Packaging material and packing material

Abstract

A packaging material and a baling material, the packaging material being provided with: a first surface part which is adjacent to one side with a boundary line therebetween and which has a bottom plate on which an object to be packaged is placed; and a second surface part which is adjacent to the other side with the boundary line therebetween, and which has a top plate which is sandwiched between the bottom plate and the object to be packaged in a state where the boundary line is bent, the bottom plate and the top plate being a rectangular region in which one corner is in contact with each other at the boundary line, and the bottom plate and the top plate being a rectangular region in which one corner is in contact with each other at the boundary line. The portions of the first face portion and the second face portion which are closer to the outer side than the four sides of the rectangle of the bottom plate and the top plate are bent portions which can be bent on the four sides.

Description

Technical Field

[0001] The invention relates to a packaging material and a bundling material. Background Art

[0002] Japanese Patent No. 3831991 as Patent Document 1 describes a packaging box formed by separately bending two blanks formed by punching cardboard or corrugated paper, and combining them by welting to form a rectangular tube-shaped box body.

[0003] Japanese Patent Application Publication No. 2007-39052, Patent Document 2, describes a cross-shaped flat cushioning package, which is formed by bonding tongues provided at both wing ends and the lower middle portion of an elastic film in the long side direction to the back surface of a top surface of a predetermined shape through straight punching.

[0004] In addition, Patent Document 2 also describes a cross-shaped flat cushioning packaging component, which is formed by folding a portion of the upper end of the upper surface of a table formed of a prescribed shape, and bonding the tongue pieces provided at the two wing ends and the middle lower part in the long side direction of a rectangular elastic film to the back side through linear punching.

[0005] Patent document 2 also describes that the two flat cushioning packaging members contain the packaged items in a bag made of an elastic film formed by joining three locations, namely, a part of the width end and both ends in the long side direction, on a plate material formed into a shape that can have a cushioning structure.

[0006] Japanese Patent No. 5417955 as Patent Document 3 describes a paper pallet that is formed by assembling one blank and has a rectangular bottom plate and side plates standing on four sides of the bottom plate.

[0007] In addition, Patent Document 3 also records the following: The above-mentioned paper pallet comprises: a vertical plate, which is arranged from at least one side plate toward the inside of the pallet and is connected to a table plate parallel to the bottom plate via a fold line; and a baffle, which is connected to at least one edge of the side plate and the bottom plate and is arranged in a manner to cover a part of the area surrounded by the side plate, the table plate and the vertical plate and a part outside the area.

[0008] Patent Document 1: Japanese Patent No. 3831991 (Claims 1, 2, Figure 1-Figure 7 )

[0009] Patent Document 2: Japanese Patent Application Publication No. 2007-39052 (Claims 1, 2, Figure 1-Figure 2 3)

[0010] Patent Document 3: Japanese Patent No. 5417955 (Claim 1, Figure 1-Figure 3 ) Summary of the invention

[0011] The present invention provides a packaging material capable of packaging an object in a state where tension is applied by partial bending, and a packing material using the packaging material.

[0012] A first aspect of the present invention is a packaging material comprising:

[0013] The first surface is adjacent to the side across the boundary line and has a bottom plate for placing the packaged object; and

[0014] The second surface portion is adjacent to the other side across the boundary line and has a top plate that sandwiches the bottom plate and wraps the packaged object in a state where the boundary line is bent.

[0015] The bottom plate and the top plate are rectangular areas whose corners are connected to each other at the boundary line.

[0016] Portions of the first surface portion and the second surface portion that are located outside the four sides of the rectangle of the bottom plate and the top plate are bent portions that can be bent at the four sides.

[0017] A second aspect of the present invention is the packaging material of the first aspect,

[0018] Two of the four corners of the bottom plate except the one corner are respectively connected to the two sides of the first face portion that are perpendicular to the boundary line, and two of the four corners of the top plate except the one corner that are diagonally connected to the two sides of the second face portion that are perpendicular to the boundary line.

[0019] A third aspect of the present invention is the packaging material of the second aspect,

[0020] The remaining one of the four corners of the bottom plate is connected to one side of the first face portion parallel to the boundary line, and the remaining one of the four corners of the top plate is connected to one side of the second face portion parallel to the boundary line.

[0021] A fourth aspect of the present invention is the packaging material according to any one of the first to third aspects,

[0022] The first surface portion is provided with a joining portion that is continuous with and in contact with one side parallel to the boundary line and is joined to a portion of the second surface portion.

[0023] A fifth aspect of the present invention is the packaging material according to any one of the first to fourth aspects,

[0024] On the first face portion and the second face portion, two pre-bending lines parallel to the boundary line are respectively provided at inner positions at the same distance from the one corner and the one corner diagonally opposite to the one corner among the four corners of the bottom plate and the top plate.

[0025] A sixth aspect of the present invention is the packaging material according to any one of the first to fifth aspects,

[0026] The bent portion is configured as a triangular or trapezoidal portion having four sides of the rectangle of the bottom plate and the top plate as bases.

[0027] According to a seventh aspect of the present invention, in the packaging material of the sixth aspect,

[0028] The bent portion has a middle bending line parallel to the four sides of the rectangle of the bottom plate and the top plate.

[0029] According to an eighth aspect of the present invention, in the packaging material of the seventh aspect,

[0030] The bottom plate is provided with an insertion hole into which a front end portion of the bending portion when bent at the intermediate bending line is inserted.

[0031] According to a ninth aspect of the present invention, in the packaging material of the seventh aspect,

[0032] The bottom plate and the top plate are provided with insertion holes into which the front end of the bent portion when bent at the intermediate bending line is inserted.

[0033] According to a tenth aspect of the present invention, in the packaging material according to any one of the first to ninth aspects,

[0034] The top plate is provided with a buffer portion having a buffer function.

[0035] An eleventh aspect of the present invention is a packing material comprising the packaging material according to any one of the first to tenth aspects and a box for accommodating the packaging material.

[0036] According to a twelfth aspect of the present invention, in the packaging material according to the eleventh aspect,

[0037] The packaging material is accommodated in the box body in a state where the folded portion is folded.

[0038] Effects of the Invention

[0039] According to the packaging material of the first aspect, the packaging material can be packaged in a state where tension is applied due to partial bending.

[0040] According to the packaging material of the above-mentioned second scheme, for the bottom plate and the top plate, the bending portion can be simply formed compared to the structure in which the two corners of the bottom plate and the top plate are not respectively connected to the two sides of the first face portion and the second face portion but are located on the inner side of the two sides.

[0041] According to the packaging material of the above-mentioned third scheme, for the bottom plate and the top plate, a bending portion can be simply formed compared to a structure in which each remaining corner of the bottom plate and the top plate is not connected to each side of the first face portion and the second face portion parallel to the boundary line but is located on the inner side of each side.

[0042] According to the packaging material of the fourth aspect, the packaging object can be packaged more stably than in the case where the joining portion is not provided on the first surface portion.

[0043] According to the packaging material of the fifth aspect, the height of the storage space for the packaged object formed between the bottom plate and the top plate can be increased compared to the case where the pre-bending lines are not provided on the first surface portion and the second surface portion.

[0044] According to the packaging material of the sixth aspect, compared with the case where the bent portion is formed as a rectangular portion with four sides of the bottom plate and the top plate as one side respectively, the discarded portion of the surface material used to make the packaging material can be reduced to form the bent portion.

[0045] According to the packaging material of the seventh aspect, compared with a case where the bent portion does not have an intermediate bending line, the bent portion can be formed as a support column in a shape bent at an intermediate position.

[0046] According to the packaging material of the eighth scheme, compared with the case where no insertion hole is provided in the bottom plate for inserting the front end portion of the bending portion when bent at the middle bending line, the state of applying tension can be maintained and the bending portion can be used as an independent bottom plate support portion.

[0047] According to the packaging material of the above-mentioned scheme 9, compared with the case where no insertion hole is provided in the bottom plate and the top plate for inserting the front end portion of the bending portion when bending at the middle bending line, the state of applying tension can be maintained, and the bending portion can be used as an independent bottom plate support portion and an independent top plate support portion.

[0048] According to the packaging material of the tenth aspect, compared with a case where no buffer portion is provided on the top plate, the packaged object can be protected on the top plate side.

[0049] According to the packaging material of the eleventh aspect, the object to be packaged can be housed in the box in a state where tension is applied due to partial bending of the packaging material and the object to be packaged is packaged in the packaging material.

[0050] According to the packing material of the twelfth aspect, compared with the case where the packing material is housed in the box without the bent portion being bent, the packed object can be housed in the box with the bent portion of the packing material supporting it and floating it. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Embodiments of the present invention will be described in detail with reference to the following drawings.

