Packaging box

Abstract

The packaging box includes a pallet that forms a bottom portion of an accommodating space in which a product to be packaged is accommodated, a first panel that forms an upper portion of the accommodating space, and four more panels surrounds the accommodating space from four sides. Among panels that belong to a panel group including the first panel and the four more panels, a slope panel that is one or more of the panels has, at one or more positions on a back-surface side facing the accommodating space, one or more leg portions that protrude toward the accommodating space. In an unpacked state, by connecting the slope panel to the pallet in a posture in which the leg portions are placed in contact with a support surface, a slope surface opposite to the back surface of the slope panel, forms a downwardly inclined surface.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Japanese Patent Application No. 2025-058210 filed on Mar. 31, 2025, the entire contents of which are incorporated herein by reference.BACKGROUNDField of the Disclosure

[0002] The present disclosure relates to a packaging box, and particularly to a packaging box for accommodating a product to be packaged having at least one caster.Description of the Related Art

[0003] Conventionally, a foldable slope that can be accommodated within a case together with a product has been known (see JP 2006-341896A).SUMMARY

[0004] According to JP 2006-341896A, a packaging case made of cardboard is formed by using a cardboard pallet as a bottom portion, and placing a side surface portion to cover the bottom portion from above. A product and a foldable slope made of a pulp material are accommodated in the packaging case. The product is placed on an upper surface of the cardboard pallet. The foldable slope is fixed to a front surface portion of the pallet via a hinge. When unpacking the packaging case, the side surface portion is removed, and thereafter the foldable slope is opened flat using the hinge portion as a fulcrum, thereby forming a slope surface extending from the front surface portion of the pallet.

[0005] However, the structure described above is designed to accommodate a very lightweight product and is therefore not suitable for accommodating a heavy product. This is also understood from the disclosure stating that the pallet and the case are made of cardboard, and the foldable slope is made of pulp. That is, when a heavy product is unloaded from the pallet via this slope, there is a possibility that the slope will be damaged.

[0006] From the viewpoint of accommodating the slope that has been folded together with the product in the case as disclosed in JP 2006-341896A, the slope needs to be made of a material that is foldable and can be easily opened by a rotational movement using the hinge portion as the fulcrum. For these reasons, with the structure disclosed in JP 2006-341896A, it is difficult to implement a slope suitable for conveying heavy products.

[0007] The present disclosure has been made in view of the above problem, and an object thereof is to provide a packaging box which enables unloading using casters, without preparing a separate slope, even when a product to be conveyed is a heavy object.

[0008] A packaging box according to the present disclosure is a packaging box for accommodating a product to be packaged having at least one caster, the packaging box including:

[0009] a pallet that is placed on a support surface and forms a bottom portion of an accommodating space in which the product to be packaged is accommodated;

[0010] a first panel that is disposed to face the pallet in a vertical direction and forms an upper portion of the accommodating space; and

[0011] a second panel, a third panel, a fourth panel, and a fifth panel that surround the accommodating space from four directions and each form a side portion of the accommodating space,

[0012] wherein a slope panel, which is composed of one or more of the first panel, the second panel, the third panel, the fourth panel, and the fifth panel that belong to a panel group, includes one or more leg portions that protrude toward the accommodating space and are formed at one or more positions on a back surface of the slope panel, the back surface being one of a pair of main surfaces of the slope panel that faces the accommodating space, and

[0013] when the packaging box is in an unpacked state in which the panels belonging to the panel group have been removed, the slope panel is connected to the pallet directly or via another member in an orientation in which the leg portions of the slope panel are in contact with the support surface, so that a slope surface of the slope panel, the slope surface being a main surface opposite to the back surface, forms a downwardly inclined surface extending from a height of an upper surface of the pallet on which the product to be packaged is placed to a height of the support surface.

[0014] According to the configuration described above, leg portions that protrude toward the accommodating space are formed on a back surface of a slope panel that is one or more of panels belonging to the panel group. Accordingly, by connecting the slope panel to the pallet in a posture in which the leg portions are placed on a support surface, one or more of a top surface and side surfaces of the packaging box form a slope surface.

[0015] That is, according to the configuration described above, it is unnecessary to house a foldable slope in the accommodating space. Accordingly, it is unnecessary to configure the slope itself using a foldable material, and it is possible to form a slope that can be used even when unloading a heavy product.

[0016] From the viewpoint of increasing the load-bearing capacity of the pallet and the slope panel, it is preferable that the pallet and each of the panels belonging to the panel group are made of wood.

[0017] In this case, among the panels belonging to the panel group, a panel that does not correspond to the slope panel may be a wooden member having a slatted-board configuration that places an outside of the accommodating space and an inside of the accommodating space in communication with each other. Thus, it is possible to implement a packaging box suitable for conveying a heavy object while suppressing an increase in the weight of the packaging box itself beyond necessity.

[0018] A plurality of panels belonging to the panel group each may correspond to the slope panel,

[0019] each of the slope panels may have a different protrusion length of the leg portion formed on the back surface of the slope panel,

[0020] when the packaging box is in the unpacked state,

[0021] a specific slope panel, which is the slope panel having the longest protrusion length of the leg portion among the slope panels, may be connected directly to the pallet in an orientation in which the leg portions are in contact with the support surface, and

[0022] the slope panels other than the specific slope panel may be connected to each other in an orientation in which the leg portions are in contact with the support surface, such that the slope panel having a relatively longer protrusion length of the leg portion is located closer to the pallet, whereby respective slope surfaces of a plurality of the slope panels including the specific slope panel are connected to form the downwardly inclined surface.

[0023] According to the configuration described above, as a result of two or more panels that are applicable as the slope panel being connected, even when the pallet height is high, it is possible to reduce the inclination angle of the downward inclination of the slope surface. The inclination angle is set to preferably 5° or less, more preferably 4° or less, and even more preferably 3° or less.

[0024] As one example, a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel may be constituted by one panel belonging to the side panel group and the first panel, and

[0025] among the slope panels, the panel belonging to the side panel group may constitute the specific slope panel.

[0026] Among the plurality of slope panels, at least the specific slope panel may have a plurality of the leg portions having different protrusion lengths formed on the back surface, and

[0027] in the unpacked state, the slope panel having the plurality of the leg portions may be connected to the pallet in an orientation such that the leg portion having a relatively longer protrusion length is located closer to the pallet.

