JP2005313926A - Cushioning packaging material and packaging material using cushioning packaging material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cushioning packaging material which can sufficiently ensures an adhesive force of a cushioning film and which can be manufactured without adding a secondary working process during manufacturing. <P>SOLUTION: In the cushioning packaging material, to a window hole of a frame body in a blank equipped with supporting pieces extending outer side edges of the frame body and the polygonal frame body with a window hole, after the cushioning film is stretched over to a position protruded from the frame body, the respective supporting pieces are raised and folded to the frame body to form them into a frame-like shape, at a corner formed by adjoining supporting pieces of the blank, a reinforcing piece made by prolonging the side edge of one supporting piece so as to bury the corner is provided along the side edge of the other supporting piece. A cut and removed part spreading at a specified angle by using a corner apex position as a starting point in the blank frame body is formed so that at least the reinforcing piece or the other supporting piece is included. A part protruded from the frame body of the cushioning film is stuck to the reinforcing piece and the other supporting piece under a condition aride the cut and removed part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a buffer packaging material and a packaging material using the buffer packaging material.

  As is well known, as a packaging material for protecting an article to be packaged such as a cracked object, an electronic device or a precision device from an impact generated during transportation, it is covered by a pair of buffer packaging materials in which a buffer film having flexibility and stretchability is stretched. A large number of packaging materials have been developed that hold packaging articles in a sandwiched state.

  For example, in Patent Document 1 described later, two buffer inner boxes are made to face each other so as to approach each other, and stored in the outer box without a gap in the outer peripheral direction, and between a pair of facing synthetic resin sheets (buffer films). In the packaging structure of the article formed by holding and holding the article, the buffer inner box is composed of one square or rectangular cardboard or paperboard when unfolded, and each side of the outer periphery of the base surface portion of the inner box The outer side piece portion formed along the outer side piece portion extends in the extending direction from both ends of the first folding line, which is the base end of the pair of opposed outer side piece portions, and is cut into the adjacent outer side piece portion. Auxiliary side pieces separated by wires are connected in series, and the auxiliary side pieces are folded orthogonally to the outer side pieces connected to the auxiliary side pieces when the inner box is assembled. The auxiliary side piece is bent while the adjacent outer side piece and auxiliary side piece overlap each other. It is restrained by the outer side piece by means and maintains the posture at the time of bending, and a synthetic resin sheet is adhered to the top surface part surrounding the window hole on the base surface part to cover the window hole A packaging structure is disclosed.

  However, in the buffer inner box used in the packaging structure described in Patent Document 1, the width of the top surface portion of the base surface portion is made as small as possible so that a larger packaged article can be held. In order to secure a wide range, the adhesive force of the synthetic resin sheet adhered to the top surface portion of the base surface portion is reduced, and the synthetic resin sheet is peeled off from the top surface portion due to the tension generated when the packaged article is sandwiched There was a point.

In addition, in order to solve the above-mentioned problem, there is a method of securing the adhesive strength of the synthetic resin sheet by covering the synthetic resin sheet so as to cover the position protruding from the base surface portion. The part that protrudes from the base surface part is stretched between the outer side piece and the auxiliary side piece with the cut line straddled, and the auxiliary side piece is orthogonal to the outer side piece during assembly. The plastic sheet must be cut along the score line, and it is necessary to add a secondary work process at the time of manufacturing, resulting in a decrease in manufacturing efficiency. Furthermore, there is a problem that the synthetic resin sheet is easily torn from the cut portion.
JP 2000-264368 A (2nd page, FIG. 1)

  Therefore, the present invention aims to realize a buffer packaging material that can sufficiently secure the adhesive strength of the buffer film and can be manufactured without adding a secondary work process at the time of manufacturing, and is realized as a technical problem. As a result of repeated research and experimentation, it was found that a blank having a polygonal frame having window holes and a support piece formed by extending each outer edge of the frame was buffered against the window holes of the frame. In the shock-absorbing packaging material formed into a frame shape by bending the film so as to raise each of the support pieces after covering the film so as to cover the position protruding from the frame, the support pieces adjacent to the blank A reinforcing piece formed by extending the side edge of one support piece so as to fill the corner is formed along the side edge of the other support piece so as to fill the corner, and at least the reinforcing piece or the other support To include a piece A cut-out portion that extends at a predetermined angle starting from the corner tip position in the blank frame body is formed, and the portion that protrudes from the frame body of the buffer film straddles the cut-out portion and the reinforcing piece and the other piece When adhering to the support piece, it is possible to obtain sufficient knowledge that the adhesive strength of the buffer film can be sufficiently secured, and that it can be manufactured without adding a secondary work process at the time of manufacturing, Achieved.

