Blank Sheet, Buffer Material, and Storage Method

Abstract

Provided is an assemblable blank sheet with a cushioning material that can easily adjust the space for storing an object. 【Solution means】It is a blank sheet that forms a cushioning material by being bent. In the state where the blank sheet is assembled, the blank sheet includes a base portion, a first side wall portion, a second side wall portion, a first adjustment portion, and a first support portion. The first adjustment portion is formed of a part of the base portion and is deformable into a first state where it does not bend and a second state where it bends. The first support portion supports the first adjustment portion when the first adjustment portion is in the second state. When the first adjustment portion is in the first state, a first space is defined between the first side wall portion and the second side wall portion. When the first adjustment portion is in the second state, a second space smaller than the first space is defined between the first adjustment portion and the second side wall portion.

Description

Technical Field

[0001] The present disclosure relates to a blank sheet, a cushioning material, and a storage method.

Background Art

[0002] For example, Patent Document 1 discloses a packing box. The packing box described in Patent Document 1 includes a plurality of partition plates assembled in a grid shape inside a box body that is an outer box, and a buffer block interposed between the inner peripheral surface of the box body and the partition plates.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the packing box described in Patent Document 1 has room for improvement in terms of easily adjusting the space for storing an object.

[0005] Therefore, an object of the present disclosure is to provide a blank sheet capable of assembling a cushioning material with an easily adjustable space for storing an object, a cushioning material assembled from the blank sheet, and a storage method for storing an object in the cushioning material.

Means for Solving the Problems

[0006] A blank sheet according to one aspect of the present disclosure is a blank sheet that can be folded to assemble a cushioning material, in a state where the blank sheet is assembled, having a base portion having a first main surface and a second main surface opposite to the first main surface, and a first end portion and a second end portion facing the first end portion, A first side wall portion extending from the first end portion of the base portion in a first direction from the second main surface toward the first main surface; A second side wall portion extending from the second end portion of the base portion in the first direction; Formed by a part of the base portion, from the first side wall portion, at a position spaced apart in a second direction from the first end portion toward the second end portion, one or more first adjusting portions deformable between a first state where they do not bend and a second state where they bend in the first direction; 3 And one or more first support portions that support the one or more first adjusting portions when the one or more first adjusting portions are in the second state. When the one or more first adjusting portions are in the first state, a first space is defined between the first side wall portion and the second side wall portion on the first main surface of the base portion. Comprising When the one or more first adjusting portions are in the second state, a second space smaller than the first space is defined between the one or more first adjusting portions and the second side wall portion on the first main surface of the base portion.

[0007] The cushioning material according to one aspect of the present disclosure is assembled by folding the above-described blank sheet.

[0008] The storage method of the present disclosure is a method of storing an object in the above-described cushioning material, Comprising the step of adjusting the space inside the cushioning material, And the step of storing the object in the adjusted space inside the cushioning material. Having In the step of adjusting the space inside the cushioning material, the space inside the cushioning material is adjusted by deforming the first adjusting portion into the first state or the second state.

Advantages of the Invention

[0009] ​According to the present disclosure, it is possible to provide a blank sheet capable of assembling a cushioning material with an easily adjustable space for storing an object, a cushioning material assembled from the blank sheet, and a storage method for storing the object in the cushioning material.

Brief Description of the Drawings

[0010]

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Mode for Carrying Out the Invention

[0011] (Background Leading to the Present Disclosure) Patent Document 1 discloses a packing box including a box body, a plurality of partition plates, and cushioning blocks. In the packing box described in Patent Document 1, a user adjusts a space for storing an object by changing the arrangement of a plurality of partition plates and cushioning blocks or the like for each object to be packed having different dimensions.

[0012] However, the plurality of partition plates and cushioning blocks are separate members. When storing objects having different dimensions inside the box body, the user changes the combination of the plurality of partition plates and the positions of the cushioning blocks for each dimension of the object. For this reason, there is a problem that the space for storing the object cannot be easily adjusted.

[0013] Therefore, the present inventors have studied a cushioning material capable of easily adjusting a space for storing an object and a blank sheet capable of assembling the cushioning material in order to solve the above-described problems, and have reached the present disclosure.

[0014] Hereinafter, Embodiment 1 according to the present disclosure will be described with reference to the accompanying drawings. In each drawing, each element is shown in an exaggerated manner for easy explanation.

[0015] (Embodiment 1) The blank sheet of the present embodiment can be assembled into a cushioning material by being folded. The cushioning material can adjust a space in which an object is stored according to each of objects having different sizes. For example, the object is an electronic device. For example, the object is a computer.

[0016] FIG. 1 is a plan view of an example of a blank sheet 1A according to Embodiment 1. FIGS. 2 to 4 are perspective views of a cushioning material 2A assembled by bending the blank sheet 1A shown in FIG. 1. In the drawings, the X-axis direction and the Y-axis direction indicate the horizontal direction, and the Z direction indicates the vertical direction. The first direction Z1 and the second direction Z2 in the drawings are parallel to the Z-axis. The third direction X1 and the fourth direction X2 in the drawings are parallel to the X-axis direction. The fifth direction Y1 and the sixth direction Y2 in the drawings are parallel to the Y-axis direction.

[0017] (Blank sheet) The blank sheet 1A shown in FIG. 1 is assembled into the cushioning material 2A shown in FIGS. 2 to 4 by being bent. The blank sheet 1A is assembled into the cushioning material 2A by being bent along the fold line 61 or the cut 65. The blank sheet 1A shown in FIG. 1 is illustrated so that the inner surface side is visible. The fold line 61 of the blank sheet 1A may be a ruled line formed by pressing the surface of the blank sheet 1A into a line, or intermittent cuts may be formed in the ruled line. For example, the blank sheet 1A may be made of cardboard.

[0018] (Cushioning material) The cushioning material 2A assembled by bending the blank sheet 1A will be described.

[0019] FIG. 5 is an enlarged schematic cross-sectional view of the cushioning material 2A shown in FIG. 3 cut along line A-A. FIG. 6 is an enlarged schematic cross-sectional view of the cushioning material 2A shown in FIG. 4 cut along line B-B. FIG. 7 is an enlarged schematic view of the cushioning material 2A shown in FIG. 3 cut along line C-C.

[0020] As shown in FIG. 3 or FIG. 5, the buffer member 2A includes a base portion 4A, a first side wall portion 5A, a second side wall portion 6A, a third side wall portion 7A, a fourth side wall portion 8A, a first adjustment portion 21A, and a first support portion 41A. Further, as shown in FIG. 2, FIG. 6, or FIG. 7, the buffer member 2A includes a lid portion 10A, a second adjustment portion 22A, a plurality of third adjustment portions 23A, a fourth adjustment portion 24A, a second support portion 42A, and a plurality of third support portions 43A. Furthermore, the buffer member 2A includes a first inner side wall portion 51, a second inner side wall portion 52, a third inner side wall portion 53, and a fourth inner side wall portion 54.

[0021] As shown in FIGS. 2 to 4, the buffer member 2A has a space inside where an object can be stored. The buffer member 2A has an opening. The opening of the buffer member 2A is defined by the first side wall portion 5A, the second side wall portion 6A, the third side wall portion 7A, and the fourth side wall portion 8A.

[0022] The base portion 4A has a first main surface 81 and a second main surface opposite to the first main surface 81. The base portion 4A has a rectangular shape when viewed from the second direction Z2 opposite to the first direction Z1 from the second main surface toward the first main surface 81. The object is disposed on the first main surface 81 of the base portion 4A. The base portion 4A has a first end portion, a second end portion facing the first end portion, a third end portion intersecting the first end portion, and a fourth end portion facing the third end portion.

[0023] The first side wall portion 5A extends in the first direction Z1 from the first end portion of the base portion 4A. The first side wall portion 5A has a rectangular shape when viewed from the third direction X1 from the first end portion toward the second end portion. The first side wall portion 5A has a length H1 in the first direction Z1. The first side wall portion 5A has a length L11 in the fifth direction Y1.

[0024] The second side wall portion 6A extends in the first direction Z1 from the second end portion of the base portion 4A. The second side wall portion 6A has a rectangular shape when viewed from the fourth direction X2 opposite to the third direction X1. The second side wall portion 6A has a length H1 in the first direction Z1. The second side wall portion 6A has a length L11 in the fifth direction Y1.

[0025] The third side wall portion 7A extends from the third end portion of the base portion 4A in the first direction Z1. The third side wall portion 7A has a portion having a length H1 and a portion having a length H2 in the first direction Z1. The length H1 is longer than the length H2. The third side wall portion 7A has a length L1 in the third direction X1.

[0026] The fourth side wall portion 8A extends from the fourth end portion of the base portion 4A in the first direction Z1. The fourth side wall portion 8A has a rectangular shape when viewed from the sixth direction Y2 opposite to the fifth direction Y1. The fourth side wall portion 8A has a length H1 in the first direction Z1. The fourth side wall portion 8A has a length L1 in the third direction X1.

[0027] The lid portion 10A is provided so as to be able to open and close the opening of the cushioning material 2A. The lid portion 10A is connected to the third side wall portion 7A. As shown in FIGS. 6 and 7, in a state where the lid portion 10A is closed, the lid portion 10A is bent from the third side wall portion 7A in the fifth direction Y1. As shown in FIG. 7, the lid portion 10A has a through hole 71 at a position away from the third side wall portion 7A in the direction Y1 toward the fifth direction Y1.

[0028] As shown in FIGS. 2 and 3, the first adjustment portion 21A and the second adjustment portion 22A adjust a space in which an object can be stored in the third direction X1 and the fourth direction X2 of the space inside the cushioning material 2A.

