JP7378722B2 - Internal board and packaging box - Google Patents

Description

The present invention relates to an internal board and a packaging box.

An internal board with a presser sheet attached to a baseboard is widely known as an internal member to prevent goods from moving and being damaged in a packaging box during transportation. .
An example of an internal board as described above includes a baseboard and a stretchable film, opposite edges of the film are adhered to the top surface of the baseboard, and an article is placed between the top surface and the film. Some have an insertable storage section.

In such an internal board, an article is inserted into the storage section through the open end of the baseboard and the film, and both ends of the baseboard to which the film is attached are bent outward together with the film to pull the film. The tension of this film presses the article against the baseboard and prevents the article from moving within the storage section.
Such an internal board is formed to match the internal dimensions of the outer box so that it does not move within the outer box.

JP2016-64860A

Conventional internal boards were firmly fixed inside the outer box to prevent shock from being caused by the internal board moving within the outer box and hitting the packaged items, so if the package was dropped, etc., the outer box would receive a shock. There was a problem in that the impact was directly transmitted to the internal board and packaged items when
Therefore, the present invention provides an internal board having a buffering function and a packaging box equipped with this internal board.

The internal board of the present invention includes an installation board having a placing part on which an article is placed, and a holding film for fixing the article on the placing part, and the installation board includes a lower surface of the placing part. The installation part has first ends facing each other that are bent to the side, and second ends facing each other that are raised on the upper surface side of the mounting part in a direction that intersects the first ends. When the board stands up the second end through the bending line, the bending line is located at a position that can overlap in plan view at least a portion of the first end bent toward the lower surface side. A support portion that protrudes downward can be formed.
According to this configuration, the space between the placing part and the bent first end can be supported by the supporting part, and a space can be formed below the placing part.

The supporting portion of the internal board of the present invention is continuous with the bending line when raising the second end, and cuts the mounting portion toward the center between the opposing second ends. It may be formed by a missing slit.
According to this configuration, formation of the support portion and downward protrusion become easy.

The supporting portion of the internal board of the present invention forms an angle with the bending line that is the same angle as the inclination angle provided between the mounting portion and the first end portion bent toward the lower surface side. It may have an inclined side.
According to this configuration, since the inclined side of the support part matches the inclination of the first end, the support part can be firmly erected on the first end.

The intersection of the first end and the second end of the internal board of the present invention is the point at which the first end is bent toward the lower surface and the second end is raised. In some cases, it may be folded back to face the support part to form a folded part to which the support part can be fixed.
According to this configuration, the support portion can be firmly fixed between the first end portion and the folded portion.

The packaging box of the present invention includes the internal board described in any one of the above, and an outer box in which the internal board can be placed.
According to this configuration, the article can be suitably protected with the packaging box.

The length in the transverse direction of the first end of the internal board according to any one of the above of the packaging box of the present invention is from the edge of one of the first ends of the installation board to the other of the first ends of the installation board. The length may be set to 1/6 or more and less than 1/2 of the length of the end portion of 1 to the edge.
According to this configuration, it becomes easier to bend the installation board at the center between the second bent portions.

The height dimension of the second end of the second end of the internal board according to any one of the above of the packaging box of the present invention when the second end is set up, and the first end determined by the support part. The sum of the vertical dimension of the first end at the lowest inclination angle with respect to the placement part of the housing may be set to be smaller than the depth dimension of the outer box.
According to this configuration, the bent first end portion can more easily function as a cushion.

In the internal board and packaging box of the present invention, since the internal board has a buffering function, when an impact is applied to the outer box, the impact is reduced from being transmitted to the packaged product, thereby protecting the packaged product. It has the effect of being able to.

FIG. 1 is a top perspective view showing a packaging box according to an embodiment of the present invention. FIG. 2 is a plan view showing a state before assembly of an internal board according to an embodiment of the present invention. FIG. 3 is a plan view showing an assembly process of an internal board according to an embodiment of the present invention. (a) It is a top perspective view which showed the assembly process of the internal board based on one Embodiment of this invention. (b) It is a side view showing the assembly process of the internal board concerning one embodiment of the present invention. FIG. 7 is a perspective view showing another example of an internal board according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the internal board and packaging box of the present invention will be described with reference to the drawings. Note that the dimensions of each part in the figures used in the following explanation are not necessarily the same as the actual ones, and can be changed as appropriate.

As shown in FIG. 1, a packaging box 1 according to an embodiment of the present invention includes an outer box 2 and an internal board 3 arranged inside the outer box 2.

The outer box 2 has a rectangular bottom part 4, a side part 5 rising from the four sides surrounding the bottom part 4, and a lid part 6 connected to one upper end edge of the side part 5 and closing the upper end side opening 5a. are doing. Note that the lid portion 6 may be formed of a rectangular cylindrical sleeve that is inserted into a container-like member that is formed of the bottom portion 4 and four side portions 5 and is opened upward, and closes the upper end side opening portion 5a.

