Packing material

Abstract

To provide a new type packing material exhibiting a unique function even with a simple structure.SOLUTION: The packaging material is formed of a first packing material 2 exhibiting rigidity, and a second packing material 3 full of flexibility. The first packing material 2 comprises: a seat face part 4 having rectangular outlines for a packed article M; and side face parts 5 continuously connected to the seat face part 4 via respective base ruled lines 6 at four side parts 4a of the seat face part 4. While base side portions 5a at the side face parts 5 are made to be liftable via folding based on the base ruled lines 6, terminal side portions 5b are made to be foldable via folding based on intermediate ruled lines 7. Through-holes 9 through which insertion parts 8 formed at the terminal side portions 5b and parts 3a of the second packing material 3 located on faces 2a of the base face part 4 are possible to pass together are formed on the seat face part 4.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to improvements in packaging materials. [Background technology]

[0002] A packaging material that has a flexible sheet-like body that holds the packaged item between itself and a base plate and that can be placed inside an outer box while holding the packaged item is disclosed in Patent Document 1. In the material disclosed in Patent Document 1, the insertion pieces of the raised second and third side parts are inserted into insertion holes together with parts of the sheet-like body, thereby tensioning the sheet-like body between the packaged item and the insertion pieces, thereby preventing movement of the packaged item over the center part and movement of the packaged item away from the center part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-76083 Summary of the Invention [Problem to be solved by the invention]

[0004] The main problem that this invention aims to solve is to provide a new type of packaging material that has a simple structure but unprecedented functionality, by utilizing a first packaging material made of a planar material with a certain degree of rigidity, such as a corrugated cardboard sheet or paperboard, and a second packaging material made of a planar material with high flexibility, such as cloth. [Means for solving the problem]

[0005] In order to achieve the above object, in this invention, the packaging material is a first packaging material made of a planar material having a certain rigidity such as a corrugated cardboard sheet or a paperboard, A packaging material comprising a second packaging material made of a flat, flexible material such as cloth, The first packaging material is A seat portion having a rectangular contour for the packaged item; and side portions connected to the seat portion via base creases at the four sides of the seat portion, Each of the side surfaces is divided into a base portion and a terminal portion by an intermediate crease parallel to the base crease, and the base portion can be raised by folding along the base crease, and the terminal portion can be folded so that the surface of the base portion, the surface of which has been raised by folding along the intermediate crease, is abutted against the surface of the base portion via the second packaging material. The seat portion is formed with a through hole at least extending between an imaginary first line segment along the base line and an imaginary second line segment positioned closer to the center of the seat portion on each of the four sides, and in the folded state, allows the insertion portion formed in the terminal side portion to pass through together with a part of the second packaging material positioned on the surface of the seat portion.

[0006] According to this configuration, the items to be packaged can be packaged in the following manner. First, the item to be packaged is placed on the seat portion of the first packaging material. Next, the second packaging material is placed on top of the first packaging material with the packaged item positioned on the seat portion. Next, the base side portions of the side surfaces connected to the four sides of the seat are raised up relative to the seat. Next, the terminal side portion of the side surface that has been raised as described above is folded in as described above, and the insertion portion is inserted into the through-hole together with a part of the second packaging material, thereby making it possible to apply tension to the second packaging material between the packaged item and the insertion portion. Since the side portions are formed on each of the four sides of the seat, by folding the side portions connected to each side as described above and inserting the insertion portions into the through-holes, the second packaging material can be tensioned between the item to be packaged and each side of the seat, thereby preventing the item from moving along the surface of the seat on the seat and from moving away from the seat.

[0007] In one aspect of the present invention, the base side portion of the side surface is provided with an opening for passing the second packaging material that communicates with the through hole on the first line. In this case, the second packaging material can be placed on the first packaging material with the packaged object positioned on the seat portion, with a portion of the second packaging material passing through each of the four passage openings formed in the side surfaces. This allows the second packaging material to be tightly attached to the packaged object on the first packaging material, temporarily preventing the packaged object from moving, before the side surfaces are folded as described above and the insertion portions are inserted into the through holes.

[0008] In addition, one aspect of the present invention is to make the distance between the end of the insertion portion on the side surface and the intermediate line slightly larger than the distance between the first line segment and the intermediate line.

