JP2018034874A - Cushioning material for packing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning material for packing, excellent in a cushioning function by eliminating sinking of a loading flat plate part loaded with an article.SOLUTION: A cushioning material for packing includes: a loading flat plate part 7 loaded with an article Z; bottom flat plate parts 8,8 folded to a reverse face 7B of the loading flat plate part 7; first shape retention side flat plate parts 16,16 folded to a reverse face 15B of raised standing flat plate parts 15,15; and second shape retention side flat plate parts 17,17 folded to a reverse face 16B of the folded shape retention side parts 16,16. Each of the bottom flat plate parts 8,8 is formed in a chevron shape by abutting each vertical edge end of a base flat plate on a reverse face 7B of the loading flat plate part 7, and abutting each vertical edge end of the base flat plate on each other. Chevron-shaped apex parts 19,19 of the bottom flat plate parts 8,8, and folding parts 20, 20 to be a boarder line between the first and second shape retention side flat plate parts 16,17 are arranged on the same plane W in parallel to the reverse face 7B of the loading flat plate parts 7,7.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a packing cushioning material that packs and transports (transports) an article (product).

As a cushioning material for packing, Patent Document 1 discloses a packing tool for transporting goods. The article transporting packaging device includes a base board, a pair of falling portions, a pair of rising portions, and a restraining sheet. Each falling portion is connected to both end edges of the base board and has a leg portion and a bottom portion. Each rising portion is connected to both side edges of the base board. The restraining sheet is laminated on the surface of the base board and fixed to both end edges of the falling part.
In the article transporting packaging tool, articles are arranged between a base board and a holding sheet and stacked on the base board. In the article transportation packaging tool, each rising portion is folded upward from both side edges of the base board, and the shape retaining portion is erected. In addition, each falling portion is folded downward from both end edges so that the leg portion is held at a right angle with respect to the base board, and the bottom portion is held in a parallel direction. The restraining sheet tensions and fixes the article to the base board by folding the falling part.
The article transporting packing tool in which articles are packed is accommodated in the outer box from each bottom portion, and a space having a rising height of each leg portion is formed on the lower surface of the base board.
In Patent Document 1, an impact during transportation (transportation) of an article is absorbed by the space of the rising height of each leg (buffer function).

JP 2006-248549 A

  However, in Patent Document 1, since the baseboard on which the article is loaded is supported by the falling portions (the leg portion and the bottom portion) of both edges of the baseboard, when the weight of the article increases, the baseboard is brought together with the article. May sink and come into contact with the bottom of the outer box, reducing the buffer function.

  An object of the present invention is to provide a packaging cushioning material having an excellent cushioning function by eliminating sinking of a loading flat plate portion on which articles are loaded.

  A first aspect of the invention is a cushioning material for packing provided with a basic flat plate and a presser sheet, and the basic flat plate has a vertical center line in the vertical direction and a lateral width perpendicular to the vertical center line. A center line, a pair of first bent lines arranged in parallel on both sides of the horizontal center line, and a pair of vertical lines arranged in parallel on both sides of the vertical center line and orthogonal to the first bent lines. A pair of quadrangular base plates that are defined by the first bent straight lines and the vertical edge ends, and a pair that is connected to the base flat plates along the first bent straight lines. A pair of second bent straight lines that are arranged in parallel across the first plate width on both sides of the longitudinal center line and orthogonal to the first bent straight lines. And between each of the second bent straight lines and each of the vertical edge ends of the base plate, with each second bent straight line across a second plate width, and A pair of third bent straight lines that are arranged in parallel to each other at the vertical edge ends of the flat plate across a third plate width, and orthogonal to the first bent straight lines, and each first bent straight line And the stacked flat plate section partitioned by the respective second bent straight lines, folded back to the back surface of the stacked flat plate section along the respective second bent straight lines, and bent along the respective third bent straight lines. And a pair of bottom flat plate portions formed in a chevron shape, and each side flat plate includes a pair of vertical edge ends in the horizontal direction, a horizontal edge end in the vertical direction, and the second bent portions. A first acute angle is arranged on the longitudinal center line side with respect to a straight line, from a first intersection of the first bent straight line and the second bent straight line to each lateral edge of the side plate. A second acute angle with respect to each of the pair of fourth bent straight lines and each first bent straight line located between each third bent straight line and each vertical edge of the base plate. And a pair of fifth bent straight lines extending from the second intersection of the first bent straight lines and the third bent straight lines to the vertical edge ends of the side plates. And a rising-side flat plate portion that is bent along the first bent straight line to the surface side of the stacking flat plate portion and stands on the stacked flat plate portion, the first bent straight lines, and the fourth A pair of first shape-retaining side flat plate portions that are folded back on the back surface of the rising side flat plate portion along the bent straight line, and each of the first bent straight lines and each of the fifth bent straight lines. A pair of second shape-retaining side flat plate portions that are folded back on the back surface of the shape-retaining side flat plate portion, and the presser sheet is laminated on the surface of the base plate, and the lateral sheet vertical edge end side Is fixed to each vertical edge end side of the base plate, covers the article loaded on the surface of the loading plate portion, and each of the above-mentioned second bent straight lines Tensioning and fixing the article to the stacking plate portion by folding back the bottom plate, each bottom plate portion abutting each vertical edge of the base plate portion against the back surface of the loading plate portion, and The vertical edge ends of the base plate are in contact with each other to form a chevron shape, the third bent straight lines of the bottom flat plate portions formed in the chevron shape, the first and second retaining plates. Each said 5th bending straight line used as the boundary line of a shape side flat plate part is a cushioning material for packing characterized by being arrange | positioned on the same plane parallel to the back surface of the said loading flat plate part.

According to the first aspect of the present invention, each lateral edge of the base plate (each bottom plate part) is in contact with the back surface of the stacking plate part, and each side edge of the base plate is mutually connected. A fifth bent straight line that serves as a boundary line between each first and second shape-shaped flat plate portion and each third bent straight vertex portion of the bottom flat plate portion of the mountain shape (mountain shape) in contact with Since the articles (goods) loaded on the surface of the loading flat plate portion are supported by the folded portions, the loading flat plate portion does not sink due to the weight of the goods (goods).
Thereby, even if the packing cushioning material in which the article (product) is packed is stored in the packing box and transported (transported), the loaded flat plate portion does not contact the bottom of the packing box due to the weight of the article (product). Therefore, the buffer function is excellent.

