JP2018012540A - Packaging material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging material which can prevent damage of a packaged object in movement time, with a simple structure.SOLUTION: A packaging material has a first side part packaging material 6A and a second side part packaging material 6B for covering a side surface of a packaged object OBJ. Each of the first side part packaging material 6A and the second side part packaging material 6B has a cylinder structure whose axial direction is a first direction, and an extension part which extends to an inner face side of the cylinder structure without a gap, from an end part of the cylinder structure in the first direction. The first side part packaging material 6A and the second side part packaging material 6B are adjacent to each other in the first direction, and the extension parts of the first side part packaging material 6A and second side part packaging material 6B are adjacent to each other.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a packaging material.

  When packaging a refrigerator, generally a packaging material made of cardboard is used. Since the refrigerator is a large heavy object, when moving it, an operator may press the knee against the side of the packaging material. In that case, there is a possibility that the portion where the knee is pressed is deformed inward and hits the side surface of the refrigerator which is the packaged body. This may cause damage such as scratches and dents on the outer surface of the refrigerator.

  Patent document 1 is disclosing the technique which arrange | positions a honeycomb-shaped buffer between a packaging material and a refrigerator, in order to absorb the impact from the outside.

Japanese Utility Model Publication No. 2-343277

  In the case of the technique disclosed in Patent Document 1, it is necessary to separately create and arrange a honeycomb-shaped shock absorber. This leads to an increase in material costs and work man-hours.

  One object of the present invention is to provide a packaging material capable of preventing damage during movement of a packaged body with a simple structure.

  In one aspect of the present invention, a packaging material is provided. A packaging material is provided with the 1st side part packaging material and 2nd side part packaging material which cover the side surface of a to-be-packaged body. Each of the first side packaging material and the second side packaging material has a cylindrical structure whose axial direction is the first direction, and an extension that extends from the end of the cylindrical structure in the first direction to the inner surface side of the cylindrical structure without any breaks. Part. The first side packaging material and the second side packaging material are adjacent to each other in the first direction, and the extension portion of the first side packaging material and the extension portion of the second side packaging material are adjacent to each other. Yes.

  According to the packaging material of the present invention, each of the first side packaging material and the second side packaging material has an extension that extends from the end of the cylindrical structure to the inner surface side of the cylindrical structure without a break. The first side packaging material and the second side packaging material are adjacent to each other, and the extension of the first side packaging material and the extension of the second side packaging material are adjacent to each other. Thereby, it becomes possible to prevent the damage at the time of the movement of the package body with a simple structure.

It is a disassembled perspective view of the packaging material which concerns on the 1st Embodiment of this invention. It is a completion figure of the packaging material which concerns on 1st Embodiment. It is a perspective view which shows the structure of the side part packaging material which concerns on 1st Embodiment. It is sectional drawing which shows the cross-section along line AA in FIG. It is a figure for demonstrating the formation method of the extension part in 1st Embodiment. It is a figure for demonstrating the formation method of the extension part in 1st Embodiment. It is the schematic which shows the structure of the buffer part of the packaging material which concerns on 1st Embodiment. It is a figure for demonstrating the effect of 1st Embodiment. It is a figure for demonstrating the effect of 1st Embodiment. It is a perspective view which shows the structure of the side part packaging material which concerns on the 2nd Embodiment of this invention. It is the schematic which shows the structure of the buffer part of the packaging material which concerns on the 3rd Embodiment of this invention. It is a perspective view which shows the structure of the side part packaging material which concerns on the 4th Embodiment of this invention. It is a perspective view which shows the structure of the side part packaging material which concerns on 4th Embodiment. It is the schematic which shows the structure of the buffer part of the packaging material which concerns on 4th Embodiment. It is a disassembled perspective view of the packaging material which concerns on the 5th Embodiment of this invention. It is a completion figure of the packaging material which concerns on 5th Embodiment.

  Embodiments of the present invention will be described with reference to the accompanying drawings.

