JP2005271994A - Shock-absorbing packaging material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shock-absorbing packaging material with display functions superior in design, which has high strength and is not limited in display modes and can be placed in a stable state. <P>SOLUTION: The shock-absorbing packaging material composed of a pair of inner frame members with shock-absorbing films extends to cover a window hole and an outer frame member faced to hold the pair of inner frame members. The outer frame member is constituted of a parallelopiped body for surrounding outer peripheries of the pair of inner frame members, one of the side support pieces extending from one of opening rims of the parallelopiped body, and the other side support piece extending from the other opening rim of the parallelopiped body. The pair of inner frame members are provided in hollow parts of the parallelopiped body, and the outer periphery of one of the inner frame members is supported by one of the support pieces folded inwardly into the parallelopiped body. In addition, the outer periphery of the other inner frame member is supported by the other support piece folded inwardly into the parallelopiped body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a buffer packaging material having a display function.

  As is well known, as a cushioning packaging material that protects a packaged article such as a cracked object, an electronic device or a precision instrument from an impact generated during transportation, the packaged article is formed on an outer frame member by a transparent buffer film having flexibility and stretchability. There is a buffer packaging material to hold. According to this buffer packaging material, it is possible to easily confirm the packaged article through the transparent buffer film even after packaging.

  The cushioning packaging material is a packaging body that protects a product from impact by using a cushioning functional film as a cushioning material in Patent Document 1 described later, and at least the tray-shaped product storage portion and the cushioning functional film are windows. The intermediate frame portion at a position where the cushioning functional film comes into contact with the cushioning functional film in a tensioned state, the intermediate frame portion being affixed to a predetermined position of the product storage portion by a fixing means. And a packaging body with a buffer function which is held opposite to the above.

  However, in the packaging body with a buffer function described in Patent Document 1, since the packaged article can only be seen from the middle frame side, the entire packaged article cannot be confirmed, and the product description is provided on the back of the packaged article. In order to confirm the product description, it is necessary to take out the packaged article from the package once, which is very inconvenient.

  Thus, as a cushioning packaging material that solves the above problems, a cushioning packaging material that holds a packaged article on a cylindrical outer frame member in a state of being sandwiched between a pair of cushioning films has been developed. 2. A cylindrical holding frame having a width in which a packaged object is decompressed or vacuum-packed with a permeable, flexible and tough sheet so as to have an adhesive end portion of the sheet around the sheet, and then has a width such that the packaged object does not protrude. A packaging container is disclosed in which the sheet bonding end is locked to the holding frame wall so as to be inserted inside and to suspend the article to be packaged.

  Further, in Patent Document 3 mentioned later, a buffer member in which two film frames having a window frame with a holding film stretched are connected by a wide hinge, and the buffer member by the two film frames and the like are closed by a hinge and accommodated. A packaging material comprising a box body, the box body having an opening facing both holding films on a peripheral wall, the buffer member having an offset portion formed by bending or the like, and the offset portion is A film packaging material is disclosed that constitutes offset means for retracting and fixing each film frame to a position recessed from the opening of the box.

  According to this type of cushioning packaging material, the entire packaged article can be confirmed through both cushioning films even after packaging, and the packaged article is held in a suspended state with respect to the outer frame member. Therefore, the buffer performance is very high, and a strong appeal effect to the viewer can be expected.

  However, the packaging container described in Patent Document 2 has a problem that its strength is very low because the holding frame has a single structure. In addition, since the sheet adhesion end portion protrudes from the outer peripheral surface of the holding frame, there is a problem in that it cannot be placed in a stable state when any outer peripheral surface of the holding frame is used as a bottom surface. Furthermore, since it is necessary to lock each sheet bonding end to the holding frame wall in the packaging process, there is a problem that workability is poor and it is difficult to position the packaged article at the center of the holding frame. .

