BLANK SHEET, CUSHIONING MATERIAL, AND PACKING METHOD

Description

CROSS REFERENCE TO RELATED APPLICATION

This application claims benefit of priority to Japanese Patent Application 2024-200074, filed Nov. 15, 2024, the entire content of which is incorporated herein by reference.

BACKGROUND

Technical Field

The present disclosure relates to a blank sheet, a cushioning material, and a packing method.

Background Art

For example, JP 2008-30807 A discloses a packing box. The packing box described in JP 2008-30807 A includes a plurality of partition plates combined in a form of parallel crosses inside a box that is an outer box, and a cushioning block that interposes an inner peripheral surface of the box with the partition plates.

SUMMARY

However, the packing box described in JP 2008-30807 A has room for improvement in terms of easily adjusting a space for packing an object.

Therefore, an object of the present disclosure is to provide a blank sheet in which a cushioning material in which a space for packing an object is easily adjustable can be assembled, a cushioning material assembled by the blank sheet, and a packing method for packing an object in the cushioning material.

A blank sheet according to one aspect of the present disclosure is a blank sheet that is capable of being folded to assemble a cushioning material including:

• • in an assembled state where the blank sheet is assembled,
  • a base having a first main surface and a second main surface opposite to the first main surface and having a first end and a second end opposite to the first end;
  • a first side wall extending from the first end in a first direction from the first main surface toward the second main surface;
  • a second side wall extending from the second end in the first direction;
  • at least one first adjuster being a part of the base and being deformable between a first state and a second state, in which the first state is unbent at a first position away from the first side wall in a third direction from the first end toward the second end, and the second state is bent in the first direction at the first position; and
  • at least one first support supporting the at least one first adjuster in the second state, in which
  • in the first state, a first space is defined, on the first main surface of the base, between the first side wall and the second side wall, and
  • in the second state, a second space is defined, on the first main surface of the base, between the at least one first adjuster and the second side wall, and the second space is smaller than the first space.

The cushioning material according to an aspect of the present disclosure is assembled by folding the blank sheet.

A packing method of the present disclosure is a method for packaging an object in the cushioning material, including:

• • adjusting a space inside the cushioning material; and
  • packing the object in the adjusted space inside the cushioning material, in which
  • the adjusting the space includes deforming the at least one first adjuster between the first state and the second state to adjust the space inside the cushioning material.

According to the present disclosure, it is possible to provide a blank sheet in which a cushioning material in which a space for packing an object is easily adjustable can be assembled, a cushioning material assembled by the blank sheet, and a packing method for packing the object in the cushioning material.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a plan view of an example of a blank sheet according to a first embodiment;

FIG. 2 is a perspective view of a cushioning material assembled by folding the blank sheet illustrated in FIG. 1;

FIG. 3 is a perspective view of the cushioning material assembled by folding the blank sheet illustrated in FIG. 1;

FIG. 4 is a perspective view of a cushioning material assembled by folding the blank sheet illustrated in FIG. 1;

FIG. 5 is an enlarged schematic cross-sectional view of the cushioning material of FIG. 3 taken along line A-A;

FIG. 6 is an enlarged schematic cross-sectional view of the cushioning material of FIG. 4 taken along line B-B;

FIG. 7 is an enlarged schematic cross-sectional view of the cushioning material of FIG. 3 taken along line C-C;

FIG. 8 is a plan view of an electronic device packed in the cushioning material illustrated in FIG. 2;

FIG. 9 is a plan view of the electronic device packed in the cushioning material illustrated in FIG. 3;

FIG. 10 is a plan view of the electronic device packed in the cushioning material illustrated in FIG. 4;

FIG. 11 is a plan view of an example of a blank sheet according to a second embodiment;

FIG. 12 is a perspective view of a cushioning material assembled by folding the blank sheet illustrated in FIG. 11;

FIG. 13 is a perspective view of the cushioning material assembled by folding the blank sheet illustrated in FIG. 11;

FIG. 14 is a perspective view of a cushioning material assembled by folding a blank sheet of Modification 1;

FIG. 15 is an enlarged schematic cross-sectional view of a cushioning material assembled by folding a blank sheet of Modification 2;

FIG. 16 is an enlarged schematic cross-sectional view of a cushioning material assembled by folding a blank sheet of Modification 3; and

FIG. 17 is an enlarged plan view of a cushioning material assembled by folding a blank sheet of Modification 3.

DETAILED DESCRIPTION

Background to the Present Disclosure

JP 2008-30807 A discloses a packing box including a box, a plurality of partition plates, and a cushioning block. In the packing box described in JP 2008-30807 A, a user adjusts a space for packing an object by changing arrangement of a plurality of partition plates, a cushioning block, and the like for each object that is an object to be packed having different dimensions.

However, the plurality of partition plates and the cushioning block are separate members. In a case where objects having different dimensions are packed in the box, the user changes the combination of the plurality of partition plates and the position of the cushioning block for each dimension of the object. Therefore, there is a problem that the space for packing the object may not be easily adjusted.

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

Hereinafter, a first embodiment according to the present disclosure will be described with reference to the accompanying drawings. Furthermore, in each drawing, each element is exaggerated in order to facilitate the description.

First Embodiment

In a blank sheet of a first embodiment, a cushioning material can be assembled by being bent. The cushioning material can adjust a space in which an object is packed according to each object having a different size. For example, the object is an electronic device. For example, the object is a computer.

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

Blank Sheet

The blank sheet 1A illustrated in FIG. 1 is bent to assemble a cushioning material 2A illustrated in FIGS. 2 to 4. The blank sheet 1A is folded along a folding line 61 or a cut 65 to assemble the cushioning material 2A. The blank sheet 1A illustrated in FIG. 1 is illustrated such that the inner surface side is visible. The folding line 61 may be a ruled line formed by pushing the surface of the blank sheet 1A into the line, or an intermittent notch may be formed in the ruled line. For example, the blank sheet 1A may be made of cardboard.

Cushioning Material

The cushioning material 2A to be assembled by folding the blank sheet 1A will be described.

FIG. 5 is an enlarged schematic cross-sectional view of the cushioning material 2A illustrated in FIG. 3 taken along line A-A. FIG. 6 is an enlarged schematic cross-sectional view of the cushioning material 2A illustrated in FIG. 4 taken along line B-B. FIG. 7 is an enlarged schematic view of the cushioning material 2A illustrated in FIG. 3 taken along line C-C.

As illustrated in FIG. 3 or FIG. 5, the cushioning material 2A includes a base 4A, a first side wall 5A, a second side wall 6A, a third side wall 7A, a fourth side wall 8A, a first adjuster 21A, and a first support 41A. As illustrated in FIG. 2, FIG. 6, or FIG. 7, the cushioning material 2A includes a lid 10A, a second adjuster 22A, a plurality of third adjusters 23A, a fourth adjuster 24A, a second support 42A, and a plurality of third supports 43A. The cushioning material 2A further includes a first inside wall 51, a second inside wall 52, a third inside wall 53, and a fourth inside wall 54.

As illustrated in FIGS. 2 to 4, the cushioning material 2A has a space in which an object can be packed. The cushioning material 2A has an opening. The opening is defined by the first side wall 5A, the second side wall 6A, the third side wall 7A, and the fourth side wall 8A.

