Cushioning material

Abstract

To provide a cushioning material capable of suppressing the occurrence of peeling in a plane part and a side face part even when an impact is applied to a gluing part between the plane part and the side face part.SOLUTION: A cushioning material 10 has a flat surface portion 11 flatly provided on a product 90, a side surface portion 12 provided on a side face of the flat surface portion, and a connection portion 13 that connects the flat surface portion and the side surface portion in a separated state.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a cushioning material. [Background technology]

[0002] Conventionally, various products, including printing machines, have been packaged in a state where they are protected by cushioning material. There are various materials and types of cushioning material for transport packaging, but cardboard cushions are sometimes used for environmental reasons (for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-137354 Summary of the Invention [Problem to be solved by the invention]

[0004] A cardboard cushion generally has a flat surface that is provided on the top or bottom surface of the product, and side surfaces that are provided on the sides of the flat surface. The flat surface and the side surfaces are fixed to each other by adhesive.

[0005] In such cardboard cushions, if an impact is applied to the glued area between the flat and side surfaces, peeling may occur at the boundary between the flat and side surfaces. If peeling occurs at the boundary between the flat and side surfaces, the cushioning material will remain shrunk, creating a gap between the product and the cushioning material, causing the cushioning material to shift from its intended position and no longer function as a cushion.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide a cushioning material that can prevent peeling at the boundary between the flat portion and the side portion even if an impact is applied to the glued portion between the flat portion and the side portion. [Means for solving the problem]

[0007] The above object of the present invention can be achieved by the following means.

[0008] (1) A cushioning material that is placed on the top or bottom of a product to protect the product, a planar portion provided on the product; a side surface portion provided on a side surface of the planar portion; a connecting portion that connects the planar portion and the side portion while keeping them spaced apart.

[0009] (2) The cushioning material according to (1), wherein the connecting portion has a U-shape with an open top surface.

[0010] (3) The cushioning material according to (1) or (2), wherein the connecting portion has an overlapping portion formed by folding at least two sheets along the surface direction of the flat portion.

[0011] (4) The cushioning material according to any one of (1) to (3), wherein the connecting portion includes a backing that stands up in the vertical direction.

[0012] (5) A cushioning material that is placed on the top or bottom of a product to protect the product, a planar portion provided on the product; a side surface portion provided on a side surface of the planar portion, The cushioning material has a glued portion at the boundary between the flat portion and the side portion, which is formed at a location that is offset from the contact portion where the edge portion of the product contacts.

[0013] (6) The cushioning material according to (5), wherein the flat portion and the side portion are glued together so that the edge portion abuts against the side portion.

[0014] (7) The side surface portion includes a cavity portion, The cushioning material according to (5) or (6), wherein the flat surface portion and the side surface portion are glued together so that the edge portion abuts against the hollow portion. [Effects of the Invention]

[0015] According to the cushioning material configured as in (1), the connecting portion connects the flat portion and the side portion while keeping them apart, so that even if an impact is applied to the glued portion at the boundary between the flat portion and the side portion, peeling can be prevented.

[0016] Furthermore, according to the cushioning material configured as in (5), the glued portion at the boundary between the flat portion and the side portion is formed at a location that is offset from the contact portion where the edge portion of the product contacts, so that peeling can be prevented even if an impact is applied to the glued portion at the boundary between the flat portion and the side portion. [Brief explanation of the drawings]