[0028] Out of the plurality of panels that are applicable as the slope panel, the specific slope panel is arranged at a position closest to the pallet and therefore forms a portion of the slope surface located at the highest position from the support surface. Accordingly, by providing a plurality of leg portions on a back surface of the specific slope panel and placing the specific slope panel such that the respective leg portions are in contact with the support surface, the slope surface can be stabilized.

[0029] The packaging box may include a connecting member disposed in the accommodating space,

[0030] wherein, in the unpacked state, the connecting member may be disposed on the back surface of the slope panel at a location where a pair of the slope panels is connected, and the pair of the slope panels may be connected via the connecting member.

[0031] According to the configuration described above, the connecting portion of the plurality of panels that are applicable as the slope panel can be stabilized. The connecting member may be configured such that a surface of the connecting member that is opposite to the slope panel is placed on the support surface.

[0032] The product to be packaged may include an adjuster that protrudes downward from a surface on which the caster is mounted and whose protrusion length is adjustable, and

[0033] the packaging box may include:

[0034] an adjuster base plate mounted on the pallet, on which the adjuster is brought into contact when the product to be packaged is accommodated in the accommodating space; and

[0035] a caster base plate disposed in the accommodating space,

[0036] wherein the pallet may have a recessed region into which the caster base plate is insertable, and

[0037] in the unpacked state, with the caster base plate inserted in the recessed region, the protrusion length of the adjuster may be reduced so that the caster is brought into contact with the caster base plate, thereby enabling an upper surface of the caster base plate and an upper surface of the pallet to allow the product to be packaged to be transported by the caster.

[0038] The packaging box may include a plurality of guide members disposed in the accommodating space,

[0039] wherein, in the unpacked state, the guide members may be fixed along at least one of outer edges of an upper surface of the pallet that extends in a direction parallel to a direction in which the slope panel is connected.

[0040] According to the configuration described above, in the unpacked state, it is possible to suppress the product to be packaged from coming off the pallet when the product to be packaged is conveyed from the pallet via the slope surface.

[0041] The packaging box may include an accessory storage box disposed outside the product to be packaged in the accommodating space,

[0042] the accessory storage box may store the connecting member, the caster base plate, and the guide members, and

[0043] with one or more of the panels belonging to the panel group removed, the accessory storage box may be removable to outside the accommodating space.

[0044] The slope panel may include a slope guide that extends, as a structure protruding outward, along a pair of opposing outer edges on the slope surface, and

[0045] when the packaging box is in the unpacked state, the slope guide may extend in a direction in which the slope panel is connected to the pallet.

[0046] According to the configuration described above, in an unpacked state of the packaging box, it is possible to suppress the product from coming off the slope panel when the product is conveyed with casters of the product being moved along the slope surface.

[0047] The slope guide may be configured as a separate plate-like member provided on the slope surface.

[0048] According to the packaging box of the present disclosure, even when a product to be conveyed is a heavy object, it is possible to unload the product using casters without preparing a separate slope.BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG. 1 is a perspective view schematically showing a structure of a packaging box according to one embodiment of the present disclosure.

[0050] FIG. 2 is a perspective view schematically showing the structure of the packaging box according to the embodiment of the present disclosure, as viewed from a direction different from that in FIG. 1.

[0051] FIG. 3 is a perspective view schematically showing constituent elements of the packaging box 1 shown in FIG. 1 in an exploded manner.

[0052] FIG. 4 is a perspective view schematically showing one example of a group of attachment accessories that are housed in an accessory storage box 7 shown in FIG. 3.

[0053] FIG. 5A is a perspective view schematically showing a first panel 11 shown in FIG. 3.

[0054] FIG. 5B is a perspective view schematically showing the first panel 11 shown in FIG. 3, as viewed from a direction different from that in FIG. 5A.

[0055] FIG. 6A is a perspective view schematically showing a second panel 12 shown in FIG. 3.

[0056] FIG. 6B is a perspective view schematically showing the second panel 12 shown in FIG. 3, as viewed from a direction different from that in FIG. 6A.

[0057] FIG. 7 is a schematic side view of the first panel 11 shown in FIGS. 5A and 5B, and the second panel 12 shown in FIGS. 6A and 6B.

[0058] FIG. 8 is a schematic perspective view illustrating one procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0059] FIG. 9 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0060] FIG. 10 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0061] FIG. 11 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0062] FIG. 12 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0063] FIG. 13 is a schematic, partially enlarged cross-sectional view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0064] FIG. 14 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0065] FIG. 15 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0066] FIG. 16 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0067] FIG. 17 is a schematic, partially enlarged cross-sectional view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0068] FIG. 18 is a schematic, partially enlarged cross-sectional view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0069] FIG. 19 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0070] FIG. 20 is a perspective view schematically showing a structure of a buffer member 23.

[0071] FIG. 21 is a schematic, partially enlarged cross-sectional view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0072] FIG. 22 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0073] FIG. 23 is a schematic, partially enlarged cross-sectional view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0074] FIG. 24 is a schematic perspective view illustrating the procedure for unpacking the packaging box 1 shown in FIGS. 1 and 2.

[0075] FIG. 25A is a schematic perspective view showing the pallet 5 to which a slope is attached.

[0076] FIG. 25B is a schematic perspective view showing the pallet 5 to which the slope is attached, as viewed from a direction different from that in FIG. 25A.

[0077] FIG. 26 is a diagram schematically showing a state in which a product to be packaged 3 is unloaded from the pallet 5 via the slope.DETAILED DESCRIPTION

[0078] A packaging box according to an embodiment of the present disclosure will be described with reference to the drawings of FIGS. 1 to 26 as appropriate. It is to be noted here that the diagrams described below are schematic representations, and thus the dimensional ratio and the number of elements in each diagram are not necessarily the same as the actual dimensional ratio and the actual number of elements.

[0079] FIGS. 1 and 2 are schematic perspective views of the packaging box according to the present embodiment, which are viewed from different directions. FIG. 3 is a perspective view schematically showing constituent elements of the packaging box 1 shown in FIG. 1 in an exploded manner.

[0080] The packaging box 1 is a hollow box-shaped member that is used to accommodate and convey a product to be packaged 3. The product to be packaged 3 is a product to be accommodated in an internal space (accommodating space) of the packaging box 1, and is not particularly limited, but is, for example, a heavy object whose weight exceeds 100 kg. When the product to be packaged 3 is a heavy object, the product to be packaged 3 generally includes casters 52 that can be used during conveyance and adjusters 51 for height adjustment (see FIG. 13, which will be described later).

