Packing member

Abstract

To provide a packing member having a new structure to suppress deformation generated in a peripheral edge part of an object component at the time of storage.SOLUTION: A packing member 10 is constituted by including a box body 20 for storing an object component 50 provided with peripheral edge parts 52, and buffers 30 which are arranged at a plurality of positions along side plates 21b of the box body 20 and are brought into contact with the peripheral edge parts 52. The buffers 30 contain first buffers 31 brought into contact with the peripheral edge parts 52 from below and second buffers 32 brought into contact with the peripheral edge parts from above. The second buffers 32 have lower rigidity than the first buffers 31.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to packaging members. [Background technology]

[0002] Conventionally, target parts such as decorative panels that constitute air conditioners (for example, cassette-type indoor units) are packaged in a packaging material that combines a box body and a cushioning body that is placed inside the box body (see Patent Document 1). The packaging material disclosed in Patent Document 1 is used to package rectangular target parts, and includes a cushioning body that protects the corners of the target parts and a cushioning body that protects the peripheral edges. The target parts are stored, transported, etc., in a state packaged in the packaging material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 3-32073 Summary of the Invention [Problem to be solved by the invention]

[0004] The target parts housed in the packaging material are generally stored in a stacked state. In this case, the weight of the other target parts acts on the target parts during storage via the packaging material. For this reason, the target parts housed in the packaging material may be deformed at their periphery due to the weight (load) acting on them during storage.

[0005] The present disclosure aims to provide a packaging member having a novel structure and suppressing deformation that occurs on the peripheral edges of target parts during storage. [Means for solving the problem]

[0006] (1) A packaging member disclosed herein includes a box body that stores a target part having a peripheral portion, and cushioning bodies that are arranged at multiple positions along a side panel of the box body and contact the peripheral portion, the cushioning bodies including a first cushioning body that contacts the peripheral portion from below and a second cushioning body that contacts the peripheral portion from above, the second cushioning body having a lower rigidity than the first cushioning body.

[0007] In the packaging member of the present disclosure, when multiple target parts housed in the packaging member are stacked and stored and the weight of the other target parts acts on the peripheral portion, the second buffer body of the packaging member of the present disclosure is more likely to deform than the first buffer body. The packaging member of the present disclosure can control the load acting on the peripheral portion by adjusting the amount of deformation of the second buffer body in the length direction. As a result, the packaging member of the present disclosure can suppress deformation occurring on the peripheral portion of the target parts during storage.

[0008] (2) In the packaging material of (1) of the present disclosure, it is preferable that the target part has a rectangular shape having corners located at the four corners and the peripheral portion connecting the corners, the box has a rectangular shape in which the rectangular target part is stored, and the first buffer body and the second buffer body contact the peripheral portion in an area including the center of the side of the peripheral portion.

[0009] The packaging member having the above-described configuration can suppress deformation of a rectangular target part in a region including the center of the side of the peripheral portion during storage.

[0010] (3) In the packaging material of (1) or (2) of the present disclosure, it is preferable that the second buffer body has a lower rigidity at a central portion in a length direction of the second buffer body than at an end portion in the length direction.

[0011] The packaging member of the present disclosure having the above configuration can change the amount of deformation of the second buffer body at the center and end in the length direction. This makes it possible to make the load acting on the peripheral portion in contact with the center of the second buffer body smaller than the load acting on the peripheral portion in contact with the end of the second buffer body. The packaging member of the present disclosure can suppress deformation occurring in the region including the center of the side of the peripheral portion during storage.

[0012] (4) In the packaging material according to (3) of the present disclosure, it is preferable that the second buffer body has a rigidity that increases stepwise from the central portion toward the end portion.

[0013] The packaging member of the present disclosure having the above configuration can change the amount of deformation of the second buffer body stepwise from the center to the end in the length direction. This makes it possible to make the load acting on the peripheral portion in contact with the center of the second buffer body smaller than the load acting on the peripheral portion in contact with the end of the second buffer body. The packaging member of the present disclosure can easily suppress deformation occurring in the region including the center of the side of the peripheral portion during storage.

[0014] (5) In the packaging material of any one of the aspects (1) to (4) of the present disclosure, it is preferable that the target part has an opening in the peripheral portion, and the first buffer body and the second buffer body contact the peripheral portion outside the opening.

[0015] The packaging material according to the present disclosure can suppress deformation of the peripheral portion of a target part having an opening, the peripheral portion being easily deformed during storage, in a region including the center of the side of the target part having an opening.

[0016] (6) In the packaging material of any of the aspects (1) to (5) of the present disclosure, it is preferable that the second cushioning body includes a first portion formed by cutting out a part of the material constituting the second cushioning body, or a second portion having a slit formed along the length of the second cushioning body, or a third portion having a lead line formed along the length of the second cushioning body, or a fourth portion having a perforation blade formed along the length of the second cushioning body, or a fifth portion having a line formed along the length of the second cushioning body.

[0017] The packaging member of the present disclosure can easily produce a second buffer body having a lower rigidity than the first buffer body, and the packaging member of the present disclosure can easily produce a first buffer body having an increased rigidity from the center to the ends.