Further, the film packaging material described in Patent Document 3 also has a problem that the strength is very low because the peripheral wall of the box that supports the offset portion of the buffer member has a single structure. Furthermore, since an opening for taking in and out the buffer member is formed on any peripheral wall of the box, when the opening is directed downward in a state where a heavy packaged article is packaged, the packaged article is held from the box by the holding film. There was a problem of falling out with.
Japanese Patent Laid-Open No. 11-268768 (pages 2 and 3, FIGS. 1 and 2) Japanese Examined Patent Publication No. 54-712 (2nd page, Fig. 3) JP 2001-278343 A (5th page, FIG. 6 and FIG. 7)

  Therefore, the present invention is technically intended to obtain a buffer packaging material having a display function excellent in design and having a very high strength, an aspect of the display is not limited, and can be placed in a stable state. As a result, as a result of repeated research and experiments to realize the realization, a pair of middle frame members over which a buffer film is stretched so as to cover the window hole and the pair of middle frame members are held facing each other. In the shock-absorbing packaging material comprising the outer frame member, the outer frame member surrounds the outer peripheral edge of the pair of middle frame members, the one side support piece formed by extending one opening edge of the cylindrical body, The other side support piece formed by extending the other opening edge of the cylindrical body, and the pair of middle frame members are respectively disposed in the hollow portions of the cylindrical body and are folded inward of the cylindrical body The outer peripheral edge of the one inner frame member by the side support piece If the outer peripheral edge of the other inner frame member is supported by the other side support piece that is supported and folded inward of the cylindrical body, the remarkable knowledge that the strength is remarkably improved is obtained, It has achieved technical challenges.

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

  That is, the shock-absorbing packaging material according to claim 1 of the present invention includes a pair of middle frame members in which a buffer film is stretched so as to cover the window hole, and an outer frame that holds the pair of middle frame members facing each other. In the shock-absorbing packaging material comprising the member, the outer frame member surrounds the outer peripheral edge of the pair of middle frame members, the one side support piece formed by extending one opening edge of the cylinder, and the cylinder And the other side support piece formed by extending the other opening edge, and the pair of middle frame members are respectively disposed in the hollow portions of the cylindrical body and are supported on the one side folded inward of the cylindrical body The outer peripheral edge portion of the one inner frame member is supported by the piece, and the outer peripheral edge portion of the other inner frame member is supported by the other side support piece folded inward of the cylindrical body. .

  Moreover, the shock-absorbing packaging material according to claim 2 of the present invention is the shock-absorbing packaging material according to claim 1, wherein the one-side support piece folded inward of the cylindrical body is provided on the inner periphery of one opening side of the cylindrical body. A flange is formed, and a flange is formed on the inner periphery of the other opening side of the cylindrical body by the other side support piece folded inwardly of the cylindrical body. The outer peripheral edge of one of the inner frame members is supported by the flange, and the outer peripheral edge of the other inner frame member is supported by the flange formed on the other opening side inner periphery of the cylinder. .

  Moreover, the buffer packaging material which concerns on Claim 3 of this invention is the buffer packaging material of the said Claim 2. The flange formed in the one opening side inner periphery of a cylinder faces the other opening of this cylinder. It is formed in a planar shape, and a flange formed on the inner periphery of the other opening side of the cylindrical body is formed in a planar shape facing one opening of the cylindrical body.

  The shock-absorbing packaging material according to claim 4 of the present invention is the shock-absorbing packaging material according to any one of claims 1 to 3, wherein the one side support piece folded inward of the cylindrical body is formed in a column shape. The other side support piece folded inward of the cylindrical body is formed in a columnar shape.

  Moreover, the buffer packaging material which concerns on Claim 5 of this invention is a buffer packaging material in any one of the said Claim 1 thru | or 4. An outer frame member consists of one sheet of blanks, and comprises a cylinder in a blank. A plurality of outer wall portions are connected in a row, and a connecting portion is formed on a side edge of the outer wall portion located at one end of the plurality of outer wall portions arranged in a row. One side support piece is connected to the lower edge of the outer wall portion serving as the opening edge, and the other side support piece is connected to the upper edge of the outer wall portion serving as the other opening edge of the cylindrical body. A cylindrical body is formed by bending in the same direction and connecting the connecting portion to the side edge of the outer wall portion located at the other end of the plurality of outer wall portions arranged in a row.

