JP2013039950A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the looseness of a film for retaining an article on an article mounting plane part in a packaging box.SOLUTION: The packaging box includes an exterior part 20 and a packaging component 10 that is set in the exterior part 20. The packaging component 10 includes the article mounting plane part 11 on which the article 100 is mounted, and a pair of downward-bent parts 16 that are bent downward from the front end and the rear end of the article mounting plane part 11 with respect to the side on which the article is mounted. The film F for covering and holding the article 100 is adhered to the pair of downward-bent parts. The pair of downward-bent parts 16 include an outward-bent part 16g that is disposed outside the downward-bent parts 16, and that is bent with respect to the downward-bent parts 16.

Description

  The embodiments discussed herein relate to packaging boxes used for packaging items.

2. Description of the Related Art Conventionally, a packaging tool that is disposed in a packaging box and holds an article with a film or the like is known.
As a packing tool, a packing tool having two upper and lower films for holding an article and a block for adjusting the tension of the film is known.

  There is also known a packaging tool that has an article mounting surface portion on which an article is placed, a film that holds the article mounted on the article mounting surface portion, and a side piece that supports the article mounting surface portion at the lower end.

  Further, an article mounting surface portion on which the article is placed, a film for holding the article mounted on the article mounting surface portion, a leg portion bent downward vertically from both ends of the article mounting surface portion, and the leg portion 2. Description of the Related Art A packaging tool having a bottom portion that is vertically bent inward in parallel with an article mounting surface portion is known.

JP 2001-225873 A Utility Model Registration No. 3146554 JP 2006-248549 A

  By the way, a packaging tool having two upper and lower films for holding an article is vulnerable to an impact of free fall because the article is held only by the film. In addition, when the stretchability of the film is high, the film moves temporarily together with the article due to the impact when the packaging box is dropped, and the article hits the inner wall of the exterior portion, so that a large impact is applied to the article. Furthermore, since a block for adjusting the tension of the film and a member for supporting the block are arranged, the structure of the packaging tool is complicated.

  In addition, when the packaging device having the article mounting surface portion and the film is highly stretchable, the film temporarily moves together with the article due to the impact when the packaging box is dropped, and the article hits the inner wall of the exterior part. Thus, a large impact is applied to the article. In addition, the impact of the film is applied to the article directly by the movement of the article returning to the original due to the reaction of the film being stretched.

Furthermore, the film is tensioned to keep the article from moving, but when holding articles of various sizes, the film must be enlarged to accommodate the larger article.
It is an object of the packaging box disclosed in this specification to make it possible to adjust the slack of a film that holds an article with respect to the article mounting surface portion.

  The packaging box disclosed in the present specification includes an exterior part and a packaging tool arranged inside the exterior part. The packing tool includes an article mounting surface portion on which an article is mounted, and a pair of downward bent portions bent downward from the front end and the rear end of the article mounting surface portion with respect to the side on which the article is mounted. A film that covers and holds the article is bonded to the pair of downward bent portions. The lower bent portion has an outer bent portion that is disposed outside the lower bent portion and is bent with respect to the lower bent portion.

  According to the packaging box disclosed in the present specification, it is possible to adjust the slack of the film that holds the article with respect to the article mounting surface portion.

It is a front view by perspective drawing which shows the internal structure of the packaging box which concerns on 1st Embodiment. It is II-II sectional drawing (the 1) of FIG. It is II-II sectional drawing (the 2) of FIG. It is an expanded view which shows the packing tool in 1st Embodiment. It is a top view by perspective drawing which shows the state packaging box which opened the upper surface part of the exterior part based on 1st Embodiment. It is a graph which shows the drop test result of the packaging box which concerns on 1st Embodiment. It is a graph which shows the drop test result of the packaging box which concerns on a comparative example. It is an expanded view which shows the packing tool in 2nd Embodiment. It is an expanded view which shows the packing tool in 3rd Embodiment. It is sectional drawing which shows the packaging box which concerns on 3rd Embodiment. It is an expanded view which shows the packing tool in 4th Embodiment. It is sectional drawing which shows the packaging box which concerns on 4th Embodiment. It is a top view by perspective drawing which shows the packaging box of the state which opened the upper surface part of the exterior part based on 5th Embodiment. It is sectional drawing (the 1) which shows the packaging box which concerns on 5th Embodiment. It is sectional drawing (the 2) which shows the packaging box which concerns on 5th Embodiment. It is an expanded view which shows the pressing tool in 5th Embodiment.