The base 4A has a first main surface 81 and a second main surface opposite to the first main surface 81. The base 4A has a rectangular shape in a view toward a second direction Z2 opposite to the first direction Z1 from the second main surface toward the first main surface 81. The first main surface 81 is disposed an object. The base 4A includes a first end, a second end facing the first end, a third end intersecting the first end, and a fourth end facing the third end.

The first side wall 5A extends in the first direction Z1 from the first end. The first side wall 5A has a rectangular in a view toward the third direction X1 from the first end toward the second end. The first side wall 5A has a length H1 in the first direction Z1. The first side wall 5A has a length L11 in the fifth direction Y1.

The second side wall 6A extends in the first direction Z1 from the second end. The second side wall 6A has a rectangular shape in a view toward the fourth direction X2 opposite to the third direction X1. The second side wall 6A has a length H1 in the first direction Z1. The second side wall 6A has a length L11 in the fifth direction Y1.

The third side wall 7A extends in the first direction Z1 from the third end. The third side wall 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 7A has a length L1 in the third direction X1.

The fourth side wall 8A extends in the first direction Z1 from the fourth end. The fourth side wall 8A has a rectangular shape in a view toward the sixth direction Y2 opposite to the fifth direction Y1. The fourth side wall 8A has a length H1 in the first direction Z1. The fourth side wall 8A has a length L1 in the third direction X1.

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

As illustrated in FIGS. 2 and 3, the first adjuster 21A and the second adjuster 22A adjust the space in which the object may be packed in the third direction X1 and the fourth direction X2 of the space inside the cushioning material 2A.

As illustrated in FIG. 5, the first adjuster 21A is a part of the base 4A and a part of the first side wall 5A. The first adjuster 21A is deformable between a first state and a second state. The first state is a state where the first adjuster 21A is not bent at a first position away from the first side wall 5A in the third direction X1 from the first end toward the second end. The second state is a state where the first adjuster 21A is bent from the base 4A in the first direction Z1 at the first position.

As illustrated in FIG. 5, the first adjuster 21A includes a first portion 31 and a second portion 32. The first portion 31 is a part of the base 4A which is bent in the first direction Z1 in the second state. The second portion 32 is a part of the first side wall 5A which is bent in the third direction X1 in the second state. The first portion 31 and the second portion 32 are connected.

In the second state, the first portion 31 is bent from the base 4A at 90 degrees in the first direction Z1. In the second state, the second portion 32 is bent at 90 degrees in the third direction X1 from the first side wall 5A. In the second state, the first adjuster 21A has an inverted L shape in a view in the fifth direction Y1 along the first side wall 5A.

In the second state, a length H3 of the first adjuster 21A is smaller than the length H1 of the first side wall 5A. The length H3 is a length of the first adjuster 21A in the first direction Z1. In the second state, a length L12 is longer than a length L2. The length L12 is a length of the first adjuster 21A in the fifth direction Y1. The length L2 is a length of the first adjuster 21A in the third direction X1. The length H3 is relatively the same as the length L2.

As illustrated in FIG. 2, the second adjuster 22A is a part of the base 4A and a part of the second side wall 6A. The second adjuster 22A has a configuration similar to that of the first adjuster 21A. The second adjuster 22A is different from the first adjuster 21A in that the position where the second adjuster 22A is disposed is different from that of the first adjuster 21A and that the second adjuster 22A is a part of the base 4A and a part of the second side wall 6A.

As illustrated in FIGS. 2 and 3, the second adjuster 22A is deformable between a third state and a fourth state. The third state is a state where the second adjuster 22A is not bent at a second position away from the second side wall 6A in the fourth direction X2 opposite to the third direction X1. The fourth state is a state where the second adjuster 22A is bent from the base 4A in the first direction Z1 at the second position.

The second adjuster 22A includes a third portion 33 and a fourth portion 34. The third portion 33 is a part of the base 4A which is bent in the first direction Z1 in the fourth state. The fourth portion 34 is a part of the second side wall 6A which is bent in the fourth direction X2 in the fourth state. The third portion 33 and the fourth portion 34 are connected. In the fourth state, the third portion 33 is bent at 90 degrees in the first direction Z1 from the base 4A. In the fourth state, the fourth portion 34 is bent at 90 degrees in the fourth direction X2 from the second side wall 6A. In the fourth state, the second adjuster 22A has an inverted L shape in a view in the fifth direction Y1 along the second side wall 6A.

The second adjuster 22A is disposed at a position facing the first adjuster 21A. In the second state and in the fourth state, the first portion 31 and the third portion 33 have surfaces facing each other.

In the first state and in the third state, a first space S1 is defined on the first main surface 81. As illustrated in FIG. 2, the first space S1 is defined, on the first main surface 81, between the first side wall 5A and the second side wall 6A. The first space S1 has a length from the first inside wall 51 to the second inside wall 52 in the third direction X1.

In the second state and in the fourth state, a second space S2 is defined on the first main surface 81. As illustrated in FIG. 3, the second space S2 is defined, on the first main surface 81, between the first adjuster 21A and the second adjuster 22A. 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 and a length L3. The length L3 is a length of the second adjuster 22A in the fourth direction X2.

In the second state and in the third state, a third space S3 may be defined on the first main surface 81. As illustrated in FIG. 3, the third space S3 may be defined between the first adjuster 21A and the second side wall 6A. The third space S3 is smaller than the first space S1. The third space S3 is smaller than the first space S1 by the length L2. The third space S3 is larger than the second space S2. The third space S3 is larger than the second space S2 by the length L3.

The plurality of third adjusters 23A adjusts the space inside the cushioning material 2A in the fifth direction Y1 and the sixth direction Y2. The third adjuster 23A has a configuration similar to that of the first adjuster 21A. The third adjuster 23A is different from the first adjuster 21A in that the position where the third adjuster 23A is disposed is different from that of the first adjuster 21A and that the third adjuster 23A is a part of the base 4A and a part of the third side wall 7A.

As illustrated in FIG. 4, the plurality of third adjusters 23A is arranged at intervals along the third side wall 7A. The plurality of third adjusters 23A is a part of the base 4A and a part of the third side wall 7A. Each of the plurality of third adjusters 23A is deformable between a fifth state and a sixth state. The fifth state is a state where the plurality of third adjusters 23A is not bent at third positions away from the third side wall 7A in the fifth direction Y1 from the third end toward the fourth end. The sixth state is a state where the plurality of third adjusters 23A is bent from the base 4A in the first direction Z1 at the third positions.

As illustrated in FIG. 6, the third adjuster 23A includes a fifth portion 35 and a sixth portion 36. The fifth portion is a part of the base 4A which is bent in the first direction Z1 in the sixth state. The sixth portion 36 is a part of the third side wall 7A which is bent in the fifth direction Y1 in the sixth state. The fifth portion 35 and the sixth portion 36 are connected. In the sixth state, the fifth portion 35 is bent at 90 degrees in the first direction Z1 from the base 4A, and the sixth portion 36 is bent at 90 degrees in the fifth direction Y1 from the third side wall 7A. In the sixth state, the third adjuster 23A has an inverted L shape in the view in the third direction X1 along the third side wall 7A.

The third adjuster 23A has the same configuration as the first adjuster 21A, but the third adjuster 23A is smaller than the first adjuster 21A. As illustrated in FIG. 6, in the sixth state, a length H4 is shorter than the length H2. The length H4 is a length of the third adjuster 23A in the first direction Z1

In the fifth state, a fourth space S4 is defined, on the first main surface 81, between the third side wall 7A and the fourth side wall 8A. The fourth space S4 has a length from the third inside wall 53 to the fourth inside wall 54 in the fifth direction Y1.