  In carrying out the present invention, in the cushioning packaging material, the one-side support piece includes an inner wall portion connected to one opening edge of the cylindrical body and a flange portion connected to the inner wall portion, The side support piece includes an inner wall portion connected to the other opening edge of the cylindrical body and a flange portion connected to the inner wall portion, and the one side support piece is folded so as to be wound inward of the cylindrical body. A flange portion is formed on the inner periphery of one opening side of the cylindrical body by a flange portion facing the other opening, and the flange portion faces one opening of the other side support piece folded so as to be wound inwardly of the cylindrical body A flange is formed on the inner periphery of the other opening side of the cylindrical body, and an outer peripheral edge portion of the one inner frame member is supported by the flange formed on the inner peripheral side of the one opening side of the cylindrical body, and the cylinder Flange formed on the inner periphery of the other opening side of the body Therefore it can be assumed that the outer peripheral edge portion of the other of the inner frame member is supported.

  In carrying out the present invention, in the cushioning packaging material, the one side support piece is connected to the one opening edge of the cylindrical body, the flange portion connected to the inner wall portion, and the flange portion. A tip portion connected to the inner wall portion, a flange portion connected to the inner wall portion, and a tip portion connected to the flange portion. And a flange is formed on the inner periphery of one opening side of the cylindrical body by a flange portion facing the other opening of the one side support piece that is folded to be wound inwardly of the cylindrical body and formed into a columnar shape. A flange is formed on the inner periphery of the other opening side of the cylindrical body by a flange portion facing the one opening of the other side support piece that is folded so as to be wound inwardly of the cylindrical body and formed into a columnar shape. Flange formed on the inner periphery of one opening side Therefore, the outer peripheral edge part of one middle frame member is supported, and the outer peripheral edge part of the other middle frame member is supported by the flange formed on the other opening side inner periphery of the cylinder. it can.

  In carrying out the present invention, the cushion packaging material may have folds formed on the inner wall portion.

  In carrying out the present invention, in the cushioning packaging material, hook portions are respectively formed in adjacent side edge portions of adjacent one side support pieces, and adjacent side edge portions of the adjacent other side support pieces are formed. A hooking portion is formed, the hooking portions of the adjacent one side support pieces folded inward of the cylindrical body mesh with each other, and the hooking portions of the adjacent other side support piece folded inwardly of the cylindrical body are They can also be engaged with each other.

  In carrying out the present invention, in the cushioning packaging material, each middle frame member is composed of a frame body having a window hole and an outer projecting piece orthogonal to the frame body, and is disposed in a hollow portion of the cylindrical body. The outer projecting piece of the other middle frame member is inserted between the cylindrical body and the one side support piece folded inward of the cylindrical body, and the other middle part disposed in the hollow portion of the cylindrical body The outer projecting piece of the frame member may be inserted between the cylinder and the other support piece folded inward of the cylinder.

  According to the present invention, since the structure in which the packaged article is held by the outer frame member in a state of being sandwiched by the transparent buffer film stretched between the pair of middle frame members is employed, the packaged article is suspended from the outer frame member. Therefore, the article to be packaged appears to float in the middle of the outer frame member and exerts a strong appeal effect to the viewer. Moreover, since the outer frame member that holds the pair of middle frame members has a multiple structure including the outer wall portion that forms the cylindrical body and the inner wall portion that forms the support piece, the strength is significantly improved.

  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 an exploded perspective view showing the assembly of the cushioning packaging material according to the present embodiment, and FIG. 2 is a perspective view showing the assembled state of the cushioning packaging material according to the present embodiment. 3 is a development view showing an inner frame member of the cushioning packaging material shown in FIG. 1, FIG. 4 is a development view showing an outer frame member of the cushioning packaging material shown in FIG. 1, and FIG. 5 is shown in FIG. It is the longitudinal cross-sectional view which showed the buffer packaging material. In these drawings, reference numeral 1 denotes a buffer wrapping material comprising a pair of middle frame members 3 and 3 for sandwiching the packaged article 2 and an outer frame member 4 for holding the pair of middle frame members 3 and 3. The frame member 4 includes a cylindrical body 5 surrounding the outer peripheral edges of the pair of middle frame members 3, 3, one side support piece 6 formed by extending one opening edge of the cylindrical body 5, and the other side of the cylindrical body 5. It is comprised from the other side support piece 7 which extends an opening edge. In the following, when simply described as “support piece”, “one side support piece” and “the other side support piece” are shown.

  As shown in FIG. 3, the middle frame member 3 has a buffer film 9 (shown by a dotted line in FIG. 3) stretched over one side of a blank 8 formed by punching cardboard or other thick paper. The predetermined position is bent. The blank 8 is composed of an outer peripheral rectangular frame 11 having a window hole 10 and an outer protrusion 12 formed by extending the outer peripheral edge of the frame 11, and a folding line 13 is formed at the boundary portion. Has been. The buffer film 9 is stretched so as to cover the window hole 10 of the frame body 11, and the outer peripheral edge portion is bonded to each outer protrusion 12.

