JP7044173B2 - Cushioning material and packing body - Google Patents

Description

The present invention relates to a cushioning material and a package.

The following Patent Document 1 discloses a cushioning member which is disposed around an article and cushions an impact applied to the article.

Japanese Real Kaihei 6-76130 Gazette

There may be a second article, such as an accessory, that is used with the article to be packaged. In the prior art described above, the inclusion of such a second article is not particularly considered.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a cushioning material and a packing body which are advantageous for bundling a second article with respect to the packaged article. ..

The cushioning material of the present invention is a cushioning material that cushions an impact on a packaged article, and has an outer wall, a first cylinder structure connected to the outer wall and having a first direction parallel to the outer wall as an axial direction, and an outer wall. The first cylinder structure has a polygonal cross-sectional shape, and the second cylinder structure is provided with a second cylinder structure which is connected to and has a first direction as an axial direction and is adjacent to the first cylinder structure. It has a polygonal cross-sectional shape, the first cylinder structure protrudes from the outer wall in the second direction perpendicular to the outer wall by the first length, and the second cylinder structure is shorter than the first length from the outer wall. Protruding in the second direction by the second length, the first cylinder structure has a storage space and an adjacent space adjacent to the storage space in the first direction, and the first cylinder structure is the second cylinder. A partition wall located between the storage space and the adjacent space, the first wall having a portion facing the structure, the second wall having an opening to be the entrance of the storage space, and the partition wall connected to the edge of the opening by a bending line. The first wall has a through hole penetrating from the adjacent space to the outside of the first cylinder structure, and an extension portion extending from the wall forming the second cylinder structure to the outside of the second cylinder structure penetrates. It enters the adjacent space through a hole, and the partition wall can contact the extension.
Further, the packaging body of the present invention includes the cushioning material, an exterior material covering the article and the cushioning material, and a second article stored in the storage space of the cushioning material.

According to the present invention, the provision of the storage space in the cushioning material is advantageous in including the second article together with the article to be packaged.

FIG. 3 is an exploded perspective view showing a package body provided with a cushioning material according to the first embodiment. It is a development view of the cushioning material by Embodiment 1. FIG. It is a perspective view of the cushioning material according to Embodiment 1. FIG. It is a perspective view of the cushioning material according to Embodiment 1. FIG. It is a side view of the cushioning material by Embodiment 1. FIG. FIG. 5 is an enlarged view of a part of the cross-sectional view cut along the VI-VI line in FIG. It is a development view of the cushioning material according to Embodiment 2. It is a development view of the cushioning material according to Embodiment 3. It is a perspective view of the cushioning material according to Embodiment 4. FIG. It is a development view of the cushioning material according to Embodiment 4.

Hereinafter, embodiments will be described with reference to the drawings. Common or corresponding elements in the drawings are designated by the same reference numerals to simplify or omit duplicate descriptions. The present disclosure may include any combination of configurable configurations among the configurations described in each of the following embodiments.

Embodiment 1.
FIG. 1 is an exploded perspective view showing a package body provided with a cushioning material according to the first embodiment. As shown in FIG. 1, the packing body 100 includes a cushioning material 1 according to the first embodiment, an article 110 to be packaged, an outer box 120, a bottom interior material 130, and an accessory 140. The article 110 may be a product such as an electric device, or may be a component constituting a part of the product. The shape of the article 110 may be a rectangular parallelepiped as shown in the figure, or may be a shape other than the rectangular parallelepiped.

The cushioning material 1, the article 110, the bottom interior material 130, and the accessory 140 are housed in the outer box 120. The outer box 120 in the present embodiment is a container made of corrugated cardboard. The outer box 120 is an example of an outer material that covers the cushioning material 1 and the article 110. As a modification, the exterior material may be, for example, a wooden container, a steel container, a plastic container, or the like.