[0052] Figure 1 is a development diagram of the packaging material involved in the first embodiment;

[0053] Figure 2 (A) is to Figure 1 A top view of the packaging material in a bent state. Figure 2 (B) is Figure 2 (A) is a schematic cross-sectional view of the packaging material along line BB;

[0054] Figure 3 (A) means Figure 2 A schematic three-dimensional diagram of a state in which a packaging material is formed with a storage space, Figure 3 (B) is Figure 3 (A) is a schematic cross-sectional view of the packaging material along line BB;

[0055] Figure 4 (A) is in Figure 3 A schematic cross-sectional view of a state in which a packaging material storage space stores a packaged object, Figure 4 (B) is pressed Figure 4 (A) is a schematic cross-sectional view of a state of a portion of a packaging material;

[0056] Figure 5 (A) means Figure 4 A top view of a partially bent portion of a packaging material in a bent state, Figure 5 (B) means Figure 5 (A) a bottom view of a packaging material in a bent state with all bent portions thereof;

[0057] Figure 6 (A) is a schematic cross-sectional view showing a state where the bent portion of the packaging material is bent once, Figure 6 (B) means Figure 6 A schematic cross-sectional view of a state in which the bent portion (A) is bent at the middle bending line and inserted into the insertion hole;

[0058] Figure 7 (A) is a schematic three-dimensional diagram of a state where a packaging material is wrapped with a packaging object. Figure 7 (B) indicates viewing from the side Figure 7(A) is a schematic diagram of the state of the packaging material;

[0059] Figure 8 Yes means have Figure 1 A schematic three-dimensional diagram of the packaging materials and the packing materials of the box;

[0060] Fig. 9 (A) is a schematic diagram showing a state in which a packaging material for packaging an object to be packaged is contained in a box body in a partial cross-section. Fig. 9 (B) is a partial section showing the closure Fig. 9 (A) is a schematic diagram of the state of the box;

[0061] Fig.10 is a development diagram of the packaging material involved in the second embodiment;

[0062] Fig.11 (A) means Fig.10 A schematic three-dimensional diagram of a state in which a packaging material is formed with a storage space, Fig.11 (B) is Fig.11 (A) is a schematic cross-sectional view of the packaging material along line BB;

[0063] Fig.12 (A) is in Fig.11 A schematic cross-sectional view of a state in which a packaging material storage space stores a packaged object, Fig.12 (B) is pressed Fig.12 (A) is a schematic cross-sectional view of a state of a portion of a packaging material;

[0064] Fig.13 (A) is a schematic three-dimensional diagram of a state where a packaging material is wrapped with a packaging object. Fig.13 (B) indicates viewing from the side Fig.13 (A) is a schematic diagram of the state of the packaging material;

[0065] Fig.14 is a development diagram of the packaging material involved in the third embodiment;

[0066] Fig.15 (A) is Fig.14 A schematic three-dimensional diagram showing a state in which the packaging material is packed with the packaged object. Fig.15 (B) indicates viewing from the side Fig.15 (A) is a schematic diagram of the state of the packaging material;

[0067] Fig.16 is an expanded view of the packaging material involved in the fourth embodiment;

[0068] Fig.17 (A) means Fig.16A bottom view of a partially bent portion of a packaging material in a bent state, Fig.17 (B) means Fig.17 (A) is a top view of the remaining bent portion of the packaging material in a bent state;

[0069] Fig.18 (A) is Fig.17 A schematic three-dimensional diagram showing a state in which the packaging material is packed with the packaged object. Fig.18 (B) indicates viewing from the side Fig.18 (A) is a schematic diagram of the state of the packaging material;

[0070] Fig.19 It is represented by a local section. Fig.18 A schematic diagram of a state in which the packaging material is contained in the box;

[0071] Fig. 20 is a development diagram of the packaging material involved in Embodiment 5;

[0072] Fig.21 (A) means Fig. 20 A schematic diagram showing the state of the packaging material when the packaging object is packaged. Fig.21 (B) is a partial cross-section showing Fig.21 (A) is a schematic diagram of a state in which packaging materials are accommodated in a box.

[0073] Explanation of symbols

[0074] 1A, 1B, 1C, 1D, 1E-packaging material, 2-first face, 3-bottom plate, 3a-1 corner, 3c, 3d-2 diagonally opposite corners, 3b-corner diagonally opposite to 1 corner, 4-second face, 5-top plate, 5a-1 corner, 5c, 5d-2 diagonally opposite corners, 5b-corner diagonally opposite to 1 corner, 6-bending portion, 7-joining portion, 8-insertion hole, 9-box, 10-packaging material, 12-boundary line, 16-middle bending line, 17-pre-bending line, 31, 32, 33, 34-4 sides of the bottom plate, 51, 52, 53, 54-4 sides of the top plate, 200A, 200B, 200C-packaged objects, Fa, Fb, Fc, Fd, Fe, Fg, Fi, Fj, Fk-tension. DETAILED DESCRIPTION

[0075] Hereinafter, the mode for carrying out the present invention will be described.

[0076] Implementation method 1.

[0077] Figure 1 It is a development view of the packaging material 1A according to the first embodiment of the present invention.

[0078] In this specification and the drawings, substantially the same components are denoted by the same reference numerals, and repeated description of the same components is omitted in this specification.

[0079] (Structure of packaging materials)

[0080] like Figure 1 As shown, the packaging material 1A includes a first surface portion 2 having a bottom plate 3 and a second surface portion 4 having a top plate 5 .

[0081] The first surface portion 2 and the second surface portion 4 are connected to each other so as to exist on both sides via a boundary line 12. The boundary line 12 is a straight line and is configured as a portion where a bend starts.

[0082] like Figure 4 , Figure 7 As shown in FIG. 2 (B), the packaging material 1A is used in a state where an object 200A to be packaged is sandwiched between the bottom plate 3 and the top plate 5 for packaging.

[0083] The first surface portion 2 is a surface portion adjacent to the other side across the boundary line 12 .

[0084] The bottom plate 3 is a rectangular area partitioned in the first surface portion 2 for placing the packaged object 200A. The rectangle is a square or a rhombus. The bottom plate 3 in the first embodiment is a square area.

[0085] The second surface portion 4 is a surface portion adjacent to the other side across the boundary line 12 .

[0086] The top plate 5 is in a state where the second surface portion 4 is bent at the boundary line 12 (see Figure 4 The top plate 5 in the first embodiment is a rectangular area divided by the top plate 5 so as to sandwich and wrap the packaged object 200A with the bottom plate 3.

[0087] like Figure 1 As shown, the bottom plate 3 and the top plate 5 are formed as regions where one corner 3a, 5a of each of them touches each other at the boundary line 12. The corner can be understood as one of the four corners in the rectangular region.

[0088] The bottom plate 3 and the top plate 5 are formed to have the same size. The sizes of the bottom plate 3 and the top plate 5 are set to be suitable for the size of the packaged object 200A to be packaged, the size of the storage interior of the box 9 when the packaging material 1A is stored in the box 9 and used as the packing material 10 as described later, and the like.

[0089] Among the four corners 3a, 3b, 3c, and 3d of the bottom plate 3, two corners 3c and 3d that are diagonally opposite to the one corner 3a are respectively connected to two sides 21 and 22 of the first face portion 2 that are orthogonal to the boundary line 12. Furthermore, the remaining one corner 3b of the bottom plate 3 is connected to one side 23 of the first face portion 2 that is parallel to the boundary line 12. The remaining one corner 3b is in a diagonally opposite positional relationship to the one corner 3a.

[0090] Among the four corners 5a, 5b, 5c, and 5d of the top plate 5, two diagonal corners 5c and 5d other than the one corner 5a are respectively connected to the two sides 41 and 42 of the second face portion 4 that are orthogonal to the boundary line 12. Furthermore, the remaining one corner 5b of the top plate 5 is connected to one side 43 of the second face portion 4 that is parallel to the boundary line 12. The remaining one corner 5b is in a diagonal positional relationship with the one corner 5a.

[0091] Furthermore, the first surface portion 2 is configured as bent portions 6A, 6B, 6C, and 6D at which portions outside the four sides 31 , 32 , 33 , and 34 of the bottom plate 3 can be bent at the four sides, respectively.

[0092] The bending portion 6A is a portion that can be bent at one side 31 of the bottom plate 3. The bending portion 6B is a portion that can be bent at one side 32 of the bottom plate 3. The bending portion 6C is a portion that can be bent at one side 33 of the bottom plate 3. The bending portion 6D is a portion that can be bent at one side 34 of the bottom plate 3.

[0093] Furthermore, the second surface portion 4 is configured as bent portions 6E, 6F, 6G, and 6H at which portions located outside the four sides 51 , 52 , 53 , and 54 of the top plate 5 can be bent at the four sides, respectively.

