Packaging material

Abstract

The present application provides a packing material capable of easily performing packing work. The packing material (1) has an inner packing material (10) and an outer packing material (20). The inner packing material (10) has a bottom plate portion (31) and a side plate portion (42). The bottom plate portion (31) places a packed object (G). The side plate portion (42) stands from the bottom plate portion (31) and covers a side surface of the packed object (G). The outer packing material (30) has a peripheral wall portion (80) and a flap portion (90). The peripheral wall portion (80) is open upward and downward. The flap portion (90) closes the upper end opening of the peripheral wall portion (80) by extending from the upper end of the peripheral wall portion (80) and being bent inward. The inner packing material (10) has a hanging portion (43). The hanging portion (43) is provided at the upper end portion of the side plate portion (42) and is hooked to the flap portion (90).

Description

Technical Field

[0001] This disclosure pertains to packaging materials. Background Technology

[0002] Patent Document 1 discloses a conventional packing material. This packing material includes a base tray and an outer packaging material. The base tray holds the item to be packed. Front and rear sidewalls are provided on the base tray. The front and rear sidewalls cover the sides of the item to be packed. The outer packaging material has front, rear, left, and right sidewalls and a top cover provided at the upper end of these sidewalls. The outer packaging material has an insertion portion at the middle of the vertical direction of the sidewalls. Ears provided on the front and rear sidewalls of the base tray are inserted into the insertion portions. This packing material connects the base tray and the outer packaging material by inserting the ears into and attaching them to the insertion portions provided on the front and rear sidewalls of the outer packaging material.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-144142 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the case of Patent Document 1, the insertion part is located in the middle of the vertical direction of the front and rear side walls of the outer material. Therefore, when inserting the ear into the insertion part, it is necessary to insert the hand from the upper opening of the outer material into the middle of the vertical direction. This is a cumbersome task.

[0008] This disclosure was made in view of the above-mentioned existing situation, and its purpose is to provide a packing material that enables easy packing operations.

[0009] Technical solutions for solving the problem

[0010] To address the aforementioned problems, one embodiment of the packaging material disclosed herein comprises: an inner packaging material having a base plate portion for placing the packaged item and a side plate portion that rises from the base plate portion and covers the side of the packaged item; and an outer packaging material having an upper and lower open peripheral wall portion and a folded wing portion extending from the upper end of the peripheral wall portion and bending inward to close the upper opening of the peripheral wall portion, wherein the outer packaging material covers the packaged item from above, and the inner packaging material has a suspension portion disposed at the upper end of the side plate portion and hooked to the folded wing portion. Attached Figure Description

[0011] Figure 1 This is a perspective view of the packaging materials for Embodiment 1.

[0012] Figure 2This is a perspective view showing the inner packaging material of Embodiment 1.

[0013] Figure 3 This is an exploded perspective view showing the inner packaging material of Embodiment 1.

[0014] Figure 4 This is a diagram showing the unfolded shape of the suspension pad according to Embodiment 1.

[0015] Figure 5 This is a perspective view of the outer packaging material in Embodiment 1.

[0016] Figure 6 This is a perspective view used to illustrate the peripheral wall portion, the folding wing portion, and the suspension portion of Embodiment 1.

[0017] Figure 7 This is a diagram illustrating the packing sequence of the packing materials in Embodiment 1, showing the side panel portion extending in the front-rear direction of the bottom pallet.

[0018] Figure 8 This is a diagram illustrating the packing sequence of the packing materials in Embodiment 1, showing the state in which the side panel is bent.

[0019] Figure 9 yes Figure 8 The main part is enlarged and shown by cutting out a section.

[0020] Figure 10 This is a diagram illustrating the packing sequence of the packing materials in Embodiment 1, showing the state of inserting the support plate between the bottom tray and the inner tray.

[0021] Figure 11 This is a diagram used to illustrate the packing sequence of the packing materials in Embodiment 1, showing the state of the positioning side plate relative to the support plate.

[0022] Figure 12 This is a diagram used to illustrate the packing sequence of the packing materials in Embodiment 1, showing the state in which the hook is hooked onto the side plate.

[0023] Figure 13 yes Figure 12 Enlarged view of the main parts.

[0024] Figure 14 This is a diagram used to illustrate the packing sequence of the packing materials in Embodiment 1, showing the state where the outer packing material is placed on top of the inner packing material.

