Cushioning material for packing, packing material, and packed article
The packaging cushioning material with a holder, support, and hinge design addresses the issue of impact transmission by allowing displacement of support portions to absorb forces, effectively protecting articles within the box.
Patent Information
- Application Number
- JP2023147804
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-09-12
- Publication Date
- 2025-03-25
AI Technical Summary
Existing packaging cushioning materials fail to effectively suppress the impact transmitted to articles when stored in a box, as they allow direct transmission of forces from the packaging to the article.
A packaging cushioning material with a holder portion, holder support portions, and a hinge portion that connects them, allowing the holder support portions to displace when the hinge is folded, thereby absorbing and dissipating impact.
The described solution effectively suppresses the impact transmitted to articles by allowing the packaging cushioning material to absorb and dissipate forces, reducing the risk of damage to the article.
Smart Images

Figure 2025040783000001_ABST
Abstract
Description
[Technical field]
[0001] The present disclosure relates to a packaging cushion for holding an item, a packaging material, and a packaged item. [Background technology]
[0002] For example, Patent Document 1 discloses a packaging cushioning material made by folding a cardboard sheet cut into a predetermined shape in a predetermined manner. An article is stored in a box while being held by the packaging cushioning material. Such packaging cushioning material prevents the article from being displaced inside the box. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2001-348069 A Summary of the Invention [Problem to be solved by the invention]
[0004] However, in the case of the cushioning packaging material described in Patent Document 1, the article is held by the cushioning packaging material so as not to be displaced relative to the material, and therefore, an impact applied to the box body is likely to be transmitted to the article via the cushioning packaging material.
[0005] Therefore, an object of the present disclosure is to suppress the impact transmitted to the items when the items and cushioning packaging material are stored in a box. [Means for solving the problem]
[0006] In order to solve the above-mentioned problems, according to one aspect of the present disclosure, A packaging cushioning material to be stored in a box together with an article, A holder portion for accommodating the article; a holder support portion that supports the holder portion; a hinge portion connecting the holder portion and the holder support portion, The holder portion, the holder support portion, and the hinge portion are integrally molded as one part, The cushioning material for packaging is provided such that, when the cushioning material for packaging is stored in the box body with the hinge portion in a folded state, the holder support portion supports the holder portion via the hinge portion in a displaceable manner.
[0007] According to another aspect of the present disclosure, A box body and A packaging material is provided, comprising the packaging cushioning material.
[0008] Furthermore, according to yet another aspect of the present disclosure, The goods, The packaging cushioning material; A packaged article is provided having a box for storing the article and the packaging cushioning material. Effect of the Invention
[0009] According to the present disclosure, when items and cushioning packaging material are stored in a box, the impact transmitted to the items can be suppressed. [Brief description of the drawings]
[0010] [Figure 1] FIG. 1 is a schematic perspective view of a packaged item including a cushioning material for packaging according to an embodiment of the present disclosure; [Figure 2A] Top perspective view of the cushioning material in the stored state [Figure 2B] Top perspective view of the cushioning material in an unfolded state [Figure 3A] 1 is a bottom perspective view of the cushioning material in a stored state; FIG. [Figure 3B] 1 is a bottom perspective view of the cushioning material in an unfolded state; FIG. [Figure 4A] Front view of the packaging cushioning in the stored state [Figure 4B] Front view of the unfolded packaging cushion [Diagram 5] Top view of packaging cushioning [Figure 6] Bottom view of the packaging cushion [Figure 7] A cross-sectional view of the packaging cushioning material stored in a box together with an item. [Figure 8] Schematic diagram for explaining a hinge portion functioning as a damper [Figure 9] FIG. 13 is a schematic perspective view of a cushioning material for packaging according to another embodiment of the present disclosure; [Figure 10] FIG. 13 is a schematic perspective view of a cushioning material for packaging according to yet another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Hereinafter, the embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed explanation than necessary may be omitted. For example, detailed explanation of already well-known matters or duplicate explanation of substantially the same configuration may be omitted. This is to avoid the following explanation becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.
[0012] The inventor(s) provide the accompanying drawings and the following description so that those skilled in the art can fully understand the present disclosure, and do not intend for them to limit the subject matter described in the claims.