[0029] As shown in FIG. 5, the first adjustment portion 21A is formed by a part of the base portion 4A and a part of the first side wall portion 5A. The first adjustment portion 21A is deformable into a first state and a second state. The first state is a state in which the first adjustment portion 21A does not bend at a position away from the first side wall portion 5A in the third direction X1 from the first end portion to the second end portion. The second state is a second state in which the first adjustment portion 21A is bent from the base portion 4A in the first direction Z1.

[0030] As shown in FIG. 5, in the second state, the first adjustment portion 21A is formed by a first portion 31 in which a part of the base portion 4A is bent in the first direction Z1 and a second portion 32 in which a part of the first side wall portion 5A is bent in the third direction X1. The first portion 31 and the second portion 32 are connected.

[0031] When the first adjustment part 21A is in the second state, the first part 31 of the first adjustment part 21A bends at 90 degrees from the base part 4A in the first direction Z1. When the first adjustment part 21A is in the second state, the second part 32 of the first adjustment part 21A bends at 90 degrees from the first side wall part 5A in the third direction X1. When the first adjustment part 21A is in the second state, as viewed from the fifth direction Y1 along the first side wall part 5A, the first adjustment part 21A has an inverted L shape.

[0032] When the first adjustment part 21A is in the second state, the length H3 of the first adjustment part 21A in the first direction Z1 is smaller than the length H1 of the first side wall part 5A in the first direction Z1. When the first adjustment part 21A is in the second state, the length L12 of the first adjustment part 21A in the fifth direction Y1 is longer than the length L2 of the first adjustment part 21A in the third direction X1. The length H3 of the first adjustment part 21A in the first direction Z1 is relatively the same as the length L2 of the first adjustment part 21A in the third direction X1.

[0033] As shown in FIG. 2, the second adjustment part 22A is formed by a part of the base part 4A and a part of the second side wall part 6A. The second adjustment part 22A has the same configuration as the first adjustment part 21A. The second adjustment part 22A is different in the position where it is arranged from the first adjustment part 21A and in the point that it is formed by a part of the base part 4A and a part of the second side wall part 6A.

[0034] As shown in FIGS. 2 and 3, the second adjustment part 22A can be deformed into a third state and a fourth state. The third state is a state where the second adjustment part 22A is separated from the second side wall part 6A in the fourth direction X2 opposite to the third direction X1 and does not bend. The fourth state is a state where the second adjustment part 22A is separated from the second side wall part 6A in the fourth direction X2 and bends from the base part 4A in the first direction Z1.

[0035] The second adjustment part 22A is formed by a third part 33 in which a part of the base part 4A is bent in the first direction Z1 and a fourth part 34 in which a part of the second side wall part 6A is bent in the fourth direction X2 in the fourth state. The third part 33 and the fourth part 34 are connected. When the second adjustment part 22A is in the fourth state, the third part 33 is bent at 90 degrees from the base part 4A in the first direction Z1, and the fourth part 34 is bent at 90 degrees from the second side wall part 6A in the fourth direction X2. When the second adjustment part 22A is in the fourth state, when viewed from the fifth direction Y1 along the second side wall part 6A, the second adjustment part 22A has an inverted L shape.

[0036] The second adjustment part 22A is arranged at a position facing the first adjustment part 21A. When the first adjustment part 21A is in the second state and the second adjustment part 22A is in the fourth state, the first part 31 of the first adjustment part 21A and the third part 33 of the second adjustment part 22A have surfaces facing each other.

[0037] When the first adjustment part 21A is in the first state and the second adjustment part 22A is in the third state, a first space S1 is defined on the first main surface 81 of the base part 4A. As shown in FIG. 2, the first space S1 is defined between the first side wall part 5A and the second side wall part 6A on the first main surface 81 of the base part 4A. The first space S1 has a length from the first inner side wall part 51 to the second inner side wall part 52 in the third direction X1.

[0038] When the first adjustment part 21A is in the second state and the second adjustment part 22A is in the fourth state, a second space S2 is defined on the first main surface 81 of the base part 4A. As shown in FIG. 3, the second space S2 is defined between the first adjustment part 21A and the second adjustment part 22A on the first main surface 81 of the base part 4A. The second space S2 is smaller than the first space S1. The second space S2 is smaller than the first space S1 by the length L2 of the first adjustment part 21A in the third direction X1 and the length L3 of the second adjustment part 22A in the fourth direction X2.

[0039] In addition, when the first adjustment part 21A is in the second state and the second adjustment part 22A is in the third state, a third space S3 may be defined on the first main surface 81 of the base part 4A. As shown in FIG. 3, the third space S3 may be defined between the first adjustment part 21A and the second side wall part 6A. The third space S3 is smaller than the first space S1. The third space S3 is smaller than the first space S1 by a length L2 in the third direction X1 of the first adjustment part 21A. The third space S3 is larger than the second space S2. The third space S3 is larger than the second space S2 by a length L3 in the fourth direction X2 of the second adjustment part 22A.

[0040] The plurality of third adjustment parts 23A adjust the space inside the cushioning material 2A in the fifth direction Y1 and the sixth direction Y2. The third adjustment part 23A has the same configuration as the first adjustment part 21A. The third adjustment part 23A is different in the arranged position from the first adjustment part 21A and is different in the point formed by a part of the base part 4A and a part of the third side wall part 7A.

[0041] As shown in FIG. 4, the plurality of third adjustment parts 23A are arranged at intervals along the third side wall part 7A. The plurality of third adjustment parts 23A are formed by a part of the base part 4A and a part of the third side wall part 7A. Each of the plurality of third adjustment parts 23A is deformable into a fifth state and a sixth state. The fifth state is a state in which the plurality of third adjustment parts 23A are separated from the third side wall part 7A in the fifth direction Y1 from the third end part to the fourth end part of the base part 4A and do not bend. The sixth state is a state in which the plurality of third adjustment parts 23A are separated from the third side wall part 7A in the fifth direction Y1 and bend from the base part 4A in the first direction Z1.

[0042] As shown in FIG. 6, the third adjustment part 23A is formed by a fifth part 35 obtained by bending a part of the base 4A in the first direction Z1 and a sixth part 36 obtained by bending a part of the third side wall part 7A in the fifth direction Y1 in the sixth state. The fifth part 35 and the sixth part 36 are connected. In the sixth state, the fifth part 35 is bent at 90 degrees in the first direction Z1 from the base 4A, and the sixth part 36 is bent at 90 degrees in the fifth direction Y1 from the third side wall part 7A. When the third adjustment part 23A is in the sixth state, as viewed from the third direction X1 along the third side wall part 7A, the third adjustment part 23A has an inverted L shape.

[0043] The third adjustment part 23A has the same configuration as the first adjustment part 21A, but the third adjustment part 23A is smaller than the first adjustment part 21A. As shown in FIG. 6, when the third adjustment part 23A is in the sixth state, the length H4 of the third adjustment part 23A in the first direction Z1 is shorter than the length H2 of the third side wall part 7A.

[0044] When the third adjustment part 23A is in the fifth state, a fourth space S4 is defined between the third side wall part 7A and the fourth side wall part 8A on the first main surface 81 of the base 4A. The fourth space S4 has a length from the third inner wall part 53 to the fourth inner wall part 54 in the fifth direction Y1.

[0045] When the third adjustment part 23A is in the sixth state, a fifth space S5 smaller than the fourth space S4 is defined between the fourth side wall part 8A and the third adjustment part 23A on the first main surface 81 of the base 4A. The fifth space S5 is smaller than the fourth space S4 by the length L13 of a plurality of third adjustment parts 23A in the fifth direction Y1.

[0046] The fourth adjustment part 24A adjusts the space inside the cushioning material 2A in the fifth direction Y1 and the sixth direction Y2. The fourth adjustment part 24A is formed by a part of the base part 4A. The fourth adjustment part 24A can be in a seventh state and an eighth state. The seventh state is a state in which the fourth adjustment part 24A is at a position away from the third side wall part 7A in the fifth direction Y1 and does not bend. The eighth state is a state in which the fourth adjustment part 24A is at a position away from the third side wall part 7A in the fifth direction Y1 and bends in the first direction Z1. As shown in FIG. 7, in the eighth state, the fourth adjustment part 24A bends from the base part 4A at 90 degrees in the first direction Z1. When the fourth adjustment part 24A is in the eighth state, when viewed from the fourth direction X2, the fourth adjustment part 24A has an inverted L shape. The fourth adjustment part 24A has an insertion piece 75. When the fourth adjustment part 24A is in the eighth state, it is inserted into the through hole 71 of the lid part 10A. When the fourth adjustment part 24A is in the eighth state and the lid part 10A is closed, a part of the fourth adjustment part 24A is inserted into the through hole 71. When the fourth adjustment part 24A is in the eighth state and the lid part 10A is closed, the insertion piece 75 of the fourth adjustment part 24A is inserted into the through hole 71.

[0047] When the fourth adjustment part 24A is in the eighth state, on the first main surface 81 of the base part 4A, a sixth space S6 smaller than the fourth space S4 is defined between the fourth side wall part 8A and the fourth adjustment part 24A.

[0048] As shown in FIG. 5, the first support part 41A supports the first adjustment part 21A when the first adjustment part 21A is in the second state. The first support part 41A is formed from a part of the first side wall part 5A. The first support part 41A is connected to the first adjustment part 21A. The first support part 41A is connected to the second part 32 of the first adjustment part 21A. In the second state, the first support part 41A bends in the second direction Z2 from the connection part with the second part 32 of the first adjustment part 21A. In the second state, the first support part 41A is in contact with the base part 4A.