In the sixth state, a fifth space S5 is defined, on the first main surface 81, between the fourth side wall 8A and the third adjuster 23A. The fifth apace S5 is smaller than the fourth space S4. The fifth space S5 is smaller than the fourth space S4 by a length L13. The length L13 is a length of the plurality of third adjusters 23A in the fifth direction Y1.

The fourth adjuster 24A adjusts the space inside the cushioning material 2A in the fifth direction Y1 and the sixth direction Y2. The fourth adjuster 24A is a part of the base 4A. The fourth adjuster 24A is deformable between a seventh state and an eighth state. The seventh state is a state where the fourth adjuster 24A is not bent at a fourth position away from the third side wall 7A in the fifth direction Y1. The eighth state is a state where the fourth adjuster 24A is bent in the first direction Z1 at the fourth position. As illustrated in FIG. 7, in the eighth state, the fourth adjuster 24A is bent from the base 4A at 90 degrees in the first direction Z1. In the eighth state, the fourth adjuster 24A has an inverted L shape as in a view in the fourth direction X2. The fourth adjuster 24A includes an insertion piece 75. In the eighth state, the fourth adjuster 24A is inserted into the through hole 71. In the eighth state and in a state where the lid 10A is closed, a part of the fourth adjuster 24A is inserted into the through hole 71. In the eighth state and in the state where the lid 10A is closed, the insertion piece 75 is inserted into the through hole 71.

In the eighth state, a sixth space S6 is defined, on the first main surface 81, between the fourth side wall 8A and the fourth adjuster 24A. The sixth space 6A is smaller than the fourth space S4

As illustrated in FIG. 5, in the second state, the first support 41A supports the first adjuster 21A. The first support 41A is a part of the first side wall 5A. The first support 41A is connected to the first adjuster 21A. The first support 41A is connected to the second portion 32. In the second state, the first support 41A is bent in the second direction Z2 from the connection portion with the second portion 32. In the second state, the first support 41A is in contact with the base 4A.

In the fourth state, the second support 42A supports the second adjuster 22A. The second support 42A supports the second adjuster 22A with a structure similar to that of the first support 41A illustrated in FIG. 5. As illustrated in FIG. 2, the second support 42A is a part of the second side wall 6A. The second support 42A is connected to the second adjuster 22A. The second support 42A is connected to the fourth portion 34. In the fourth state, the second support 42A is bent in the second direction Z2 from the connection portion with the fourth portion 34. In the fourth state, the second support 42A is in contact with the base 4A.

As illustrated in FIG. 6, in the sixth state, each of the plurality of third supports 43A supports each of the plurality of third adjusters 23A. The plurality of third supports 43A is a part of the third side wall 7A. The plurality of third supports 43A is connected to the third adjuster 23A. Each of the plurality of third supports 43A is connected to the sixth portion 36 of each of the plurality of third adjusters 23A. In the sixth state, the third support 43A is in contact with the base 4A.

As illustrated in FIGS. 2 and 5, the first inside wall 51 is inside the first side wall 5A and outside the first adjuster 21A. The first inside wall 51 has a notch 55 into which the first support 41A may be inserted.

As illustrated in FIG. 2, in a state where the blank sheet 1A is assembled, the second inside wall 52 is on the inner side of the second side wall 6A and on the outer side of the second adjuster 22A. Similarly to the first inside wall 51 having the notch 55, the second inside wall 52 has a notch into which the second support 42A may be inserted.

As illustrated in FIGS. 6 and 7, the third inside wall 53 is inside the third side wall 7A and outside the third adjuster 23A.

The fourth inside wall 54 is located inside the fourth side wall 8A.

A method for packing an object in the cushioning material 2A in the present embodiment will be described.

FIG. 8 is a plan view of a first electronic device 91 packed in the cushioning material 2A illustrated in FIG. 2. FIG. 9 is a plan view of a second electronic device 92 packed in the cushioning material 2A illustrated in FIG. 3. FIG. 10 is a plan view of a third electronic device 93 packed in the cushioning material 2A illustrated in FIG. 4.

In the present embodiment, a method of packing an object in the cushioning material 2A in case the object to be packed in a space inside the cushioning material 2A is an electronic device will be described. The electronic devices in the present embodiment are the first electronic device 91, the second electronic device 92, and the third electronic device 93. As illustrated 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, each of the first electronic device 91, the second electronic device 92, and the third electronic device 93 is a computer. The first electronic device 91, the second electronic device 92, and the third electronic device 93 have different sizes.

The method for packing the object in the cushioning material 2A includes adjusting a space inside the cushioning material 2A and packing the object in the adjusted space inside the cushioning material 2A.

The adjusting the space inside the cushioning material 2A will be described.

The space inside the cushioning material 2A may be adjusted to a space capable of packing the first electronic device 91, the second electronic device 92, or the third electronic device 93. The space inside the cushioning material 2A may be adjusted to a space capable of packing the first electronic device 91, the second electronic device 92, or the third electronic device 93 by each of the first adjuster 21A, the second adjuster 22A, the third adjuster 23A, and the fourth adjuster 24A. The space inside the cushioning material 2A may be adjusted to the dimension of the first electronic device 91, the second electronic device 92, or the third electronic device 93 in the cushioning material 2A.

As illustrated in FIG. 8, the dimension of the first space S1 is substantially the same as the dimensions of the first electronic device 91 in the third direction X1 and the fourth direction X2. The dimension of the fourth space S4 is substantially the same as the dimensions of the first electronic device 91 in the fifth direction Y1 and the sixth direction Y2. “Substantially” includes an error of 5% or more and 10% or less, and is an error in which the space inside the cushioning material 2A becomes larger.

In order to pack the first electronic device 91 in the cushioning material 2A, the space inside the cushioning material 2A may be adjusted to the first space S1 and the fourth space S4. The space inside the cushioning material 2A may be adjusted to the first space S1 in the first state and in the third state. The space inside the cushioning material 2A may be adjusted to the fourth space S4 in the fifth state and in the seventh state. That is, since the first adjuster 21A, the second adjuster 22A, the third adjuster 23A, and the fourth adjuster 24A are not bent in the first direction Z1, the space inside the cushioning material 2A may be adjusted to the first space S1 and the fourth space S4.

As illustrated in FIGS. 8 and 9, the second electronic device 92 is different from the first electronic device 91 in 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 length of the second electronic device 92 in the third direction X1 and the fourth direction X2 and the length of the second electronic device 92 in the fifth direction Y1 and the sixth direction Y2 are smaller than the length of the first electronic device 91 in the third direction X1 and the fourth direction X2 and the length of the first electronic device 91 in the fifth direction Y1 and the sixth direction Y2.

As illustrated in FIG. 9, the dimension of the second space S2 is 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.

In order to pack the second electronic device 92 in the cushioning material 2A, a space inside the cushioning material 2A may be adjusted to the second space S2 and the sixth space S6.

The space inside the cushioning material 2A may be adjusted from the first space S1 to the second space S2 by the first adjuster 21A and the second adjuster 22A. The space inside the cushioning material 2A may be adjusted from the first space S1 to the second space S2 by deforming the first adjuster 21A from the first state to the second state and deforming the second adjuster 22A from the third state to the fourth state. That is, the space inside the cushioning material 2A may be adjusted to the second space S2 by bending the first adjuster 21A and the second adjuster 22A in the first direction Z1.