[0025] Figure 15 This is a diagram used to illustrate the packing sequence of the packing materials in Embodiment 1, showing the state of bending the front and rear folding parts.

[0026] Explanation of reference numerals in the attached figures

[0027] 1… Packing material, 10… Inner packing material, 20… Outer packing material, 31… Bottom plate, 42… Side plate, 42A… Bending section, 42B… Cutting section (positioning section), 43… Hanging section, 43A… Upper end of hanging section, 43D… Hook section, 53… Temporary fixing section, 60… Front and rear protective pads (second side plate), 60A… Hole (positioning section), 70… Left and right protective pads (second side plate), 80… Peripheral wall, 90… Folding section (91… Front and rear pair of folding wings, 92… Left and right pair of folding wings), 91A… Opening, G… Packed item Detailed Implementation

[0028] <Implementation Method 1>

[0029] like Figure 1 As shown, in Embodiment 1, packing material 1 is used to pack the item G. The item G is a weighted object such as the main body of a ceramic toilet. Packing material 1 is composed of multiple parts formed by assembling corrugated cardboard sheets, etc. Packing material 1 is used in... Figure 1 The packaged item G shown is rectangular in shape when fully packaged. No resin-based components such as PP (polypropylene) strapping are used; only non-resin-based components such as corrugated cardboard packaging material 1 are used to package the item G.

[0030] In the following description, the front-back, left-right, and up-down directions of the packing material 1 are based on the orientation of the packing material 1 placed on a horizontal plane while the packaged item G is being packed. Regarding the front-back and left-right directions of the packing material 1, the long side and short side of the packing material 1 as viewed from above are respectively the front-back and left-right directions. The X-axis, Y-axis, and Z-axis shown in each figure represent the front-back, left-right, and up-down directions, respectively. On the X-axis, Y-axis, and Z-axis, the positive directions of each axis are front, left, and up, respectively.

[0031] like Figure 1 As shown, the packaging material 1 includes an inner packaging material 10 and an outer packaging material 20. The inner packaging material 10 and the outer packaging material 20 are combined with each other in such a way that the outer packaging material 20 covers the inner packaging material 10 from above.

[0032] like Figure 2 and Figure 3As shown, the inner packaging material 10 has a base tray 30, a suspension pad 40, an inner tray 50, a pair of front and rear protective pads 60, and a pair of left and right protective pads 70 in its component structure. The base tray 30 has a base plate portion 31 and upright portions 32. The base plate portion 31 holds the packaged item G. The base plate portion 31 is formed as a long rectangle in the front-to-back direction. The upright portions 32 rise upward from the four periphery of the base plate portion 31. The base tray 30 is formed as a whole into a tray shape by these base plate portions 31 and the surrounding upright portions 32.

[0033] like Figure 3 As shown, a pair of suspension pads 40 are provided. The pair of suspension pads 40 are two parts of the same shape. The pair of suspension pads 40 are connected in the front-to-back direction. The pair of suspension pads 40 are attached to the lower surface of the base tray 30 by adhesive bonding. The portion of the pair of suspension pads 40 extending from the front and rear ends of the base tray 30 is bent upwards and erected.

[0034] like Figure 4 As shown, the suspension pad 40 has a lower plate portion 41, a side plate portion 42, and a suspension portion 43. Figure 4 The dotted lines shown in the unfolded diagram represent creases. The hanging pad 40 can be bent at each crease.

[0035] The lower plate portion 41 is attached to the lower surface of the base plate portion 31 constituting the base tray 30 by adhesive or the like. A protrusion / recess 41A is formed on the lower plate portion 41. The protrusion / recess 41A engages with the protrusion / recess 41A on the other side of a pair of suspension pads 40. The pair of suspension pads 40 are connected in the front-to-back direction by engaging the protrusion / recess 41A with each other.

[0036] Side panel 42 rises from the front-rear end of bottom tray 30, covering the side of the packaged item G. Side panel 42 extends upward by bending relative to bottom panel 41 at the crease between it and bottom panel 41. (As...) Figure 4 As shown, the side panel portion 42 has a bending portion 42A, a cut-out portion 42B, and a handle hole 42C. The bending portion 42A is located in the middle of the side panel portion 42 in the vertical direction. The side panel portion 42 can be bent at this bending portion 42A. By bending at the bending portion 42A, the side panel portion 42 can be bent into a bent state in which the upper end portion is bent inward relative to the lower end portion. In this embodiment, two vertically arranged creases are formed on the bending portion 42A.