As shown in FIG. 2, the internal board 3 includes an installation board 7 and a flexible and stretchable holding film 8.
The installation board 7 is a flat plate member on which items to be packed (hereinafter simply referred to as "articles") are placed, and is made of paper or synthetic resin that is rigid enough to be flexible, but is not particularly limited. It is made of materials such as

The installation board 7 is formed into a substantially rectangular shape, with the four corners of a substantially rectangular plate member cut off into a substantially triangular shape with one side having a short length, as indicated by imaginary lines. The outer periphery of the installation board 7 is surrounded by a pair of opposing linear edges 7a, 7a and another pair of edges 7b, 7b.
An adhesion section 10 to which the end of the holding film 8 is attached is provided near the edge 7a. Sufficient space is ensured between the adhesion parts 10, 10 to allow articles to be placed thereon.

Further inside the adhesive portion 10 between the edges 7a, 7a, a first bending line 11 extending across the edges 7b, 7b is provided. Between the end edge 7a and the first bending line 11 is a first end 12 that includes the adhesive portion 10 and is bent toward the lower surface of the installation board 7 at the first bending line 11.

In this embodiment, the first bending line 11 extends substantially linearly in parallel to the edge 7a.
The length of the first end 12 in the transverse direction is 1/6 or more and less than 1/2 of the length from the edge 7a on one end side of the installation board 7 to the edge 7a on the other end side. It is recommended that it be set to .
This is because if the length of the first end portion 12 in the transverse direction is within the above range, it is easy to stand upright at an angle below the placement portion P.
Slits S are formed intermittently on the first bending line 11. Both ends of each slit S are slightly bent inward.

On the inside of another pair of opposing edges 7b, 7b, a substantially linear second bending line 13 extending across the edges 7a, 7a is formed. The space between the end edge 7b and the second bending line 13 constitutes a second end 14 rising from the second bending line 13.
Perforations are provided on the second folding line 13 to facilitate folding.
The first folding line 11 and the second folding line 13 are substantially perpendicular to each other, and the area surrounded by the first folding line 11, 11 and the second folding line 13, 13 has a substantially rectangular shape on which the article is placed. It constitutes a placing section P.

The second bending line 13 is located slightly inside the first bending lines 11, 11, and when the first end 12 is bent toward the lower surface side of the installation board 7, the first end 12 is It is once interrupted at a position where it is covered (or overlapped) by the holder P, and continues to a substantially triangular protruding slit 15 that bites into the placing part P. A portion surrounded by the slit 15 and an extension of the second bending line 13 constitutes a support portion 20.

The slit 15 starts from the vicinity where the second bending line 13 enters between the first bending lines 11, 11, and extends slightly toward the center of the edges 7b, 7b, toward the center of the edges 7a, 7a. It is inclined and curved toward the second fold line 13 and reaches the second fold line 13 .

The inclined side 15a of the slit 15 is preferably set at an angle of 10° or more and 45° or less with respect to the second bending line 13. In this embodiment, the inclined side 15a of the slit 15 is inclined at about 20 degrees with respect to the second bending line 13. The angle of inclination of the inclined side 15a is determined by the angle of inclination set with respect to the mounting portion P of the first end portion 12 that is folded back toward the lower surface side.

The distance of the second bending line 13 from the edge 7b varies depending on the volume of the first end 12 that is bent and supported by the support section 20 and the volume of the article that is expected to be accommodated in the placing section P. is set to That is, the second bending line 13 corresponds to the opening of the outer box 2 that is set when the internal board 3 with the second end 14 raised up is placed in the outer box 2 as shown in FIG. It is determined by the depth from 5a to the placing part P.

The first bending line 11 and the second bending line 13 intersect each other near both ends. The intersection of the first end 12 and the second end 14 is a folded portion that faces the second end 14 and the support portion 20 when the first end 12 and the second end 14 are bent. It is section 25.
The first folding line 11 is split at the outer side between the second folding lines 13, 13 so as to slightly widen from the intersection point or the vicinity of the intersection point toward the edge 7b, forming branch lines 11y, 11y.

The holding film 8 is a flexible and stretchable synthetic resin film, and is formed to be transparent or semitransparent, although it is not essential.
The holding film 8 is formed in a rectangular shape. The holding film 8 includes adhesive parts 10, 10 in the direction between the edges 7a, 7a and covers the very inner side of the edges 7a, 7a, and has a second part in an open state in the direction between the edges 7b, 7b. It substantially covers the area between the bending lines 13, 13.

This holding film 8 is pasted to the installation board 7 at the sticking part 10 so that the four corners of the holding film 8 are fixed to the installation board 7, and the upper surface between the sticking parts 10 and 10 is held firmly and under approximately tension. It is covered to prevent it from getting wet.
The area between the adhering parts 10 and 10 covered with the presser film 8 in the placing part P constitutes a storage part R for articles.