Hereinafter, a packaging box according to an embodiment will be described with reference to the drawings.
<First Embodiment>
FIG. 1 is a front view according to a perspective view showing the internal structure of the packaging box 1 according to the first embodiment.
2A and 2B are II-II sectional views of FIG.
FIG. 3 is a development view showing the packing tool 10 in the first embodiment.
FIG. 4 is a plan view according to a perspective projection showing the packaging box 1 according to the first embodiment (a state in which the upper surface portion 25 of the exterior portion 20 is opened).

  As shown in FIGS. 1 and 2, the packaging box 1 includes a packaging tool 10 having outer bent portions 16 g and 17 g and an exterior portion 20. The packing tool 10 includes an article mounting surface portion 11, a pair of lifting portions 12 and 13, a pair of side surface portions 14 and 15, and a pair of downward bending portions 16 and 17, and is disposed inside the exterior portion 20. . The packaging tool 10 is formed from one base board such as a cardboard.

  The exterior portion 20 includes a left side surface portion 21, a back surface portion 22, a right side surface portion 23, a front surface portion 24, an upper surface portion 25, and a bottom surface portion 26. For example, the upper surface portion 25 functions as a lid that can be opened and closed. In addition, the upper and lower sides and right and left here correspond to the upper and lower sides and right and left in FIG. Moreover, before and after in FIG. 1 refers to the positional relationship in the depth direction of FIG. The article mounting surface portion 11 has, for example, a rectangular shape that is longer in the left-right direction than the front-rear direction shown in FIG. 1 and is maintained horizontally in the exterior portion 20. For example, an article 100 such as an electronic device is mounted on the upper surface of the article mounting surface portion 11 serving as an article mounting surface.

  The article 100 is held on the article mounting surface portion 11 by being covered on the article mounting surface portion 11 with, for example, a stretchable film F indicated by a two-dot chain line. Both ends of the film F are bonded to each other at bonding regions 16f and 17f formed on the inner surfaces of the downward bending portions 16 and 17 of the packing tool 10 to be described later. In FIG. 3, a broken line with a symbol “M” represents a mountain fold line, a broken line with a symbol “V” represents a valley fold line, and a solid line with a symbol “C” represents a cut line. As shown in FIG. 1, a gap S <b> 1 is provided between the upper surface portion 25 and the article 100 so that the article 100 does not interfere with the exterior part 20 even when a strong impact (for example, dropping) is applied to the packaging box 1. A gap S2 is provided between the bottom surface part 26 and the article 100 (the lower surface of the article mounting surface part 11).

  In addition, as shown in FIG. 4, the front end side and the rear end side of the article mounting surface portion 11 are positioned with gaps S <b> 3 and S <b> 4 between the outer packaging portion 20 in a state where the packaging tool 10 is accommodated in the outer packaging portion 20. To do. As shown in FIG. 1, the pair of lifting portions 12 and 13 are bent upward from the left and right ends of the article mounting surface portion 11 at the position of the valley fold line V shown in FIG. At the same time, the article mounting surface 11 is lifted. An angle θ formed by the pair of lifting portions 12 and 13 and the article mounting surface portion 11 is, for example, a right angle or an obtuse angle.

  The lifting parts 12 and 13 are formed with through holes 12a and 13a, respectively, into which human fingers are inserted when the packing tool 10 is taken out. These through holes 12a and 13a communicate with through holes 14a and 15a of a pair of side surface parts 14 and 15 described later.

  As shown in FIGS. 1, 2A, and 2B, the lifting portions 12 and 13 have narrow portions 12b and 13b in the lower portions continuous with the article mounting surface portion 11, and the side portions 14 and 13 The upper portions of the lifting portions 12 and 13 that are continuous with 15 are wide portions 12c and 13c that are wider than the narrow portions 12b and 13b.

  The width (the dimension in the front-rear direction) of the narrow parts 12b, 13b is the same as the dimension in the front-rear direction of the article mounting surface part 11 at the lower end of the narrow parts 12b, 13b, and the closer to the wide parts 12c, 13c there The width is reduced (see FIGS. 1, 2A, and 2B). The widths of the wide portions 12c, 13c, that is, the dimensions in the front-rear direction are substantially constant, are larger than the dimensions in the front-rear direction of the article mounting surface part 11, and are the same as the dimensions in the front-rear direction of the side surface parts 14, 15.

