Box

Abstract

It is desirable to make it easier to attach the plate components. [Solution] The box body 10 is a rectangular parallelepiped with an open bottom, and a groove 40 is formed on the outer edge of the top plate portion 20A, into which a plate member 100 can be placed. In addition, corner recesses 24 are formed at the four corners of the top plate portion 20A, which engage with the box body 10 below when stacked. The groove 40 communicates with the corner recesses 24, so that both ends are open outward in the direction in which the groove 40 extends.

Description

Technical Field

[0006]

[0001] The present disclosure relates to a box body having a rectangular parallelepiped shape with an open bottom surface and usable as a mounting table on which an object is placed on the top plate portion.

Background Art

[0002] Conventionally, as this type of box body, there is known one provided with a groove portion on the top plate portion in which a plate member can be erected (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003] <​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Figure 1 is a perspective view of the box body according to the first embodiment. [Figure 2] Figure 2 is a perspective view of the bottom of the box. [Figure 3] Figure 3 is a perspective view of the box in its folded state. [Figure 4] Figure 4 is a perspective view of the bottom of the box in its folded state. [Figure 5] Figure 5 is an enlarged perspective view of the box. [Figure 6] Figure 6 is a perspective view of the stacked boxes. [Figure 7] Figure 7 is a perspective view of the box with the plate members attached. [Figure 8] Figure 8 is a perspective view showing the box bodies arranged side by side with the plate members attached. [Figure 9] Figure 9 is a plan view of the area near the groove on the longer side. [Figure 10] Figure 10 is a plan view of the area near the groove on the shorter side. [Figure 11] Figure 11 is a perspective view of the box body according to the second embodiment. [Figure 12] Figure 12 is an enlarged plan view of the box. [Figure 13] Figure 13 is a perspective view of the box with the plate members attached. [Figure 14] Figure 14 is a perspective view showing the box bodies arranged side by side with the plate members attached. [Figure 15] Figure 15 is a perspective view of the stacked boxes. [Modes for carrying out the invention]

[0008] [First Embodiment] The first embodiment of the box body 10 will be described below with reference to Figures 1 to 10. As shown in Figures 1 and 2, the box body 10 of this embodiment has a rectangular parallelepiped shape with an open bottom, and a pair of opposing first side walls 11 and a pair of second side walls 12 are hinged to the outer edge of the top plate member 20. The box body 10 can be changed between an assembled state in which the first side walls 11 and the second side walls 12 hang down from the top plate member 20, as shown in Figures 1 and 2, and a folded state in which the first side walls 11 and the second side walls 12 are folded so as to overlap the bottom surface of the top plate member 20, as shown in Figures 3 and 4. In both states, it can be used as a platform on which objects are placed on the top plate member 20. Hereafter, unless otherwise specified, the structure of each part and section will be described assuming that the box body 10 is in the assembled state described above. When the first side walls 11 and the second side walls 12 are not distinguished, they will be referred to as side walls 11, 12, etc.

[0009] As shown in Figures 1 and 2, a pair of first side walls 11 are positioned on the short side of the top plate member 20, and a pair of second side walls 12 are positioned on the long side of the top plate member 20. Each side wall 11, 12 has a structure on the inner surface of the main wall 17 that divides the box body 10 into interior and exterior sections, with a plurality of reinforcing ribs 18 and a plurality of reinforcing housing sections 19. The plurality of reinforcing ribs 18 extend in the vertical and horizontal directions of the first side walls 11 and the second side walls 12. The plurality of reinforcing housing sections 19 are positioned at intervals in the horizontal direction of the first side walls 11 and the second side walls 12, and are positioned opposite each other in a range extending from the upper end of the main wall 17 to an intermediate position in the vertical direction. In detail, the reinforcing housing section 19 comprises a vertically elongated rectangular opposing wall 19T that faces the main wall 17 over a range extending from the upper end to an intermediate position in the vertical direction, a pair of connecting walls 19S that are bent at right angles from both side edges of the opposing wall 19T and connected to the main wall 17, and a bottom wall 19A that is bent diagonally downward from the lower side edge of the opposing wall 19T and connected to the main wall 17. In addition, a pair of through holes 19B for draining water and dust are formed in the bottom wall 19A, and the space between the reinforcing housing section 19 and the main wall 17 is open to the upper side. In the box body 10 of this embodiment, the strength of the first side wall 11 and the second side wall 12 is improved by this reinforcing housing section 19, and the load-bearing capacity of the box body 10 in the assembled state is improved.