  In addition, as a bonding method of the buffer film 9, the buffer film may be heat-welded, or may be bonded using an adhesive.

  As shown in FIG. 4, the outer frame member 4 is composed of a single blank 14 formed by punching cardboard or other thick paper, and a predetermined position of the blank 14 is bent and a predetermined portion is glued. The blank 14 is connected with four outer wall portions 15 constituting the cylindrical body 5 in a line, and a folding line 16 is formed at a boundary portion thereof. The four outer wall portions 15 arranged in a row are formed by alternately connecting the long outer wall portions 15 and the short outer wall portions 15, and the long outer wall portion 15 located on one end side. A margin portion 17 (connecting portion) is connected to the edge via a folding line 18.

  One side support piece 6 formed by extending a lower edge serving as one opening edge of the cylindrical body 5 is connected to the outer wall portion 15 via a folding line 19 and is connected to the other opening edge of the cylindrical body 5. The other support piece 7 formed by extending the upper edge is connected via a folding line 20.

  The support pieces 6 and 7 include an inner wall portion 21 connected to the outer wall portion 15, a flange portion 23 connected to the inner wall portion 21 via a first folding curve 22, and a flange portion 23 via a second folding curve 24. And a tip portion 25 connected to each other. The supporting pieces 6, 7 connected to the short outer wall portion 15 have hooking pieces 26 (hooking portions) protruding from both side edges of the inner wall portion 21, and straddle the first folding curve 22. A finger hook hole 27 is formed on the top. Further, the support pieces 6 and 7 connected to the long outer wall portion 15 are inserted with hook pieces 26 of the support pieces 6 and 7 connected to the short outer wall portion 15 on both side edges of the inner wall portion 21. A hooking hole 28 (hooking portion) is formed.

  Next, a method for assembling the cushioning packaging material according to the present embodiment will be described.

  First, the four outer wall parts 15 and the margin part 17 of the blank 14 which comprises the outer frame member 4 are bend | folded at right angles in the same direction along the folding line 16 and the folding line 18, respectively, and the margin part 17 is located in a line. By adhering to the side edge of the short outer wall portion 15 located at the other end of the four outer wall portions 15, the cylindrical body 5 having a hollow cross section is assembled.

  Next, the one side support piece 6 connected to the elongate outer wall portion 15 is bent inward of the cylindrical body 5 along the first folding line 22 and the second folding line 24 to be formed into a triangular prism shape. Then, the flange part 23 of the said one side support piece 6 is made to face the other opening of the cylinder 5 by folding the said one side support piece 6 whole along the folding line 19 inward of the cylinder 5. FIG. Subsequently, the one side support piece 6 connected to the short outer wall portion 15 is bent inward of the cylindrical body 5 along the first folding line 22 and the second folding line 24 to be formed into a triangular prism shape. Then, the flange part 23 of the said one side support piece 6 is made to face the other opening of the cylinder 5 by folding the said one side support piece 6 whole along the folding line 19 inward of the cylinder 5. FIG. At this time, the hook piece 26 of the one side support piece 6 connected to the short outer wall portion 15 is inserted into the hook hole 28 of the one side support piece 6 connected to the long outer wall portion 15. Accordingly, a flange 29 facing the other opening is formed by the flange portion 23 of each one-side support piece 6 on the inner periphery of one opening side of the cylindrical body 5.

  Next, each outer protrusion 12 of the blank 8 constituting the inner frame member 3 is bent at a right angle along the folding line 13 so that the buffer film 9 is on the outer side. Subsequently, one middle frame member 3 is accommodated in the hollow portion of the cylindrical body 5 from the other opening of the cylindrical body 5. At this time, the surface of the one inner frame member 3 on which the buffer film 9 is not stretched is directed to one opening side of the cylindrical body 5. The outer projecting pieces 12 of one of the inner frame members 3 are inserted between the cylindrical body 5 and the one side support piece 6, and the frame body 11 constituting the outer peripheral edge of the one inner frame member 3 is flanged 29. Abut.