FIG. 5 is a developed perspective view showing a basic flat plate body and a presser sheet in a state where a packing cushioning material is developed. FIG. 5 is a developed surface view showing a basic flat plate body in a state where the cushioning material for packing is developed. It is the state which expanded the buffer material for packing, Comprising: It is an expansion | deployment reverse view which shows a basic flat plate body and a pressing sheet. FIG. 6 is a partially enlarged view of FIG. 2 showing the fourth and fifth bent straight lines of each side plate and the lateral edge of the packing cushioning material. FIG. 3 is a partially enlarged view of FIG. 2 illustrating a lateral edge of each side plate and a folding hole in the packing cushioning material. It is the state which expanded the buffer material for packing, and is a deployment top view showing a basic flat body and a presser sheet. FIG. 5 is a developed side view showing a basic flat plate body and a presser sheet in a state where the cushioning material for packing is developed. (A) is AA sectional drawing of FIG. 2, (b) is the DD arrow expanded sectional view of Fig.8 (a). (A) is BB sectional drawing of FIG. 2, (b) is the EE arrow expanded sectional view of Fig.9 (a). (A) is CC sectional drawing of FIG. 2, (b) is an FF arrow expanded sectional view of Fig.10 (a). It is a figure explaining the assembly (packing of goods) of the cushioning material for packing, Comprising: Each bottom flat plate is bend | folded to the surface side of a loading flat plate part along each 1st bending straight line, and each 1st of each side flat plate is It is the perspective view which bent the shape retention side flat plate part to the surface side of the loading flat plate part along each 4th bending straight line. It is a figure explaining the assembly (packing of goods) of the cushioning material for packing, Comprising: Each bottom flat plate part is turned back to the back surface of a loading flat plate part along each 2nd bending straight line, and each 1st maintenance of each side flat plate is carried out. It is the perspective view which turned up the shape side flat plate part on the back surface of the standing side flat plate part along each 4th bending straight line. It is a figure explaining the assembly (packing of articles | goods) of the cushioning material for packing, Comprising: The standup side flat plate part of each side flat plate, each 1st shape retention side flat plate portion, and each 2nd shape retention side flat plate portion It is the perspective view which bent to the surface side of the loading flat plate part along 1 bending straight line, and stood up on the loading flat plate part. It is a cushioning material for packing in which articles are packed, and is a side view showing each bottom flat plate portion, a rising side flat plate portion of each side flat plate, each first shape retaining side flat plate portion, and each second shape retaining side flat plate portion. is there. It is the cushioning material for packing which packed the article | item, Comprising: It is a front view which shows each bottom flat plate part, the standing-up side flat plate part of each side flat plate, each 1st shape retention side flat plate portion, and each 2nd shape retention side flat plate portion is there. It is GG sectional drawing of FIG. It is HH sectional drawing of FIG. FIG. 18 is a partially enlarged view of FIG. 17. It is a perspective view which shows the buffer material for packing which packed the articles | goods, and a packaging box. It is the top view which accommodated the shock absorbing material for packing which packed the articles | goods in the packing box. It is II sectional drawing of FIG.

The packing cushioning material according to the present invention will be described with reference to FIGS.
For convenience of explanation, the unfolded packing cushioning material before assembly will be described first, and then the procedure for assembling the packing cushioning material and packing an article (product) will be described.

  In FIG. 1 thru | or FIG. 10, the cushioning material X for packing is provided with the base flat body 1 and the presser sheet 2 (presser film).

<Basic flat plate 1>
The basic flat plate 1 is formed of sheet material (sheet material) such as bendable paper or synthetic resin, for example, corrugated cardboard (paper corrugated cardboard sheet), plastic corrugated cardboard sheet, or the like.
As shown in FIGS. 1 to 3, the basic flat plate 1 includes a vertical center line a in the vertical direction V, a horizontal center line b in the horizontal direction Y orthogonal to the vertical center line a, and a plurality (a pair) of first bent portions. It has straight lines L1, L1 and a plurality (a pair) of vertical edge ends 3, 3 (vertical edge end surfaces).
As shown in FIGS. 1 to 3, the basic flat plate 1 is formed in, for example, a line-symmetric shape with the horizontal center line b as an axis of symmetry.

  The first bent straight lines L1 and L1 are arranged on both sides of the horizontal center line b as shown in FIGS. Each of the first bent straight lines L1 and L1 is arranged in parallel with the horizontal center line b with a plate length T1 in the vertical direction V. Each of the first bent straight lines L1 and L1 extends between the vertical edge ends 3 and 3 in the horizontal direction Y.

  The vertical edge ends 3 and 3 (vertical edge end surfaces) are arranged on both sides of the vertical center line a in the horizontal direction Y, as shown in FIGS. The vertical edge ends 3 and 3 are arranged in the horizontal direction Y in parallel to the vertical center line a with a fourth plate width H4 therebetween. Each of the vertical edge ends 3 and 3 extends in the vertical direction V and is orthogonal to each of the first bent straight lines L1 and L1.

As shown in FIGS. 1 to 10, the basic flat plate 1 is composed of a square (square, rectangular) base plate 5 and a plurality (a pair) of side plates 6 and 6 (the basic flat plate 1 is a base plate). A flat plate 5 and side plates 6 and 6).
As shown in FIGS. 1 to 3, the base plate 5 is partitioned by the first bent straight lines L <b> 1 and L <b> 1 and the vertical edge ends 3 and 3 (vertical edge surface).
As shown in FIGS. 1 to 3 and FIGS. 7 to 9, the side flat plates 6 and 6 are arranged on both sides of the base plate 5 in the vertical direction V. The side flat plates 6 and 6 are connected to the base plate 5 along the first bent straight lines L1 and L1.
In the basic flat plate body 1, the first bent straight lines L <b> 1 and L <b> 1 are boundaries between the base plate 5 and the side flat plates 6 and 6.

<Base plate 5>
As shown in FIGS. 1 to 4, the base plate 5 has a plurality (a pair) of second bent straight lines L2 and L2 and a plurality (a pair of) third bent straight lines L3 and L3.

  The second bent straight lines L2 and L2 are arranged on both sides of the vertical center line b in the horizontal direction Y, as shown in FIGS. The second bent straight lines L2 and L2 are arranged in the horizontal direction Y parallel to the vertical center line b with a first plate width H1 therebetween. As shown in FIGS. 1 to 4, the second bent straight lines L2 and L2 extend in the vertical direction V and are orthogonal to the first bent straight lines L1 and L1.

  Each of the third bent straight lines L3 and L3 is disposed between each of the second bent straight lines L2 and L2 and each of the vertical edge ends 3 and 3 of the base plate 5, as shown in FIGS. Each of the third bent straight lines L3, L3 is separated from the adjacent second bent straight line L2 by a second plate width H2 in the horizontal direction Y, and each of the vertical edge ends 3, 3 of the adjacent base plate 5 is provided. Are arranged in parallel with a third plate width H3 therebetween. As shown in FIGS. 1 to 4, the third bent straight lines L3 and L3 extend in the vertical direction V and are orthogonal to the first bent straight lines L1 and L1.

  As shown in FIGS. 1 to 4 and FIGS. 7 to 10, the base plate 5 includes a rectangular stacking plate portion 7 and a plurality (a pair) of bottom plate portions 8 and 8 (the base plate 5 is A loading flat plate portion 7 and bottom flat plate portions 8 and 8).

  As shown in FIGS. 1 to 3, the loading flat plate portion 7 is partitioned into a quadrangle (rectangle) by the first bent straight lines L1 and L1 and the second bent straight lines L2 and L2.