[0010] As shown in FIG. 4, horizontal reinforcing ribs 18 are provided at the upper ends of the first side wall 11 and the second side wall 12, excluding the portion directly above the reinforcing housing portion 19, and a plurality of hinge arms 18H project from these reinforcing ribs 18. Hinge shaft portions 18A project from both side surfaces of each hinge arm 18H. Then, these hinge shaft portions 18A are received in hinge recesses 30, which will be described later, of the top plate member 20, and the first side wall 11 and the second side wall 12 are connected so as to be rotatable between a folded posture parallel to the top plate member 20 and a hanging posture perpendicular to the top plate member 20.

[0011] In addition, in the present embodiment, the first side walls 11 and the second side walls 12 are configured such that the first side walls 11 and the second side walls 12 do not overlap in the folded posture, but they may overlap. Further, the folded posture of the first side walls 11 and the second side walls 12 does not have to be parallel to the top plate member 20 as long as it can be recognized as a state folded with respect to the top plate member 20.

[0012] As shown in FIGS. 2 and 4, both lateral ends in the lateral direction of the second side wall 12 are bent toward the first side wall 11 side, and both lateral ends in the lateral direction of the first side wall 11 and both lateral ends in the lateral direction of the second side wall 12 are engaged with each other in a state where each side on the first side wall 11 side is sandwiched between a pair of second side walls 12.

[0013] A latch member 60 extending in the lateral direction is supported at the lower end portion on the inner surface of the first side wall 11 so as to be slidable in the vertical direction. Further, a pair of elastic pieces 60D project obliquely downward from the lower surface of the latch member 60, and the latch member 60 is biased to the upper end of the movable range by their contact with the reinforcing rib 18 at the lower end of the first side wall 11 from above. Further, interference portions (not shown) that interfere with both end portions of the latch member 60 are provided at both lateral portions in the lateral direction on the inner surface of the second side wall 12. When the box body 10 is in the assembled state, the interference portions overlap the end portions of the latch member 60 from the inside of the box body 10, thereby restricting the rotation of the first side wall 11 toward the folded posture side. When the latch member 60 is moved to the lower end position of the movable range in this state, the first side wall 11 can be rotated toward the folded posture side.

[0014] Lower end protrusions 11T and 12T protrude from both lateral ends in the lateral direction on the lower surfaces of the first side wall 11 and the second side wall 12. Then, as shown in FIG. 2, in the assembled state of the box body 10, the lower end protrusions 11T and 12T of the first side wall 11 and the second side wall 12 are combined to form an L-shaped corner protrusion 10T. Note that the end portions of the corner protrusion 10T, that is, the inner lateral end portions of the respective lower end protrusions 11T and 12T, are tapered portions 11S and 12S that are inclined with respect to the vertical direction.

[0015] Next, the top plate member 20 will be described. As shown in FIG. 3, the top plate member 20 has a top plate portion 20A having a rectangular planar shape, a pair of short-side support protrusions 21 protruding downward from the outer edge portions on a pair of short sides of the top plate portion 20A, and a pair of long-side support protrusions 22 protruding downward from the outer edge portions on a pair of long sides. The pair of long-side support protrusions 22 protrude significantly more downward than the pair of short-side support protrusions 21. Also, both end portions in the longitudinal direction of the pair of long-side support protrusions 22 are bent at right angles toward the pair of short-side support protrusions 21 side.

