Packaging materials

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 a packaging member.

Background Art

[0002] Conventionally, target components such as decorative panels constituting an air conditioner (for example, a cassette-type indoor unit) are packaged by a packaging member that combines a box body and a buffer body disposed inside the box body (see Patent Document 1). The packaging member disclosed in Patent Document 1 is used for packaging a rectangular target component and includes a buffer body that protects the corners of the target component and a buffer body that protects the peripheral edge. The target component is stored and transported in a state of being packaged by the packaging member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The target components housed in the packaging member are generally stored in a stacked state. In this case, the weight of other target components acts on the target components during storage via the packaging member. Therefore, the target components housed in the packaging member may be deformed at the peripheral edge due to the weight (load) acting during storage.

[0005] The present disclosure aims to provide a packaging member having a novel structure and suppressing deformation occurring at the peripheral edge of the target component during storage.

Means for Solving the Problems

[0006] (1) The packaging member of the present disclosure includes a box body for housing a target part having a peripheral edge, and a number of buffers arranged at a plurality of positions along the side plate of the box body and in contact with the peripheral edge, wherein the buffers include a first buffer that contacts the peripheral edge from below and a second buffer that contacts it from above, and the second buffer has lower rigidity than the first buffer.

[0007] In the packaging member of this disclosure, when multiple target parts are stacked and stored, and the weight of other target parts acts on the periphery, the second buffer of the packaging member of this disclosure is more prone to deformation than the first buffer. The packaging member of this disclosure can control the load acting on the periphery by adjusting the amount of deformation of the second buffer in the longitudinal direction. As a result, the packaging member of this disclosure can suppress deformation that occurs on the periphery of the target parts during storage.

[0008] (2) In the packaging member of (1) of the present disclosure, the target part has a rectangular shape having corners located at the four corners and peripheral edges connecting the corners, the box has a rectangular parallelepiped shape in which the rectangular target part is housed, and preferably the first buffer and the second buffer are in contact with the peripheral edges in a region including the center of the edges of the peripheral edges.

[0009] The packaging member with the above configuration can suppress deformation that occurs in the area including the center of the edges at the periphery of a rectangular target part during storage.

[0010] (3) In the packaging member of the present disclosure according to (1) or (2), it is preferable that the rigidity of the central part of the second buffer in the longitudinal direction is lower than that of the ends in the longitudinal direction.

[0011] The packaging member of the present disclosure having the above configuration allows the amount of deformation of the second buffer to be varied at the central part and the ends in the longitudinal direction. This makes it possible to reduce the load acting on the peripheral edge in contact with the central part of the second buffer compared to the load acting on the peripheral edge in contact with the ends of the second buffer. The packaging member of the present disclosure can suppress deformation that occurs in the region including the center of the edge at the peripheral part during storage.

[0012] (4) In the packaging member of (3) of the present disclosure, it is preferable that the rigidity of the second cushioning body increases in stages from the central part toward the ends.

[0013] The packaging member of the present disclosure having the above configuration allows for a stepwise change in the amount of deformation of the second buffer from the center to the end in the longitudinal direction. This makes it possible to reduce the load acting on the peripheral edge that contacts the center of the second buffer compared to the load acting on the peripheral edge that contacts the end of the second buffer. The packaging member of the present disclosure can easily suppress deformation that occurs in the region including the center of the edge at the peripheral edge during storage.

[0014] (5) In any of the embodiments of (1) to (4) of the present disclosure, the target component preferably has an opening in the peripheral edge, and the first buffer and the second buffer are in contact with the peripheral edge outside the opening.

[0015] Parts with openings are particularly susceptible to deformation of their peripheral edges during storage. The packaging member of this disclosure can suppress deformation that occurs in the area including the center of the edge of a part with an opening during storage.

[0016] (6) In any of the above embodiments of (1) to (5) of the present disclosure, the second buffer preferably includes a first portion obtained by cutting out a part of the material constituting the second buffer, or a second portion having a slit formed along the length of the second buffer, or a third portion having a lead crease formed along the length of the second buffer, or a fourth portion having a perforating blade formed along the length of the second buffer, or a fifth portion having a crease line formed along the length of the second buffer.