[0081] As shown in FIGS. 1 to 3, the packaging box 1 includes a pallet 5 that forms a bottom portion of the accommodating space. For packaging, the product to be packaged 3 is placed on an upper surface of the pallet 5. The pallet 5 is preferably made of wood. A bottom surface of the pallet 5 is placed on a floor surface 90. The floor surface 90 forms a support surface.

[0082] The packaging box 1 includes a first panel 11 that is disposed to face the pallet 5 in a vertical direction and forms an upper portion of the accommodating space. The first panel 11 constitutes an upper panel.

[0083] The packaging box 1 includes a second panel 12, a third panel 13, a fourth panel 14, and a fifth panel 15 that are arranged so as to surround the accommodating space from four sides. The second panel 12 and the third panel 13 are disposed to face each other, and the fourth panel 14 and the fifth panel 15 are disposed to face each other. In the packaging box 1, according to the present embodiment shown in FIGS. 1 to 3, the second panel 12, the fifth panel 15, the third panel 13, and the fourth panel 14 are provided in this order in a counterclockwise direction when the pallet 5 is viewed from the first panel 11 side. Each of the second panel 12, the third panel 13, the fourth panel 14, and the fifth panel 15 constitutes a side panel.

[0084] Hereinafter, reference is made as appropriate to an X-Y-Z coordinate system in which a direction in which the second panel 12 and the third panel 13 face each other is defined as X axis, a direction in which the fourth panel 14 and the fifth panel 15 face each other is defined as Y axis, and a direction in which the first panel 11 and the pallet 5 face each other is defined as Z axis.

[0085] In the description given below, in the case where it is necessary to distinguish between positive and negative directions when expressing a direction, the positive and negative directions are indicated by positive and negative signs, such as “+X direction” and “−X direction”. In the case where it is unnecessary to distinguish between positive and negative directions when expressing a direction, the direction is simply indicated by “X direction”. That is, in the specification of the present application, in the case where simply the term “X direction” is used, it includes both “+X direction” and “−X direction”. The same applies to the Y direction and the Z direction.

[0086] Based on the above-described definition, a direction from the third panel 13 to the second panel 12 is +X direction, a direction from the fourth panel 14 to the fifth panel 15 is +Y direction, and a direction from the pallet 5 to the first panel 11 is +Z direction. In the case where the pallet 5 is placed on a horizontal surface, the +Z direction corresponds to a vertically upward direction.

[0087] In the packaging box 1, according to the present embodiment shown in FIGS. 1 to 3, the third panel 13 is made of a wooden member having a slatted-board configuration. That is, when the packaging box 1 is viewed from a direction that faces directly to the third panel 13, or in other words, when the packaging box 1 is viewed from the −X direction side toward the +X direction side of the packaging box 1, a portion of the accommodating space that is the internal space of the packaging box 1 can be visually seen.

[0088] Likewise, in the packaging box 1 according to the present embodiment, the fourth panel 14 and the fifth panel 15 are made of wooden members having a slatted-board configuration. That is, when the packaging box 1 is viewed from the −Y direction side toward the +Y direction side, or from the +Y direction side toward the −Y direction side, a portion of the accommodating space that is the internal space of the packaging box 1 can be visually seen.

[0089] On the other hand, in the packaging box 1 according to the present embodiment, the first panel 11 and the second panel 12 are made of wooden members without slatted-board configuration. That is, when the packaging box 1 is viewed from the +Z direction side toward the −Z direction, or from the +X direction side toward the −X direction side, the accommodating space that is the internal space of the packaging box 1 cannot be visually seen.

[0090] As will be described later, in the packaging box 1 according to the present embodiment, out of a panel group that is composed of the first panel 11, the second panel 12, the third panel 13, the fourth panel 14, and the fifth panel 15, the first panel 11 and the second panel 12 that do not have a slatted-board configuration are used as a slope for unloading the product to be packaged 3 from the pallet 5. In the specification of the present application, as described above, out of the panels that belong to the panel group, one or more panels that are used as the slope will be referred to as “slope panel”.

[0091] However, the present disclosure does not exclude a possibility that one or more panels out of the third panel 13, the fourth panel 14, and the fifth panel 15 that are not used as the slope panel are made of a wooden member without a slatted-board configuration.

[0092] In the present embodiment, as shown in FIG. 3, an accessory storage box 7, corner members 21, upper pressing members 22, and buffer members 23 are placed in the accommodating space of the packaging box 1 that is surrounded by the panels (11, 12, 13, 14, and 15) and the pallet 5.

[0093] The corner members 21 and the upper pressing members 22 are provided for the purpose of preventing the product to be packaged 3 from moving in the accommodating space of the packaging box 1 and colliding with the panels (11, 12, 13, 14, and 15) during shipping. However, either the corner members 21 or the upper pressing members 22, or both of the corner members 21 and the upper pressing members 22, may be omitted depending on the shape, the size, the material, and the like of the product to be packaged 3.

[0094] Specifically, the corner members 21 are members that are provided to cover an outer side of corner portions of the product to be packaged 3, for the purpose of preventing the product to be packaged 3 from coming into direct contact with the side panels (12, 13, 14, and 15), and made of, for example, a cushioning material such as a foamed resin or a foamed rubber. The upper pressing members 22 are members that are provided to cover a portion of an upper portion (the +Z direction side) of the product to be packaged 3, for the purpose of preventing the product to be packaged 3 from coming into direct contact with the first panel 11 that constitutes the upper panel, and made of, for example, a cushioning material such as a foamed resin or a foamed rubber.

[0095] The buffer members 23 are provided between a portion of a bottom portion of the product to be packaged 3 and an upper surface of the pallet 5, for the purpose of placing the product to be packaged 3 on the upper surface of the pallet 5 in a stable manner. One example of a detailed structure of the buffer members 23 will be described later with reference to FIG. 20.

[0096] As will be described later, when the packaging box 1 according to the present embodiment is in a state (hereinafter referred to as “unpacked state”) in which the panels (11, 12, 13, 14, and 15) that belong to the panel group are removed, by connecting the above-described slope panel to the pallet 5, it is possible to form a slope that has a downward inclination and extends from the pallet 5 toward the surface (the floor surface 90) on which the packaging box 1 is placed. In the accessory storage box 7, attachment accessories that are used to transition the packaging box 1 from the state shown in FIGS. 1 and 2 (hereinafter referred to as “packed state”) into the state in which the slope is connected to the pallet 5 are housed. The material of the accessory storage box 7 is not particularly limited. The accessory storage box 7 is formed by, for example, combining a plurality of wooden members.