[0018] (7) In the packaging material of any of the aspects (1) to (6) of the present disclosure, it is preferable that the second buffer body includes two or more of a first portion formed by cutting out a part of the material constituting the second buffer body, a second portion having a slit formed along the length of the second buffer body, a third portion having a lead line formed along the length of the second buffer body, a fourth portion having a perforation blade formed along the length of the second buffer body, and a fifth portion having a line formed along the length of the second buffer body.

[0019] The packaging member of the present disclosure can easily produce a second buffer body having a lower rigidity than the first buffer body, and the packaging member of the present disclosure can easily produce a first buffer body having a rigidity that increases stepwise from the center to the ends.

[0020] (8) In the packaging material of any one of the aspects (2) to (7) of the present disclosure, it is preferable that the buffer body further includes a third buffer body that contacts the corner portion from below, and a fourth buffer body that contacts the corner portion from above.

[0021] The packaging material of the present disclosure can protect the entire periphery of the target part with a cushioning material, while suppressing deformation that occurs on the peripheral edge of the target part during storage. [Brief description of the drawings]

[0022] [Figure 1] 1 is an exploded perspective view illustrating a packaging member and a target part packaged by the packaging member according to a first embodiment of the present disclosure. FIG. [Diagram 2] FIG. 2 is a schematic plan view showing a target part. [Diagram 3] FIG. 4 is a schematic plan view showing the arrangement of a first buffer body relative to a target component. [Figure 4] FIG. 11 is a schematic plan view showing the arrangement of a second buffer body relative to a target component. [Diagram 5] FIG. 4 is a schematic view showing a second buffer body according to the first embodiment. [Figure 6] FIG. 2 is a schematic perspective view showing a second buffer body according to the first embodiment. [Figure 7] 3 is a partial schematic view showing a state in which a target part is supported by a packaging member according to the first embodiment; FIG. [Figure 8] FIG. 11 is a schematic perspective view showing a modified example of the second buffer body according to the first embodiment. [Figure 9] 11 is an exploded perspective view illustrating a packaging member and a target part packaged by the packaging member according to a second embodiment of the present disclosure. FIG. [Figure 10] 13 is a partial schematic view showing a state in which a target part is supported by a packaging member according to a second embodiment. FIG. [Figure 11] FIG. 11 is a schematic perspective view showing an arrangement state of a second buffer body according to a second embodiment. [Figure 12] FIG. 11 is a schematic perspective view showing a second buffer body according to a second embodiment. [Figure 13] 13 is a partial schematic view showing a state in which a target part is supported by a packaging member including a second buffer body according to a second embodiment. FIG.

[0023] The packaging member of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0024] [Regarding the first embodiment of the packaging material of the present disclosure] Fig. 1 is a perspective exploded view showing a schematic diagram of a packaging member according to a first embodiment of the present disclosure and a target part to be packaged by the packaging member. Fig. 1 shows a first embodiment of a packaging member 10 according to the present disclosure. In the following description, the packaging member 10 according to the first embodiment is also referred to as a first packaging member 10X. In the following description, when describing a configuration common to the first packaging member 10X and another packaging member (a second packaging member 10Y shown in Fig. 9) described later, the packaging member is simply referred to as "packaging member 10."

[0025] 1 is a member used for packaging a target part 50, and includes a box body 20 and a cushioning body 30. The box body 20 and the cushioning body 30 constituting the packaging member 10 of the present embodiment are made of cardboard made of paper. Note that the box body 20 and the cushioning body 30 may be made of a material other than cardboard made of paper, and may be made of, for example, cardboard made of plastic.

[0026] The box body 20 includes a lower box (body) 21 that covers the target part 50 from below, and an upper box (lid) 22 that covers the target part 50 from above. The lower box 21 is a box that has a lower surface and four side surfaces and is open on the top surface. The lower box 21 includes a bottom plate 21a that is square in plan view, and four side plates 21b that extend upward from the four sides of the bottom plate 21a. The upper box 22 is a box that has a top surface and four side surfaces and is open on the bottom surface. The upper box 22 includes a top plate 22a that is square in plan view, and four side plates 22b that extend downward from the four sides of the top plate 22a. The box body 20 is used as a single unit by placing the upper box 22 on the lower box 21. The box body 20 forms a rectangular parallelepiped when the upper box 22 is placed on the lower box 21.

[0027] The buffer 30 includes a first buffer 31 disposed below the target component 50 housed in the box 20, and a second buffer 32 disposed above the target component 50. The detailed configurations of the first buffer 31 and the second buffer 32 will be described later.

[0028] [About the target parts] FIG. 2 is a schematic plan view showing a target part. FIG. 2 shows a target part 50 that is the target of packaging by the packaging member 10 of this embodiment. The target part 50 is an example of a target part that is the target of packaging by the packaging member of the present disclosure. The target part 50 shown in FIGS. 1 and 2 is a decorative panel that constitutes a part of a cassette type four-way blowing type indoor unit among the indoor units that constitute an air conditioner. As shown in FIGS. 1 and 2, the target part 50 of this embodiment has a rectangular shape in a plan view. In the following description, the direction of the side along the outer edge of the target part 50 and the direction parallel thereto are also referred to as the "side direction".

[0029] 2, the target part 50 has corners 51 located at the four corners of a rectangle, and a peripheral portion 52 connecting adjacent corners 51 in the side direction. The corners 51 and the peripheral portion 52 are made of resin. The target part 50 has a rectangular opening 53 formed in the peripheral portion 52.