[0009] Furthermore, one aspect of the present invention is that in the folded state, the hole edge on the second line segment of the through hole is abutted against the end of the insertion portion so as to prevent movement of the insertion portion around the intermediate line. [Effects of the Invention]

[0010] According to this invention, by using a first packaging material made of a planar material with a certain degree of rigidity, such as a cardboard sheet or paperboard, and a second packaging material made of a planar material with high flexibility, such as cloth, it is possible to achieve a simple structure, yet properly hold the packaged items on the seat portion of the first packaging material by raising and folding the first packaging material at four points. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a packaging material (first example) according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view showing the state in which the object to be packed is packed according to the first example. [Figure 3] FIG. 3 is a cross-sectional view taken along line AA in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line BB in FIG. [Figure 5] FIG. 5 is a plan view of the first packaging material constituting the first example, and shows the second packaging material in an unfolded state by imaginary lines. [Figure 6] FIG. 6 is a plan view of the first packaging material constituting the first example. [Figure 7] FIG. 7 is a front view of the first packaging material constituting the first example. [Figure 8] FIG. 8 is a right side view of the first packaging material constituting the first example. [Figure 9] FIG. 9 is a cross-sectional view taken along line CC in FIG. [Figure 10] FIG. 10 is a perspective view of the first packaging material constituting the first example. [Figure 11] FIG. 11 is a perspective view of a packaging material (second example) according to an embodiment of the present invention. [Figure 12] FIG. 12 is a perspective view showing the state in which the object to be packed is packed according to the second example. [Figure 13] FIG. 13 is a cross-sectional view taken along line EE in FIG. [Figure 14] FIG. 14 is a cross-sectional view taken along line DD in FIG. [Figure 15] FIG. 15 is a plan view of the first packaging material constituting the second example, and shows the second packaging material in an unfolded state by imaginary lines. [Figure 16] FIG. 16 is a plan view of the first packaging material constituting the second example. [Figure 17] FIG. 17 is a front view of the first packaging material constituting the second example. [Figure 18] FIG. 18 is a right side view of the first packaging material constituting the second example. [Figure 19] FIG. 19 is a cross-sectional view taken along the line FF in FIG. [Figure 20] FIG. 20 is a perspective view of the first packaging material constituting the second example. DETAILED DESCRIPTION OF THE INVENTION

[0012] A typical embodiment of the present invention will be described below with reference to Figures 1 to 20. Packaging material 1 according to this embodiment is typically placed in an outer box B while holding an item M to be packed, and is used to store the item M inside the outer box B without any roughness.

[0013] 1 to 10 show a first example of the packaging material 1, and FIGS. 11 to 20 show a second example in which the configuration of the first example is partially modified.

[0014] (Example 1) Such packaging material 1 is composed of a second packaging material 3 which is flat and made of a flexible material, and a first packaging material 2 which is flat and made of a material which does not have the flexibility of the second packaging material 3 but has a certain degree of rigidity. A corrugated cardboard sheet, a paperboard, a thick resin sheet, etc. can be used as the first packaging material 2. The first packaging material 2 is typically produced by punching these sheets or the like. Typically, nonwoven fabric, woven fabric, knitted fabric, resin sheet, etc. can be used as the second packaging material 3. The second packaging material 3 is typically produced by cutting these fabrics, etc.

[0015] In the illustrated example, the second packaging material 3 is configured to have a size that covers at least a seat portion 4 (described below) of the first packaging material 2 when the second packaging material 3 is placed on the surface 2a of the first packaging material 2. The second packaging material 3 may be configured to have a size that covers the entire first packaging material 2. The shape of the second packaging material 3 may be changed as needed. In the illustrated example, the second packaging material 3 has a rectangular outline.

[0016] On the other hand, the first packaging material 2 has a seat portion 4 having a rectangular outline corresponding to the packed item M, and side portions 5 connected to the seat portion 4 via base lines 6 at each of the four side portions 4a of the seat portion 4.

[0017] The seating surface 4 is large enough to place the packaged item M. The seating surface 4 has four corners 4b and sides 4a extending between adjacent corners 4b, and the adjacent sides 4a intersect at the corners 4b at right angles. In the illustrated example, the seat portion 4 has a width and a length.

[0018] The side surfaces 5 are respectively connected to the four sides 4a of the seat surface 4. The seat surface 4 and the four side surfaces 5 form the first packaging material 2, with the side of the seat surface 4 on which the packaged item M is placed being the front surface 2a of the first packaging material 2 (i.e., the seat surface 4 and the side surfaces 5), and the opposite side being the back surface 2b of the first packaging material 2 (i.e., the seat surface 4 and the side surfaces 5).

[0019] Each of the side surfaces 5 is divided into a base portion 5a and a terminal portion 5b by an intermediate crease 7 parallel to the base crease 6. The base side portion 5a can be raised by folding along the base crease 6. At the same time, the terminal side portion 5b can be folded along the intermediate crease 7 so that its surface 2a abuts (faces) against the surface 2a of the raised base side portion 5a via the second packaging material 3 (see FIGS. 3 and 4). The base crease 6 and the intermediate crease 7 are formed on the first packaging material 2 using a known method for facilitating folding, such as a fold line (crease), half cut, lead crease, or perforation.