[0017] The packaging member of this disclosure makes it easy to create a second buffer that has lower rigidity than the first buffer. Furthermore, the packaging member of this disclosure makes it easy to create a first buffer that has increasing rigidity from the center towards the edges.

[0018] (7) In any of the above embodiments of (1) to (6) of the present disclosure, the second buffer preferably includes two or more parts of the following: a first part obtained by cutting out a part of the material constituting the second buffer; a second part having a slit formed along the length of the second buffer; a third part having a lead crease formed along the length of the second buffer; a fourth part having a perforating blade formed along the length of the second buffer; and a fifth part having a creasing line formed along the length of the second buffer.

[0019] The packaging member of this disclosure makes it easy to create a second buffer that has lower rigidity than the first buffer. Furthermore, the packaging member of this disclosure makes it easy to create a first buffer in which the rigidity gradually increases from the center to the edges.

[0020] (8) In any of the embodiments of (2) to (7) of the present disclosure, the cushioning member preferably further includes a third cushioning member that contacts the corner from below and a fourth cushioning member that contacts the corner from above.

[0021] The packaging member of the present disclosure can protect the entire periphery of the target component with a buffer body and suppress deformation occurring at the peripheral edge of the target component during storage.

Brief Description of the Drawings

[0022] [Figure 1] It is a perspective exploded view schematically showing a packaging member according to a first embodiment of the present disclosure and a target component packaged by the packaging member. [Figure 2] It is a schematic plan view showing a target component. [Figure 3] It is a schematic plan view showing the arrangement of a first buffer body with respect to a target component. [Figure 4] It is a schematic plan view showing the arrangement of a second buffer body with respect to a target component. [Figure 5] It is a schematic view showing a second buffer body according to the first embodiment. [Figure 6] It is a schematic perspective view showing a second buffer body according to the first embodiment. [Figure 7] It is a partial schematic view showing the support state of a target component by a packaging member according to the first embodiment. [Figure 8] It is a schematic perspective view showing a modified example of a second buffer body according to the first embodiment. [Figure 9] It is a perspective exploded view schematically showing a packaging member according to a second embodiment of the present disclosure and a target component packaged by the packaging member. [Figure 10] It is a partial schematic view showing the support state of a target component by a packaging member according to the second embodiment. [Figure 11] It is a schematic perspective view showing the arrangement state of a second buffer body according to the second embodiment. [Figure 12] It is a schematic perspective view showing a second buffer body according to the second embodiment. [Figure 13] It is a partial schematic view showing the support state of a target component by a packaging member including a second buffer body according to the second embodiment.

[0023] The packaging components of this disclosure will be described in detail below with reference to the attached drawings.

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

[0025] The packaging member 10 shown in Figure 1 is a component used for packaging the target part 50, and consists of a box body 20 and a cushioning material 30. The box body 20 and cushioning material 30 that make up the packaging member 10 in this embodiment are made of corrugated cardboard. However, the box body 20 and cushioning material 30 may be made of materials other than corrugated cardboard, for example, they may be made of corrugated plastic.

[0026] The box body 20 is composed of 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 with a bottom surface and four sides, and an open top. The lower box 21 comprises 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 with a top surface and four sides, and an open bottom. The upper box 22 comprises 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 over the lower box 21. When the upper box 22 is placed over the lower box 21, the box body 20 forms a rectangular parallelepiped.

[0027] The buffer body 30 comprises a first buffer body 31 positioned below the target component 50 housed within the box body 20, and a second buffer body 32 positioned above it. The detailed configurations of the first buffer body 31 and the second buffer body 32 will be described later.

[0028] [Regarding the affected parts] Figure 2 is a schematic plan view showing the target component. Figure 2 shows the target component 50 that is to be packaged by the packaging member 10 of this embodiment. The target component 50 is an example of a target component that the packaging member of this disclosure will package. The target component 50 shown in Figures 1 and 2 is a decorative panel that constitutes part of a cassette-type, four-way air-discharge type indoor unit, which is part of the indoor unit that makes up an air conditioner. As shown in Figures 1 and 2, the target component 50 of this embodiment has a rectangular shape in plan view. In the following description, the direction of the edge along the outer edge of the target component 50, and the direction parallel thereto, will also be referred to as the "edge direction".