[0030] In the following description, a first region A1 is set for the target part 50, which is a region where the first buffer 31 and the second buffer 32 come into contact. The first region A1 is a region that includes the center in the side direction of the peripheral edge 52. It is preferable that the range of the first region A1 in the side direction is wider than the formation range of the opening 53. The first region A1 is located outside the opening 53, based on the center Q of the target part 50 in a plan view.

[0031] In the target part 50, the peripheral part 52 is made of resin and is therefore easily deformed when an external force is applied, and is difficult to return to its original shape when held in a deformed state. The target part 50 has an opening 53 formed in the peripheral part 52, and therefore the rigidity around the opening 53 is particularly low and is therefore easily deformed. In other words, in the packaging member 10, the first region A1 is set in a portion of the peripheral part 52 where deformation is particularly likely to occur.

[0032] Furthermore, in the following description, a second region A2 is further defined for the target part 50. The second region A2 is a region that includes a corner 51 and is located between adjacent first regions A1. The portion of the target part 50 included in the second region A2 is less likely to deform than the portion included in the first region A1.

[0033] In addition, the target part 50 shown in this embodiment has a rectangular shape in a plan view, but the shape of the target part to be packed by the packaging member of the present disclosure is not limited to this. The packaging member of the present disclosure may pack target parts having a circular or elliptical shape in a plan view, or target parts having other shapes. In addition, in this embodiment, a decorative panel constituting a cassette type indoor unit is exemplified as the target part 50, but the target part having a rectangular shape in a plan view to be packed by the packaging member of the present disclosure is not limited to this, and may be, for example, a decorative panel constituting a part of a two-way blowing type indoor unit.

[0034] [About the first buffer] FIG. 3 is a schematic plan view showing the arrangement of the first buffer body relative to the target part. As shown in FIG. 1, the first packaging member 10X includes four first buffer bodies 31. The first buffer body 31 in this embodiment is made of cardboard made of paper. The first buffer body 31 is made by rolling a rectangular piece of cardboard into a cylindrical shape. The cross section of the first buffer body 31 perpendicular to the axial direction is substantially rectangular. The first buffer body 31 shown in this embodiment has a portion where one end and the other end of the cardboard piece in the rolling direction overlap. The direction parallel to the axial direction of the first buffer body 31 is also referred to as the length direction of the first buffer body 31. The first buffer body 31 shown in this embodiment is prepared as a separate body from the lower box 21, but the first buffer body 31 may be configured by making a cut in the side plate 21b of the lower box 21 and rolling the cut part inside the box. In this case, the first buffer body 31 is prepared as one body with the lower box 21.

[0035] As shown in FIG. 3, the first buffer 31 is disposed at a plurality of positions along the side plate 21b of the lower box 21. In this embodiment, the first buffer 31 is disposed at the center of each of the four side plates 21b in the direction of each edge (a total of four). The first buffer 31 has an upper surface 31a, a lower surface 31b, and a side surface 31c (see FIG. 7, which will be described later). The upper surface 31a contacts the lower surface of the peripheral portion 52 of the target part 50. The lower surface 31b contacts the bottom plate 21a of the lower box 21. The side surface 31c contacts the side plate 21b of the lower box 21.

[0036] When the target part 50 is packaged using the first packaging member 10X, the target part 50 accommodated in the box body 20 has the four first buffer bodies 31 contacting the peripheral portion 52 from below. Therefore, the target part 50 is supported from below by the four first buffer bodies 31. As shown in FIG. 3, the first buffer bodies 31 contact the lower surface of the peripheral portion 52 in the first region A1. Note that, in this embodiment, the first region A1 and the region of the peripheral portion 52 with which the first buffer bodies 31 come into contact coincide with each other, but the region of the peripheral portion 52 with which the first buffer bodies 31 come into contact may be wider than the first region A1.

[0037] [About the second buffer] FIG. 4 is a schematic plan view showing the arrangement of the second buffer body relative to the target part. As shown in FIG. 1, the first packaging member 10X includes four second buffer bodies 32. The second buffer body 32 in this embodiment is made of cardboard made of paper. The second buffer body 32 is created by rolling a rectangular piece of cardboard into a cylindrical shape. The cross section of the second buffer body 32 perpendicular to the axial direction is substantially rectangular. The second buffer body 32 shown in this embodiment has a portion where one end and the other end of the cardboard piece in the rolling direction overlap. The direction parallel to the axial direction of the second buffer body 32 is also referred to as the length direction of the second buffer body 32.

[0038] As shown in FIG. 4, the second buffer 32 is disposed at a plurality of positions along the side plate 21b of the lower box 21. In this embodiment, the second buffer 32 is disposed at the center of each of the four side plates 21b in the side direction (a total of four). The second buffer 32 has an upper surface 32a, a lower surface 32b, and a side surface 32c. A portion of the second buffer 32 including the center (center line C) in the length direction is referred to as a central portion 32d, and an end portion in the length direction is referred to as an end portion 32e. In this description, the "central portion" refers to a range in which the center line C is located in the center in the length direction and has a length of 1 / 2 or less of the second buffer 32. The second buffer 32 is used in a position in which the upper surface 32a faces upward and the lower surface 32b faces downward (see FIG. 4). When used in this position, the upper surface 32a contacts the top plate 22a of the upper box 22, the lower surface 32b contacts the upper surface of the peripheral portion 52 of the target part 50, and the side surface 32c contacts the side plate 21b of the lower box 21.