The cushioning material 1 is arranged between the inner wall of the outer box 120 and the article 110. The cushioning material 1 has a function of cushioning the impact on the article 110 stored in the outer box 120. The cushioning material 1 is suitable to be arranged in a region including a corner portion of the outer shape of the article 110. In the illustrated example, the cushioning material 1 is arranged in the region including the corner portion between the side surface and the upper surface of the article 110. The cushioning material 1 is in contact with a part of the side surface and a part of the upper surface of the article 110.

In the illustrated example, the cushioning material 1 is arranged on all four sides of the article 110. That is, four cushioning materials 1 are arranged with respect to the article 110. Not limited to such a configuration, the package 100 of the present embodiment may be provided with at least one cushioning material 1. For example, the cushioning material 1 may be arranged on one of the four sides of the article 110, and another cushioning material may be arranged on the remaining three sides.

The accessory 140 is an article attached to the article 110. The accessory 140 is smaller than the article 110. The accessory 140 corresponds to the second article. The cushioning material 1 has a storage space 31 inside thereof. The accessory 140 is stored in the storage space 31. In the illustrated example, the accessory 140 is stored in the storage space 31 of the cushioning material 1 of the four cushioning materials 1. The accessory 140 may also be stored in the storage space 31 of the other cushioning material 1.

The bottom interior material 130 is a mat-like member laid on the bottom of the outer box 120. The bottom interior material 130 is in contact with the bottom surface of the article 110. The bottom interior material 130 cushions the impact of the article 110 on the bottom surface.

Next, an example of the procedure for assembling the package 100 will be described below. The cushioning material 1 is attached to the article 110. The article 110 to which the cushioning material 1 is attached is placed on the bottom interior material 130. Put them in the outer box 120. The upper flaps 121, 122, 123, 124 provided in the outer box 120 are sequentially bent and sealed with tape or the like. The state in which the packing body 100 is assembled is hereinafter referred to as "packing state".

In the present embodiment, the accessory 140 can be stored in the storage space 31 of the cushioning material 1. Since the accessory 140 is inside the cushioning material 1, it is protected from impact. Further, since the accessory 140 can be reliably prevented from moving to another position in the outer box 120 during transportation, the accessory 140 can be reliably prevented from being damaged. In this way, the accessory 140 included in the article 110 can be reliably protected without using other cushioning materials. In the packed state, the upper flaps 121, 122, 123, 124 cover the upper surface of the accessory 140, so that the upper surface of the accessory 140 is also reliably protected.

FIG. 2 is a developed view of the cushioning material 1 according to the first embodiment. The cushioning material 1 of the present embodiment can be made from one sheet shown in FIG. This sheet may be, for example, a paper corrugated cardboard sheet or a resin corrugated cardboard sheet. As shown in FIG. 2, the sheet in which the cushioning material 1 is developed has a rectangular outer shape. The cushioning material 1 includes an outer wall 2, a first wall 33, a second wall 34, a partition wall 35A, a partition wall 35B, a third wall 36, a fourth wall 37, a fifth wall 41, and a sixth wall. It has a 42, a seventh wall 43, an eighth wall 44, an extension portion 45A, and an extension portion 45B. Each of these elements has a flat plate shape. Each of the extensions 45A and 45B has a rectangular shape. Each of the extensions 45A and 45B is formed by being partially separated from the sheet by cut lines along three sides of the rectangle. Each of the extensions 45A and 45B is connected to the sixth wall 42 on the remaining side of the rectangle.

The first wall 33 is formed with a through hole 331A, a through hole 331B, a hole 332A, and a hole 332B. The opening 341 is formed by removing a part of the second wall 34. In the developed view of FIG. 2, the partition wall 35A and the partition wall 35B extend from the second wall 34 to the inside of the opening 341. The narrow portion 333A is formed between the through hole 331A and the hole 332A. The narrow portion 333A separates the hole 332A from the through hole 331A. The narrow portion 333B is formed between the through hole 331B and the hole 332B. The narrow portion 333B separates the hole 332B from the through hole 331B.