[0037] The cut-out portion 42B is inserted into the hole 60A (described later) on the front and rear protective pads 60 by cutting inwards. The cut-out portion 42B and the hole 60A are examples of positioning portions of this disclosure. Figure 4As shown, the cut-out portion 42B is cut at an H-shaped entry point that crosses the crease of the bending portion 42A in the vertical direction. Two handle holes 42C are formed, arranged left and right, at the upper end of the side panel portion 42. The handle holes 42C are formed at positions corresponding to the handle holes 60B (described later) of the front and rear protective pads 60 and the handle holes 80A (described later) of the outer packaging material 20.

[0038] The suspension part 43 is hooked onto the folding wing part 90, described later, within the outer packaging material 20. For example... Figure 4 As shown, a suspension part 43 is provided at the upper end of the side plate part 42. A pair of suspension parts 43 are provided at the left and right ends of the side plate part 42. The left and right pairs of suspension parts 43 are symmetrical to each other. In the unfolded state of the suspension pad 40, the suspension parts 43 extend outwards in the left and right directions from the left and right ends of the upper end of the side plate part 42. Each suspension part 43 is bent relative to the side plate part 42 at the crease between it and the side plate part 42, thus extending in the front-back direction.

[0039] The suspension portion 43 has an upper end portion 43A and a lower end portion 43B. The upper end portion 43A extends above the upper end of the side plate portion 42. The lower end portion 43B is continuous with the lower end of the upper end portion 43A at its upper end and continuous with the left and right ends of the side plate portion 42 in the front-rear direction. The suspension portion 43 can be bent at a crease formed between the upper end portion 43A and the lower end portion 43B that is parallel to the horizontal direction.

[0040] like Figure 4 As shown, the suspension part 43 has a notch 43C and a hook part 43D. The notch 43C is formed on the side of the upper end 43A of the suspension part 43. The notch 43C is formed in the shape of a V-shaped recess on the side of the suspension part 43. The notch 43C can be temporarily fixed to the temporary fixing part 53 of the inner tray 50, which will be described later.

[0041] The hook portion 43D is the front and rear ends of the upper end portion 43A of the suspension portion 43, and is formed on the end opposite to the end portion 42. The hook portion 43D is formed in the shape of a hook that opens downwards. In the inner packaging material 10 before being covered by the outer packaging material 20, the hook portion 43D hooks onto the upper edge of the left and right protective pads 70 (see reference). Figure 2 Therefore, with regard to the inner packaging material 10, the suspension part 43 is held in a state where it is bent relative to the side panel part 42 and extends in the front-rear direction.

[0042] The inner tray 50 is embedded within the bottom tray 30. In this embodiment, the packaged item G is placed on the bottom plate portion 31 of the bottom tray 30 via the inner tray 50. Figure 3As shown, the inner tray 50 has an inner bottom plate portion 51, inner upright portions 52, and temporary fixing portions 53. The inner bottom plate portion 51 overlaps the bottom plate portion 31 of the bottom tray 30 from above. The inner upright portions 52 rise upwards from the front, rear, left, and right peripheries of the inner bottom plate portion 51, respectively. Each inner upright portion 52 is arranged to overlap the inner peripheral surface of the upright portion 32 in the bottom tray 30. When the inner tray 50 is embedded in the bottom tray 30, front and rear protective pads 60 and left and right protective pads 70 are inserted between each inner upright portion 52 and the upright portion 32 of the bottom tray 30. When the inner tray 50 is embedded in the bottom tray 30, a rectangular space is formed at the four corners of the inner tray 50 between it and the upright portion 32 of the bottom tray 30. The support pillars 61, which will be described later, are inserted into this space.

[0043] like Figure 3 As shown, the temporary fixing part 53 extends outward in a convex shape from the upper end of the left and right inner upright parts 52. The temporary fixing part 53 temporarily fixes the notch 43C of the suspension part 43. Specifically, the temporary fixing part 53 hooks the notch 43C by inserting the suspension part 43 into the gap between the upright part 32 and the inner upright part 52 on the side plate part 42 in a bent state. Thus, the temporary fixing part 53 maintains the bent state of the side plate part 42. By applying a force in the pressing direction to the suspension part 43, the hook of the temporary fixing part 53 on the notch 43C can be easily removed. A crease (not shown) is added to the base end of the temporary fixing part 53. By applying an upward pulling force to the suspension part 43, the temporary fixing part 53 bends at the crease. Thus, the hook of the temporary fixing part 53 on the notch 43C can be easily removed. When the suspension part 43 is pressed in or pulled out, the hook of the temporary fixing part 53 on the notch part 43C can be easily removed, thus serving as a proper temporary fixation.