[0013] Hereinafter, a cushioning material for packaging according to an embodiment of the present disclosure will be described with reference to the drawings.
[0014] 1 is a schematic perspective view of a packaged item including a cushioning material according to an embodiment of the present disclosure. Note that the XYZ Cartesian coordinate system shown in the figure is for facilitating understanding of the embodiment of the present disclosure and does not limit the embodiment of the present disclosure. The X-axis direction is the depth direction of the cushioning material, the Y-axis direction is the width direction, and the Z-axis direction is the height direction.
[0015] 1, a packaged item 10 according to the present embodiment includes an item 20 and a box 30 for storing the item 20. In the present embodiment, the item 20 is a substantially cylindrical item such as a camera lens. The box 30 is made of, for example, a paper material and is a rectangular parallelepiped box large enough to store the entire item 20.
[0016] 1, in order to suppress displacement of the item 20 within the box 30 and to suppress propagation of an impact to the item 20 when an impact such as a drop is applied to the box 30, a cushioning packing material 40 is stored within the box 30. That is, the box 30 and the cushioning packing material 40 are packing materials for packing the item 20.
[0017] 2A and 2B are top perspective views of the cushioning material in a stored state and an unfolded state. Also, Figs. 3A and 3B are bottom perspective views of the cushioning material in a stored state and an unfolded state. Furthermore, Figs. 4A and 4B are front views of the cushioning material in a stored state and an unfolded state. Furthermore, Figs. 5 to 6 are top and bottom views of the cushioning material, respectively. And Fig. 7 is a cross-sectional view taken along line AA shown in Fig. 5, showing the cushioning material stored in a box together with an article.
[0018] As shown in Figures 2A to 3B, the cushioning material 40 can be transformed into a stored state shown in Figures 2A and 3A and an expanded state shown in Figures 2B and 3B. The stored state is a state in which the cushioning material 40 is stored in the box 30 as shown in Figure 1. The expanded state is a state outside the box 30.
[0019] In order to be transformed into a stored state or an unfolded state, the packaging cushioning material 40 is made of a deformable material. In the present embodiment, the packaging cushioning material 40 is a pulp molded body. The pulp molded body is a molded body that is completed by dissolving waste paper in water to create a pulp material, dehydrating the pulp material while molding it in a metal mold, and drying the molded body. The pulp molded body is made from waste paper and water and does not use adhesives, so it does not generate toxic gases when incinerated and has a small environmental impact.
[0020] The packaging cushioning material 40 includes a holder portion 42 that houses the article 20, holder support portions 44, 46 that support the holder portion 42, and hinge portions 48, 50 that connect the holder portion 42 and the holder support portions 44, 46. In the case of this embodiment, since the packaging cushioning material 40 is a pulp molded body, the holder portion 42, the holder support portions 44, 46, and the hinge portions 48, 50 are integrally molded as a single component.
[0021] The holder portion 42 of the packaging cushioning material 40 is configured to accommodate the article 20, as shown in Fig. 1 and Fig. 7. In the present embodiment, as shown in Fig. 2, the holder portion 42 includes a bottomed tubular portion 42a that opens in the height direction (Z-axis direction) and accommodates and holds a part of the article 20, and a flange portion 42b that extends outward from the open end of the bottomed tubular portion 42a. Note that an opening may be formed in the bottom portion 42c of the bottomed tubular portion 42a as long as the article 20 does not pass through it.
[0022] In this embodiment, the bottomed tubular portion 42a of the holder portion 42 supports one end of the article 20 in the height direction (Z-axis direction) while holding the article 20 in the depth direction (X-axis direction) and width direction (Y-axis direction). That is, the bottomed tubular portion 42a has a shape that allows the article 20 to be detachably fitted in the height direction. In this embodiment, in order to accommodate the cylindrical article 20, the bottomed tubular portion 42a is also approximately cylindrical.
[0023] The flange portion 42b of the holder portion 42 extends in the depth direction (X-axis direction) and width direction (Y-axis direction) from the open end of the bottomed tubular portion 42a. In the present embodiment, the flange portion 42b has a substantially square shape when viewed in the height direction (Z-axis direction) as shown in Fig. 5. One end of the hinge portions 48, 50 is connected to each of both ends in the width direction of the flange portion 42b.