[0097] FIG. 4 is a perspective view schematically showing one example of a group of attachment accessories that are housed in the accessory storage box 7. In the example shown in FIG. 4, adjuster base plates 41, caster base plates 42, guide members 43, a connecting member 44, and a stepped plate 45 are housed in the accessory storage box 7. Details of these attachment accessories will be described later.

[0098] FIGS. 5A and 5B are perspective views schematically showing the first panel 11, which is one of panels belonging to a panel group and constituting a slope panel in a packaging box 1 according to the present embodiment, the first panel 11 being viewed from different directions.

[0099] As shown in FIGS. 5A and 5B, the first panel 11 includes: a main surface (a first slope surface 11a) that is exposed to outside of the accommodating space when the packaging box 1 is in the packed state; and a main surface (a first back surface 11b) that is a surface opposite to the first slope surface 11a and faces the accommodating space when the packaging box 1 is in the packed state. The first slope surface 11a corresponds to “slope surface”, and the first back surface 11b corresponds to “back surface”.

[0100] As shown in FIG. 5A, the first panel 11 includes, on the first slope surface 11a side, first slope guides 31 that extend along the X direction at positions near a pair of outer edges of the first panel 11 that are spaced apart from each other in the Y direction. In the present embodiment, the first slope guides 31 extend in the X direction between an end portion 11p of the first panel 11 that is on the −X direction side and an end portion 11q of the first panel 11 that is on the +X direction side. The first slope guides 31 correspond to “slope guide”.

[0101] The first slope guides 31 are structural bodies having a height (a dimension in the Z direction) higher than the first slope surface 11a, and are formed by, for example, bonding plate members extending in the X direction onto the first slope surface 11a. As one detailed example, the first panel 11 is formed by bonding plate members each having a thickness of about 3 mm near respective outer edges of the first panel 11 in the Y direction, on a first slope surface 11a made of a plate member having a thickness of about 25 mm. A width (a dimension in the Y direction) of the first slope guides 31 is not particularly limited, and is, for example, about 50 mm to 150 mm.

[0102] A width (a dimension in the Y direction) and a length (a dimension in the X direction) of the first panel 11 are set according to the size of the product to be packaged 3 to be packaged. As one example, the first panel 11 has a width of 600 mm to 800 mm and a length of 1,100 mm to 1,500 mm. Also, in the first slope surface 11a, a region where the first slope guides 31 are not formed has a width of, for example, 350 mm to 750 mm.

[0103] As shown in FIG. 5B, the first panel 11 includes, on the first back surface 11b side, a first leg portion 32 that protrudes outward from the first back surface 11b. The first leg portion 32 protrudes toward the accommodating space (inward) when the packaging box 1 is in the packed state. The first leg portion 32 corresponds to “leg portion”.

[0104] FIGS. 6A and 6B are perspective views schematically showing the second panel 12, which is one of panels belonging to a panel group and constituting a slope panel in a packaging box 1 according to the present embodiment, the second panel 12 being viewed from different directions.

[0105] As shown in FIGS. 6A and 6B, the second panel 12 includes: a main surface (a second slope surface 12a) that is exposed to outside of the accommodating space when the packaging box 1 is in the packed state; and a main surface (a second back surface 12b) that is a surface opposite to the second slope surface 12a and faces the accommodating space when the packaging box 1 is in the packed state. The second slope surface 12a corresponds to “slope surface”, and the second back surface 12b corresponds to “back surface”.

[0106] As shown in FIG. 6A, the second panel 12 includes, on the second slope surface 12a side, second slope guides 33 that extend along the Z direction at positions near a pair of outer edges of the second panel 12 that are spaced apart from each other in the Y direction. In the present embodiment, the second slope guides 33 extend in the Z direction between an end portion 12p of the second panel 12 that is on the −Z direction side and an end portion 12q of the second panel 12 that is on the +Z direction side. The second slope guides 33 corresponds to “slope guide”.

[0107] The second slope guides 33 are structural bodies having a height (a dimension in the X direction) higher than the second slope surface 12a, and are formed by, for example, bonding plate members extending in the Z direction onto the second slope surface 12a. As one detailed example, the second panel 12 is formed by bonding plate members each having a thickness of about 3 mm near respective outer edges of the second panel 12 in the Y direction, on a second slope surface 12a made of a plate member having a thickness of about 25 mm. A width (a dimension in the Y direction) of the second slope guides 33 is not particularly limited, and is, for example, about 50 mm to 150 mm.

[0108] A width (a dimension in the Y direction) and a length (a dimension in the Z direction) of the second panel 12 are set according to the size of the product to be packaged 3. As can be clearly seen from the configuration of the packaging box 1 shown in FIGS. 1 and 2, the width of the first panel 11 and the width of the second panel 12 are substantially the same. As used herein, the expression “substantially the same” is used to allow for manufacturing errors, and may include an error of, for example, 2% or less.

[0109] As one example, the second panel 12 has a width of 600 mm to 800 mm and a length of 1,100 mm to 1,500 mm. Also, in the second slope surface 12a, a region where the second slope guides 33 are not formed has a width of, for example, 350 mm to 750 mm.

[0110] As shown in FIG. 6B, the second panel 12 includes, on the second back surface 12b side, a second leg portion 34 that protrudes outward from the second back surface 12b. The second leg portion 34 protrudes toward the accommodating space (inward) when the packaging box 1 is in the packed state. The second leg portion 34 corresponds to “leg portion”. In the present embodiment, the second leg portion 34 includes three second leg portions 34 (34a, 34b, and 34c) that are formed at positions that are spaced apart in the Z direction on the second back surface 12b side of the second panel 12.

[0111] FIG. 7 is a schematic side view of the first panel 11 and the second panel 12, showing a state in which their leg portions 32 and 34 are in contact with a floor surface 90. In FIG. 7, for convenience of explanation, a U-V-W coordinate system is shown in addition to the X-Y-Z coordinate system referred to in FIGS. 1 and 2, the U-V-W coordinate system being a coordinate system in which the floor surface 90 is defined as a surface parallel to a U-V plane and a direction perpendicular to the U-V plane is defined as a W axis. As shown in FIG. 5A, in the packaging box 1 in the packed state shown in FIGS. 1 and 2, the first slope surface 11a of the first panel 11 lies in an X-Y plane. As shown in FIG. 6A, in the packaging box 1 in the packed state shown in FIGS. 1 and 2, the second slope surface 12a of the second panel 12 lies in a Y-Z plane.