  The technical problem can be solved by the present invention as follows.

  That is, the cushioning packaging material according to the present invention is provided for a window hole of the frame body in a blank having a polygonal frame body having a window hole and a support piece formed by extending each outer edge of the frame body. In the shock-absorbing wrapping material formed into a frame shape by folding the shock-absorbing film so as to cover the position where it protrudes from the frame, the support pieces are bent to form the frame, and adjacent to the blank. At the corner formed by the support piece, a reinforcing piece formed by extending the side edge of one support piece is provided along the side edge of the other support piece so as to fill the corner. A cut-out portion that is widened at a predetermined angle starting from the corner tip position of the blank frame so as to include the piece or the other support piece is formed, and the portion protruding from the frame of the buffer film is the cut-out portion State straddling In which is bonded to the said reinforcing piece and the other support piece.

  Moreover, this invention is formed in the said buffer packaging material so that a cut part may exist in a reinforcement piece, and it may open toward the other support piece.

  Moreover, this invention is formed in the said buffer packaging material so that a cutting part may exist in the other support piece, and it may open toward a reinforcement piece.

  Further, according to the present invention, in the cushioning packaging material, the cut portion extends over the reinforcing piece and the other supporting piece, the cut portion on the reinforcing piece side is in the reinforcing piece, and the other supporting piece The cut-out portion on the other support piece side is in the other support piece and is formed so as to open toward the reinforcing piece.

  Further, the present invention provides the buffer packaging material according to any one of the above, wherein the predetermined angle has a half angle of an angle between the side edge of at least one support piece and the side edge of the other support piece. It is what.

  Further, the present invention provides the cushioning packaging material according to any one of the above, wherein the portion protruding from the frame of the cushioning film is bonded to the reinforcing piece and the other supporting piece in a state where the part is not completely covered with the cut portion. It is what has been.

  Furthermore, the packaging material according to the present invention includes a pair of the cushioning packaging materials as described above, the cushioning films of the pair of cushioning packaging materials facing each other, the packaged article sandwiched between the facing cushioning films, The pair of shock-absorbing wrapping materials are stored in the outer frame member in a state where the distance between the pair of shock-absorbing wrapping materials facing each other in a state where the packaging article is sandwiched is maintained.

  In carrying out the present invention, in the cushioning packaging material, a columnar shape can be formed by folding the frame body so as to raise a support piece.

  According to the present invention, since the cut-out portion that spreads at a predetermined angle starting from the corner tip position in the blank frame so as to include at least the reinforcing piece or the other support piece, the buffer film is attached to the blank on the frame. Even when it is stretched so as to cover the protruding position, the reinforcing piece and the other supporting piece are connected to each other by a buffer film that straddles the cut portion, and the reinforcing piece and the other supporting piece are connected. Since the degree of freedom in the mutual operation between the pieces arises, the assembly becomes possible, and the adhesive force of the buffer film can be sufficiently secured. Furthermore, since a cut part can be formed simultaneously when forming a blank, it is not necessary to add a secondary work process for forming the cut part, and the manufacturing efficiency can be improved. Moreover, since it is not necessary to cut | disconnect a buffer film, a buffer film does not become easy to tear. And since the front-end | tip part of the buffer film stretched over the blank will be in the state pinched | interposed between the reinforcement piece and the other support piece, it can prevent that a buffer film peels from a blank.

  Therefore, it can be said that the industrial applicability of the present invention is very high.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.

  FIG. 1 is a perspective view showing the cushioning packaging material according to the present embodiment, FIG. 2 is a development view showing a state when the cushioning packaging material shown in FIG. 1 is deployed, and FIG. 3 is shown in FIG. FIG. 4 is a partially enlarged plan view showing a corner portion of the cushioning packaging material, FIG. 4 is a cross-sectional view showing the packaging material using the cushioning packaging material shown in FIG. 1, and FIG. It is a partial expanded view which shows the shape of. In these drawings, reference numeral 1 denotes a shock-absorbing packaging material in which a buffer film 3 is stretched over a blank 2 formed by punching cardboard or cardboard and then a predetermined portion is bent to form a frame shape.