<First Embodiment>
FIG. 1 is an exploded perspective view of a packaging material 1 according to the first embodiment of the present invention. FIG. 2 is a completed view of the packaging material 1. The packaging material 1 is used for packaging the packaged body OBJ. The packaged body OBJ has, for example, a rectangular parallelepiped outer shape. A refrigerator is illustrated as such a packaged body OBJ. In the following description, the height direction of the packaged body OBJ is the upward direction.

  The packaging material 1 includes a plurality of members. In the present embodiment, the packaging material 1 includes a lower cushioning material 2, a lower packaging material 3, an upper cushioning material 4, an upper packaging material 5, a first side packaging material 6A, and a second side packaging material 6B. Yes.

  The lower cushioning material 2 contacts the lower surface and part of the side surface of the packaged body OBJ. The lower packaging material 3 is in contact with the lower surface of the lower cushioning material 2. The upper cushioning material 4 contacts a part of the upper surface and side surface of the packaged body OBJ. The upper packaging material 5 contacts the upper surface of the upper cushioning material 4.

  The first side packaging material 6A and the second side packaging material 6B are members independent of each other. Both the first side packaging material 6A and the second side packaging material 6B cover the side surface of the package OBJ. At this time, the first side packaging material 6A and the second side packaging material 6B are arranged so as to be aligned in the height direction of the packaged body OBJ. In FIG.1 and FIG.2, 6 A of 1st side part packaging materials cover the downward side among the side surfaces of the to-be-packaged body OBJ. On the other hand, the 2nd side part packaging material 6B covers the upper side among the side surfaces of the to-be-packaged body OBJ. After the assembly of the packaging material 1, as shown in FIG. 2, the first side packaging material 6A and the second side packaging material 6B are adjacent to each other in the height direction of the packaged body OBJ. At this time, 6A of 1st side part packaging materials and 6B of 2nd side part packaging materials cover the whole side surface of the to-be-packaged body OBJ as a whole. The material of the first side packaging material 6A and the second side packaging material 6B is exemplified by paper materials such as cardboard.

  As shown in FIG. 2, the assembled packaging material 1 is bound by a plurality of bands 8. More specifically, each band 8 has an outer peripheral surface including the upper surface of the upper packaging material 5, the outer surface of the first side packaging material 6A, the outer surface of the second side packaging material 6B, and the lower surface of the lower packaging material 3. Is wound around.

  In the following description, when it is not necessary to distinguish the first side packaging material 6A and the second side packaging material 6B from each other, each of the first side packaging material 6A and the second side packaging material 6B is simply It is called “side packaging material 6”.

  FIG. 3 is a perspective view showing the structure of the side packaging material 6 according to the present embodiment. The side packaging material 6 has a cylindrical structure 7 whose axial direction is the Z direction. When the packaged body OBJ has a rectangular parallelepiped outer shape, the cylindrical structure 7 has a rectangular cylindrical structure. In this case, the shape of the cylindrical structure 7 in the plane orthogonal to the Z direction is a rectangle.

  Further, the side packaging material 6 has an extension 10. The extension 10 extends from the end 7E of the cylindrical structure 7 in the Z direction to the inner surface side of the cylindrical structure 7. The longitudinal direction of the extension 10 is a direction orthogonal to the Z direction along the end 7E. In the example shown in FIG. 3, the shape of the cylindrical structure 7 on the surface orthogonal to the Z direction is a rectangle, and extensions 10 are formed on all four sides of the rectangle.

  FIG. 4 is a cross-sectional view showing a cross-sectional structure taken along line AA in FIG. The Z direction is the axial direction of the cylindrical structure 7 of the side packaging material 6. For convenience, it is assumed that the upper direction in FIG. 4 is the + Z direction and the lower direction is the −Z direction. The X direction is the longitudinal direction of the extension 10. The Y direction is a direction orthogonal to the X direction and the Z direction, and is a direction from the end 7E of the cylindrical structure 7 toward the central axis of the cylindrical structure 7. For convenience, it is assumed that the left direction in FIG. 4 is the + Y direction and the right direction is the −Y direction.