[0049] The second support portion 42A supports the second adjustment portion 22A when the second adjustment portion 22A is in the fourth state. The second support portion 42A supports the second adjustment portion 22A by a structure similar to that of the first support portion 41A shown in FIG. 5. As shown in FIG. 2, the second support portion 42A is formed from a part of the second side wall portion 6A. The second support portion 42A is connected to the second adjustment portion 22A. The second support portion 42A is connected to the fourth portion 34 of the second adjustment portion 22A. In the fourth state, the second support portion 42A bends in the second direction Z2 from the connection portion with the fourth portion 34 of the second adjustment portion 22A. In the fourth state, the second support portion 42A contacts the base portion 4A.

[0050] As shown in FIG. 6, each of the plurality of third support portions 43A supports each of the plurality of third adjustment portions 23A when the plurality of third adjustment portions 23A are in the sixth state. The plurality of third support portions 43A are formed from a part of the third side wall portion 7A. The plurality of third support portions 43A are connected to the third adjustment portion 23A. Each of the plurality of third support portions 43A is connected to the sixth portion 36 of each of the plurality of third adjustment portions 23A. In the sixth state, the third support portion 43A contacts the base portion 4A.

[0051] As shown in FIGS. 2 and 5, the first inner side wall portion 51 is inside the first side wall portion 5A and outside the first adjustment portion 21A. The first inner side wall portion 51 has a notch 55 into which the first support portion 41A can be inserted.

[0052] As shown in FIG. 2, the second inner side wall portion 52 is inside the second side wall portion 6A and outside the second adjustment portion 22A in a state where the blank sheet 1A is assembled. Similar to the first inner side wall portion 51 having the notch 55, the second inner side wall portion 52 has a notch into which the second support portion 42A can be inserted.

[0053] As shown in FIGS. 6 and 7, the third inner side wall portion 53 is inside the third side wall portion 7A and outside the third adjustment portion 23A.

[0054] The fourth inner side wall portion 54 is inside the fourth side wall portion 8A.

[0055] A method of storing an object in the cushioning material 2A in this embodiment will be described.

[0056] FIG. 8 is a plan view of the first electronic device 91 stored in the cushioning material 2A shown in FIG. 2. FIG. 9 is a plan view of the second electronic device 92 stored in the cushioning material 2A shown in FIG. 3. FIG. 10 is a plan view of the third electronic device 93 stored in the cushioning material 2A shown in FIG. 4.

[0057] In this embodiment, a method of storing an object in the cushioning material 2A will be described, where the object to be stored in the space inside the cushioning material 2A is an electronic device. The electronic devices in this embodiment are the first electronic device 91, the second electronic device 92, and the third electronic device 93. As shown in FIGS. 8 to 10, the first electronic device 91, the second electronic device 92, and the third electronic device 93 each have a rectangular shape. For example, the first electronic device 91, the second electronic device 92, and the third electronic device 93 are each a computer. The first electronic device 91, the second electronic device 92, and the third electronic device 93 each have different sizes.

[0058] The method of storing an object in the cushioning material 2A includes a step of adjusting the space inside the cushioning material 2A and a step of storing the object in the adjusted space inside the cushioning material 2A.

[0059] The step of adjusting the space inside the cushioning material 2A will be described.

[0060] The space inside the cushioning material 2A can be adjusted to a space capable of storing the first electronic device 91, the second electronic device 92, or the third electronic device 93. The space inside the cushioning material 2A can be adjusted to a space capable of storing the first electronic device 91, the second electronic device 92, or the third electronic device 93 by each of the first adjustment unit 21A, the second adjustment unit 22A, the third adjustment unit 23A, and the fourth adjustment unit 24A. The space inside the cushioning material 2A can be adjusted to the dimensions of the first electronic device 91, the second electronic device 92, or the third electronic device 93 in the cushioning material 2A.

[0061] As shown in FIG. 8, the dimensions of the first space S1 are substantially the same as the dimensions of the first electronic device 91 in the third direction X1 and the fourth direction X2. The dimensions of the fourth space S4 are substantially the same as the dimensions of the first electronic device 91 in the fifth direction Y1 and the sixth direction Y2. "Substantially" means including an error of 5% or more and 10% or less, which is an error such that the space inside the cushioning material 2A is larger.

[0062] To accommodate the first electronic device 91 in the cushioning material 2A, the space inside the cushioning material 2A can be adjusted to the first space S1 and the fourth space S4. The space inside the cushioning material 2A can be adjusted to the first space S1 by setting the first adjustment part 21A to the first state and the second adjustment part 22A to the third state. The space inside the cushioning material 2A can be adjusted to the fourth space S4 by setting the third adjustment part 23A to the fifth state and the fourth adjustment part 24A to the seventh state. That is, by not bending the first adjustment part 21A, the second adjustment part 22A, the third adjustment part 23A, and the fourth adjustment part 24A in the first direction Z1, the space inside the cushioning material 2A can be adjusted to the first space S1 and the fourth space S4.

[0063] As shown in FIGS. 8 and 9, the second electronic device 92 is different from the first electronic device 91 in terms of the lengths in the third direction X1 and the fourth direction X2, and the lengths in the fifth direction Y1 and the sixth direction Y2. The lengths of the second electronic device 92 in the third direction X1 and the fourth direction X2, and the lengths in the fifth direction Y1 and the sixth direction Y2 are smaller than the lengths of the first electronic device 91 in the third direction X1 and the fourth direction X2, and the lengths in the fifth direction Y1 and the sixth direction Y2.

[0064] As shown in FIG. 9, the dimensions of the second space S2 are substantially the same as the dimensions of the second electronic device 92 in the third direction X1 and the fourth direction X2. The dimensions of the sixth space S6 are substantially the same as the dimensions of the second electronic device 92 in the fifth direction Y1 and the sixth direction Y2.

[0065] To accommodate the second electronic device 92 in the cushioning material 2A, the space inside the cushioning material 2A can be adjusted to the second space S2 and the sixth space S6.

[0066] The space inside the buffer member 2A can be adjusted from the first space S1 to the second space S2 by the first adjustment part 21A and the second adjustment part 22A. The space inside the buffer member 2A can be adjusted from the first space S1 to the second space S2 by deforming the first adjustment part 21A from the first state to the second state and deforming the second adjustment part 22A from the third state to the fourth state. That is, by bending the first adjustment part 21A and the second adjustment part 22A in the first direction Z1, the space inside the buffer member 2A can be adjusted to the second space S2.

[0067] Also, when the first adjustment part 21A is in the second state and the second adjustment part 22A is in the fourth state, the first adjustment part 21A and the second adjustment part 22A are each supported by the first support part 41A and the second support part 42A, respectively. By the first support part 41A and the second support part 42A each supporting the first adjustment part 21A and the second adjustment part 22A, the space inside the buffer member 2A adjusted by the first adjustment part 21A and the second adjustment part 22A, that is, the second space S2, can be maintained.

[0068] The space inside the buffer member 2A is adjusted from the fourth space S4 to the sixth space S6 by the fourth adjustment part 24A. The space inside the buffer member 2A can be adjusted from the fourth space S4 to the sixth space S6 by deforming the fourth adjustment part 24A from the seventh state to the eighth state. That is, by bending the fourth adjustment part 24A in the first direction Z1, the space inside the buffer member 2A is adjusted to the sixth space S6.

[0069] When the fourth adjustment part 24A is in the eighth state, by closing the lid part 10A, the insertion piece 75 of the fourth adjustment part 24A is inserted into the through hole 71 of the lid part 10A. By the insertion piece 75 being inserted into the through hole 71, the fourth adjustment part 24A can be maintained in a bent state in the first direction Z1. That is, by the insertion piece 75 being inserted into the through hole 71, the space inside the buffer member 2A adjusted by the fourth adjustment part 24A, that is, the sixth space S6, can be maintained.

[0070] As shown in FIGS. 8 to 10, the third electronic device 93 has different lengths in the fifth direction Y1 and the sixth direction Y2 from the first electronic device 91 and the second electronic device 92. As shown in FIGS. 8 and 10, the lengths of the fifth direction Y1 and the sixth direction Y2 of the third electronic device 93 are smaller than the lengths of the fifth direction Y1 and the sixth direction Y2 of the first electronic device 91. As shown in FIGS. 9 and 10, the lengths of the fifth direction Y1 and the sixth direction Y2 of the third electronic device 93 are larger than the lengths of the fifth direction Y1 and the sixth direction Y2 of the second electronic device 92.

[0071] As shown in FIG. 10, the dimensions of the first space S1 are substantially the same as the dimensions of the third direction X1 and the fourth direction X2 of the third electronic device 93. The dimensions of the fifth space S5 are substantially the same as the dimensions of the fifth direction Y1 and the sixth direction Y2 of the third electronic device 93.

[0072] In order to accommodate the third electronic device 93 in the space inside the cushioning material 2A, the cushioning material 2A can adjust the space inside the cushioning material 2A to the first space S1 and the fifth space S5.

[0073] The space inside the cushioning material 2A can be adjusted from the fourth space S4 to the fifth space S5 by the third adjustment part 23A. The space inside the cushioning material 2A can be adjusted from the fourth space S4 to the fifth space S5 by deforming the third adjustment part 23A from the fifth state to the sixth state. That is, by bending the third adjustment part 23A in the first direction Z1, the space inside the cushioning material 2A can be adjusted to the fifth space S5.