Each of the partition wall 35A, the extension portion 45A, the through hole 331A, and the hole 332A and each of the partition wall 35B, the extension portion 45B, the through hole 331B, and the hole 332B have a mirror image symmetric relationship and have the same configuration as each other. .. Therefore, in the following, only one of these elements may be described and the other description may be omitted.

3 and 4 are perspective views of the cushioning material 1 according to the first embodiment. As shown in these figures, the cushioning material 1 includes a first cylinder structure 3 having a polygonal cross-sectional shape and a second cylinder structure 4 having a polygonal cross-sectional shape. The first cylinder structure 3 is formed by a first wall 33, a second wall 34, a third wall 36, and a fourth wall 37. The first wall 33, the second wall 34, the third wall 36, and the fourth wall 37 correspond to the side surfaces when the outer shape of the first cylinder structure 3 is regarded as a prism. The second cylinder structure 4 is formed by a fifth wall 41, a sixth wall 42, a seventh wall 43, and an eighth wall 44. The fifth wall 41, the sixth wall 42, the seventh wall 43, and the eighth wall 44 correspond to the side surfaces when the outer shape of the second cylinder structure 4 is regarded as a prism.

Hereinafter, the axial direction of the first cylinder structure 3 is referred to as the X direction. The X direction is parallel to the plane of the outer wall 2. The X direction corresponds to the first direction. The axial direction of the second cylinder structure 4 is the same as the axial direction of the first cylinder structure 3. That is, the second cylinder structure 4 has the X direction as the axial direction. For convenience, the direction from the front to the back in FIG. 3 is the + X direction, and the direction from the back to the front is the −X direction. The second cylinder structure 4 is adjacent to the first cylinder structure 3.

The first cylinder structure 3 has, for example, a rectangular cross-sectional shape. As a modification, the cross-sectional shape of the first cylinder structure 3 may be a trapezoid, a triangle, a pentagon, or the like. The second tubular structure 4 has, for example, a rectangular cross-sectional shape. As a modification, the cross-sectional shape of the second cylinder structure 4 may be a trapezoid, a triangle, a pentagon, or the like.

Hereinafter, the direction perpendicular to the plane of the outer wall 2 is referred to as the Y direction. The Y direction is perpendicular to the X direction. For convenience, the direction from right to left in FIG. 3 is the + Y direction, and the direction from left to right is the −Y direction. The first cylinder structure 3 protrudes from the outer wall 2 in the + Y direction by the first length L1. The second cylinder structure 4 projects from the outer wall 2 in the + Y direction by a second length L2 shorter than the first length L1. The first length L1 corresponds to the maximum protrusion length of the first tubular structure 3 from the outer surface of the outer wall 2. The second length L2 corresponds to the maximum protrusion length of the second tubular structure 4 from the outer surface of the outer wall 2. In the present embodiment, a step having a height corresponding to the length obtained by subtracting the second length L2 from the first length L1 is formed between the first cylinder structure 3 and the second cylinder structure 4. There is.

The Z direction is a direction perpendicular to both the X direction and the Y direction. For convenience, the upper direction in FIG. 3 is the + Z direction, and the lower direction is the −Z direction. The first cylinder structure 3 is located in the + Z direction with respect to the second cylinder structure 4.

The first cylinder structure 3 is connected to the outer wall 2. In the illustrated example, the first cylinder structure 3 is connected to the outer wall 2 by connecting the second wall 34 to the outer wall 2 by a bending line 51 parallel to the X direction. The second wall 34 is arranged perpendicular to the outer wall 2. The first wall 33 is arranged perpendicular to the outer wall 2. That is, the first wall 33 is arranged parallel to the second wall 34. A part of the first wall 33 faces the second cylinder structure 4. In the example of the packed state of FIG. 1, the other part of the first wall 33 is in contact with the upper surface of the article 110.