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

[0030] In the following description, a first region A1 is defined for the target part 50, which is the area in contact with the first buffer 31 and the second buffer 32. The first region A1 is the area that includes the center in the lateral direction of the peripheral portion 52. Preferably, the range of the first region A1 in the lateral direction is wider than the range in which the opening 53 is formed. The first region A1 is located outside the opening 53 with respect to the center Q of the target part 50 in a plan view.

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

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

[0033] In this embodiment, the target component 50 has a rectangular shape in plan view, but the shape of the target component to be packaged by the packaging member of this disclosure is not limited to this. The packaging member of this disclosure may package, for example, a target component that has a circular or elliptical shape in plan view, or a target component that has any other shape. In this embodiment, the target component 50 is exemplified as a decorative panel constituting a cassette-type indoor unit, but the rectangular target component in plan view to be packaged by the packaging member of this disclosure is not limited to this, and may, for example, be a decorative panel constituting part of a two-way air-discharge type indoor unit.

[0034] [Regarding the first buffer] Figure 3 is a schematic plan view showing the arrangement of the first buffers relative to the target component. As shown in Figure 1, the first packaging member 10X includes four first buffers 31. The first buffers 31 in this embodiment are made of corrugated cardboard. The first buffers 31 are made by winding a rectangular piece of corrugated cardboard into a cylindrical shape. The first buffers 31 have a substantially rectangular cross-section perpendicular to the axial direction. The first buffers 31 shown in this embodiment have a portion where one end and the other end of the corrugated cardboard piece overlap in the winding direction. The direction parallel to the axial direction of the first buffers 31 is also referred to as the longitudinal direction of the first buffers 31. In this embodiment, the first buffers 31 are prepared separately from the lower box 21, but the first buffers 31 may also be constructed by making a cut in the side plate 21b of the lower box 21 and winding the cut portion to the inside of the box. In this case, the first buffers 31 are prepared integrally with the lower box 21.

[0035] As shown in Figure 3, the first buffer 31 is positioned at multiple locations along the side plates 21b of the lower box 21. In this embodiment, one first buffer 31 is positioned at the center of each of the four side plates 21b in the lateral direction (a total of four buffers). The first buffer 31 has an upper surface 31a, a lower surface 31b, and a side surface 31c (see Figure 7, which will be explained later). The upper surface 31a contacts the lower surface of the peripheral edge 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 plates 21b of the lower box 21.

[0036] When the target part 50 is packaged using the first packaging member 10X, the target part 50 housed in the box 20 is supported from below by the four first buffers 31 that contact the peripheral edge 52. As such, the target part 50 is supported from below by the four first buffers 31. As shown in Figure 3, the first buffers 31 contact the lower surface of the peripheral edge 52 in the first region A1. In this embodiment, the first region A1 and the region of the peripheral edge 52 in contact with the first buffers 31 coincide, but the region of the peripheral edge 52 in contact with the first buffers 31 may be even wider than the first region A1.

[0037] [Regarding the second buffer] Figure 4 is a schematic plan view showing the arrangement of the second buffers relative to the target component. As shown in Figure 1, the first packaging member 10X is equipped with four second buffers 32. The second buffers 32 in this embodiment are made of corrugated cardboard. The second buffers 32 are made by winding a rectangular piece of corrugated cardboard into a cylindrical shape. The second buffers 32 have a substantially rectangular cross-section perpendicular to the axial direction. In this embodiment, the second buffers 32 have a portion where one end and the other end of the corrugated cardboard piece overlap in the winding direction. The direction parallel to the axial direction of the second buffers 32 is also referred to as the longitudinal direction of the second buffers 32.