[0074] Also, when the third adjustment part 23A is in the sixth state, the third adjustment part 23A is supported by the third support part 43A. By the third support part 43A supporting the third adjustment part 23A, the space inside the cushioning material 2A adjusted by the third adjustment part 23A, that is, the fifth space S5, can be maintained.

[0075] After the step of adjusting the internal space of the buffer material 2A is completed, a step of storing an object in the adjusted internal space of the buffer material 2A is performed. After the step of adjusting the internal space of the buffer material 2A is completed, in the step of storing an object in the adjusted internal space of the buffer material 2A, the first electronic device 91, the second electronic device 92, or the third electronic device 93 can be stored in the internal space of the buffer material 2A.

[0076] The effect of the blank sheet 1A in this embodiment will be described.

[0077] The blank sheet 1A assembles the buffer material 2A by folding. The buffer material 2A assembled by the blank sheet 1A includes a base portion 4A, a first side wall portion 5A, a second side wall portion 6A, a first adjustment portion 21A, and a first support portion 41A. The base portion 4A has a first main surface 81 and a second main surface opposite to the first main surface 81. The base portion 4A has a first end portion and a second end portion facing the first end portion. The first side wall portion 5A extends from the first end portion of the base portion 4A in a first direction Z1 from the second main surface toward the first main surface 81. The second side wall portion 6A extends from the second end portion of the base portion 4A in the first direction Z1. The first adjustment portion 21A is formed of a part of the base portion 4A. The first adjustment portion 21A is located at a position away from the first side wall portion 5A in a third direction X1 from the first end portion toward the second end portion, and can be deformed into a first state in which it does not bend and a second state in which it bends in the first direction Z1 When the first adjustment portion 21A is in the second state, the first support portion 41A supports the first adjustment portion 21A. When the first adjustment portion 21A is in the first state, a first space S1 is defined between the first side wall portion 5A and the second side wall portion 6A on the first main surface 81 of the base portion 4A. When the first adjustment portion 21A is in the second state, a third space S3 smaller than the first space S1 is defined between the first adjustment portion 21A and the second side wall portion 6A on the first main surface 81 of the base portion 4A.

[0078] With such a configuration, the blank sheet 1A can assemble a buffer material 2A whose space for accommodating an object can be easily adjusted. By bending the first adjustment part 21A, the buffer material 2A can adjust the internal space of the buffer material 2A from the first space S1 to the third space S3. Therefore, the buffer material 2A can easily adjust the internal space of the buffer material 2A for accommodating each object of different sizes by the first adjustment part 21A.

[0079] Also, when the first adjustment part 21A is in the second state, the first adjustment part 21A can be maintained in a bent state in the first direction Z1 by being supported by the first support part 41A. By maintaining the first adjustment part 21A in a bent state in the first direction Z1, the third space S3 adjusted by the first adjustment part 21A can be maintained. Therefore, the object accommodated in the third space S3 can be accommodated in a state having buffering properties by the buffer material 2A.

[0080] The buffer material 2A assembled by the blank sheet 1A further includes a second adjustment part 22A and a second support part 42A. The second adjustment part 22A is formed as a part of the base 4A. The second adjustment part 22A can be deformed into a third state where it does not bend and a fourth state where it bends in the first direction Z1 at a position away from the second side wall part 6A in the fourth direction X2 opposite to the third direction X1. The second support part 42A supports the second adjustment part 22A when the second adjustment part 22A is in the fourth state. When the first adjustment part 21A is in the second state and the second adjustment part 22A is in the third state, a second space S2 smaller than the third space S3 is defined between the first adjustment part 21A and the second adjustment part 22A on the first main surface 81 of the base 4A.

[0081] With such a configuration, the blank sheet 1A can assemble the cushioning material 2A whose space for accommodating an object can be easily adjusted. By bending the first adjustment part 21A and the second adjustment part 22A, the cushioning material 2A can adjust the internal space from the first space S1 to the second space S2. Therefore, the cushioning material 2A can easily adjust the internal space of the cushioning material 2A for accommodating each object of different sizes by the first adjustment part 21A and the second adjustment part 22A.

[0082] Also, when the second adjustment part 22A is in the fourth state, the second adjustment part 22A can be maintained in a state of being bent in the first direction Z1 by being supported by the second support part 42A. By maintaining the second adjustment part 22A in a state of being bent in the first direction Z1, the space adjusted by the second adjustment part 22A can be maintained.

[0083] When the difference in size between each object of different sizes is large, adjusting the internal space of the cushioning material 2A with the first adjustment part 21A and the second adjustment part 22A can reduce the sizes of the first adjustment part 21A and the second adjustment part 22A. Since the sizes of the first adjustment part 21A and the second adjustment part 22A can be reduced, it becomes easier to bend the first adjustment part 21A and the second adjustment part 22A in the first direction Z1.

[0084] When the first adjustment part 21A is in the second state, the first adjustment part 21A is bent at 90 degrees from the base 4A.

[0085] With such a configuration, it is easy to accommodate an object in the internal space of the cushioning material 2A adjusted by the first adjustment part 21A, and it is easy to maintain the first adjustment part 21A in the second state.

[0086] The base 4A further has a third end that intersects the first end and a fourth end that faces the third end. The cushioning material 2A assembled by the blank sheet 1A further includes a third side wall portion 7A, a fourth side wall portion 8A, a third adjustment portion 23A, and a third support portion 43A. The third side wall portion 7A extends in the first direction Z1 from the third end of the base 4A. The fourth side wall portion 8A extends in the first direction Z1 from the fourth end of the base 4A. The third adjustment portion 23A is formed of a part of the base 4A. The third adjustment portion 23A is deformable between a fifth state in which it does not bend and a sixth state in which it bends in the first direction Z1 at a position away from the third side wall portion 7A in the fifth direction Y1 from the third end to the fourth end of the base 4A. When a plurality of the third adjustment portions 23A are in the fifth state, a fourth space S4 is defined between the third side wall portion 7A and the fourth side wall portion 8A on the first main surface 81 of the base 4A. When a plurality of the third adjustment portions 23A are in the sixth state, a fifth space S5 smaller than the fourth space S4 is defined between the fourth side wall portion 8A and the plurality of the third adjustment portions 23A on the first main surface 81 of the base 4A.

[0087] With such a configuration, the blank sheet 1A can assemble the cushioning material 2A whose space for accommodating an object can be easily adjusted. By bending the third adjustment portion 23A, the cushioning material 2A can adjust the internal space of the cushioning material 2A from the fourth space S4 to the fifth space S5. Therefore, the cushioning material 2A can easily adjust the internal space of the cushioning material 2A for accommodating each of objects of different sizes by the third adjustment portion 23A.

[0088] Further, when the third adjustment portion 23A is in the sixth state, the third adjustment portion 23A can be maintained in the bent state in the first direction Z1 by being supported by the third support portion 43A. By maintaining the third adjustment portion 23A in the bent state in the first direction Z1, the space adjusted by the third adjustment portion 23A can be maintained.

[0089] The cushioning material 2A assembled by the blank sheet 1A is located inside the first side wall portion 5A and further includes a first inner side wall portion 51 located outside the first adjustment portion 21A. The first inner side wall portion 51 has a notch 55 into which the first support portion 41A can be inserted.

[0090] With such a configuration, the impact from the outside of the cushioning material 2A can be mitigated towards the inside. That is, when the object is placed on the first main surface 81 at the base portion 4A of the cushioning material 2A, the first inner side wall portion 51 can mitigate the impact transmitted to the object when the cushioning material 2A receives an impact from the outside of the cushioning material 2A.

[0091] In addition, when the first support portion 41A is inserted into the notch 55 of the first inner side wall portion 51, the first support portion 41A can more easily support the first adjustment portion 21A when the first adjustment portion 21A is in the second state.

[0092] A part of the first adjustment portion 21A is formed by the first side wall portion 5A. In the second state, the first adjustment portion 21A is formed by a first portion 31 obtained by bending a part of the base portion 4A in the first direction Z1 and a second portion 32 obtained by bending a part of the first side wall portion 5A in the third direction X1.

[0093] With such a configuration, the blank sheet 1A can assemble a cushioning material 2A whose space for accommodating an object can be easily adjusted. By having the first portion 31 and the second portion 32, the first adjustment portion 21A can be bent more easily. Also, by having the first portion 31 and the second portion 32, the first adjustment portion 21A can easily maintain the state of being bent in the first direction Z1. That is, the space inside the cushioning material 2A adjusted by the first adjustment portion 21A can be maintained.

[0094] The first support portion 41A is formed from a part of the first side wall portion 5A. The first support portion 41A is connected to a plurality of first adjustment portions 21A.

[0095] With such a configuration, when the first adjustment part 21A is in the second state, the first support part 41A can support the first adjustment part 21A more stably. And by stably supporting the first adjustment part 21A, the first adjustment part 21A can maintain the space inside the adjusted cushioning material 2A.

[0096] When one or more first adjustment parts 21A are in the second state, in the fifth direction Y along the first side wall part 5A 1 or Viewed from the side, one or more first adjustment parts 21A have an inverted L shape.

[0097] With such a configuration, the object can be more stably stored in the cushioning material 2A.

[0098] When one or more first adjustment parts 21A are in the second state, the length of the first adjustment part 21A in the fifth direction Y1 is longer than the length of the first adjustment part 21A in the third direction X1.

[0099] Since the length of the first adjustment part 21A in the fifth direction Y1 is longer than the length of the first adjustment part 21A in the third direction X1, even when the first adjustment part 21A receives a force in the fourth direction X2 from the object stored in the cushioning material 2A, it is difficult to deform in the fourth direction X2. Therefore, when the first adjustment part 21A is in the second state, the first adjustment part 21A can maintain the second state more stably.