The third wall 36 is connected to the first wall 33 by a bending line 52 parallel to the X direction. The third wall 36 overlaps the inner surface side of the outer wall 2. The third wall 36 is arranged parallel to the outer wall 2. The fourth wall 37 is between the first wall 33 and the second wall 34. The fourth wall 37 is connected to the second wall 34 by a bending line 53 parallel to the X direction, and is connected to the first wall 33 by a bending line 54 parallel to the X direction. The fourth wall 37 is arranged parallel to the outer wall 2. Depending on the shape of the article 110, at least a part of the fourth wall 37 may be in contact with the article 110 in the packed state.

In the present embodiment, the provision of the third wall 36 is more advantageous in reliably maintaining the shape of the first cylinder structure 3. However, the third wall 36 may be omitted.

The second cylinder structure 4 is connected to the outer wall 2. In the illustrated example, the eighth wall 44 is connected to the outer wall 2 by a bending line 55 parallel to the X direction, so that the second cylinder structure 4 is connected to the outer wall 2. The fifth wall 41 faces the first wall 33. The fifth wall 41 is arranged perpendicular to the outer wall 2. The fifth wall 41 may be in contact with the first wall 33, or there may be some gap between the fifth wall 41 and the first wall 33.

The sixth wall 42 is between the fifth wall 41 and the eighth wall 44. The sixth wall 42 is connected to the fifth wall 41 by a bending line 57 parallel to the X direction, and is connected to the eighth wall 44 by a bending line 56 parallel to the X direction. The sixth wall 42 is located on the opposite side of the outer wall 2. The sixth wall 42 is arranged parallel to the outer wall 2. In the example of the packed state of FIG. 1, the sixth wall 42 is in contact with the side surface of the article 110.

The seventh wall 43 is connected to the fifth wall 41 by a bending line 58 parallel to the X direction. The seventh wall 43 overlaps the inner surface side of the outer wall 2. The seventh wall 43 is arranged parallel to the outer wall 2. In the present embodiment, the provision of the seventh wall 43 is more advantageous in reliably maintaining the shape of the second cylinder structure 4. However, the seventh wall 43 may be omitted.

A storage space 31, an adjacent space 32A, and an adjacent space 32B are formed inside the first cylinder structure 3. As shown in FIG. 3, the opening 341 formed in the second wall 34 corresponds to the entrance of the storage space 31. The accessory 140 can be put in and out of the storage space 31 from the opening 341. In the present embodiment, the opening 341 faces in the + Z direction.

The adjacent space 32A and the adjacent space 32B are adjacent to the storage space 31 in the X direction. There is a storage space 31 between the adjacent space 32A and the adjacent space 32B. The adjacent space 32A and the adjacent space 32B are surrounded by the first wall 33, the second wall 34, the third wall 36, and the fourth wall 37. The adjacent space 32B in the present embodiment corresponds to the second adjacent space.

As shown in FIG. 3, the partition wall 35A is connected to the edge of the opening 341 by a bending line 61. The partition wall 35A is located between the storage space 31 and the adjacent space 32A. By providing the partition wall 35A, the movement of the accessory 140 stored in the storage space 31 can be suppressed, so that the accessory 140 can be more reliably prevented from being damaged. Further, it is possible to surely prevent the accessory 140 from moving to the adjacent space 32A.

The partition wall 35B is connected to the edge of the opening 341 by a bending wire 62. The partition wall 35B is located between the storage space 31 and the adjacent space 32B. By providing the partition wall 35B, the movement of the accessory 140 stored in the storage space 31 can be suppressed, so that the accessory 140 can be more reliably prevented from being damaged. Further, it is possible to surely prevent the accessory 140 from moving to the adjacent space 32B.

In the illustrated example, the planes of the partition walls 35A and 35B are perpendicular to the X direction. As a modification, the planes of the partition walls 35A and 35B may be inclined with respect to the X direction. In the illustrated example, the bending lines 61 and 62 are parallel to the Y direction. As a modification, the bending lines 61 and 62 may be inclined with respect to the Y direction.