[0024] The holder support parts 44, 46 of the packaging cushioning material 40 support the holder part 42 via the hinge parts 48, 50, as shown in Fig. 2. In the present embodiment, the holder support parts 44, 46 are substantially L-shaped when viewed in the depth direction (X-axis direction), as shown in Fig. 4A and Fig. 4B. The holder support parts 44, 46 are connected to the other ends of the hinge parts 48, 50, respectively.
[0025] In addition, in the case of this embodiment, the holder support portions 44 and 46 face each other in the width direction (Y axis direction) when viewed in the height direction (Z axis direction).
[0026] As shown in Figures 2B, 3B, and 4B, the hinge portions 48 and 50 connect the holder portion 42 and the holder support portions 44 and 46. The hinge portion 48 connects the holder portion 42 and the holder support portion 44 so that the position and attitude of the holder support portion 44 relative to the holder portion 42 can be changed. The hinge portion 50 connects the holder portion 42 and the holder support portion 46 so that the position and attitude of the holder support portion 46 relative to the holder portion 42 can be changed. In other words, the hinge portions 48 and 50 are portions of the packaging cushioning material 40 that can be reversibly folded and deformed.
[0027] Such hinge portions 48, 50 enable the packaging cushioning material 40 to assume the stored state shown in Figures 2A, 3A, and 4A, and the unfolded state shown in Figures 2B, 3B, and 4B. Specifically, when the hinge portions 48, 50 are folded, the packaging cushioning material 40 is in a stored state in which the holder support portions 44, 46 each face the holder portion 42 in the height direction (Z-axis direction). When the hinge portions 48, 50 are unfolded, the packaging cushioning material 40 is in an unfolded state in which the holder support portions 44, 46 each face the holder portion 42 in the width direction (Y-axis direction).
[0028] In this embodiment, the hinge portions 48, 50 are strip-shaped extending in the depth direction (X-axis direction) and having a C-shaped cross section, as shown in Figures 2B and 3B. Due to this shape, the hinge portions 48, 50 bend along a straight line extending in the depth direction. In this embodiment, the hinge portions 48, 50 bend approximately 90 degrees, as shown in Figures 4A and 4B.
[0029] When the packaging cushioning material 40 is stored in the box body 30 with the hinge parts 48 and 50 folded, the holder support parts 44 and 46 are disposed at positions facing the holder part 42 in the height direction (Z-axis direction) as shown in FIG. 7. Specifically, the holder support parts 44 and 46 face the holder part 42 at one side part in the height direction and support the holder part 42 via the hinge parts 48 and 50 so as to be displaceable in the height direction. At the same time, the holder support parts 44 and 46 contact the box body 30 at the other side part in the height direction. In the case of this embodiment, the holder support parts 44 and 46 are disposed below the holder part 42, seated on the bottom part 30a of the box body 30, and contacted with the inner wall part 30b of the box body 30.
[0030] In the present embodiment, when the packaging cushioning material 40 is in the stored state and the article 20 is not housed in the holder portion 42 (or the article 20 is a lightweight item), the holder support portions 44, 46 do not directly contact the holder portion 42. In addition, in Fig. 4A, a portion of the bottomed tubular portion 42a of the holder portion 42 overlaps the holder support portions 44, 46. However, in reality, this overlapping portion of the bottomed tubular portion 42a does not contact the holder support portions 44, 46 due to the clearance portions 44a, 46a provided in the holder support portions 44, 46 as shown in Fig. 3B.
[0031] On the other hand, when the article 20 is a heavy item, the holder portion 42 bends and comes into contact with the holder support portions 44, 46. That is, the holder support portions 44, 46 directly contact and support the holder portion 42 in a state in which the heavy item 20 is housed. This suppresses excessive displacement of the holder portion 42 in which the heavy item 20 is housed, and suppresses damage to the holder portion 42.
[0032] 7, in the present embodiment, the holder support parts 44, 46 include first opposing surfaces 44b, 46b that face the bottom part 42c and outer peripheral surface 42d of the bottomed tubular part 42a of the holder part 42 when the hinge parts 48, 50 are in the folded state. The first opposing surfaces 44b, 46b include a portion that faces the bottom part 42c in the height direction (Z-axis direction) and a portion that faces the outer peripheral surface 42d in the width direction (Y-axis direction).
