607, 617 widens towards the upper portion.

[0056] As shown in Figure 4, in this embodiment, the upper projection 6a includes a central upper projection 62 located in the center of the upper side wall 7a in the left-right direction, a pair of end-side upper projections 63 located at the left-right ends of the upper side wall 7a, and a pair of intermediate upper projections 64 located between the central upper projection 62 and the pair of end-side upper projections 63. The central upper projection 62, the pair of end-side upper projections 63, and the pair of intermediate upper projections 64 are positioned offset in the left-right direction from the plurality of intermediate upper connecting portions 71.

[0057] The central upper projection 62 is positioned to divide the upper side wall 7a into two sections in the left-right direction. The pair of intermediate upper projections 64 are positioned to divide the upper side wall 7a into three sections in the left-right direction. The central upper projection 62 and the pair of end-side upper projections 63 are positioned to divide the upper side wall 7a into four sections in the left-right direction.

[0058] The lower projection 6b is located directly below the upper projection 6a and is positioned vertically alongside the upper projection 6a. The upper projection 6a and the lower projection 6b are located adjacent to each other in the vertical direction (with a small gap between them). The upper projection 6a extends to the lower edge of the inner surface of the upper side wall 7a, and the lower projection 6b extends to the upper edge of the inner surface of the lower side wall 7b. As shown in Figures 5 and 6, the distance L1 between the upper ends of the pair of vertical ribs 60, 61 of the lower projection 6b is longer than the distance L2 between the lower ends of the pair of vertical ribs 60, 61 of the upper projection 6a. Furthermore, the inclination angles β1, β2 of the upper ends 601, 611 of the pair of vertical ribs 60, 61 of the lower projection 6b with respect to the vertical are smaller than the inclination angles α1, α2 of the upper ends 601, 611 of the pair of vertical ribs 60, 61 of the upper projection 6a with respect to the vertical. As a result, when inserting the partition wall 5 from between the pair of vertical ribs 60, 61 of the upper projection 6a to between the pair of vertical ribs 60, 61 of the lower projection 6b, the partition wall 5 is less likely to get caught on the upper ends 601, 611 of the pair of vertical ribs 60, 61 of the lower projection 6b. The inclination angles α1, α2, β1, β2 are the angles that the outer edges in the front-rear direction of the upper opposing surfaces 607, 617 of the upper ends 601, 611 make with respect to the vertical direction.

[0059] The left-right outer dimension (i.e., maximum outer dimension) L3 of the upper ends 601, 611 of the pair of vertical ribs 60, 61 of the lower projection 6b is shorter than the left-right outer dimension (i.e., maximum outer dimension) L4 of the upper ends 601, 611 of the pair of vertical ribs 60, 61 of the upper projection 6a. As a result, when loading or unloading contents into the inner space S1 of the transport container 1, the contents are less likely to get caught on the upper end of the lower projection 6b.

[0060] As shown in Figure 4, in this embodiment, the lower projection 6b includes a central lower projection 65 located in the center of the lower side wall 7b in the left-right direction, a pair of end-side lower projections 66 located at the left-right ends of the lower side wall 7b, and a pair of intermediate lower projections 67 located between the central lower projection 65 and the pair of end-side lower projections 66.

[0061] The central lower projection 65 is positioned to divide the lower side wall 7b into two sections in the left-right direction. The pair of intermediate lower projections 67 are positioned to divide the lower side wall 7b into three sections in the left-right direction. The central lower projection 65 and the pair of end-side lower projections 66 are positioned to divide the lower side wall 7b into four sections in the left-right direction.

[0062] A central lower projection 65 is located directly below the central upper projection 62, a pair of end-side lower projections 66 are located directly below the pair of end-side upper projections 63, and a pair of intermediate lower projections 67 are located directly below the pair of intermediate upper projections 64.

[0063] The two lower connecting portions 76a and 76b, located in the left-right center of the lower end of the lower side wall 7b, are positioned offset in the left-right direction from the central lower projection 65.

[0064] In each of the central upper projection 62, the pair of intermediate upper projections 64, the central lower projection 65, and the pair of intermediate lower projections 67, a pair of vertical ribs 60 and 61 are provided symmetrically.

[0065] Each of the pair of end-side upper projections 63 and the pair of end-side lower projections 66 is located within the swing range of the pair of swing walls 8, that is, within the range in which the pair of swing walls 8 come into contact when they swing. On each of the pair of end-side upper projections 63 and the pair of end-side lower projections 66, the pair of longitudinal ribs 60, 61 are not provided symmetrically to guide the swing walls 8 to ride up.