  As shown in FIG. 4, the extension 10 extends from the end 7 </ b> E of the cylindrical structure 7 to the inner surface 7 </ b> S side of the cylindrical structure 7 without a break. The extension portion 10 has the same material as that of the cylindrical structure 7 and is connected to the end portion 7E of the cylindrical structure 7 without a break. In other words, no adhesive or the like is interposed between the extension 10 and the cylindrical structure 7.

  In the example shown in FIG. 4, the extension 10 includes a first flat plate 11, a second flat plate 12, a third flat plate 13, and a fourth flat plate 14. Each of the first flat plate 11, the second flat plate 12, the third flat plate 13, and the fourth flat plate 14 has a flat plate shape whose longitudinal direction is the X direction.

  The first flat plate 11 is connected to the end 7E of the cylindrical structure 7 without any breaks. More specifically, the first flat plate 11 extends in the + Y direction from the end 7E without a break. The angle formed between the first flat plate 11 and the side surface of the cylindrical structure 7 is 90 degrees.

  The second flat plate 12 is provided such that the first flat plate 11 is sandwiched between the end portion 7E and the second flat plate 12. More specifically, the second flat plate 12 is continuously connected to the end of the first flat plate 11. The second flat plate 12 extends from the end of the first flat plate 11 in the −Z direction so as to face the inner surface 7S of the cylindrical structure 7. The angle formed by the second flat plate 12 and the first flat plate 11 is 90 degrees.

  The third flat plate 13 is provided such that the second flat plate 12 is sandwiched between the first flat plate 11 and the third flat plate 13. More specifically, the third flat plate 13 is continuously connected to the end of the second flat plate 12. The third flat plate 13 extends from the end of the second flat plate 12 in the −Y direction so as to face the first flat plate 11. The angle formed by the third flat plate 13 and the second flat plate 12 is 90 degrees.

  The fourth flat plate 14 is provided such that the third flat plate 13 is sandwiched between the second flat plate 12 and the fourth flat plate 14. More specifically, the fourth flat plate 14 is continuously connected to the end of the third flat plate 13. The fourth flat plate 14 extends from the end of the third flat plate 13 in the + Z direction so as to face the second flat plate 12. The angle formed by the fourth flat plate 14 and the third flat plate 13 is 90 degrees. Further, the fourth flat plate 14 is in contact with the inner surface 7S of the cylindrical structure 7.

  The first flat plate 11, the second flat plate 12, the third flat plate 13, and the fourth flat plate 14 form a rectangular tube structure whose longitudinal direction is the X direction. The rectangular tube structure is the extension 10 in the present embodiment. The shape of the extension 10 in the YZ plane orthogonal to the X direction is a rectangle. Such a rectangular tube structure is strong and hardly deforms against an external force.

  With reference to FIG.5 and FIG.6, an example of the formation method of the extension part 10 shown by FIG. 4 is demonstrated. FIG. 5 shows a state in which the first flat plate 11, the second flat plate 12, the third flat plate 13, and the fourth flat plate 14 are developed. As shown in FIG. 5, the extension portion 10 including the first flat plate 11, the second flat plate 12, the third flat plate 13, and the fourth flat plate 14 is not formed as a member different from the cylindrical structure 7. Instead, it is formed in advance as a part of the side packaging material 6. That is, the extension portion 10 is made of the same material as that of the cylindrical structure 7 and extends from the end portion 7E of the cylindrical structure 7 without a break. No adhesive or the like is interposed between the extension portion 10 and the end portion 7E of the cylindrical structure 7.

  A fold line 20 is provided between the end 7 </ b> E of the cylindrical structure 7 and the first flat plate 11. A fold line 21 is provided between the first flat plate 11 and the second flat plate 12. A fold line 22 is provided between the second flat plate 12 and the third flat plate 13. A crease 23 is provided between the third flat plate 13 and the fourth flat plate 14. A structure shown in FIG. 6 is obtained by bending the extension portion 10 to the inner surface side of the cylindrical structure 7 at the fold lines 21, 22, and 23. Further, the structure shown in FIGS. 3 and 4 is obtained by bending the extension portion 10 to the inner surface side of the cylindrical structure 7 at the fold 20.