[0017] [Figure 1] FIG. 1 is a front perspective view showing how a cushioning material according to an embodiment of the present invention protects a product. [Figure 2] FIG. 1 is a rear perspective view showing how a cushioning material according to an embodiment of the present invention protects a product. [Figure 3] FIG. 10 is a front view showing how a cushioning material according to a comparative example of the first embodiment protects a product. [Figure 4] 10 is a plan view showing a state in which a force is applied to the cushioning material according to the comparative example when the product is tilted during transportation. FIG. [Figure 5] FIG. 2 is a front perspective view showing the cushioning material according to the first embodiment. [Figure 6] FIG. 2 is a front view showing the cushioning material according to the first embodiment. [Figure 7] FIG. 10 is a front perspective view showing a cushioning material according to a first modified example of the first embodiment. [Figure 8] FIG. 10 is a front view showing a cushioning material according to a first modified example of the first embodiment. [Figure 9] FIG. 10 is a front perspective view showing a cushioning material according to a second modified example of the first embodiment. [Figure 10]FIG. 10 is a front view showing a cushioning material according to a second modified example of the first embodiment. [Figure 11] FIG. 4 is a front perspective view showing a cushioning material according to a comparative example of the first embodiment. [Figure 12] FIG. 10 is a front perspective view showing a cushioning material according to a second embodiment. [Figure 13] FIG. 13 is an enlarged view showing part A in FIG. [Figure 14] FIG. 10 is a front view showing a cushioning material according to a second embodiment. [Figure 15] FIG. 11 is a front perspective view showing a cushioning material according to a comparative example of the second embodiment. [Figure 16] FIG. 16 is an enlarged view showing part A in FIG. [Figure 17] FIG. 10 is a front view showing a cushioning material according to a comparative example of the second embodiment. [Figure 18] FIG. 10 is a front perspective view showing a cushioning material according to a first modified example of the second embodiment. [Figure 19] FIG. 10 is a front perspective view showing a cushioning material according to a comparative example of Modification 1 of the second embodiment. [Figure 20] FIG. 10 is a front view showing a cushioning material according to a comparative example of Modification 1 of the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] First Embodiment A first embodiment of the present invention will be described with reference to Figures 1 to 6. In the description of the drawings, the same elements are given the same reference numerals, and duplicate explanations will be omitted. The dimensional proportions in the drawings have been exaggerated for the sake of explanation, and may differ from the actual proportions.

[0019] FIG. 1 is a front perspective view showing how a cushioning material 10 according to an embodiment of the present invention protects a product 90. FIG. 2 is a rear perspective view showing how a cushioning material 10 according to an embodiment of the present invention protects a product. FIG. 3 is a front view showing how a cushioning material 910 according to a comparative example protects a product 90. FIG. 4 is a plan view showing how a force is applied to the cushioning material 910 according to the comparative example when the product is tilted during transportation. FIG. 5 is a front perspective view showing the cushioning material 10 according to the first embodiment. FIG. 6 is a front view showing the cushioning material 10 according to the first embodiment.

[0020] 1 and 2, the cushioning material 10 according to the first embodiment is placed on the underside of the product 90 to protect the product 90. As will be described later, the cushioning material 20 according to the second embodiment is placed on the upper side of the product 90 to protect the product 90. The product 90 protected by the cushioning materials 10 and 20 is not particularly limited, but may be, for example, a printing machine.

[0021] In the following description, when viewing the product 90 from the front (as shown in FIGS. 3 and 4), the horizontal direction is referred to as the X direction, the depth direction is referred to as the Y direction, and the height direction is referred to as the Z direction.

[0022] The configuration of the cushioning material 10 according to the first embodiment will be described with reference to Figures 5 and 6. As shown in Figures 1, 2, 5, and 6, the cushioning material 10 is placed on the underside of a product 90 to protect the product 90.

[0023] As shown in Figures 5 and 6, the cushioning material 10 has a planar portion 11 that is provided in a planar shape (XY plane) on the underside of the product 90, a side portion 12 that is provided on the side of the planar portion 11 along the Z direction, and a connecting portion 13 that connects the planar portion 11 and the side portion 12 while they are spaced apart.

[0024] 5 and 6, the flat portion 11 has a structure in which layers are stacked in the X direction when viewed from the front. Note that the structure of the flat portion 11 is not limited to the structure described above.