  The bottom flat plate portions 8, 8 are arranged on both sides of the loading flat plate portion 7 in the lateral direction Y, as shown in FIGS. The bottom flat plate portions 8 and 8 are partitioned into quadrangular (rectangular) shapes by the first bent straight lines L1 and L1, the second bent straight lines L2 and L2, and the vertical edge ends 3 and 3 of the base plate 5, respectively. The bottom flat plate portions 8 and 8 have vertical edge ends 3 and 3 (vertical edge end surfaces), and are connected to the loading flat plate portion 7 along the second bent straight lines L2 and L2.

In the base plate 5, the second bent straight lines L <b> 2 and L <b> 2 serve as boundary lines between the loading flat plate portion 7 and the bottom flat plate portions 8 and 8.
In the basic flat plate 1, the fourth plate width H4 is a plate width H4 = H1 + H2 + H3 obtained by integrating the first to third plate widths H1, H2, and H3.

<Side plates 6, 6>
As shown in FIGS. 1 to 4, each side plate 6, 6 has a plurality (a pair) of vertical edge ends 9, 9 (vertical edge end surfaces) in the horizontal direction Y, and a horizontal edge end 10 (horizontal edge) in the vertical direction V. End face), a plurality (a pair) of fourth bent straight lines L4, L4 (vertical bent inclined straight lines), and a plurality (a pair) of fifth bent straight lines L5, L5 (lateral bent inclined straight lines).

As shown in FIG. 4, the vertical edge ends 9 and 9 of the side plates 6 and 6 are respectively connected to the first bent straight line L <b> 1 and the base edge 5 of the base plate 5 (the bottom flat plate portions 8 and 8). 3 intersect at a third intersection P3, P3.
As shown in FIG. 4, each of the vertical edge ends 9, 9 is third on the vertical center line a side (inside of the side plate) with respect to each vertical edge end 3, 3 (vertical edge end surface) of the base plate 5. They are arranged with an acute angle θ3. The vertical edge ends 9 and 9 extend in the vertical direction V from the third intersections P3 and P3 while being inclined in the horizontal direction Y toward the vertical center line a (third bent straight line L3).
Accordingly, the vertical edge ends 9 and 9 (vertical edge end surfaces) are connected (continuously) to the vertical edge ends 3 and 3 of the base plate 5.

In each of the side plates 6 and 6, the lateral edge 10 is located between the longitudinal edges 9 and 9 as shown in FIGS. )
As shown in FIGS. 2, 4, and 5, the lateral edge 10 (lateral edge surface) includes a plurality (a pair) of first inclined lateral edges 10 </ b> A and 10 </ b> A (first inclined lateral edge surfaces), parallel lateral edges. It has an end 10B (parallel horizontal edge end surface) and a plurality (a pair) of second inclined horizontal edge ends 10C, 10C (second inclined horizontal edge end surfaces).

As shown in FIGS. 2 and 4 to 6, the first inclined horizontal edge ends 10 </ b> A and 10 </ b> A are connected (continuously) so as to intersect with the vertical edge ends 9 and 9 of the side plates 6 and 6. .
As shown in FIG. 4, each of the first inclined horizontal edge ends 10A, 10A is parallel to the horizontal center line b (first bent straight line L1), and each of the vertical edge ends 9, 9 and each first inclined horizontal edge. With respect to the reference straight line L6 passing through the fourth intersections P4, P4 of the ends 10A, 10A, the fourth acute angle θ4 is arranged on the lateral center line b (first bent straight line L1) side (base plate 5 side). The The first inclined horizontal edge ends 10A and 10A extend in the horizontal direction Y from the fourth intersections P4 and P4 while being inclined toward the horizontal center line b (first bent straight line L1) in the vertical direction V. Is done.

  As shown in FIGS. 2 and 4 to 6, the parallel lateral edge 10 </ b> B is disposed between the first inclined lateral edges 10 </ b> A and 10 </ b> A. In the longitudinal direction V, the parallel horizontal edge end 10B is disposed in parallel to the first folding line L1 with an interval. The parallel lateral edge 10B extends in the lateral direction Y with an end length M1 on both sides of the longitudinal center line a.

As shown in FIGS. 2 and 4 to 6, the second inclined horizontal edge ends 10 </ b> C and 10 </ b> C are respectively disposed between the first inclined horizontal edge ends 10 </ b> A and 10 </ b> A and the parallel horizontal edge ends 10 </ b> B. Each second inclined horizontal edge 10C, 10C intersects each adjacent first inclined horizontal edge 10A, 10A and parallel horizontal edge 10B, and each first inclined horizontal edge 10A, 10A and parallel horizontal edge It is connected (continuous) to the end 10B.
Each of the second inclined horizontal edge ends 10C and 10C is arranged at a fifth acute angle θ5 on the horizontal center line b side (first bent straight line L1 side) with respect to the parallel horizontal edge end 10B.
The second inclined horizontal edge ends 10C and 10C are inclined toward the horizontal center line b (first bent straight line L1) in the vertical direction V, while the second inclined horizontal edge edges 10C and 10C and the parallel horizontal edges are inclined. It extends in the lateral direction Y from the fifth intersections P5, P5 of the end 10B, and intersects each first inclined lateral edge 10A, 10A.
Thereby, in each side plate 6 and 6, each vertical edge end 9 and 9 and horizontal edge end 10 (each 1st inclination horizontal edge edge 10A, 10A, parallel horizontal edge edge 10B, and each 2nd inclination horizontal edge edge 10C). , 10C) are continuously provided. Further, the vertical edge ends 9 and 9, the lateral edge end 10, and the vertical edge ends 3 and 3 of the base plate 5 are the outer edge ends (outer edge end surfaces) of the basic flat plate 1.

In each of the side plates 6 and 6, the fourth bent straight lines L4 and L4 (vertical bent straight lines) are longitudinal center lines a with respect to the second bent straight lines L2 and L2, as shown in FIG. The first acute angle θ1 is disposed on the side. The fourth bent straight lines L4, L4 are inclined toward the vertical center line a in the horizontal direction Y, and the first intersections P1, P1 of the first bent straight line L1 and the second bent straight lines L2, L2 are inclined. To the lateral edge 10 of each side plate 6, 6.
Each fourth bent straight line L4, L4 intersects the lateral edge 10 (parallel lateral edge 10B, second inclined lateral edge 10C, 10C) of each side plate 6, 6 at each fifth intersection P5. .

In each of the side plates 6 and 6, the fifth bent straight lines L5 and L5 (horizontal bent inclined straight lines) are respectively connected to the vertical edge ends 3 and 3 of the base plate 5 and the second bent portions as shown in FIG. It arrange | positions in the 2nd acute angle (theta) 2 with respect to each 1st bending straight line L1 located between the straight lines L2 and L2.
As shown in FIG. 4, the fifth bent straight lines L5 and L5 are inclined in the vertical direction V while being separated from the horizontal center line b (first bent straight line L1).
The fifth bent straight lines L5 and L5 are the second of the first bent straight lines L1 and L1 and the third bent straight lines L3 and L3 in the lateral direction Y that does not intersect with the fourth bent straight lines L4 and L4. It extends from the intersections P2 and P2 to the vertical edge ends 9 and 9 of the side plates 6 and 6, and intersects the vertical edge ends 9 and 9, respectively.