[0066] As shown in Figure 5, at the rightmost upper projection 63 and lower projection 66, the angle between the outer surface 613 of the main body 610 of the right vertical rib 61 and the inner surface 40 of the side wall 4 is greater than the angle between the outer surface 603 of the main body 600 of the left vertical rib 60 and the inner surface 40 of the side wall 4. Also, the angle between the upper outer surface 618 of the upper end 611 of the right vertical rib 61 and the inner surface 40 of the side wall 4 is greater than the angle between the upper outer surface 608 of the upper end 601 of the left vertical rib 60 and the inner surface 40 of the side wall 4.

[0067] As shown in Figure 4, the upper end projection 63 and lower end projection 66 on the left end are provided symmetrically to the upper end projection 63 and lower end projection 66 on the right end. In other words, at each of the upper end projection 63 and lower end projection 66 on the left end, the angle between the outer surface 603 of the main body 600 of the left vertical rib 60 and the inner surface 40 of the side wall 4 is greater than the angle between the outer surface 613 of the main body 610 of the right vertical rib 61 and the inner surface 40 of the side wall 4. Also, the angle between the upper outer surface 608 of the upper end 601 of the left vertical rib 60 and the inner surface 40 of the side wall 4 is greater than the angle between the upper outer surface 618 of the upper end 611 of the right vertical rib 61 and the inner surface 40 of the side wall 4.

[0068] As shown in Figure 6, the inclination angle β2 of the upper end 611 of the longitudinal rib 61 on the right end of the lower projection 66 is greater than the inclination angle β1 of the upper end 601 of the longitudinal rib 60 on the right end of the lower projection 66. Similarly, the inclination angle β1 of the upper end 601 of the longitudinal rib 60 on the left end of the lower projection 66 is greater than the inclination angle β2 of the upper end 611 of the longitudinal rib 61 on the left end of the lower projection 66.

[0069] In each of the central lower projection 65 and the pair of intermediate lower projections 67, the inclination angle β1 of the upper end 601 of the longitudinal rib 60 with respect to the vertical direction and the inclination angle β2 of the upper end 611 of the longitudinal rib 61 with respect to the vertical direction are the same.

[0070] As shown in Figures 5 and 8, in the lower projection 6b, the lower ends of the tip surfaces 604 and 614 of the main body portions 600 and 610 of the pair of vertical ribs 60 and 61 are inclined so that the lower portion is closer to the inner surface 40 (located towards the front in Figure 8).

[0071] The upper projection 6a is provided on the upper side wall 7a from the portion below and adjacent to the upper transverse rib 72 to the lower end of the upper side wall 7a. The portion of the upper projection 6a above the transverse rib 73a is provided on the portion of the upper side wall 7a where the outer surface is flat. The portion of the upper projection 6a below the transverse rib 73a is provided on the portion of the upper side wall 7a where the transverse ribs 73a, 73b, and 73c protrude from the outer surface.

[0072] Of the upper projection 6a, the length of the portion below the transverse rib 73a is shorter than the length of the portion above the transverse rib 73a. More than half of the vertical length of the upper projection 6a is provided on the portion of the upper side wall 7a whose outer surface is a flat surface.

[0073] The lower projection 6b is provided on the inner surface of the lower side wall 7b, from the portion where the transverse rib 77 is provided to the portion where the transverse rib 79 is provided. In other words, the entire remaining portion of the lower projection 6b, excluding the upper and lower ends, is provided on the inner surface of the portion of the lower side wall 7b where the outer surface is a flat surface.

[0074] As shown in Figure 4, the central upper projection 62, the pair of end-side upper projections 63, the pair of intermediate upper projections 64, the central lower projection 65, the pair of end-side lower projections 66, and the pair of intermediate lower projections 67 are provided on the upper side wall 7a and the lower side wall 7b in the above-described positional relationship.

[0075] In the transport container 1 of this embodiment, as shown in Figure 2, the entire outer surface of the upper side wall 7a, including the outer surface of the portion where the central upper projection 62, the pair of end-side upper projections 63, and the pair of intermediate upper projections 64 are provided, is a flat surface in the left-right direction. Similarly, the entire outer surface of the lower side wall 7b, including the outer surface of the portion where the central lower projection 65, the pair of end-side lower projections 66, and the pair of intermediate lower projections 67 are provided, is a flat surface in the left-right direction.