[0094] The bending portion 6E is a portion that can be bent at one side 51 of the top plate 5. The bending portion 6F is a portion that can be bent at one side 52 of the top plate 5. The bending portion 6G is a portion that can be bent at one side 53 of the top plate 5. The bending portion 6H is a portion that can be bent at one side 54 of the top plate 5.

[0095] Here, the four sides 31 , 32 , 33 , and 34 of the bottom plate 3 are configured as bending lines so that the bent portions 6A, 6B, 6C, and 6D can be easily bent.

[0096] Furthermore, the four sides 51 , 52 , 53 , and 54 of the top plate 5 are also configured as bending lines so that the bent portions 6E, 6F, 6G, and 6H can be easily bent.

[0097] The bending lines of the four sides of the bottom plate 3 and the top plate 5 are formed, for example, by cutting or punching a predetermined depth on one side of a surface material for producing the packaging material 1A.

[0098] like Figure 1As shown by the representative bent portion 6A, the bent portions 6A, 6B, 6C, and 6D have a main body 61, and the main body 61 is composed of a trapezoid with the four sides 31, 32, 33, and 34 of the bottom plate 3 as the bottom side (lower base). Figure 1 As shown, the bent portions 6A, 6B, 6C, and 6D are provided with an insertion portion 62 inserted into an insertion hole (8) described later on the upper side (upper bottom) of a trapezoidal main body portion 61.

[0099] The bent portion 6A shown as a representative example is formed as a trapezoidal portion having one side 31 of the bottom plate 3 as a base. The insertion portion 62 is formed as a protruding piece that protrudes from the center of the upper bottom of the main body portion 61 in a rectangular shape.

[0100] like Figure 1 As shown by the representative bent portion 6H, the bent portions 6E, 6F, 6G, and 6H have a main body 61, and the main body 61 is composed of a trapezoid with the four sides 51, 52, 53, and 54 of the top plate 5 as the bottom side (lower bottom). Figure 1 As shown, the bent portions 6E, 6F, 6G, and 6H are provided with an insertion portion 62 inserted into an insertion hole (8) described later on the upper side (upper bottom) of a trapezoidal main body portion 61.

[0101] The bent portion 6H described representatively is formed as a trapezoidal portion having one side 51 of the top plate 5 as a base. The insertion portion 62 is formed as a protruding piece that protrudes from the center of the upper bottom of the main body portion 61 in a rectangular shape.

[0102] Furthermore, each of the main body portions 61 of the bent portions 6A, 6B, 6C, and 6D is provided with a middle bending line 16 parallel to the four sides 31 , 32 , 33 , and 34 of the bottom plate 3 .

[0103] Furthermore, at the bending portion, each of the main body portions 61 of 6E, 6F, 6G, and 6H is also provided with a middle bending line 16 parallel to the four sides 51 , 52 , 53 , and 54 of the top plate 5 .

[0104] The middle fold line 16 is formed, for example, by making a cut or a punch with a predetermined depth on one side of a surface material for making the packaging material 1A.

[0105] like Figure 1 As shown, the packaging material 1A is provided with a joining portion 7 on the first surface portion 2 .

[0106] The joint 7 is a portion that is continuous with one side 23 of the first face portion 2 that is parallel to the boundary line 12. The joint 7 is also a portion that joins a portion of the second face portion 4 when the first face portion 2 and the second face portion 4 are folded at the boundary line 12 during packaging.

[0107] The joint part 7 contacts the inner part from one side 43 parallel to the boundary line 12 as a part of the second face part 4 during packaging, and is fixed to the second face part 4 by a fixing mechanism such as an adhesive tape, a double-sided tape, or an adhesive. In addition, the joint part 7 may be provided with a linear insertion hole for inserting the joint part 7 in a part of the second face part 4 (for example, a part close to one side 43), and the joint part 7 may be inserted into the insertion hole and fixed when the packaging material 1A is bent at the boundary line 12. At this time, if necessary, the above-mentioned fixing mechanism may be used in addition to fixing by insertion.

[0108] The joining portion 7 in the first embodiment is formed as a trapezoidal portion having one side 23 of the first surface portion 2 as a lower base. Furthermore, the joining portion 7 is formed as a trapezoidal portion of a predetermined height.

[0109] In addition, two sides 31 and 32 that become the bending line of the bottom plate 3 are extended and arranged in the joint 7. The existence of the bending line that enters from the bottom plate 3 facilitates the bending work of the bending parts 6A and 6H and the bending work of the bending parts 6B and 6G.

[0110] Furthermore, at the joint 7, each intermediate bending line 16 of the bending portions 6A and 6B is provided in a state where it is bent at a right angle and extended up and down (outwardly) into one side 23 of the bottom plate 3. The existence of the bending line into which the intermediate bending line enters facilitates the bending work of the bending portions 6A and 6H at the intermediate bending line 16 and the bending work of the bending portions 6B and 6G at the intermediate bending line 16.

[0111] like Figure 1 As shown, the packaging material 1A is provided with an insertion hole 8 on the bottom plate 3, into which each leading end portion of the eight bent portions 6A to 6H when bent at the intermediate bending line 16 is inserted.

[0112] Four insertion holes 8a, 8b, 8c, and 8d are provided as the insertion holes 8 in Embodiment 1. The insertion holes 8a, 8b, 8c, and 8d are formed as rectangular holes parallel to the four sides 31, 32, 33, and 34 of the bottom plate 3 at positions offset inward by a predetermined distance.

[0113] The insertion holes 8a, 8b, 8c, 8d are inserted as the front ends of the insertion parts 62 in the bending parts 6A-6H when the insertion parts are bent at the intermediate bending line 16. The insertion holes 8a, 8b, 8c, 8d are formed to have a size required for inserting and stopping the insertion parts 62.

[0114] The packaging material 1A having the above-described structure is manufactured as one plate-shaped member by performing necessary processing such as shearing processing, bending line processing, and notching processing using a bendable surface material.

[0115] The packaging material 1A can be produced by minimizing the amount of waste from the surface material by using a unique structure such as the arrangement of the bottom plate 3 and the top plate 5 and the arrangement of the bent portion 6 .

[0116] As the bendable surface material, a paper surface material represented by corrugated paper, cardboard, etc. is used, provided that no plastic is used.

[0117] Furthermore, as the bendable surface material, a plastic sheet (a sheet made of a foam such as polypropylene or polyethylene) or a plastic surface material made of corrugated plastic (a plastic corrugated cardboard) may be used as required.

[0118] Furthermore, the surface material is preferably composed of a single material, but may be a surface material composed of a composite material or a surface material composed of a material to which a desired function is added, depending on conditions such as the application.

[0119] (Example of use of packaging materials)

[0120] When packaging the object 200A, the packaging material 1A is used as follows.

[0121] First, if Figure 2 As shown, the packaging material 1A is, for example, in a state where the first surface portion 2 is folded back at the boundary line 12 and faces the second surface portion 4 .

[0122] Therefore, if Figure 3 As shown in FIGS. 1 and 1 , the bottom plate 3 of the first surface portion 2 and the top plate 5 of the second surface portion 4 are in an opposed state.

[0123] Furthermore, the bent portions 6E, 6F, 6G, and 6H in the second surface portion 4 are respectively opposed to the bent portions 6D, 6C, 6B, and 6A in the first surface portion 2 .

[0124] At this time, in the packaging material 1A, the joint portion 7 is in a state of protruding below one side 43 of the second surface portion 4. Figure 3 As shown, the joining portion 7 comes into contact with the inner surface portion from, for example, one side 43 of the second surface portion 4 and is fixed to the surface portion by a fixing mechanism such as an adhesive tape.

[0125] As a result, the packaging material 1A is in a state where the first surface portion 2 and the second surface portion 4 are connected via the joining portion 7 .

[0126] Then, if Figure 3 As shown, in the packaging material 1A, the first surface portion 2 and the second surface portion 4 are separated from each other to the extent possible, and a storage space S1 is formed therebetween.

[0127] The storage space S1 at this time is a space for storing the packaged object 200A.

[0128] The storage space S1 is a space of the following shape: it is mainly surrounded by the bottom plate 3 of the first surface 2 and the top plate 5 of the second surface 4 on the top and bottom, and is open at the front and back. The opening of the storage space S1 in the packaging material 1A is the front opening between one side 22 of the first surface 2 and one side 42 of the second surface 4, and the rear opening between one side 21 of the first surface 2 and one side 41 of the second surface 4.