  As shown in FIGS. 1 to 10, each of the side flat plates 6, 6 includes a rising side flat plate portion 15, a plurality (a pair) of first shape retaining side flat plate portions 16, 16, and a plurality (a pair) of second holding plates. (Each side flat plate 6, 6 is a rising side flat plate portion 15, each first shape retaining side flat plate portion 16, 16 and each second shape retaining side flat plate portion 17, 17. ).

  As shown in FIG. 1 to FIG. 4, the rising side flat plate portion 15 includes the first bent straight line L1, the fourth bent straight lines L4 and L4, and the lateral edge 10 of the side flat plate 6 (parallel lateral edge 10B). It is divided by.

As shown in FIGS. 1 to 4, each first shape-retaining side flat plate portion 16, 16 has a first bent straight line L <b> 1, each fourth bent straight line L <b> 4, L <b> 4, each fifth bent straight line L <b> 5, L <b> 5, Each side plate 6, 6 is defined by vertical edge ends 9, 9 and each side plate 6, 6 side edge 10 (each first and each second inclined side edge 10 </ b> B).
As shown in FIGS. 1 to 4 and 6, the first shape-retaining side flat plate portions 16, 16 are arranged on both sides of the rising-side flat plate portion 15 in the lateral direction V, and each fourth bent straight line. It is connected to the rising side flat plate portion 15 along L4 and L4.
As shown in FIG. 4, each first shape-retaining side flat plate portion 16, 16 is located between each first intersection P 1, P 1 and each second intersection P 2, P 2 (between each second and each third bent straight line). ) Are connected to the base plate 5 (the bottom plate portions 8 and 8) along the first bent straight line L1.

As shown in FIGS. 1 to 4, each of the second shape-retaining side flat plate portions 17 and 17 is located between each of the second intersections P2 and P2 and each of the third intersections P3 and P3 (each of the third bent straight lines L3 and L3). And the first bent straight line L1, the fifth bent straight lines L5 and L5, and the vertical edge ends 9 and 9 of the side plate 6 which are located between the vertical edge ends 3 and 3 of the base plate 5). .
As shown in FIGS. 1 to 4 and 7, the second shape-retaining side flat plate portions 17, 17 are respectively connected to the first shape-retaining side flat plate portions 16, 16 and the base plate 5 (respective bottom plate portions 8, 8. ).
The second shape-retaining side flat plate portions 17 and 17 are connected to the first shape-retaining side flat plate portions 16 and 16 along the fifth bent straight lines L5 and L5.
As shown in FIG. 4, each of the second shape-retaining side flat plate portions 17 and 17 is located between each of the second intersection points P2 and P2 and each of the third intersection points P3 and P3 (each of the third bent straight lines L3 and L3 and the base plate). 5 is connected to the base plate 5 (the bottom plate portions 8 and 8) along the first bent straight line L1 located between the vertical edge ends 3 and 3).

In each side flat plate 6, 6, each fourth bent straight line L 4, L 4 is a boundary line between the rising side flat plate portion 15 and each first shape retaining side flat plate portion 16, 16.
In each side flat plate 6, 6, each fifth bent straight line L 5, L 5 is a boundary line between each first shape retaining side flat plate portion 16, 16 and each second shape retaining side flat plate portion 17, 17.

As shown in FIGS. 1 to 5 and FIG. 9, each side plate 6, 6 has a plurality (a pair) of bending holes 18, 18.
Each folding hole 18, 18 is formed in each first shape retaining side flat plate 16, 16 and each second shape retaining side flat plate portion 17, 17, for example. Each of the bending holes 18 and 18 penetrates the first shape-retaining side flat plate portions 16 and 16 and the second shape-retaining side flat plate portions 17 and 17, and is formed on the front surface 6 </ b> A and the back surface 6 </ b> B of each side flat plate 6 and 6. Opened.

As shown in FIGS. 5 and 9, the folding holes 18 and 18 are formed along the first to fourth hole edge straight lines N1 to N4.
As shown in FIGS. 5 and 9, the first hole edge straight line N1 (lateral hole edge inclined straight line) extends in the lateral direction Y and intersects the fourth bent straight line L4 and the fifth bent straight line L5.
As shown in FIG. 5, the second hole edge straight line N2 is arranged in parallel to the third bent straight line L3 (vertical center line a). The first hole edge straight line N2 extends in the longitudinal direction V from the first hole intersection line Q1 of the first hole edge straight line N1 and the fifth bent straight line L5, and the third bent straight line L3 and the vertical edge of the base plate 5 3 intersects with the first bent straight line L1.
As shown in FIG. 5, the third hole edge straight line N3 is a first bent straight line located between the second hole edge straight line N2 and the second hole intersecting point Q2 of the first bent straight line L1 and the first intersecting point P1. L1.
As shown in FIG. 5, the fourth hole edge straight line N4 is a fourth bent straight line located between the first hole edge straight line N1 and the third hole intersection point Q3 of the fourth bent straight line L4 and the first intersection point P1. L4.

  In each side plate 6, 6, the respective folding holes 18, 18 are arranged along the first and fourth bent straight lines L 1, L 4 (third and fourth hole edge straight lines N 3, N 4). Formed on the shape-side flat plate portions 16 and 16 and the second shape-retaining side flat plate portions 17 and 17.

<Presser sheet 2>
As shown in FIGS. 1, 2, and 4 to 10, the presser sheet 2 (presser film) is laminated on the surface 5 </ b> A of the base plate 5 (the stacked flat plate portion 7 and the bottom flat plate portions 8 and 8). . The presser sheet 2 is formed in, for example, a quadrangle (rectangular shape) that is the same shape as the base plate 5, and is disposed so as to cover all the surfaces 5 </ b> A in the base plate 5.
As a result, the presser sheet 2 is disposed on the surface 7A of the stacked flat plate portion 7 and the surfaces 8A of the bottom flat plate portions 8 and 8, as shown in FIGS.

As shown in FIGS. 1, 2, 4, 7, and 9, the presser sheet 2 has the base plate 5 (the bottom flat plate portions 8, 8) on the sheet longitudinal edge side 2 </ b> A, 2 </ b> A in the lateral direction Y. Are fixed to the vertical edge end sides 3A and 3A.
In the presser sheet 2, the sheet vertical edge end sides 2 </ b> A and 2 </ b> A are fixed to the vertical edge end sides 3 </ b> A and 3 </ b> A of the base plate 5 (the bottom flat plate portions 8 and 8) in the vertical direction V.
As a result, the presser sheet 2 closes the sheet lateral edge ends 2A and 2A in the lateral direction Y and opens the sheet lateral edge ends 2B and 2B in the longitudinal direction V.