[0039] When the target part 50 is packaged using the first packaging member 10X, the four second buffer bodies 32 contact the peripheral part 52 of the target part 50 housed in the box body 20 from above. At this time, the second buffer bodies 32 contact the upper surface of the peripheral part 52 in the first region A1. In this state, when stress acts on the upper box 22 (top plate 22a), the second buffer bodies 32 are deformed by the stress being transmitted through the top plate 22a. The second buffer bodies 32 can absorb a part of the stress acting on itself by adjusting the amount of deformation in the length direction for each part. Therefore, when stress acts on the upper box 22, the second buffer bodies 32 can control the stress acting on the member (peripheral part 52 of the target part 50) that contacts the lower surface 32b. As a result, the deformation of the peripheral part 52 of the target part 50 can be suppressed. It should be noted that the second buffer 32 can actively deform the peripheral portion 52 of the target component 50 into a desired shape by adjusting the amount of deformation in the length direction for each portion.

[0040] [About the processed part] FIG. 5 is a schematic diagram showing a second buffer body according to the first embodiment. FIG. 6 is a schematic perspective view showing a second buffer body according to the first embodiment. FIGS. 5 and 6 show a second buffer body 32 according to the first embodiment. In the following description, the second buffer body 32 according to the first embodiment is also referred to as a second buffer body 32X. In the following description, when a configuration common to the second buffer body 32X and the second buffer body 32 according to other embodiments described later is described, it is simply referred to as a "second buffer body 32."

[0041] The second buffer 32 has a processed portion P formed on the side surface 32c. The processed portion P is a portion that has been processed to adjust the rigidity of the second buffer 32. In the second buffer 32, the processed portion P has a lower rigidity than portions other than the processed portion P. In other words, the processed portion P in the second buffer 32 is more easily deformed than portions other than the processed portion P. Note that, although FIG. 5 shows the processed portion P formed on one side surface 32c, the processed portion P is also formed on the other side surface 32c (not shown) facing the one side surface 32c.

[0042] In the second buffer body 32X shown in FIGS. 5 and 6, the processed portion P includes a first processed portion P1, a second processed portion P2, a third processed portion P3, a fourth processed portion P4, and a fifth processed portion P5.

[0043] 5 and 6, the first processed portion P1 is a portion that has been processed by cutting out a part of the side surface 32c of the second buffer body 32. This processing is also called "punching" processing.

[0044] The second processed portion P2 is a portion processed to form a continuous slit in a part of the side surface 32c of the second buffer body 32. This processing is also called "slit" processing.

[0045] The third processed portion P3 is a portion of the side surface 32c of the second buffer 32 that has been machined to have a "lead crease." Note that the "lead crease" referred to here is a portion in which slits and creases of a predetermined length are alternately formed, with adjacent slits connected by creases. The creases are also called "scribes" and are portions that have linear indentations (that are not cut).

[0046] The fourth processed portion P4 is a portion of the side surface 32c of the second buffer 32 that has been processed to have a "perforation" thereon. The "perforation" is a portion in which slits of a predetermined length are formed at regular intervals. In other words, the "perforation" has a form that is the same as the above-mentioned "lead crease" except that the crease is omitted.

[0047] The fifth processed portion P5 is a portion of the side surface 32c of the second buffer body 32 where a "ruled line" of a predetermined length is processed.

[0048] When the processed parts P1 to P5 included in the processed part P are arranged in order of increasing rigidity, they are the first processed part P1, the second processed part P2, the third processed part P3, the fourth processed part P4, and the fifth processed part P5. The part of the second buffer 32 having the processed part P has different rigidity depending on the type of processing applied thereto. In other words, the rigidity of the second buffer 32X is adjusted depending on the type of processing applied to the processed part P.

[0049] 5 and 6, the second buffer 32X is provided with a first processed portion P1, a second processed portion P2, a third processed portion P3, a fourth processed portion P4, and a fifth processed portion P5 in this order from the center 32d toward the end 32e. Therefore, the portion of the second buffer 32 where the processed portions P are provided has higher rigidity from the center 32d toward the end 32e. Furthermore, the portion of the second buffer 32 where the processed portions P are provided has higher rigidity in a stepwise manner from the center 32d toward the end 32e.

[0050] The second buffer 32 having such a processed portion P has a lower rigidity than the first buffer 31 having no processed portion P. In this embodiment, the processed portions P1-P5 are arranged in ascending (or ascending) order of rigidity, but the arrangement order of the processed portions P1-P5 in the packaging member of the present disclosure is not limited to this, and any order suitable for deforming the target part into a desired shape can be appropriately selected.

[0051] [Support state of target part 50 by first packaging member 10X] Fig. 7 is a partial schematic diagram showing a state in which a target part is supported by a packaging member according to the first embodiment. Fig. 7 shows a target part 50 packaged using a first packaging member 10X. As shown in Fig. 7, the target part 50 packaged in the first packaging member 10X is housed inside the box body 20, with the first buffer body 31 in contact with the lower surface of the peripheral portion 52 in the first region A1 and the second buffer body 32X in contact with the upper surface of the peripheral portion 52 in the first region A1.