[0076] Therefore, labels displaying information about the contents to be stored in the inner space S1 of the transport container 1 can be easily attached to the outer surfaces of the upper side wall 7a and the lower side wall 7b.

[0077] As shown in Figure 9, the rocking wall projection 6c is located in the center of the main plate 80 of the rocking wall 8 in the front-rear direction. The pair of vertical ribs 60 and 61 of the rocking wall projection 6c are arranged symmetrically.

[0078] The upper ends 601 and 611 of the pair of vertical ribs 60 and 61 extend diagonally upward from the upper ends of the main body 600 and 610, with the spacing between them increasing towards the upper portion. The upper ends 601 and 611 do not have inclined surfaces 606 and 616 (see Figure 5).

[0079] The oscillating wall projection 6c is provided on the inner surface of the main plate 80, from the portion adjacent to the handle 85 below the handle 85, to the lower end of the main plate 80. The portion of the oscillating wall projection 6c above the rib 86 is provided on the portion of the oscillating wall 8 whose outer surface is flat. The portion of the oscillating wall projection 6c below the rib 86 (i.e., the lower end of the oscillating wall projection 6c) is provided on the portion of the oscillating wall 8 where the rib 86 protrudes from the outer surface. In other words, the entire remaining portion of the oscillating wall projection 6c, excluding the lower end, is provided on the inner surface of the portion of the oscillating wall 8 whose outer surface is flat.

[0080] In the transport container 1 of this embodiment, as shown in Figure 2, the outer surface of the part of the oscillating wall 8 where the oscillating wall projection 6c is provided, and the outer surfaces of the parts to the left and right of it, are both flat surfaces. Therefore, it is easy to attach labels to the outer surface of the oscillating wall 8.

[0081] 2-6. Others As shown in Figure 1, the partition wall 5 includes a first partition wall 5a held by upper projections 6a and lower projections 6b provided on each of a pair of bent walls 7, and a second partition wall 5b held by pivot wall projections 6c provided on each of a pair of pivot walls 8. The first partition wall 5a divides the inner space S1 in the left-right direction, and the second partition wall 5b divides the inner space S1 in the front-back direction.

[0082] The first partition wall 5a and the second partition wall 5b are each rectangular flat plates. The first partition wall 5a and the second partition wall 5b are each provided with a slit 50 for combining them in an intersecting manner.

[0083] The first partition wall 5a is a rectangular, flat plate with thickness in the left-right direction. The front and rear end faces of the first partition wall 5a are flat surfaces. In the center of the first partition wall 5a in the front-rear direction, there is a slit 50 that is cut out from the lower end of the first partition wall 5a and opens downwards and to the left and right.

[0084] The second partition wall 5b is a rectangular flat plate with thickness in the front-to-back direction. The left and right end faces of the second partition wall 5b are flat surfaces. The second partition wall 5b is provided with a plurality (five in this embodiment) of slits 50 that are cut out from the upper end of the second partition wall 5b and open upward and in the front-to-back direction. The spacing between the plurality of slits 50 in the second partition wall 5b is the same as the spacing between the plurality of upper protrusions 6a in the bent wall 7.

[0085] The first partition wall 5a is inserted from above into one of the multiple slits 50 of the second partition wall 5b, thereby joining the second partition wall 5b in a manner that intersects (more specifically, perpendicular to) it.

[0086] The first partition wall 5a is held at each of its front and rear ends by one upper projection 6a and one lower projection 6b located directly below it on each bent wall 7. The lower end of the first partition wall 5a is supported by the bottom wall body 20 of the bottom wall 2. The first partition wall 5a is held by the upper projection 6a and the lower projection 6b by passing it between a pair of vertical ribs 60, 61 of the upper projection 6a and then between a pair of vertical ribs 60, 61 of the lower projection 6b.

[0087] The second partition wall 5b is held at each of its left and right ends by the oscillating wall projections 6c of each oscillating wall 8. The lower end of the second partition wall 5b is supported by the bottom wall body 20 of the bottom wall 2.

[0088] 2-7. How to use transport containers The transport container 1 described above can be transformed between the assembled state shown in Figure 2 and the folded state shown in Figure 3.

[0089] When the transport container 1 is in the assembled state shown in Figure 2, the partition wall 5 can be attached to the transport container 1 as shown in Figure 1. In the example shown in Figure 1, one first partition wall 5a and one second partition wall 5b are attached to the transport container 1 in a manner that they intersect with each other.

