JP2015085966A - Buffer material for packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buffer material for packaging which is freely variable in one direction.SOLUTION: A remaining space at a cassette storage part becomes very small when three tape cassettes are stored in the cassette storage part. Therefore, a buffer material 1 for packaging having a large amount of deformation and being collapsed is inserted. In this case, a third bent part 51 deeply enters a first bent part 42. A second bent part 41 deeply enters a fourth bent part 52. The remaining space when the three tape cassettes are stored in the cassette storage part is buried by the buffer material 1 for packaging.

Description

  The present invention relates to a cushioning material for packing that fills a gap.

  Conventionally, it has a cylindrical shape including a top plate, left and right side plates, and a bottom plate, and is bent into a V-shape inward in a longitudinal section across at least a part of the height direction of both side plates. A packaging cushioning material made of corrugated paper that can be bent and expanded vertically by elasticity is known (see, for example, Patent Document 1).

JP 2010-36925 A

  The cushioning material for packing described in Patent Literature 1 has a limited range of deformation and cannot sufficiently cope with changes in the number and size of the objects to be stored. The remaining space in the storage portion of the storage object varies depending on the shape of the storage object to be packed. Therefore, the cushioning material for packing needs to be newly designed according to what is packed, and there is a problem that the cost increases.

  An object of the present invention is to provide a packing cushioning material that can be freely changed in one direction.

  The packing cushioning material according to the present invention includes a rectangular first flat plate, a rectangular second flat plate facing the first flat plate, one end of the first flat plate, and one end of the second flat plate. Between the first side plate provided between the first flat plate, the other end of the first flat plate opposite to the one end and the other end of the second flat plate opposite to the one end. A first side end portion extending in a direction intersecting with the one end portion of the first flat plate. And the second side end portion, the first insertion portion formed in the direction intersecting with the one end portion of the first flat plate, and the first side end portion and the first insertion portion, Between the first bent portion formed parallel to the one end portion of the first flat plate and bent outward of the square tube, the second side end portion and the first insertion portion, the first A second bent portion formed in parallel with the one end portion of the flat plate and bent inward of the square tube, the second side plate facing the first side end portion of the first side plate. A third side end, a fourth side end opposite to the second side end of the first side plate, an opposite end of the first flat plate opposite to the first insert. Formed between the second cut portion formed in the intersecting direction, the third side end portion and the second cut portion, in parallel with the other end portion of the first flat plate, Between the third bent portion that is bent inward, the fourth side end portion, and the second cut portion, it is formed in parallel with the one end portion of the first flat plate, and is bent outward of the square tube. A distance from the one end portion of the first flat plate to the one end portion side of the first flat plate of the first flat plate is the first bent portion. It is more than the length from the said one end part side of the said 1st plane board of the said cutting part to the distance of the said 1st bending part, and the said 2nd flat part of the said 2nd notch part from the said other end part of the said 1st plane board The distance to the other end side of the face plate is equal to or longer than the length from the other end side of the second flat plate to the second bent portion of the second cut portion, and the first bent portion The third bent portion can enter, and the second bent portion can enter the fourth bent portion.

  In this cushioning material for packing, the first bent portion and the fourth bent portion are bent to the outside of the square tube, and the second bent portion and the third bent portion are bent to the inside of the square tube. Therefore, the packing cushioning material is deformed so that the first flat plate and the second flat plate come close to each other. By changing the amount of bending from the first bent portion to the fourth bent portion, it can be changed to an arbitrary size. In addition, since the first bent portion to the fourth bent portion have a spring property, the packing cushioning material is excellent in impact resistance and can serve as a cushioning material. Further, since the third bent portion can enter the first bent portion and the second bent portion can enter the fourth bent portion, the first flat plate and the second flat plate come close to each other and the packing buffer The material can be deformed to a thin state. Therefore, the variable amount of the distance between the first flat plate and the second flat plate of the packing cushioning material can be increased. Therefore, a packing cushioning material that can be freely changed in one direction can be realized. Further, even if the packing cushioning material is deformed to a thin state, the first bent portion and the fourth bent portion do not protrude from one end portion of the first flat plate.

  In the cushioning material for packing, the first cut portion and the second cut portion may be a gap having a predetermined width.