[0052] When multiple target parts 50 in such a packaged state are stacked and stored, a load F due to the weight of the first packaging material 10X and the target parts 50 stacked above it acts on the first packaging material 10X and the target parts 50. This load F acts on the peripheral portion 52 via the upper box 22 and the second cushioning body 32X.

[0053] In the second buffer 32X having the processed portion P, the processed portions P1 to P5 are deformed by the load F acting on the second buffer 32X, and the deformation amount of each of the processed portions P1 to P5 decreases from P1 to P5. The second buffer 32X absorbs a part of the load F by the deformation of each of the processed portions P1 to P5, and can control the stress acting on the peripheral portion 52 below. Specifically, when the load F acts on the second buffer 32X, the first processed portion P1 is deformed the most. The deformation amount of each of the processed portions P1 to P5 when the load F acts decreases stepwise from the center portion 32d side to the end portion 32e side. In other words, the deformation amount of the second buffer 32X at each position along the length direction decreases stepwise from the center portion 32d to the end portion 32e. Therefore, the load Fa acting on the peripheral portion 52 in contact with the central portion 32d is smaller than the load Fb acting on the peripheral portion 52 in contact with the second buffer 32 on the end portion 32e side of the central portion 32d. In this way, the first packaging member 10X including the second buffer 32X can control the deformation occurring in the peripheral portion 52 during storage of the target part 50. The first packaging member 10X can easily control the amount of deformation occurring in the entire region including the center to the end of the peripheral portion 52 in the side direction. Therefore, when the target part 50 is packaged using the first packaging member 10X, the deformation occurring in the peripheral portion 52 of the target part 50 during storage is suppressed. And, the deformation of the center of the peripheral portion 52 of the target part 50 in the side direction is suppressed.

[0054] [Modifications of the second buffer body] 8 is a schematic perspective view showing a modified example of the second buffer body according to the first embodiment. The second buffer body 32X does not necessarily include all of the first processed portion P1, the second processed portion P2, the third processed portion P3, the fourth processed portion P4, and the fifth processed portion P5 in the processed portion P, but may include at least one of them, and more preferably includes two or more. When two or more types of processed portions P1 to P5 are provided, the selected portions are preferably arranged in order of increasing rigidity from the central portion 32d toward the end portion 32e.

[0055] Fig. 8 illustrates a modified example of the second buffer 32X. The second buffer 32X according to the modified example shown in Fig. 8 includes a second processed portion P2, a third processed portion P3, and a fourth processed portion P4. The second buffer 32 shown in Fig. 7 includes two fourth processed portions P4a and P4b. In other words, the second buffer 32X according to the modified example shown in Fig. 8 includes a processed portion P that is formed by selecting three types from among the processed portions P1 to P5, and does not include the first processed portion P1 and the fifth processed portion P5.

[0056] The fourth processed portion P4a and the fourth processed portion P4b have different lengths and numbers of slits that constitute the "perforation." The fourth processed portion P4 having the "perforation" can have a lower rigidity as the ratio of the slits to the unit length increases. In the second buffer 32 shown in FIG. 8, the portion where the fourth processed portion P4a is processed has a lower rigidity than the portion where the fourth processed portion P4b is processed.

[0057] [Second embodiment of the packaging material of the present disclosure] 9 is a perspective exploded view showing a packaging member according to a second embodiment of the present disclosure and a target part to be packaged by the packaging member. In the following description, the packaging member 10 according to the second embodiment is also referred to as a second packaging member 10Y.

[0058] The second packaging member 10Y differs from the first packaging member 10X in that the buffer 30 further includes a third buffer 33 disposed below a corner 51 of the target part 50 and a fourth buffer 34 disposed above the corner 51, but the other configurations are the same as those of the first packaging member 10X. In the following description, the parts of the second packaging member 10Y that are different from the first packaging member 10X will be described, and the description of the common parts will be omitted. Note that the parts of the second packaging member 10Y that are the same as those of the first packaging member 10X are denoted by the same reference numerals as those of the first packaging member 10X.

[0059] [About the third buffer] As shown in FIG. 9, the second packaging member 10Y includes four third buffers 33. The third buffers 33 in this embodiment are made of cardboard made of paper. The third buffers 33 are made by rolling up a rectangular piece of cardboard into a cylindrical shape, providing a V-shaped notch in the center in the axial direction, and bending the cylindrical member into an L-shape at the notch. The third buffers 33 have a cross section perpendicular to the axial direction that is substantially rectangular. The third buffers 33 shown in this embodiment have a portion where one end and the other end of the cardboard piece in the rolling direction overlap.

[0060] The third buffers 33 are disposed at a plurality of corner positions along the side plate 21b of the lower box 21. In this embodiment, one third buffer 33 is disposed at each of the four corners of the lower box 21 (four in total). When the target part 50 is packaged using the second packaging member 10Y, the four corners 51 of the target part 50 contained in the box body 20 are supported from below by the four third buffers 33.