As shown in FIG. 4, each of the through hole 331A and the through hole 331B has a shape with the X direction as the longitudinal direction. Each of the holes 332A and 332B has a shape with the Y direction as the longitudinal direction.

FIG. 5 is a side view of the cushioning material 1 according to the first embodiment. FIG. 5 corresponds to a view seen from the X direction. As shown in FIG. 5, the through hole 331A penetrates from the adjacent space 32A to the outside of the first cylinder structure 3. The extension portion 45A extends from the sixth wall 42 forming the second cylinder structure 4 to the outside of the second cylinder structure 4. The extension portion 45A projects in the + Z direction. At least a part of the extension portion 45A enters the adjacent space 32A through the through hole 331A. The frictional force between the through hole 331A and the extension 45A prevents the extension 45A from coming out of the through hole 331A. As a result, the shapes of both the first cylinder structure 3 and the second cylinder structure 4 can be reliably maintained.

FIG. 6 is an enlarged view of a part of the cross-sectional view cut along the VI-VI line in FIG. FIG. 6 corresponds to a view cut in the XZ plane corresponding to the surface of the sixth wall 42. As shown in FIG. 6, the extension portion 45A of the portion entering the adjacent space 32A is adjacent to the partition wall 35A. The partition wall 35A can come into contact with the extension portion 45A. In the illustrated example, when an external force in the + X direction is not acting on the partition wall 35A, there is a slight gap 200 between the partition wall 35A and the extension portion 45A, and the partition wall 35A is not in contact with the extension portion 45A. When an external force in the + X direction acts on the partition wall 35A, the partition wall 35A is deformed or the position of the partition wall 35A is displaced, and the partition wall 35A comes into contact with the extension portion 45A.

When the accessory 140 stored in the storage space 31 is pressed against the partition wall 35A by vibration, gravity, inertial force, etc. during transportation, an external force in the + X direction may act on the partition wall 35A. At that time, when the deformed or misaligned partition wall 35A comes into contact with the extension portion 45A, the partition wall 35A is pushed back by the extension portion 45A. Therefore, the extension portion 45A prevents the partition wall 35A from being further deformed or displaced. As a result, the movement of the accessory 140 stored in the storage space 31 can be reliably suppressed, so that the accessory 140 is reliably prevented from being damaged or the accessory 140 is reliably prevented from moving to the adjacent space 32A. can.

The configuration is not limited to the one shown in the drawing, and the partition wall 35A may be configured to be in constant contact with the extension portion 45A even when no external force is applied to the partition wall 35A.

In the present embodiment, the Y direction corresponds to the width direction of the partition wall 35A. As shown in FIG. 5, in the present embodiment, the position where the extension portion 45A is in contact with the partition wall 35A is a position close to the center in the width direction of the partition wall 35A. From the viewpoint of more reliably preventing deformation and misalignment of the partition wall 35A, it is desirable that the extension portion 45A is arranged so as to be in contact with the extension portion 45A as close as possible to the center in the width direction of the partition wall 35A. However, even if the position where the extension portion 45A is in contact with the partition wall 35A is deviated from the center in the width direction of the partition wall 35A, it is possible to sufficiently prevent deformation and misalignment of the partition wall 35A.

In the present embodiment, the plane of the extension portion 45A in the adjacent space 32A is perpendicular to the Y direction. As a result, the plane of the partition wall 35A is perpendicular to the plane of the extension portion 45A in the adjacent space 32A. As a result, the following effects can be obtained. It is possible to more reliably prevent the extension portion 45A from being deformed so as to fall when the extension portion 45A receives pressure from the partition wall 35A. Therefore, the deformation of the partition wall 35A can be prevented more reliably.