  In this case, since there is a gap in the first cut-in part and the second cut-in part, the packing cushioning material is deformed so that the first flat plate and the second flat plate come close to each other, and the third bent portion is in the third bent part. The clearance is maintained between the inner end of the second bent portion and the inner end of the third bent portion with the bent portion entering and the second bent portion entering the fourth bent portion. Therefore, it is possible to prevent the inner end portion of the second bent portion from rubbing with the inner end portion of the third bent portion.

  The packing cushioning material is formed of a corrugated board, and is provided between at least one pair of surfaces facing each other in the thickness direction of the second flat plate, and has a crest and a trough extending in a certain direction. It further includes a core that forms a wave shape by being alternately arranged, and the extending direction of the peak portion and the valley portion is parallel to the one end portion and the other end portion of the second flat plate. Good.

  In this case, the extending direction of the crest and trough of the core of the corrugated board is parallel to the one end and the other end of the second flat plate, so the one end and the other end of the second flat plate are bent. The rigidity in the direction can be increased.

FIG. 4 is a perspective view showing a state in which a tape cassette 90 and a packing cushioning material 1 are housed in a cassette housing portion 102 of the case 100. It is the perspective view which looked at the cushioning material 1 for packing from diagonally right above. It is a front view of the cushioning material 1 for packing. It is a left view of the cushioning material 1 for packing. It is the expanded view seen from the buffer material 1 for packing of 1st embodiment. FIG. 4 is a front view showing a state where one tape cassette 90 and a packing cushioning material 1 are housed in a cassette housing portion 102 of the case 100. FIG. 4 is a front view showing a state where two tape cassettes 90 and a cushioning material for packing 1 are housed in the cassette housing portion 102 of the case 100. It is a front view which shows the state by which the buffer material 1 for packing was compressed moderately. 3 is a front view showing a state in which three tape cassettes 90 and the cushioning material 1 for packing are stored in the cassette storage portion 102 of the case 100. FIG. It is a front view showing the state where packing material 1 for packing was greatly compressed. It is the expanded view seen from the buffer material 1 for packing of 2nd embodiment.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings. The drawings to be referred to are used for explaining technical features that can be adopted by the present invention, and are merely illustrative examples.

  With reference to FIG. 1, the use condition of the cushioning material 1 for packing which concerns on 1st embodiment is demonstrated. A tape printer and a tape cassette 90 (not shown) are accommodated in the case 100 during transportation. In the case 100, a door 110 and a door (not shown) can be opened and closed with a hinge (not shown). Inside the door 110, a printing device storage portion 101 for storing a tape printing device (not shown), a cassette storage portion 102 for storing a tape cassette 90, a power supply storage portion 103 for storing a power supply device (not shown), and handling (not shown) A manual storage unit 104 for storing the manuals and a gripping unit 105 are formed. The cassette storage unit 102 stores a tape cassette 90 that is a storage object and a packing cushioning material 1 for filling a gap.

  Next, the structure of the cushioning material 1 for packing according to the first embodiment will be described with reference to FIGS. As shown in FIG. 5, the packing cushioning material 1 is constituted by a substantially rectangular corrugated board 7 in plan view. The corrugated board 7 is provided between the front and back surfaces of the corrugated board 7 facing each other, and is alternately arranged with crests and valleys extending in a direction perpendicular to the longitudinal direction of the corrugated board 7. A corrugated core 2 is provided. The extending direction of the peaks and valleys of the core 2 is parallel to the one end 21 and the other end 22 of the second flat plate 20. Therefore, the bending strength in the direction orthogonal to the longitudinal direction of the corrugated board 7 is improved.

  As shown in FIGS. 2 to 4, the cushioning material 1 for packing includes a first flat plate 10 having a rectangular shape in plan view, a second flat plate 20 having a rectangular shape in plan view facing the first flat plate 10, and a first flat plate. A first side plate 40 provided between one end portion 11 of the face plate 10 and one end portion 21 of the second flat plate 20, the other end portion 12 opposite to the one end portion 11 of the first flat plate 10, and the first. The biplanar plate 20 is formed in the shape of a square tube provided with a second side plate 50 provided between the other end 22 opposite to the one end 21. Further, a third flat plate 30 having a rectangular shape in plan view is provided inside the first flat plate 10 in parallel with the first flat plate 10. One end 31 of the third flat plate 30 approaches the one end 11 of the first flat plate 10, and the other end 32 of the third flat plate 30 is connected to the second side plate 50.