[0038] As shown in Figure 4, the second buffer 32 is positioned at multiple locations along the side plates 21b of the lower box 21. In this embodiment, one second buffer 32 is placed at the center of each of the four side plates 21b (a total of four). The second buffer 32 has an upper surface 32a, a lower surface 32b, and side surfaces 32c. The portion of the second buffer 32 that includes the center (center line C) in the longitudinal direction is referred to as the central portion 32d, and the portions at the ends in the longitudinal direction are referred to as the end portions 32e. In this description, the "central portion" refers to the area where the center line C is located in the center in the longitudinal direction and has a length of 1 / 2 or less of the length of the second buffer 32. The second buffer 32 is used with the upper surface 32a facing upward and the lower surface 32b facing downward (see Figure 4). When used in this orientation, 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 edge 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 target part 50 housed in the box body 20 is in contact with the peripheral edge 52 from above by four second buffer bodies 32. At this time, the second buffer bodies 32 are in contact with the upper surface of the peripheral edge 52 in the first region A1. When stress is applied to the upper box 22 (top plate 22a) in this state, the second buffer bodies 32 deform as the stress is transmitted through the top plate 22a. The second buffer bodies 32 can absorb a portion of the stress applied to them by adjusting the amount of deformation in the longitudinal direction for each part, thereby distributing the deformation differently for each part. Therefore, when stress is applied to the upper box 22, the second buffer bodies 32 can control the stress acting on the member in contact with the lower surface 32b (the peripheral edge 52 of the target part 50). As a result, deformation of the peripheral edge 52 of the target part 50 can be suppressed. Furthermore, the second buffer 32 can be actively deformed into a desired shape by adjusting the amount of deformation in the longitudinal direction for each part, thereby allowing the peripheral portion 52 of the target part 50 to be deformed into a desired shape.

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

[0041] The second buffer 32 includes a processed portion P formed on its side surface 32c. The processed portion P is a part that has been processed to adjust the rigidity of the second buffer 32. In the second buffer 32, the processed portion P has lower rigidity than the parts other than the processed portion P. In other words, the processed portion P in the second buffer 32 is more easily deformed than the parts other than the processed portion P. Note that although Figure 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] As shown in Figures 5 and 6, the first workpiece P1 is a portion of the side surface 32c of the second buffer body 32 that has been cut out. This process is also called "punching".

[0044] The second processed portion P2 is a part of the side surface 32c of the second buffer body 32 in which a continuous slit has been created. This process is also called "slitting".

[0045] The third processed part P3 is a portion of the side surface 32c of the second buffer body 32 in which a "lead crease" has been processed. A "lead crease" here refers to a portion in which slits of a predetermined length and crease lines are formed alternately, with adjacent slits connected by crease lines. A crease line is also called a "scribing" and is a portion with a linear indentation (not a break).

[0046] The fourth workpiece P4 is a portion of the side surface 32c of the second buffer body 32 in which a "perforation blade" has been machined. A "perforation blade" is a portion in which slits of a predetermined length are formed at regular intervals. In other words, a "perforation blade" has a form in which the ruled lines are omitted from the "lead rule" described above.

[0047] The fifth processed part P5 is a portion of the side surface 32c of the second buffer body 32 in which a predetermined length of "scribed line" has been processed.

[0048] When the workpiece parts P1 to P5 included in the workpiece part P are arranged in order from lowest to highest rigidity, they are: 1st workpiece part P1, 2nd workpiece part P2, 3rd workpiece part P3, 4th workpiece part P4, and 5th workpiece part P5. The rigidity of the part of the second buffer body 32 that has the workpiece parts P differs depending on the type of processing applied. In other words, the rigidity of the second buffer body 32X is adjusted according to the type of processing applied to the workpiece parts P.

[0049] As shown in Figures 5 and 6, the second buffer body 32X is provided with a first workpiece P1, a second workpiece P2, a third workpiece P3, a fourth workpiece P4, and a fifth workpiece P5, in order from the central part 32d toward the end part 32e. Therefore, the rigidity of the parts of the second buffer body 32 where the workpieces P are provided increases from the central part 32d toward the end part 32e. Furthermore, the rigidity of the parts of the second buffer body 32 where the workpieces P are provided increases in stages from the central part 32d toward the end part 32e.

[0050] The second buffer body 32 having such a workpiece P has lower rigidity than the first buffer body 31 which does not have a workpiece P. In this embodiment, the workpieces P1 to P5 are arranged in order of increasing (or decreasing) rigidity, but the arrangement order of the workpieces P1 to P5 in the packaging member of this disclosure is not limited to this, and an order suitable for deforming the target part into a desired shape can be appropriately selected.

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

[0052] When multiple target parts 50 in this packaging state are stacked and stored, a load F acts on the first packaging member 10X and target parts 50 due to the weight of the first packaging members 10X and target parts 50 stacked above them. This load F acts on the peripheral edge 52 via the upper box 22 and the second buffer 32X.