[0129] Moreover, if Figure 3 As shown in (B), the storage space S1 and the opening of the packaging material 1A are centered, the height h1 of the center portion is the maximum (highest) dimension, and the heights h2 and h3 of the two side portions are smaller (lower) than the height h1 of the center portion. Furthermore, the front-back and left-right dimensions of the storage space S1 are almost the same as the dimensions of the diagonal lines of the bottom plate 3 and the top plate 5.

[0130] Next, in the packaging material 1A, as Figure 4 As shown in (A), the packaging object 200A is accommodated in the accommodation space S1.

[0131] like Figure 4 As shown in FIG. 2A , the packaged object 200A at this time is in a state where the lower surface portion 202 and the upper surface portion 201 are sandwiched by the bottom plate 3 of the first surface portion 2 and the top plate 5 of the second surface portion 4 .

[0132] Here, the packaged object 200A packaged with the packaging material 1A is of a size and shape that satisfies two conditions: it can be placed and accommodated from the opening of the accommodation space S1, and its plane area is smaller than the area of ​​each of the bottom plate 3 and the top plate 5. The packaged object 200A in the first embodiment is a disk-shaped object with a relatively thin thickness (upper and lower dimensions) Ta.

[0133] Even if the storage space S1 has a size such that the thickness Ta of the packaged object 200A is larger than the height h1 of the center portion, the packaged object 200A may be stored by expanding the first surface portion 2 and the second surface portion 4 in the vertical direction.

[0134] Furthermore, after the packaging material 1A contains the packaging object 200A in the storage space S1, Figure 4 As shown in (B), the portions located outside the packaged object 200A are brought close to each other and are crushed. The portions of the packaging material 1A located outside the packaged object 200A are mainly the bent portions 6A to 6H.

[0135] By setting it as this state, in the packaging material 1A, the bending work of the next bent portion 6A-6H can be easily performed.

[0136] Then, if Figure 5As shown, the packaging material 1A is bent at the bent portions 6A-6H.

[0137] The bending is carried out in the following way: first, Figure 5 (A) Figure 6 As shown in (A), the bent portions 6 in the relative state are bent toward the bottom plate 3 with one side of each of the bottom plate 3 and the top plate 5 as a bending line while facing and overlapping each other. The bent portions 6 in the relative state form the following four groups.

[0138] Specifically, if Figure 6 As shown in (A), the first group of bent portions 6H and the bent portion 6A are bent toward the bottom plate 3 with one side 54 of the top plate 5 and one side 31 of the bottom plate 3 as bending lines.

[0139] Furthermore, the second group of bent portions 6G and 6B are bent with one side 53 of the top plate 5 and one side 32 of the bottom plate 3 as the bending lines. The third group of bent portions 6F and 6C are bent with one side 52 of the top plate 5 and one side 33 of the bottom plate 3 as the bending lines. The fourth group of bent portions 6E and 6D are bent with one side 51 of the top plate 5 and one side 34 of the bottom plate 3 as the bending lines.

[0140] exist Figure 5 (A) shows a representative state in which the bent portion 6E and the bent portion 6D are bent and the bent portion 6G and the bent portion 6B are bent.

[0141] Moreover, in the bending at this time, Figure 6 As shown in (B), four sets of opposing bent portions 6 are bent using one side of each of the bottom plate 3 and the top plate 5 as bending lines so as to bend back toward the bottom plate 3 at the intermediate bending line 16 .

[0142] Thus, the four sets of bent portions 6 are bent into a V-shape.

[0143] Moreover, in the bending at this time, Figure 6 As shown in (B), the insertion portions 62 of the four sets of opposing bent portions 6 bent at the intermediate bending line 16 are respectively inserted into corresponding holes of the insertion holes 8a to 8d located on the bottom plate 3 and fixed.

[0144] Thus, the four sets of bent portions 6 are kept in a V-shaped state. The four sets of bent portions 6 kept in this shape serve as independent bottom plate support portions of the bottom plate 3 described later.

[0145] exist Figure 6 (B) representatively shows a state in which the insertion portion 62 is inserted into the insertion hole 8c and fixed after the bending portion 6H and the bending portion 6A are bent at the intermediate bending line 16.

[0146] And, in Figure 5 (B) shows a state where four sets of bent portions 6 facing each other are bent and the respective insertion portions 62 are inserted into the insertion holes 8a to 8d.

[0147] As mentioned above, Figure 7 As shown, the packaging material 1A is capable of packaging an object 200A.

[0148] Furthermore, in the packaging material 1A, as described above, the four sets of folded portions 6 facing each other are folded toward the bottom plate 3 at each of one side of the top plate 5 and the bottom plate 3 during packaging.

[0149] Thus, in the packaging material 1A, if Figure 7 As shown, the top plate 5 of the second face portion 4 and the bottom plate 3 of the first face portion 2 are respectively subjected to tensions Fa, Fb, Fc, and Fd such as pulling in the directions (outwards) of the four sets of bent portions 6 that are opposite to each other. At this time, the bottom plate 3 and the top plate 5 are in a state of being stretched and expanded by being subjected to the tensions Fa, Fb, Fc, and Fd.

[0150] Therefore, according to the packaging material 1A, the packaged object 200A is packaged in a state where tension is applied by folding the folded portion 6 which is a part of the packaging material 1A.

[0151] Specifically, the packaged object 200A packaged with the packaging material 1A is in a state where the bottom plate 3, which is extended by the tensions Fa, Fb, Fc, and Fd, is in close contact with its lower surface 202. Furthermore, the packaged object 200A is in a state where the top plate 5, which is extended by the tensions Fa, Fb, Fc, and Fd, is in close contact with its upper surface 201 while being supported by the bottom plate 3. This state is a state where the tensions Fa, Fb, Fc, and Fd are also applied to the packaged object 200A.

[0152] As a result, the object 200A is sandwiched and held between the bottom plate 3 and the top plate 5 (accommodation space S1) in a pressure-contact manner, and is packaged in a stable state by the packaging material 1A.

[0153] (Example of use as a packing material combined with a box body of a packaging material)

[0154] Then, if Figure 8 As shown, the packaging material 1A can be used as a packing material 10 in combination with a box body 9 that accommodates the packaging material 1A.

[0155] first, Figure 8The box body 9 shown in the example is a box body having a rectangular bottom surface 91, four side surfaces 92, 93, 94, 95 and four cover surfaces 96, 97, 98, 99. The bottom surface 91 is not limited to being composed of one part from the beginning, but can also be completed by combining multiple divided surface parts.

[0156] Furthermore, the box body 9 has a storage space S9 surrounded by a bottom surface portion 91 and four side surfaces 92, 93, 94, and 95. The storage space S9 is a space of a size that can store the packaging material 1A in a state where the bent portion 6 is bent. The plane of the storage space S9 is preferably set to a size that can store the bottom plate 3 and the top plate 5 of the packaging material 1A with a small gap, but is not limited thereto.

[0157] The box body 9 is in a closed state by bending the four cover surface parts 96 , 97 , 98 , and 99 at the upper ends of the four side surface parts 92 , 93 , 94 , and 95 .

[0158] As such a box body 9, for example, a corrugated cardboard box is used.

[0159] Furthermore, in the packaging material 10, Fig. 9 As shown in FIG. 2 (A), the packaging material 1A that packages the packaging object 200A is stored in the storage space S9 of the box body 9.

[0160] Next, in the packaging material 10, as Fig. 9 As shown in (B), after the packaging material 1A is housed in the box body 9, the four cover surface parts 96, 97, 98, and 99 of the box body 9 are closed.

[0161] As described above, the packaging material 10 and the packaging material 1A are combined and packaged.

[0162] During this packing, in the packaging material 1A, the four sets of bent portions 6 in the state where the insertion portions 62 are inserted into the insertion holes 8 exist as portions protruding downward from the bottom plate 3 and are in contact with the bottom surface portion 91 of the box body 9 .

[0163] The four sets of the bent portions 6 are the bent portions 6H and 6A, the bent portions 6G and 6B, the bent portions 6F and 6C, and the bent portions 6E and 6D.

[0164] As described above, in the packaging material 1A, the four sets of bent portions 6 in the bent state function as bottom plate support portions of the bottom plate 3 .

[0165] Therefore, in the packing material 10 , the packaging material 1A that packages the object 200A is stored in the storage space S9 of the box body 9 in a state supported by the bottom plate support portions constituted by the four sets of bent portions 6 in a bent state.

[0166] Furthermore, in the packing material 10 , the packaged object 200A is accommodated in the accommodation space S9 of the box body 9 in a state of being floated by a predetermined distance L from the bottom surface portion 91 by the bottom plate support portion constituted by the four sets of bent portions 6 .

[0167] Therefore, according to the packing material 10 , the packaging material 1A to which the object 200A is to be packaged is packaged while tension is applied by folding the folded portion 6 which is a part of the packaging material 1A, and is housed in the box 9 as it is.