[0025] 5 and 6, the side surface portion 12 has a structure in which the layers are stacked in the X direction when viewed from the front. Note that the structure of the side surface portion 12 is not limited to the structure described above.

[0026] In the first embodiment, the connecting portion 13 has a U-shape with an open upper surface, as shown in Figures 5 and 6. Note that the connecting portion 13 may also have a U-shape.

[0027] Here, the configuration of a cushioning material 910 according to a comparative example of the first embodiment will be described with reference to Figures 3, 4, and 11. Furthermore, with reference to Figures 3, 4, and 11, a mechanism will be described in which, when an impact is applied to the side of product 90 during transportation, causing product 90 to tilt, a force is applied to cushioning material 910 according to the comparative example, causing peeling at the boundary between flat portion 11 and side portion 12 of cushioning material 910.

[0028] 11, the cushioning material 910 according to the comparative example has a flat portion 11 provided in a planar shape (XY plane) on the bottom surface of the product 90, and a side portion 12 provided along the Z direction on the side of the flat portion 11. In the cushioning material 910 according to the comparative example, as shown in FIG. 11, the flat portion 11 and the side portion 12 are fixed to each other by gluing so that they are adjacent to each other without any space between them.

[0029] When the product 90 is tilted against the cushioning material 910 configured in this manner, peeling occurs at the boundary between the flat surface portion 11 and the side surface portion 12, as shown by the arrow in FIG.

[0030] In contrast, in the cushioning material 10 according to the first embodiment, the flat surface portion 11 and the side surface portion 12 are connected in a U-shape with a gap provided between them. Therefore, when the product 90 is tilted (see the arrow in FIG. 6 ), the side surface portion 12 tilts and the gap in the connecting portion 13 functions as a relief, thereby preventing the boundary between the flat surface portion 11 and the side surface portion 12 from peeling off.

[0031] <Buffer material 110 according to modified example 1 of the first embodiment> Next, the configuration of the cushioning material 110 according to the first modification of the first embodiment will be described with reference to Fig. 7 and Fig. 8. As shown in Fig. 7 and Fig. 8, the cushioning material 110 is disposed on the underside of the product 90 to protect the product 90.

[0032] 7 and 8, the cushioning material 110 has a flat portion 11 provided in a planar shape (XY plane) on the underside of the product 90, a side portion 12 provided along the Z direction on the side of the flat portion 11, and a connecting portion 113 that connects the flat portion 11 and the side portion 12 while they are spaced apart. The flat portion 11 and the side portion 12 have the same configuration as the flat portion 11 and the side portion 12 of the cushioning material 10 according to the first embodiment described above, and therefore a description thereof will be omitted.

[0033] In the first modification of the first embodiment, as shown in Figures 7 and 8, the connecting portion 113 includes an overlapping portion 114 that is folded in two along the surface direction of the flat portion 11 (the left-right direction in Figure 8). The right end surface of the overlapping portion 114 is glued and fixed to the left end surface of the flat portion 11, and the left end surface of the overlapping portion 114 is glued and fixed to the right end surface of the side surface portion 12. By providing a gap between the flat portion 11 and the side surface portion 12 in this way and connecting them by the overlapping portion 114, when the product 90 is tilted (see the arrow in Figure 8), the side surface portion 12 tilts and the overlapping portion 114 functions as a relief, making it possible to prevent the flat portion 11 and the side surface portion 12 from peeling off.

[0034] <Buffer material 210 according to modified example 2 of first embodiment> Next, the configuration of a cushioning material 210 according to Modification 2 of the first embodiment will be described with reference to Figures 9 and 10. As shown in Figures 9 and 10, the cushioning material 210 is placed on the underside of the product 90 to protect the product 90.

[0035] 9 and 10, the cushioning material 210 has a flat portion 11 provided in a planar shape (XY plane) on the underside of the product 90, a side portion 12 provided along the Z direction on the side of the flat portion 11, and a connecting portion 213 that connects the flat portion 11 and the side portion 12 while they are spaced apart. The flat portion 11 and the side portion 12 have the same configuration as the flat portion 11 and the side portion 12 of the cushioning material 10 according to the first embodiment described above, and therefore a description thereof will be omitted.