[0100] The cushioning material 2A assembled by the blank sheet 1A further includes a fourth adjustment part 24A and a lid part 10A. The fourth adjustment part 24A is formed as a part of the base part 4A. The fourth adjustment part 24A is from the 3 side wall part 7 A to the 5 direction Y1It can be deformed into a seventh state where it does not bend and an eighth state where it bends in the first direction Z1 at a distant position. The lid portion 10A can be opened and closed and has a through-hole 71 into which the fourth adjustment portion 24A is inserted when it is in the eighth state. When the fourth adjustment portion 24A is in the eighth state, a sixth space S6 smaller than the first space S1 is defined between the fourth side wall portion 8A and the fourth adjustment portion 24A on the first main surface 81 of the base portion 4A. When the fourth adjustment portion 24A is in the eighth state and the lid portion 10A is closed, a part of the fourth adjustment portion 24A is inserted into the through-hole 71.

[0101] With such a configuration, the blank sheet 1A can assemble the cushioning material 2A whose space for storing the object can be easily adjusted. By bending the fourth adjustment portion 24A, the cushioning material 2A can adjust the internal space of the cushioning material 2A from the fourth space S4 to the sixth space S6. Therefore, the cushioning material 2A can easily adjust the internal space of the cushioning material 2A for storing each object of different sizes by the fourth adjustment portion 24A.

[0102] Also, when the fourth adjustment portion 24A is in the eighth state and the lid portion 10A is closed, a part of the fourth adjustment portion 24A is inserted into the through-hole 71 of the lid portion 10A, so that the fourth adjustment portion 24A is maintained in a state of being bent in the first direction Z1. Therefore, the object can be stored in the cushioning material 2A while maintaining the sixth space S6.

[0103] The cushioning material 2A is assembled by folding the above-described blank sheet 1A.

[0104] With such a configuration, the cushioning material 2A can easily adjust the space for storing the object. Also, the cushioning material 2A can adjust the internal space of the cushioning material 2A only with the blank sheet 1A. Also, the cushioning material 2A can adjust the internal space of the cushioning material 2A by folding. Therefore, the use of other members can be suppressed to adjust the internal space of the cushioning material 2A.

[0105] The storage method is a method of storing an object in the buffer material 2A described above. The storage method includes a step of adjusting the internal space of the buffer material 2A and a step of storing the object in the adjusted internal space of the buffer material 2A. In the step of adjusting the internal space of the buffer material 2A, the internal space of the buffer material 2A is adjusted by deforming the first adjustment part 21A into the first state or the second state.

[0106] When the object is stored in the buffer material 2A, the object can be cushioned from impacts from the outside of the buffer material 2A by the buffer material 2A. For example, when an electronic device is stored in the buffer material 2A, the electronic device can be cushioned from impacts from the outside of the buffer material 2A by the buffer material 2A.

[0107] Also, by such a storage method, a plurality of objects of different sizes can each be stored in the internal space of the buffer material 2A adjusted according to each. By each of the plurality of objects of different sizes being stored in the adjusted internal space of the buffer material 2A, the impact received from the outside of the buffer material 2A can be cushioned.

[0108] For example, the object is an electronic device, and the plurality of electronic devices are the first electronic device 91, the second electronic device 92, or the third electronic device 93. The first electronic device 91, the second electronic device 92, and the third electronic device 93 each have different sizes. The internal space of the buffer material 2A can be adjusted to store the first electronic device 91, the second electronic device 92, or the third electronic device 93. By the first electronic device 91, the second electronic device 92, or the third electronic device 93 being stored in the internal space of the buffer material 2A adjusted for each, the impact received by the first electronic device 91, the second electronic device 92, or the third electronic device 93 from the outside of the buffer material 2A can be cushioned.

[0109] Note that, in the present embodiment, although the object has been described as an electronic device, the object may not be an electronic device.

[0110] Note that although the blank sheet 1A has been described as being made of cardboard, it is not limited to this. For example, the blank sheet 1A may be made of thick paper, film, or the like.

[0111] Note that although the blank sheet 1A has been described as including the third side wall portion 7A, the fourth side wall portion 8A, the lid portion 10A, the second adjustment portion 22A, the third adjustment portion 23A, the fourth adjustment portion 24A, the second support portion 42A, and the third support portion 43A, it is not limited to this. For example, the blank sheet 1A may not include the third side wall portion 7A, the fourth side wall portion 8A, the lid portion 10A, the second adjustment portion 22A, the third adjustment portion 23A, the fourth adjustment portion 24A, the second support portion 42A, and the third support portion 43A.

[0112] Note that although the base portion 4A has been described as being rectangular when viewed from the second direction Z2, the base portion 4A may not be rectangular when viewed from the second direction Z2.

[0113] Note that although the first side wall portion 5A has been described as having a rectangular shape when viewed from the third direction X1, the first side wall portion 5A may not be rectangular when viewed from the third direction X1.

[0114] Note that although the second side wall portion 6A has been described as having a rectangular shape when viewed from the fourth direction X2, the second side wall portion 6A may not be rectangular when viewed from the fourth direction X2.

[0115] Note that although the lid portion 10A has been described as being connected to the third side wall portion 7A, it is not limited to this. For example, the lid portion 10A may be connected to the fourth side wall portion 8A.

[0116] Note that although the first adjustment portion 21A, the second adjustment portion 22A, the third adjustment portion 23A, and the fourth adjustment portion 24A have been described as bending 90 degrees in the first direction Z1 from the base portion 4A, it is not limited to this. For example, the first adjustment portion 21A, the second adjustment portion 22A, the third adjustment portion 23A, and the fourth adjustment portion 24A may bend at 80 degrees or more and 100 degrees or less from the base portion 4A.

[0117] Note that the second part 32 of the first adjustment part 21A has been described as bending at 90 degrees in the third direction X1 from the first side wall part 5A, but it is not limited to this. For example, the second part 32 of the first adjustment part 21A may bend at 80 degrees or more and 100 degrees or less in the third direction X1 from the first side wall part 5A.

[0118] Note that the third part 33 of the second adjustment part 22A has been described as bending at 90 degrees in the fourth direction X2 from the second side wall part 6A, but it is not limited to this. For example, the third part 33 of the second adjustment part 22A may bend at 80 degrees or more and 100 degrees or less in the fourth direction X2 from the second side wall part 6A.

[0119] Note that the fifth part 35 of the third adjustment part 23A has been described as bending at 90 degrees in the fifth direction Y1 from the third side wall part 7A, but it is not limited to this. For example, the fifth part 35 of the third adjustment part 23A may bend at 80 degrees or more and 100 degrees or less in the fifth direction Y1 from the third side wall part 7A.

[0120] Note that an example has been described in which the fourth adjustment part 24A can be deformed into a seventh state in which it does not bend and an eighth state in which it bends in the first direction Z1 at a position away from the third side wall part 7A in the fifth direction Y1, but it is not limited to this. For example, the fourth adjustment part 24A may be deformable into a state in which it does not bend and a state in which it bends in the first direction Z1 at a position away from the first side wall part 5A in the third direction X1.

[0121] Note that the fourth adjustment part 24A has been described as adjusting the internal space of the cushioning material 2A in the fifth direction Y1 and the sixth direction Y2, but it is not limited to this. For example, the fourth adjustment part 24A may adjust the internal space of the cushioning material 2A in the third direction X1 and the fourth direction X2.

[0122] Note that an example in which the blank sheet 1A includes one first adjustment part 21A and one second adjustment part 22A has been illustrated in FIG. 1, but the blank sheet 1A may include a plurality of first adjustment parts 21A and a plurality of second adjustment parts 22A.

[0123] Although an example in which the blank sheet 1A includes a plurality of third adjusting parts 23A has been described, the blank sheet 1A may include one third adjusting part 23A.

[0124] Although an example in which the blank sheet 1A includes one first support part 41A and one second support part 42A has been illustrated in FIG. 1, the blank sheet 1A may include a plurality of first support parts 41A and a plurality of second support parts 42A.

[0125] Although it has been described that the blank sheet 1A includes one fourth adjusting part 24A and the lid part 10A has one through hole 71, the present invention is not limited to this. For example, the blank sheet 1A may include a plurality of fourth adjusting parts 24A, and the lid part 10A may have a plurality of through holes 71.

[0126] Although it has been described that each of one first adjusting part 21A, one second adjusting part 22A, and one third adjusting part 23A can be supported by each of one first support part 41A, one second support part 42A, and one third support part 43A, the present invention is not limited to this. For example, each of one first adjusting part 21A, one second adjusting part 22A, and one third adjusting part 23A may be supported by each of a plurality of first support parts 41A, a plurality of second support parts 42A, and a plurality of third support parts 43A.

[0127] (Embodiment 2) FIG. 11 is a plan view of an example of a blank sheet 1B according to Embodiment 2. FIGS. 12 and 13 are perspective views of a cushioning material 2B assembled by bending the blank sheet 1B shown in FIG. 11.

[0128] In Embodiment 2, a configuration different from that in Embodiment 1 will be described.

[0129] In Embodiment 2, it is different from Embodiment 1 in that the first adjustment portion 21B is not formed from a part of the first side wall portion 5B and the second adjustment portion 22B is not formed from a part of the second side wall portion 6B. Further, in Embodiment 2, it is different from Embodiment 1 in that one first adjustment portion 21B is supported by a plurality of first support portions 41B, and it is also different from Embodiment 1 in that the first support portion 41B is formed from a part of the base portion 4B.