  As shown in FIG. 2, the blank 2 includes a rectangular frame 5 having a window hole 4, first support pieces 6, 6 formed by extending one opposing outer edge of the frame 5, a frame First support so as to fill a corner formed by second support pieces 7, 7 extending the other opposing outer edge of body 5, and adjacent first support piece 6 and second support piece 7. It consists of a reinforcing piece 8 formed by extending the side edge of the piece 6 (one support piece) along the side edge of the second support piece 7 (the other support piece).

  A cutout 9 is formed in the reinforcing piece 8, and the cutout 9 extends at 45 degrees in the reinforcing piece 8 starting from the corner tip position 10 of the frame 5. It is in the shape of a triangle that opens toward the second support piece 7 in a state in which is left.

  The buffer film 3 is formed in a rectangular shape that is slightly larger than the frame body 5, and can cover the position protruding from the frame body 5 when it is stretched over the blank 2. And the edge part 11 which protruded from the frame 5 of the buffer film 2 stretched so as to cover the window hole 4 of the blank 2 was bonded to the first support piece 6 and straddled the cut part 9. In this state, the reinforcing piece 8 and the second support piece 7 are bonded. In addition, the edge part 11 of the buffer film 2 is stretched over in the state which left a part, without covering the cut part 9 completely.

  When assembling the developed cushioning packaging material shown in FIG. 2, the surface of the blank 2 on which the cushioning film 3 is not stretched is used as the surface, and first, the first support piece 6 is perpendicular to the frame 5. Bend to the side. Next, the reinforcing piece 8 is bent inward so as to be perpendicular to the first support piece 6, and the second support piece 7 is bent to the front side so as to be perpendicular to the frame body 5, The surface side of the second support piece 7 is faced. At this time, as shown in FIG. 3, the portion 3 a that covers the cut portion 9 of the buffer film 3 is folded so as to overlap the portion 3 b that is bonded to the reinforcing piece 8 of the buffer film 3. It is stored between the second support piece 7.

  Next, as shown in FIG. 4, when packaging the article to be packaged 13 with the packaging material 12 using the cushioning packaging material 1 according to the present embodiment, the cushioning film 3 of the pair of cushioning packaging materials 1, 1. A state in which the packaged article 13 is sandwiched between the facing cushioning films 3 with the surface over which the package is stretched facing, and the gap between the pair of cushioning packaging materials 1 and 1 sandwiching the packaged article 13 is maintained The pair of cushioning packaging materials 1 and 1 are accommodated in the outer frame member 14.

  If the outer frame member 14 is of a size that can accommodate the pair of shock-absorbing packaging materials 1, 1 while holding the gap between the pair of shock-absorbing packaging materials 1, 1 holding the article 13 to be packaged, It may be box-shaped or cylindrical.

  According to the present embodiment, since the cut portion is formed in the reinforcing piece with the tip portion of the reinforcing piece remaining, a part of the reinforcing piece (tip portion) is second supported when assembled. The frame becomes the same width as the piece and can support the frame together with the second support piece, and the strength of the cushioning packaging material is improved.

  It should be noted that the cut portion in the present embodiment is sandwiched between the reinforcing piece by a predetermined angle, i.e., at least the side edge of the first support piece and the side edge of the second support piece, starting from the corner tip position of the frame. It is only necessary to spread at an angle having a half angle of the angle and to open toward the second support piece. For example, as shown in FIG. As a point, it may be a triangular cutout 9 that extends in the reinforcing piece 8 at 45 degrees and opens in a dogleg shape toward the second support piece 7 with the tip edge of the reinforcing piece 8 left. . Further, the cut portion may be formed in a shape other than a triangle as long as the above requirements are satisfied.

Embodiment 2. FIG.

  The present embodiment is a modified example of the cushioning packaging material according to the first embodiment, FIG. 6 is a perspective view showing the cushioning packaging material according to the present embodiment, and FIG. 7 is the cushioning packaging shown in FIG. FIG. 8 is a developed view showing a state when the material is developed, FIG. 8 is a partially enlarged plan view showing a corner portion of the cushioning packaging material shown in FIG. 6, and FIG. 9 is another shape of the cut portion in the present embodiment. FIG. In these drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts.