[0090] The first partition wall 5a is held in place by the central upper projection 62 and central lower projection 65 of a pair of bent walls 7, which sandwich its front-rear ends. The second partition wall 5b is held in place by the left and right ends sandwiched by the pivot wall projections 6c of a pair of pivot walls 8. The partition walls 5a and 5b may contact both of the pair of vertical ribs 60 and 61 that constitute the holding projection 6, or they may contact only one of them.

[0091] The first partition wall 5a and the second partition wall 5b are combined in a manner that they intersect each other. The slit 50 of the first partition wall 5a is inserted into the slit 50 of the second partition wall 5b, which is directly below the slit 50 in the left-right central part. The slit 50 of the second partition wall 5b is inserted into the slit 50 of the first partition wall 5a, which is directly above the slit 50.

[0092] Furthermore, the transport container 1 may be used without the partition wall 5 attached.

[0093] As shown in Figure 2, the transport container 1 can be transformed from an assembled state to a folded state without the partition wall 5 being attached.

[0094] First, the outer surfaces of the pair of swing walls 8 of the assembled transport container 1 are pushed inward in the left-right direction, and the pair of swing walls 8 are rotated so that their lower ends move inward in the left-right direction, thereby releasing the engagement between the lower ends of each swing wall 8 and the bottom wall 2. This allows the pair of swing walls 8 to rotate from an upright position relative to the bottom wall 2 to a reclined position (see Figure 3) that is almost parallel to the bottom wall 2.

[0095] In this embodiment, when the pair of oscillating walls 8 are rotated from an upright position to a reclined position, the lower end of each oscillating wall 8 contacts the lower part of the corresponding end-side upper projection 63, as shown in Figure 5. At this time, the lower end of each oscillating wall 8 may also contact the upper end of the corresponding end-side lower projection 66.

[0096] On the right-side rocking wall 8, the lower end of the rocking wall 8 strikes the inclined outer surface 613 of the main body 610 of the vertical rib 61 of the end-side upper projection 63, and rides up onto the tip surface 615 of the main body 610 of the vertical rib 61. Next, the lower end of the right-side rocking wall 8 moves upward from the end-side upper projection 63, while striking the tip surfaces 604, 614 of the main body 600, 610 of the vertical ribs 60, 61, the tip surfaces 605, 615 of the upper ends 601, 611 of the vertical ribs 60, 61, and the inclined surfaces 606, 616. The right-side rocking wall 8 can be rotated to a tilted position that is almost parallel to the bottom wall 2.

[0097] The left-side rocking wall 8 can be rotated from an upright position to a reclined position, similar to the right-side rocking wall 8.

[0098] Next, the outer surfaces of the pair of folding walls 7 in the front-rear direction are pressed, causing the pair of folding walls 7 to fold in half. At this time, the lower side wall 7b in the collapsed position is stacked on top of the bottom wall 2, and the upper side wall 7a in the collapsed position is stacked on top of the lower side wall 7b in the collapsed position. At this time, the lower projection 6b is either in contact with the upper surface of the bottom wall body 20 of the bottom wall 2 or is positioned slightly away from the bottom wall body 20. The pair of end-side upper projections 63 of the upper projection 6a are in contact with the lower surface (i.e., the outer surface in the assembled state) of the rocking wall 8 in the collapsed position.

[0099] When the transport container 1 is in the folded state shown in Figure 3, the rocking wall projection 6c of the rocking wall 8 is located below the upper end of the opening frame 3, as shown in Figure 10.

[0100] Another transport container 1 of the same structure can be stacked on top of the transport container 1 in its folded state. The ribs 22 of the bottom wall 2 of the other transport container 1 located on top are inserted into the opening 30 of the frame 3 of the lower transport container 1 in its folded state. At this time, the oscillating wall projection 6c of the lower transport container 1 is positioned with a small gap between it and the ribs 22 of the bottom wall 2 of the upper transport container 1.

[0101] Furthermore, the transport container 1, which is in the folded state shown in Figure 3, can be transformed into the assembled state shown in Figure 2 as described below.

[0102] First, the opening frame 3 is lifted to raise the pair of folded walls 7, which are in a folded state, onto the bottom wall 2. Next, the upper surfaces of the pair of oscillating walls 8, which are in a collapsed position, are pressed to rotate each oscillating wall 8 to an upright position.