[0061] [About the fourth buffer] As shown in FIG. 9, the second packaging member 10Y includes four fourth buffers 34. The fourth buffers 34 in this embodiment are made of cardboard made of paper. The fourth buffers 34 are made by rolling up a rectangular piece of cardboard into a cylindrical shape, providing a V-shaped notch in the center in the axial direction, and bending the cylindrical member into an L-shape along the notch. The cross section of the fourth buffer 34 perpendicular to the axial direction is substantially rectangular. The fourth buffer 34 shown in this embodiment has a portion where one end and the other end of the cardboard piece in the rolling direction overlap.

[0062] The fourth buffers 34 are disposed at a plurality of corner positions along the side plate 21b of the lower box 21. In this embodiment, one fourth buffer 34 is disposed at each of the four corners of the lower box 21 (four in total). When the target part 50 is packaged using the second packaging member 10Y, the four fourth buffers 34 come into contact with the four corners 51 of the target part 50 accommodated in the box body 20 from above.

[0063] The second packaging member 10Y includes the third buffer 33 and the fourth buffer 34, and therefore can support and protect the entire periphery of the target part 50. Therefore, the second packaging member 10Y can suppress deformation of the target part 50 not only at the peripheral portion 52 in the first region A1, but also at the corners 51 in the second region A2.

[0064] [Support state of the target part 50 by the second packaging member 10Y] 10 is a partial schematic diagram showing a state in which the target part is supported by the packaging member according to the second embodiment. As shown in FIG. 10, the target part 50 packaged using the second packaging member 10Y is accommodated inside the box body 20, and the first buffer 31 contacts the lower surface of the peripheral part 52 in the first region A1, and the second buffer 32X contacts the upper surface of the peripheral part 52 in the first region A1. The target part 50 further has the third buffer 33 contacting the lower surface of the corner part 51 in the second region A2, and the fourth buffer 34 contacting the upper surface of the corner part 51 in the second region A2. When a plurality of target parts 50 packaged in this manner are stacked and stored, a load F due to the weight of the second packaging member 10Y and the target part 50 stacked above it acts on the second packaging member 10Y and the target part 50. This load F acts on the peripheral portion 52 and the corner portion 51 of the target part 50 via the upper box 22, the second buffer body 32X, and the fourth buffer body .

[0065] In the target part 50 packed using the second packaging member 10Y, the load Fa acting on the peripheral part 52 due to contact with the central part 32d can be made smaller than the load Fb acting on the peripheral part 52 due to contact with the end part 32e side of the central part 32d, as in the case of packing using the first packaging member 10X. The second packaging member 10Y having such a configuration can control the deformation occurring in the peripheral part 52 in the first area A1 during storage of the target part 50. Therefore, when the second packaging member 10Y is used, the deformation occurring in the peripheral part 52 in the first area A1 of the target part 50 during storage is suppressed. Furthermore, when the second packaging member 10Y is used, the deformation occurring in the corner part 51 of the target part 50 during storage is suppressed.

[0066] [Regarding the second cushioning material in the second packaging material] FIG. 11 is a schematic perspective view showing the arrangement of the second buffer body according to the second embodiment. FIG. 12 is a schematic perspective view showing the second buffer body according to the second embodiment. FIGS. 11 and 12 show the second buffer body 32 according to the second embodiment. In the following description, the second buffer body 32 according to the second embodiment is also referred to as the second buffer body 32Y. The second buffer body 32Y has a different shape from the second buffer body 32X described above. The second packaging member 10Y (see FIG. 9) may use the second buffer body 32Y shown in FIGS. 11 and 12 as the second buffer body 32 instead of the second buffer body 32X. The second buffer body 32Y has an L-shaped shape including a portion corresponding to the fourth buffer body 34 (see FIG. 9) and is divided at the center line C as a boundary, which is different from the second buffer body 32X described above. The second buffer 32Y has both the function of the second buffer 32X shown in Fig. 9 and the function of the fourth buffer 34. When the second buffer 32Y is used, the fourth buffer 34 (see Fig. 9) becomes unnecessary.

[0067] In the second packaging member 10Y shown in Fig. 9, the buffer 30 arranged above the target part 50 is composed of a total of eight parts including the second buffer 32X and the fourth buffer 34. In contrast, when the second buffer 32Y shown in Fig. 11 is used, the buffer 30 arranged above the target part 50 can be composed of only the total of four second buffers 32Y. Therefore, when the second buffer 32Y shown in Fig. 11 is used, the number of parts of the packaging member 10 can be reduced, and the packaging work of the target part 50 using the packaging member 10 can be further simplified.

[0068] [Regarding the state of support of the target part 50 by the packaging material including the second cushioning body 32Y] 13 is a partial schematic diagram showing a state in which a target part is supported by a packaging member including a second buffer body according to the second embodiment. As shown in FIG. 13, when a second packaging member 10Y including a second buffer body 32Y is used, the target part 50 is accommodated inside the box body 20, and the first buffer body 31 contacts the lower surface of the peripheral part 52 in the first region A1, and the second buffer body 32Y contacts the upper surfaces of the peripheral part 52 in the first region A1 and the corner parts 51 in the second region A2. The target part 50 further contacts the lower surface of the corner part 51 in the second region A2 with the third buffer body 33, and contacts the upper surface of the corner part 51 in the second region A2 with the second buffer body 32Y. When a plurality of target parts 50 in such a packaged state are stacked and stored, a load F due to the weight of the second packaging member 10Y and the target parts 50 stacked above them acts on the second packaging member 10Y and the target parts 50. This load F acts on the peripheral portion 52 and the corner portion 51 of the target part 50 via the upper box 22 and the second buffer body 32Y.