[0130] (Blank sheet) The blank sheet 1B shown in FIG. 11 is bent to assemble the cushioning material 2B shown in FIGS. 12 and 13. The blank sheet 1B is bent along the folding line 61 or the cut 65 to assemble the cushioning material 2B.

[0131] (Cushioning material) As shown in FIGS. 12 and 13, the cushioning material 2B includes a first adjustment portion 21B, a second adjustment portion 22B, a plurality of first support portions 41B, and a plurality of second support portions 42B.

[0132] The first adjustment portion 21B and the second adjustment portion 22B are each formed from a part of the base portion 4B. As shown in FIGS. 12 and 13, the first adjustment portion 21B and the second adjustment portion 22B are bent from the base portion 4B in the first direction Z1 to bend.

[0133] The plurality of first support portions 41B support one first adjustment portion 21B. The plurality of first support portions 41B are formed from a part of the base portion 4B. The plurality of first support portions 41B are connected to the first adjustment portion 21B. Each of the plurality of first support portions 41B is connected to each of both ends of the first adjustment portion 21B. When the first adjustment portion 21B is in the second state, the plurality of first support portions 41B have a positional relationship bent from the base portion 4B in the first direction Z1 and contact the first side wall portion 5B. When the first adjustment portion 21B is in the second state, the plurality of first support portions 41B have a positional relationship bent from the base portion 4B in the first direction Z1 via the first adjustment portion 21B and contact the first side wall portion 5B. When the first adjustment portion 21B is in the second state, the plurality of first support portions 41B are inserted into the notch 55 provided in the first inner side wall portion 51. When the first adjustment portion 21B is in the second state, the plurality of first support portions 41B are bent from the first adjustment portion 21B in the fourth direction X2 opposite to the 3 direction X1 first direction. When the first adjustment portion 21B is in the second state, the plurality of first support portions 41B are bent from the first adjustment portion 21B at 90 degrees in the fourth direction X2.

[0134] When the first adjustment portion 21 B is in the second state, when viewed from the fifth direction Y1 along the first side wall portion 5B, the plurality of first support portions 41B are inclined in a direction approaching the base portion 4B toward the first side wall portion 5B.

[0135] The plurality of second support portions 42B support one second adjustment portion 22B. The plurality of second support portions 42B are formed from a part of the base portion 4B. The plurality of second support portions 42B are connected to the second adjustment portion 22B. Each of the plurality of second support portions 42B is connected to each of both ends of the second adjustment portion 22B. When the second adjustment portion 22B is in the fourth state, the plurality of second support portions 42B have a positional relationship bent from the base portion 4B in the first direction Z1 and contact the second side wall portion 6B. When the second adjustment portion 22B is in the fourth state, the plurality of second support portions 42B have a positional relationship bent from the base portion 4B in the first direction Z1 via the second adjustment portion 22B systemIt has contact with the second side wall portion 6B. When the second adjustment portion 22B is in the fourth state, the plurality of second support portions 42B are inserted into the notch 55 provided in the second inner wall portion 52. When the second adjustment portion 22B is in the fourth state, the plurality of second support portions 42B are bent in the third direction X1. When the second adjustment portion 22B is in the fourth state, the plurality of second support portions 42B are bent at 90 degrees in the third direction X1 from the second adjustment portion 22B.

[0136] When the second adjustment portion 22B is in the fourth state, as viewed from the fifth direction Y1, the plurality of second support portions 42B are inclined in a direction approaching the base portion 4B toward the second side wall portion 6B.

[0137] Note that although the first inner wall portion 51 and the second inner wall portion 52 are shown in FIGS. 12 and 13 as each having one notch 55 provided therein, the present invention is not limited thereto. For example, the first inner wall portion 51 and the second inner wall portion 52 may be provided with a plurality of notches 55. Each of the plurality of notches 55 may be insertable with each of the plurality of first support portions 41B or each of the plurality of second support portions 42B.

[0138] The effect of the blank sheet 1B in the second embodiment will be described.

[0139] The blank sheet 1B is bent to assemble the cushioning material 2B. The cushioning material 2B assembled by the blank sheet 1B includes a base portion 4B, a first side wall portion 5B, a second side wall portion 6B, a first adjustment portion 21B, and a plurality of first support portions 41B. The base portion 4B has a first main surface 81 and a second main surface opposite to the first main surface 81. The base portion 4B has a first end portion and a second end portion facing the first end portion. The first side wall portion 5B extends from the first end portion of the base portion 4B in a first direction Z1 from the second main surface toward the first main surface 81. The second side wall portion 6Bextends from the second end of the base portion 4B in the first direction Z1. The first adjustment portion 21B is formed from the base portion 4B. The first adjustment portion 21B can be deformed between a first state in which it does not bend and a second state in which it bends in the first direction Z1 at a position away from the first side wall portion 5B in the third direction X1 from the first end to the second end. The plurality of first support portions 41B support the first adjustment portion 21B when the first adjustment portion 21B is in the second state. The plurality of first support portions 41B are formed from a part of the base portion 4B. When the first adjustment portion 21B is in the second state, the plurality of first support portions 41B have a positional relationship bent in the first direction Z1 from the base portion 4B and contact the first side wall portion 5B. When the first adjustment portion 21B is in the first state, a first space S1 is defined between the first side wall portion 5B and the second side wall portion 6B on the first main surface 81 of the base portion 4B. When the first adjustment portion 21B is in the second state, a third space S3 smaller than the first space S1 is defined between the first adjustment portion 21B and the second side wall portion 6B on the first main surface 81 of the base portion 4B.

[0140] With such a configuration, the blank sheet 1B can assemble the cushioning material 2B whose space for storing the object can be easily adjusted. The cushioning material 2B can adjust the internal space of the cushioning material 2B from the first space S1 to the third space S3 by bending the first adjustment portion 21B. Therefore, the cushioning material 2B can easily adjust the internal space of the cushioning material 2B for storing each object of different sizes by the first adjustment portion 21B.

[0141] Also, when the first adjustment portion 21B is in the second state, the plurality of first support portions 41B contact the first side wall portion 5 B so that the first adjustment portion 21B can be maintained in the second state.

[0142] The first adjustment part 21B is connected to a plurality of first support parts 41B. When the first adjustment part 21B is in the second state, the plurality of first support parts 41B have a positional relationship bent in the first direction Z1 from the base part 4B via the first adjustment part 21B. When one or more first adjustment parts 21B are in the second state, the plurality of first support parts 41B are bent in the fourth direction X2 opposite to the third direction X1 from the first adjustment part 21B.

[0143] With such a configuration, the blank sheet 1B can assemble the cushioning material 2B whose space for storing the object can be easily adjusted. By connecting the first adjustment part 21B and the plurality of first support parts 41B, the first adjustment part 21B and the first support part 41B can be bent simultaneously. Also, by connecting the first adjustment part 21B and the plurality of first support parts 41B, the first support part 41B can support the first adjustment part 21B better.

[0144] The cushioning material 2B assembled by the blank sheet 1B further includes a first inner wall part 51. The first inner wall part 51 is inside the first side wall part 5B and outside the first adjustment part 21B. When the first adjustment part 21B is in the second state, a notch 55 into which the plurality of first support parts 41B are inserted is provided in the first inner wall part 51.

[0145] When the first adjustment part 21B is in the second state, by inserting the plurality of first support parts 41B into the notch 55 of the first inner wall part 51, the first support part 41B can maintain the first adjustment part 21B in a state bent in the first direction Z1.

[0146] When the first adjustment part 21B is in the second state, as viewed from the fifth direction Y1 along the first side wall part 5B, the plurality of first support parts 41B are inclined in a direction approaching the base part 4B toward the first side wall part 5B.

[0147] With such a configuration, when the first adjustment part 21B is in the second state, the plurality of first support parts 41B can be easily inserted into the notch 55 of the first inner wall part 51, so that the plurality of first support parts 41B can be maintained in a state where the first adjustment part 21B is bent in the first direction Z1.

[0148] Although an example in which the buffer member 2B includes one first adjustment part 21B and one second adjustment part 22B has been described, the buffer member 2B may include a plurality of first adjustment parts 21B and a plurality of second adjustment parts 22B.

[0149] Although an example in which the buffer member 2B includes a plurality of first support parts 41B for one first adjustment part 21B has been described, the buffer member 2B may include a plurality of first support parts 41B for one first adjustment part 21B.

[0150] Although it has been described that the first adjustment part 21B and the plurality of first support parts 41B are connected, the first adjustment part 21B and the plurality of first support parts 41B may not be connected. For example, the first support part 41B may be connected to the base part 4B and may be bendable in the first direction Z1 from the base part 4B. For example, the first support part 41B may support the first adjustment part 21B by contacting the first adjustment part 21B. Also, a through hole into which a part of the first support part 41 B can be inserted is provided in the first adjustment part 21B, and the first support part 41B may support the first adjustment part 21B in the second state by being inserted into the through hole of the first adjustment part 21B.

[0151] Although an example in which one notch 55 is provided in the first inner wall part 51 has been described, the present invention is not limited to this. For example, a plurality of notches 55 may be provided in the first inner wall part 51. The plurality of notches 55 may be provided in the same number as the number of the first support parts 41B.

[0152] When the first adjustment part 21B is in the second state, the plurality of first support parts 41B may be bent in the first direction Z1 from the base part 4B. For example, the first support part 41B may be bent in the first direction Z1 at 80 degrees or more and 110 degrees or less from the base part 4B.