The presser sheet 2 is formed of a sheet material (film material) having stretchability (flexibility). For the presser sheet 2, for example, a transparent film made of a polyurethane-based thermoplastic resin is used (film thickness is 10 to 300 μm).
When a transparent film made of a polyurethane-based thermoplastic resin is used as the presser sheet 2, the vertical edge ends 2 </ b> A and 2 </ b> A of the sheet are connected to the vertical edges 3 </ b> A and 3 </ b> A of the base plate 5 by heat sealing (thermocompression bonding). Can be fixed (fixed).

In the packing cushioning material X, the second plate width H2 and the second plate width H3 have the same plate width H2 = H3.
In the cushioning material X for packing, the plate width H5 = H2 + H3 obtained by integrating the second plate width H2 and the third plate width H3 is set to a plate width H5> H1 (wide plate width) larger than the first plate width H1.

  In the cushioning material X for packing, the first acute angle θ1 is set to an angle [θ1 = (1/2) × θ2] that is half of the second acute angle θ2. For example, the second acute angle θ2 = 34 degrees (34 °), the first acute angle θ1 = 17 degrees (17 °), the second acute angle θ2 = 36.9 degrees (36.9 °), and the first The acute angle θ1 = 18.4 degrees (18.4 °).

In the packing material X for packing, the relationship between the third acute angle θ3, the second acute angle θ2, and the first acute angle θ1 is, for example, that the third acute angle θ3 is the same angle as the second acute angle θ2 and the first acute angle θ2. The angle is half of the acute angle θ1 [θ3 = θ2 = (1/2) × θ1].
In the packing material X for packing, the relationship between the fourth acute angle θ1 and the first acute angle θ1 is, for example, that the fourth acute angle θ4 is an angle twice the first acute angle θ1 (θ4 = 2 × θ1). .
In the cushioning material X for packing, if the relationship between the fifth acute angle θ5 and the first acute angle θ1 is, for example, an arbitrary angle θ6, the fifth acute angle θ5 is θ5 = θ6-2 × θ1. For example, if the first acute angle θ1 = 17 degrees (the second acute angle θ2 = 34 degrees) and an arbitrary angle θ6 = 45 degrees (45 °), the fifth acute angle θ5 = 45 degrees−2 × ( 17 degrees) = 11 degrees (11 degrees).

  In the cushioning material X for packing, the acute angle θ (θ1 to θ5) is more than 0 degree and less than 90 degrees (0 ° <θ <90 °).

<Packing of goods>
Next, a procedure for assembling the packing material X and packing an article (product) will be described with reference to FIGS. 1 to 5 and FIGS. 11 to 18.
11 to 18, the same reference numerals as those in FIGS. 1 to 10 denote the same members and the same configuration, and thus detailed description thereof will be omitted.

In FIGS. 1 to 4, the cushioning material X for packing includes the bottom flat plate portions 8 and 8 and the first shape retaining side flat plate portions 16 and 16 of the side flat plates 6 and 6, respectively, and the second bent straight lines L2. , L2 and the fourth bent straight lines L4, L4, the load plate is bent to the surface 7A side.
When the bottom flat plate portions 8 and 8 and the first shape-retaining side flat plate portions 16 and 16 are bent toward the surface 7A side of the loading flat plate portion 7, the presser sheet 2 is loosely arranged in the lateral direction Y.
As a result, the presser sheet 2 is separated from the stacking flat plate portion 7 to open the space between the sheet lateral edge 2B, 2B of the presser sheet 2 and the stacking flat plate portion 7, and the rising side flat plate portion 15 ( Article Z (product) is inserted from the first bent straight line L1) side (see FIG. 11).
At this time, the article Z (product) is disposed between the stacked flat plate portion 7 and the presser sheet 2 and is stacked on the surface 7A of the stacked flat plate portion 7. The presser sheet 2 covers the article Z (product) stacked on the surface 7A of the stacking flat plate portion 7.

13 to 18, the base plate 5 is folded back to the back surface 7B of the loading flat plate portion 7 along the loading flat plate portion 7 and the second bending straight lines L2 and L2, and each of the third bending straight lines L3 and L3. It is composed of a pair of bottom flat plate portions 8 and 8 which are bent along L3 and formed in a mountain shape.
As shown in FIGS. 1 to 3 and FIG. 12, the bottom flat plate portions 8 and 8 are folded back to the back surface 8B of the stacked flat plate portion 7 along the second bent straight lines L2 and L2, respectively. It is bent along the bent straight lines L3 and L3 to form a mountain shape (mountain shape). The back surfaces 8B of the bottom flat plate portions 8 and 8 are opposed to the back surface 7B of the stacked flat plate portion 7 by folding along the second folding straight lines L2 and L2.
As shown in FIGS. 14 to 18, the bottom flat plate portions 8, 8 are connected to the vertical edge ends 3, 3 (lateral edge end surfaces) of the base plate 5 (respective bottom flat plate portions 8, 8). It abuts on the back surface 7B, and the lateral edge edges 3 and 3 of the base plate 5 (the bottom flat plate portions 8 and 8) abut on each other to form a chevron shape.
At this time, if the second plate width H2 and the third plate width H3 are set to the same plate width H2 = H3, and the plate width H5 = H2 + H3 is set to a plate width H5> H1 larger than the first plate width H1, each bottom plate portion 8 and 8, the vertical edge ends 3 and 3 (vertical edge end surfaces) of the base plate 5 are brought into contact with the back surface 7B of the loading flat plate portion 7 along the vertical center line b, and the vertical edge ends 3 of the base plate 5 are provided. , 3 are brought into contact with each other at the longitudinal center line a to form a mountain shape (mountain shape).
Thereby, each bottom flat plate part 8 and 8 continues in the horizontal direction Y, and forms two same-shaped mountain shapes.
Further, in each of the bottom flat plate portions 8 and 8 formed in the same chevron shape, the third bent straight lines L3 and L3 serving as the chevron apex portions 19 and 19 are in the vertical direction V as shown in FIGS. The flat plate portion 7 is disposed on the same plane W that is separated from the back surface 7B of the stacking flat plate portion 7 by a distance R (bottom raising distance R) and parallel to the back surface 7B of the stack flat plate portion 7. Note that, as shown in FIG. 17, the bottom raising distance R is a vertical line LX orthogonal to the back surface 7 </ b> B of the stacked flat plate portion 7 and the third bent of each bottom flat plate portion 8, 8 formed in a mountain shape (mountain shape). When the intersection point PX of the straight lines L3 and L3 (mountain apex portions 19 and 19) and the intersection point PY of the perpendicular line LX and the back surface 7B of the loading flat plate portion 7 are assumed, it is the distance between the intersection points PX and PY.
Furthermore, the bottom flat plate portions 8 and 8 formed in the same mountain shape (the same shape) are arranged across the first bent straight lines L1 and L1 of the stacking flat plate portion 7 in the vertical direction V.
The bottom flat plate portions 8 and 8 and the loading flat plate portion 7 form two hollow triangular prisms extending in the vertical direction V with the cross section in the horizontal direction Y being an isosceles triangle as shown in FIGS. To do.