  The side surface parts 14 and 15 are bent at the position of the mountain fold line M from the upper ends of the lifting parts 12 and 13 to the outside, that is, to the side opposite to the article mounting surface part 11. In addition, when the packing tool 10 is accommodated in the exterior part 20, the side surfaces 14 and 15 are in surface contact with the left side surface part 21 and the right side surface part 23 (an example of two wall surfaces facing each other) of the exterior part 20, respectively. Is held in.

  As shown in FIG. 3, when the packing tool 10 is formed of corrugated cardboard or the like, the step (wave) 10 a is a fold line (valley) between the lifting portions 12 and 13 and the article mounting surface portion 11. It is desirable to extend in a direction parallel to the fold line V) and the fold line (mountain fold line M) between the side surface parts 14 and 15 and the lifting parts 12 and 13. However, depending on the strength condition, it may be desirable that the step 10a extends and folds in a direction perpendicular to the fold line (the valley fold line V and the mountain fold line M) or in an oblique direction.

  The width W, depth L, and height H of the packaging tool 10 shown in FIG. 1 are the same as or substantially the same as the internal dimensions of the exterior part 20 (for example, a few mm smaller). By setting the packing tool 10 to such dimensions, it is difficult for the packing tool 10 housed in the exterior portion 20 to rattle.

The pair of side surface portions 14 and 15 are positioned by the above-described dimensional relationship, particularly the relationship of the width W of the packing tool 10, and are held in surface contact with the left side surface portion 21 and the right side surface portion 23.
As shown in FIG. 1, the depth and height of the pair of side surface parts 14 and 15 accommodated in the exterior part 20 are the same as the depth L and height H of the packaging tool 10, that is, the interior of the exterior part 20. It is the same or substantially the same as the depth and height of the dimension. Therefore, the pair of side surface portions 14 and 15 come into contact with the bottom surface portion 26, the front surface portion 24, and the back surface portion 22 of the exterior portion 20, and rattling is suppressed.

  In addition, if the height H of the side surface parts 14 and 15 is made larger than the inner dimension of the exterior part 20, the side surface parts 14 and 15 are crushed by the upper surface part 25 and the bottom surface part 26 of the exterior part 20. The upper end of 15 can be firmly brought into contact with the exterior part 20, and the compressive strength of the packaging box 1 is also increased.

Further, the depth and height of the side surfaces 14 and 15 are preferably the same or substantially the same as the depth and height of the inner dimensions of the exterior portion 20, but are smaller than the inner dimensions of the exterior portion 20 and are In addition, the packing tool 10 may move somewhat within the exterior portion 20. In addition, by adjusting the dimensions of the side surface portions 14 and 15, the downward bending portions 16 and 17, and the exterior portion 20, the propagation order (transmission speed) of the impact force with respect to the article 100 can be adjusted.
The left side surface portion 21 and the right side surface portion 23 of the exterior portion 20 are parallel to each other. Further, the side portions 14 and 15 are bent vertically downward from the upper ends of the lifting portions 12 and 13.

  As shown in FIGS. 1, 2A, and 2B, the pair of downward bent portions 16, 17 are mountain folds pulled in the left-right direction in FIG. 3 in a direction approaching each other from the front end and the rear end of the article mounting surface portion 11. It is bent obliquely downward at the position of the line M. As shown in FIG. 3, the downward bent portions 16 and 17 include main body portions 16a and 17a, left substantially triangular portions 16b and 17b, right substantially triangular portions 16c and 17c, left end portions 16d and 17d, and right end portion 16e. , 17e, adhesive regions 16f, 17f, and outer bent portions 16g, 17g. The dimensions in the left-right direction of the main body parts 16a, 17a are the same as the dimensions in the left-right direction of the article mounting surface part 11 at the upper end, and become smaller from there.

  The left substantially triangular portions 16b and 17b and the right substantially triangular portions 16c and 17c have a substantially triangular shape, and the main body portions 16a and 17a and the left substantially triangular portion in a direction away from the left and right ends of the main body portions 16a and 17a. It is bent obliquely upward at the position of the mountain fold line M between 16b and 17b.

  The left end portions 16d and 17d are bent upward at the position of the mountain fold line M between the left substantially triangular portions 16b and 17b. Similarly, the right end portions 16e and 17e are bent upward at a position of a mountain fold line M between the right triangular portions 16c and 17c. The bent left end portions 16d and 17d and right end portions 16e and 17e are inserted between the lifting portions 12 and 13 and the side surface portions 14 and 15, respectively. Note that the left end portions 16d and 17d and the right end portions 16e and 17e are also bent at the position of the mountain fold line M between the lifting portions 12 and 13.