In the second state and in the fourth state, the first adjuster 21A and the second adjuster 22A are supported by the first support 41A and the second support 42A, respectively. Since the first support 41A and the second support 42A support the first adjuster 21A and the second adjuster 22A, respectively, the space inside the cushioning material 2A adjusted by the first adjuster 21A and the second adjuster 22A, that is, the second space S2 may be maintained.

The space inside the cushioning material 2A is adjusted from the fourth space S4 to the sixth space S6 by the fourth adjuster 24A. The space inside the cushioning material 2A may be adjusted from the fourth space S4 to the sixth space S6 by deforming the fourth adjuster 24A from the seventh state to the eighth state. That is, by bending the fourth adjuster 24A in the first direction Z1, the space inside the cushioning material 2A is adjusted to the sixth space S6.

In the eighth state, the insertion piece 75 is inserted into the through hole 71 by closing the lid 10A. By inserting the insertion piece 75 into the through hole 71, the fourth adjuster 24A may be maintained in a state of being bent in the first direction Z1. That is, by inserting the insertion piece 75 into the through hole 71, the space inside the cushioning material 2A adjusted by the fourth adjuster 24A, that is, the sixth space S6 may be maintained.

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

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

In order to pack the third electronic device 93 in the space inside the cushioning material 2A, the space inside the cushioning material 2A may be adjusted to the first space S1 and the fifth space S5.

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

In addition, when the third adjuster 23A is in the sixth state, the third adjuster 23A is supported by the third support 43A. Since the third support 43A supports the third adjuster 23A, the space inside the cushioning material 2A adjusted by the third adjuster 23A, that is, the fifth space S5 can be maintained.

After the adjusting the space inside the cushioning material 2A is completed, the packing the object in the adjusted space inside the cushioning material 2A is performed. After the step of adjusting the space inside the cushioning material 2A is completed, in the packing the object in the adjusted space inside the cushioning material 2A, the first electronic device 91, the second electronic device 92, or the third electronic device 93 may be packed in the space inside the cushioning material 2A.

An effect of the blank sheet 1A in the present embodiment will be described.

The blank sheet 1A is folded to assemble the cushioning material 2A. The cushioning material 2A assembled by the blank sheet 1A includes the base 4A, the first side wall 5A, the second side wall 6A, the first adjuster 21A, and the first support 41A. The base 4A has the first main surface 81 and the second main surface opposite to the first main surface 81. The base 4A has the first end and the second end facing the first end. The first side wall 5A extends from the first end in the first direction Z1 from the second main surface toward the first main surface 81. The second side wall 6A extends in the first direction Z1 from the second end of the base 4A. The first adjuster 21A is a part of the base 4A. The first adjuster 21A is deformable between the first state and the second state. The first state is the state where the first adjuster 21A is not bent at the first position away from the first side wall 5A in the third direction X1 from the first end toward the second end. The second state is the state where the first adjuster 21A is bent in the first direction Z1 at the first position. The first support 41A supports the first adjuster 21A in the second state. In the first state, the first space S1 is defined between, on the first main surface 81, the first side wall 5A and the second side wall 6A. In the second state, the third space S3 is defined, on the first main surface 81, between the first adjuster 21A and the second side wall 6A. The third space is smaller than the first space S1.

With such a configuration, from the blank sheet 1A, the cushioning material 2A capable of easily adjusting the space for packing the object can be assembled. In the cushioning material 2A, the space inside the cushioning material 2A can be adjusted from the first space S1 to the third space S3 by bending the first adjuster 21A. Therefore, in the cushioning material 2A, the first adjuster 21A can easily adjust the space inside the cushioning material 2A that packs objects of different sizes.

In addition, in the second state, the first adjuster 21A is supported by the first support 41A, so that it is possible to maintain the bent state in the first direction Z1. Since the first adjuster 21A is maintained in the state of being bent in the first direction Z1, the third space S3 adjusted by the first adjuster 21A can be maintained. Therefore, the object packed in the third space S3 can be packed in the state of having the cushioning property by the cushioning material 2A.

The cushioning material 2A further includes the second adjuster 22A and the second support 42A. The second adjuster 22A is a part of the base 4A. The second adjuster 22A is deformable between the third state and the fourth state. The third state is the state where second adjuster 22A is not bent in the first direction Z1 at the second position away from the second side wall 6A in the fourth direction X2 opposite to the third direction X1. The fourth state is the state where the second adjuster 22A is bent in the first direction Z1 at the second position. The second support 42A supports the second adjuster 22A in the fourth state. In the second state and in the third state, the second space S2 is defined, on the first main surface 81, between the first adjuster 21A and the second adjuster 22A. The second space is smaller than the third space S3.

With such a configuration, from the blank sheet 1A, the cushioning material 2A capable of easily adjusting the space for packing the object can be assembled. In the cushioning material 2A, the space inside the cushioning material 2A can be adjusted from the first space S1 to the second space S2 by bending the first adjuster 21A and the second adjuster 22A. Therefore, in the cushioning material 2A, the first adjuster 21A and the second adjuster 22A can easily adjust the space inside the cushioning material 2A that packs objects of different sizes.

In addition, in the fourth state, the second adjuster 22A is supported by the second support 42A, so that it is possible to maintain the bent state in the first direction Z1. The space adjusted by the second adjuster 22A can be maintained by maintaining the second adjuster 22A in the bent state in the first direction Z1.

In case the difference between the sizes of the objects having different sizes is large, the sizes of the first adjuster 21A and the second adjuster 22A can be reduced more in a case of adjusting the space inside the cushioning material 2A by the first adjuster 21A and the second adjuster 22A. Since the sizes of the first adjuster 21A and the second adjuster 22A can be reduced, the first adjuster 21A and the second adjuster 22A can be easily bent in the first direction Z1.

In the second state, the first adjuster 21A is bent at 90 degrees from the base 4A.

With such a configuration, the object is easily packed in the space inside the cushioning material 2A adjusted by the first adjuster 21A, and the first adjuster 21A is easily maintained in the second state.

The base 4A further includes the third end intersecting the first end and the fourth end facing the third end. The cushioning material 2A assembled by the blank sheet 1A further includes the third side wall 7A, the fourth side wall 8A, the plurality of third adjuster 23A, and the third support 43A. The third side wall 7A extends in the first direction Z1 from the third end. The fourth side wall 8A extends in the first direction Z1 from the fourth end. The plurality of third adjuster 23A is a part of the base 4A. The plurality of third adjuster 23A is deformable between the fifth state and the sixth state. The fifth state is the state where the plurality of third adjuster 23A is not bent in the first direction Z1 at the third positions away from the third side wall 7A in the fifth direction Y1 from the third end toward the fourth end. The sixth state is the state where the plurality of third adjuster 23A is bent in the first direction Z1 at the third positions. In the fifth state, the fourth space S4 is defined, on the first main surface 81, between the third side wall 7A and the fourth side wall 8A. In the sixth state, the fifth space S5 is defined, on the first main surface 81, between the fourth side wall 8A and the plurality of third adjusters 23A. The fifth space is smaller than the fourth space S4.

With such a configuration, from the blank sheet 1A, the cushioning material 2A capable of easily adjusting the space for packing the object can be assembled. In the cushioning material 2A, the space inside the cushioning material 2A can be adjusted from the fourth space S4 to the fifth space S5 by bending the third adjuster 23A. Therefore, in the cushioning material 2A, the third adjuster 23A can easily adjust the space inside the cushioning material 2A that packs objects of different sizes.