  As shown in FIG. 7, the buffer packaging material according to the present embodiment is the same as that of the first embodiment except that the cutout portion 9 is formed on the second support piece 7 (the other support piece) of the blank 2. It is formed in the same manner as the buffer packaging material. The excision part 9 is spread at 45 degrees in the second support piece 7 starting from the corner tip position 10 of the frame 5, and remains on the reinforcing piece 8 while leaving the tip part of the second support piece 7. It is in the shape of a triangle that is open toward it.

  When assembling the developed cushioning packaging material shown in FIG. 7, the surface of the blank 2 on which the cushioning film 3 is not stretched is used as the surface, and first, the first support piece 6 is perpendicular to the frame 5. Bend to the side. Next, the reinforcing piece 8 is bent inward so as to be perpendicular to the first support piece 6, and the second support piece 7 is bent to the front side so as to be perpendicular to the frame body 5, The surface side of the second support piece 7 is faced. At this time, as shown in FIG. 8, the portion 3 a straddling the cut portion 9 of the buffer film 3 wraps around the surface side of the second support piece 7 and overlaps the portion 3 b bonded to the reinforcing piece 8 of the buffer film 3. It is folded and stored between the second support piece 7 and the reinforcing piece 8.

  According to the present embodiment, since the cutout portion is formed in the second support piece with the tip portion of the second support piece remaining, when assembled, the entire second support piece is put together with the reinforcing piece. The frame body can be supported by the tip edge, and the strength of the cushioning packaging material is improved.

  In the present embodiment, the excision part has a predetermined angle with respect to the second support piece starting from the corner tip position of the frame, that is, at least the side edge of the first support piece (one support piece) and the second support piece. It spreads at an angle having a half angle of the angle between the side edges of the piece (the other support piece), and only needs to open toward the reinforcing piece, for example, as shown in FIG. Starting from the corner tip position 10 of the frame 5, the second support piece 7 spreads out at 45 degrees and opened in a dogleg shape toward the reinforcing piece 8 with the tip edge of the second support piece 7 left. The cut-out part 9 having a triangular shape may be used. The cut portion may have a shape other than a triangle as long as it satisfies the above requirements.

Embodiment 3 FIG.

  This embodiment is a modified example of the cushioning packaging material according to the first embodiment, FIG. 10 is a development view showing a state when the cushioning packaging material according to the present embodiment is unfolded, and FIG. It is a partial expanded view which shows the other shape of the cut part in the form of. In these drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts.

  As shown in FIG. 10, the cushioning packaging material according to the present embodiment has a cut portion 9 formed so as to straddle the reinforcing piece 8 of the blank 2 and the second support piece 7 (the other support piece). The outside is formed in the same manner as the buffer packaging material according to the first embodiment. The cut portion 9 extends at 45 degrees so as to straddle the reinforcing piece 8 and the second support piece 7 with the corner tip position 10 of the frame 5 as a starting point, and the cut portion 9a on the reinforcing piece 8 side. Is formed in a triangular shape opening toward the second support piece 7 while being positioned in the reinforcing piece 8, and the cut-out portion 9 b on the second support piece 7 side is located in the second support piece 7. In this state, it has a triangular shape opening toward the reinforcing piece 8.

  According to the present embodiment, the cut portion on the reinforcing piece side is formed in the reinforcing piece, and the cut portion on the second support piece side is formed in the second support piece. In addition, a part of the reinforcing piece has the same width as the second support piece and can support the frame body, and the second support piece can support the frame body by the entire front end edge. Strength is improved.

  The excision part in the present embodiment has a predetermined angle so as to straddle the reinforcing piece and the second support piece starting from the corner tip position of the frame, that is, at least the first support piece (one support piece). The angle between the side edge and the side edge of the second support piece (the other support piece) is half the angle between the side edge and the cut portion on the reinforcing piece side and the cut portion on the second support piece side; 11, for example, as shown in FIG. 11, at 45 degrees so as to straddle the reinforcing piece 8 and the second support piece 7 starting from the corner tip position 10 of the frame 5. The cut portion 9 may be widened and opened in a dogleg shape in a state where the cut portion 9a on the reinforcing piece 8 side and the cut portion 9b on the second support piece 7 side face each other. In addition, both cut portions may have a shape other than a triangle as long as the cut portion satisfies the above requirements.

  Embodiment 4 FIG.

  12 is a development view showing a state when the cushioning packaging material according to the present embodiment is unfolded, and FIG. 13 is a perspective view showing a state during the assembly of the deployed cushioning packaging material shown in FIG. 14 is a perspective view showing the assembled cushion packaging material shown in FIG. In these drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts.