  Next, after the article to be packaged 2 is placed in the window hole 10 on which the buffer film 9 of the one inner frame member 3 is stretched, the other inner frame member 3 is cylindrical as the one inner frame member 3. 5 is housed in the hollow portion of the cylindrical body 5 from the other opening. At this time, the surface of the other middle frame member 3 on which the buffer film 9 is not stretched is directed to the other opening side of the cylindrical body 5. Accordingly, the pair of middle frame members 3 and 3 are disposed in the hollow portion of the cylindrical body 5 with the surface over which the buffer film 9 is stretched facing each other.

  Finally, after the other side support piece 7 connected to the long outer wall portion 15 is folded inward of the cylindrical body 5 in the same manner as the one side support piece 6 connected to the long outer wall portion 15. The other support piece 7 connected to the short outer wall portion 15 is folded inward of the cylindrical body 5 in the same manner as the one support piece 6 connected to the short outer wall portion 15. Thereby, the flange 30 which faces one opening is formed in the other opening side inner periphery of the cylinder 5 by the flange part 23 of each other side support piece 7, and the frame 11 of the other middle frame member 3 is formed. In addition, the outer projecting piece 12 of the other middle frame member 3 is inserted between the cylindrical body 5 and the other support piece 7.

  According to this Embodiment, since each support piece folded inward of the cylinder is shape | molded in the shape of a triangular prism, intensity | strength improves markedly. Further, the fold is not formed on the inner wall portion of the support piece which is the inner peripheral surface of the cushioning packaging material, and the force with which the frame presses the flange concentrates on the crease formed at the boundary portion between the cylinder and the support piece. Therefore, the strength is further improved without distorting the cross-sectional shape of the support piece.

  Further, when the article to be packaged becomes large, the tension state of the buffer film increases, and the force with which the frame body presses the flange increases accordingly, but according to the present embodiment, the flange is formed by the flange portion having a width. Since the inner frame member is supported in contact with the flange on the surface, even if the strength of the cardboard used as the blank material is weak (even if the thickness is thin), a larger article to be packaged is packaged. be able to. Furthermore, when the article to be packaged becomes large, the tension state of the buffer film increases, and the force with which the buffer film pulls the frame body in the hollow direction of the cylinder body increases accordingly, but according to the present embodiment, the frame body The outer projecting piece orthogonal to the other is provided and the outer projecting piece is inserted between the cylindrical body and the support piece, so that the frame body does not come off the flange.

Embodiment 2. FIG.

  This embodiment is a modified example of the support piece in the first embodiment, FIG. 6 is a developed view showing the outer frame member of the cushioning packaging material according to the first modified example of the present embodiment, and FIG. FIG. 8 is a longitudinal sectional view showing a cushioning packaging material according to Modification 1 of the embodiment, and FIG. 8 is a development view showing an outer frame member of the cushioning packaging material according to Modification 2 of the present embodiment. 9 is a longitudinal sectional view showing a shock-absorbing packaging material according to Modification 2 of the present embodiment. In these drawings, the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts.

  Modification Example 1 In the support pieces 6 and 7 according to this modification example, as shown in FIG. 6, a third folding line 31 is formed at an intermediate position of the inner wall part 21 connected to the outer wall part 15. Then, hook holes 28 are formed on both side edges of the inner wall portion 21 of the support pieces 6a and 7a connected to the long outer wall portion 15 located at one end of the four outer wall portions 15 arranged in a row. Has been. Further, the inner wall 21 of the support pieces 6b and 7b adjacent to the support pieces 6a and 7a has a hook piece 26 formed on the side edge adjacent to the support pieces 6a and 7a and hooks on the side edge portion not adjacent to the support pieces 6a and 7a. A hole 28 is formed. Further, the inner wall portion 21 of the support pieces 6c, 7c adjacent to the support pieces 6b, 7b has a hook piece 26 formed on the side edge adjacent to the support pieces 6b, 7b, and hooks on the side edge portions not adjacent to each other. A hole 28 is formed. Further, the support pieces 6d and 7d adjacent to the support pieces 6c and 7c, that is, the support pieces 6d and 7d connected to the short outer wall portion 15 located at the other end of the four outer wall portions 15 arranged in a row. On the inner wall portion 21, hook pieces 26 are formed on both side edges.