  Next, the first side plate 40 will be described with reference to FIGS. 2, 3, and 5. The first side plate 40 is a first side end 43 and a second side end that are ends in the width direction of the first side plate 40 extending in a direction intersecting the one end 11 of the first flat plate 10. 44. Between the first side end portion 43 and the second side end portion 44, it is formed in a direction intersecting (as an example, orthogonal) with one end portion 11 of the first flat plate 10 and one end portion 21 of the second flat plate 20. A first notch 45, which is a cut, is formed to a predetermined length. The first side plate 40 is parallel to the one end 11 of the first flat plate 10 and the one end 21 of the second flat plate 20 between the first side end portion 43 and the first insertion portion 45. A first bent portion 42 that is formed and bent outward from the rectangular tube is provided. As an example, the first insertion portion 45 is formed at the center of the first side end 43 and the second side end 44 of the first side plate 40.

  The first bent portion 42 is a first flat portion between the top portion 42 </ b> A that is the top of the outer side (the back surface side in FIG. 5) of the first side plate 40, and the top portion 42 </ b> A and the one end portion 11 of the first flat plate 10. A second flat surface is formed between a trough portion 42B that is formed in parallel with the one end portion 11 of the face plate 10 and is valley-folded from the outside (the back surface side in FIG. 5), and between the top portion 42A and the one end portion 21 of the second flat plate 20. A trough portion 42 </ b> C is formed in parallel with the one end portion 21 of the face plate 20 and is valley-folded from the outside (the back surface side in FIG. 5). The top portion 42 </ b> A is formed at an intermediate portion between the one end portion 11 of the first flat plate 10 and the one end portion 21 of the second flat plate 20. One end 45A of the first insert 45 is the starting point of the valley 42B, and the other end 45B of the first insert 45 is the starting point of the valley 42C. As shown in FIG. 5, the distance L1 between the one end portion 11 of the first flat plate 10 and the valley portion 42B is equal to or longer than the distance L2 between the valley portion 42B and the top portion 42A. Further, the distance L3 between the one end portion 21 of the second flat plate 20 and the valley portion 42C is equal to or longer than the distance L4 between the valley portion 42C and the top portion 42A. Further, between the second side end portion 44 of the first side plate 40 and the first insertion portion 45, the first side plate 10 is formed in parallel with the one end portion 11 of the first flat plate 10 and the one end portion 21 of the second flat plate 20. A second bent portion 41 that is bent inside the rectangular tube is formed. The second bent portion 41 is a fold for folding the first side plate 40 from the outside (from the back side in FIG. 5).

  Next, the second side plate 50 will be described with reference to FIGS. 2, 3 and 5. The second side surface plate 50 is an end portion in the width direction of the second side surface plate 50 extending in a direction intersecting with the other end portion 22 of the second flat plate 20 and the other end portion 32 of the third flat plate 30. A third side end 53 and a fourth side end 54 are provided. The third side end portion 53 faces the first side end portion 43 of the first side plate 40. The fourth side end portion 54 faces the second side end portion 44 of the first side plate 40. Moreover, between the 3rd side edge part 53 and the 4th side edge part 54, it intersects with the other end part 32 of the 3rd plane board 30, and the other end part 22 of the 2nd plane board 20, respectively (for example, orthogonal). A second cut portion 55, which is a cut formed in the direction to be cut, is formed to a predetermined length. As an example, the second notch 55 is formed at the center of the third side end 53 and the fourth side end 54 of the second side plate 50.