[0020] The seat portion 4 has a through hole 9 formed on each of the four sides 4a, extending at least between an imaginary first line L1 along the base line 6 and an imaginary second line L2 positioned closer to the center of the seat portion 4, and which allows the insertion portion 8 formed in the terminal side portion 5b to be inserted together with a portion 3a of the second packaging material 3 positioned on the surface 2a of the first packaging material 2 in the folded state.

[0021] In the illustrated example, the first packaging material 2 is valley-folded on its surface 2a side at the base line 6 to raise the base side portion 5a against the seat portion 4, and then valley-folded at the intermediate line 7 to fold back the terminal side portion 5b.

[0022] The side surface portion 5 has an outline made up of a base line 6, a terminal edge portion 5c that is opposite the base line 6 and parallel to the base line 6, and a pair of side edges 5d that extend between the base line 6 and the terminal edge portion 5c. An intermediate line 7 that is parallel to both the base line 6 and the terminal edge portion 5c is provided between them, and this intermediate line 7 divides the side surface portion 5 in half, left and right, in the side surface portions 5 located on the left and right in Figure 6, and up and down, in the side surface portions 5 located on the top and bottom in Figure 6. In the illustrated example, in the side portions 5 located at the top and bottom of Figure 6, the side edges 5d of the side portions 5 are inclined in the direction of reducing the width of the base side portion 5a as they approach the intermediate line 7 in the base side portion 5a.

[0023] Terminal edge 5c has a tab-like protruding portion at the midpoint in its length direction, which functions as the insertion portion 8. Insertion portion 8 has a terminal end 8a parallel to intermediate crease 7 and an inclined side edge 8b that gradually reduces the width of insertion portion 8 as it approaches terminal end 8a.

[0024] On the other hand, the through hole 9 is formed at a position directly below the insertion portion 8 when the terminal side portion 5b is folded back as described above. The through hole 9 has a slot shape that continues in a direction along the first line segment L1 and has a length that is sufficient to receive the insertion portion 8. In the illustrated example, the through hole 9 is formed between the second line segment L2 and an imaginary third line segment L3 that is positioned closer to the middle ruled line 7 than the first line segment L1, and a portion of the base side portion 5a of the side surface portion 5 is cut out between the first line segment L1 and the third line segment L3.

[0025] Furthermore, the distance D1 between the end 8a of the insertion portion 8 and the intermediate crease 7 is slightly larger than the distance D2 between the first line segment L1 and the intermediate crease 7 (see FIG. 6). Meanwhile, the distance D1' between the portion of the terminal edge 4a other than the insertion portion 8 and the intermediate crease 7 is smaller than the distance D2 between the first line segment L1 and the intermediate crease 7 by an amount equivalent to the thickness of the first packaging material 2. This allows the end of the insertion portion 8 to come into contact with the surface 2a of the seat portion 4 near the through hole 9, causing the seat portion 4 to bend slightly, when the terminal side portion 5b is folded back as described above, allowing the insertion portion 8 to be inserted into the through hole 9. When the insertion portion 8 is inserted into the through hole 9, the seat portion 4 bends back. Furthermore, when the base-side portion 5a is folded, the hole edge 9a on the second line segment L2 of the through-hole 9 abuts against the end 8a so as to prevent the insertion portion 8 from moving about the intermediate crease 7. That is, the width between the first line segment L1 and the second line segment L2 of the through-hole 9 is determined so that such abutment occurs. This allows the insertion portion 8 to remain inserted into the through hole 9.