[0036] 9 and 10 , in the second modification of the first embodiment, the connecting portion 213 includes a first extending portion 214 and a second extending portion 215 that are configured in an L-shape when viewed from the Z direction, and a backing 216 that is fixed to the first extending portion 214 and stands up in the Z direction. According to this configuration, by using the first extending portion 214 and the backing 216 to separate the flat portion 11 and the side portion 12, a relief is created for the backing 216 to twist, and peeling at the boundary between the flat portion 11 and the side portion 12 can be suppressed.

[0037] <Buffer material 20 according to the second embodiment> Next, the configuration of the cushioning material 20 according to the second embodiment will be described with reference to Figures 12 to 14. As shown in Figures 1, 2, and 12 to 14, the cushioning material 20 according to the second embodiment is placed on the top surface of a product 90 to protect the product 90.

[0038] As shown in Figures 12 to 14, the cushioning material 20 has a flat portion 21 that is provided flat (in the XY plane) on the top surface of the product 90, and a side portion 22 that is provided on the side of the flat portion 21 along the Z direction.

[0039] 12 to 14, the flat portion 21 has a structure in which layers are stacked in the Z direction when viewed from the front. Note that the structure of the flat portion 21 is not limited to the structure described above.

[0040] 12 to 14, the side surface portion 22 has a structure in which the portions are stacked in the X direction when viewed from the front. Note that the structure of the side surface portion 22 is not limited to the structure described above.

[0041] As shown in Figures 12 to 14, in the cushioning material 20 of the second embodiment, the glued portion 23 at the boundary between the flat portion 21 and the side portion 22 is formed at a location shifted in the Z direction (more specifically, a location shifted upward in the Z direction) from the abutment portion P where the edge portion of the product 90 abuts.

[0042] Here, the configuration of a cushioning material 920 according to a comparative example of the second embodiment will be described with reference to Figures 3, 4, and 15 to 17. Also, with reference to Figures 3, 4, and 15 to 17, the mechanism by which peeling occurs at the boundary 923 between the flat portion 921 and the side portion 922 of the cushioning material 920 when an impact is applied to the side of the product 90 during transportation and the product 90 tilts will be described.

[0043] As shown in FIGS. 15 to 17 , a cushioning material 920 according to a comparative example of the second embodiment has a flat portion 921 that is provided in a planar shape (XY plane) on the top surface of a product 90, and a side portion 922 that is provided on a side of the flat portion 921 along the Z direction. In the cushioning material 920 according to the comparative example, as shown in FIGS. 15 to 17 , a boundary 923 between the flat portion 921 and the side portion 922 is positioned at a location that substantially coincides with a contact portion P with which an edge portion of the product 90 abuts. Therefore, the contact portion P abuts against the boundary 923, and the flat portion 921 and the side portion 922 peel off due to pressure. Furthermore, as shown in FIG. 17 , the side portion 922 shrinks overall, resulting in a larger gap between the product 90 and the side portion 922.

[0044] In contrast, in the cushioning material 20 according to the second embodiment, the glued portion 23 at the boundary between the flat portion 21 and the side portion 22 is formed at a location offset in the Z direction from the abutment portion P with which the edge portion of the product 90 abuts (more specifically, at a location offset upward in the Z direction). Therefore, when the product 90 is tilted (see the arrow in FIG. 14 ), the abutment portion P of the product 90 abuts against the side portion 22 of the cushioning material 20. This prevents the flat portion 21 and the side portion 22 from peeling off. Furthermore, the increased amount of glued portion enhances the resistance to peeling. As a result, the gap between the product 90 and the side portion 22 after impact is kept small, allowing the posture of the product 90 to be maintained.