[0016] As shown in FIG. 4, each support protrusion 21, 22 has a structure in which a plurality of connecting walls 33 connect an outer opposing wall 31 and an inner opposing wall 32 that face each other in the inside-outside direction of the box body 10. As shown in FIGS. 2 and 4, each support protrusion 21, 22 is provided with hinge recesses 30 at a plurality of positions in the longitudinal direction. The hinge recess 30 is open to the inside and downward, and the inner side is wider than the opening of the inner opposing wall 32. The hinge shaft portions 18A of the first side wall 11 and the second side wall 12 are received in these hinge recesses 30, and the first side wall 11 and the second side wall 12 are rotatably connected to the top plate member 20. Further, both end portions in the longitudinal direction of the long-side support protrusion 22 are top plate protrusions 20T that protrude downward. This top plate protrusion 20T has substantially the same length as the lower end protrusion 12T (see FIG. 2) of the second side wall 12.

[0017] As shown in Figure 1, the upper surface of the top plate portion 20A is flat throughout, except for the outer edge, and serves as a placement area 26 on which goods or other items are placed. Additionally, corner recesses 24 are formed on the upper surface of the top plate portion 20A by recessing L-shaped regions along the four corners of the outer edge. As shown in Figure 5, each corner recess 24 is provided with a small projection 24T. The small projections 24T are positioned inward along the longer side of the L-shape of the corner recess 24, on the top plate member 20. The small projections 24T are approximately half the height between the bottom surface of the corner recess 24 and the upper surface of the top plate portion 20A. The outer end of the top plate member 20 in the longitudinal direction is a vertical surface, while the opposite end is a tapered surface. Furthermore, multiple bottom ribs 25 are provided on the lower surface of the top plate portion 20A in a diagonal grid pattern (see Figure 2).

[0018] As shown in Figure 6, the box bodies 10 can be stacked in both their assembled and folded states. When an assembled box body 10 is stacked on top of another box body 10, the corner protrusions 10T of the side walls 11 and 12 of the upper box body 10 are received by the corner recesses 24 of the lower box body 10. When a folded box body 10 is stacked on top of another box body 10, the top plate protrusion 20T of the top plate member 20 of the upper box body 10 is received by the corner recesses 24 of the lower box body 10, resulting in a recessed engagement. This allows the upper and lower box bodies 10 to fit together, stabilizing the stacking. Furthermore, since the corner protrusions 10T or top plate protrusions 20T of the upper box body 10 are positioned outside the small protrusions 24T of the corner recesses 24, rattling of the upper box body 10 is suppressed. Furthermore, since the corner projection 10T and the corner recess 24 are L-shaped, and the sides of the corner projection 10T and the corner recess 24 face each other in two directions, the fitting of the box bodies 10 together is stable.

[0019] Thus, the box body 10 of this embodiment can be stacked stably in both the assembled and folded states, making it easy to set up the mounting platform at a suitable height.

[0020] As shown in Figure 7, the box body 10 of this embodiment has a groove 40 formed on the outer edge of the top plate portion 20A, into which a plate member 100 can be placed. The plate member 100 is a fall prevention plate that prevents objects placed on the top plate portion 20A (more specifically on the mounting portion 26) from falling.

[0021] The grooves 40 are provided on each of the four sides of the top plate portion 20A and extend between the L-shaped ends of the corner recesses 24. The upper surface of the top plate portion 20A, inside the grooves 40 and corner recesses 24, is the aforementioned mounting portion 26, and the aforementioned inner opposing wall 32 (see Figure 2) hangs down from the outer edge of the mounting portion 26. Of this inner opposing wall 32, the portion above the groove bottom surface 40A (see Figure 5) of the groove 40 becomes the inner groove wall 43 of the groove 40. In addition, the outer opposing wall 31 extends upward from the outer edge of the top plate portion 20A, excluding the corner recesses 24, and the outer groove wall 45 of the groove 40 stands upright. The inner opposing wall 32 may hang down inward from the inner groove wall 43.

[0022] The groove 40 communicates with the corner recess 24, so that both ends of the groove 40 are open outward in the direction in which the groove 40 extends. The bottom surface of the corner recess 24 and the bottom surface 40A of the groove 40 are flush.