  The outer bent portions 16g and 17g are located outside the main body portions 16a and 17a of the lower bent portions 16 and 17, that is, on the front side of the lower bent portion 16 on the front end side and on the rear side of the lower bent portion 17 on the rear end side. , And is bent at a position of a valley fold line V between the body portion 17a.

  As shown in FIG. 2A, FIG. 2B, and FIG. 3, the film F is adhere | attached on the surface inside the outer side bending parts 16g and 17g. The film F can be slackened between the front end / rear end of the article mounting surface 11 or the article 100 and the lower ends of the outer bent portions 16g and 17g. Therefore, the slackness of the film F is adjusted according to the angle at which the outer bent portions 16g and 17g are bent or the outer bent portions 16g and 17g are bent. In addition, the film F is adhere | attached in the state by which the packing tool 10 was expand | deployed, as shown in FIG.

  As shown in FIG. 2B, the outer bent portions 16g and 17g have a plurality of different bending angles between the state (P0) parallel to the main body portions 16a and 17a of the lower bent portions 16 and 17 and the main body portions 16a and 17a. (P1, P2). When the article 100 to be mounted is relatively small, the bending angle between the main body parts 16a and 17a and the outer bent parts 16g and 17g can be increased as shown in FIG. 2A when the article is mounted. On the other hand, when the article 100 to be mounted is relatively large, the bending angle between the main body parts 16a and 17a and the outer bent parts 16g and 17g is set small as shown in FIG.

  Then, by adjusting the folding angle between the main body portions 16a and 17a and the outer bent portions 16g and 17g so that the film F is stretched, the film F can be appropriately adjusted regardless of the size of the article to be mounted. It can be stretched.

  When adjusting the slackness of the film F, the lower bent portions 16 and 17 may be bent with respect to the article mounting surface portion 11 to adjust the bending angle between the lower bent portions 16 and 17 and the article mounting surface portion 11. .

  The outer bent portions 16g and 17g are located at the lower ends of the lower bent portions 16 and 17. In the state of FIG. 2A or 2B, the outer bent portions 16g and 17g do not contact the bottom surface portion 26 of the exterior portion 20, but the outer bent portions 16g and 17g, so that the outer bent portions 16g and 17g and the bottom surface portion 26 contact each other. You may make it bend 17g.

  In addition, the test regarding the buffering performance of the packaging box 1 is, for example, in the case of a package of 10 kg or less, a free drop test from a height of 80 cm with respect to one surface of the three corners of the packaging box 1 (for example, JIS Z 0200). It is good to do. FIG. 5 shows an example of the result of a drop test.

  FIG. 5A shows an example of the result of a drop test when the packaging box according to the present embodiment is used. In this drop test, the weight of the article 100 is 1.0 kg. In the example of FIG. 5A, the falling direction of the packaging box is defined as corner (1), short ridge (2) continuous to the corner, middle ridge (3), long ridge (4), front surface (5), rear surface (6), A drop test is performed on 10 types of left side surface (7), right side surface (8), bottom surface (9), and top surface (10). As a result of the fall result, the maximum value of the impact applied to the packaging box according to the present embodiment was 57.84 [G].

  On the other hand, FIG. 5B shows the drop test result of the packaging box by a comparative example. In FIG. 5B, an article mounting surface portion on which the article is placed, a leg portion bent vertically downward from both ends of the article mounting surface portion, and a bottom bent inwardly in parallel to the article mounting surface portion perpendicularly from the leg portion. The test was conducted under the same conditions as in FIG. 5A using a packaging tool of the same size having a portion. As a result, the maximum value of the applied impact was 133.7 [G].

Thereby, in the packing tool 10 of this embodiment, it turned out that a buffering performance can be improved by the lifting parts 12 and 13 and the side parts 14 and 15.
The exterior portion 20 is simply shown in FIGS. 1, 2A and 2B, but as shown in FIG. 4, the left side surface portion 21 and the right side surface portion 23 (an example of two wall surfaces facing each other) and the front surface portion 24. Has a double structure.

  Specifically, the left side surface portion 21 has an outer side surface portion 21a and an inner side surface portion 21b bent downward from the upper end of the outer side surface portion 21a. The right side surface portion 23 also has an outer side surface portion 23a and an inner side surface portion 23b. The front portion 24 similarly has an outer surface portion 24a and an inner surface portion 24b.