[0026] According to this configuration, the item M can be packaged in the following manner. First, the item M to be packed is placed on the seat portion 4 of the first packaging material 2 (FIG. 1). Next, the second packaging material 3 is placed on top of the first packaging material 2 with the article M placed on the seat portion 4. Next, the base portions 5a of the side portions 5 connected to the four side portions 4a of the seat portion 4 are raised up relative to the seat portion 4. In the illustrated example, the second packaging material 3 is large enough to cover the entire first packaging material 2 in the unfolded state, so the base portions 5a of the side portions 5 connected to the four side portions 4a of the seat portion 4 are raised up relative to the seat portion 4 together with the first packaging material 2. Next, the terminal side portion 5b of the side surface portion 5 that has been raised as described above is folded in as described above, and the insertion portion 8 is inserted into the through-hole 9 together with the portion 3a of the second packaging material 3. More specifically, the insertion portion 8 is inserted into the through-hole 9 together with the portion 3a of the second packaging material 3 that is positioned above the through-hole 9 on the surface 2a of the first packaging material 2. This makes it possible to apply tension to the second packaging material 3 between the item M to be packaged and the insertion portion 8 (FIGS. 2 to 4). Since the side surface portions 5 are formed on each of the four sides 4a of the seat portion 4, by folding the side surface portions 5 connected to each side portion 4a as described above and inserting the insertion portions 8 into the through holes 9, the first packaging material 2 can be tensioned between the packaging material 1 and each side portion 4a (FIGS. 3 and 4). This prevents the movement of the packaged item M on the seat portion 4 in a direction along the surface of the seat portion 4 and in a direction away from the seat portion 4. The packaging material 1 holding the packaged item M in this way can be placed in the outer box B with the back surface 2b of the seating surface portion 4 in contact with the bottom surface of the outer box B, typically. The packed item M is held by the packing material 1 without any roughness, and by adjusting the sizes of the packing material 1 and the outer box B so that there is as little gap as possible between them, the packed item M is accommodated and held in the outer box B by the packing material 1 with little roughness. Furthermore, the side surface portion 5 that has been raised and folded as described above can be placed in the outer box B so that it contacts the inner surface of the lid Ba of the outer box B at the position of the intermediate crease 7. In this case, it is possible to place the item M to be packed in the outer box B without it contacting the lid of the outer box B.

[0027] (Example 2) In the second example, the first packaging material 2 has an opening 10 for the passage of the second packaging material 3 in the base side portion 5a of the side surface portion 5, which is connected to the through hole 9 on the first line L1. In the illustrated example, the passage opening 10 is formed so that the opening width decreases with increasing distance from the first line segment L1. Specifically, the passage opening 10 is formed so that the contour of the opening edge is semicircular, and the curved outer side of this semicircle is formed so that it faces the intermediate ruled line 7. In this case, the second packaging material 3 can be placed on the first packaging material 2, with the object M placed on the seat portion 4, with a portion 3b of the second packaging material 3, typically a corner portion 3c of the second packaging material 3 having a rectangular outline, passing through each of the passage openings 10 formed in the four side surfaces 5. This allows the second packaging material 3 to be tightly attached to the object M on the first packaging material 2, temporarily preventing movement of the object M, before the side surfaces 5 are folded as described above and the insertion portion 8 is inserted into the through hole 9. In the second example, when the insertion portion 8 is inserted into the through hole 9, the portion 3a of the second packaging material 3 that enters the through hole 9 together with the insertion portion 8 is positioned closer to the center of the second packaging material 3 than the corner portion 3c. The configuration of the second example other than the passage opening 10 is the same or substantially the same as that of the first example, and therefore a description thereof will be omitted.

[0028] It should be noted that the present invention is not limited to the above-described embodiments, but includes all embodiments that can achieve the object of the present invention. [Explanation of symbols]

[0029] M Items to be packed B. Outer box Ba lid L1 First line segment L2 Second line segment L3 Third line segment D1 Distance D2 distance 1. Packaging materials 2. First packaging material 2a surface 2b Back side 3 2nd box packaging material 3a, 3b part 3c Corner 4-seat face 4a Hebe 4b corner 5 Side face 5a Base side part 5b End side part 5c end of the body 5d lateral part 6 Base line 7 Middle thread 8 difference 8a Duanmo 8b Sloping side edges 9. Guantong Point 9a Acupuncture point 10 Through the opening

Claims

1. a first packaging material made of a planar material having a certain rigidity, such as a corrugated cardboard sheet or paperboard; A packaging material comprising a second packaging material made of a flat, flexible material such as cloth, The first packaging material is A seat portion having a rectangular contour for the packaged item; and side portions connected to the seat portion via base creases at the four sides of the seat portion, Each of the side surfaces is divided into a base portion and a terminal portion by an intermediate crease parallel to the base crease, and the base portion can be raised by folding along the base crease, and the terminal portion can be folded so that its surface is abutted against the surface of the base portion, the surface of which is raised by folding along the intermediate crease, via the second packaging material. A packaging material in which a through hole is formed in the seat portion at least in each of the four side portions, extending between an imaginary first line segment along the base line and an imaginary second line segment positioned closer to the center of the seat portion, and which, in the folded state, allows an insertion portion formed in the terminal side portion to be inserted together with a portion of the second packaging material positioned on the surface of the first packaging material.

2. The packaging material according to claim 1 , wherein the base portion of the side surface is provided with an opening for passage of the second packaging material, the opening communicating with the through hole on the first line.

3. 2. The packaging material according to claim 1, wherein the distance between the end of the insertion portion on the side surface and the intermediate crease is slightly larger than the distance between the first line segment and the intermediate crease.

4. 2. The packaging material according to claim 1, wherein in the folded state, the edge of the through hole on the second line segment abuts against the end of the insertion portion so as to prevent movement of the insertion portion around the intermediate score line.

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