  As shown in FIG. 12, the blank 2 according to the present embodiment includes a rectangular frame 5 having a window hole 4 and a first outer support formed by extending one opposing outer edge of the frame 5. Pieces 15, 15, first inner support pieces 16, 16 extending from one opposing inner edge of the frame 5, and second extending from the other opposing outer edge of the frame 5 Outer support pieces 17, 17, second inner support pieces 18, 18 formed by extending the other opposing inner edge of the frame 5, adjacent first outer support pieces 15, second outer support pieces 17, The side edge of the first outer support piece 15 (one support piece) is extended along the side edge of the second outer support piece 17 (the other support piece) so as to fill the corner formed by It consists of piece 8.

  The second outer support piece 17 includes an outer wall part 19 connected to the outer edge of the frame body 5, a frame wall part 21 connected to the outer wall part 19 via a folding line 20, and a folding line to the frame wall part 21. The inner wall portion 23 is connected to the inner wall portion 23 via the inner wall portion 23, and the auxiliary portion 24 is formed by extending both side edges of the inner wall portion 23. An insertion hole 25 is formed on the folding line 22. .

  The second inner support piece 18 includes an inner wall covering portion 26 connected to the inner edge of the frame body 5, and an insertion portion 27 protruding from the inner wall covering portion 26.

  A cutout 9 is formed in the reinforcing piece 8, and the cutout 9 extends at 45 degrees in the reinforcing piece 8 starting from the corner tip position 10 of the frame 5. In this state, the triangular shape is opened toward the second outer support piece 17.

  When assembling the developed cushioning packaging material shown in FIG. 12, the surface of the blank 2 on which the cushioning film 3 is not stretched is used as the surface, and as shown in FIG. Fold it to the surface side so that it is perpendicular to 5. Next, the reinforcing piece 8 is bent inward so as to be perpendicular to the first outer support piece 15, the entire second outer support piece 17 is bent to the surface side so as to be perpendicular to the frame body 5, and the second After the auxiliary portion 24 of the outer support piece 17 is bent to the back side so as to be perpendicular to the inner wall portion 23, the second outer support piece 17 is folded so as to be wound along the folding curves 20 and 22 to form a quadrangular prism shape. The back surface side of the reinforcing piece 8 and the surface side of the outer wall portion 19 in the second outer support piece 17 face each other. At this time, the reinforcing piece 8 and the second outer support piece are folded so that the portion of the buffer film 3 stretched over the cut portion 9 is overlapped with the portion of the buffer film 3 bonded to the reinforcing piece 8. 17 to be stored. Finally, after bending the second inner support piece 18 to the surface side so as to be perpendicular to the frame body 5, the insertion portion 27 of the second inner support piece 18 is inserted into the insertion hole 25 of the second outer support piece 17. Insert (see FIG. 14).

  According to this Embodiment, since the support piece which supports a frame is shape | molded in square pillar shape, the intensity | strength of a buffer packaging material improves more.

  Embodiment 5 FIG.

  15 is a development view showing a state when the shock-absorbing packaging material according to the present embodiment is unfolded, and FIG. 16 is a perspective view showing a state during the assembly of the developed shock-absorbing packaging material shown in FIG. 17 is a perspective view showing an assembled state of the developed cushioning packaging material shown in FIG. In these drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts.

  As shown in FIG. 15, the blank 2 according to the present embodiment has a rectangular frame 5 having a window hole 4 and a first outer support formed by extending one opposing outer edge of the frame 5. Pieces 28, 28, first inner support pieces 29, 29 formed by extending one opposed inner edge of the frame 5, and second formed by extending the other opposed outer edge of the frame 5. Outer support pieces 30, 30, second inner support pieces 31, 31 formed by extending the other opposing inner edge of the frame 5, adjacent first outer support pieces 28, second outer support pieces 30, The side edge of the first outer support piece 28 (one support piece) is extended along the side edge of the second outer support piece 30 (the other support piece) so as to fill a part of the corner formed by It consists of the reinforcing piece 8 formed.

  The first outer support piece 28 includes an outer wall portion 32 connected to the outer edge of the frame 5, a frame wall portion 34 connected to the outer wall portion 32 via a fold line 33, and a fold curve to the frame wall portion 34. 35, and an auxiliary portion 37 formed by extending both side edges of the inner wall portion 36. On the folding line 33, three insertion holes 38a, 38b, 38c is formed.