As shown in FIG. 6, in the present embodiment, the tip end portion of the partition wall 35A is inserted into the hole 332A formed in the first wall 33 facing the second wall 34. As a result, the following effects can be obtained. When an external force in the + X direction acts on the partition wall 35A, deformation and misalignment of the partition wall 35A can be prevented more reliably. Further, when the cushioning material 1 is assembled, the partition wall 35A can be easily positioned at an appropriate position. On the other hand, assuming that there is no hole 332A, after assembling the cushioning material 1, the partition wall 35A may rotate back in the −X direction due to the elasticity of the portion bent by the bending line 61.

Although not shown, the configurations of the partition wall 35B, the extension portion 45B, the through hole 331B, and the hole 332B are the same as described above. In the partition wall 35B of the present embodiment, the partition wall 35B, the extension portion 45B, and the through hole 331B correspond to the second partition wall, the second extension portion, and the second through hole, respectively. The cushioning material according to the present disclosure may not have a second partition wall, a second extension portion, and a second through hole.

As shown in FIG. 3, in the present embodiment, the storage space 31 is surrounded by the first wall 33, the third wall 36, the fourth wall 37, the partition wall 35A, and the partition wall 35B. That is, the storage space 31 is surrounded by walls on five of the six surfaces except the opening 341. This is more advantageous in reliably protecting the accessory 140.

As shown in FIG. 5, in the present embodiment, the extension portion 45A is connected to the corner between the fifth wall 41 and the sixth wall 42. That is, the extension portion 45A is connected to the corner formed by the bending line 57. The extension portion 45A extends from this corner in a direction parallel to the plane of the sixth wall 42. Further, the extension portion 45A is located inside the first cylinder structure 3 as a whole. That is, almost the entire extension portion 45A is located inside the first cylinder structure 3. According to the present embodiment, it is possible to more reliably prevent the corner between the fifth wall 41 and the sixth wall 42 from being separated from the first cylinder structure 3. As a result, the shape of the second cylinder structure 4 can be more reliably maintained.

When the cushioning material 1 is made of a corrugated cardboard sheet, the direction in which the flute grooves and ridges of the corrugated board sheet forming the first wall 33, the second wall 34, the fifth wall 41, and the eighth wall 44 extend. Is desirable to be in the Y direction. As a result, the following effects can be obtained. The strength of the corrugated cardboard sheet against an external force acting parallel to the plane of the corrugated cardboard sheet is such that the strength against the external force in the direction in which the groove and the ridge of the flute extends is higher than the strength against the external force in the direction orthogonal to the groove and the ridge. When a force acts on the cushioning material 1 from the article 110, a pressure in the Y direction may act on the first wall 33, the second wall 34, the fifth wall 41, and the eighth wall 44. By setting the direction of the flute as described above, the strength against such pressure can be increased, so that the shapes of the first cylinder structure 3 and the second cylinder structure 4 can be more reliably maintained.

In the example of FIG. 1, the cushioning material 1 is arranged so that the + Z direction faces vertically upward. In this case, since the opening 341 is located on the upper surface, it is easy to put the accessory 140 in and out of the storage space 31.

However, the orientation of the cushioning material 1 and the positional relationship with the article 110 in the packed state are not limited to the example of FIG. For example, the cushioning material 1 is arranged so that the + Y direction faces vertically upward, a part of the first wall 33 is in contact with the side surface of the article 110, and the sixth wall 42 is in contact with the bottom surface of the article 110. May be used.

As a modification to the present embodiment, the opening 341 which is the entrance of the storage space 31 may be configured to face the + Y direction. For example, a second wall 34 may be formed in place of the fourth wall 37 at the position of the fourth wall 37 in the present embodiment so that the second wall 34 is perpendicular to the Y direction. That is, the second wall 34 may be arranged perpendicular to the first wall 33. This modification is suitable for arranging the cushioning material 1 so that the + Y direction faces vertically upward. In this modification, in such an arrangement, the opening 341 facing in the + Y direction faces vertically upward, so that it is easy to insert and remove the accessory 140 into and out of the storage space 31.