[0168] In the packing material 10, the packaging material 1A holds the packaging object 200A in a state of floating away from the bottom surface 91 of the box body 9. Thus, the packaging object 200A is protected while ensuring buffering properties against external forces input from the bottom surface 91 of the box body 9, for example.

[0169] Implementation method 2.

[0170] Fig.10 It is a development view of a packaging material 1B according to Embodiment 2 of the present invention.

[0171] The packaging material 1B is a packaging material having the same structure as the packaging material 1A according to the first embodiment except that a pre-bending line 17 is added to the first surface portion and the second surface portion.

[0172] (Structure of packaging materials)

[0173] The pre-bending lines 17 in the packaging material 1B are two bending lines provided on the first surface portion 2 and the second surface portion 4 , respectively, and parallel to the boundary line 12 .

[0174] like Fig.10 As shown, the two pre-bending lines 17 are set as pre-bending lines 17a, 17b and pre-bending lines 17c, 17d at the same distance inside from the corners 3a, 5a and the corners 3b, 5b among the four corners of the bottom plate 3 and the top plate 5.

[0175] The packaging material 1B provided with the pre-bending line 17 is suitable for packaging a packaging object 200B having a relatively thick thickness (vertical dimension) Tb. The thickness Tb of the packaging object 200B is thicker than the thickness Ta of the packaging object 200A illustrated in Embodiment 1. The thickness Tb is, for example, twice or more the thickness Ta of the packaging object 200A.

[0176] The packaged object 200B illustrated in the second embodiment is an object having a cubic appearance shape with a thickness Tb.

[0177] (Example of use of packaging materials)

[0178] When packaging the packaging object 200B, the packaging material 1B is used as follows.

[0179] First, the packaging material 1B is similar to the packaging material 1A. After the first surface 2 is folded back at the boundary line 12 to face the second surface 4, the joint 7 is fixed to the inner surface portion from one side 43 of the second surface 4 (see FIG. Figure 2 , Figure 3 ).

[0180] As a result, the packaging material 1B is in a state where the first surface portion 2 and the second surface portion 4 are connected via the joining portion 7 .

[0181] Then, if Fig.11 As shown, in the packaging material 1B, the first surface portion 2 and the second surface portion 4 are separated from each other to the greatest extent possible, and a storage space S2 is formed therebetween.

[0182] At this time, in the packaging material 1B, if Fig.11 As shown in (A), the portion of the first face 2 that is outside the pre-bending lines 17a and 17b is bent inwardly at the pre-bending lines 17a and 17b, respectively. In addition, in the packaging material 1B, the portion of the second face 4 that is outside the pre-bending lines 17c and 17d is bent inwardly at the pre-bending lines 17c and 17d, respectively.

[0183] Thus, a storage space S2 having a shape that is surrounded by the bottom plate 3 and a part of the top plate 5 and a part of each bent portion 6 at the top and bottom and is open at the front and back is formed in the packaging material 1B.

[0184] The left and right sides of the storage space S2 are formed by the remaining portions of the bottom plate 3 and the top plate 5 bent at the pre-bending lines 17 and the remaining portions of the bent portions 6 bent at the pre-bending lines 17 .

[0185] Thus, in the packaging material 1B, if Fig.11 As shown in (B), as the storage space S2, a storage space including an opening portion and an internal space having a relatively high height h5 at its center portion and heights h6 and h7 at portions (ends) located on the left and right sides thereof can be obtained.

[0186] The height h5 of the center of the storage space S2 and the heights h6 and h7 of the ends thereof are all higher than the height h1 of the center of the storage space S1 obtained by the packaging material 1A according to the first embodiment (see Figure 3 (B)) high size.

[0187] Next, in the packaging material 1B, as Fig.12 As shown in (A), the packaged object 200B is accommodated in the accommodation space S2.

[0188] At this time, in the packaging material 1B, as described above, by bending at the pre-bending line 17, it is possible to easily obtain the storage space S2 including the opening portion having a relatively high height.

[0189] Therefore, in the packaging material 1B, if Fig.12 As shown in (A), the packaged object 200B having a relatively high thickness Tb can be accommodated in the accommodation space S2.

[0190] Furthermore, in the packaging material 1B at this time, after the packaging object 200B is contained in the containing space S2, as shown in FIG. Fig.12 As shown in (B), the portions located outside the packaged object 200B are brought close to each other and are crushed. The portions of the packaging material 1B located outside the packaged object 200B are mainly the bent portions 6A to 6H.

[0191] By setting it as this state, in the packaging material 1B, the bending work of the next bent portion 6A-6H can be easily performed.

[0192] Next, the packaging material 1B is similar to the packaging material 1A according to the first embodiment. Fig.13 As shown, the four sets of bent portions 6 in a relative state are bent.

[0193] In this bending, the four sets of bent portions 6 in a facing state are bent toward the bottom plate 3 with one side of each of the bottom plate 3 and the top plate 5 as bending lines, and then bent back toward the bottom plate 3 at each intermediate bending line 16 .

[0194] In the bending at this time, the insertion portions 62 of the four sets of opposing bent portions 6 bent at the intermediate bending line 16 are respectively inserted into corresponding holes of the insertion holes 8 a to 8 d located in the bottom plate 3 and fixed.

[0195] Thus, the four sets of bent portions 6 are held in a V-shaped shape.

[0196] As mentioned above, Fig.13 As shown, the packaging material 1B is capable of packaging an object 200B.

[0197] Furthermore, in the packaging material 1B, compared with the case of packaging with the packaging material 1A not provided with the pre-bending line 17, as described above, it is possible to easily package the packaging object 200B having a relatively thick thickness Tb.

[0198] Also in this packaging material 1B, similarly to the packaging material 1A according to the first embodiment, four sets of opposing bent portions 6 are bent toward the bottom plate 3 at one side of each of the top plate 5 and the bottom plate 3 during packaging.

[0199] Thus, in the packaging material 1B, if Fig.13 As shown, the top plate 5 of the second face portion 4 and the bottom plate 3 of the first face portion 2 receive tensions Fa, Fb, Fc, and Fd respectively, such that they are pulled toward the directions (outwards) of the four sets of bent portions 6 facing each other.

[0200] Therefore, also with this packaging material 1B, the object to be packaged 200B is packaged in a state where tension is applied by folding the folded portion 6 which is a part of the packaging material 1B.

[0201] Specifically, the packaged object 200B packaged with the packaging material 1B is in a state where the bottom plate 3, which is extended by the tensions Fa, Fb, Fc, and Fd, is in close contact with its lower surface 202. Furthermore, the packaged object 200B is in a state where the top plate 5, which is extended by the tensions Fa, Fb, Fc, and Fd, is in close contact with its upper surface 201 while being supported by the bottom plate 3. This state is a state where the tensions Fa, Fb, Fc, and Fd are also applied to the packaged object 200B.

[0202] As a result, the object to be packaged 200B is sandwiched and held between the bottom plate 3 and the top plate 5 (accommodation space S2) in a pressure-contact manner, and is packaged in a stable state by the packaging material 1B.

[0203] (Example of use as a packing material combined with a box body of a packaging material)

[0204] Furthermore, the packaging material 1B can also be used as a packing material 10 (see FIG. 1 ) combined with a box body 9 for accommodating the packaging material 1B, similarly to the packaging material 1A according to the first embodiment. Figure 8 ).

[0205] In the case of the packing material 10 including the packaging material 1B and the box body 9, the packaging material 1B which packages the packaged object 200B is also accommodated in the accommodation space S9 of the box body 9 (see Fig. 9 (A)).

[0206] Therefore, even with this packing material 10, the packaging material 1B which is a part of the packaging material 1B and packs the packaging object 200B under tension is stored in the box body 9 as it is (see FIG. 1 ). Fig. 9 (B)).

[0207] In the packaging material 10, the packaging object 200B is accommodated in a state of being separated from the bottom surface portion 91 of the box body 9 and floating due to the packaging material 1B (see Fig. 9 (B)).

[0208] Implementation method 3.

[0209] Fig.14 It is a development view of a packaging material 1C according to Embodiment 3 of the present invention.

[0210] The packaging material 1C is a packaging material having the same structure as the packaging material 1B according to the second embodiment (reference Fig.10 ) are compared with the above, except that a buffer section 56 is added, and other than that, the above are the same structure.

[0211] (Structure of packaging materials)

[0212] The buffer portion 56 in the packaging material 1C is a portion having a buffer function. The buffer portion 56 is provided on the top plate 5B of the second surface portion 4. The buffer function of the buffer portion 56 is a function of relieving an impact when the packaging material 1C receives an impact from the outside.

[0213] The buffer portion 56 in the third embodiment is formed by a plurality of cutouts.