  As a result, even in the state shown in FIGS. 3 and 4, the extension 10 extends from the end 7 </ b> E of the cylindrical structure 7 without a break. No adhesive or the like is interposed between the extension portion 10 and the end portion 7E of the cylindrical structure 7. Also in the extension part 10, the 1st flat plate 11, the 2nd flat plate 12, the 3rd flat plate 13, and the 4th flat plate 14 are connected in order without a break.

  The extension 10 described above is provided on each of the first side packaging material 6A and the second side packaging material 6B. As shown in FIG. 1 described above, the first side packaging material 6A has an extension 10 at the upper end facing the second side packaging material 6B. On the other hand, the 2nd side part packaging material 6B has the extension part 10 in the lower end part which opposes 6A of 1st side part packaging materials. In the state after assembly shown in FIG. 2, the first side packaging material 6A and the second side packaging material 6B are adjacent to each other. At this time, the extension portion 10 of the first side packaging material 6A and the extension portion 10 of the second side packaging material 6B are also adjacent to each other.

  FIG. 7 shows the extension 10 in a state in which the first side packaging material 6A and the second side packaging material 6B are adjacent to each other in the Z direction. The extension portion 10, the first flat plate 11, the second flat plate 12, the third flat plate 13, and the fourth flat plate 14 of the first side wrapping material 6A are respectively referred to as the first extension portion 10A, the first flat plate 11A, and the first flat plate 14, respectively. They are called the 2nd flat plate 12A, the 3rd flat plate 13A, and the 4th flat plate 14A. Similarly, the extension portion 10, the first flat plate 11, the second flat plate 12, the third flat plate 13, and the fourth flat plate 14 of the second side packaging material 6B are hereinafter referred to as the second extension portion 10B and the first flat plate, respectively. 11B, the second flat plate 12B, the third flat plate 13B, and the fourth flat plate 14B.

  In FIG. 7, the first extension portion 10A and the second extension portion 10B are adjacent to each other in the Z direction. More specifically, the first flat plate 11A of the first extension 10A and the first flat plate 11B of the second extension 10B are adjacent to each other. In particular, the surface of the first flat plate 11A and the surface of the first flat plate 11B are in contact. In addition, the second flat plate 12A of the first extension portion 10A is in contact with the packaged body OBJ while extending in a direction away from the second extension portion 10B. The second flat plate 12B of the second extension portion 10B is in contact with the packaged body OBJ while extending in a direction away from the first extension portion 10A.

  Thus, the buffer portion 30 is configured by the first extension portion 10A and the second extension portion 10B being adjacent to each other in the Z direction. The buffer part 30 is interposed between the side packaging material 6 and the package body OBJ, and functions as a buffer material for the package object OBJ. In particular, each of the first extension portion 10A and the second extension portion 10B has a rectangular tube structure as described above, and is not easily deformed by an external force. Such a first extension portion 10A and the second extension portion 10B are adjacent to each other, whereby a strong buffer portion 30 is obtained.

  Further, in the first extension portion 10A formed by bending, there is a possibility that a force for returning to the original portion or a force for falling in the + Z direction in FIG. 7 is generated. However, since the first flat plate 11A of the first extension portion 10A is in contact with the first flat plate 11B of the second extension portion 10B, the first extension portion 10A is pushed back from the second extension portion 10B. Therefore, deformation of the first extension portion 10A is prevented. Similarly, since the second extension portion 10B is pushed back from the first extension portion 10A, the deformation of the second extension portion 10B is prevented. Thus, the buffer part 30 with a stable shape is obtained.

  Then, the effect of this Embodiment is demonstrated.

  FIG. 8 shows a pattern in which the operator moves the packaged body OBJ packaged with the packaging material 1. When the packaged body OBJ is a large heavy object such as a refrigerator, it is difficult to move the packaged body OBJ by simply pressing it by hand. Therefore, the operator may move the packaged body OBJ by pressing the knee against the side surface of the packaging material 1. In that case, there is a possibility that the portion where the knee is pressed is deformed inward and hits the side surface of the package OBJ. This causes damage to the packaged body OBJ.