[0153] In addition, when the first adjustment part 21B is in the second state, although it has been described that the plurality of first support parts 41B are bent from the first adjustment part 21B by 90 degrees in the fourth direction X2, it is not limited to this. For example, when the first adjustment part 21B is in the second state, the plurality of first support parts 41B are bent from the first adjustment part 21B by 80 degrees or more and 100 degrees or less in the fourth direction X2.

[0154] In addition, when the second adjustment part 22B is in the second state, the plurality of second support parts 42B may be bent from the base part 4B in the first direction Z1. For example, the second support part 42B may be bent from the base part 4B by 90 degrees or more and 110 degrees or less in the first direction Z1.

[0155] In addition, when the second adjustment part 22B is in the fourth state, although it has been described that the plurality of second support parts 42B are bent from the second adjustment part 22B by 90 degrees in the fourth direction X2, it is not limited to this. For example, when the second adjustment part 22B is in the fourth state, the plurality of second support parts 42B are bent from the second adjustment part 22B by 80 degrees or more and 100 degrees or less in the fourth direction X2.

[0156] <Modification Example 1> FIG. 14 is a perspective view of the cushioning material 2C assembled by folding the blank sheet of Modification Example 1.

[0157] The cushioning material 2C assembled by folding the blank sheet of Modification Example 1 is different in the number of the cushioning material 2A assembled by folding the blank sheet 1A of Embodiment 1, the first adjustment part 21A, the second adjustment part 22A, and the third adjustment part 23A.

[0158] The cushioning material 2C includes a plurality of first adjustment parts 21A, a plurality of second adjustment parts 22A, and one third adjustment part 23A.

[0159] The plurality of first adjustment parts 21A are arranged at intervals along the first side wall part 5A. The plurality of second adjustment parts 22A are arranged at intervals along the second side wall part 6A.

[0160] The plurality of first adjusting portions 21A are arranged at intervals along the first side wall portion 5A.

[0161] By arranging the plurality of first adjusting portions 21A at intervals along the first side wall portion 5A, the impact from the outside of the buffer material 2C can be more effectively alleviated.

[0162] <Modification 2> FIG. 15 is an enlarged schematic cross-sectional view of the assembled buffer material 2D obtained by bending the blank sheet of Modification 2.

[0163] As shown in FIG. 15, the buffer material 2D is different from the buffer material 2A of Embodiment 1 in that the first adjusting portion 21A is bent at an angle θ1 from the base portion 4A in the second state. The angle θ1 is the angle between the first main surface 81 of the base portion 4A and the first adjusting portion 21A, and is 80 degrees or more and less than 90 degrees.

[0164] In the second state of the first adjusting portion 21A, since the first adjusting portion 21A is bent at an angle θ1, that is, 80 degrees or more and less than 90 degrees, the space for accommodating the object adjusted by the first adjusting portion 21A is more easily maintained.

[0165] <Modification 3> FIG. 16 is an enlarged schematic cross-sectional view of the assembled buffer material 2E obtained by bending the blank sheet of Modification 3. FIG. 17 is an enlarged plan view of the assembled buffer material 2E obtained by bending the blank sheet of Modification 3.

[0166] As shown in FIGS. 16 and 17, the buffer material 2D is different from the buffer material 2B of Embodiment 2 in that the first adjusting portion 21B is bent at an angle θ2 from the base portion 4B in the second state, and the plurality of first supporting portions 41B are bent at an angle θ3 from the first adjusting portion 21B.

[0167] As shown in FIG. 16, in the second state of the first adjustment part 21B, the first adjustment part 21B is bent from the base part 4B at an angle θ2. The angle θ2 is the angle between the first main surface 81 of the base part 4B and the second adjustment part 22A, and is greater than 90 degrees and equal to or less than 100 degrees.

[0168] In the second state of the first adjustment part 21B, since the first adjustment part 21B is bent at an angle θ2, that is, greater than 90 degrees and equal to or less than 100 degrees, the first adjustment part 21B comes into contact with the first side wall part 5B. When the first adjustment part 21B comes into contact with the first side wall part 5B, it becomes easier to maintain the space for storing the object adjusted by the first adjustment part 21A.

[0169] As shown in FIG. 17, in the second state of the first adjustment part 21B, the plurality of first support parts 41B are each bent from the first adjustment part 21B at an angle θ3. The angle θ3 is the angle between the surface of the first adjustment part 21B facing the first side wall part 5B when the first adjustment part 21B is in the second state and each of the plurality of first support parts 41B, and is greater than 90 degrees and equal to or less than 100 degrees.

[0170] In the second state of the first adjustment part 21B, since the first support part 41B is bent from the first adjustment part 21B at an angle θ3, that is, greater than 90 degrees and equal to or less than 100 degrees, the first support part 41B comes into contact with the inner wall defining the notch 55 of the first inner side wall part 51. When the first support part 41B comes into contact with the inner wall defining the notch 55 of the first inner side wall part 51, it becomes easier to maintain the space for storing the object adjusted by the first adjustment part 21A.

[0171] (Outline of the Embodiment) (1) The blank sheet of the present disclosure is a blank sheet that is assembled into a cushioning material by being folded. In the assembled state of the blank sheet, the blank sheet includes a base portion, a first side wall portion, a second side wall portion, one or more first adjustment portions, and one or more first support portions. The base portion has a first main surface and a second main surface opposite to the first main surface, and has a first end portion and a second end portion facing the first end portion. The first side wall portion extends from the first end portion of the base portion in a first direction from the second main surface toward the first main surface. The second side wall portion extends from the second end portion of the base portion in the first direction. One or more first adjustment portions are formed as a part of the base portion. One or more first adjustment portions can be deformed into a first state in which they do not bend and a second state in which they bend in the first direction at a position away from the first side wall portion in the first direction. One or more first support portions support one or more first adjustment portions when one or more first adjustment portions are in the second state. When one or more first adjustment portions are in the first state, a first space is defined between the first side wall portion and the second side wall portion on the first main surface of the base portion. When one or more first adjustment portions are in the second state, a second space smaller than the first space is defined between one or more first adjustment portions and the second side wall portion on the first main surface of the base portion. 3 When one or more first adjustment portions are in the second state, a second space smaller than the first space is defined between one or more first adjustment portions and the second side wall portion on the first main surface of the base portion.

[0172] (2) In the blank sheet of (1), the blank sheet may further include one or more second adjustment portions and one or more second support portions in the assembled state of the blank sheet. One or more second adjustment portions may be formed as a part of the base portion. One or more second adjustment portions extend from the second side wall portion in a direction opposite to the 3 first direction. 4It may be deformable into a third state that does not bend and a fourth state that bends in the first direction at a position away in the direction. One or more second support portions may support one or more second adjustment portions when the one or more second adjustment portions are in the fourth state. When one or more first adjustment portions are in the second state and one or more second adjustment portions are in the fourth state, a third space smaller than the second space may be defined between the one or more first adjustment portions and the one or more second adjustment portions on the first main surface of the base portion.

[0173] (3) In any one blank sheet of (1) or (2), the plurality of first adjustment portions may be arranged at intervals along the first side wall portion.

[0174] (4) In any one blank sheet of (1) to (3), one or more first adjustment portions may be bent at 80 degrees or more and 100 degrees or less from the base portion in the second state.

[0175] (5) In the blank sheet according to (4), one or more first adjustment portions may be bent at 80 degrees or more and less than 90 degrees from the base portion in the second state.

[0176] (6) In the blank sheet according to (4), one or more first adjustment portions may be bent at more than 90 degrees and 100 degrees or less from the base portion in the second state.

[0177] (7) In any one blank sheet of (1) to (6), the base portion may further have a third end portion intersecting the first end portion and a fourth end portion facing the third end portion. In a state where the blank sheet is assembled, the blank sheet may include a third side wall portion, a fourth side wall portion, one or more third adjustment portions, and one or more third support portions. The third side wall portion may extend in the first direction from the third end portion of the base portion. The fourth side wall portion may extend in the first direction from the fourth end portion of the base portion. One or more third adjustment portions may be formed of a part of the base portion. One or more third adjustment portions are from the third side wall portion, from the third end portion of the base portion toward the fourth end portion of the 5It may be deformable into a non-bending fifth state and a sixth state bent in the first direction at a position separated in the direction. One or more third support portions may support the third adjustment portion when one or more third adjustment portions are in the sixth state. When one or more third adjustment portions are in the fifth state, a fourth space may be defined between the third side wall portion and the fourth side wall portion on the first main surface of the base portion. When one or more third adjustment portions are in the sixth state, a fifth space smaller than the fourth space may be defined between the fourth side wall portion and one or more third adjustment portions on the first main surface of the base portion.

[0178] (8) In any one of the blank sheets (1) to (7), the blank sheet may further include an inner side wall that is inside the first side wall portion and outside one or more first adjustment portions in a state where the blank sheet is assembled. The inner side wall may have a notch into which one or more first support portions can be inserted.

[0179] (9) In any one of the blank sheets (1) to (8), a part of one or more first adjustment portions may be formed by a part of the first side wall portion. In the second state, one or more first adjustment portions may be formed by a first portion that bends a part of the base portion in the first direction and a second portion that bends a part of the first side wall portion in the 3 direction.

[0180] (10) In the blank sheet of (9), one or more first support portions may be formed from a part of the first side wall portion and may be connected to one or more first adjustment portions.

[0181] (11) In the blank sheet of (10), when one or more first adjustment portions are in the second state, when viewed from the 5 direction along the first side wall portion, one or more first adjustment portions may have an inverted L shape.

[0182] (12) In the blank sheet of (11), when one or more first adjustment portions are in the second state, the 5The length in the direction may be longer than the length in the second direction of one or more first adjustment parts.