[0044] The front and rear protective pads 60 and the left and right protective pads 70 are examples of the second side panel portions of the present invention. That is, the protective pads 60 and 70 are disposed between the front and rear pair of side panel portions 42 of the inner packaging material 10. The protective pads 60 and 70 cover the sides of the packaged item G and protect the packaged item G. The protective pads 60 and 70 also function as reinforcing materials to withstand the compressive force of the packaging material 1 in the vertical direction. The front and rear protective pads 60 and the left and right protective pads 70 extend in mutually intersecting directions. The protective pads 60 and 70 also function as reinforcing materials against forces acting horizontally in the front, rear, left, and right directions.

[0045] like Figure 3As shown, the front and rear protective pads 60 have a pair of left and right support pillars 61 and a connecting plate 62 connecting these support pillars 61. The pair of support pillars 61 are formed into columnar shapes extending in the vertical direction. The pair of support pillars 61 are formed into prismatic shapes by repeatedly bending the left and right end edges of the connecting plate 62 inwards. The pair of support pillars 61 are respectively inserted into the inner side of the bottom tray 30 and into the paired spaces in the four corners of the inner tray 50 in the left and right direction. The connecting plate 62 is inserted into the gap between the front and rear upright portions 32 of the bottom tray 30 and the front and rear inner upright portions 52 of the inner tray 50. Figure 2 As shown, the height of the upper end of the front and rear protective pads 60, which are inserted into the gap between the bottom tray 30 and the inner tray 50 in the assembled state, is the same as the height of the upper end of the side panel 42.

[0046] The connecting plate 62 has a hole 60A and a handle hole 60B. The hole 60A is fitted with a cutout 42B from the side plate portion 42. The hole 60A, corresponding to the position of the cutout 42B from the side plate portion 42, is formed as a square hole in the middle of the connecting plate 62 in the vertical direction. The side plate portion 42 and the protective pad 60 are positioned so that they overlap. That is, the hole 60A and the cutout 42B together function as positioning parts of the present invention. The handle hole 60B is formed corresponding to the position of the handle hole 42C in the side plate portion 42. Two handle holes 60B are formed in a left-right arrangement at the upper end of each connecting plate 62.

[0047] like Figure 3 As shown, the left and right protective pads 70 are flat sheets of corrugated cardboard forming a rectangular shape. The protective pads 70 are inserted into the gaps between the left and right upright portions 32 of the bottom tray 30 and the left and right inner upright portions 52 of the inner tray 50. Figure 2 As shown, in the assembled state where the protective pad 60 is inserted into the gap between the bottom tray 30 and the inner tray 50, the upper end of the front and rear protective pads 70 is at the same height as the upper end of the side panel 42. Before the inner packaging material 10 is covered by the outer packaging material 20, the hook portion 43D of the suspension portion 43 is hooked onto the protective pad 70.

[0048] The outer packaging material 20 covers the packaged item G from above. With the packaged item G packaged, the outer packaging material 20 forms a box shape with an opening towards the bottom. (Example...) Figure 5As shown, the outer packaging material 20 has a peripheral wall portion 80 and a folding wing portion 90. The peripheral wall portion 80 is formed into a square tube shape with openings at the top and bottom. The peripheral wall portion 80 is a shape in which a pair of front and rear peripheral walls 81 and a pair of left and right peripheral walls 82 are connected in the circumferential direction. Thus, the peripheral wall portion 80 forms a rectangular shape when viewed from above. The peripheral wall portion 80 has handle holes 80A formed. The handle holes 80A are formed on the front and rear peripheral walls 81 respectively. The handle holes 80A are formed at the positions corresponding to the handle holes 42C of the side plate portion 42. Two handle holes 80A are formed on the left and right sides at the upper end of each peripheral wall 81.