[0112] As shown in FIG. 7, the first leg portion 32 of the first panel 11 and the second leg portion 34 of the second panel 12 have different protrusion lengths. The protrusion length of the first leg portion 32 is shorter than that of the second leg portion 34. Furthermore, in the present embodiment, as described above with reference to FIG. 6B, three second leg portions 34 (34a, 34b, and 34c) are formed on the second panel 12 at positions that are spaced apart in the Z direction. In the present embodiment, a protrusion length h34a of the second leg portion 34a, a protrusion length h34b of the second leg portion 34b, and a protrusion length h34c of the second leg portion 34c have the following relationship: h34a>h34b>h34c. Furthermore, the protrusion length h34c of the second leg portion 34c and the protrusion length h32 of the first leg portion 32 have the following relationship: h34c>h32.

[0113] As a result of the protrusion lengths of the second leg portions 34 (34a, 34b, and 34c) being designed as described above, when the second leg portions 34 (34a, 34b, and 34c) are placed on the floor surface 90, a surface of the second panel 12 on which the second leg portions 34 are not formed, that is, the second slope surface 12a, forms an inclined surface that slopes downward from the second leg portion 34a side, that is, from an end portion 12q of the second panel 12 on the +Z direction side, toward the second leg portion 34c side, that is, toward an end portion 12p of the second panel 12 on the −Z direction side.

[0114] Also, in the first panel 11, a protrusion length h32 of the first leg portion 32 is designed such that, when the first leg portion 32 is placed on the floor surface 90, a portion near an end portion 11p of the first panel 11 on a −X direction side also comes into contact with the floor surface 90. At this time, when the first leg portion 32 is placed on the floor surface 90, a surface of the first panel 11 on which the first leg portion 32 is not formed, that is, a first slope surface 11a, forms an inclined surface that slopes downward from an end portion 11q of the first panel 11 on a +X direction side toward the end portion 11p of the first panel 11 on the −X direction side.

[0115] An inclination angle θ11a of the first slope surface 11a in a state in which the first leg portion 32 is placed on the floor surface 90 and an inclination angle θ12a of the second slope surface 12a in a state in which the second leg portions 34 are placed on the floor surface 90 are set to preferably 5° or less, more preferably 4° or less, and even more preferably 3° or less. The inclination angle θ11a is an angle formed by the first slope surface 11a that is composed of the X-Y plane and the floor surface 90 that is composed of the U-V plane. Likewise, the inclination angle θ12a is an angle formed by the second slope surface 12a that is composed of the Y-Z plane and the floor surface 90 that is composed of the U-V plane. The inclination angle θ11a and the inclination angle θ12a are designed to have substantially the same value with a manufacturing error of ±10%.

[0116] As one example, the protrusion length h34a of the second leg portion 34a is 116 mm, the protrusion length h34b of the second leg portion 34b is 96 mm, the protrusion length h34c of the second leg portion 34c is 75 mm, and the protrusion length h32 of the first leg portion 32 is 40 mm. That is, the protrusion lengths have the following relationship: h34a>h34b>h34c>h32.

[0117] As one example, the first leg portion 32, the second leg portion 34a, the second leg portion 34b, and the second leg portion 34c each have a length in the U direction of 60 mm. As described above, when the inclination angle θ11a and the inclination angle θ12a are 5° or less, cos(θ11a) and cos(θ12a) are about 1.0, and thus a length of the first leg portion 32 in the X direction and a length of each of the second leg portion 34a, the second leg portion 34b and the second leg portion 34c in the Z direction may also be about 60 mm.

[0118] As one example, in the second panel 12, a spacing distance between the end portion 12q and the second leg portion 34a of the second panel 12 in the U direction is 100 mm, a spacing distance between the second leg portion 34a and the second leg portion 34b in the U direction is 350 mm, a spacing distance between the second leg portion 34b and the second leg portion 34c in the U direction is 350 mm, and a spacing distance between the second leg portion 34c and the end portion 12p of the second panel 12 in the U direction is 255 mm.

[0119] As one example, in the first panel 11, a spacing distance between the end portion 11q and the first leg portion 32 of the first panel 11 in the U direction is 400 mm, and a spacing distance between the first leg portion 32 and the end portion 11p of the first panel 11 in the U direction is 732 mm.

[0120] Hereinafter, a procedure for transitioning the state of the packaging box 1 from the packed state shown in FIGS. 1 and 2 to the unpacked state and forming the slope panel to the pallet 5 will be described with reference to the diagrams of FIGS. 8 to 26.Step S1

[0121] First, as shown in FIG. 8, the third panel 13 is removed. In the packaging box 1 in the packed state shown in FIGS. 1 and 2, the third panel 13 is connected to adjacent panels (11, 14, and 15) and the pallet 5 via fastening members (not shown) such as, for example, bolts or screws. To remove the third panel 13, the fastening members are removed, and thereafter the third panel 13 is removed.Step S2

[0122] Next, as shown in FIG. 9, the second panel 12 is removed. In the packaging box 1 in the packed state, as with the third panel 13, the second panel 12 is also connected to adjacent panels (11, 14, and 15) and the pallet 5 via fastening members (not shown) such as, for example, bolts or screws. To remove the second panel 12, as with the third panel 13, the fastening members (not shown) are removed, and thereafter the second panel 12 is removed.

[0123] At the time when the second panel 12 and the third panel 13 have been removed, the packaging box 1 is open on the −X direction side and the +X direction side. Step S1 and step S2 may be performed in reverse order.Step S3

[0124] Next, as shown in FIG. 10, the corner members 21 are removed through the open surface on the −X direction side and the open surface on the +X direction side. After that, as shown in FIG. 11, the accessory storage box 7 is removed through the open surface on the −X direction side or the open surface on the +X direction side. The corner members 21 and the accessory storage box 7 may be removed in reverse order.Step S4

[0125] Next, as shown in FIG. 12, the adjuster base plates 41 (see FIG. 4) that have been taken out of the accessory storage box 7 are placed on the upper surface of the pallet 5. In the present embodiment, four adjuster base plates 41 are housed in the accessory storage box 7, and the four adjuster base plates 41 are placed on the upper surface of the pallet 5 at positions directly below four adjusters 51 that are provided on the bottom portion of the product to be packaged 3. After that, as shown in FIG. 13, each adjuster 51 of the product to be packaged 3 is lowered until it comes fully into contact with the corresponding adjuster base plate 41. FIG. 13 is an enlarged cross-sectional view schematically showing the vicinity of one of the adjusters 51 that are provided on the product to be packaged 3.Step S5

[0126] Next, as shown in FIG. 14, the first panel 11 is removed. To remove the first panel 11, the first panel 11 may be removed after the fastening members (not shown) have been removed.Step S6

[0127] After the first panel 11 has been removed, the +Z side of the packaging box 1 is open. Then, the upper pressing members 22 are removed through the opening on the +Z side.Step S7

[0128] Next, as shown in FIG. 15, the fourth panel 14 and the fifth panel 15 are removed from the pallet 5. The fourth panel 14 and the fifth panel 15 may be removed after fastening members (not shown) have been removed.