As shown in FIGS. 13 and 15 to 17, the presser sheet 2 is folded back at the bottom flat plate portions 8 and 8 along the second bent straight lines L2 and L2, and the third bent straight lines L3 and L3. The article Z (product) is fixed to the stacking flat plate portion 7 with tension by bending the bottom flat plate portions 8 and 8 along the line.
At this time, the presser sheet 2 is folded along the second bent straight lines L2 and L2 together with the bottom plate portions 8 and 8, and is bent along the third bent straight lines L3 and L3.
As a result, the presser sheet 2 is pulled along the stacked flat plate portion 7 and the bottom flat plate portions 8 and 8 in the lateral direction Y, and the article Z (product) is fixed to the stacked flat plate portion 7.

  In FIGS. 1 to 4 and FIGS. 13 to 18, the side flat plates 6 and 6 are bent along the first bent straight lines L1 and L1 to the surface 7A side of the stacked flat plate portion 7 to be loaded flat plate portions. 7 and the pair of first folded back portions 15B of the rising side flat plate portion 15 along the first bent straight lines L1 and L1 and the fourth bent straight lines L4 and L4. Folded back to the back surface 16B of each first shape-retaining side flat plate portion 16, 16 along the first shape-retaining flat plate portions 16, 16, and the first bent straight lines L1, L1 and the fifth bent straight lines L5, L5. A pair of second shape-retaining side flat plate portions 17, 17.

  In each side flat plate 6, 6, the rising side flat plate portion 15 is loaded along each first bent straight line L 1, L 1 located between each first intersection point P 1, P 1, as shown in FIGS. 13 to 17. It is bent to the surface 7A side of the flat plate portion 7 and is erected (standing) on the stacked flat plate portion 7. The rising side flat plates 15 and 15 of the side flat plates 6 and 6 are erected (erected) perpendicular to the stacked flat plate portion 7, for example.

In each of the side flat plates 6, 6, the first shape-retaining side flat plate portions 16, 16 are arranged between the first intersection points P1, P1 and the second intersection points P2, P2 (each (Between the second bent straight lines L2, L2 and the third bent straight lines L3, L3), the first bent straight lines L1, L1, the fourth bent straight lines L4, L4, and the fifth bent lines. Folded along the straight lines L5 and L5 to the back surface 15B of each rising-side flat plate portion 15.
At this time, the first shape-retaining side flat plate portions 16, 16 are juxtaposed with the rising side flat plate portions 15, 15 in the vertical direction V, and the stacked flat plate portion 7 is formed by the rising side flat plate portion 15. Is raised (established).
Further, the back surfaces 16B of the first shape-retaining side flat plate portions 16 and 16 are arranged to face the back surface 15B of the rising-up side flat plate portion 15 by folding the first shape-retaining side flat plate portions 16 and 16. Is done.
Further, since the respective bending holes 18 and 18 are formed along the first bent straight lines L1 and L1 and the fourth bent straight lines L4 and L4, the first shape-retaining side flat plate portions 16 and 16 are formed. Can be easily and reliably folded back to the back surface 15B of each rising side flat plate portion 15, 15.

In each of the side flat plates 6 and 6, each of the second shape-retaining side flat plate portions 17 and 17 is provided between each of the second intersection points P2 and P2 and each of the third intersection points P3 and P3 as shown in FIGS. Along each of the first bent straight lines L1, L1 and each of the fifth bent straight lines L5, L5 located between the third bent straight lines L3, L3 and the vertical edge ends 3, 3 of the base plate 5. The first shape-retaining side flat plate portions 16 and 16 are folded back on the back surface 16B.
At this time, the second shape-retaining side flat plate portions 17 and 17 are positioned on the back surface 7B side of the stacking flat plate portion 7 and turned up in the vertical direction V and turned up. The first shape-retaining side flat plate portions 16 and 16 are arranged in parallel. Each of the second shape-retaining side flat plate portions 17 and 17 is raised with respect to the loading flat plate portion 7 by each of the raised side flat plate portions 15 and the folded first shape-retaining side flat plate portions 16 and 16 ( Standing).
Further, the back surfaces 17B of the second shape-retaining side flat plate portions 17 and 17 are turned back to the back surfaces 16B of the first shape-retaining side flat plate portions 16 and 16 by folding the second shape-retaining side flat plate portions 17 and 17, respectively. It is arrange | positioned facing.
Furthermore, when the first acute angle θ1 is half of the second acute angle θ2, the first shape-retaining side flat plate portions 16 and 16 folded back on the back surface 15B of each rising side flat plate portion 15 and the first The boundary lines of the second shape-retaining side flat plate portions 17 and 17 folded back on the back surface 16B of the shape-retaining flat plate portions 16 and 16 and the fifth bent straight lines L5 and L5 that become the folded portions 20 and 20 are shown in FIG. 14 thru | or FIG. 16, it arrange | positions in parallel with respect to the back surface 7B of the loading flat plate part 7, and each 3rd bending straight line L3, L3 (each chevron apex part 19, 19) of each bottom flat plate part 8,8. Are arranged on the same plane W on which are arranged.
Accordingly, the third bent straight lines L3 and L3 of the bottom flat plate portions 8 and 8 formed in a chevron shape, the first shape retaining side flat plate portions 16 and 16, and the second shape retaining side flat plate portions 17 and 17 are formed. The fifth bent straight lines L5 and L5, which are the folded portions 20 and 20 (boundary lines), are arranged on the same plane W parallel to the back surface 7B of the loading flat plate portion 7 (see FIGS. 14 to 16). .

  In each side flat plate 6, 6, each first shape retaining side flat plate portion 16, 16 is folded back to the back surface 15 </ b> B of the raised side flat plate portion 15, and each second shape retaining side flat plate portion 17, 17 is folded back. Further, when folded back on the back surface 16B of each first shape-retaining side flat plate portion 16, 16, each first shape-retaining side flat plate portion 16, 16 and each second shape-retaining side flat plate portion 17, 17 are on the second shape-retaining side. The crest shape of each bottom flat plate part 8 and 8 connected to the flat plate part 17 and 17 is hold | maintained.