[0023] Furthermore, as shown in Figure 8, when a pair of box bodies 10 are placed side by side, the grooves 40 extending in the direction of side-by-side alignment are aligned in a straight line, making it possible to erect the plate member 100 across the pair of box bodies 10. Although Figure 8 shows an example where a pair of box bodies 10 are placed side by side in the short direction, similarly, when a pair of box bodies 10 are placed side by side in the long direction, the grooves 40 on the long side are aligned in a straight line, making it possible to erect the plate member 100 across them. When a pair of box bodies 10 are placed side by side, the plate member 100 can also be attached as a partition plate to the groove 40 located in the center in the direction of side-by-side alignment.

[0024] As shown in Figure 5, the groove 40 is located in the middle of the width direction of each side of the L-shape of the corner recess 24, and stepped portions 43A and 45A are formed on the inner wall 43 and outer wall 45 of the groove at the connection point between the groove 40 and the corner recess 24. These stepped portions 43A and 45A are tapered, moving inward in the direction in which the groove 40 extends as it goes upward.

[0025] Furthermore, as shown in Figures 9 and 10, multiple recessed sections 47 are formed in the outer wall 45 and inner wall 43 of the groove, widening a portion of the groove 40. More specifically, as shown in Figures 1 and 9, the inner wall 43 of the groove 40 on the long side (hereinafter referred to as "long side groove inner wall 43X") has five recessed sections 47 located in the center of the groove 40, near both ends, and at intermediate positions between the center and near both ends. The recessed section 47 in the center is longer than the other recessed sections 47.

[0026] On the outer wall 45 of the groove 40 on the long side (hereinafter referred to as the "long side groove outer wall 45X"), recessed portions 47 are formed at positions corresponding to the recessed portions 47 on the inner wall 43X of the long side groove, both near the ends and at intermediate positions between the central part and the near-ends. Furthermore, in the central part of the outer wall 45X of the long side groove (i.e., the position opposite to the recessed portion 47 in the central part of the inner wall 43X of the long side groove), a notch 48 is formed that opens a part of the groove 40 to the side. The notch 48 is formed up to the height of the groove bottom surface 40A of the groove 40, and the inner edge 45B of the notch 48 on the outer wall 45X of the long side groove is tapered in a symmetrical manner with respect to the stepped portion 45A.

[0027] As shown in Figures 1 and 10, the inner wall 43 of the groove 40 on the short side (hereinafter referred to as the "short side groove inner wall 43Y") has recessed portions 47 at two positions flanking the central part of the groove 40. The outer wall 45 of the groove 40 on the short side (hereinafter referred to as the "short side groove outer wall 45Y") has recessed portions 47 formed at positions opposite to the recessed portions 47 of the inner wall 43Y, and a notch 48 is formed in the center, opening a part of the groove 40 to the side. The notch 48 of the short side groove outer wall 45Y is formed up to the height of the groove bottom surface 40A of the groove 40, similar to the notch 48 of the long side groove outer wall 45X, and the inner edge 45B of the notch 48 is tapered, symmetrical to the stepped portion 45A.

[0028] Each recessed portion 47 may be constructed by bending the wall itself, or by thinning the corresponding portion of the wall. Each recessed portion 47 has a main surface 47A parallel to the direction in which the groove portion 40 extends, and connecting portions 47B extending diagonally from both ends and connecting to the inner surface of the outer groove wall 45 or the outer surface of the inner groove wall 43 (see Figures 9 and 10). Furthermore, the recessed portion 47 of the outer groove wall 45 has a smaller recession amount (the distance between the extended surface of the inner surface of the outer groove wall 45 or the outer surface of the inner groove wall 43 and the main surface 47A of the recessed portion 47) than the recessed portion 47 of the inner groove wall 43.

[0029] Furthermore, as shown in Figure 5, projections 49 are provided within the groove 40. The projections 49 are paired and protrude slightly from the inner groove wall 43 and the outer groove wall 45, moving closer to each other. The projections 49 have a roughly trapezoidal cross-sectional shape and consist of a main surface 49A parallel to the direction in which the groove 40 extends, and a connecting portion 49B extending diagonally laterally from the main surface 49A and connecting to the inner surface of the outer groove wall 45 or the outer surface of the inner groove wall 43.