[0129] When step S7 has been performed, the packaging box 1 is in a state in which the first panel 11, the second panel 12, the third panel 13, the fourth panel 14, and the fifth panel 15 have been removed, that is, in an unpacked state.Step S8

[0130] Next, as shown in FIGS. 16 and 17, the caster base plates 42 (see FIG. 4) that have been taken out of the accessory storage box 7 are placed on the upper surface of the pallet 5. As shown in FIG. 13, the pallet 5 has recessed regions 42p previously formed in part of the upper surface, and the caster base plates 42 are placed by being fitted into the respective recessed regions 42p. The recessed regions 42p are formed at positions corresponding to regions that face the casters 52 of the product to be packaged 3 in the Z direction. FIG. 17 is an enlarged cross-sectional view schematically showing the vicinity of one of the adjusters 51 provided on the product to be packaged 3, as in FIG. 13.Step S9

[0131] Next, as shown in FIG. 18, a tip end of each adjuster 51 is gradually projected toward the −Z direction. Before step S9, the adjusters 51 are in full contact with the adjuster base plates 41. By slightly projecting the position of each adjuster 51 toward the −Z direction, it is possible to slightly move the height position of a bottom portion of the product to be packaged 3 in the +Z direction while maintaining the contact state between each adjuster 51 and the corresponding adjuster base plate 41. As a result, as compared with the state of close contact between the buffer members 23 and the product to be packaged 3 at the time point shown in FIG. 16, the state of close contact between the buffer members 23 and the product to be packaged 3 is alleviated, and a gap is formed therebetween.Step S10

[0132] After step S9, as shown in FIG. 19, the buffer members 23 are pulled out of the product to be packaged 3.

[0133] FIG. 20 is a perspective view schematically showing a structure of each buffer member 23. The buffer member 23 includes a base member 23a, a buffer body 23b that is formed on an upper surface of the base member 23a, and a tape material 23c that fixes the entire buffer member including the base member 23a and the buffer body 23b. For example, the base member 23a is made of a plate material, and the buffer body 23b is made of a resin that has buffering properties, such as urethane. As a result of step S9 being performed, the close contact state between the buffer members 23 and the product to be packaged 3 is lessened.

[0134] More specifically, after step S9 has been performed, the tape material 23c is cut. As a result, the base member 23a and the buffer body 23b can be moved independently of the tape material 23c. Accordingly, the base member 23a and the buffer body 23b can be easily pulled out from a spacing between the product to be packaged 3 and the pallet 5 in the Z direction.

[0135] The structure of the buffer member 23 shown in FIG. 20 is merely one example. As another example, the buffer member 23 may include, on an upper surface of the buffer body 23b, a cover member made of a material that has buffering properties lower than those of the buffer body 23b, and the tape material 23c may fix a stack including the base member 23a, the buffer body 23b, and the cover member.Step S11

[0136] Next, as shown in FIG. 21, the tip end of each adjuster 51 is gradually retracted toward the +Z direction to move the height position of the bottom portion of the product to be packaged 3 toward the −Z direction. As a result, the height of the corresponding caster 52 that is provided on the bottom portion of the product to be packaged 3 is also moved (lowered) toward the −Z direction. When the caster 52 comes into contact with the corresponding caster base plate 42, the position adjustment of the adjuster 51 is completed.Step S12

[0137] At the time when step S11 has been performed, the casters 52 of the product to be packaged 3 are in contact with the upper surface of the pallet 5 via the caster base plates 42. Accordingly, as shown in FIG. 22, the adjuster base plates 41 can be removed from the pallet 5. More specifically, as shown in FIG. 23, the tip end of each adjuster 51 is retracted toward the +Z direction so that the tip end of the adjuster 51 is spaced apart from the adjuster base plate 41 in the Z direction, and thereafter the adjuster base plate 41 is removed.Step S13

[0138] Next, as shown in FIG. 24, the guide members 43 (see FIG. 4) that have been taken out of the accessory storage box 7 are placed on the upper surface of the pallet 5. In the present embodiment, the guide members 43 are provided along a pair of outer edges that extend in the X direction and face each other in the Y direction out of the outer edges of the pallet 5. In FIG. 4, an example is shown in which four guide members 43 are housed in the accessory storage box 7. In this case, two guide members 43 are provided in a line in the X direction along the outer edge of the upper surface of the pallet 5 on the −Y side, and the remaining two guide members 43 are provided in a line in the X direction along the outer edge of the upper surface of the pallet 5 on the +Y side. However, the number of guide members 43 is not limited thereto.

[0139] Fastening members 61, such as bolts or screws that have been removed in steps before step S13, may be used to attach the guide members 43 to the pallet 5.

[0140] After step S13 has been performed, the product to be packaged 3 is prevented from falling off the pallet 5 in the Y direction when the product to be packaged 3 is moved. However, the present disclosure does not exclude a case where the packaging box 1 does not include the guide members 43.Step S14

[0141] Next, as shown in FIGS. 25A and 25B, the second panel 12 is attached to the pallet 5 with the second slope surface 12a facing in the +Z direction. At this time, fastening members 61, such as bolts or screws that were removed in steps before step S13, may be used.

[0142] As described above with reference to FIG. 7, the second panel 12 includes, on the second back surface 12b side, three second leg portions 34 (34a, 34b, and 34c) that protrude outward. When the second panel 12 is placed such that the second leg portions 34 face toward and contact the floor surface 90, the second slope surface 12a of the second panel 12 forms an inclined surface that slopes downward from the end portion 12q of the second panel 12 toward the end portion 12p of the second panel 12.