[0214] The incisions of the buffer portion 56 are parallel line incisions 56a, oblique line incisions 56b and fold line incisions 56c. Fig.14 The electrodes are regularly dispersed and arranged as shown in the example.

[0215] The parallel line cut 56a is a cut composed of parallel lines parallel to the sides 51 and 53 of the top plate 5B. The oblique line cut 56b is a cut composed of oblique lines obliquely intersecting the sides 51 and 53 of the top plate 5B. The fold line cut 56c is a cut composed of a fold line connecting a first cut parallel to the sides 51 and 53 of the top plate 5B and a second cut parallel to the sides 52 and 54 of the top plate 5B at a right angle.

[0216] The number, size, and position of the parallel line cuts 56a, the oblique line cuts 56b, and the fold line cuts 56c are selected based on conditions such as the shape of the packaged object 200C to be packaged.

[0217] Incidentally, the buffer portion 56 may be additionally provided not only on the top plate 5B but also on the bottom plate 3 .

[0218] The packaging material 1C in which the buffer portion 56 is provided on both the top plate 5B and the bottom plate 3 is advantageous in the following aspects. That is, in the packaging material 1C at this time, when a relatively large packaged object is packaged as the packaged object 200, the larger packaged object can be packaged in a more protected state compared to the case where the buffer portion 56 is provided only on one side such as the top plate 5B.

[0219] The packaging material 1C provided with the buffer portion 56 is suitable for packaging an object 200C having a composite upper surface. The upper surface of the object 200C is not a single plane but is a surface having one or more portions protruding upward.

[0220] like Fig.15 As shown, the packaged object 200C illustrated in the third embodiment is a structure in which the packaged object 200A in the first embodiment is stacked on the packaged object 200B in the second embodiment. That is, the packaged object 200C is a structure having an appearance shape in which a lower layer portion 205 having a cubic appearance shape and an upper layer portion 206 having a disc-like appearance shape on the upper surface of the lower layer portion 205 are integrated.

[0221] (Example of use of packaging materials)

[0222] When packaging the packaging object 200C, the packaging material 1C is used as follows.

[0223] First, the packaging material 1C is similar to the packaging material 1A. After the first surface 2 is folded back at the boundary line 12 to face the second surface 4, the joint 7 is fixed to the inner surface portion from one side 43 of the second surface 4 (see FIG. Figure 2 , Figure 3 ).

[0224] As a result, the packaging material 1C is in a state where the first surface portion 2 and the second surface portion 4 are connected via the joining portion 7 .

[0225] Next, the packaging material 1C is similar to the packaging material 1B according to the second embodiment, in that the first surface 2 and the second surface 4 are separated from each other as far as possible, and a storage space S2 is formed therebetween (see FIG. Fig.11 Then, in the packaging material 1C, the packaging object 200C is accommodated in the accommodation space S2 (refer to Fig.12 , Fig.15 (B)).

[0226] Next, the packaging material 1C is similar to the packaging material 1B according to the second embodiment. Fig.15 As shown, the operation of bending the four sets of bent portions 6 in an opposed state and the operation of inserting the insertion portion 62 in each bent portion 6 into the insertion hole 8 are performed.

[0227] In the bending at this time, if Fig.15 As shown in (B), the top plate 5 of the second surface portion 4 is in contact with the upper surface portion of the upper layer portion 206 of the packaged object 200C and is in contact with the upper surface portion of the lower layer portion 205 of the packaged object 200C.

[0228] At this time, the top plate 5 is deformed to be slightly separated from the plurality of cutouts 56a, 56b, 56c of the buffer portion 56, and deforms and contacts the top surface of the packaged object 200C while following the shape of the top surface as much as possible.

[0229] As mentioned above, Fig.15 As shown, the packaging material 1C is capable of packaging an object 200C.

[0230] Furthermore, in the packaging material 1C, when packaging the packaged object 200C having a composite upper surface, the top plate 5 follows the shape of the upper surface of the packaged object 200C and comes into contact with the upper surface more than when packaging with the packaging material 1A or the packaging material 1B without the buffer portion 56. Furthermore, the packaged object 200C is packaged while being provided with the buffer function of the buffer portion 56 of the top plate 5.

[0231] Also in this packaging material 1C, similarly to the packaging material 1A according to the first embodiment, four sets of opposing bent portions 6 are bent toward the bottom plate 3 at one side of each of the top plate 5 and the bottom plate 3 during packaging.

[0232] Thus, in the packaging material 1C, if Fig.15 As shown, the top plate 5 of the second face portion 4 and the bottom plate 3 of the first face portion 2 are also subjected to tensions Fa, Fb, Fc, and Fd respectively, such as being pulled toward the directions (outwards) of the four sets of bent portions 6 facing each other.

[0233] Therefore, also with this packaging material 1C, by bending the bent portion 6 which is a part of the packaging material 1C, the packaging object 200C is packaged in a state where tension is applied.

[0234] Specifically, the packaged object 200C packaged with the packaging material 1C is in a state where the bottom plate 3, which is extended by the tensions Fa, Fb, Fc, and Fd, is in close contact with the lower surface of its lower layer 205. Furthermore, the packaged object 200C is in a state where the top plate 5, which is extended by the tensions Fa, Fb, Fc, and Fd, is in close contact with the upper surface of its upper layer 206 while being supported by the bottom plate 3. This state is a state where the tensions Fa, Fb, Fc, and Fd are also applied to the packaged object 200C.

[0235] As a result, the object to be packaged 200C is sandwiched and held between the bottom plate 3 and the top plate 5 (accommodation space S2) in a pressure-contact manner, and is packaged in a stable state by the packaging material 1C.

[0236] (Example of use as a packing material combined with a box body of a packaging material)

[0237] Furthermore, the packaging material 1C can also be used as a packing material 10 (see FIG. 1 ) combined with a box body 9 for accommodating the packaging material 1C, similarly to the packaging material 1A according to the first embodiment. Figure 8 ).

[0238] In the case of the packing material 10 including the packaging material 1C and the box body 9, the packaging material 1C that packages the packaged object 200C is also accommodated in the accommodation space S9 of the box body 9 (see Fig. 9 (A)).

[0239] Therefore, using this packing material 10, the packaging material 1C that has packaged the object 200C under tension by bending the bent portion 6 that is a part of the packaging material 1C is stored in the box 9 as it is (see FIG. Fig. 9 (B)).

[0240] In the packaging material 10, the packaging object 200C is accommodated in a state of being separated from the bottom surface portion 91 of the box body 9 and floating due to the packaging material 1C (see Fig. 9 (B)).

[0241] Implementation method 4.

[0242] Fig.16 It is a development view of a packaging material 1D according to Embodiment 4 of the present invention.

[0243] The packaging material 1D is a packaging material having a structure similar to the packaging material 1A according to the first embodiment (see Figure 1 ) are compared, except that the arrangement of the insertion hole 8 is changed, and other than that, the two embodiments have the same structure.

[0244] (Structure of packaging materials)

[0245] The insertion holes 8 in the packaging material 1D are composed of two insertion holes 8 a and 8 c provided in the bottom plate 3 and two insertion holes 8 f and 8 g provided in the top plate 5 .

[0246] When comparing the insertion hole 8 with the insertion hole 8 in the first embodiment, it can be said that the insertion holes 8b and 8d (see FIG. 1 ) provided in the bottom plate 3 in the first embodiment are replaced by the insertion holes 8b and 8d (see FIG. 1 ) provided in the bottom plate 3 in the first embodiment. Figure 1 etc.) are moved to the top plate 5.

[0247] (Example of use of packaging materials)

[0248] When packaging the object 200A, the packaging material 1D is used as follows.

[0249] First, the packaging material 1D is similar to the packaging material 1A. After the first surface 2 is folded back at the boundary line 12 to face the second surface 4, the joint 7 is fixed to the inner surface portion from one side 43 of the second surface 4 (see FIG. Figure 2 , Figure 3 ).

[0250] As a result, the packaging material 1D is in a state where the first surface portion 2 and the second surface portion 4 are connected via the joining portion 7 .

[0251] Next, in the packaging material 1D, similarly to the packaging material 1A according to the first embodiment, the first surface 2 and the second surface 4 are separated from each other as far as possible, and a storage space S1 is formed therebetween (see FIG. Figure 3 Then, in the packaging material 1D, the packaging object 200A is accommodated in the accommodation space S1 (refer to Figure 4 ).

[0252] Then, if Fig.17 , Fig.18 As shown, the packaging material 1D is subjected to an operation of bending four sets of the folded portions 6 that are in an opposed state, and an operation of inserting the insertion portion 62 in each of the folded portions 6 into the insertion hole 8 .