Embodiment 2.
Next, the second embodiment will be described with reference to FIG. 7, but the differences from the first embodiment described above will be mainly described, and the same or corresponding parts will be simplified or omitted. FIG. 7 is a developed view of the cushioning material 1A according to the second embodiment. The cushioning material 1A of the present embodiment is different from the first embodiment in that it does not include the narrow portions 333A and 333B. In the present embodiment, the through hole 331A and the hole 332A are connected to each other because the narrow portion 333A is not formed. The through hole 331A and the hole 332A have a T-shape as a whole. Similarly, since the narrow portion 333B is not formed, the through hole 331B and the hole 332B are connected to each other. The through hole 331B and the hole 332B have a T-shape as a whole. As in the present embodiment, the through hole 331A and the hole 332A may be connected, or the through hole 331B and the hole 332B may be connected.

Embodiment 3.
Next, the third embodiment will be described with reference to FIG. 8, but the differences from the first embodiment described above will be mainly described, and the same or corresponding parts will be simplified or omitted. FIG. 8 is a developed view of the cushioning material 1B according to the third embodiment. In this embodiment, the partition wall 35A has a tip portion 351A. The width of the tip portion 351A is narrower than the width of the partition wall 35A other than the tip portion 351A. The tip portion 351A is arranged at the center of the partition wall 35A in the width direction. The hole 332A into which the tip portion 351A is inserted is formed to have a length shorter than that of the first embodiment according to the dimensions of the tip portion 351A. Similarly, the partition wall 35B has a tip portion 351B. The width of the tip portion 351B is narrower than the width of the partition wall 35B other than the tip portion 351B. The tip portion 351B is arranged at the center of the partition wall 35B in the width direction. The hole 332B into which the tip portion 351B is inserted is formed to have a length shorter than that of the first embodiment according to the dimensions of the tip portion 351B. According to the present embodiment, when assembling, the operation of inserting the tip portions 351A and 351B into the holes 332A and 332B can be performed with a lighter force.

Embodiment 4.
Next, the fourth embodiment will be described with reference to FIGS. 9 and 10, but the differences from the above-described first embodiment will be mainly described, and the same or corresponding parts will be simplified or explained. Omit. FIG. 9 is a perspective view of the cushioning material 1C according to the fourth embodiment. FIG. 10 is a developed view of the cushioning material 1C according to the fourth embodiment.

As shown in FIG. 9, in the present embodiment, the distance L3 from the outer wall 2 to the through hole 331A is longer than the second length L2. The distance L3 is, for example, the distance along the Y direction between the outer surface of the outer wall 2 and the center position of the through hole 331A.

The extension portion 45A has a first portion 451 located outside the first cylinder structure 3 and a second portion 452 located inside the first cylinder structure 3. The first portion 451 is connected to the sixth wall 42 by a bending line 63 parallel to the X direction. The first portion 451 extends in the + Y direction from the corner between the fifth wall 41 and the sixth wall 42. The first portion 451 overlaps the outer surface of the first wall 33. The second portion 452 is connected to the first portion 451 by a bending line 64 parallel to the X direction. The second portion 452 enters the adjacent space 32A through the through hole 331A. The second portion 452 protrudes from the position of the bending line 64 in the + Z direction.

The first length L1 in the present embodiment is longer than that in the first embodiment. In this case, assuming that the distance from the outer wall 2 to the through hole 331A is the same as the second length L2 and the extension portion 45A protrudes from the position of the sixth wall 42 in the + Z direction as it is, the extension portion 45A The position in contact with the partition wall 35A is a position significantly deviated from the center in the width direction of the partition wall 35A. In contrast, in the present embodiment, by making the distance L3 longer than the second length L2, the position where the second portion 452 of the extension portion 45A contacts the partition wall 35A is set at the center in the width direction of the partition wall 35A. It is possible to make it a close position. As a result, it becomes more advantageous in surely preventing deformation and misalignment of the partition wall 35A.