[0030] Multiple pairs of projections 49 are provided in each groove 40. More specifically, as shown in Figure 9, in the groove 40 on the longer side, one pair of projections 49 are positioned slightly towards the center from the recessed portions 47 near both ends, and one pair is positioned towards the center from the recessed portion 47 at an intermediate position between the center and the positions near both ends. Also, as shown in Figure 10, in the groove 40 on the shorter side, one pair of projections 49 are positioned near both ends of the groove 40, and one pair is positioned slightly towards the ends from each recessed portion 47.

[0031] Furthermore, by narrowing the width of the groove 40 in part using these protrusions 49, the plate member 100 is held in place and less likely to fall over.

[0032] Next, the effects and advantages of this box 10 will be explained. As described above, the box 10 of this embodiment can be used as a display stand (for example, a display stand, a showcase, etc.) on which objects are placed, both in its assembled and folded state. Furthermore, by attaching a plate member 100 to the outer edge of the top plate portion 20A, it is possible to prevent placed objects from falling. In addition, a product card or the like with product information written on it may be attached as the plate member 100.

[0033] In conventional box bodies, both ends of the groove into which the plate member is attached are closed, and the plate member can only be inserted into the groove from above. In contrast, in the box body 10 of this embodiment, the end of the groove 40 is open, so the plate member 100 can be inserted not only from above but also by sliding it in from the side, allowing the method of attachment to be changed depending on the situation, making it easier to attach the plate member 100. Also, when the box body 10 is viewed from the side, the open part makes it easier to find the groove 40, so the attachment work of the plate member 100 becomes smoother. In particular, in this embodiment, the groove 40 is in communication with the corner recess 24, so the end of the groove 40 is also easy to find using the corner recess 24 as a guide.

[0034] Furthermore, since the end of the groove 40 is open and the groove bottom surface 40A is flush with the bottom surface of the corner recess 24, it is possible to check whether the plate member 100 has been inserted all the way to the bottom of the groove. This prevents mistakes such as the plate member 100 being inserted too shallowly and falling out. In addition, since it is possible to slide in the plate member 100 after aligning it with the groove bottom surface 40A or the bottom surface of the corner recess 24, it is easier to ensure that the plate member 100 is inserted all the way to the bottom of the groove.

[0035] Furthermore, since the ends of the grooves 40 are open, when a pair of box bodies 10 are placed side by side, the grooves 40 are aligned in a straight line. This makes it possible to attach the plate members 100 to each of the box bodies 10, or to attach them across the pair of box bodies 10, thus expanding the variations in the installation of the box bodies 10 and the plate members 100.

[0036] Furthermore, in this embodiment, since the groove 40 is located in the middle of the width direction of each side of the L-shape of the corner recess 24, the mounting area 26 is wider compared to the case where the groove 40 is positioned closer to the inside of each side of the L-shape of the corner recess 24.

[0037] Furthermore, recessed portions 47 are formed in the outer wall 45 and inner wall 43 of the groove 40, widening a portion of the groove, and a notch 48 is formed in the longitudinal center of the outer wall 45. As a result, even when a warped plate member 100 is attached, the warped portion is received by the recessed portions 47 and notch 48, making it easier to attach the plate member 100. In particular, it is thought that plate members 100 attached to the relatively long groove 40 on the long side often warp so that the center in the horizontal direction protrudes the most. In contrast, in this embodiment, recessed portions 47 or notch 48 are provided in both the outer wall 45 and the inner wall 43 of the groove 40 on the long side, and moreover, these recessed portions 47 or notch 48 are longer than the other recessed portions 47, so that the most warped portion can be effectively received, and the warped plate member 100 can be attached in either direction.

[0038] Furthermore, because the inner edge 45B of the notch 48 in the outer wall 45 of the groove is inclined, when inserting the plate member 100 into the groove 40 from above, the plate member 100 is more easily guided downwards even if it comes into contact with the inner edge 45B. In particular, if the plate member 100 is warped, the portion that is warped and interferes with the outer wall 45 of the groove is guided into the groove 40, making it easier for the plate member to fit into the groove 40.

[0039] Furthermore, since the groove 40 is provided with an inwardly protruding projection 49, the plate member 100 received in the groove 40 is held in place, and friction is applied to the plate member 100, which prevents the plate member 100 from tipping over or shifting.