[0069] The second buffer 32Y has a processing portion P similar to the second buffer 32X described above, and the processing portions P1 to P5 are deformed by the load F acting on the second buffer 32Y. The second buffer 32Y can control the stress acting on the member located below it by the processing portions P1 to P5 being deformed. Therefore, the load Fa acting on the peripheral portion 52 in contact with the central portion 32d is smaller than the load Fb acting on the peripheral portion 52 in contact with the second buffer 32Y on the end portion 32e side of the central portion 32d. The second packaging member 10Y including the second buffer 32Y can control the deformation occurring in the peripheral portion 52 in the first region A1 during storage of the target part 50. Therefore, when the target part 50 is packaged using the second packaging member 10Y including the second buffer 32Y, the deformation occurring in the peripheral portion 52 of the target part 50 during storage is suppressed. Furthermore, when the second packaging member 10Y including the second buffer body 32Y is used, deformation of the corners 51 of the target part 50 during storage is suppressed.

[0070] [Effects of the embodiment] (1) The packaging member 10 of the above embodiment includes a box body 20 that stores a target part 50 having a peripheral portion 52, and buffer bodies 30 that are arranged at multiple positions along the side plate 21b of the box body 20 and contact the peripheral portion 52. The buffer body 30 includes a first buffer body 31 that contacts the peripheral portion 52 from below, and a second buffer body 32 that contacts the peripheral portion 52 from above. In the packaging member 10 of the above embodiment, the second buffer body 32 has a lower rigidity than the first buffer body 31.

[0071] In the packaging material 10 having the above configuration, when a plurality of target parts 50 contained in the packaging material 10 are stacked and stored, and the weight of the other target parts 50 acts on the peripheral portion 52, the second buffer body 32 is more likely to deform than the first buffer body 31. For this reason, the packaging material 10 of the above embodiment can control the load F acting on the peripheral portion 52 by adjusting the amount of deformation in the length direction of the second buffer body 32. As a result, the packaging material 10 of the above embodiment can suppress deformation occurring on the peripheral portion 52 of the target parts 50 during storage.

[0072] (2) In the packaging member 10 of the above embodiment, the target part 50 has a rectangular shape having corners 51 located at the four corners and a peripheral part 52 connecting the corners 51, and the box 20 has a rectangular parallelepiped shape in which the rectangular target part 50 is stored. The first buffer 31 and the second buffer 32 contact the peripheral part 52 in a first region A1 including the center of the side of the peripheral part 52.

[0073] The packaging material 10 having the above configuration can suppress deformation that occurs in the first area A1 of the peripheral portion 52 during storage of the rectangular target part 50. This allows the packaging material 10 to suppress deformation of the center of the peripheral portion 52 in the side direction.

[0074] (3) In the packaging member 10 of the above embodiment, the rigidity of the central portion 32d of the second buffer body 32 in the length direction is lower than the rigidity of the end portion 32e in the length direction.

[0075] The packaging member 10 having the above configuration can change the amount of deformation of the second buffer 32 at the center 32d and the end 32e in the length direction. This makes it possible to make the load Fa acting on the peripheral portion 52 that contacts the second buffer 32 at the center 32d smaller than the load Fb acting on the peripheral portion 52 that contacts the second buffer 32 on the end 32e side of the center 32d. The packaging member 10 of the above embodiment can suppress deformation occurring in the first region A1 including the center of the side of the peripheral portion 52 during storage.

[0076] (4) In the packaging member 10 of the above embodiment, the second buffer 32 has a rigidity that increases stepwise from the central portion 32d toward the end portion 32e.

[0077] The packaging member 10 having the above configuration can change the amount of deformation of the second buffer 32 stepwise from the central portion 32d toward the end portion 32e in the length direction. This makes it possible to make the load Fa acting on the peripheral portion 52 that contacts the second buffer 32 at the central portion 32d smaller than the load Fb acting on the peripheral portion 52 that contacts the second buffer 32 on the end portion 32e side of the central portion 32d. The packaging member 10 of the above embodiment can easily suppress deformation occurring in the first region A1 including the center of the side of the peripheral portion 52 during storage.

[0078] (5) In the packaging member 10 of the above embodiment, the target part 50 has an opening 53 opened in the peripheral portion 52. In the packaging member 10 of the above embodiment, the first buffer 31 and the second buffer 32 contact the peripheral portion 52 on the outer side of the opening 53.

[0079] The target part 50 having the opening 53 is particularly susceptible to deformation of the peripheral edge 52 during storage. The packaging member 10 of the above embodiment can suppress deformation of the target part 50 having the opening 53 in the first region A1 including the center of the side of the peripheral edge 52 during storage.