[0045] <Buffer material 120 according to modified example 1 of the second embodiment> Next, a cushioning material 120 according to a first modification of the second embodiment will be described. As shown in Fig. 18, the cushioning material 120 according to the first modification of the second embodiment has a flat portion 121 provided in a planar shape (XY plane) on the upper surface of the product 90, and a side portion 122 provided on the side of the flat portion 121. The flat portion 121 has a stacked configuration along the Z direction when viewed from the front. The side portion 122 has a cylindrical shape.

[0046] As shown in Figure 18, the glued portion 123 at the boundary between the flat portion 121 and the side portion 122 is formed at a location shifted in the Z direction (more specifically, a location shifted upward in the Z direction) from the abutment portion P where the edge portion of the product 90 abuts.

[0047] Here, the configuration of a buffer material 820 according to a comparative example of the first modified example of the second embodiment will be described with reference to FIGS.

[0048] As shown in FIGS. 19 and 20 , a cushioning material 820 according to a comparative example of Modification 1 of the second embodiment has a flat portion 821 that is provided in a planar shape (XY plane) on the upper surface of the product 90, and a side portion 822 that is provided on a side of the flat portion 821 along the Z direction. The flat portion 821 is configured to be stacked along the Z direction when viewed from the front. The side portion 822 has a cylindrical shape. As shown in FIGS. 19 and 20 , in the cushioning material 820 according to the comparative example, a boundary 823 between the flat portion 821 and the side portion 822 is positioned at a location that substantially coincides with a contact portion P that contacts an edge portion of the product 90. Therefore, the contact portion P contacts the boundary 823, and the pressure causes the flat portion 821 and the side portion 822 to peel off. When the flat portion 821 and the side portion 822 peel off, the side portion 822 is deformed into a diamond shape as shown in FIG. 20 , reducing the cushioning properties.

[0049] In contrast, in the cushioning material 120 according to Modification 1 of the second embodiment, the glued portion 123 at the boundary between the flat portion 121 and the side portion 122 is formed at a location offset in the Z direction from the abutment portion P with which the edge portion of the product 90 abuts (more specifically, a location offset upward in the Z direction). Therefore, when the product 90 is tilted, the abutment portion P of the product 90 abuts against the side portion 122 of the cushioning material 120. As a result, the center of the side portion 122 deforms, and the glued portion is less likely to deform. Therefore, peeling of the flat portion 121 and the side portion 122 can be suppressed.

[0050] The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims. [Explanation of symbols]

[0051] 10, 20, 110, 120, 210 buffer material, 11, 21, 121 plane part, 12, 22, 122 side part, 13, 113, 213 connection part, 114 overlapping part, 216 Mount.

Claims

1. A cushioning material that is placed on the top or bottom of a product to protect the product, a planar portion provided on the product; a side surface portion provided on a side surface of the planar portion; a connecting portion that connects the planar portion and the side portion while keeping them spaced apart.

2. The cushioning material according to claim 1 , wherein the connecting portion has a U-shape with an open upper surface.

3. The cushioning material according to claim 1 , wherein the connecting portion comprises an overlapping portion formed by folding at least two sheets along a surface direction of the flat portion.

4. The cushioning material according to claim 1 , wherein the connecting portion comprises a backing that stands up in the vertical direction.

5. A cushioning material that is placed on the top or bottom of a product to protect the product, a planar portion provided on the product; a side surface portion provided on a side surface of the planar portion, A cushioning material in which the glued portion at the boundary between the flat portion and the side portion is positioned at a location offset from the abutment portion where the edge portion of the product abuts.

6. The cushioning material according to claim 5 , wherein the flat portion and the side portion are glued together so that the edge portion abuts against the side portion.

7. The side surface portion includes a cavity portion, The cushioning material according to claim 5 , wherein the flat surface portion and the side surface portion are glued together so that the edge portion abuts against the cavity portion.

Images