[0183] (13) In the blank sheet of (1) to (8), one or more first support parts may be formed from a part of the base part. When one or more first adjustment parts are in the second state, one or more first support parts may have a positional relationship bent from the base part in the first direction and may be in contact with the first side wall part.

[0184] (14) In the blank sheet of (13), one or more first adjustment parts and one or more first support parts may be connected. When one or more first adjustment parts are in the second state, one or more first support parts have a positional relationship bent from the base part in the first direction via one or more first adjustment parts. When one or more first adjustment parts are in the second state, the one or more first support parts may be bent in the 3 direction opposite to the 4 direction.

[0185] (15) In the blank sheet of (14), the blank sheet may further include an inner wall part in a state where the blank sheet is assembled. The inner wall part may be inside the first side wall part and may be outside one or more first adjustment parts. One or more notches into which one or more first support parts are inserted when one or more first adjustment parts are in the second state may be provided in the inner wall part.

[0186] (16) In any one of the blank sheets of (13) to (15), when one or more first adjustment parts are in the second state, when viewed from the 5 direction along the first side wall part, one or more first support parts may be inclined in a direction approaching the base part toward the first side wall part.

[0187] (17) In any one of the blank sheets (1) to (16), the blank sheet may include a fourth adjustment part and a lid part in a state where the blank sheet is assembled. The fourth adjustment part may be formed as a part of the base part. The fourth adjustment part may be deformable into a seventh state in which it does not bend and an eighth state in which it bends in the first direction at a position away from the first side wall part in the 3 first direction. The lid part may have a through hole into which the fourth adjustment part is inserted when the fourth adjustment part is in the eighth state and may be openable and closable. When the fourth adjustment part is in the eighth state, a sixth space smaller than the first space may be defined between the first side wall part and the fourth adjustment part on the first main surface of the base part. When the fourth adjustment part is in the eighth state and the lid part is closed, a part of the fourth adjustment part may be inserted into the through hole.

[0188] (18) The cushioning material of the present disclosure is assembled by bending any one of the blank sheets (1) to (17).

[0189] (19) The storage method of the present disclosure is a method of storing an object in the cushioning material of (18). The storage method includes a step of adjusting the internal space of the cushioning material and a step of storing the object in the adjusted internal space of the cushioning material. In the step of adjusting the internal space of the cushioning material, the internal space of the cushioning material is adjusted by deforming the first adjustment part into the first state or the second state.

Industrial Applicability

[0190] The blank sheet and the cushioning material of the present disclosure are useful in adjusting the space for storing an object.

Explanation of Signs

[0191] 1A, 1B Blank sheet 2A, 2B, 2C, 2D Cushioning material 4A, 4B Base part 5A, 5B, 6A, 6B, 7A, 8A Side wall part 10A Lid part 21A, 21B, 22A, 22B, 23A, 24A Adjustment part Parts 31, 32, 33, 34, 35, 36 Support parts 41A, 41B, 42A, 42B, 43A Inner wall parts 51 to 54 Notch 55 Folded line 61 Break 65 Through hole 71 Insertion piece 75 Main surface 81 Electronic devices 91, 92, 93 Lengths L1, L2, L11 to L13, H1 to H4 Spaces S1 to S6 Directions X1, X2, Y1, Y2, Z1, Z2

Claims

1. A blank sheet that is folded to assemble a cushioning material, In the assembled state of the blank sheets, a base having a first major surface and a second major surface opposite the first major surface, the base having a first end and a second end opposite the first end; a first sidewall portion extending from the first end of the base in a first direction from the second main surface toward the first main surface; a second sidewall portion extending in the first direction from the second end of the base; one or more first adjustment sections formed at a part of the base and deformable between a first state in which the first adjustment section is not bent and a second state in which the first adjustment section is bent in the first direction at a position away from the first side wall section in a third direction from the first end section to the second end section; one or more first support parts that support the one or more first adjustment parts when the one or more first adjustment parts are in the second state; Equipped with When the one or more first adjustment portions are in the first state, a first space is defined between the first side wall portion and the second side wall portion on the first main surface of the base, When the one or more first adjustment portions are in the second state, a second space smaller than the first space is defined between the one or more first adjustment portions and the second side wall portion on the first main surface of the base. Blank sheet.

2. In the assembled state of the blank sheets, one or more second adjustment portions formed at a part of the base portion and deformable between a third state in which the second adjustment portion is not bent and a fourth state in which the second adjustment portion is bent in the first direction at a position away from the second side wall portion in a fourth direction opposite to the third direction; one or more second support parts that support the one or more second adjustment parts when the one or more second adjustment parts are in the fourth state; Further equipped with When the one or more first adjustment units are in the second state and the one or more second adjustment units are in the fourth state, a third space smaller than the second space is defined between the one or more first adjustment units and the one or more second adjustment units on the first main surface of the base. The blank sheet according to claim 1 .

3. The plurality of first adjustment portions are arranged at intervals along the first side wall portion. The blank sheet according to claim 1 .

4. In the second state, the one or more first adjustment portions are bent from the base portion by 80 degrees or more and 100 degrees or less. The blank sheet according to claim 1 .

5. In the second state, the one or more first adjustment portions are bent from the base portion by 80 degrees or more and less than 90 degrees. The blank sheet according to claim 4.

6. In the second state, the one or more first adjustment portions are bent from the base portion by more than 90 degrees to less than 100 degrees. The blank sheet according to claim 4.

7. The base portion further has a third end portion intersecting the first end portion and a fourth end portion opposite the third end portion, In the assembled state of the blank sheets, The blank sheet is a third side wall portion extending in the first direction from the third end of the base; a fourth side wall portion extending in the first direction from the fourth end of the base portion; one or more third adjustment parts formed at a part of the base and deformable between a fifth state in which the third adjustment part is not bent and a sixth state in which the third adjustment part is bent in the first direction at a position away from the third side wall part in a fifth direction from the third end part to the fourth end part of the base; one or more third support parts that support the third adjustment parts when the one or more third adjustment parts are in the sixth state; Equipped with When the one or more third adjustment portions are in the fifth state, a fourth space is defined between the third side wall portion and the fourth side wall portion on the first main surface of the base, When the one or more third adjustment portions are in the sixth state, a fifth space smaller than the fourth space is defined between the fourth side wall portion and the one or more third adjustment portions on the first main surface of the base. The blank sheet according to claim 1 .

8. an inner wall portion that is located inside the first side wall portion and outside the one or more first adjustment portions when the blank sheet is assembled; The inner wall portion has a notch into which the one or more first support portions can be inserted. The blank sheet according to claim 1 .

9. A portion of the one or more first adjustment portions is formed by a portion of the first side wall portion, In the second state, the one or more first adjustment portions are formed by a first portion obtained by bending a part of the base portion in the first direction and a second portion obtained by bending a part of the first side wall portion in the third direction. The blank sheet according to claim 1 .

10. The one or more first support portions are formed from a part of the first side wall portion and are connected to the one or more first adjustment portions. The blank sheet according to claim 9.

11. When the one or more first adjustment units are in the second state, the one or more first adjustment units have an inverted L-shape when viewed from a fifth direction along the first side wall portion. The blank sheet according to claim 10.

12. When the one or more first adjustment units are in the second state, a length of the one or more first adjustment units in the fifth direction is longer than a length of the one or more first adjustment units in the third direction. The blank sheet according to claim 11.

13. the one or more first supports are formed from a portion of the base; When the one or more first adjustment units are in the second state, the one or more first support units have a positional relationship in which they are bent from the base unit in the first direction and are in contact with the first side wall unit. The blank sheet according to claim 1 .

14. the one or more first adjustment units and the one or more first support units are connected to each other, when the one or more first adjustment units are in the second state, the one or more first support units have a positional relationship in which they are bent in the first direction from the base unit via the one or more first adjustment units, When the one or more first adjustment portions are in the second state, the one or more first support portions are bent from the one or more first adjustment portions in a fourth direction opposite to the third direction. The blank sheet according to claim 13.

15. an inner wall portion that is located inside the first side wall portion and outside the one or more first adjustment portions when the blank sheet is assembled; one or more notches into which the one or more first support portions are inserted when the one or more first adjustment portions are in the second state are provided in the inner wall portion; The blank sheet according to claim 14.

16. When the one or more first adjustment units are in the second state, When viewed from a fifth direction along the first side wall portion, the one or more first support portions are inclined toward the first side wall portion in a direction approaching the base portion. The blank sheet according to claim 13.

17. In a state where the blank sheets are assembled, The blank sheet is a fourth adjustment portion formed of a part of the base portion and deformable between a seventh state in which the fourth adjustment portion is not bent and an eighth state in which the fourth adjustment portion is bent in the first direction at a position away from the first side wall portion in the third direction; a cover portion having a through hole into which the fourth adjustment portion is inserted when the fourth adjustment portion is in the eighth state and which is openable and closable; Further equipped with When the fourth adjustment portion is in the eighth state, a sixth space smaller than the first space is defined between the second side wall portion and the fourth adjustment portion on the first main surface of the base, when the fourth adjustment portion is in the eighth state and the cover portion is closed, a portion of the fourth adjustment portion is inserted into the through hole; The blank sheet according to claim 1 .

18. A cushioning material assembled by folding the blank sheet according to any one of claims 1 to 17.

19. A method for storing an object in the cushioning material according to claim 18, comprising the steps of: adjusting the space inside the cushioning material; storing the object in the space within the adjusted cushioning material; having In the step of adjusting the space inside the cushioning material, the space inside the cushioning material is adjusted by deforming the first adjustment portion to the first state or the second state. Storage method:

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