  Further, the second side plate 50 is parallel to the other end portion 32 of the third flat plate 30 and the other end portion 22 of the second flat plate 20 between the fourth side end portion 54 and the second cut portion 55. And a fourth bent portion 52 that is bent outward from the rectangular tube. The fourth bent portion 52 is a third portion between the top 52A that is the top of the outer side of the second side plate 50 (the back side in FIG. 5), and the top 52A and the other end 32 of the third flat plate 30. Between the trough 52B that is formed in parallel with the other end 32 of the flat plate 30 and is valley-folded from the outside (the back side in FIG. 5), and between the top 52A and the other end 22 of the second flat plate 20 A trough portion 52C is formed in parallel with the other end portion 22 of the second flat plate 20 and is valley-folded from the outside (the back surface side in FIG. 5). The top 52 </ b> A is formed at an intermediate portion between the other end portion 32 of the third flat plate 30 and the other end portion 22 of the second flat plate 20. One end portion 55A of the second cut portion 55 is the starting point of the valley portion 52B, and the other end portion 55B of the second cut portion 55 is the starting point of the valley portion 52C. A distance L5 between the other end 32 of the third flat plate 30 and the valley 52B is equal to or longer than a distance L6 between the valley 52B and the top 52A. Further, the distance L7 between the other end 22 of the second flat plate 20 and the trough 52C is equal to or longer than the distance L8 between the trough 52C and the top 52A. Further, between the third side end portion 53 of the second side plate 50 and the second notch portion 55, the other end portion 32 of the third flat plate 30 and the other end portion 22 of the second flat plate 20 are parallel to each other. A third bent portion 51 that is formed and bent inside the square tube is formed. The third bent portion 51 is a fold for folding the second side plate 50 from the outside (from the back side in FIG. 5). In FIG. 5, the second cut portion 55 is formed on an imaginary line extending in the direction in which the first cut portion 45 is formed. Therefore, when assembling the cushioning material 1 for packing as shown in FIGS. 2 and 3, the second cut portion 55 faces the first cut portion 45 at all.

  Next, with reference to FIG. 5, the corrugated board 7 which developed the packing cushioning material 1 will be described. FIG. 5 shows the inner surface of the packing cushioning material 1 developed. The corrugated cardboard plate 7 having a substantially rectangular shape in plan view has a first flat plate 10, a first side plate 40, a second flat plate 20, a second side plate 50, and a third flat plate from the lower side to the upper side in FIG. The face plates 30 are arranged in a line. The first flat plate 10, the second flat plate 20, the third flat plate 30, the first side plate 40, and the second side plate 50 are each rectangular in plan view. Between the 1st plane board 10 and the 1st side board 40, the crease | fold 3 which folds from the outside (FIG. 5 back side) in the direction orthogonal to the longitudinal direction of the corrugated board board 7 is provided, and the 1st side board Between the second flat plate 20 and the second flat plate 20, a crease 4 is provided for mountain-folding from the outside (the back side in FIG. 5) in a direction orthogonal to the longitudinal direction of the corrugated board 7. Between the side plates 50, a crease 5 is provided that folds from the outside (the back side in FIG. 5) in a direction orthogonal to the longitudinal direction of the corrugated board 7, and the second side plate 50 and the third plane plate 30. Between them, a crease 6 is provided that folds from the outside (the back side in FIG. 5) in a direction perpendicular to the longitudinal direction of the corrugated board 7.

  Accordingly, the corrugated board 7 is valley-folded from the inside (the front surface side in FIG. 5) at the crease 3, the crease 4, the crease 5 and the crease 6, and the top portion 42A and the fourth bend portion 52 of the first bend portion 42 are obtained. 52A is valley-folded from the inside (surface side in FIG. 5), and the second bent portion 41, the third bent portion 51, and the valley portions 42B, 42C, 52B, and 52C are peaks from the inside (surface side in FIG. 5). It is folded. Next, when the third flat plate 30 is stacked on the inner side of the first flat plate 10, the packing cushioning material 1 which is a substantially cylindrical spindle in a front view shown in FIGS. 2 to 4 is formed. What is necessary is just to determine the magnitude | size of the cardboard board 7 according to the magnitude | size of the cushioning material 1 for packing to form.

  Next, storage of the tape cassette 90 and the packing cushioning material 1 in the cassette storage portion 102 of the case 100 will be described with reference to FIGS. 3 and 6 to 10. First, the case where one tape cassette 90 and the cushioning material 1 for packing are accommodated in the cassette accommodating part 102 is demonstrated with reference to FIG.3 and FIG.6. When one tape cassette 90 is stored in the cassette storage unit 102, the remaining space of the cassette storage unit 102 becomes large. Therefore, as shown in FIGS. 3 and 6, the packing cushioning material 1 with a small amount of deformation is inserted into the remaining space of the cassette housing portion 102. In this case, the first bent portion 42, the second bent portion 41, the third bent portion 51, and the fourth bent portion 52, which are folds of the corrugated board 7 of the packing cushioning material 1, are less bent due to the rigidity of the cardboard board 7. Thus, the distance between the first flat plate 10 and the second flat plate 20 becomes long. Therefore, as shown in FIG. 3, the third bent portion 51 does not enter the first bent portion 42, and the second bent portion 41 does not enter the fourth bent portion 52. As shown in FIG. 6, the packing cushioning material 1 fills the remaining space in which one tape cassette 90 is stored in the cassette storage unit 102.