[0143] At this time, the connecting member 44 (see FIG. 4) that has been taken out of the accessory storage box 7 is placed directly below a position at which the end portion 12p of the second panel 12 is located, and then the end portion 12p of the second panel 12 is brought into contact with a part of an upper surface of the connecting member 44. After that, a contact portion between the second panel 12 and the connecting member 44 is fastened by fastening members 61, such as bolts or screws. The connecting member 44 may have a height that is lower than the height (protrusion length) of the second leg portion 34c and higher than the height (protrusion length) of the first leg portion 32.

[0144] After that, the first panel 11 is attached to the second panel 12, with the first slope surface 11a facing toward the +Z direction side. As described above with reference to FIG. 7, the first panel 11 includes, on the first back surface 11b side, the first leg portion 32 that protrudes outward. By placing the first leg portion 32 in a manner such that it faces toward and contacts the floor surface 90, the first slope surface 1la of the first panel 11 forms an inclined surface that has a downward inclination from the end portion 11q of the first panel 11 toward the end portion 11p of the first panel 11.

[0145] Specifically, the first panel 11 is brought into contact with a portion of an upper surface of the connecting member 44. At this time, the position of the first panel 11 is adjusted such that the end portion 11q of the first panel 11 and the end portion 12p of the second panel 12 are brought into contact with each other on the upper surface of the connecting member 44. After that, a contact portion between the first panel 11 and the connecting member 44 is fastened by fastening members 61, such as bolts or screws. The end portion 11p of the first panel 11 is in contact with the floor surface 90 (see FIG. 7).

[0146] At this point in time, a slope that has a downward inclination from the upper surface of the pallet 5 toward the floor surface 90 is formed by the second slope surface 12a and the first slope surface 11a. As described above, the second slope surface 12a is one of the main surfaces of the second panel 12 of the packaging box 1, and the second panel 12 is used as the slope. Likewise, the first slope surface 11a is one of the main surfaces of the first panel 11 of the packaging box 1, and the first panel 11 is used as the slope. That is, in the present embodiment, the first panel 11 and the second panel 12 each correspond to the “slope panel”.

[0147] Furthermore, in the present embodiment, out of the first panel 11 and the second panel 12 that constitute the slope panel, the second panel 12 is connected directly to the pallet 5, and the first panel 11 is connected to the second panel 12. That is, in the present embodiment, out of the first panel 11 and the second panel 12 that constitute the slope panel, the second panel 12 corresponds to “specific slope panel”. As described above, the second leg portions 34 (34a, 34b, and 34c) that are formed on the back surface of the second panel 12 have protrusion lengths longer than the protrusion length of the first leg portion 32 that is formed on the back surface of the first panel 11.

[0148] Also, the second panel 12 that corresponds to the specific slope panel is provided at a position farther from the floor surface 90 than a position at which the first panel 11 is provided, the first panel 11 corresponding to a slope panel that is not the specific slope panel. From this viewpoint, in consideration of stability as the slope, three second leg portions 34 are formed on the back surface side of the second panel 12, which is greater than the number of first leg portions 32 formed on the back surface side of the first panel 11. However, from the viewpoint of stability, it is only necessary that a plurality of leg portions are formed on the back surface side of the specific slope panel, and a plurality of leg portions may also be formed on the back surface side of the slope panel that is not the specific slope panel.

[0149] Furthermore, the stepped plate 45 (see FIG. 4) that has been taken out of the accessory storage box 7 is placed on the outer side of the end portion 11p that is an end portion of the first panel 11 farthest from the second panel 12 so as to be continuous with the first panel 11. The stepped plate 45 is provided for the purpose of further reducing a height difference from a height position of the end portion 11p of the first panel 11 to a height position of the floor surface 90 in the state shown in FIG. 25B. However, the stepped plate 45 is not essential in the present disclosure.Step S15

[0150] After that, as shown in FIG. 26, the casters 52 of the product to be packaged 3 are moved along the slope formed by the second slope surface 12a and the first slope surface 11a. As a result, the product to be packaged 3 can be smoothly lowered from a height position of the upper surface of the pallet 5 to a height position of the floor surface 90.

[0151] At this time, as shown in FIGS. 25A and 25B, the second slope guides 33 are provided on both sides of the second slope surface 12a, and the first slope guides 31 are provided on both sides of the first slope surface 11a. As described above, the slope guides (31 and 33) are configured to extend as structural bodies whose height is higher than the slope surfaces (12a and 11a). Accordingly, the product to be packaged 3 is prevented from falling off in a direction perpendicular to the slope extension direction when the product to be packaged 3 is moved along the slope formed by the second slope surface 12a and the first slope surface 11a. OTHER EMBODIMENTS

[0152] Hereinafter, other embodiments will be described.

[0153] <1> In the embodiment described above, out of the panels that belong to the panel group that constitute the packaging box 1, the first panel 11 and the second panel 12 correspond to the slope panel. However, the number of panels that constitute the slope panel may be one, three, or more. In the case where the slope panel is formed using three or more panels, the packaging box 1 preferably has a cubic shape.

[0154] <2> In the embodiment described above, out of the first panel 11 and the second panel 12 that correspond to the slope panel, the second panel 12 is connected directly to the pallet 5, and used as the specific slope panel. However, the first panel 11 may be used as the specific slope panel. In this case, a plurality of leg portions that have different protrusion lengths may be formed on the back surface side of the first panel 11.

[0155] In the case where a plurality of panels form the slope panel, it is preferable to use, as the specific slope panel, a panel whose slope surface has a relatively longer length in the direction in which the product to be packaged 3 is moved.

[0156] <3> In the embodiment described above, the first panel 11 and the second panel 12 that correspond to the slope panel are each configured such that the slope guides (31 or 33) are formed on both sides of the slope surface (11a or 12a). However, the present disclosure does not exclude the possibility that the panels that constitute the slope panel do not include the slope guides that are formed on the slope surface side.

[0157] <4> The present disclosure is not limited to the embodiment given above, and encompasses various types of variations. For example, the embodiment given above has been described in detail for a better understanding of the present disclosure. Accordingly, the present disclosure does not necessarily include all constituent elements described above. The scope of the present disclosure is indicated by the appended claims, and all changes that come within the scope of the claims of the present application, as well as the meaning and range of equivalency of the claims, are intended to be embraced within the scope of the present disclosure.