[0033] As shown in FIG. 7, the holder support parts 44, 46 include second opposing surfaces 44c, 46c that face the flange part 42b of the holder part 42 in the height direction (Z-axis direction).
[0034] Furthermore, a plurality of protrusions 42e protruding toward the holder support parts 44, 46 are provided on the flange part 42b of the holder part 42 that faces the second opposing surfaces 44c, 46c of the holder support parts 44, 46 when the hinge parts 48, 50 are in the folded state. As shown in Fig. 6, four protrusions 42e are provided on the flange part 42b so as to surround the bottomed tubular part 42a when viewed in the height direction (Z-axis direction).
[0035] When the article 20 is heavy and the holder part 42 flexes, the bottomed tubular part 42a of the holder part 42 comes into contact with and is supported by the first opposing surfaces 44b, 46b of the holder supports 44, 46. Furthermore, when the holder part 42 flexes, the multiple protrusions 42e provided on the flange part 42b of the holder part 42 come into contact with the second opposing surfaces 44c, 46c of the holder supports 44, 46. This prevents the holder part 42 from being excessively displaced, and prevents damage to the holder part 42, such as rupture at the connection between the bottomed tubular part 42a and the flange part 42b.
[0036] In addition, when the distance between the flange portion 42b of the holder portion 42 and the second opposing surfaces 44c, 46c of the holder support portions 44, 46 is small, the multiple protrusions 42e can be omitted. In this case, the flange portion 42b directly contacts the second opposing surfaces 44c, 46c, thereby suppressing excessive displacement of the holder portion 42. Also, instead of the flange portion 42b, the multiple protrusions may be provided on the second opposing surfaces 44c, 46c of the holder support portions 44, 46 so as to protrude toward the flange portion 42b.
[0037] With such a packaging cushioning material 40, an impact (impact including a component in the height direction) applied to the box body 30 substantially in the height direction (Z-axis direction) is unlikely to be transmitted to the item 20 contained in the holder portion 42.
[0038] Specifically, the impact in the height direction (Z-axis direction) is propagated from the box body 30 to the holder support parts 44, 46 of the packaging cushioning material 40 that contacts the box body 30. As shown in FIG. 7, the direct propagation of the impact from the box body 30 to the holder part 42 is suppressed because the holder support parts 44, 46 are present between the box body 30 and the holder part 42.
[0039] Furthermore, the propagation of vibration from the holder support parts 44, 46 to the holder part 42 is suppressed by the hinge parts 48, 50. Specifically, the holder part 42 and the holder support parts 44, 46 are not directly fixed to each other. That is, the holder part 42 is connected to the holder support parts 44, 46 via the hinge parts 48, 50 so as to be displaceable in the height direction (Z-axis direction) relative to the holder support parts 44, 46. Therefore, the holder part 42 is displaced in the height direction relative to the holder support parts 44, 46, so that the vibration propagating from the holder support parts 44, 46 to the holder part 42 can be absorbed. As a result, the impact propagating to the article 20 accommodated in the holder part 42 can be attenuated.
[0040] Furthermore, in this embodiment, the hinge portions 48, 50 function as dampers that attenuate vibrations propagating from the holder support portions 44, 46 to the holder portion 42.
[0041] 8 is a schematic diagram for explaining the hinge portion functioning as a damper. Since the hinge portions 48 and 50 are substantially the same, the reason why the hinge portion 48 functions as a damper will be explained.
[0042] 8, when the hinge portion 48 is in the folded state, if an impact Fz is propagated to the hinge portion 48 in the height direction (Z-axis direction) via the holder support portion 44 (i.e., if the holder support portion 44 is displaced in the height direction), the hinge portion 48 itself is compressively deformed in the height direction. As a result, at least a part of the impact energy is used to deform the hinge portion 48. As a result, the propagation of the impact from the holder support portion 44 to the holder portion 42 is suppressed.