  Therefore, when the support pieces 6 and 7 according to the present modification are folded inward of the cylindrical body 5, first, as shown in FIG. 7, the support pieces 6a and 7a are formed with the first folding line 22 and the second folding line. 24 and the third folding line 31 are bent inward of the cylindrical body 5 to be formed into a quadrangular prism shape. Then, the flanges 23 of the support pieces 6a and 7a are made to face the opening of the cylinder 5 by folding the entire support pieces 6a and 7a along the folding lines 19 and 20 inward of the cylinder 5. Next, the support pieces 6b and 7b are folded inward of the cylindrical body 5 similarly to the support pieces 6a and 7a. At this time, the hook pieces 26 of the support pieces 6b and 7b are inserted into the hook holes 28 of the support pieces 6a and 7a. Subsequently, the support pieces 6c and 7c are folded inward of the cylindrical body 5 similarly to the support pieces 6a and 7a. At this time, the hook pieces 26 of the support pieces 6c and 7c are inserted into the hook holes 28 of the support pieces 6b and 7b. Finally, the support pieces 6d and 7d are folded inward of the cylindrical body 5 similarly to the support pieces 6a and 7a. At this time, the hook pieces 26, 26 of the support pieces 6d, 7d are inserted into the hook holes 28 of the support pieces 6a, 7a or the hook holes 28 of the support pieces 6c, 7c, respectively. As a result, flanges 29 and 30 including the flange portions 23 of the support pieces 6 and 7 are formed on the inner periphery of each opening side of the cylindrical body 5.

  According to this modification, since the support piece folded inward of the cylindrical body is formed into a quadrangular prism shape, the strength is significantly improved.

  Modification 2: The support pieces 6 and 7 according to this modification are configured only from the inner wall 21 connected to the outer wall 15 of the cylindrical body 5 as shown in FIG. And the uneven | corrugated engagement piece 31 (hook part) formed so that it may mesh with the adjacent side edge in the adjacent support pieces 6 and 7 is formed, respectively.

  Therefore, when the support pieces 6 and 7 according to this modification are folded inward of the cylinder 5, the support pieces 6 and 7 are folded along the folding lines 19 and 20 as shown in FIG. 9. Are folded inward so that the tips of the support pieces 6 and 7 are opposed to the opening of the cylindrical body 5. At this time, the engagement pieces 31 formed on the adjacent side edges of the adjacent support pieces 6 and 7 are engaged with each other. As a result, flanges 29 and 30 formed from the tips of the support pieces 6 and 7 are formed on the inner periphery of each opening side of the cylindrical body 5.

  According to the present modification, the outer frame member that holds the middle frame member has a multiple structure, so that the strength is improved. Moreover, since the support piece is comprised only from the inner wall part, an outer frame member can be reduced in weight and size. Further, as a fixing means when each support piece is folded inward of the cylindrical body, a structure in which adjacent side edges of adjacent support pieces are engaged with each other is adopted, so that when each support piece is folded inward of the cylindrical body The folding order is not limited, and the support pieces can be folded in any order, so that workability is improved.

  The pair of middle frame members in the present invention may be held on the outer frame member in close contact as in each of the above embodiments, and a certain distance is provided between the pair of middle frame members. The outer frame member may hold it. In this case, a larger packaged article can be held.

  In addition, a pair of separate middle frame members may be used as in each of the above embodiments, and a pair of integrated one body by connecting one side of one middle frame member and one side of the other middle frame member. An intermediate frame member may be used. In addition, a pair of middle frame members may be integrated by being connected via a hinge between one side of one middle frame member and one side of the other middle frame member.

  In addition, when the article to be packaged is relatively small or thin, the outer projecting piece of the middle frame member may not be provided. In this case, what is necessary is just to adhere | attach the outer peripheral edge part of a buffer film to a frame.

  The hollow cross-sectional shape of the cylindrical body constituting the outer frame member is not limited to the rectangular shape as in each of the above-described embodiments, but may be other polygonal shapes such as a triangular shape or a pentagonal shape, or other shapes. Also good.

  Further, the support piece folded inward of the cylindrical body is not limited to a triangular prism shape or a quadrangular prism shape, but may be other polygonal shapes or other column shapes.

  Moreover, the design property can be further enhanced by applying a pattern or a color to the portion appearing on the outer surface of the outer frame member.