Claims

1-20. (canceled)21. A packaging box for accommodating a product to be packaged having at least one caster, the packaging box comprising:a pallet that is placed on a support surface and forms a bottom portion of an accommodating space in which the product to be packaged is accommodated;a first panel that is disposed to face the pallet in a vertical direction and forms an upper portion of the accommodating space; anda second panel, a third panel, a fourth panel, and a fifth panel that surround the accommodating space from four directions and each form a side portion of the accommodating space,wherein a slope panel, which is composed of one or more of the first panel, the second panel, the third panel, the fourth panel, and the fifth panel that belong to a panel group, includes one or more leg portions that protrude toward the accommodating space and are formed at one or more positions on a back surface of the slope panel, the back surface being one of a pair of main surfaces of the slope panel that faces the accommodating space, andwhen the packaging box is in an unpacked state in which the panels belonging to the panel group have been removed, the slope panel is connected to the pallet directly or via another member in an orientation in which the leg portions of the slope panel are in contact with the support surface, so that a slope surface of the slope panel, the slope surface being a main surface opposite to the back surface, forms a downwardly inclined surface extending from a height of an upper surface of the pallet on which the product to be packaged is placed to a height of the support surface.

22. The packaging box according to claim 21,wherein a plurality of panels belonging to the panel group each correspond to the slope panel,each of the slope panels has a different protrusion length of the leg portion formed on the back surface of the slope panel,when the packaging box is in the unpacked state,a specific slope panel, which is the slope panel having the longest protrusion length of the leg portion among the slope panels, is connected directly to the pallet in an orientation in which the leg portions are in contact with the support surface, andthe slope panels other than the specific slope panel are connected to each other in an orientation in which the leg portions are in contact with the support surface, such that the slope panel having a relatively longer protrusion length of the leg portion is located closer to the pallet, whereby respective slope surfaces of a plurality of the slope panels including the specific slope panel are connected to form the downwardly inclined surface.

23. The packaging box according to claim 22,wherein, among the plurality of slope panels, at least the specific slope panel has a plurality of the leg portions having different protrusion lengths formed on the back surface, andin the unpacked state, the slope panel having the plurality of the leg portions is connected to the pallet in an orientation such that the leg portion having a relatively longer protrusion length is located closer to the pallet.

24. The packaging box according to claim 23, further comprising a connecting member disposed in the accommodating space,wherein, in the unpacked state, the connecting member is disposed on the back surface of the slope panel at a location where a pair of the slope panels is connected, and the pair of the slope panels is connected via the connecting member.

25. The packaging box according to claim 21,wherein the product to be packaged includes an adjuster that protrudes downward from a surface on which the caster is mounted and whose protrusion length is adjustable, andthe packaging box further comprises:an adjuster base plate mounted on the pallet, on which the adjuster is brought into contact when the product to be packaged is accommodated in the accommodating space; anda caster base plate disposed in the accommodating space,wherein the pallet has a recessed region into which the caster base plate is insertable, andin the unpacked state, with the caster base plate inserted in the recessed region, the protrusion length of the adjuster is reduced so that the caster is brought into contact with the caster base plate, thereby enabling an upper surface of the caster base plate and an upper surface of the pallet to allow the product to be packaged to be transported by the caster.

26. The packaging box according to claim 21, further comprising a plurality of guide members disposed in the accommodating space,wherein, in the unpacked state, the guide members are fixed along at least one of outer edges of an upper surface of the pallet that extends in a direction parallel to a direction in which the slope panel is connected.

27. The packaging box according to claim 24,wherein the product to be packaged includes an adjuster that protrudes downward from a surface on which the caster is mounted and whose protrusion length is adjustable, andthe packaging box further comprises:an adjuster base plate mounted on the pallet on which the adjuster is brought into contact when the product to be packaged is accommodated in the accommodating space;a caster base plate disposed in the accommodating space; andan accessory storage box disposed outside the product to be packaged in the accommodating space,wherein the pallet has a recessed region into which the caster base plate is insertable,in the unpacked state, with the caster base plate inserted in the recessed region, the protrusion length of the adjuster is reduced so that the caster is brought into contact with the caster base plate, thereby enabling an upper surface of the caster base plate and an upper surface of the pallet to allow the product to be packaged to be transported by the caster,the accessory storage box stores the connecting member and the caster base plate, andwith one or more of the panels belonging to the panel group removed, the accessory storage box is removable to outside the accommodating space.

28. The packaging box according to claim 27, further comprising a plurality of guide members disposed in the accommodating space,wherein, in the unpacked state, the guide members are fixed along at least one outer edge of an upper surface of the pallet that extends in a direction parallel to a direction in which the slope panel is connected.

29. The packaging box according to claim 21,wherein the slope panel includes a slope guide that extends, as a structure protruding outward, along a pair of opposing outer edges on the slope surface, andwhen the packaging box is in the unpacked state, the slope guide extends in a direction in which the slope panel is connected to the pallet.

30. The packaging box according to claim 22,wherein the downward inclined surface has an inclination angle of 5° or less.

31. The packaging box according to claim 22,wherein a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel is constituted by one panel belonging to the side panel group and the first panel, andamong the slope panels, the panel belonging to the side panel group constitutes the specific slope panel.

32. The packaging box according to claim 21,wherein the pallet and each of the panels belonging to the panel group are made of wood.

33. The packaging box according to claim 32,wherein, among the panels belonging to the panel group, a panel that does not correspond to the slope panel is a wooden member having a slatted-board configuration that places an outside of the accommodating space and an inside of the accommodating space in communication with each other.

34. The packaging box according to claim 23,wherein a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel is constituted by one panel belonging to the side panel group and the first panel, andamong the slope panels, the panel belonging to the side panel group constitutes the specific slope panel.

35. The packaging box according to claim 24,wherein a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel is constituted by one panel belonging to the side panel group and the first panel, andamong the slope panels, the panel belonging to the side panel group constitutes the specific slope panel.

36. The packaging box according to claim 27,wherein a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel is constituted by one panel belonging to the side panel group and the first panel, andamong the slope panels, the panel belonging to the side panel group constitutes the specific slope panel.

37. The packaging box according to claim 28,wherein a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel is constituted by one panel belonging to the side panel group and the first panel, andamong the slope panels, the panel belonging to the side panel group constitutes the specific slope panel.

38. The packaging box according to claim 30,wherein a side panel group consists of the second panel, the third panel, the fourth panel, and the fifth panel, and the slope panel is constituted by one panel belonging to the side panel group and the first panel, andamong the slope panels, the panel belonging to the side panel group constitutes the specific slope panel.

39. The packaging box according to claim 22,wherein the pallet and each of the panels belonging to the panel group are made of wood.

40. The packaging box according to claim 23,wherein the pallet and each of the panels belonging to the panel group are made of wood.

Images