[0043] In addition, in this embodiment, the hinge portion 48 functions as a damper that absorbs impact in the height direction (Z-axis direction) as well as in the width direction (Y-axis direction). When an impact Fy is applied to the box body 30 in the width direction, the holder support portion 44 in contact with the box body 30 is displaced in the width direction. This causes the hinge portion 48 to be compressed and deformed in the width direction, and as a result, the propagation of the impact from the holder support portion 44 to the holder portion 42 is suppressed.
[0044] That is, in this embodiment, the item 20 held in the packaging cushioning material 40 is supported by the box body 30 via dampers in the width direction (Y-axis direction) and height direction (Z-axis direction).
[0045] 1, the packaged item 10 has a packaging cushioning material 60 that houses and holds the other end of the item 20 in the height direction, in addition to the packaging cushioning material 40 that houses and holds one end of the item 20 in the height direction (Z-axis direction). The packaging cushioning material 60 may be the same as the packaging cushioning material 40. Unlike the packaging cushioning material 40, the packaging cushioning material 60 may be something that holds the item 20 so that it cannot be displaced, such as a cap made from a cardboard sheet.
[0046] According to the present embodiment as described above, when the article 20 and the cushioning packaging material 40 are stored in the box 30, the impact transmitted to the article 20 can be suppressed.
[0047] Although the embodiments of the present disclosure have been described above, the embodiments of the present disclosure are not limited to these.
[0048] For example, in the case of the cushioning material 40 according to the embodiment described above, the two holder support portions 44, 46 are connected to the holder portion 42 via the hinge portions 48, 50. However, the embodiment of the present disclosure is not limited to this.
[0049] Fig. 9 is a schematic perspective view of a cushioning material for packaging according to another embodiment of the present disclosure, and Fig. 10 is a schematic perspective view of a cushioning material for packaging according to still another embodiment of the present disclosure.
[0050] 9, in a packaging cushioning material 140 according to another embodiment, one substantially L-shaped holder support part 144 is connected to a flange part 142b of a holder part 142 that houses an article 20 via a hinge part 148. The holder support part 144 supports a bottomed tubular part 142a of the holder part 142 that houses the article 20.
[0051] 10, in a packaging cushioning material 240 according to yet another embodiment, four substantially L-shaped holder support parts 244, 246, 252, 254 are connected to a rectangular flange part 242b of a holder part 242 that accommodates an article 20 via hinge parts 248, 250, 256, 258. The holder support parts 244, 246 face each other in the width direction (Y-axis direction), and the holder support parts 252, 254 face each other in the depth direction (X-axis direction). The four holder support parts 244, 246, 252, 254 support a bottomed tubular part 242a of the holder part 242 that accommodates the article 20.
[0052] In the above embodiment, the cushioning material 40 is a pulp molded body. However, the embodiment of the present disclosure is not limited to this. The cushioning material may be made of a material that is deformable to form a hinge portion. For example, the cushioning material may be made of a plastic material.
[0053] Furthermore, in the above-described embodiment, the hinge portions 48, 50 are strip-shaped with a C-shaped cross section as shown in Fig. 2B and Fig. 4A. However, the embodiment of the present disclosure is not limited thereto. For example, the hinge portions may be thin-walled portions made by forming grooves in the surface of a plate-shaped cushioning material.
[0054] 1, the cushioning material 40 is disposed below the article 20 extending in the height direction (Z-axis direction). However, the embodiment of the present disclosure is not limited thereto. For example, when the article is stored in a box in a horizontally laid state, the cushioning material may be stored in the box so as to be aligned horizontally with respect to the parts.
[0055] In other words, the packaging cushioning material according to an embodiment of the present disclosure is, in a broad sense, a packaging cushioning material that is stored in a box together with an article, and comprises a holder portion that accommodates the article, a holder support portion that supports the holder portion, and a hinge portion that connects the holder portion and the holder support portion, wherein the holder portion, holder support portion, and hinge portion are integrally molded as a single component, and when the packaging cushioning material is stored in the box with the hinge portion in a folded state, the holder support portion supports the holder portion via the hinge portion in a displaceable manner.
[0056] Furthermore, a packaging material according to another embodiment of the present disclosure broadly comprises a box body and a packaging cushioning material stored in the box body together with an article, the packaging cushioning material comprising a holder portion for accommodating the article, a holder support portion for supporting the holder portion, and a hinge portion for connecting the holder portion and the holder support portion, the holder portion, the holder support portion, and the hinge portion being integrally molded as a single component, and when the packaging cushioning material is stored in the box body with the hinge portion in a folded state, the holder support portion supports the holder portion via the hinge portion in a displaceable manner.