  Between the left side surface portion 21 and the front surface portion 24 and between the right side surface portion 23 and the front surface portion 24, gaps are formed that serve as guide portions G into which the pair of side surface portions 14 and 15 are inserted. The side surface portions 14 and 15 are not only positioned within the exterior portion 20 due to the dimensional relationship (particularly the width W) of the packing tool 10 described above, but are also positioned by the guide portion G, and the left side surface portion 21 and the right side surface portion 23 are positioned. The surface is kept in surface contact.

  As shown in FIG. 4, the front portion 24 is formed with a trapezoidal insertion base end portion 24c with left and right sides cut off at the center of the upper end of the outer surface portion 24a. The insertion base end portion 24c is folded back at the bottom, that is, the front side.

  At the distal end of the insertion base end portion 24c, an insertion distal end portion 24d that is folded back to the inner side of the exterior portion 20 is formed. A convex portion (not shown in FIG. 4) of the upper surface portion 25 is inserted into the insertion port 24f formed in the folded portion between the outer side surface portion 24a and the inner side surface portion 24b. An insertion port is formed in the convex portion of the upper surface portion 25, and the insertion tip portion 24d is inserted into this insertion port.

  A semicircular knob portion 24e is formed at the center of the upper end of the insertion base end portion 24c. The knob portion 24e has a linear portion at the upper end, which is a folded portion between the insertion base end portion 24c and the insertion distal end portion 24d, and the arc portion is cut away from the folding direction of the insertion distal end portion 24d. It protrudes outside (front side).

  When the article 100 is taken out from the packing box 1, the insertion tip 24d of the front portion 24 is pulled out from the convex portion of the upper surface portion 25 by pulling the knob portion 24e of the front portion 24 shown in FIG. . And the convex part of the upper surface part 25 is pulled out from the insertion port 24f of the front part 24.

  Next, when a package such as a document is stored above the article 100, the package is first taken out. And the packing tool 10 is taken out from the exterior part 20 by putting a person's finger in the through-holes 12a and 13a of the lifting parts 12 and 13 and the through-holes 14a and 15a of the side parts 14 and 15 and lifting them.

  And while opening the lower end side of the side parts 14 and 15 away from each other, and opening the lower end side of the downward bending parts 16 and 17 away from each other, the packing tool 10 is flat as shown in the developed view of FIG. To spread. Thereby, the tension of the film F is eliminated and the article 100 can be taken out.

  In the first embodiment described above, the packing tool 10 of the packaging box 1 has a pair of lower bent portions 16 bent downward from the front end and the rear end of the article mounting surface portion 11 with respect to the side on which the article 100 is mounted. , 17. A film F that covers and holds the article 100 is bonded to the pair of downward bent portions 16 and 17. Moreover, the downward bending parts 16 and 17 have the outer bending parts 16g and 17g bent outward from this downward bending part. Therefore, the bending of the film F is adjusted by bending the outer bent portions 16g and 17g.

  Therefore, according to this embodiment, it is possible to adjust the slackness of the film F that holds the article 100 with respect to the article mounting surface portion 11 with a simple configuration.

  Moreover, as shown to FIG. 2A, in 1st Embodiment, the downward bending parts 16 and 17 are bend | folded diagonally downward in the direction which mutually approaches from the front end and rear end of the article mounting surface part 11. FIG. Therefore, it becomes easy to adjust the bending of the film F by adjusting the lengths of the outer bent portions 16g and 17g. Even when the lower bent portions 16 and 17 come into contact with the bottom surface portion 26 of the exterior portion 20 due to an impact when dropped, the outer bent portions 16g and 17g prevent the lower bent portions 16 and 17 from being bent and bent. Along with the bent portions 16 and 17, the impact force vertically above can be dispersed.

  As a means for more absorbing the impact of the bottom surface drop, as shown in FIG. 2B, a cushioning material 70 (for example, a foam material is formed on the bag) between the outer bent portions 16g, 17g and the bottom surface portion 26 of the exterior portion 20. There can also be a method of use in which a plurality of general-purpose cushioning materials are added.

  Further, in the present embodiment, the packing tool 10 is folded upward from the left end and the right end of the article mounting surface portion 11 and lifts the article mounting surface portion 11, and downward from the upper ends of the pair of lifting portions. And a pair of bent side surface portions 14 and 15. Further, the pair of side surface portions 14 and 15 are held in surface contact with the two wall surfaces (the left side surface portion 21 and the right side surface portion 23) of the exterior portion 20 facing each other. Therefore, the lifting portions 12 and 13 can be firmly supported by the pair of side surface portions 14 and 15 in surface contact with the left side surface portion 21 and the right side surface portion 23 of the exterior portion 20.