[0253] In the bending at this time, if Fig.18 As shown, two sets of bending portions 6 (6E, 6D and 6G, 6B) in a relative state are bent toward the bottom plate 3 with one side of the bottom plate 3 and one side of the top plate 5 as bending lines, and then bent back toward the bottom plate 3 at each intermediate bending line 16.

[0254] In the bending at this time, the remaining two sets of bent portions 6 ( 6A, 6H and 6C, 6F) in a facing state are bent toward the top plate 5 and then folded back toward the top plate 5 at each intermediate bending line 16 .

[0255] Then, in the bending process, Fig.17 As shown in (A), the insertion parts 62 of the two opposite sets of bent parts 6 (6G, 6B and 6E, 6D) bent toward the bottom plate 3 at the intermediate bending line 16 are respectively inserted into the insertion holes 8a, 8c located in the bottom plate 3 and fixed.

[0256] And, in the bending at this time, if Fig.17 As shown in (B), the insertion portions 62 of the remaining two sets of bending portions 6 (6C, 6F and 6A, 6H) bent toward the top plate 5 at the middle bending line 16 are respectively inserted into the corresponding holes of the insertion holes 8f, 8g located on the top plate 5 and fixed.

[0257] As mentioned above, Fig.18As shown, the packaging material 1D is capable of packaging an object 200A.

[0258] Furthermore, in this packaging material 1D, as described above, the four sets of opposing bent portions 6 are bent separately from each other at one side of each of the top plate 5 and the bottom plate 3 toward the bottom plate 3 or the top plate 5 during packaging.

[0259] Thus, in the packaging material 1D, if Fig.18 As shown in (A) and the like, the top plate 5 of the second face portion 4 and the bottom plate 3 of the first face portion 2 are respectively subjected to tensions Fb and Fd such as being pulled in the direction (outward) of the two sets of opposite bent portions 6 bent toward the bottom plate 3. At this time, the bottom plate 3 and the top plate 5 are in a state of being stretched and expanded by being subjected to the tensions Fb and Fd.

[0260] Furthermore, in the packaging material 1D, if Fig.18 As shown in (A) and the like, the top plate 5 of the second face portion 4 and the bottom plate 3 of the first face portion 2 are respectively subjected to tensions Fe and Fg such as being pulled in the direction (outward) of the remaining two sets of bent portions 6 that are bent toward the top plate 5. At this time, the bottom plate 3 and the top plate 5 are in a state of being stretched and expanded by being subjected to the tensions Fe and Fg.

[0261] Therefore, according to the packaging material 1D, the bent portion 6 which is a part of the packaging material 1D is bent toward the bottom plate 3 and the top plate 5, respectively, so that the packaging object 200A is packaged in a state where the respective tensions are applied.

[0262] (Example of use as a packing material combined with a box body of a packaging material)

[0263] Furthermore, the packaging material 1D can also be used as a packing material 10 (see FIG. 1 ) combined with a box 9 for accommodating the packaging material 1D, similarly to the packaging material 1A according to the first embodiment. Figure 8 ).

[0264] In the case of the packing material 10 including the packaging material 1D and the box body 9, the packaging material 1D in which the packaging object 200A is packaged is also stored in the storage space S9 of the box body 9 (see Fig. 9 (A)).

[0265] Therefore, according to the packaging material 10, Fig.19 As shown, the packaging material 1D to which the object 200A is packaged is packaged while various tensions are applied by bending the folded portion 6 which is a part of the packaging material 1D to different sides, and is housed in the box 9 as it is.

[0266] In the packing material 10 , the packaging material 1D contains the packaging object 200A in a state of floating a predetermined distance L1 from the bottom surface 91 of the box body 9 , and in a state of being separated a predetermined distance L2 from the cover surfaces 96 , 98 forming the top surface of the box body 9 .

[0267] Thus, in this case, the packaged object 200A is protected by, for example, ensuring buffering of external forces input from the bottom surface 91 of the box body 9 and also ensuring buffering of external forces input from the cover surfaces 96 and 98 that become the top surface of the box body 9.

[0268] Implementation method 5.

[0269] Fig. 20 It is a development view of a packaging material 1E according to Embodiment 5 of the present invention.

[0270] The packaging material 1E is a packaging material having a structure similar to the packaging material 1A according to the first embodiment (see Figure 1 ) are compared with the embodiment shown in FIG. 1 , except that the shape of the bent portion 6 is changed and the insertion hole 8 is omitted, the other parts are the same structure.

[0271] (Structure of packaging materials)

[0272] like Fig. 20 As shown, the bent portion 6 in the packaging material 1E is configured without the insertion portion 62 in the first embodiment (see Figure 1 ) and only includes a trapezoidal main body portion 61B.

[0273] Furthermore, in the packaging material 1E, the insertion hole 8 (see FIG. 1 ) in the packaging material 1A according to the first embodiment is not provided. Figure 1 ) and omitted.

[0274] (Example of use of packaging materials)

[0275] The packaging material 1E is used as a packaging material for packaging the packaging object 200A in the same manner as the packaging material 1A according to the first embodiment except for the following differences.

[0276] Since the packaging material 1E does not have the insertion hole 8, Fig.21 As shown in (A), the bent portions 6A-6H are stopped in a state of being bent toward the bottom plate 3 side.

[0277] At this time, the bent portions 6A to 6H can also be set to a state where they are not bent at the intermediate bending line 16 . Fig.21 The symbol 61t in (A) represents the upper base of the trapezoid of the bent portion 6 when the intermediate bending line 16 is not bent.

[0278] like Fig.21As shown in (A), the packaging material 1E can also be used to package the packaging object 200A.

[0279] Furthermore, in the packaging material 1E, as described above, the four sets of folded portions 6 facing each other are folded toward the bottom plate 3 at each of one side of the top plate 5 and the bottom plate 3 during packaging.

[0280] Thus, in the packaging material 1E, if Fig.21 As shown in (A), the top plate 5 of the second face portion 4 and the bottom plate 3 of the first face portion 2 are respectively subjected to tensions Fi, Fj, Fk, and Fm (Fm not shown) such as being pulled in the direction (outward) of the two opposite sets of bent portions 6 bent toward the bottom plate 3 side.

[0281] At this time, the bottom plate 3 and the top plate 5 are in a state of being stretched and expanded by receiving the tensions.

[0282] Therefore, according to the packaging material 1E, the bent portion 6 which is a part of the packaging material 1E is bent toward the bottom plate 3 and the top plate 5 respectively, so that the packaging object 200A is packaged in a state where the respective tensions are applied.

[0283] (Example of use as a packing material combined with a box body of a packaging material)

[0284] Furthermore, the packaging material 1E can also be used as a packing material 10 (see FIG. 1 ) combined with a box body 9 for accommodating the packaging material 1E, similarly to the packaging material 1A according to the first embodiment. Figure 8 ).

[0285] In the case of the packing material 10 including the packaging material 1E and the box body 9, Fig.21 As shown in FIG. 2 (B), the packaging material 1E that packages the object 200A is also accommodated in the accommodation space S9 of the box body 9.

[0286] Furthermore, in the packaging material 10, if Fig.21 As shown in (B), for example, the bent portion 6 of the packaging material 1E is preferably in contact with the side portions 92, 93, 94, and 95 in the storage space S9 of the box body 9, and its bent state is maintained. In this case, the box body 9 can be configured, for example, so that its storage space S9 has a width (size) that can accommodate the packaging material 1E in a state where the bent portion 6 is bent from the four side portions with a small gap.

[0287] Thus, the bent portion 6 of the packaging material 1E accommodated in the box 9 contacts the side portions in the accommodation space S9 to maintain the bent state. As a result, the packaging material 1E continues to maintain the state in the box 9 where the top plate 5 and the bottom plate 3 are subjected to the above-mentioned tensions.

[0288] In the packing material 10 combined with the packaging material 1E, the four sets of bent portions 6 in the packaging material 1E can be bent into bent portions bent toward the bottom plate 3 and bent portions bent toward the top plate 5 as exemplified in the packaging material 1D according to the fourth embodiment.

[0289] Variation example.

[0290] The present invention is not limited to the configurations exemplified in the above-mentioned embodiments 1 to 5, and various modifications, changes, or combinations can be made within the scope of the gist of each invention described in the claims. Therefore, the present invention also includes, for example, the following modifications.

[0291] The bending portion 6 in the packaging material 1 can be configured as a bending portion of a main body portion having the following shape: Fig. 20 As illustrated by the two-dot chain line, in addition to the upper base of the trapezoidal body 61B, a triangular corner portion is added as indicated by the reference numeral 61C, and the entirety is triangular.

[0292] Furthermore, the box body 9 of the packing material 10 may be provided with hooking parts such as cutouts, recesses, holes, etc. on the four side surfaces thereof for catching and holding the front end of the bent portion 6 of the packaging material 1 .