[0103] At this time, as shown in Figure 5, the left end of the right-side rocking wall 8 strikes the inclined surfaces 606, 616 of the upper ends 601, 611 of the vertical ribs 60, 61 of the end-side upper projection 63, and rides up onto the tip surfaces 605, 615 of the upper ends 601, 611. Next, the left end of the right-side rocking wall 8 strikes the tip surfaces 604, 614 of the main body portions 600, 610 of the vertical ribs 60, 61, and the inclined outer surface 613 of the vertical rib 61, and separates from the end-side upper projection 63. The right-side rocking wall 8 can be engaged with the bottom wall 2 by moving it to an upright position relative to the bottom wall 2.

[0104] The left-side oscillating wall 8, like the right-side oscillating wall 8, can be rotated from a reclined position to an upright position and engaged with the bottom wall 2.

[0105] By rotating the left and right swinging walls 8 from a reclined position to an upright position and engaging them with the bottom wall 2, the transport container 1 can be transformed into the assembled state shown in Figure 2.

[0106] 3. Effects In the transport container 1 of this embodiment described above, the outer surfaces of the portions of each of the pair of bent walls 7 and the pair of swinging walls 8 that are provided with the retaining protrusions 6 (i.e., the upper protrusion 6a, the lower protrusion 6b, and the swinging wall protrusion 6c) are flat. In other words, the retaining protrusions 6 are not formed by deforming a part of the side wall 4 so that it protrudes outward and opens inward, and there is no bulging portion on the outer surface of the side wall 4 for forming the retaining protrusions 6.

[0107] In addition, in the transport container 1 of this embodiment, the outer surfaces of the portion of each of the pair of bent walls 7 and the pair of swinging walls 8 that has the holding projection 6 and the surrounding portion (i.e., the front and rear portion or the left and right portion) are flat surfaces.

[0108] Therefore, in the transport container 1 of this embodiment, it is easy to attach labels indicating information about the contents to the outer surfaces of each of the pair of bent walls 7 and the pair of swinging walls 8.

[0109] Furthermore, in the transport container 1 of this embodiment, the outer surfaces of the upper side wall 7a and lower side wall 7b of each bent wall 7, where the upper protrusion 6a and lower protrusion 6b are provided, are flat surfaces, making it easy to affix labels to the outer surfaces of the upper side wall 7a and lower side wall 7b.

[0110] Furthermore, in the transport container 1 of this embodiment, when the transport container 1 is in its assembled state, the upper projection 6a provided on the upper side wall 7a and the lower projection 6b provided on the lower side wall 7b are adjacent to each other in the vertical direction. Therefore, in the transport container 1 of this embodiment, the partition wall 5 is easily passed through the pair of vertical ribs 60, 61 of the upper projection 6a, and then through the pair of vertical ribs 60, 61 of the lower projection 6b.

[0111] In addition, in the transport container 1 of this embodiment, the distance L1 between the upper ends of the pair of vertical ribs 60, 61 of the lower protrusion 6b is longer than the distance L2 between the lower ends of the pair of vertical ribs 60, 61 of the upper protrusion 6a. Therefore, in the transport container 1 of this embodiment, the partition wall 5 is easier to pass through the pair of vertical ribs 60, 61 of the lower protrusion 6b after passing through the pair of vertical ribs 60, 61 of the upper protrusion 6a.

[0112] Furthermore, in the transport container 1 of this embodiment, a continuous inclined surface (inclined surfaces 606, 616 and outer surfaces 603, 613) is provided at a relatively large angle with respect to the inner surface 40 of the side wall 4 in the portion of the end-side upper projection 63 that the oscillating wall 8 contacts during rotation. Therefore, in the transport container 1 of this embodiment, when the oscillating wall 8 rotates, the oscillating wall 8 is less likely to ride up onto the end-side upper projection 63, and collisions between the oscillating wall 8 and the end-side upper projection 63 can be prevented from causing deformation or damage to the oscillating wall 8 or the end-side upper projection 63.

[0113] Furthermore, in the transport container 1 of this embodiment, the lower end projection 66 is also provided with a continuous inclined surface (outer surfaces 603, 613 and upper outer surfaces 608, 618) that forms a relatively large angle with respect to the inner surface 40 of the side wall 4. Therefore, in the transport container 1 of this embodiment, when the swinging wall 8 rotates, the swinging wall 8 is less likely to ride up onto the lower end projection 66, and collisions between the swinging wall 8 and the lower end projection 66 can be prevented, thus preventing deformation or damage to the swinging wall 8 or the lower end projection 66.