[0049] The folding wing portion 90 extends from the upper end of the peripheral wall portion 80. The folding wing portion 90 closes the upper opening of the peripheral wall portion 80 by bending inwards. The folding wing portion 90 has a pair of front and rear folding wings 91 and a pair of left and right folding wings 92. Each folding wing 91, 92 extends from the upper end of each of the four peripheral walls 81, 82 of the peripheral wall portion 80. The folding wing portion 90 is bent in a configuration where the front and rear folding wings 91 are arranged on the inner side and the left and right folding wings 92 are arranged on the outer side. Figure 1 As shown, the front and rear flaps 91 are hooked onto the suspension part 43 in a bent state. The left and right flaps 92 cover the suspension part 43 hooked onto the front and rear flaps 91 from above.

[0050] like Figure 5 and Figure 6 As shown, openings 91A are formed on the front and rear flaps 91. The openings 91A allow the suspension portion 43 to pass through. In this embodiment, the openings 91A are formed by cutting the left and right ends of the front end side of the front and rear flaps 91 into a shape narrower than the base end side. The openings 91A extend along the entire length of the flaps 91, cutting from the front end of the flaps 91 to near the crease between the flaps 91 and the peripheral wall 81.

[0051] This describes how to use the packing material 1 with the above-described structure to pack the item G. When packing the item G using the packing material 1, the item G is placed on the bottom tray 30. At this time, as... Figure 7 As shown, if the side panel 42 extends towards the front and rear of the bottom tray 30, space must be left, which is not ideal for production line processing. In contrast, as... Figure 8 As shown, by bending the side plate portion 42, the packing material 1 can suppress the expansion of the side plate portion 42 and adopt a compact shape. As a result, the packing material 1 has good workability during packing.

[0052] When the side panel 42 is in a bent state, the upper end of the side panel 42 is bent inward, and the hanging part 43 is inserted into the gap between the bottom tray 30 and the inner tray 50. At this time, as Figure 8As shown, the notch 43C of the suspension part 43 is hooked onto the temporary fixing part 53 provided on the inner tray 50. The side panel part 42 in the bent state is bent at the bending part 42A. In this embodiment, since two creases are formed at the bending part 42A, the bending angle of each crease can be reduced compared to the case where there is only one crease. As a result, the elastic rebound force of the corrugated paper generated in the bent part is dispersed. As a result, even the weaker holding force based on the hook of the temporary fixing part 53 and the notch 43C will not be released, and the side panel part 42 can be well maintained in the bent state. The height of the side panel part 42 in the bent state is suppressed compared to the upright state from the bottom tray 30. In this respect, the ease of packaging operation is improved for the packaging material 1.

[0053] After the packaged item G is placed on the bottom tray 30, the hook between the temporary fixing part 53 and the notch 43C is released, and the hanging part 43 is pulled out from the gap between the bottom tray 30 and the inner tray 50. This exposes both ends of the bottom tray 30 in the front-rear direction, which were previously covered by the upper portion of the bent side panel 42. After exposing both ends of the bottom tray 30 in the front-rear direction, a pair of protective pads 60, serving as a second side panel, are placed between the front and rear pair of side panel parts 42. Specifically, as... Figure 10 As shown, the protective pad 60 is inserted into both ends of the bottom tray 30 in the front-rear direction, that is, between the upright portion 32 of the bottom tray 30 and the inner upright portion 52 of the inner tray 50. Figure 11 As shown, the side plate portion 42 is raised towards the inserted protective pad 60, and the cut portion 42B is inserted into the hole portion 60A of the protective pad 60. Thus, the side plate portion 42 and the protective pad 60 are positioned in an overlapping configuration. In this state, the side plate portion 42 is held upright and will not fall down due to the action of the cut portion 42B inserted into the hole portion 60A.

[0054] A pair of left and right protective pads 70, serving as a second side panel, are disposed between the front and rear pair of side panel portions 42. Specifically, as... Figure 11 As shown, the protective pad 70 is inserted into both ends of the bottom tray 30 in the left-right direction, that is, between the upright portion 32 of the bottom tray 30 and the inner upright portion 52 of the inner tray 50. The arrangement of the protective pad 70 between the pair of side plate portions 42 can also be at the same time as the arrangement of the protective pad 60 between the pair of side plate portions 42, that is, before the cut-out portion 42B of the side plate portion 42 is inserted into the hole portion 60A. The protective pads 60 and 70 function as components to ensure strength.