In each of the side flat plates 6 and 6, each first shape-retaining side flat plate portion 16 and 16 is folded together with each bottom flat plate portion 8 and 8 along each second curved straight line L2 and L2, as shown in FIG. It is folded back on the back surface 15B of each rising-side flat plate portion 15 along each fourth bent straight line L4, L4. In each side flat plate 6, 6, each first shape-retaining side flat plate portion 16, 16 is bent together with each bottom flat plate portion 8, 8 along the third bent straight line L 3, L 3, and each first bent straight line. It bends along L1, L1 (each 1st bending straight line L1 located between each 2nd and each 3rd bending straight line L2, L3). Further, in each of the side flat plates 6 and 6, the second shape-retaining side flat plate portions 17 and 17 are bent together with the bottom flat plate portions 8 and 8 along the third bent straight lines L3 and L3. The bent straight lines L5 and L5 and the first bent straight lines L1 and L1 (the first bent straight lines located between the third bent straight lines L3 and L3 and the vertical edge ends 3 and 3 of the base plate 5). L1 and L1) are folded back to the back surface 16B of each first shape-retaining side flat plate portion 16,16.
The folded first flat plate portions 16 and 17 and the rising side flat plate portions 15 of the side flat plates 6 and 6 are stacked along the first bent straight lines L1 and L1. 7 is bent to the surface 7A side and is erected (erected) on the loading flat plate portion 7.
At this time, the respective side flat plates 6 and 6 (the rising side flat plate portion 15, the first shape retaining side flat plate portion 16, and the second shape retaining side flat plate portions 17 and 17) which are raised by a human hand are gripped. During this time, the ridges (mountain shapes) of the bottom flat plate portions 8 and 8 are held, and the ridge apex portions 19 and 19 of the third bent straight lines L3 and L3 of the bottom flat plate portions 8 and 8, respectively, And the folding | returning parts 20 and 20 of each 5th bending straight line L5 and L5 used as the boundary line of each 2nd shape-retaining side flat plate part 16 and 17 are arrange | positioned on the same plane W.

In each of the side flat plates 6 and 6, the vertical edge ends 9 and 9 (vertical edge end surfaces) are arranged with respect to the vertical edge ends 3 and 3 (vertical edge end surfaces) of the base plate 5 as shown in FIG. They are arranged at three acute angles θ3. As a result, even if the first shape-retaining side flat plate portions 16 and 16 are folded back to the back surface 15B of the upright side flat plate portion 15, the first shape-retaining side flat plate portions 16 and 16 are as shown in FIG. In addition, they are arranged side by side on the rising side flat plate portion 15 without overlapping each other.
The third acute angle θ3 is an angle at which the first shape-retaining side flat plate portions 16, 16 do not overlap each other when the first shape-retaining side flat plate portions 16, 16 of the side flat plates 6, 6 are folded back. Select (set). For example, when the third acute angle θ3 is the same angle as the second acute angle θ2 (θ3 = θ2), each first shape-retaining flat plate portion 16 folded back on the back surface 15B of each rising-side flat plate portion 15, 15 is used. , 16 are arranged so that the vertical edge ends 9, 9 of the side plates 6, 6 are parallel to each other without overlapping each other, as shown in FIG.

In each of the side plates 6 and 6, the lateral edge 10 (lateral edge surface) is constituted by the first inclined lateral edge 10A, 10A, the parallel lateral edge 10B, and the second inclined lateral edge 10C, 10C. Thus, even if the first shape-retaining side flat plate portions 16 and 16 are folded back to the back surface 15B of the raised side flat plate portion 15, the first inclined lateral edge ends 10A and 10A are shown in FIGS. Thus, it arrange | positions from the parallel horizontal edge end 10B of the standing-up side flat plate part 15 to the loading flat plate part 7 side (each bottom flat plate part 8 side).
At this time, the first inclined lateral edge ends 10A and 10A are arranged in parallel to the parallel lateral edge 10B of each rising side flat plate portion 15 as shown in FIG.
The fourth and fifth acute angles θ4, θ5 are the first angles of the first shape retaining side flat plate portions 16, 16 when the first shape retaining side flat plate portions 16, 16 of the side flat plates 6, 6 are folded. An angle is selected (set) such that the inclined horizontal edge ends 10A and 10A are arranged closer to the stacking flat plate portion 7 than the parallel horizontal edge end 10B of the rising side flat plate portion 15 where the rising side flat plate portions 15 are erected. For example, the fourth acute angle θ4 is set to an angle twice the first acute angle θ1 (θ4 = 2 × θ1), and the fifth acute angle θ5 is θ5 = θ6-2 × θ1 [θ6: arbitrary angle, θ1: 1st acute angle], in each first shape-retaining side flat plate portion 16, 16 folded back on the back surface 15B of each rising side flat plate portion 15, 15, each first inclined lateral edge 10A, 10A is As shown in FIG. 14, each of the rising side flat plate portions 15 and 15 is positioned closer to the loading flat plate portion 7 than the parallel horizontal edge end 10B (between the parallel horizontal edge end 10B and the surface 7A of the loading flat plate portion 7). It arrange | positions in parallel with the parallel horizontal edge end 10B of the starting side flat plate part 15 and 15. FIG.

In the packing material X for packing, the relationship between the first acute angle θ1, the second acute angle θ2, and the first to third plate widths L1, L2, and L3 is, as shown in FIGS. 2 and 17, the first acute angle θ1. Is the half angle [θ1 = (1/2) × θ2] of the second acute angle θ2, the second plate width H2 and the third plate width H are the same plate width H2 = H3, and the plate width H5 = H2 + H3 is the first. Assuming that the plate width H5> H1 and the bottom raising distance R are larger than the plate width H1, the following is obtained.
First, in each bottom plate part 8 and 8 formed in the mountain shape (mountain shape), each 1st bending straight line located between each 2nd bending straight line L2, L2 and each 3rd bending straight line L3, L3. The angle formed between L1 and L1 and the loading flat plate portion 7 (back surface 7B) is the second acute angle θ2 (see FIG. 17).
Accordingly, the expressions (1) and (2) are established among the second acute angle θ1, the first plate width H1, the second plate width H2, and the bottom raising distance R.

In the expressions (1) and (2), when the bottom raising distance R and the first plate width H1 are set to arbitrary numerical values, the second acute angle θ2 and the second plate width H3 (third plate width H3 = H2). Can be determined.
If the second acute angle θ2 is determined, the first acute angle θ1 [θ1 = (1/2) × θ1] can also be determined.
The first acute angle θ1, the second acute angle θ2, the second plate width H2, and the third plate width H3 depend on the first plate width H1 and the bottom raising distance R, and the first plate width H1 and the bottom raising distance R are arbitrarily set. If it is set to a numerical value, it can be determined from equations (1) and (2).

When the packaging cushioning material X (hereinafter referred to as “packaging cushioning material X in which the article Z (product) is packed”) assembled by packaging the article Z (product) is transported, it is shown in FIGS. 19 to 21. As shown, it is housed in a rectangular parallelepiped packing box B.
As shown in FIGS. 19 to 21, the packing cushioning material X in which the article Z (product) is packed is stored in the packing box B from the bottom flat plate portions 8 and 8 formed in a mountain shape, and is formed in a mountain shape. Further, the third bent straight lines L3 and L3 (each peak-shaped apex portions 19 and 19) of the bottom flat plate portions 8 and 8 are brought into contact with the bottom flat plate 51 of the packaging box B. Further, the first bent shape flat plate portions 16 and 16 that have been turned back and the fifth bent straight lines L5 and L5 that serve as the boundary lines of the second bent shape holding side flat plate portions 17 and 17 (each folded portion). 20, 20) is brought into contact with the bottom flat plate 51 of the packing box B, and the packing cushioning material X packed with the article Z (product) is placed on the bottom flat plate 51 of the packing box B and stored.