  Therefore, the cushioning performance of the packing box 1 can be enhanced with a simple configuration of only the packing tool 10 and the exterior box 20. And the cardboard used for the packaging box 1 and the film material can be thinned and the exterior box 20 can be downsized. In addition, depending on whether or not the outer bent portions 16g and 17g are bent, products of different sizes can be shared by a single packing box.

Second Embodiment
FIG. 6 is a development view showing the packing tool 2 in the second embodiment. In the present embodiment, the step (wave) 10a is a fold line (valley fold line V) between the lifting portions 12 and 13 and the article mounting surface portion 11, and the side portions 14 and 15 and the lifting portions 12 and 13 as well. It is desirable to extend in a direction parallel to the fold line between the fold line (mountain fold line M), but depending on the strength condition, the direction perpendicular to the fold line (valley fold line V, mountain fold line M), or It may be desirable to extend in an oblique direction and fold.

  As shown in FIG. 6 of the present embodiment, a plurality of fold lines (V11 to V14, V21 to V24) of the outer bent portions 16g and 17g are formed in the lower bent portions 16 and 17, respectively. Therefore, depending on the size of the product to be mounted, appropriate outer bent portions 16g and 17g can be selected, and the slackness of the film F can be adjusted. The fold lines (V11 to V14, V21 to V24) are preferably parallel to each other.

  For example, even if the article to be packed (the size of the outer periphery of the article 100 to be inserted) is different, the film F can be provided with the necessary slack by folding the fold lines (V11 to V14, V21 to V24). it can.

  Then, due to the sagging of the film F, the front opening (the gap of the film F) into which the article 100 is inserted can be arbitrarily changed. Surfaces folded along the above-described fold lines (V11 to V14, V21 to V24) become outer bent portions 16g and 17g, and the ends of the outer bent portions 16g and 17g have a joint portion between the film and F, and the lower bent portions 16 and 16g. 17 and the outer folds 16g, 17g (a plurality of fold lines (V11 to V14, V21 to V24)) are provided with valley fold lines.

The fold line of the valley fold is a force that inserts the article 100 into the film F and tensions the film F, and the pair of outer bent portions 16g and 17g bends in a direction of opening to the outside.
The film F where the outer bent portions 16g and 17g are bent into the "K" shape does not follow the surfaces of the lower bent portions 16 and 17 and the outer bent portions 16g and 17g, but at the tips of the outer bent portions 16g and 17g. A straight line is formed from the joining region toward the boundary angle between the downward bent portions 16 and 17 and the article mounting surface portion 11.

  By this action, a triangular cross section is formed by the downward bent portions 16 and 17, the outer bent portions 16 g and 17 g, and the film F, and the extra length of the film becomes slack, and a gap is generated between the packaging tool 2. To do.

  The sag length of the film F can be freely changed by folding the positions of the fold lines (V11 to V14, V21 to V24) according to the dimensions of the outer periphery of the article 100 to be packed and changing the size of the gap. In the present embodiment, the ends of the outer bent portions 16g and 17g are wound, and the film F is bonded to the bonding areas 16f and 17f on the back surface. Therefore, the film F can be loosened between the outer bent portions 16g, 17g and the article mounting surface portion 11, or between the outer bent portions 16g, 17g and the article 100, and the slackness of the film F can be adjusted. .

<Third Embodiment>
FIG. 7 is a development view showing the packing tool 30 according to the third embodiment. In the present embodiment, the step (wave) 10a is a fold line (valley fold line V) between the lifting portions 12 and 13 and the article mounting surface portion 11, and the side portions 14 and 15 and the lifting portions 12 and 13 as well. It is desirable to extend in a direction parallel to the fold line between the fold line (mountain fold line M), but depending on the strength condition, the direction perpendicular to the fold line (valley fold line V, mountain fold line M), or It may be desirable to extend in an oblique direction and fold.

FIG. 8 is a cross-sectional view of the packaging box according to the third embodiment.
In this embodiment, a pair of downward bending parts 36 and 37 are different from the above-mentioned first embodiment. Therefore, the same reference numerals are assigned to the common components in the drawings, and description thereof is omitted.

  The pair of downward bent portions 36, 37 includes a main body portion 36a, 37a, a left substantially triangular portion 36b, 37b, a right substantially triangular portion 36c, 37c, a left end portion 36d, 37d, a right end portion 36e, 37e, and an outer side. Bending portions 36g and 37g.