  The first inner support piece 29 includes an inner wall covering portion 39 connected to the inner edge of the frame body 5, a frame wall covering portion 41 connected to the inner wall covering portion 39 via a folding line 40, and a frame surface covering portion. The insertion part 42 protrudes from 41.

  The second outer support piece 30 includes an outer wall portion 43 connected to the outer edge of the frame body 5, a frame wall portion 45 connected to the outer wall portion 43 via a folding line 44, and both sides of the frame wall portion 45. It is comprised from the insertion part 46 which protrudes from an edge. The cut portion 9 is formed in the second outer support piece 30, and the cut portion 9 extends in the second outer support piece 30 at 45 degrees starting from the corner tip position 10 of the frame 5. In the state where the frame wall portion 45 of the second outer support piece 30 is left, the triangular shape opens toward the reinforcing piece 8.

  The buffer film 3 is formed in a rectangular shape that is slightly larger than the frame body 5. And as shown in FIG. 15, the edge part 11 which protruded from the frame 5 of the buffer film 3 stretched so as to cover the window hole 4 of the blank 2 is formed on the outer wall part 32 of the first outer support part 28. While being bonded, it is bonded to the reinforcing piece 8 and the outer wall 43 of the second outer support piece 30 in a state of straddling the cut portion 9. At this time, the edge 11 protruding from the frame body 5 of the buffer film 2 is stretched in a state where a part of the cut portion 9 located on the distal end side of the reinforcing piece 8 is left.

  In the case of assembling the developed cushioning packaging material shown in FIG. 15, the surface of the blank 2 on which the cushioning film 3 is not stretched is used as the surface, and as shown in FIG. After being bent to the surface side so as to be perpendicular to the body 5, the first outer support piece 28 is bent so as to be wound along the folding lines 33, 35 and formed into a quadrangular prism shape. The auxiliary portion 37 is bent inward so as to be perpendicular to the inner wall portion 36. Next, the reinforcing piece 8 is bent inward so as to be perpendicular to the outer wall portion 32 of the first outer support piece 28, and the entire second outer support piece 30 is bent to the surface side so as to be perpendicular to the frame body 5. The back surface side of the reinforcing piece 8 and the surface side of the outer wall portion 43 in the second outer support piece 30 face each other. At this time, the portion of the buffer film 3 stretched over the cut portion 9 turns around to the surface side of the outer wall portion 43 of the second outer support piece 30 and is folded so as to overlap the portion of the buffer film 3 adhered to the reinforcing piece 8. And stored between the outer wall 43 of the second outer support piece 30 and the reinforcing piece 8. Finally, the entire first inner support piece 29 is bent to the surface side so as to be perpendicular to the frame 5, and the first inner support piece 29 is bent along the folding line 40, so that the first inner support piece 29 is inserted. The portion 42 is inserted into the insertion hole 38a located at the center of the first outer support piece 28, the second outer support piece 30 is bent along the folding curve 44, and both insertion portions 46 of the second outer support piece 30 are bent. It inserts in the insertion holes 38b and 38c located in the right and left of the 1st outer side support piece 28 (refer FIG. 17).

  As the buffer film in each of the above embodiments, a commercially available synthetic resin film having flexibility and stretchability may be used. When a transparent film is used as the film, the packaged article can be seen through. Moreover, a blank may be formed with things other than cardboard, for example, can also be formed with synthetic resin sheets, such as polyethylene, a polypropylene, or PET.

  In each of the above embodiments, the blank frame has a rectangular shape, but may be formed in another polygonal shape such as a triangular shape or a pentagonal shape.

  Further, in each of the above embodiments, two reinforcing pieces are provided on each of the supporting pieces formed by extending one opposing outer edge of the rectangular frame body, but the present invention is not limited thereto. In addition, one reinforcing piece may be provided on each support piece formed by extending each outer edge in the rectangular frame, and one support piece formed by extending one outer edge in the rectangular frame. Alternatively, two reinforcing pieces may be provided only on one side, and one reinforcing piece may be provided on each of the supporting sides formed by extending the other two outer edges.

  Moreover, you may form a cut part in shapes other than a triangle.