Further, as shown in FIGS. 19 to 21, the packing cushioning material X in which the article Z (product) is packed has the folded first first shape-side flat plate portions 16 and 16, the side flat plate 52 of the packing box B, 52 abuts the packaging box B.
Then, the lid flat plate 53 is closed in the packing box B, and the lid flat plate 53 is brought into contact with the raised flat plate portions 15 and 15 (horizontal lateral edge 10B) and transported.
At this time, since the packing cushioning material X in which the article Z (product) is packed, the first shape-retaining side flat plate portions 16 and 16 are brought into contact with the respective side flat plates 52 and 52 of the packaging box B. The first shape-retaining side flat plate portions 16 and 16 and the second shape-retaining side flat plate portions 17 and 17 hold the mountain shape of the bottom flat plate portions 8 and 8.

Thus, the packing cushioning material X is continuous in the horizontal direction Y, and the vertical edge ends 3 and 3 of the base plate 5 (the bottom flat plate portions 8 and 8) are brought into contact with the back surface 7B of the loading flat plate portion 7, And each of the vertical edge ends 3 and 3 is in contact with each other, and each of the bottom plate portions 8 and 8 of a mountain shape (mountain shape) (each mountain-shaped apex portion 19 and 19 of each third bent straight line L3 and L3), and each first The article Z (product) loaded on the surface 7A of the loaded flat plate portion 7 is supported by the folded portions 20 and 20 of the fifth bent straight lines L5 and L5 that are the boundaries between the second shape-retaining side flat plate portions 16 and 17. Therefore, the loading flat plate portion 7 does not sink to the bottom flat plate portions 8 and 8 side due to the weight of the article Z (product).
As a result, the packing material X packing the product Z (product) is stored in the packaging box B and transported (carried) as in the case described with reference to FIGS. ), The stacked flat plate portion 7 does not come into contact with the bottom flat plate 51 of the packaging box B, so that the buffer function is excellent.

In the packing material X for packing, the first to fifth bent straight lines L1 to L5 may be perforated straight lines.
The packing cushioning material X may have a configuration in which the folding hole 18 is not formed.

In the cushioning material X for packing, regarding the relationship between the first acute angle θ1 and the second acute angle θ2, θ1 = (½) × θ2 [the first acute angle θ1 is an angle half of the second acute angle θ2] However, the present invention is not limited to this.
For example, as the first acute angle θ1 = (1 / n) × θ2 [where n is an arbitrary numerical value equal to or larger than 2], the third bent straight lines L3 and L3 of the bottom flat plate portions 8 and 8 formed in a mountain shape are used. (Each chevron apex portion 19, 19) and each fifth bent straight line L 5, L 5 (each folded portion 20, 20) serving as a boundary between each first and second shape-retaining side flat plate portion 16, 17 The structure arrange | positioned on the same flat plate W parallel to the back surface 7B of the flat plate part 7 is also employable.

  The present invention is most suitable for packing (carrying) goods (goods).

X Packing cushioning material 1 Basic flat plate 2 Presser sheet 3 Vertical edge of base plate (vertical edge)
5 Base plate 6 Side plate 7 Loading plate 8 Bottom plate 9 Vertical edge of the side plate (vertical edge)
10 Horizontal edge of side plate (horizontal edge)
15 Standing side flat plate portion 16 First shape retaining side flat plate portion 17 Second shape retaining side flat plate portion L1 First bent straight line L2 Second bent straight line L3 Third bent straight line L4 Fourth bent straight line (vertical bent) Inclined straight line)
L5 Fifth bent straight line (horizontal bent inclined straight line)
P1 1st intersection P2 2nd intersection

Claims (1)

A cushioning material for packing provided with a basic flat plate and a presser sheet,
The basic flat plate is
A vertical centerline in the vertical direction;
A lateral centerline in a lateral direction orthogonal to the longitudinal centerline;
A pair of first bent straight lines arranged in parallel on both sides of the lateral center line;
A pair of vertical edge ends disposed in parallel on both sides of the vertical center line and orthogonal to the first bent straight lines,
A square base plate defined by each first bent straight line and each vertical edge,
A pair of side flat plates connected to the base plate along each first bent straight line, and
The base plate is
A pair of second bent straight lines disposed on both sides of the vertical center line in parallel across the first plate width and orthogonal to the first bent straight lines;
The second bent straight line is disposed between the second bent straight lines and the vertical edge ends of the base plate, the second bent straight lines are spaced apart from each other by a second plate width, and the vertical edge ends of the base plate are changed to the first vertical edge ends. A pair of third bent straight lines arranged in parallel across three plate widths and orthogonal to the first bent straight lines,
A rectangular loading flat plate section defined by each first bent straight line and each second bent straight line;
And a pair of bottom flat plate portions that are folded back along the second bent straight lines on the back surface of the loading flat plate portion and bent along the third bent straight lines to form a mountain shape. ,
Each side plate is
A pair of longitudinal edge ends in the lateral direction;
The longitudinal edge of the longitudinal direction;
The first bent straight line is disposed at a first acute angle with respect to the second bent straight line on the longitudinal center line side, and the first flat line and the second bent straight line from the first intersection point of the side flat plate. A pair of fourth bent straight lines extending to the respective lateral edge ends;
A second acute angle is disposed with respect to each of the third bent straight lines and each of the first bent straight lines positioned between the vertical edge ends of the base plate, and each of the first bent straight lines and the A pair of fifth bent straight lines extending from the second intersection of each third bent straight line to each vertical edge of the side plate,
A rising-side flat plate portion that is bent along the first bent straight line to the front surface side of the loading flat plate portion and stands on the loading flat plate portion;
A pair of first shape-retaining side flat plate portions folded back on the back surface of the rising side flat plate portion along the first bent straight lines and the fourth bent straight lines;
A pair of second shape-retaining side flat plate portions that are folded back on the back surface of each first shape-retaining side flat plate portion along each first bent straight line and each fifth bent straight line. Is
Laminated on the surface of the base plate, each sheet vertical edge end side in the lateral direction is fixed to each vertical edge end side of the base plate,
Covering the article loaded on the surface of the loading flat plate portion, by folding back each bottom flat plate portion along each second folding straight line, tensioned to fix the article to the loading flat plate portion,
Each bottom plate is
Each vertical edge of the base plate is in contact with the back surface of the loading flat plate portion, and each vertical edge of the base plate is in contact with each other, and is formed in a mountain shape,
The third bent straight lines of the bottom flat plate portions formed in a chevron and the fifth bent straight lines that serve as boundary lines between the first and second shape-retaining side flat plate portions,
The cushioning material for packing characterized by being arrange | positioned on the same plane parallel to the back surface of the said loading flat plate part.

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