[0293] When the box body 9 provided with the hook portion is used, the packaging material 1 can be accommodated in a state where the tip end portion of the bent portion 6 is inserted and caught.

[0294] Thus, the packaging material 1 accommodated in the box body 9 continues to maintain the state in which the top plate 5 and the bottom plate 3 are subjected to the above-mentioned tensions in the box body 9. In this case, provision of the insertion hole 8 in the packaging material 1 can be omitted.

[0295] (Note) (1)

[0297] A packaging material comprising:

[0298] The first surface is adjacent to the side across the boundary line and has a bottom plate for placing the packaged object; and

[0299] The second surface portion is adjacent to the other side across the boundary line and has a top plate that sandwiches the bottom plate and wraps the packaged object in a state where the boundary line is bent.

[0300] The bottom plate and the top plate are rectangular areas whose corners are connected to each other at the boundary line.

[0301] Portions of the first surface portion and the second surface portion that are located outside the four sides of the rectangle of the bottom plate and the top plate are bent portions that can be bent at the four sides. (2)

[0303] The packaging material according to (1), wherein

[0304] Two of the four corners of the bottom plate except the one corner are respectively connected to the two sides of the first face portion that are perpendicular to the boundary line, and two of the four corners of the top plate except the one corner that are diagonally connected to the two sides of the second face portion that are perpendicular to the boundary line. (3)

[0306] The packaging material according to (2), wherein

[0307] The remaining one of the four corners of the bottom plate is connected to one side of the first face portion parallel to the boundary line, and the remaining one of the four corners of the top plate is connected to one side of the second face portion parallel to the boundary line. (4)

[0309] The packaging material according to any one of (1) to (3), wherein

[0310] The first surface portion is provided with a joining portion that is continuous with and in contact with one side parallel to the boundary line and is joined to a portion of the second surface portion. (5)

[0312] The packaging material according to any one of (1) to 4), wherein

[0313] On the first face portion and the second face portion, two pre-bending lines parallel to the boundary line are respectively provided at inner positions at the same distance from the one corner and the one corner diagonally opposite to the one corner among the four corners of the bottom plate and the top plate. (6)

[0315] The packaging material according to any one of (1) to (5), wherein

[0316] The bent portion is configured as a triangular or trapezoidal portion having four sides of the rectangle of the bottom plate and the top plate as bases. (7)

[0318] The packaging material according to (6), wherein

[0319] The bent portion has a middle bending line parallel to the four sides of the rectangle of the bottom plate and the top plate. (8)

[0321] The packaging material according to (7), wherein

[0322] The bottom plate is provided with an insertion hole into which a front end portion of the bending portion when bent at the intermediate bending line is inserted. (9)

[0324] The packaging material according to (7), wherein

[0325] The bottom plate and the top plate are provided with insertion holes into which the front end of the bent portion when bent at the intermediate bending line is inserted. (10)

[0327] The packaging material according to any one of (1) to 9), wherein

[0328] The top plate is provided with a buffer portion having a buffer function. (11)

[0330] A packing material comprising the packaging material according to any one of (1) to 10) and a box body for accommodating the packaging material. (12)

[0332] The packing material according to (11), wherein

[0333] The packaging material is accommodated in the box body in a state where the folded portion is folded.

[0334] According to the packaging material according to (1), the packaged object can be packaged in a state where tension is applied due to partial bending.

[0335] According to the packaging material involved in (2), for the bottom plate and the top plate, the bending portion can be simply formed compared to the structure in which the two corners of the bottom plate and the top plate are not respectively connected to the two sides of the first face portion and the second face portion but are located on the inner side of the two sides.

[0336] According to the packaging material involved in (3), for the bottom plate and the top plate, a bending portion can be simply formed compared to a structure in which each remaining corner of the bottom plate and the top plate is not connected to each side of the first face portion and the second face portion parallel to the boundary line but is located on the inner side of each side.

[0337] According to the packaging material according to (4), the packaged object can be packaged more stably than when no joining portion is provided on the first surface portion.

[0338] According to the packaging material according to (5), the height of the storage space for the packaged object formed between the bottom plate and the top plate can be increased compared to a case where the pre-bending lines are not provided on the first surface portion and the second surface portion.

[0339] According to the packaging material involved in (6), compared with a case where the bent portion is configured as a rectangular portion having four sides of the bottom plate and the top plate as one side, the bent portion can be formed to reduce the discarded portion of the surface material used to produce the packaging material.

[0340] According to the packaging material according to (7), compared with a case where the bent portion does not have an intermediate bending line, the bent portion can be formed as a support column in a shape bent at an intermediate position.

[0341] According to the packaging material involved in (8), compared with a case where no insertion hole is provided in the bottom plate for inserting the front end portion of the bent portion when bent at the intermediate bending line, the state of applying tension can be maintained, and the bent portion can be used as an independent bottom plate support portion.

[0342] According to the packaging material involved in (9), compared with the case where no insertion hole is provided in the bottom plate and the top plate for inserting the front end portion of the bending portion when bending at the middle bending line, the state of applying tension can be maintained, and the bending portion can be used as an independent bottom plate support portion and an independent top plate support portion.

[0343] According to the packaging material according to (10), compared with a case where no buffer portion is provided on the top plate, the packaged object can be protected on the top plate side.

[0344] According to the packaging material according to (11), the object to be packaged can be housed in the box in a state where tension is applied due to partial bending of the packaging material and the object to be packaged is packaged in the packaging material.

[0345] According to the packing material involved in (12), compared with the case where the packing material is housed in the box in a state where the bent portion is not bent, the packaged object can be housed in the box in a state where the bent portion of the packing material supports the packaged object and makes it float.

[0346] The above-mentioned embodiments of the present invention are provided for the purpose of illustration and description. In addition, the embodiments of the present invention do not fully and exhaustively include the present invention, and do not limit the present invention to the disclosed methods. Obviously, various modifications and changes are self-evident to those skilled in the art to which the present invention belongs. The present embodiment is selected and described in order to most easily understand the principles of the present invention and its application. Thus, other technicians in the art can understand the present invention through various variations optimized for specific uses assumed to be various embodiments. The scope of the present invention is defined by the above claims and their equivalents.

Claims

1. A packaging material comprising: The first surface is adjacent to the side across the boundary line and has a bottom plate for placing the packaged object; and The second surface portion is adjacent to the other side across the boundary line and has a top plate that sandwiches the bottom plate and wraps the packaged object in a state where the boundary line is bent. The bottom plate and the top plate are rectangular areas whose corners are connected to each other at the boundary line. Portions of the first surface portion and the second surface portion that are located outside the four sides of the rectangle of the bottom plate and the top plate are bent portions that can be bent at the four sides.

2. The packaging material according to claim 1, wherein Two of the four corners of the bottom plate except the one corner are respectively connected to the two sides of the first face portion that are perpendicular to the boundary line, and two of the four corners of the top plate except the one corner that are diagonally connected to the two sides of the second face portion that are perpendicular to the boundary line.

3. The packaging material according to claim 2, wherein: The remaining one of the four corners of the bottom plate is connected to one side of the first face portion parallel to the boundary line, and the remaining one of the four corners of the top plate is connected to one side of the second face portion parallel to the boundary line.

4. The packaging material according to any one of claims 1 to 3, wherein The first surface portion is provided with a joining portion that is continuous with and in contact with one side parallel to the boundary line and is joined to a portion of the second surface portion.

5. The packaging material according to any one of claims 1 to 4, wherein On the first face portion and the second face portion, two pre-bending lines parallel to the boundary line are respectively provided at inner positions at the same distance from the one corner and the one corner diagonally opposite to the one corner among the four corners of the bottom plate and the top plate.

6. The packaging material according to any one of claims 1 to 5, wherein The bent portion is configured as a triangular or trapezoidal portion having four sides of the rectangle of the bottom plate and the top plate as bases.

7. The packaging material according to claim 6, wherein: The bent portion has a middle bending line parallel to the four sides of the rectangle of the bottom plate and the top plate.

8. The packaging material according to claim 7, wherein: The bottom plate is provided with an insertion hole into which a front end portion of the bending portion when bent at the intermediate bending line is inserted.

9. The packaging material according to claim 7, wherein: The bottom plate and the top plate are provided with insertion holes into which the front end of the bent portion when bent at the intermediate bending line is inserted.

10. The packaging material according to any one of claims 1 to 9, wherein The top plate is provided with a buffer portion having a buffer function. 11 . A packing material comprising the packaging material according to claim 1 and a box for accommodating the packaging material.

12. The packaging material according to claim 11, wherein The packaging material is accommodated in the box body in a state where the folded portion is folded.

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