[0080] (6) In the packaging material 10 of the above embodiment, the second cushioning body 32 has processable portions P including a first processable portion P1 formed by cutting out a portion of the material constituting the second cushioning body 32, a second processable portion P2 having a slit formed along the length direction of the second cushioning body 32, a third processable portion P3 having a lead line formed along the length direction of the second cushioning body 32, a fourth processable portion P4 having a sewing blade formed along the length direction of the second cushioning body 32, and a fifth processable portion P5 having a line formed along the length direction of the second cushioning body 32.

[0081] The packaging member 10 having the above configuration can easily produce the second buffer body 32 having a lower rigidity than the first buffer body 31. Moreover, the packaging member 10 having the above configuration can easily produce the second buffer body 32 having an increased rigidity from the central portion 32d toward the end portion 32e.

[0082] (7) In the packaging material 10 of the above embodiment, the second cushioning body 32 includes two or more parts (all five parts in the above embodiment) of a first processed portion P1 obtained by cutting out a portion of the material constituting the second cushioning body 32; a second processed portion P2 having a slit formed along the length direction of the second cushioning body 32; a third processed portion P3 having a lead line formed along the length direction of the second cushioning body 32; a fourth processed portion P4 having a sewing blade formed along the length direction of the second cushioning body 32; and a fifth processed portion P5 having a line formed along the length direction of the second cushioning body 32.

[0083] The packaging member 10 having the above configuration can easily produce the second buffer body 32 having a lower rigidity than the first buffer body 31. Moreover, the packaging member 10 having the above configuration can easily produce the second buffer body 32 having a rigidity that increases stepwise from the central portion 32d toward the end portion 32e.

[0084] (8) In the second packaging member 10Y, the buffer 30 further includes a third buffer 33 that comes into contact with the corner 51 from below, and a fourth buffer 34 that comes into contact with the corner 51 from below.

[0085] The packaging material 10 having the above-described configuration can protect the entire periphery of the target part 50 with the buffer body 30, while suppressing deformation that occurs at the peripheral portion 52 of the target part 50 during storage.

[0086] Although the embodiments have been described above, it will be understood that various changes in form and details are possible without departing from the spirit and scope of the claims. [Explanation of symbols]

[0087] 10: Packaging materials 10X: First packaging material 10Y: Second packaging material 20: Box body 21b: Side plate 30:Buffer 31: 1st buffer 32:Second buffer 32d: Central part 32e: End 33: Third buffer 34: 4th buffer 50: Target parts 51: Corner 52: Periphery 53: Opening P1: 1st processed part (1st part) P2: 2nd processed part (2nd part) P3: 3rd processed part (3rd part) P4: 4th processed part (4th part) P5: 5th processed part (5th part) A1: 1st area (area) C: Center line

Claims

1. A box (20) for housing a target part (50) having a peripheral portion (52); a buffer body (30) arranged at a plurality of positions along the side plate (21b) of the box body (20) and in contact with the peripheral portion (52); A packaging member (10) comprising: The buffer (30) is The cushioning device includes a first cushioning body (31) that contacts the peripheral portion (52) from below and a second cushioning body (32) that contacts the peripheral portion (52) from above, The packaging material (10), wherein the second buffer body (32) has a lower rigidity than the first buffer body (31).

2. The target part (50) has a rectangular shape having corners (51) located at four corners and the peripheral portion (52) connecting the corners (51), The box (20) has a rectangular parallelepiped shape in which the rectangular target part (50) is stored, The packaging material (10) according to claim 1, wherein the first buffer body (31) and the second buffer body (32) contact the peripheral portion (52) in an area (A1) including the center of a side of the peripheral portion (52).

3. The second buffer body (32) is 3. The packaging material (10) according to claim 1 or 2, wherein the rigidity of a central portion (32d) in the longitudinal direction of the second buffer body (32) is lower than the rigidity of an end portion (32e) in the longitudinal direction.

4. The second buffer body (32) is The packaging member (10) according to claim 3, wherein the stiffness increases stepwise from the central portion (32d) towards the end portion (32e).

5. The target part (50) has an opening (53) opened in the peripheral portion (52), The first buffer body (31) and the second buffer body (32) are The packaging member (10) according to claim 1 or 2, which is in contact with the peripheral edge (52) outside the opening (53).

6. The second buffer body (32) is A first portion (P1) formed by cutting out a part of the material constituting the second buffer body (32); Or, a second portion (P2) having a slit formed along the length direction of the second buffer body (32), Or, a third portion (P3) having a lead crease formed along the length direction of the second buffer body (32), Or, a fourth portion (P4) having a perforation formed along the length direction of the second buffer body (32), The packaging member (10) according to claim 1 or 2, further comprising a fifth portion (P5) having a crease formed along the length of the second cushioning body (32).

7. The second buffer body (32) is A first portion (P1) formed by cutting out a part of the material constituting the second buffer body (32); a second portion (P2) having a slit formed along the length of the second buffer body (32); a third portion (P3) having a lead crease formed along the length direction of the second buffer body (32); a fourth portion (P4) having a perforation formed along the length of the second buffer body (32); The packaging material (10) according to claim 1 or claim 2, further comprising two or more portions of a fifth portion (P5) having a crease formed along the length of the second cushioning body (32).

8. The buffer (30) is a third buffer body (33) that contacts the corner portion (51) from below; The packaging member (10) according to claim 2, further comprising: a fourth buffer body (34) that contacts the corner portion (51) from above.

Images