[0040] Furthermore, at the outer edge of the top plate portion 20A, the stepped portions 43A and 45A of the inner groove wall 43 and outer groove wall 45 are inclined. Therefore, when stacking the box bodies 10, even if the corner protrusions 10T and top plate protrusions 20T of the upper box body 10 are slightly misaligned with the corner recesses 24 of the lower box body 10, the inclination of the stepped portions 43A and 45A guides the corner protrusions 10T and top plate protrusions 20T into the corner recesses 24. In other words, the box bodies 10 are more easily stacked in their correct positions.

[0041] Furthermore, the box 10 can also be inverted and used as a container for storing, transporting, and storing items.

[0042] [Second Embodiment] Figures 11 to 15 show the box body 10W according to the second embodiment. The box body 10W of this embodiment differs from the box body 10 of the first embodiment in that it has intermediate recesses 70 located in the center of each side of the top plate portion 20A, and intermediate grooves 80 connecting the opposing intermediate recesses 70. Details will be explained below.

[0043] As shown in Figures 11 and 12, the intermediate recess 70 has a first straight section 70A that curves outward along the outer edge of the top plate 20A, and a second straight section 70B that extends from the center of the first straight section 70A toward the center of the top plate 20A, forming a T-shape. A notch 48 is formed in the outer wall 45 of the groove that corresponds to the intermediate recess 70.

[0044] Furthermore, the first straight section 70A of the intermediate recess 70 has a width that is approximately the same as the width of one side of the L-shape of the corner recess 24, and a length that is approximately twice the length of one side of the L-shape of the corner recess 24. On the other hand, the second straight section 70B of the intermediate recess 70 has a width that is approximately twice the width of one side of the L-shape of the corner recess 24, and a length that is approximately the same as the length of one side of the L-shape of the corner recess 24. In other words, the intermediate recess 70 has the shape and size of two L-shapes of the corner recess 24 placed side by side.

[0045] In this embodiment, since the intermediate recess 70 is located in the center of the outer edge of the top plate portion 20A, the groove portion 40 on the outer edge of the top plate portion 20A is divided by the intermediate recess 70. It is also possible to consider the central part of the groove portion 40 as being open by the notch portion 48.

[0046] The intermediate grooves 80 described above extend between the second straight sections 70B of a pair of opposing intermediate grooves 80 at the center of the longitudinal and transverse directions of the top plate portion 20A. Each intermediate groove 80 has approximately the same width as the groove 40. The intermediate grooves 80 are provided with a plurality of projections 89 that protrude from a pair of groove side walls 85 and are arranged opposite each other.

[0047] Furthermore, in the inner wall 43 of the groove and the outer wall 45 of the groove, the stepped portions 43A and 45A at the connection between the corner recess 24 and the groove portion 40 are tapered, as are the stepped portions 43A and 45A at the connection between the groove portion 40 and the first straight portion 70A of the intermediate recess 70. In addition, in the mounting portion 26, the stepped portion 26A at the connection between the intermediate groove portion 80 and the second straight portion 70B of the intermediate recess 70 is also tapered.

[0048] According to the box body 10W of this embodiment, as shown in Figure 13, the plate member 100 can also be attached to the intermediate groove 80, making it possible to partition the mounting section 26. Furthermore, as shown in Figure 14, the plate member 100 as a partition plate can be attached across two box bodies 10W, expanding the variations of the mounting platform.

[0049] Furthermore, in this embodiment, by receiving the corner protrusion 10T or top plate protrusion 20T of the upper box body 10W in the intermediate recess 70 of the lower box body 10W, it becomes possible to stack the box bodies 10W stably even if they are offset in the longitudinal or transverse direction. For example, as shown in Figure 15, it is possible to stack the upper box body 10W across two box bodies 10W. This makes it possible to further expand the variations of the mounting base. Also, since the intermediate recess 70 forms a T-shape by combining two L-shapes, it is possible to receive the corner protrusions 10T of two box bodies 10W in the intermediate recess 70 of one box body 10W. That is, it becomes possible to place two box bodies 10W side by side on top of one box body 10W. This makes it possible, for example, to stack two box bodies 10W on top of three box bodies 10W placed side by side.