  Next, a case where the two tape cassettes 90 and the packing cushioning material 1 are stored in the cassette storage unit 102 will be described with reference to FIGS. When two tape cassettes 90 are stored in the cassette storage unit 102, the remaining space of the cassette storage unit 102 is less than half. Accordingly, as shown in FIGS. 7 and 8, the cushioning material 1 for packing having a medium deformation amount is inserted. In this case, as shown in FIG. 8, the third bent portion 51 enters the first bent portion 42, and the second bent portion 41 enters the fourth bent portion 52. As shown in FIG. 7, the packing cushioning material 1 fills the remaining space in which the two tape cassettes 90 are stored in the cassette storage unit 102.

  Next, the case where three tape cassettes 90 and the cushioning material 1 for packing are accommodated in the cassette accommodating part 102 is demonstrated with reference to FIG.9 and FIG.10. When three tape cassettes 90 are stored in the cassette storage unit 102, the remaining space of the cassette storage unit 102 becomes very small. Therefore, as shown in FIG. 9 and FIG. 10, the deformation amount is large and the crushed packing cushioning material 1 is inserted. In this case, as shown in FIG. 10, the third bent portion 51 enters the first bent portion 42 deeply and the second bent portion 41 enters the fourth bent portion 52 deeply. The remaining space in which the three tape cassettes 90 are stored in the cassette storage unit 102 is filled with the packing cushioning material 1 as shown in FIG.

  As described above, in the cushioning material 1 for packing according to the first embodiment, the third bent portion 51 can enter the first bent portion 42 and the second bent portion 41 can enter the fourth bent portion 52. The first flat plate 10 and the second flat plate 20 are close to each other and the packing cushioning material 1 can be deformed to a thin state. Therefore, the variable amount of the distance between the first flat plate 10 and the second flat plate 20 of the packing cushioning material 1 can be increased. Therefore, the packing cushioning material 1 that can be freely changed in one direction can be provided. Further, since the first bent portion 42, the second bent portion 41, the third bent portion 51, and the fourth bent portion 52 have a spring property due to the rigidity of the corrugated board 7, the packing cushioning material 1 is excellent in impact resistance and buffered. Can fully play the role of wood. Moreover, since the 3rd plane board 30 overlaps with the 1st plane board 10, the intensity | strength of the cushioning material 1 for packing goes up. Further, since the extending direction of the crests and troughs of the core 2 of the corrugated board 7 is parallel to the one end 21 and the other end 22 of the second flat plate 20, the one end 21 of the second flat plate 20. And the rigidity to the direction which bends the other end part 22 can be improved.

  Moreover, in the cushioning material 1 for packing of 1st embodiment, the distance L1 between the one end part 11 and the trough part 42B of the 1st plane board 10 is the distance L2 between the trough part 42B and the top part 42A. It is more than length. Further, the distance L3 between the one end portion 21 of the second flat plate 20 and the valley portion 42C is equal to or longer than the distance L4 between the valley portion 42C and the top portion 42A. Further, the distance L5 between the other end portion 32 of the third flat plate 30 and the valley portion 52B is not less than the length of the distance L6 between the valley portion 52B and the top portion 52A. Further, the distance L7 between the other end 22 of the second flat plate 20 and the trough 52C is equal to or longer than the distance L8 between the trough 52C and the top 52A. Therefore, even if the packing cushioning material 1 is deformed to a thin state, the first bent portion 42 does not protrude from the one end portion 11 of the first flat plate 10 and the one end portion 21 of the second flat plate 20. Further, the fourth bent portion 52 does not protrude from the other end portion 12 of the first flat plate 10 and the other end portion 22 of the second flat plate 20.