Moreover, the downward bending parts 36 and 37 have adhesion area | regions 36f and 37f and inner side bending parts 36h and 37h.
The inner bent portions 36h and 37h are bent at the position of the mountain fold line M between 36g and 37g on the opposite side of the outer bent portion from the tips of the outer bent portions 36g and 37g.

Adhesive regions 36f and 37f to which the film F is adhered are provided on the outer surfaces of the inner bent portions 36h and 37h.
The slackness of the film F is adjusted not only by the bending angle of the outer bent portions 36g and 37g but also by the bending angle of the inner bent portions 36h and 37h.

According to the third embodiment described above, it is possible to adjust the slackness of the film F that holds the article 100 with respect to the article mounting surface portion 11 with a simple configuration.
In the present embodiment, the pair of downward bent portions 36 and 37 includes inner bent portions 36h and 37h that are bent from the outer bent portions 36g and 37g to the side opposite to the outer bent portions 36g and 37g. Therefore, the slack of the film F can be adjusted.

  In the present embodiment, the film F is bonded to the outer surfaces of the inner bent portions 36h and 37h (adhesion regions 36f and 37f). Therefore, since the film F is located on one surface side of the packing tool 10, the amount of the film F can be reduced as compared with the case where the film F is bonded to the inner surface of the downward bending portions 36 and 37. The slackness of the film F can be adjusted with a simple configuration.

<Fourth embodiment>
FIG. 9 is a development view showing the packing tool 40 in the fourth embodiment. In the present embodiment, the step (wave) 10a is a fold line (valley fold line V) between the lifting portions 12 and 13 and the article mounting surface portion 11, and the side portions 14 and 15 and the lifting portions 12 and 13 as well. It is desirable to extend in a direction parallel to the fold line between the fold line (mountain fold line M), but depending on the strength condition, the direction perpendicular to the fold line (valley fold line V, mountain fold line M), or It may be desirable to extend in an oblique direction and fold.

FIG. 10 is a cross-sectional view showing a packaging box according to the fourth embodiment.
In this embodiment, a pair of downward bending parts 46 and 47 is different from the above-mentioned first embodiment. Therefore, the same reference numerals are given to the common components in the drawings, and description thereof is omitted.

  The pair of downward bent portions 46 and 47 are bonded to the main body portions 46a and 47a, the left substantially triangular portions 46b and 47b, the right substantially triangular portions 46c and 47c, the left end portions 46d and 47d, and the right end portions 46e and 47e. It has the area | regions 46f and 47f and the outer side bending parts 46g and 47g.

  Further, the pair of downward bent portions 46 and 47 have angle restricting bent pieces 46i, 46j, 47i and 47j. The angle restricting bent pieces 46i, 46j, 47i, 47j are formed by being bent toward the article mounting surface portion 11 from the both ends of the main body portions 46a, 47a at the position of the mountain fold line M between the main body portions 46a, 47a. The

  The angle-regulated bending pieces 46i, 46j, 47i, 47j regulate the bending angle of the lower bending portions 46, 47 so that the bending angle of the main body portions 46a, 47a of the lower bending portions 46, 47 does not become a predetermined value or less. doing.

  FIG. 10 shows a state in which the angle restricting bent pieces 46i, 46j, 47i, 47j restrict the bending angle of the lower bent portions 46, 47. Angle-regulated bent pieces 46i, 46j, 47i, 47j bent upward from the main body portions 46a, 47a in FIG. 10 are in contact with the back surface of the article mounting surface portion 11. Thereby, the bending angle of the main body part with respect to the article mounting surface part 11 is regulated.

  The angle-regulated bending pieces 46i, 46j, 47i, 47j may be formed by cutting the lower bending portions 46, 47, or formed by cutting the article mounting surface portion 11. You may make it do.

According to the fourth embodiment described above, the slack of the film F that holds the article 100 with respect to the article mounting surface portion 11 can be adjusted with a simple configuration.
Moreover, the packing tool of this embodiment has angle regulation bending pieces 46i, 46j, 47i, and 47j which regulate the bending angle of a pair of downward bending parts 46 and 47. As shown in FIG. Therefore, the slack of the film F can be adjusted.

  In the present embodiment, the angle restricting bent pieces 46i, 46j, 47i, 47j are formed by being bent from the lower bent portions 46, 47 toward the article mounting surface portion 11. Therefore, the slackness of the film F can be adjusted with a simple configuration.

<Fifth Embodiment>
FIG. 11 is a perspective view according to a perspective view showing the packaging box 51 in a state where the upper surface portion 25 of the exterior portion 20 is opened according to the fifth embodiment.