[0050] [Other embodiments] Although the planar shape of the boxes 10 and 10W in the above embodiment is rectangular, it may also be square.

[0051] Although the box bodies 10 and 10W in the above embodiment were foldable, they may also be configured to be non-foldable, such as when the side walls 11 and 12 are integrally formed with the top plate member 20 or when they are assembled in a way that prevents deformation.

[0052] The groove 40 may be open at only one end.

[0053] In the above embodiment, the grooves 40 were arranged on all four sides of the top plate 20A, but they may be arranged on three sides, two opposing sides, two adjacent sides, or on only one side.

[0054] The grooves may be provided at locations other than the outer edge of the top plate portion 20A. For example, only the intermediate groove portion 80 may be provided.

[0055] In the box body 10W of the second embodiment described above, it may be configured to have only one of the intermediate recess 70 and the intermediate groove 80.

[0056] The corner recesses 24 and corner protrusions 10T do not have to be L-shaped. For example, even if both the corner recesses 24 and corner protrusions 10T are square, triangular, round, etc., the displacement between the box bodies 10 and 10W is restricted by the fact that the four corner protrusions 10T are received by the corner recesses 24.

[0057] The groove 40 may be positioned towards the inside of each side of the L-shape of the corner recess 24 in the width direction. In this case, the inner wall of the corner recess 24 and the inner wall 43 of the groove become flush, so that the plate member 100 placed against the bottom surface of the corner recess 24 can be inserted into the groove 40 along the inner wall of the corner recess 24.

[0058] The depression 47 may be present only on either the inner wall 43 of the groove or the outer wall 45 of the groove.

[0059] The box body 10 does not necessarily have to have corner recesses 24.

[0060] <Note> The following describes the features of this disclosure, including those extracted from the above embodiments, while showing their effects as necessary. For ease of understanding, the corresponding components in the above embodiments are indicated in parentheses below; however, these features are not limited to the components indicated in parentheses.

[0061] [Feature 1] A box-shaped structure (10,10W) with an open bottom, which can be used as a platform on which objects are placed, The top plate portion (20A) is provided with grooves (40, 80) into which a plate member (100) can be placed. A box-shaped body (10, 10W) ​​in which the ends of the grooves (40, 80) are open.

[0062] According to Feature 1, the plate member can be inserted not only from above but also by sliding it in from the side, allowing the mounting method to be changed depending on the situation, making it easier to install the plate member. In addition, it is possible to check whether the plate member has reached the bottom of the groove. Furthermore, the open portion can be used as a marker to make it easier to find the groove. Note that both ends of the groove may be open, or only one end may be open.

[0063] [Feature 2] The box body (10,10W) described in Feature 1, wherein when a pair of box bodies (10,10W) are placed side by side, the grooves (40,80) extending in the side-by-side direction are aligned in a straight line, and the plate member (100) can be erected across the pair of box bodies (10,10W).

[0064] According to Feature 2, the board members can be placed on each individual box or straddled, allowing for various arrangements in the placement of the board members.

[0065] [Feature 3] Corner recesses (24) are provided at the four corners of the top plate portion (20A), The box body (10,10W) is provided with a corner projection (10T) at the lower end of the side wall portion, which can engage with the corner recess (24) of the lower box body (10,10W) when the box bodies (10,10W) are stacked on top of each other. The box body (10,10W) according to feature 1 or 2, wherein the groove (40) extends along the outer edge of the top plate (20A) and communicates with the corner recess (24).

[0066] According to Feature 3, the interlocking grooves and protrusions of the upper and lower boxes ensure stable stacking. Additionally, the corner recesses make it easier to locate the grooves. Furthermore, since the plate member can be placed against the bottom surface of the corner recess before being inserted into the groove, it becomes easier to ensure the plate member is fully inserted into the groove. When the groove is located closer to the inside of the corner recess, the plate member can slide into the groove along the inner surface of the corner recess. Conversely, when the groove is located in the middle of the width of the corner recess, the plate member can be attached closer to the outside, allowing for a wider placement space.