In addition, in the sixth state, the third adjuster 23A is supported by the third support 43A, so that it is possible to maintain the bent state in the first direction Z1. The space adjusted by the third adjuster 23A can be maintained by maintaining the third adjuster 23A in the bent state in the first direction Z1.

The cushioning material 2A further includes the first inside wall 51 that is inside the first side wall 5A and outside the first adjuster 21A. The first inside wall 51 has a notch 55 into which the first support 41A can be inserted.

With such a configuration, an impact from the outside of the cushioning material 2A can be alleviated to the inside. That is, the first inside wall 51 can mitigate the impact transmitted to the object when the cushioning material 2A receives the impact from the outside of the cushioning material 2A in a state where the object is disposed on the first main surface 81.

In addition, by inserting the first support 41A into the notch 55, the first support 41A more easily supports the first adjuster 21A in the second state.

A part of the first adjuster 21A is the part of the first side wall 5A. The first adjuster 21A includes the first portion 31 and the second portion state 32. The first portion 31 is a part of the base 4A which is bent in the first direction Z1 in the second state. The second portion 32 is a part of the first side wall 5A which is bent in the third direction X1 in the second state.

With such a configuration, from the blank sheet 1A, the cushioning material 2A capable of easily adjusting the space for packing the object can be assembled. Since the first adjuster 21A has the first portion 31 and the second portion 32, the first adjuster 21A is more easily bent. In addition, since the first adjuster 21A includes the first portion 31 and the second portion 32, it is easy to maintain a state of being bent in the first direction Z1. That is, the space inside the adjusted cushioning material 2A can be maintained by the first adjuster 21A.

The first support 41A is a part of the first side wall 5A. The first support 41A is connected to the first adjusters 21A.

With such a configuration, the first support 41A can more stably support the first adjuster 21A in the second state. Since the first adjuster 21A is stably supported, the first adjuster 21A can maintain the space inside the adjusted cushioning material 2A.

In the second state, the first adjuster 21A has an inverted L shape in the view in the fifth direction Y1 along the first side wall 5A.

With such a configuration, the object can be more stably packed in the cushioning material 2A.

In the second state, the length of the first adjuster 21A in the fifth direction Y1 is longer than the length of the first adjuster 21A in the third direction X1.

Since the length of the first adjuster 21A in the fifth direction Y1 is longer than the length of the first adjuster 21A in the third direction X1, the first adjuster 21A is less likely to be deformed in the fourth direction X2 even in case receiving the force in the fourth direction X2 by the object packed in the cushioning material 2A. Therefore, in the second state, the first adjuster 21A can maintain the second state more stably.

The cushioning material 2A further includes the fourth adjuster 24A and the lid 10A. The fourth adjuster 24A is a part of the base 4A. The fourth adjuster 24A is deformable between the seventh state and the eighth state. The seventh state is the state where the fourth adjuster 24A is not bent in the first direction Z1 at the fourth position away from the third side wall 7A in the fifth direction Y1. The eighth state is the state where the fourth adjuster 24A is bent in the first direction Z1 at the fourth position. The lid 10A is openable and closable. The lid 10A has the through hole 71. In the eighth state, the fourth adjuster 24A is inserted into the through hole 71. In the eighth state, the sixth space S6 is defined, on the first main surface 81, between the fourth side wall 8A and the fourth adjuster 24A. The sixth space S6 is smaller than the first space S1. In the eighth state and in the state where the lid 10A is closed, a part of the fourth adjuster 24A is inserted into the through hole 71.

With such a configuration, the blank sheet 1A can assemble the cushioning material 2A capable of easily adjusting the space for packing the object. In the cushioning material 2A, the space inside the cushioning material 2A can be adjusted from the fourth space S4 to the sixth space S6 by bending the fourth adjuster 24A. Therefore, in the cushioning material 2A, the fourth adjuster 24A can easily adjust the space inside the cushioning material 2A that packs objects of different sizes.

In the eighth state and in the state where the lid 10A is closed, a part of the fourth adjuster 24A is inserted into the through hole 71, whereby the fourth adjuster 24A is maintained in a state of being bent in the first direction Z1. Therefore, the object can be packed in the cushioning material 2A while maintaining the sixth space S6.

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

With such a configuration, the cushioning material 2A can easily adjust the space for packing the object. In addition, the space inside the cushioning material 2A can be adjusted only with the blank sheet 1A. Further, the cushioning material 2A can be bent to adjust the space inside the cushioning material 2A. Therefore, the use of other members for adjusting the space inside the cushioning material 2A can be suppressed.

The packing method is a method for packing an object in the cushioning material 2A described above. The packing method includes the adjusting a space inside the cushioning material 2A, and the packing the object in the adjusted space inside the cushioning material 2A. In the adjusting the space inside the cushioning material 2A, the space inside the cushioning material 2A is adjusted by deforming the first adjuster 21A into the first state or the second state.

An impact received by the object from the outside of the cushioning material 2A can be alleviated by packing the object in the cushioning material 2A. For example, an impact received by an electronic device from the outside of the cushioning material 2A can be alleviated by packing the electronic device in the cushioning material 2A.

In addition, according to such a packing method, a plurality of objects having different sizes can be packed in the space inside the cushioning material 2A adjusted in accordance with each object. Each of the plurality of objects having different sizes is packed in the space inside the adjusted cushioning material 2A, so that impact received by each of the plurality of objects from the outside of the cushioning material 2A can be cushioned.

For example, the object is an electronic device, and the plurality of electronic devices includes 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 have different sizes. The space inside the cushioning material 2A can be adjusted to pack the first electronic device 91, the second electronic device 92, or the third electronic device 93. An impact received by the second electronic device 92, or the third electronic device 93, an impact applied from the outside of the cushioning material 2A can be alleviated by packing the first electronic device 91, the second electronic device 92, or the third electronic device 93 in a space inside the cushioning material 2A adjusted for each of the first electronic device 91.

In the present embodiment, it has been described that the object is an electronic device, but the object may not be an electronic device.

Although it has been described that the blank sheet 1A is made of cardboard, the present invention is not limited thereto. For example, the blank sheet 1A may be made of thick paper, a film, or the like.

Although it has been described that the blank sheet 1A includes the third side wall 7A, the fourth side wall 8A, the lid 10A, the second adjuster 22A, the third adjuster 23A, the fourth adjuster 24A, the second support 42A, and the third support 43A, the present invention is not limited thereto. For example, the blank sheet 1A may not include the third side wall 7A, the fourth side wall 8A, the lid 10A, the second adjuster 22A, the third adjuster 23A, the fourth adjuster 24A, the second support 42A, and the third support 43A.

Although it has been described that the base 4A has a rectangular shape in the view from the second direction Z2, the base 4A may not have a rectangular shape in the view from the second direction Z2.

Although it has been described that the first side wall 5A has a rectangular shape in the view from the third direction X1, the first side wall 5A may not have a rectangular shape in the view from the third direction X1.

Although it has been described that the second side wall 6A has a rectangular shape in the view toward the fourth direction X2, the second side wall 6A may not have a rectangular shape in the view toward the fourth direction X2.

Although it has been described that the lid 10A is connected to the third side wall 7A, the present invention is not limited thereto. For example, the lid 10A may be connected to the fourth side wall 8A.