12A and 12B are side cross-sectional views of the packaging box 51 according to the fifth embodiment.
FIG. 13 is a development view showing the presser 52 in the fifth embodiment.
In this embodiment, the packaging box 51 is different from the first embodiment in that it includes a pressing tool 52 in addition to the packing tool 10 of the first embodiment. Therefore, the same reference numerals are given to the common components in the drawings, and description thereof is omitted.

  The presser 52 includes a planar portion 52a, rising portions 52b and 52c, folded portions 52d and 52e, and a plurality of (four in this embodiment) that are parallel to the article mounting surface portion 11 in a state of being accommodated in the exterior portion. ), And is disposed between the article 100 and the exterior part 20. Note that the convex portion 52f does not necessarily have to be plural.

  The rising portions 52b and 52c are formed so as to rise vertically from the front end and the rear end of the flat portion 52a. The folded portions 52d and 52e are bent vertically from the upper ends of the rising portions 52b and 52c as shown in FIG. 12A so as to approach each other.

  The folded portions 52d and 52e can also be formed so that a curved surface is formed between the upper ends of the rising portions 52b and 52c as shown in FIG. 12B. By forming the rising portion in the shape of FIG. 12B, the impact from the upper surface portion 25 can be absorbed more.

  The convex portion 52f is formed by cutting the flat surface portion 52a, and is bent downward. As shown in FIG. 12, the convex part 52f presses the periphery of the article 100, for example. Thus, the pressing tool 52 can suppress the movement of the article 100 on the article mounting surface portion 11.

Also according to the fifth embodiment described above, it is possible to adjust the slackness of the film F that holds the article 100 with respect to the article mounting surface portion 11 with a simple configuration.
Moreover, in this embodiment, the pressing tool 52 has the convex part 52f formed by the notch put into the plane part 52a, and was bent below. Therefore, the buffering performance of the packaging box 51 can be further enhanced with a simple configuration.

  As shown in FIG. 13, when the presser 52 is formed of corrugated cardboard or the like, the step 52g is a fold line (valley fold V) from the flat portion 52a of the rising portions 52b and 52c, and a turn-up portion. Although it is desirable to extend in the left-right direction parallel to the fold line (mountain fold M) from the rising portions 52b and 52c of 52d and 52e, depending on the strength condition, the above fold line (valley fold line V, mountain fold line M) It may be desirable to extend and fold in a direction perpendicular to) or in an oblique direction.

DESCRIPTION OF SYMBOLS 1 Packing box 10 Packing tool 11 Article mounting surface part 12, 13 Lifting part 14, 15 Side face part 16, 17 Lower bending part 20 Exterior part 36, 37 Lower bending part 52 Presser 70 Buffering material 100 Article F Film

Claims (10)

An exterior part,
A packing tool disposed inside the exterior part,
The packing device includes an article mounting surface portion on which an article is mounted, and a pair of downward bent portions bent downward from a front end and a rear end of the article mounting surface portion with respect to a side on which the article is mounted,
A film that covers and holds the article is bonded to the pair of downward bent portions,
The lower bent portion has an outer bent portion disposed outside the lower bent portion and bent with respect to the lower bent portion.
A packaging box characterized by that.   The packing tool includes a pair of lifting portions bent upward from the left end and the right end of the article mounting surface portion, and a pair of side portions bent downward from the upper ends of the pair of lifting portions. The packaging box according to claim 1.   The packaging box according to claim 2, wherein the pair of side surfaces are held in surface contact with two opposing wall surfaces of the exterior portion.   2. The packaging box according to claim 1, wherein the pair of downward bent portions further includes an inner bent portion that is bent from the outer bent portion to a side opposite to the outer bent portion.   The packaging box according to claim 1, wherein a plurality of fold lines of the outer bent portion are formed in the pair of lower bent portions.   6. The packaging box according to claim 5, wherein the folding lines are parallel to each other.   The packaging box according to claim 1, further comprising an angle regulating bent piece for regulating a bending angle of the pair of downward bent portions.   The packaging box according to claim 7, wherein the angle restricting bent piece is formed by being bent from the lower bent portion toward the article mounting surface portion.   The packaging box according to claim 1, wherein the downward bending portion is bent obliquely downward in a direction approaching each other from a front end and a rear end of the article mounting surface portion. Further comprising a pressing tool disposed on the upper part of the article,
The presser has a flat portion parallel to the article mounting surface portion, and a convex portion formed by cutting in the flat portion and bent downward.
The packaging box according to claim 1.