  The outer frame member is not limited to cardboard, and may be formed of a synthetic resin such as polyethylene, polypropylene or PET, or a metal such as stainless steel or aluminum.

  The frame body having the window hole of the middle frame member is not limited to cardboard, and may be formed of a synthetic resin such as polyethylene, polypropylene or PET, or a metal such as stainless steel or aluminum.

FIG. 3 is an exploded perspective view showing the midway of assembly of the cushioning packaging material according to the first embodiment. It is the perspective view which showed the assembled state of the buffer packaging material which concerns on Embodiment 1. FIG. It is the expanded view which showed the middle frame member of the buffer packaging material shown in FIG. It is the expanded view which showed the outer frame member of the buffer packaging material shown in FIG. It is the longitudinal cross-sectional view which showed the buffer packaging material shown in FIG. 6 is a development view showing an outer frame member of a shock-absorbing packaging material according to Modification 1 of Embodiment 2. FIG. 6 is a longitudinal sectional view showing a shock-absorbing packaging material according to Modification 1 of Embodiment 2. FIG. 10 is a development view showing an outer frame member of a shock-absorbing packaging material according to Modification 2 of Embodiment 2. FIG. It is the longitudinal cross-sectional view which showed the buffer packaging material which concerns on the modification 2 of Embodiment 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Buffer packaging material 2 Packaged article 3 Middle frame member 4 Outer frame member 5 Cylindrical body 6 One side support piece 7 The other side support piece 8 Blank 9 Buffer film 10 Window hole 11 Frame body 12 Projection piece 13 Folding curve 14 Blank 15 Outer wall portion 16, 18, 19, 20 Folding curve 17 Glue margin 21 Inner wall portion 22 First folding curve 23 Flange portion 24 Second folding curve 25 Tip portion 26 Hooking piece 27 Finger hooking hole 28 Hooking hole 29, 30 Flange 31 First Trifold curve

Claims (5)

In a shock-absorbing packaging material comprising a pair of middle frame members in which a cushion film is stretched so as to cover a window hole and an outer frame member that holds the pair of middle frame members facing each other, the outer frame member is A cylindrical body surrounding the outer peripheral edges of the pair of middle frame members, one side support piece formed by extending one opening edge of the cylindrical body, and the other side support piece formed by extending the other opening edge of the cylindrical body; The pair of middle frame members are respectively disposed in the hollow portions of the cylindrical body, and the outer peripheral edge of the one middle frame member is supported by the one side support piece folded inward of the cylindrical body. And the outer-periphery edge part of the said other inner frame member is supported by the other side support piece folded inward of the said cylinder, The buffer packaging material characterized by the above-mentioned. A flange is formed on the inner periphery of one opening side of the cylinder by the one side support piece folded inward of the cylinder, and the other side support piece folded inward of the cylinder A flange is formed on the inner periphery of the other opening side, the outer peripheral edge of one inner frame member is supported by the flange formed on the inner periphery of one opening side of the cylindrical body, and the other opening of the cylindrical body The shock-absorbing packaging material according to claim 1, wherein an outer peripheral edge portion of the other middle frame member is supported by a flange formed on a side inner periphery. A flange formed on the inner periphery of one opening side of the cylinder is formed in a planar shape facing the other opening of the cylinder, and a flange formed on the inner periphery of the other opening side of the cylinder is the cylinder. The shock-absorbing packaging material according to claim 2, wherein the cushion-wrapping material is formed in a planar shape facing one opening of the body. The one side support piece folded inward of the cylinder is formed in a columnar shape, and the other side support piece folded inward of the cylinder is formed in a columnar shape. The buffer packaging material described. The outer frame member is composed of one blank, and the blank is connected in a state where a plurality of outer wall portions constituting the cylindrical body are arranged in a row, and is positioned at one end of the plurality of outer wall portions arranged in a row. A connecting portion is formed on the side edge of the outer wall portion, and one side support piece is connected to the lower edge of the outer wall portion serving as one opening edge of the cylindrical body, and the other opening edge of the cylindrical body The other side support piece is connected to the upper edge of the outer wall portion, and each outer wall portion is bent in the same direction, and the connecting portion is connected to the side edge of the outer wall portion located at the other end of the plurality of outer wall portions arranged in a row. The shock-absorbing packaging material according to any one of claims 1 to 4, wherein a cylindrical body is formed.

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