[0055] like Figure 12As shown, the hook portion 43D of the suspension portion 43 is hooked onto the protective pad 70, which serves as the second side panel. Thus, the suspension portion 43 is bent at the crease between itself and the side panel 42, and is held in a state approximately orthogonal to the side panel 42. By hooking the hook portion 43D onto the protective pad 70, the side panel 42 is held more reliably in the upright state. The suspension portion 43 is arranged to extend along the front-back direction at the four corners of the upper end of the inner packaging material 10. In this embodiment, as... Figure 13 As shown, the hook portion 43D is formed in the shape of a hook that opens downwards. Therefore, the hook portion 43D can be hooked onto the upper edge of the protective pad 70 with simple operation.

[0056] like Figure 14 As shown, with the outer packaging material 20 hooked onto the protective pad 70, it is placed on top of the inner packaging material 10. At this time, the inner packaging material 10 is hooked onto the protective pad 70 via the hook portion 43D and is held in a state where the suspension portion 43 is bent relative to the side plate portion 42 and extends in the front-rear direction. Therefore, the situation where the outer packaging material 20 hooks onto the suspension portion 43 when it is placed on top of the inner packaging material 10 is suppressed, and it can be easily placed on top of the inner packaging material 10.

[0057] When the outer packaging material 20 is placed over the inner packaging material 10, the hanging portion 43 functions as a guide to guide the lower end of the outer packaging material 20. As described above, the hanging portion 43 protrudes upwards from the upper ends of the side panel portion 42 and the protective pads 60 and 70 on the front, back, left, and right sides. Therefore, when the outer packaging material 20 is placed over the inner packaging material 10, the lower end of the outer packaging material 20 first contacts the hanging portion 43. By allowing the upper ends 43A of each hanging portion 43 to enter the inside of the outer packaging material 20, the inner circumferential surface of the outer packaging material 20 is guided downwards along each hanging portion 43, making it easy to insert the upper ends of the side panel portion 42 and the protective pads 60 and 70 on the front, back, left, and right sides into the outer packaging material 20.

[0058] The outer packaging material 20 covers the entire inner packaging material 10, causing the lower end of the peripheral wall portion 80 to reliably fall onto the lower ends of the bottom pallet 30 and the side panel portion 42. With the lower end of the peripheral wall portion 80 reliably fallen onto the lower ends of the bottom pallet 30 and the side panel portion, as... Figure 14 As shown, the suspension portion 43 is in a state where the upper end portion 43A protrudes upward from the upper edge of the peripheral wall portion 80 in the outer packaging material 20.

[0059] exist Figure 14With the outer packaging material 20 covering the inner packaging material 10, the handle hole 80A formed on the peripheral wall portion 80 of the outer packaging material 20 is aligned with the handle hole 42C in the side panel portion 42 and the handle hole 60B in the protective pad 60. When the packaging material 1 is lifted, a hand is inserted into the handle holes 42C, 60B, and 80A formed on these three components, and the hand hooks onto the side panel portion 42, the protective pad 60, and the peripheral wall portion 80. Therefore, the load when the packaging material 1 is lifted is distributed across the three components, suppressing breakage.

[0060] like Figure 15 As shown, the front and rear pairs of flaps 91 and 92 of the two pairs of flaps 90 in the flap section 90 are bent inward. An opening 91A is formed on the flap 91. Therefore, when bending the flap 91, contact with the suspension section 43 is avoided. The suspension section 43 is appropriately positioned with the flaps 91 straddling the bent state by means of the operation of bending the flaps 91 inward through the opening 91A.

[0061] After bending the front and rear pairs of flaps 91 inwards, bend the left and right pairs of flaps 92 inwards (see reference). Figure 1 The bent flap 92 overlaps the upper side of the front and rear pair of flaps 91. When the flap 92 is bent inward, the suspension part 43 is pressed by the flap 92 and bends together with the flap 92. The bent suspension part 43 hooks onto the upper surface of the front and rear pair of flaps 91 at its upper end 43A. Therefore, as a whole, the inner packaging material 10 is suspended on the outer packaging material 20.