  Next, a second embodiment of the present invention will be described with reference to FIG. The cushioning material 1 for packing of the second embodiment is different from the first embodiment only in the shapes of the first insertion portion 46 and the second cutting portion 56, and the other shapes are the same. Therefore, only differences from the first embodiment will be described. As shown in FIG. 11, the first cut portion 46 of the cushioning material 1 for packing according to the second embodiment is a rectangular opening having a width L9, and the second cut portion 56 has a width L10. It is the opening part of the planar view rectangle which was made. When the first notch 46 and the second notch 56 have a predetermined width, there are gaps in the first notch 46 and the second notch 56, respectively. In the state where the cushioning material 1 for packing is deformed so that the flat plate 20 approaches, the third bent portion 51 enters the first bent portion 42, and the second bent portion 41 enters the fourth bent portion 52. A clearance is maintained between the inner end of the second bent portion 41 in the width direction and the inner end of the third bent portion 51 in the width direction. Therefore, it is possible to prevent the inner end portion of the second bent portion 41 and the inner end portion of the third bent portion 51 from rubbing against each other.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, the first insertion portion 45 is not the center between the first side end portion 43 and the second side end portion 44 of the first side face plate 40 but the first side end portion 43 side or the second side end portion 44 side. You may be on either side. In this case, the second cut portion 55 is brought close to either the third side end portion 53 or the fourth side end portion 54 of the second side face plate 50 so as to face the first cut portion 45 at all. The packing cushioning material 1 can cope with not only the change in the number of tape cassettes 90 but also the change in the thickness of one tape cassette 90. In addition, the cushioning material 1 for packing can be used in order to fill the clearance gap between the storage parts of various things to be stored other than the above embodiment.

DESCRIPTION OF SYMBOLS 1 Packing cushioning material 7 Corrugated board 10 First flat board 11 One end part 12 Other end part 20 Second flat board 21 One end part 22 Other end part 30 Third flat board 31 One end part 32 Other end part 40 First side board 41 Second bent portion 42 First bent portion 43 First side end portion 44 Second side end portion 45 First insert portion 50 Second side plate 51 Third bent portion 52 Fourth bent portion 53 Third side end portion 54 First Four side end portions 55 Second cut portion 90 Tape cassette 100 Case 102 Cassette housing portion

Claims (3)

A rectangular first plane plate;
A rectangular second flat plate facing the first flat plate;
A first side plate provided between one end of the first plane plate and one end of the second plane plate;
A square tube comprising a second side plate provided between the other end of the first flat plate opposite to the one end and the other end of the second flat plate opposite to the one end. Formed in the shape of
The first side plate is
A first side end and a second side end extending in a direction intersecting with the one end of the first plane plate;
A first insertion portion formed in a direction intersecting with the one end portion of the first flat plate;
Between the first side end portion and the first insertion portion, a first bent portion that is formed in parallel with the one end portion of the first flat plate and bends to the outside of the square tube,
Between the second side end portion and the first insertion portion, a second bent portion that is formed in parallel with the one end portion of the first flat plate and is bent inside the square tube,
The second side plate is
A third side end facing the first side end of the first side plate;
A fourth side end facing the second side end of the first side plate;
A second notch formed opposite to the first notch and formed in a direction intersecting the other end of the first flat plate;
Between the third side end portion and the second cut portion, a third bent portion that is formed in parallel with the other end portion of the first flat plate and bends inward of the square tube,
Between the fourth side end portion and the second cut portion, a fourth bent portion that is formed in parallel with the one end portion of the first flat plate and bends outward of the square tube,
The distance from the one end of the first flat plate to the one end of the first flat plate of the first flat plate is from the one end of the first flat plate of the first flat plate. More than the length to the distance of the first bent portion,
The distance from the other end portion of the first flat plate to the other end portion side of the second flat plate of the second cut portion is the other end portion side of the second flat plate of the second cut portion. Or longer than the distance from the second bent portion,
The third bent portion can enter the first bent portion;
The cushioning material for packing, wherein the second bent portion can enter the fourth bent portion.   The packing cushioning material according to claim 1, wherein the first cut portion and the second cut portion are gaps having a predetermined width. The packing cushioning material is formed from a corrugated board,
A core that is provided between at least one pair of surfaces facing each other in the thickness direction of the second flat plate and has a wave shape by alternately arranging peaks and valleys extending in a certain direction. Further comprising
The cushioning material for packing according to claim 1 or 2, wherein the extending direction of the peak and the valley is parallel to the one end and the other end of the second flat plate.

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