[0057] Furthermore, a packaged item according to yet another embodiment of the present disclosure broadly comprises an item, a packaging cushioning material that holds the item, and a box body that stores the item and the packaging cushioning material, wherein the packaging cushioning material comprises a holder portion that contains the item, a holder support portion that supports the holder portion, and a hinge portion that connects the holder portion and the holder support portion, wherein the holder portion, holder support portion, and hinge portion are integrally molded as a single component, and when the packaging cushioning material is stored in the box body with the hinge portion in a folded state, the holder support portion supports the holder portion via the hinge portion in a displaceable manner.
[0058] As described above, the above-mentioned embodiment has been described as an example of the technology in the present disclosure. For this purpose, drawings and detailed description are provided. Therefore, among the components described in the drawings and detailed description, not only components essential for solving the problem but also components that are not essential for solving the problem in order to illustrate the above-mentioned technology may be included. Therefore, the fact that these non-essential components are described in the drawings or detailed description should not be used to immediately determine that these non-essential components are essential.
[0059] Furthermore, since the above-described embodiments are intended to illustrate the technology in the present disclosure, various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims or their equivalents. [Industrial Applicability]
[0060] The present disclosure is applicable when packaging cushioning materials are stored in a box together with an article. [Explanation of symbols]
[0061] 20 Goods 30 box body 40 Packaging Cushioning Material 42 Holder part 44 Holder support part 46 Holder support part 48 Hinge part 50 Hinge part
Claims
1. A packaging cushioning material to be stored in a box together with an article, A holder portion for accommodating the article; a holder support portion that supports the holder portion; a hinge portion connecting the holder portion and the holder support portion, The holder portion, the holder support portion, and the hinge portion are integrally molded as one part, When the cushioning material for packaging is stored in the box body with the hinge portion in a folded state, the holder support portion supports the holder portion via the hinge portion in a displaceable manner.
2. When the cushioning material for packaging is stored in the box body with the hinge portion in a folded state, the holder is supported by the holder support portion via the hinge portion so as to be displaceable in a first direction, 2. The packaging cushioning material according to claim 1, wherein when the hinge portion is folded and the packaging cushioning material is stored in the box body, the holder support portion faces the holder portion at one side portion in the first direction and contacts the box body at the other side portion in the first direction.
3. the holder portion includes a cylindrical portion that opens in the first direction and stores the article, and a flange portion that extends outward from an open end of the cylindrical portion, The cushioning material for packaging according to claim 1 , wherein the hinge portion connects the flange portion of the holder portion and the holder support portion.
4. 4. The cushioning material for packaging according to claim 3, wherein the holder support portion includes a first opposing surface that faces a bottom portion and an outer peripheral surface of the cylindrical portion of the holder portion when the hinge portion is in a folded state.
5. the holder support portion includes a second opposing surface that faces the flange portion of the holder portion when the hinge portion is in a folded state, 4. The cushioning material for packaging according to claim 3, wherein one of the flange portion and the second opposing surface is provided with a convex portion protruding toward the other.
6. The cushioning material for packaging according to claim 1 , wherein the hinge portion bends at an angle of 90 degrees.
7. The cushioning material for packaging according to claim 1 , wherein the hinge portion is in the form of a strip having a C-shaped cross section.
8. the holder support includes a first holder support and a second holder support, the hinge portion includes a first hinge portion connecting the holder portion and the first holder support portion, and a second hinge portion connecting the holder portion and the second holder support portion, The packaging cushioning material according to claim 1 , wherein, when viewed in the first direction, the first holder support portion and the second holder support portion face each other in a second direction that intersects with the first direction.
9. 2. The cushioning material for packaging according to claim 1, which is a pulp molded body.
10. A box body and A packaging material comprising the cushioning material for packaging according to claim 1.
11. The goods, The packaging cushioning material according to claim 1 , A packaged item having a box for storing the item and the packaging cushioning material.
Citation Information
Patent Citations
Corrugated cardboard cushioning member
JP2001348069A