[0114] Furthermore, in the transport container 1 of this embodiment, since each of the pair of bent walls 7 and the pair of swinging walls 8 is provided with a retaining projection 6, the partition walls 5 can be attached to divide the inner space S1 of the transport container 1 into left-right, front-back, and both directions.

[0115] Furthermore, in the transport container 1 of this embodiment, since each of the pair of bent walls 7 is provided with multiple sets of upper protrusions 6a and lower protrusions 6b, the inner space S1 of the transport container 1 can be divided into desired intervals in the left-right direction.

[0116] Furthermore, in the transport container 1 of this embodiment, the inclined surfaces 606, 616 of the upper ends 601, 611 of the pair of vertical ribs 60, 61 of the upper projection 6a are inclined surfaces that are closer to the inner surface 40 of the side wall 4 as the upper portion approaches. Similarly, the lower ends 604, 614 of the tip surfaces 604, 614 of the pair of vertical ribs 60, 61 of the lower projection 6b are inclined surfaces that are closer to the inner surface 40 of the side wall 4 as the lower portion approaches. Therefore, in the transport container 1 of this embodiment, when loading or unloading contents into the inner space S1 of the transport container 1, the contents are less likely to get caught on the upper projection 6a and the lower projection 6b.

[0117] Furthermore, in the transport container 1 of this embodiment, two lower connecting parts 76 are provided at the center of the lower side wall 7b of each of the pair of bent walls 7 that form the longitudinal side wall 4, so as to be offset in the left-right direction from the central lower projection 65.Therefore, in the transport container 1 of this embodiment, it is easier to prevent the center of the lower side wall 7b in the left-right direction from shifting in the front-rear direction (so-called body bulging).In addition, since the center of the lower side wall 7b is connected to the center of the upper side wall 7a via two sets of intermediate upper connecting parts 71 and intermediate lower connecting parts 75, it is also easier to prevent body bulging of the upper side wall 7a.

[0118] 4. Variations Next, we will describe variations of the transport container 1 described above. The variations described below can be combined as appropriate.

[0119] The multiple side walls 4 are not limited to having a pair of bendable walls 7 and a pair of swinging walls 8. For example, the multiple side walls 4 may be walls fixed to the bottom wall 2 and the opening frame 3, respectively, meaning that the transport container 1 may not be foldable.

[0120] The retaining projection 6 may include only one of the upper projection 6a and the lower projection 6b. The retaining projection 6 may include only one of the upper projection 6a and the lower projection 6b, and the oscillating wall projection 6c.

[0121] The upper projection 6a may include only a portion of the central upper projection 62, the pair of end-side upper projections 63, and the pair of intermediate upper projections 64. Similarly, the lower projection 6b may include only a portion of the central lower projection 65, the pair of end-side lower projections 66, and the pair of intermediate lower projections 67.

[0122] The retaining projection 6 does not necessarily have to be composed of a pair of vertical ribs 60, 61, and may be provided in other shapes capable of holding the partition wall 5.

[0123] The end-side upper projection 63 does not necessarily have inclined surfaces (inclined surfaces 606, 616, outer surfaces 603, 613) that guide the oscillating wall 8 to ride up onto the tip surface (tip surface 604, 605, 614, 615) in the direction of projection of the end-side upper projection 63 during rotation. For example, the oscillating wall 8 may be provided with an inclined surface to avoid collision with the end-side upper projection 63. Also, the end-side upper projection 63 may be provided outside the rotation range of the oscillating wall 8.

[0124] If the end-side lower projection 66 is located outside the rotation range of the swinging wall 8, it may be provided with the same structure as the central lower projection 65 and the intermediate lower projection 67. In other words, the pair of vertical ribs 60 and 61 constituting the end-side lower projection 66 may be provided symmetrically to each other.

[0125] The oscillating wall projection 6c may be provided so as to protrude above the upper end of the opening frame 3 when the transport container 1 is in a folded state. In this case, the ribs 22 of the bottom wall 2 may be provided with recesses that can accommodate the oscillating wall projection 6c so that multiple transport containers 1 can be stacked vertically.

[0126] The partition wall 5 may have only one of the first partition wall 5a and the second partition wall 5b. Alternatively, the partition wall 5 may have multiple first partition walls 5a.

[0127] The partition wall 5 may be a wall that divides the inner space S1 of the transport container 1 in the vertical direction, in which case the retaining projection 6 may consist of a single rib provided horizontally on the inner surface 40 of each of the multiple side walls 4.

[0128] The retaining projection 6 may be provided entirely on the portion of the side wall 4 whose outer surface is flat.