[0053] The second buffer body 32X, which has a workpiece P, deforms each workpiece P1 to P5 due to the load F acting on the second buffer body 32X, and the amount of deformation of each workpiece P1 to P5 decreases from P1 to P5. The second buffer body 32X can absorb a portion of the load F by the deformation of each workpiece P1 to P5, and can control the stress acting on the peripheral edge 52 below it. Specifically, when the load F acts on the second buffer body 32X, the first workpiece P1 deforms the most. The amount of deformation of each workpiece P1 to P5 when the load F is applied decreases in stages from the central part 32d to the end part 32e. In other words, the amount of deformation of the second buffer body 32X at each position along the length decreases in stages from the central part 32d to the end part 32e. Therefore, the load Fa acting on the peripheral edge 52 that contacts the central portion 32d is smaller than the load Fb acting on the peripheral edge 52 that contacts 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 that occurs in the peripheral edge 52 when the target part 50 is stored. The first packaging member 10X can easily control the amount of deformation that occurs in the entire area of ​​the peripheral edge 52, including from the center to the end, in the edge direction. Therefore, when the target part 50 is packaged using the first packaging member 10X, deformation that occurs in the peripheral edge 52 of the target part 50 during storage is suppressed. Furthermore, deformation in the center of the peripheral edge 52 of the target part 50 in the edge direction is suppressed.

[0054] [Regarding variations of the second buffer] Figure 8 is a schematic perspective view showing a modified example of the second buffer according to the first embodiment. The second buffer 32X does not necessarily have to include all of the first, second, third, fourth, and fifth workpieces P1, P2, P3, P4, and P5 in the workpiece P, but may include at least one of them, and more preferably two or more. When two or more of the workpieces P1 to P5 are provided, it is preferable that the selected parts be arranged in an order in which the rigidity gradually increases from the central part 32d to the end part 32e.

[0055] Figure 8 illustrates a modified example of the second buffer 32X. The modified second buffer 32X shown in Figure 8 comprises a second workpiece P2, a third workpiece P3, and a fourth workpiece P4. The second buffer 32 shown in Figure 7 comprises two fourth workpieces P4a and P4b. In other words, the modified second buffer 32X shown in Figure 8 has three workpieces P selected from each of the workpieces P1 to P5, and does not have a first workpiece P1 and a fifth workpiece P5.

[0056] The fourth workpiece P4a and the fourth workpiece P4b differ in the length and number of slits that constitute the "sewing blade". The rigidity of the fourth workpiece P4 having the "sewing blade" can be reduced as the proportion of slits to a unit length increases. In the second buffer body 32 shown in Figure 8, the area processed by the fourth workpiece P4a has lower rigidity than the area processed by the fourth workpiece P4b.

[0057] [Regarding a second embodiment of the packaging material of this disclosure] Figure 9 is a schematic perspective exploded view showing a packaging member and a component to be packaged by the packaging member according to the second embodiment of this disclosure. In the following description, the packaging member 10 according to the second embodiment will also be referred to as the second packaging member 10Y.

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

[0059] [Regarding the third buffer] As shown in Figure 9, the second packaging member 10Y comprises four third cushioning bodies 33. The third cushioning bodies 33 in this embodiment are made of corrugated cardboard. The third cushioning body 33 is made by winding a rectangular piece of corrugated cardboard into a cylindrical shape, and providing a V-shaped notch in the center in the axial direction, at which point the cylindrical member is bent into an L-shape. The third cushioning body 33 has a substantially rectangular cross-section perpendicular to the axial direction. In this embodiment, the third cushioning body 33 has a portion where one end and the other end of the corrugated cardboard piece overlap in the winding direction.

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

[0061] [Regarding the fourth buffer] As shown in Figure 9, the second packaging member 10Y comprises four fourth cushioning bodies 34. The fourth cushioning bodies 34 in this embodiment are made of corrugated cardboard. The fourth cushioning body 34 is made by winding a rectangular piece of corrugated 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 fourth cushioning body 34 has a substantially rectangular cross-section perpendicular to the axial direction. In this embodiment, the fourth cushioning body 34 has a portion where one end and the other end of the corrugated cardboard piece overlap in the winding direction.