  According to the present embodiment, by combining the first side packaging material 6A and the second side packaging material 6B, the buffer portion 30 can be formed at a height assumed to hit the knee. Assuming the height of the knee, as shown in FIG. 8, the height dimension LA of the first side packaging material 6A may be designed to be shorter than the height dimension LB of the second side packaging material 6B. . At the position where the buffer portion 30 is formed, deformation of the side packaging material 6 with respect to external force is suppressed. That is, even if the knee is pressed against the position of the buffer portion 30, the side packaging material 6 is not easily deformed. Therefore, it becomes possible to prevent damage during movement of the packaged object OBJ.

  It should be noted that the position where the knee hits and the position of the buffer portion 30 do not have to be completely coincident. Compared with the case where the buffer part 30 is not provided, only the buffer part 30 is provided, and the deformation of the side packaging material 6 with respect to the external force is suppressed as a whole. Therefore, even if the knee is pressed against the position shifted from the buffer portion 30, the effect of suppressing damage to the packaged body OBJ can be obtained.

  Further, the position of the buffer 30 is not limited to the position shown in FIG. 8, and may be freely designed according to the application. For example, as shown in FIG. 9, loading and unloading work on a truck bed 40 can be considered. Assuming such an unloading operation, the first side packaging material 6A and the second side packaging material 6B may be designed so that the buffer portion 30 is formed at a position corresponding to the corner of the loading platform 40. Thereby, it becomes possible to prevent damage during loading and unloading.

  According to the present embodiment, the buffer portion 30, that is, the extension portion 10 is formed as a part of the side packaging material 6. As shown in FIGS. 5 and 6, the extension portion 10 can be easily formed by bending a portion extending from the end portion 7 </ b> E of the cylindrical structure 7 of the side packaging material 6. In the present embodiment, there is no need to separately prepare and arrange a honeycomb-like buffer as in Patent Document 1. Therefore, it is possible to reduce the number of parts, the amount of packaging material used, the material cost, and the number of work steps. In other words, according to the present embodiment, the packaging material 1 that is environmentally friendly, inexpensive, and excellent in work efficiency is provided.

  Moreover, the buffer part 30 is not necessarily provided over the whole side surface of the to-be-packaged body OBJ. The buffer part 30 is pinpointed at a position to be strengthened. For example, when loading and unloading as shown in FIG. 9 is considered, the buffer portion 30 is provided at a height assumed to hit the corner portion of the loading platform 40. On the other hand, the longitudinal direction of the buffer part 30 is a horizontal direction. That is, the buffer part 30 is formed so as to have a necessary minimum width in the height direction and a sufficient width in the horizontal direction. Thereby, it becomes possible to protect the package body OBJ efficiently while reducing the material cost.

  As described above, according to the packaging material 1 of the present embodiment, it is possible to prevent damage during movement of the packaged body OBJ with a simple structure.

  The packaged body OBJ is not limited to a refrigerator. The packaged body OBJ may be an outdoor unit or a water heater of an air conditioner.

<Second Embodiment>
FIG. 10 is a perspective view showing the structure of the side packaging material 6 according to the second embodiment of the present invention. The extension 10 need not be provided on all inner surfaces of the cylindrical structure 7. For example, consider a case where only a specific side surface of the packaged body OBJ is easily damaged, or a case where the side surface of the side packaging material 6 that comes into contact with the loading platform 40 during loading / unloading is determined. In these cases, as shown in FIG. 10, it is also possible to provide the extension 10 only on the side requiring protection. In this case, the material cost can be further reduced.

<Third Embodiment>
FIG. 11 is a view similar to FIG. 7 described above, and schematically shows the structure of the extension portion 10 and the buffer portion 30 according to the third embodiment of the present invention. A description overlapping with the above-described embodiment will be omitted as appropriate.