Although it has been described that the first adjuster 21A, the second adjuster 22A, the third adjuster 23A, and the fourth adjuster 24A are bent at 90 degrees in the first direction Z1 from the base 4A, the present invention is not limited thereto. For example, the first adjuster 21A, the second adjuster 22A, the third adjuster 23A, and the fourth adjuster 24A may be bent at 80 degrees or more and 100 degrees or less from the base 4A.

Although it has been described that the second portion 32 is bent at 90 degrees in the third direction X1 from the first side wall 5A, the present invention is not limited thereto. For example, the second portion 32 may be bent at 80 degrees or more and 100 degrees or less in the third direction X1 from the first side wall 5A.

Although it has been described that the third portion 33 is bent at 90 degrees in the fourth direction X2 from the second side wall 6A, the present invention is not limited thereto. For example, the third portion 33 may be bent at 80 degrees or more and 100 degrees or less in the fourth direction X2 from the second side wall 6A.

Although it has been described that the fifth portion 35 is bent at 90 degrees in the fifth direction Y1 from the third side wall 7A, the present invention is not limited thereto. For example, the fifth portion 35 may be bent at 80 degrees or more and 100 degrees or less in the fifth direction Y1 from the third side wall 7A.

Although it has been described that the fourth adjuster 24A is deformable between the seventh state and the eighth state, the seventh state is the state where the fourth adjuster 24A is not bent in the first direction Z1 at first position, and the eighth state is the state where the fourth adjuster 24A is bent in the first direction Z1 at the first position, the present invention is not limited thereto. For example, the fourth adjuster 24A may be deformable between a ninth state and tenth state. The ninth is a state where the fourth adjuster 24A is not bent in the first direction Z1 at a fifth position away from the first side wall 5A in the third direction X1. The tenth state is a state where the fourth adjuster 24A is bent in the first direction Z1 at the fifth position.

Although it has been described that the fourth adjuster 24A adjusts the space inside the cushioning material 2A in the fifth direction Y1 and the sixth direction Y2, the present invention is not limited thereto. For example, the fourth adjuster 24A may adjust the space inside the cushioning material 2A in the third direction X1 and the fourth direction X2.

Although an example in which the blank sheet 1A includes the first adjuster 21A and the second adjuster 22A is illustrated in FIG. 1, the blank sheet 1A may include a plurality of first adjusters 21A and a plurality of second adjusters 22A.

Although the example in which the blank sheet 1A includes the plurality of third adjusters 23A has been described, the blank sheet 1A may include one third adjuster 23A.

Although an example in which the blank sheet 1A includes the first support 41A and the second support 42A is illustrated in FIG. 1, the blank sheet 1A may include a plurality of first supports 41A and a plurality of second supports 42A.

Although it has been described that the blank sheet 1A includes the fourth adjuster 24A and the lid 10A includes the through hole 71, the present invention is not limited thereto. For example, the blank sheet 1A may include a plurality of fourth adjusters 24A, and the lid 10A may include a plurality of through holes 71.

Although it has been described that each of the first adjuster 21A, the second adjuster 22A, and the third adjuster 23A can be supported by each of the first support 41A, the second support 42A, and the third support 43A, the present invention is not limited thereto. For example, each of the first adjuster 21A, the second adjuster 22A, and the third adjuster 23A may be supported by each of a plurality of first supports 41A, a plurality of second supports 42A, and a plurality of third supports 43A.

Second Embodiment

FIG. 11 is a plan view of an example of a blank sheet 1B according to a second embodiment. FIGS. 12 and 13 are perspective views of the cushioning material 2B assembled by folding the blank sheet 1B illustrated in FIG. 11.

In the second embodiment, a configuration different from that of the first embodiment will be described.

The second embodiment is different from the first embodiment in that the first adjuster 21B is not formed from a part of the first side wall 5B and the second adjuster 22B is not formed from a part of the second side wall 6B. The second embodiment is different from the first embodiment in that one first adjuster 21B is supported by a plurality of first supports 41B, and is also different from the first embodiment in that the first support 41B is formed of a part of the base 4B.

Blank Sheet

The blank sheet 1B illustrated in FIG. 11 is bent to assemble the cushioning material 2B illustrated in FIGS. 12 and 13. The blank sheet 1B is folded along a folding line 61 or a cut 65 to assemble the cushioning material 2B.

Cushioning Material

As illustrated in FIGS. 12 and 13, the cushioning material 2B includes a first adjuster 21B, a second adjuster 22B, a plurality of first supports 41B, and a plurality of second supports 42B.

Each of the first adjuster 21B and the second adjuster 22B is a part of the base 4B. As illustrated in FIGS. 12 and 13, the first adjuster 21B and the second adjuster 22B are bent in the first direction Z1 from the base 4B.

The plurality of first supports 41B supports the first adjuster 21B. The plurality of first supports 41B is a part of the base 4B. The plurality of first supports 41B is connected to the first adjuster 21B. Each of the plurality of first supports 41B is connected to each of both ends of the first adjuster 21B. In the second state, the plurality of first supports 41B has a positional relationship bent from the base 4B in the first direction Z1, and come into contact with the first side wall 5B. In the second state, the plurality of first supports 41B has a positional relationship bent from the base 4B in the first direction Z1 via the first adjuster 21B, and come into contact with the first side wall 5B. In the second state, the plurality of first supports 41B is inserted into the notch 55 provided in the first inside wall 51. In the second state, the plurality of first supports 41B is bent from the first adjuster 21B in the fourth direction X2 opposite to the third direction X1. In the second state, the plurality of first supports 41B is bent at 90 degrees in the fourth direction X2 from the first adjuster 21B.

In the second state, the plurality of first supports 41B is inclined toward the first side wall 5B in a direction approaching the base 4B in the view toward the fifth direction Y1 along the first side wall 5B.

The plurality of second supports 42B supports one second adjuster 22B. The plurality of second supports 42B is a part of the base 4B. The plurality of second supports 42B is connected to the second adjuster 22B. Each of the plurality of second supports 42B is connected to each of both ends of the second adjuster 22B. In the fourth state, the plurality of second supports 42B has a positional relationship bent from the base 4B in the first direction Z1, and come into contact with the second side wall 6B. In the fourth state, the plurality of second supports 42B has a positional relationship bent from the base 4B in the first direction Z1 via the second adjuster 22B, and come into contact with the second side wall 6B. In the fourth state, the plurality of second supports 42B is inserted into the notch 55 provided in the second inside wall 52. In the fourth state, the plurality of second supports 42B is bent in the third direction X1. In the fourth state, the plurality of second supports 42B is bent at 90 degrees in the third direction X1 from the second adjuster 22B.

In the fourth state, the plurality of second supports 42B is inclined toward the second side wall 6B in a direction approaching the base 4B in the view toward the fifth direction Y1.

Note that the first inside wall 51 and the second inside wall 52 are illustrated in FIGS. 12 and 13 assuming that one notch 55 is provided, but the present invention is not limited thereto. For example, the first inside wall 51 and the second inside wall 52 may be provided with a plurality of notches 55. In each of the plurality of notches 55, each of the plurality of first supports 41B or each of the plurality of second supports 42B may be insertable.