[0062] The fourth buffer 34 is positioned at multiple corner locations along the side plate 21b of the lower box 21. In this embodiment, one fourth buffer 34 is placed at each of the four corners of the lower box 21 (a total of four). When the target part 50 is packaged using the second packaging member 10Y, the target part 50 housed in the box 20 is contacted from above by the four fourth buffers 34 at each of its four corners 51.

[0063] Since the second packaging member 10Y includes the third buffer 33 and the fourth buffer 34, it can support and protect the entire area around the target part 50. Therefore, the second packaging member 10Y can suppress deformation of the target part 50 not only at the peripheral edge 52 in the first region A1, but also at the corner 51 in the second region A2.

[0064] [Regarding the support state of the target part 50 by the second packaging member 10Y] Figure 10 is a partial schematic diagram showing the support state of the target part by the packaging member according to the second embodiment. As shown in Figure 10, the target part 50 packaged using the second packaging member 10Y is housed inside the box body 20, and the first buffer 31 is in contact with the lower surface of the peripheral edge 52 in the first region A1, and the second buffer 32X is in contact with the upper surface of the peripheral edge 52 in the first region A1. Furthermore, the target part 50 is in contact with the third buffer 33 on the lower surface of the corner 51 in the second region A2, and the fourth buffer 34 is in contact with the upper surface of the corner 51 in the second region A2. When multiple target parts 50 in this packaged state are stacked and stored, a load F acts on the second packaging member 10Y and the target part 50 due to the weight of the second packaging members 10Y and target parts 50 stacked above it. This load F acts on the peripheral edge 52 and corner 51 of the target part 50 via the upper box 22, the second buffer 32X, and the fourth buffer 34.

[0065] When a target part 50 is packaged using the second packaging member 10Y, the load Fa acting on the peripheral edge 52 due to contact with the central part 32d can be made smaller than the load Fb acting on the peripheral edge 52 due to contact with the end part 32e, compared to the load Fa acting on the peripheral edge 52 due to contact with the end part 32e, compared to the load Fa acting on the peripheral edge 52 due to contact with the central part 32d, similar to when packaged using the first packaging member 10X. The second packaging member 10Y, with this configuration, can control the deformation that occurs on the peripheral edge 52 in the first region A1 when the target part 50 is stored. Therefore, when the second packaging member 10Y is used, deformation that occurs on the peripheral edge 52 in the first region A1 is suppressed when the target part 50 is stored. Furthermore, when the second packaging member 10Y is used, deformation that occurs on the corners 51 of the target part 50 is suppressed when the target part 50 is stored.

[0066] [Regarding the second buffer in the second packaging component] Figure 11 is a schematic perspective view showing the arrangement of the second buffer body according to the second embodiment. Figure 12 is a schematic perspective view showing the second buffer body according to the second embodiment. Figures 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 will also be referred to as the second buffer body 32Y. The second buffer body 32Y differs in shape from the second buffer body 32X described earlier. The second packaging member 10Y (see Figure 9) may use the second buffer body 32Y shown in Figures 11 and 12 instead of the second buffer body 32X as the second buffer body 32. The second buffer body 32Y differs from the second buffer body 32X described earlier in that it has an L-shaped form that includes a portion corresponding to the fourth buffer body 34 (see Figure 9) and is divided with the center line C as the boundary. The second buffer 32Y combines the functions of the second buffer 32X shown in Figure 9 and the fourth buffer 34. When the second buffer 32Y is used, the fourth buffer 34 (see Figure 9) is not required.

[0067] The second packaging member 10Y shown in Figure 9 consists of a total of eight components, including a second buffer 32X and a fourth buffer 34, which are placed above the target part 50. In contrast, if the second buffer 32Y shown in Figure 11 is used, the buffer 30 placed above the target part 50 can be composed of only four second buffers 32Y. Therefore, by using the second buffer 32Y shown in Figure 11, the number of components in the packaging member 10 can be reduced, thereby simplifying the packaging work of the target part 50 using the packaging member 10.