  In FIG. 11, the first extension portion 10A includes a first flat plate 11A, a second flat plate 12A, and a third flat plate 13A. These first flat plate 11A, second flat plate 12A, and third flat plate 13A constitute a first extension portion 10A having a rectangular tube structure whose longitudinal direction is the X direction. However, the shape of the first extension portion 10A in the YZ plane orthogonal to the X direction is not a rectangle but a triangle. Such a rectangular tube structure is also strong and hardly deforms against an external force.

  Similarly, the second extension 10B includes a first flat plate 11B, a second flat plate 12B, and a third flat plate 13B. The first flat plate 11B, the second flat plate 12B, and the third flat plate 13B constitute a second extension portion 10B having a rectangular tube structure whose longitudinal direction is the X direction. The shape of the second extension 10B in the YZ plane is also a triangle.

  The buffer portion 30 is configured by the first extension portion 10A and the second extension portion 10B being adjacent to each other in the Z direction. The buffer portion 30 is interposed between the side packaging material 6 and the packaged body OBJ and functions as a buffer material for the packaged body OBJ. In particular, each of the first extension portion 10A and the second extension portion 10B has a rectangular tube structure as described above, and is not easily deformed by an external force. Such a first extension portion 10A and the second extension portion 10B are adjacent to each other, whereby a strong buffer portion 30 is obtained.

  Various other variations are conceivable as the structure of the extension 10. That is, the shape of the extension 10 in the YZ plane is not limited to the rectangle as shown in FIG. 7 or the triangle as shown in FIG. For example, it is also possible to obtain a spiral rectangular tube structure by increasing the number of times of bending when creating the extension 10. In any case, the extension 10 having a polygonal shape in the YZ plane is preferable from the viewpoint of strength.

<Fourth embodiment>
In the fourth embodiment, a more simplified extension portion 10 and buffer portion 30 are proposed. A description overlapping with the above-described embodiment will be omitted as appropriate.

  FIG. 12 shows a state in which the extension portion 10 of the side packaging material 6 according to the present embodiment is developed. As shown in FIG. 12, in the present embodiment, the extension portion 10 includes only the first flat plate 11. By bending the first flat plate 11 toward the inner surface side of the cylindrical structure 7, the structure shown in FIG. 13 is obtained.

  FIG. 14 is a view similar to FIG. 7, and schematically shows the structure of the extension 10 and the buffer 30 according to the present embodiment. The first flat plate 11A of the first extension 10A of the first side packaging material 6A extends from the end portion 7EA of the first side packaging material 6A toward the + Y direction without a break. The tip of the first flat plate 11A is in contact with the packaged body OBJ. Moreover, the 1st flat plate 11B of the 2nd extension part 10B of the 2nd side part packaging material 6B is extended toward the + Y direction from the edge part 7EB of the 2nd side part packaging material 6B without a cut | interruption. The tip of the first flat plate 11B is in contact with the packaged body OBJ.

  Further, the first side packaging material 6A and the second side packaging material 6B are adjacent to each other in the Z direction. At this time, the first extension portion 10A and the second extension portion 10B are adjacent to each other in the Z direction. More specifically, the surface of the first flat plate 11A of the first extension 10A and the surface of the first flat plate 11B of the second extension 10B are in contact with each other. The first flat plate 11 </ b> A and the first flat plate 11 </ b> B in contact with each other as described above constitute the buffer unit 30 of the present embodiment. The buffer part 30 is interposed between the side packaging material 6 and the package body OBJ, and functions as a buffer material for the package object OBJ.

  On the first flat plate 11A of the first extension portion 10A formed by bending, there is a possibility that a force to return to the original or a force to collapse in the + Z direction in FIG. However, since the first flat plate 11A is in contact with the first flat plate 11B of the second extension portion 10B, the first flat plate 11A is pushed back from the second extension portion 10B. Similarly, the first flat plate 11B of the second extension portion 10B is also pushed back from the first extension portion 10A. That is, the first flat plate 11A and the first flat plate 11B that are in contact with each other push back. Thereby, the shape of the buffer part 30 is stabilized. That is, the shape of the buffer portion 30 extending in the + Y direction from the end portions 7EA and 7EB is hard and hardly deformed. Therefore, the buffer portion 30 of the present embodiment also functions sufficiently as a buffer material.