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

The blank sheet 1B is bent to assemble the cushioning material 2B. The cushioning material 2B assembled by the blank sheet 1B includes the base 4B, the first side wall 5B, the second side wall 6B, the first adjuster 21B, and the plurality of first supports 41B. The base 4B has a first main surface 81 and a second main surface opposite to the first main surface 81. The base 4B has a first end and a second end facing the first end. The first side wall 5B extends from the first end of the base 4B in the first direction Z1 from the second main surface toward the first main surface 81. The second side wall 6B extends in the first direction Z1 from the second end of the base 4B. The first adjuster 21B is formed of the base 4B. The first adjuster 21B can be deformed between the first state and the second state. The first state is the state where the first adjuster 21B is not bent in the first direction Z1 at the first position away from the first side wall 5B in the third direction X1 from the first end toward the second end. The second state is the state where the first adjuster 21B is bent in the first direction Z1 at the first position. The plurality of first supports 41B supports the first adjuster 21B in the second state. The plurality of first supports 41B is a part of the base 4B. In the second state, the plurality of first supports 41B has a positional relationship bent from the base 4B in the first direction Z1, and come into contact with the first side wall 5B. In the first state, a first space S1 is defined, on the first main surface 81, between the first side wall 5B and the second side wall 6B. In the second state, the third space S3 is defined, on the first main surface 81, between the first adjuster 21B and the second side wall 6B. The third space S3 is smaller than the first space S1.

With such a configuration, the blank sheet 1B can assemble the cushioning material 2B capable of easily adjusting the space for packing the object. The cushioning material 2B can adjust the space inside the cushioning material 2B from the first space S1 to the third space S3 by bending the first adjuster 21B. Therefore, in the cushioning material 2B, the first adjuster 21B can easily adjust the space inside the cushioning material 2B that packs the objects of different sizes.

In addition, when the first adjuster 21B is in the second state, the plurality of first supports 41B come into contact with the first side wall 5B, whereby the first adjuster 21B can be maintained in the second state.

The first adjuster 21B and the plurality of first supports 41B are connected. In the second state, the plurality of first supports 41B has a positional relationship bent from the base 4B in the first direction Z1 via the first adjuster 21B. In the second state, the plurality of first supports 41B is bent in the fourth direction X2 opposite to the third direction X1 from the first adjuster 21B.

With such a configuration, the blank sheet 1B can assemble the cushioning material 2B capable of easily adjusting the space for packing the object. Since the first adjuster 21B and the plurality of first supports 41B are connected, the first adjuster 21B and the first support 41B can be simultaneously bent. Since the first adjuster 21B and the plurality of first supports 41B are connected, the first support 41B can further support the first adjuster 21B.

The cushioning material 2B further includes the first inside wall 51. The first inside wall 51 is inside the first side wall 5B and outside the first adjuster 21B. The first inside wall 51 is provided with the notch 55. In the second state, the plurality of first supports 41B is inserted into the notch 55.

In the second state, the plurality of first supports 41B is inserted into the notch 55, so that the first support 41B can maintain the first adjuster 21B in a state of being bent in the first direction Z1.

In the second state, the plurality of first supports 41B is inclined toward the first side wall 5B in a direction approaching the base 4B in the view from the fifth direction Y1 along the first side wall 5B.

With such a configuration, in the second state, the plurality of first supports 41B can be easily inserted into the notch 55, so that the plurality of first supports 41B can be maintained in a state where the first adjuster 21B is bent in the first direction Z1.

Although the example in which the cushioning material 2B includes one first adjuster 21B and one second adjuster 22B has been described, the cushioning material 2B may include a plurality of first adjusters 21B and a plurality of second adjusters 22B.

Although the example in which the cushioning material 2B includes the plurality of first supports 41B for the first adjuster 21B has been described, the cushioning material 2B may include a first support 41B for the first adjuster 21B.

Although it has been described that the first adjuster 21B and the plurality of first supports 41B are connected, the first adjuster 21B and the plurality of first supports 41B may not be connected. For example, the first support 41B may be connected to the base 4B and bendable from the base 4B in the first direction Z1. For example, the first support 41B may support the first adjuster 21B by coming into contact with the first adjuster 21B. The first adjuster 21B may be provided with a through hole into. A part of the first support 41B may be inserted into the through hole. In the second state, the first adjuster is supported by inserted into the through hole.

Although the example in which one notch 55 is provided in the first inside wall 51 has been described, the present invention is not limited thereto. For example, a plurality of notches 55 may be provided in the first inside wall 51. The number of the plurality of notches 55 may be the same as the number of the first supports 41B.

In the second state, the plurality of first supports 41B may be bent in the first direction Z1 from the base 4B. For example, the first support 41B may be bent in the first direction Z1 at 80 degrees or more and 110 degrees or less from the base 4B.

It has been described that the plurality of first supports 41B is bent from the first adjuster 21B at 90 degrees in the fourth direction X2 in the second state, but the present invention is not limited thereto. For example, in the second state, the plurality of first supports 41B is bent at 80 degrees or more and 100 degrees or less in the fourth direction X2 from the first adjuster 21B.

In the second state, the plurality of second supports 42B may be bent in the first direction Z1 from the base 4B. For example, the second support 42B may be bent in the first direction Z1 at 90 degrees or more and 110 degrees or less from the base 4B.

It has been described that when the plurality of second supports 42B is bent at 90 degrees in the fourth direction X2 from the second adjuster 22B in the fourth state, but the present invention is not limited thereto. For example, in the fourth state, the plurality of second supports 42B is bent at 80 degrees or more and 100 degrees or less in the fourth direction X2 from the second adjuster 22B.

Modification 1

FIG. 14 is a perspective view of a cushioning material 2C assembled by folding a blank sheet of Modification 1.

The cushioning material 2C assembled by folding the blank sheet of Modification 1 is different from the cushioning material 2A assembled by folding the blank sheet 1A of Embodiment 1 in the number of the first adjuster 21A, the second adjuster 22A, and the third adjuster 23A.

The cushioning material 2C includes a plurality of first adjusters 21A, a plurality of second adjusters 22A, and one third adjuster 23A.

The plurality of first adjusters 21A is arranged at intervals along the first side wall 5A. The plurality of second adjusters 22A is arranged at intervals along the second side wall 6A.

The plurality of first adjusters 21A is arranged at intervals along the first side wall 5A.

By arranging the plurality of first adjusters 21A at intervals along the first side wall 5A, it is possible to further mitigate the impact from the outside of the cushioning material 2C.

Modification 2

FIG. 15 is an enlarged schematic cross-sectional view of a cushioning material 2D assembled by folding a blank sheet of Modification 2.

As illustrated in FIG. 15, the cushioning material 2D is different from the cushioning material 2A of the first embodiment in that the first adjuster 21A is bent from the base 4A at an angle θ1 in the second state. The angle θ1 is an angle between the first main surface 81 of the base 4A and the first adjuster 21A, and is 80 degrees or more and less than 90 degrees.

In the second state, the first adjuster 21A is bent at the angle θ1, that is, 80 degrees or more and less than 90 degrees, so that the space for packing the object adjusted by the first adjuster 21A can be more easily maintained.

Modification 3

FIG. 16 is an enlarged schematic cross-sectional view of a cushioning material 2E assembled by folding a blank sheet of Modification 3. FIG. 17 is an enlarged plan view of a cushioning material 2E assembled by folding a blank sheet of Modification 3.

As illustrated in FIGS. 16 and 17, the cushioning material 2D is different from the cushioning material 2B of the second embodiment in that the first adjuster 21B is bent at an angle θ2 from the base 4B in the second state and that the plurality of first supports 41B is bent at an angle θ3 from the first adjuster 21B.