[0062] With the left and right flaps 92 bent, the hanging part 43 is pressed down by the lower surface of the flaps 92, forming a shape where it is clamped between the flaps 91 and 92. Thus, the hanging part 43 is securely held between the flaps 91 and 92. In this state, the packaging material 1 is connected to the inner and outer packaging materials 10 and 20. To release the connection between these inner and outer packaging materials 10 and 20, it is necessary to lift the left and right flaps 92 and release the hook of the hanging part 43 onto the flaps 91. Therefore, by attaching adhesive tape such as kraft paper tape to the seams of the left and right flaps 92 and sealing the packaging material 1, improper opening can be prevented. That is, because the packaging material 1 cannot come into contact with the packaged item G without peeling off the sealing adhesive tape, by checking for any traces of peeling off the adhesive tape, it is possible to clearly determine whether it is opened or not.

[0063] As described above, the packaging material 1 of Embodiment 1 includes an inner packaging material 10 and an outer packaging material 20. The inner packaging material 10 has a bottom tray 30 with a bottom plate portion 31 and a hanging pad 40 with a side plate portion 42. The bottom plate portion 31 holds the item to be packaged G. The side plate portion 42 stands up from the bottom plate portion 31 and covers the side of the item to be packaged G. The outer packaging material 20 has a peripheral wall portion 80 and a folded wing portion 90. The peripheral wall portion 80 has openings at the top and bottom. The folded wing portion 90 extends from the upper end of the peripheral wall portion 80 and closes the upper opening of the peripheral wall portion 80 by bending inward. The inner packaging material 10 has a hanging portion 43. The hanging portion 43 is provided at the upper end of the side plate portion 42 and hooks onto the folded wing portion 90.

[0064] In this way, by hooking the suspension part 43 onto the folding part 90, the inner packaging material 10 and the outer packaging material 20 can be easily connected without the use of strapping components such as PP straps. Therefore, the packaging material 1 can be easily packaged.

[0065] In the packaging material 1, the folding portion 90 is provided with a pair of front and rear folding wings 91 and a pair of left and right folding wings 92. The suspension portion 43 is hooked onto the front and rear folding wings 91 in a bent state and is covered from above by the left and right folding wings 92 in a bent state. According to this structure, the packaging material 1 is in a form where the suspension portion 43 is held between the folding wings 91 and 92. Therefore, the suspension portion 43 is firmly held by the folding wings 90, and a firm connection between the inner packaging material 10 and the outer packaging material 20 can be easily achieved. According to the above structure, the packaging material 1 cannot be opened without lifting the left and right folding wings 92 covering the suspension portion 43 from above again. Therefore, by sealing the seams of the left and right folding wings 92 with adhesive tape, it is easy to determine whether the packaging material 1 has been opened.

[0066] In the packing material 1, openings 91A are formed on the front and rear flaps 91 for the suspension part 43 to pass through. Therefore, the packing material 1 can easily hook the suspension part 43 onto the flaps 91.

[0067] In the packing material 1, side panels 42 are provided in pairs at the front and rear ends of the bottom plate 31. The inner packing material 10 has protective pads 60 and 70, which are disposed between the paired side panels 42 as second side panels. Therefore, compared with the case where only side panels 42 are provided without protective pads 60 and 70, the strength can be improved.

[0068] In the packing material 1, the hanging part 43 has a hook part 43D. Before the inner packing material 10 is covered by the outer packing material 20, the hook part 43D is hooked onto the protective pad 70, which serves as the second side panel. Therefore, the packing material 1 can maintain the hanging part 43 with the hook part 43D hooked onto the protective pad 70. In this embodiment, the hooked state is such that the hanging part 43 is bent relative to the side panel 42, allowing the inner packing material 10 to be covered by the outer packing material 20 without being obstructed by the hanging part 43. Because the packing material 1 can maintain this state, it is easy to cover the inner packing material 10 with the outer packing material 20.

[0069] In the packaging material 1, the inner packaging material 10 has a cut-out portion 42B and a hole portion 60A serving as positioning portions. The cut-out portion 42B and the hole portion 60A position one of the paired side plate portions 42 and the protective pad 60 serving as the second side plate portion in an overlapping configuration. Therefore, the packaging material 1 can easily overlap the side plate portions 42 and the protective pad 60 in a positioned configuration.

[0070] In the packaging material 1, side panel portions 42 are provided in pairs at the front and rear ends of the bottom plate portion 31, and hanging portions 43 extend upward from the left and right ends of the side panel portions 42 that form these pairs. Therefore, the hanging portions 43 can be easily provided in the packaging material 1.