[0129] Each of the pair of end-side upper projections 63 and the pair of end-side lower projections 66 may be provided so as to fit within the left-right width L5 (see Figure 5) of the upper connecting portion 70 located directly above.

[0130] The main body portions of the longitudinal ribs on the left-right inner sides of each pair of end-side upper protrusions 63 (specifically, the main body portion 600 of the longitudinal rib 60 for the right end-side upper protrusion 63, and the main body portion 610 of the longitudinal rib 61 for the left end-side upper protrusion 63) may be located on the same straight line with respect to the left-right inner edge of the upper connecting portion 70 located directly above.

[0131] (summary) As described above in the embodiment and its modified form, the transport container 1 of the first embodiment has the following configuration.

[0132] In other words, the transport container 1 of the first embodiment comprises a bottom wall 2, a frame-shaped opening 3 in plan view located above the bottom wall 2, and a plurality of side walls 4 provided between the opening 3 and the bottom wall 2. The transport container 1 further comprises retaining protrusions 6 provided on the plurality of side walls 4, which hold partition walls 5 that divide the inner space S1 surrounded by the plurality of side walls 4 into a plurality of spaces. The outer surface of the portion of the plurality of side walls 4 on which the retaining protrusions 6 are provided is a flat surface.

[0133] In the first embodiment of the transport container 1 having the above configuration, the outer surface of the portion of the multiple side walls 4 where the retaining projection 6 is provided is a flat surface, making it easy to affix labels to the outer surface of the side walls.

[0134] Furthermore, as described above in one embodiment and its modified form, the transport container 1 of the second embodiment is further equipped with the following configuration in addition to the configuration of the first embodiment.

[0135] In other words, in the transport container 1 of the second embodiment, the plurality of side walls 4 have a pair of foldable walls 7 that are rotatably connected to the opening frame 3 and the bottom wall 2 respectively, and a pair of swing walls 8 that are rotatably connected to the opening frame 3 and can engage with the bottom wall 2. Each pair of foldable walls 7 includes an upper side wall 7a that is rotatably connected to the opening frame 3, and a lower side wall 7b that is rotatably connected to the upper side wall 7a and the bottom wall 2 respectively. The retaining projection 6 includes an upper projection 6a provided on the upper side wall 7a and a lower projection 6b provided on the lower side wall 7b.

[0136] In the second embodiment of the transport container 1 having the above configuration, the outer surface of the portion of the upper side wall 7a provided with the upper projection 6a and the outer surface of the portion of the lower side wall 7b provided with the lower projection 6b are both flat surfaces, making it easy to affix labels to the outer surfaces of the upper side wall 7a and the lower side wall 7b, respectively.

[0137] Furthermore, as described above in one embodiment and its modified form, the transport container 1 of the third embodiment is further equipped with the following configuration in addition to the configuration of the second embodiment.

[0138] In other words, in the third embodiment of the transport container 1, the upper projection 6a includes an end-side upper projection 63 located within the rotation range of the pair of swinging walls 8. The end-side upper projection 63 has inclined surfaces (inclined surfaces 606, 616, outer surfaces 603, 613) that guide the swinging wall 8 to ride onto the end-side upper projection 63's protruding tip surfaces 604, 605, 614, 615 during rotation.

[0139] In the third embodiment of the transport container 1 having the above configuration, when the swinging wall 8 is rotated, the swinging wall 8 moves while contacting the inclined surface of the end-side upper projection 63, allowing the swinging wall 8 to smoothly ride up onto the tip surfaces 604, 605, 614, and 615 of the end-side upper projection 63. Therefore, in the third embodiment of the transport container 1, collisions between the rotating swinging wall 8 and the end-side upper projection 63 can be suppressed, making it easier to rotate the swinging wall 8 smoothly.

[0140] Furthermore, as described above in one embodiment and its modified form, the transport container 1 of the fourth embodiment additionally comprises the following configurations in addition to the configuration of the second or third embodiment.

[0141] In other words, in the transport container 1 of the fourth embodiment, the retaining projection 6 includes a rocking wall projection 6c provided on each of the pair of rocking walls 8.

[0142] In the fourth embodiment of the transport container 1 having the above configuration, the partition wall 5 can be held by the rocking wall projections 6c provided on each of the pair of rocking walls 8. Therefore, in the fourth embodiment of the transport container 1, the partition wall 5 can be held by the rocking wall projections 6c, by the upper projections 6a and lower projections 6b, or a combination of both. In addition, in the fourth embodiment of the transport container 1, the outer surface of the portion of the pair of rocking walls 8 on which the rocking wall projections 6c are provided becomes a flat surface, making it easy to attach labels to the outer surface of each of the pair of rocking walls 8.