[0067] [Feature 4] An intermediate recess (70) is provided in the middle of the side edge of the top plate portion (20A) so that when stacking box bodies (10W) by offsetting them along the side edge, the corner protrusion (10T) of the upper box body (10W) can engage with the recess. The box body (10W) according to feature 3, wherein the groove (40) is divided by the intermediate recess (70).

[0068] According to Feature 4, even when stacking boxes with a slight offset from each other, the boxes engage with each other, resulting in a stable stack.

[0069] [Feature 5] The corner recess (24) and the corner projection (10T) are L-shaped and run along the side edge of the top plate (20A). The box body (10W) according to feature 4, wherein the intermediate recess (70) is T-shaped, formed by combining two L-shapes, and is capable of receiving the corner protrusions (10T) of the two box bodies (10W).

[0070] According to Feature 5, since the corner recess and corner projection are L-shaped, the corner projection faces the inner surface of the corner recess in two directions, further restricting the displacement between the boxes. Furthermore, it becomes possible to place two boxes side by side on top of one box, expanding the variations in box placement.

[0071] [Feature 6] A box body (10, 10W) ​​according to any one of the features 1 to 5, wherein at least one of the pair of groove side walls (43, 45) of the groove (40) has a recessed portion (47) that is recessed to widen a part of the groove (40), or a notch (48) that opens up a part of the groove (40).

[0072] According to Feature 6, even if the plate member is warped, the warped portion will be received in the recessed or notched section. In other words, plate members that have warped due to aging or other factors will be easier to install.

[0073] [Feature 7] The groove (40) extends along the outer edge of the top plate (20A), The recessed portion (47) is formed in the inner groove side wall (43) of the pair of groove side walls (43, 45). The box body (10,10W) according to feature 6, wherein the outer groove side wall (45) of the pair of groove side walls (43,45) has the notch (48) formed at a position opposite to the recessed portion (47) of the inner groove side wall (43).

[0074] According to Feature 7, the curved plate members can be easily attached in either direction.

[0075] While this specification and drawings disclose specific examples of the technology included in the claims, the technology described in the claims is not limited to these specific examples, but also includes various modifications and changes to these examples, as well as parts of the examples taken individually. [Explanation of symbols]

[0076] 10,10W box body 10T Corner protrusion 20 Top plate components 20A Top panel 20T Top panel protrusion 24 Corner recess 40 groove section 47. Sinkhole 48 Notch 70 Intermediate recess 80 Intermediate groove section 100 Plate members

Claims

1. A box-shaped structure with an open bottom, which can be used as a platform on which objects are placed. The top plate portion is provided with grooves that allow a plate member to be stood upright, A box-shaped body in which the end of the groove is open.

2. The box according to claim 1, wherein when a pair of box bodies are placed side by side, the grooves extending in the side-by-side direction are aligned in a straight line, and the plate member can be erected across the pair of box bodies.

3. Corner recesses provided at the four corners of the aforementioned top plate, The box body is provided with a corner projection located at the lower end of the side wall, which can engage with the corner recess of the lower box body when the boxes are stacked on top of each other. The box body according to claim 1 or 2, wherein the groove extends along the outer edge of the top plate and communicates with the corner recess.

4. The box body according to claim 1 or 2, wherein at least one of the pair of groove side walls of the groove portion has a recessed portion that widens a part of the groove portion, or a notch that opens up a part of the groove portion.

5. The groove extends along the outer edge of the top plate portion, The recessed portion is formed in the inner groove side wall of the pair of groove side walls. The box body according to claim 4, wherein the outer groove side wall of the pair of groove side walls has the notch formed at a position opposite to the recessed portion of the inner groove side wall.

6. The middle portion of the side edge of the top plate is provided with an intermediate recess that can engage with the corner protrusion of the upper box when stacking boxes in a staggered manner along their side edges. The box body according to claim 3, wherein the groove portion is divided by the intermediate recess.

7. The aforementioned corner recess and corner projection are L-shaped and run along the side edge of the top plate. The box body according to claim 6, wherein the intermediate recess is T-shaped, formed by combining two L-shapes, and is capable of receiving the corner protrusions of the two box bodies.

Images