1 is a perspective view showing a buffer packaging material according to Embodiment 1. FIG. It is an expanded view which shows the state at the time of expansion | deployment of the buffer packaging material shown in FIG. It is a partial enlarged plan view which shows the corner | angular part of the buffer packaging material shown in FIG. It is sectional drawing which shows the packaging material using the buffer packaging material shown in FIG. FIG. 7 is a partial development view showing another shape of the cut portion in the first embodiment. It is a perspective view which shows the buffer packaging material which concerns on Embodiment 2. FIG. It is an expanded view which shows the state at the time of expansion | deployment of the buffer packaging material shown in FIG. It is a partial enlarged plan view which shows the corner | angular part of the buffer packaging material shown in FIG. FIG. 10 is a partial development view showing another shape of a cut portion in the second embodiment. It is an expanded view which shows the state at the time of expansion | deployment of the buffer packaging material which concerns on Embodiment 3. FIG. FIG. 16 is a partial development view showing another shape of the cut portion in the third embodiment. It is an expanded view which shows the state at the time of expansion | deployment of the buffer packaging material which concerns on Embodiment 4. It is a perspective view which shows the state in the middle of the assembly of the expand | deployed buffer packaging material shown in FIG. It is a perspective view which shows the assembled state of the expand | deployed buffer packaging material shown in FIG. It is an expanded view which shows the state at the time of expansion | deployment of the buffer packaging material which concerns on Embodiment 5. FIG. It is a perspective view which shows the state in the middle of the assembly of the expand | deployed buffer packaging material shown in FIG. It is a perspective view which shows the assembled state of the expand | deployed buffer packaging material shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Buffer packaging material 2 Blank 3 Buffer film 4 Window hole 5 Frame body 6 1st support piece 7 2nd support piece 8 Auxiliary piece 9 Cutting part 10 Corner | tip edge position 11 Edge 12 Packaging material 13 Packaged goods 14 Outer frame member 15 First outer support piece 16 First inner support piece 17 Second outer support piece 18 Second inner support piece 19 Outer wall portion 20, 22 Folding curve 21 Frame wall portion 23 Inner wall portion 24 Auxiliary portion 25 Insertion hole 26 Inner wall covering portion 27 Insertion part 28 1st outer side support piece 29 1st inner side support piece 30 2nd outer side support piece 31 2nd inner side support piece 32 Outer wall part 33,35,40,44 Folding curve 34 Frame wall part 36 Inner wall part 37 Auxiliary part 38 Insertion hole 39 Inner wall covering part 41 Frame wall covering part 42 Insertion part 43 Outer wall part 45 Frame wall part 46 Insertion part

Claims (7)

Up to the position where the buffer film protrudes from the frame body with respect to the window hole of the frame body in a blank having a polygonal frame body having window holes and a support piece formed by extending each outer edge of the frame body In the shock-absorbing wrapping material formed into a frame shape by folding the support body so as to raise each support piece after covering the frame body, the corner formed by the adjacent support piece of the blank has the corner A reinforcing piece formed by extending the side edge of one support piece is provided along the side edge of the other support piece so as to fill, and includes at least the reinforcing piece or the other support piece. A cut-out portion that is widened at a predetermined angle starting from the corner tip position in the frame of the blank is formed, and the portion that protrudes from the frame of the buffer film straddles the cut-out portion and the reinforcing piece The other support piece and Cushioning packaging material, characterized in that it is bonded. The shock-absorbing packaging material according to claim 1, wherein the cut portion is in the reinforcing piece and is formed to open toward the other support piece. The shock-absorbing packaging material according to claim 1, wherein the cut portion is in the other support piece and is formed to open toward the reinforcing piece. The excision part straddles the reinforcing piece and the other support piece, the excised part on the reinforcing piece side is in the reinforcing piece, and is formed so as to open toward the other support piece, The shock-absorbing packaging material according to claim 1, wherein the cut-out portion on the other support piece side is in the other support piece and is formed to open toward the reinforcing piece. The cushioning packaging material according to any one of claims 1 to 4, wherein the predetermined angle has a half angle of an angle between the side edge of at least one support piece and the side edge of the other support piece. . The buffer according to any one of claims 1 to 5, wherein the buffer film is bonded to the reinforcing piece and the other support piece in a state where the portion protruding from the frame body is straddled so as not to completely cover the cut portion. Packaging material. A pair of the cushioning packaging materials according to claim 1, a cushioning film of the pair of cushioning packaging materials facing each other, and a packaged article sandwiched between the facing cushioning films, A packaging material characterized in that the pair of cushioning packaging materials are stored in an outer frame member in a state in which the gap between the pair of cushioning packaging materials facing each other in a sandwiched state is maintained.

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