[0068] [Regarding the support state of the target component 50 by the packaging material including the second buffer 32Y] Figure 13 is a partially schematic diagram showing the support state of a target part by a packaging member including a second buffer according to the second embodiment. As shown in Figure 13, when the second packaging member 10Y including the second buffer 32Y is used, the target part 50 is housed inside the box body 20, and the first buffer 31 is in contact with the lower surface of the peripheral edge 52 in the first region A1, and the second buffer 32Y is in contact with the upper surfaces of the peripheral edge 52 in the first region A1 and the corner 51 in the second region A2. Furthermore, the target part 50 is in contact with the third buffer 33 on the lower surface of the corner 51 in the second region A2, and the second buffer 32Y is in contact with the upper surface of the corner 51 in the second region A2. When multiple target parts 50 in this packaging state are stacked and stored, a load F acts on the second packaging member 10Y and the target part 50 due to the weight of the second packaging members 10Y and target parts 50 stacked above it. This load F acts on the peripheral edge 52 and corner 51 of the target part 50 via the upper box 22 and the second buffer 32Y.

[0069] The second buffer 32Y has a workpiece P similar to the second buffer 32X described earlier, and each workpiece P1 to P5 deforms due to 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 deformation of each workpiece P1 to P5. For this reason, the load Fa acting on the peripheral edge 52 that contacts the central part 32d is smaller than the load Fb acting on the peripheral edge 52 that contacts the second buffer 32Y on the end 32e side of the central part 32d. The second packaging member 10Y including the second buffer 32Y can control the deformation that occurs on the peripheral edge 52 in the first region A1 when the target part 50 is stored. For this reason, when the target part 50 is packaged using the second packaging member 10Y including the second buffer 32Y, deformation that occurs on the peripheral edge 52 of the target part 50 during storage is suppressed. Furthermore, when the second packaging member 10Y, which includes the second buffer 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 comprises a box body 20 for housing a target part 50 having a peripheral edge 52, and a buffer body 30 arranged at multiple positions along the side plate 21b of the box body 20 and in contact with the peripheral edge 52. The buffer body 30 comprises a first buffer body 31 that contacts the peripheral edge 52 from below, and a second buffer body 32 that contacts it from above. In the packaging member 10 of the above embodiment, the second buffer body 32 has lower rigidity than the first buffer body 31.

[0071] In the above-described packaging member 10, when multiple target parts 50 contained in the packaging member 10 are stacked and stored, and the weight of other target parts 50 acts on the peripheral edge 52, the second buffer 32 is more prone to deformation than the first buffer 31. Therefore, the packaging member 10 of the above embodiment can control the load F acting on the peripheral edge 52 by adjusting the amount of deformation of the second buffer 32 in the longitudinal direction. As a result, the packaging member 10 of the above embodiment can suppress deformation that occurs on the peripheral edge 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 peripheral edges 52 connecting the corners 51, and the box body 20 has a rectangular parallelepiped shape in which the rectangular target part 50 is housed. The first buffer body 31 and the second buffer body 32 are in contact with the peripheral edges 52 in the first region A1 which includes the center of the side of the peripheral edges 52.

[0073] The packaging member 10 with the above configuration can suppress deformation that occurs in the first region A1 of the peripheral edge 52 of the rectangular target part 50 during storage. As a result, the packaging member 10 can suppress deformation in the center of the peripheral edge 52 in the side direction.

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

[0075] The packaging member 10 with the above configuration allows the amount of deformation of the second buffer 32 to be varied at the central portion 32d and the end portion 32e in the longitudinal direction. This makes 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 suppress deformation that occurs in the first region A1 including the center of the edge of the peripheral portion 52 during storage.

[0076] (4) In the packaging member 10 of the above embodiment, the rigidity of the second buffer 32 increases in stages from the central part 32d to the end part 32e.

[0077] The packaging member 10 with the above configuration can gradually change the amount of deformation of the second buffer 32 from the central part 32d to the end part 32e in the longitudinal direction. As a result, the load Fa acting on the peripheral part 52 that contacts the second buffer 32 at the central part 32d can be made smaller than the load Fb acting on the peripheral part 52 that contacts the second buffer 32 on the end part 32e side of the central part 32d. The packaging member 10 of the above embodiment can easily suppress deformation that occurs in the first region A1 including the center of the edge of the peripheral part 52 during storage.

[0078] (5) In the packaging member 10 of the above embodiment, the target part 50 has an opening 53 that is opened in the peripheral edge 52. In the packaging member 10 of the above embodiment, the first buffer 31 and the second buffer 32 are in contact with the peripheral edge 52 outside the opening 53.