[0071] In the packing material 1, the side panel 42 has a bending portion 42A that can be bent into a bent state such that the upper end portion is bent inward relative to the lower end portion. The inner packing material 10 has a temporary fixing portion 53 that temporarily fixes the side panel 42 in a bent state. In this way, the packing material 1 can bend the side panel 42 into a bent state at the bending portion 42A, so the space required for packing operations can be reduced compared to the case where the side panel 42 is not bent. Because the packing material 1 can temporarily fix the side panel 42 in a bent state by the temporary fixing portion 53, the bent state of the side panel 42 can be reliably maintained.

[0072] In the packaging material 1, two creases are formed at the bending portion 42A. Therefore, compared with the case of one crease, the bending portion 42A can disperse the rebound force of the side plate portion 42 in the direction of restoration when it is in a bent state, and can easily maintain the bent state of the side plate portion 42.

[0073] This disclosure is not limited to the embodiments described above and the accompanying drawings. For example, the following embodiments are also included within the technical scope of this disclosure.

[0074] The shape, size, and component structure of the inner and outer packaging materials are not limited to the structures exemplified in the above embodiments. For example, the inner packaging material may be formed integrally with the base plate and side plate as a single component. The base plate may indirectly support the packaged item via other components as described in the above embodiments, or it may directly support the packaged item.

[0075] The structure, configuration, shape, number, and method of hooking the suspension part to the folding wing part are not limited to the above embodiments. For example, the suspension part may also extend upward from the upper end of the side plate part. The suspension part does not necessarily have a hook part or a notch part for temporary fixation to the temporary fixing part.

[0076] It is not necessary for the folding wing portion to have an opening. The suspension portion may also be in the form of a hook on the outer edge of the folding wing portion. When an opening is formed on the folding wing portion, there are no particular restrictions on its shape, size, etc., as long as the opening is formed on the folding wing portion and allows the suspension portion to pass through. The opening is not limited to the notch-shaped opening exemplified in the above embodiment; for example, it may be a closed opening such as a hole or slit.

[0077] The inner packaging material does not necessarily have a second side panel. When the inner packaging material does have a second side panel, its shape, structure, number, etc., are not limited to the above-described embodiments.

[0078] The inner packaging material does not necessarily have a positioning part. If the inner packaging material does have a positioning part, its structure is not limited to the structure with a cut-out part and a hole shown in the above embodiments.

[0079] The side panel does not necessarily have a bend. If the side panel has a bend with creases, the number of creases can be one or more.

Claims

1. A packaging material for packaging a toilet body, and comprising: The inner packaging material has a base plate portion for placing the packaged item and a side plate portion that rises from the base plate portion and covers the side of the packaged item; The outer packaging material has upper and lower open peripheral walls and folded wings extending from the upper end of the peripheral walls and bending inward to close the upper opening of the peripheral walls. The outer packaging material covers the packaged item from above. The inner packing material has a suspension portion located at the upper end of the side panel and hooked onto the folding wing. The folding wing section has two pairs: one pair at the front and one pair on the left and one pair on the right. The suspension part is hooked to the upper surface of the pair of front and rear folding wings in a bent state, and the left and right folding wings in a bent state cover from above.

2. The packaging material according to claim 1, wherein, The front and rear folding sections have openings for the suspension section to pass through.

3. The packaging material according to claim 1, wherein, The side plate portion is a first side plate portion provided in pairs at least one of the front and rear ends and the left and right ends of the base plate portion. The inner packaging material has a second side panel portion disposed between the paired first side panel portions.

4. The packaging material according to claim 3, wherein, The suspension part has a hook portion that is hooked onto the second side plate before the inner packaging material is covered by the outer packaging material.

5. The packaging material according to any one of claims 3 to 4, wherein, The inner packaging material has a positioning part that positions one of the paired first side panel portions and the second side panel portion in an overlapping configuration.

6. The packaging material according to any one of claims 1 to 4, wherein, The side plates are provided in pairs at the front and rear ends of the base plate. The suspension portion extends upward from the left and right ends of the paired side plates.

7. The packaging material according to any one of claims 1 to 4, wherein, The side panel has a bent portion that can be bent into a bent state such that the upper end portion bends inward relative to the lower end portion. The inner packaging material has a temporary fixing part that temporarily fixes the side plate portion in the bent state.

8. The packaging material according to claim 7, wherein, Two creases are formed at the bend.

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