As illustrated in FIG. 16, in the second state, the first adjuster 21B is bent at the angle θ2 from the base 4B. The angle θ2 is an angle between the first main surface 81 and the first adjuster 21B, and is larger than 90 degrees. The angle θ2 is equal to or smaller than 100 degrees.

In the second state of the first adjuster 21B, the first adjuster 21B is bent at the angle θ2, that is, more than 90 degrees and 100 degrees or less, so that the first adjuster 21B further comes into contact with the first side wall 5B. Since the first adjuster 21B comes into contact with the first side wall 5B, it is easy to maintain the space for packing the object adjusted by the first adjuster 21B.

As illustrated in FIG. 17, in the second state, each of the plurality of first supports 41B is bent at the angle θ3 from the first adjuster 21B. The angle θ3 is an angle between a surface of the first adjuster 21B facing the first side wall 5B and each of the plurality of first supports 41B in the second state. The angle θ3 is larger than 90 degrees and equal to or smaller than 100 degrees.

In the second state, since the first support 41B is bent from the first adjuster 21B at the angle θ3, that is, more than 90 degrees and 100 degrees or less, the first support 41B comes into contact with the inner wall defining the notch 55. Since the first support 41B is in contact with the inner wall defining the notch 55, the space for packing the object adjusted by the first adjuster 21A can be easily maintained.

Outline of Embodiments

• • (1) A blank sheet of present disclosure is a blank sheet that is capable of being folded to assemble a cushioning material. In an assembled state where the blank sheet is assembled, the blank sheet comprises a first side wall, a second side wall, at least one first adjuster and at least one first support. The base has a first main surface and a second main surface opposite to the first main surface. The base has a first end and a second end opposite to the first end. The first side wall extends from the first end in a first direction from the first main surface toward the second main surface. The second side wall extends from the second end in the first direction. The at least one first adjuster is a part of the base. The at least one first adjuster is deformable between a first state and a second state. The first state is unbent at a first position away from the first side wall in a third direction from the first end toward the second end. The second state is bent in the first direction at the first position. The at least one first support supports the at least one first adjuster in the second state. In the first state, a first space is defined, on the first main surface, between the first side wall and the second side wall. In the second state, a second space is defined, on the first main surface, between the at least one first adjuster and the second side wall. The second space is smaller than the first space.
  • (2) The blank sheet according to (1), in the assembled state, may further comprise at least one second adjuster and at least one second support. The at least one second adjuster may be a part of the base. The at least one second adjuster may be deformable between a third state and a fourth state. The third state may be unbent at a second position away from the second side wall in a fourth direction opposite to the third direction. The fourth state may be bent in the first direction at the second position. The at least one second support may support the at least one second adjuster in the fourth state. In the second state and in the fourth state, a third space may be defined, on the first main surface, between the at least one first adjuster and the at least one second adjuster. The third space may be smaller than the second space.
  • (3) In the blank sheet according to (1) or (2), the at least one first adjuster may include a plurality of first adjusters disposed along the first side wall at intervals.
  • (4) In the blank sheet according to any one of (1) to (3), in the second state, the at least one first adjuster may be bent from the base at an angle in a range of 80 to 100 degrees, inclusive of 80 and 100.
  • (5) In the blank sheet according to (4), in the second state, the at least one first adjuster may be bent from the base at the angle in a range of 80 to 90 degrees, inclusive of 80 and exclusive 90.
  • (6) In the blank sheet according to (4), in the second state, the at least one first adjuster may be bent from the base at the angle in a range of 90 to 100 degrees, exclusive of 90 and inclusive of 100.
  • (7) In the blank sheet according to any one of (1) to (6), the base may further have a third end intersecting with the first end and a fourth end opposite to the third end. In the assembled state, the blank sheet may comprise a third side wall, a fourth side wall, at least one third adjuster and at least one third support. The third side wall may extend from the third end in the first direction. The fourth side wall may extend from the fourth end in the first direction. The at least one third adjuster may be a part of the base. The at least one third adjuster may be deformable between a fifth state and a sixth state. The fifth state may be unbent at a third position away from the third side wall in a fifth direction from the third end toward the fourth end. The sixth state may be bent in the first direction at the third position. The at least one third support may support the at least one third adjuster in the sixth state. In the fifth state, a fourth space may be defined, on the first main surface, between the third side wall and the fourth side wall. In the sixth state, a fifth space may be defined, on the first main surface, between the fourth side wall and the at least one third adjuster. The fifth space may be smaller than the fourth space.
  • (8) The blank sheet according to any one of (1) to (7), in the assembled state, may comprise an inside wall. The inside wall may be disposed inward of the first side wall and outward of the at least one first adjuster. The inside wall may be provided with a notch. The at least one first support may be insertable into the notch.
  • (9) In the blank sheet according to any one of (1) to (8), the at least one first adjuster may be a part of the first side wall. In the second state, the at least one first adjuster may include a first part being the part of the base bent in the first direction and a second part being the part of the first side wall bent in the third direction.
  • (10) In the blank sheet according to (9), the at least one first support may be a part of the first side wall. The at least one first support may be connected with the at least one first adjuster.
  • (11) In the blank sheet according to (10), in the second state, the at least one first adjuster may have an inverted L-shape in a view in a fifth direction along the first side wall.
  • (12) In the blank sheet according to (11), in the second state, the at least one adjuster may have a length in the fifth direction being longer than a length in the third direction.
  • (13) In the blank sheet according to any one of (1) to (8), the at least one support may be the part of the base. In the second state, the at least one first support may have a positional relationship bent from the base in the first direction and be contacted with the first side wall.
  • (14) In the blank sheet according to (13), the at least one first adjuster and the at least one first support may be connected. In the second state, the at least one first support may have the positional relationship bent from the base in the first direction via the at least one first adjuster. In the second state, the at least one first support may be bent from the at least one first adjuster in a fourth direction opposite the third direction.
  • (15) The blank sheet according to (14) may further comprise, in the assembled state, an inside wall. The inside wall may be disposed inward of the first side wall and outward of the at least one first adjuster. The inside wall may be provided with the notch. In the second state, the at least one first support may be inserted into the notch.
  • (16) The blank sheet according to any one of (13) to (15), in the second state, the at least one first support may be inclined toward the first side wall in a direction approaching the base, in a view in a fifth direction along the first side wall.
  • (17) The blank sheet according any one of (1) to (16) may further comprise, in the assembled state, a fourth adjuster and a lid. The fourth adjuster may be a part of the base. The fourth adjuster may be deformable between a seventh state and an eighth state. The seventh state may be unbent at a fourth position away from the first side wall in a third direction from the first end toward the second end. The eighth state may be bent in the first direction at the fourth position. The lid may be openable and closable. The lid may have a though-hole into which the fourth adjuster is insertable in the eighth state. In the eighth state, a sixth space may be defined between the second side wall and the fourth adjuster on the first main surface. In the eighth state and in a state where the lid is closed, a part of the fourth adjuster may be inserted into the though-hole.
  • (18) The cushioning material of present disclosure is assembled by folding the blank sheet according to any one of (1) to (17).
  • (19) The method of preset disclosure is a method for packaging an object in the cushioning material according to (18). The method comprises adjusting a space inside the cushioning material and packing the object in the adjusted space. The adjusting the space includes deforming the at least one first adjuster between the first state and the second state to adjust the space.