  According to the present embodiment, the buffer portion 30 can be realized with a simpler structure. As a result, the material cost can be further reduced.

<Fifth embodiment>
The number of the side packaging materials 6 for covering the side surface of the packaged body OBJ is not limited to two, and may be three or more. FIG. 15 is an exploded perspective view of the packaging material 1 according to the fifth embodiment of the present invention. FIG. 16 is a completed view of the packaging material 1 according to the present embodiment. A description overlapping with the above-described embodiment will be omitted as appropriate.

  In the present embodiment, three side packaging materials 6 are used: a first side packaging material 6A, a second side packaging material 6B, and a third side packaging material 6C. The first side packaging material 6A is disposed on the lowermost side. The third side packaging material 6C is disposed on the uppermost side. The second side packaging material 6B is disposed between the first side packaging material 6A and the second side packaging material 6B.

  The extension 10 is provided on each of the first side packaging material 6A, the second side packaging material 6B, and the third side packaging material 6C. More specifically, the first side packaging material 6A has an extension 10 at the upper end facing the second side packaging material 6B. The 2nd side packaging material 6B has the extension part 10 in each of the lower end part facing 6A of 1st side part packaging materials, and the upper end part facing 6C of 3rd side part packaging materials. The 3rd side part packaging material 6C has the extension part 10 in the lower end part which opposes the 2nd side part packaging material 6B.

  In the state after the assembly shown in FIG. 16, the first side packaging material 6A and the second side packaging material 6B are adjacent to each other, and the second side packaging material 6B and the third side packaging material 6C are mutually connected. Adjacent. At this time, the extension portion 10 of the first side packaging material 6A and the extension portion 10 of the second side packaging material 6B are adjacent to each other to form the buffer portion 30. Moreover, the extension part 10 of the 2nd side part packaging material 6B and the extension part 10 of the 3rd side part packaging material 6C adjoin each other, and form another buffer part 30. FIG.

  Thus, according to this Embodiment, it becomes possible to form the some buffer part 30 in separate height. Thereby, even if it is a case where it is assumed that external force is added to various heights, it becomes possible to protect the to-be-packaged body OBJ appropriately.

  As long as there is no contradiction, the above-described embodiments can be combined.

  1 packaging material, 2 lower cushioning material, 3 lower packaging material, 4 upper cushioning material, 5 upper packaging material, 6 side packaging material, 6A first side packaging material, 6B second side packaging material, 6C third side Part packaging material, 7 cylinder structure, 7E, 7EA, 7EB end, 7S inner surface, 8 bands, 10 extension part, 10A first extension part, 10B second extension part, 11, 11A, 11B first flat plate, 12, 12A , 12B 2nd flat plate, 13, 13A, 13B 3rd flat plate, 14, 14A, 14B 4th flat plate, 20, 21, 22, 23 Fold, 30 Buffer part, 40 Loading platform, OBJ Package

Claims (6)

A first side wrapping material and a second side wrapping material covering the side surface of the packaged body;
Each of the first side packaging material and the second side packaging material is
A cylindrical structure in which the axial direction is the first direction;
An extension extending from the end of the cylindrical structure in the first direction to the inner surface side of the cylindrical structure without a break,
The first side wrapping material and the second side wrapping material are adjacent to each other in the first direction;
The extension part of the first side packaging material and the extension part of the second side packaging material are adjacent to each other. The packaging material according to claim 1, wherein a longitudinal direction of the extension portion is a second direction orthogonal to the first direction along the end portion. The packaging material according to claim 2, wherein the extension portion has a rectangular tube structure whose longitudinal direction is the second direction. The extension includes a flat first plate extending from the end to the inner surface of the cylindrical structure without a break,
The packaging material according to any one of claims 1 to 3, wherein the first flat plate of the first side packaging material and the first flat plate of the second side packaging material are adjacent to each other. The packaging material according to claim 4, wherein a surface of the first flat plate of the first side packaging material and a surface of the first flat plate of the second side packaging material are in contact with each other. The packaging material according to claim 1, wherein the extension portion is in contact with the packaged body.

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