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

[0080] (6) In the packaging member 10 of the above embodiment, the second buffer 32 has a workpiece P which includes a first workpiece P1 which is a part cut out of the material constituting the second buffer 32, a second workpiece P2 which has a slit formed along the length direction of the second buffer 32, a third workpiece P3 which has a lead crease formed along the length direction of the second buffer 32, a fourth workpiece P4 which has a perforating blade formed along the length direction of the second buffer 32, and a fifth workpiece P5 which has a creasing line formed along the length direction of the second buffer 32.

[0081] The packaging member 10 with the above configuration allows for the easy creation of a second buffer 32 that has lower rigidity than the first buffer 31. Furthermore, the packaging member 10 with the above configuration allows for the easy creation of a second buffer 32 that has increasing rigidity from the central part 32d towards the end part 32e.

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

[0083] The packaging member 10 with the above configuration makes it easy to create a second buffer 32 that has lower rigidity than the first buffer 31. Furthermore, the packaging member 10 with the above configuration makes it easy to create a second buffer 32 whose rigidity gradually increases from the central part 32d towards the end part 32e.

[0084] (8) In the second packaging member 10Y described above, the buffer 30 further comprises a third buffer 33 that contacts the corner 51 from below and a fourth buffer 34 that contacts the corner 51 from below.

[0085] The packaging member 10 with the above configuration can protect the entire periphery of the target part 50 with the cushioning body 30 while suppressing deformation that occurs at the peripheral edge 52 of the target part 50 during storage.

[0086] Although embodiments have been described above, it should be understood that various modifications to the 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 component 10Y: Second packaging component 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: Peripheral area 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-shaped body (20) capable of housing a target component (50) having a rectangular shape with corners (51) located at the four corners and peripheral edges (52) connecting the corners (51), The box body (20) is arranged at multiple positions along the side plate (21b) and is capable of contacting the peripheral edge (52), A packaging member (10) including, The box (20) has a rectangular parallelepiped shape that can house the rectangular target component (50), The buffer (30) is The peripheral edge (52) includes a first buffer (31) that can contact it from below and a second buffer (32) that can contact it from above. The first buffer (31) and the second buffer (32) are capable of contacting the target component (50) housed in the box (20) at the center of the edge of the peripheral portion (52) and in the region (A1) including the center. At the center of the edge of the peripheral portion (52) and at a position that can contact the region (A1) including the center, the second buffer (32) has lower axial rigidity in the vertical direction compared to the first buffer (31). A packaging member (10) wherein the axial stiffness of the central portion (32d) of the second buffer (32) in the direction parallel to the axial direction is lower than the axial stiffness of the end portion (32e) in the direction parallel to the axial direction.

2. The second buffer (32) is The packaging member (10) according to claim 1, wherein the axial rigidity in the vertical direction increases in stages from the central portion (32d) toward the end portion (32e).

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

4. The second buffer (32) is A first portion (P1) obtained by cutting out a part of the material that constitutes the second buffer (32), Alternatively, a second portion (P2) having a slit formed along the direction parallel to the axial direction of the second buffer (32), Alternatively, a third portion (P3) having lead grooves formed along the direction parallel to the axial direction of the second buffer (32), Alternatively, a fourth portion (P4) having a sewing blade formed along the direction parallel to the axial direction of the second buffer (32), Alternatively, the packaging member (10) according to claim 1 or claim 2, comprising a fifth portion (P5) having scribed lines formed along a direction parallel to the axial direction of the second buffer (32).

5. The second buffer (32) is A first portion (P1) obtained by cutting out a part of the material that constitutes the second buffer (32), A second portion (P2) of the second buffer (32) having a slit formed along a direction parallel to the axial direction, A third portion (P3) of the second buffer (32) having lead grooves formed along a direction parallel to the axial direction, A fourth portion (P4) of the second buffer (32) having a perforating blade formed along a direction parallel to the axial direction, The packaging member (10) according to claim 1 or claim 2, comprising two or more portions of a fifth portion (P5) of the second buffer body (32) having score lines formed along a direction parallel to the axial direction.

6. The buffer (30) is A third buffer (33) that can contact the aforementioned corner (51) from below, The packaging member (10) according to claim 1 or claim 2, further comprising a fourth buffer (34) that can contact the corner (51) from above.

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