The extension portion 45B has the same configuration as the extension portion 45A described above. Further, the cushioning material 1C of the present embodiment can be made from one sheet shown in FIG.

1,1A, 1B, 1C Cushioning material 2 Outer wall 3 First cylinder structure 4 Second cylinder structure 31 Storage space 32A, 32B Adjacent space 33 First wall 34 Second wall 35A, 35B Partition 36 Third wall 37 Fourth wall 41 Fifth wall 42 Sixth wall 43 Seventh wall 44 Eighth wall 45A, 45B Extension 51,52,53,54,55,56,57,58 Bending line 61,62,63,64 Folding line 100 Package 110 Article 120 Exterior box 121, 122, 123, 124 Top flap 130 Bottom interior material 140 Accessories 200 Gap 331A, 331B Through hole 332A, 332B Hole 333A, 333B Narrow part 341 Opening 351A, 351B Tip part 451 First part 452 Second part

Claims (8)

A cushioning material that cushions the impact on the packaged goods.
With the outer wall
A first cylinder structure connected to the outer wall and having a first direction parallel to the outer wall as an axial direction.
A second cylinder structure connected to the outer wall, with the first direction as the axial direction, and adjacent to the first cylinder structure.
Equipped with
The first cylinder structure has a polygonal cross-sectional shape and has a polygonal cross-sectional shape.
The second cylinder structure has a polygonal cross-sectional shape and has a polygonal cross-sectional shape.
The first cylinder structure protrudes from the outer wall in a second direction perpendicular to the outer wall by the first length.
The second cylinder structure protrudes from the outer wall in the second direction by a second length shorter than the first length.
The first cylinder structure has a storage space inside thereof and an adjacent space adjacent to the storage space in the first direction.
The first cylinder structure is formed between a first wall having a portion facing the second cylinder structure, a second wall having an opening serving as an entrance to the storage space, and the storage space and the adjacent space. Yes, with a bulkhead connected to the edge of the opening by a fold line,
The first wall has a through hole penetrating from the adjacent space to the outside of the first cylinder structure.
An extension portion extending from the wall forming the second cylinder structure to the outside of the second cylinder structure enters the adjacent space through the through hole.
A cushioning material in which the partition wall is in contact with the extension portion. The cushioning material according to claim 1, wherein the plane of the partition wall is perpendicular to the plane of the extension portion in the adjacent space. The first cylinder structure has holes formed in the wall facing the second wall.
The cushioning material according to claim 1 or 2, wherein the end portion of the partition wall is inserted into the hole. The first cylinder structure has a second adjacent space adjacent to the storage space in the first direction inside the first cylinder structure.
There is the storage space between the adjacent space and the second adjacent space.
The first cylinder structure has a second partition wall between the storage space and the second adjacent space and connected to the edge of the opening by a bending line.
The first wall has a second through hole penetrating from the second adjacent space to the outside of the first tubular structure.
A second extension extending outward from the wall forming the second cylinder structure enters the second adjacent space through the second through hole.
The cushioning material according to any one of claims 1 to 3, wherein the second partition wall is in contact with the second extension portion. The first cylinder structure has a third wall connected to the first wall by a bending line parallel to the first direction and a fourth wall connected to the second wall by a bending line parallel to the first direction. Has a wall and
The cushioning material according to claim 4, wherein the storage space is surrounded by the first wall, the third wall, the fourth wall, the partition wall, and the second partition wall. The cushioning material according to any one of claims 1 to 5, wherein the distance from the outer wall to the through hole is longer than the second length. The second cylinder structure includes a fifth wall facing the first wall and a sixth wall connected to the fifth wall by a bending line parallel to the first direction and located on the opposite side of the outer wall. Have,
The cushioning material according to any one of claims 1 to 6, wherein the extension portion is connected to a corner between the fifth wall and the sixth wall. The cushioning material according to any one of claims 1 to 7.
An exterior material that covers the article and the cushioning material, and
The second article stored in the storage space of the cushioning material and
Packing body equipped with.

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