[0143] Furthermore, as described above in one embodiment and its modified form, the transport container 1 of the fifth embodiment additionally comprises the following configurations in addition to the configuration of the first embodiment.

[0144] In other words, in the fifth embodiment of the transport container 1, the multiple side walls 4 are rotatably connected to the opening frame 3 and the bottom wall 2 respectively and have a pair of foldable walls 7 and a pair of swing walls 8 that are rotatably connected to the opening frame 3 and can engage with the bottom wall 2. The retaining projection 6 includes swing wall projections 6c provided on each of the pair of swing walls 8.

[0145] In the fifth embodiment of the transport container 1 having the above configuration, the partition wall 5 can be held by the rocking wall projections 6c provided on each of the pair of rocking walls 8. Furthermore, in the fifth embodiment of the transport container 1, the outer surface of the portion of the pair of rocking walls 8 on which the rocking wall projections 6c are provided becomes a flat surface, making it easy to affix labels to the outer surface of each of the pair of rocking walls 8.

[0146] Furthermore, as described in the embodiment and its modified form above, the transport container 1 of the sixth embodiment additionally comprises the following configurations in addition to the configuration of the fourth or fifth embodiment.

[0147] In other words, in the sixth embodiment of the transport container 1, in the folded state in which a pair of folded walls 7 overlap on the bottom wall 2 and a pair of reclined swinging walls 8 overlap on the pair of folded walls 7, the swinging wall protrusion 6c is located below the upper end of the opening frame 3.

[0148] In the sixth embodiment of the transport container 1 having the above configuration, when another transport container 1 of the same structure is placed on top of the transport container 1 in a folded state, the oscillating wall protrusion 6c of the lower transport container 1 is less likely to get in the way.

[0149] Although the present disclosure has been described above based on the embodiments shown in the attached drawings, the present disclosure is not limited to the above embodiments, and appropriate design modifications are possible within the scope intended by the present disclosure. [Explanation of symbols]

[0150] 1. Transport container 2 Bottom wall 3-entry frame 4 side wall 5 Partition wall 6 Holding protrusion 6a Upper protrusion 63 Upper end protrusion 6b Lower protrusion 65 Lower central protrusion 6c Swiveling wall projection 7. Bent Wall 76 Lower connection part 8. Swiveling wall S1 inner space

Claims

1. The bottom wall and, A frame-shaped opening in plan view, located above the bottom wall, A plurality of side walls are provided between the opening frame and the bottom wall, The system includes retaining protrusions provided on the plurality of side walls for holding partition walls that divide the inner space surrounded by the plurality of side walls into a plurality of spaces, The outer surface of the portion of the plurality of side walls on which the retaining projection is provided is a flat surface. A container for transport.

2. The aforementioned plurality of side walls are A pair of foldable walls are rotatably connected to the aforementioned opening frame and the aforementioned bottom wall, A pair of swinging walls are rotatably connected to the aforementioned frame and engageable with the bottom wall, It has, Each of the pair of bent walls includes an upper side wall rotatably connected to the frame and a lower side wall rotatably connected to the upper side wall and the bottom wall, The retaining projection includes an upper projection provided on the upper side wall and a lower projection provided on the lower side wall. A transport container according to claim 1.

3. The upper projection includes an end-side upper projection located within the rotational range of the pair of swinging walls, The end-side upper projection has an inclined surface that guides the oscillating wall to ride up onto the tip surface of the end-side upper projection in the direction of protrusion during rotation. The transport container according to claim 2.

4. The retaining projection includes a rocking wall projection provided on each of the pair of rocking walls, A transport container according to claim 2 or 3.

5. The aforementioned plurality of side walls are A pair of swinging walls are rotatably connected to the aforementioned frame and engageable with the bottom wall, The opening frame and the bottom wall are rotatably connected to each of them, and each has a pair of foldable walls, The retaining projection includes a rocking wall projection provided on each of the pair of rocking walls, A transport container according to claim 1.

6. In the folded state in which the pair of folded walls overlap on the bottom wall and the pair of oscillating walls overlap on the pair of folded walls in a reclined position, the projection of the oscillating wall is located below the upper end of the mouth frame. The transport container according to claim 5.

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