Next, a method of storing articles on the internal board 3 and its operation and function will be explained.
The first bending line 11 of the installation board 7 shown in FIG. 2 is valley-folded when viewed from above, the holding film 8 is loosened, and the article to be stored is stored from the open end of the holding film 8 (in the direction between the ends 7b and 7b). Store in section R.

Since the article has bulk, if the holding film 8 does not stretch, the article cannot be stored unless the installation board 7 is bent. However, since the holding film 8 has flexibility and extensibility, if the bulk of the article is not too large, the holding part P will not bend and the holding part P will be kept in a substantially flat state by being stretched. can be stored in the storage section R. In addition, by preparing a plurality of internal boards 3 in which the tension or loosening of the holding film 8 is set according to the volume of the article to be stored, it is possible to suitably correspond to the bulk or size of the article.

Then, as shown in FIG. 3, the installation board 7 is bent into a mountain fold along the first bending line 11, and the first end 12 is overlapped with the lower surface of the mounting section P.
When the first end portion 12 is folded toward the lower surface of the receiver P in this manner, the holding film 8 is further expanded and rotated to the lower surface of the receiver P between the adhesive sections 10 and 10 shown in FIG. Sufficient tension is applied, and the article M can be accommodated while being pressed against the placement section P.

The first end 12 substantially overlaps the lower surface of the receiver P, or is bent at a certain angle with respect to the receiver P due to the tension of the holding film 8 containing the article. In this state, the edge 7a of the first end portion 12 is located below the placement portion P at a point that approximately divides the first bending line 11 into three equal parts.

As shown in FIG. 4(a), the support portion 20 formed on one side of the second end portion 14 is lightly pressed down, and as shown in FIG. 4(b), the second end portion 14 is The folding line 13 is bent to stand up approximately at right angles to the mounting portion P.

Then, the branch line 11y separated on the second end 14 is bent, and as shown in FIG. 1, the branch line 11y creates a narrow triangular space K shown in FIG. It is formed. This triangular space K is designed to prevent the impact applied to the outer box 2 shown in FIG. 1 from being directly transmitted to the internal board 3.

As shown in FIG. 4B, the support portion 20 protrudes 180° to the opposite side to the second end 14 at the same time as the second end 14 rises. That is, the support portion 20 protrudes downward.

The support part 20 projects downward to provide support between the first end part 12 and the placing part P, and forms a space therebetween to alleviate shocks that may be applied to the internal board 3. There is.
The internal board 3, which is set to store articles and store them by folding the first end 12 and the second end 14, has an external board 3 that is large enough to accommodate the loading section P as shown in FIG. Place it in Box 2 and complete the packaging.

The internal board 3 assembled as described above is stored in the outer box 2 with a space formed below the mounting part P, so if the outer box 2 is dropped, etc. When an external force is applied to 2, the mounting portion P can bend downward to alleviate the impact.

In particular, the internal board 3 stands with the first end 12 inclined with respect to the placing part P. That is, the edge 7a of the first end portion 12 is located at the center of the placing portion P and dividing the placing portion P into three equal parts. Therefore, compared to the case where the first end 12 hangs down with respect to the receiver P, the vicinity of the first bending line 11 of the receiver P is closer to the center between the second ends 14, 14. It is easy to bend.

On the other hand, the edge 7b of the second end 14 is set so as to just hit the lid 6 of the outer box 2 when the second end 14 is raised. Therefore, even if the first end portion 12 is installed in the outer box 2 so as to be inclined with respect to the mounting portion P, the internal board 3 can be prevented from rotating.

This has the effect that the internal board 3 has a higher buffering function than when the first end 12 is bent at a substantially right angle to the platform P to form a space below the platform P. play.
On the other hand, near both ends of the second end 14 in the longitudinal direction, support portions 20 protrude toward the first end 12 . Therefore, the first end 12, which is folded and inclined toward the center of the placing part P, is not flattened at both ends in the longitudinal direction to be more flat than the protruding length of the support part 20, and the support part 20 Can maintain a space of protruding length. Therefore, it is possible to maintain the buffering function of the internal board 3 well.

Furthermore, since the inclined side 15a of the support part 20 and the inclination angle of the first end part 12 are made to match, the effect that the inclination of the first end part 12 can be firmly supported by the support part 20 is achieved. play.

Further, as shown in FIG. 4(b), when the second end 14 is raised on the placing part P, the back side of the second end 14 is moved along with the first end 12. Since it has a folded part 25 that is folded back, the supporting part 20 can be firmly fixed at the boundary between this folded part 25 and the first end 12 (that is, on the second folding line 13). be effective.

In the above embodiment, the support part 20 has a substantially chevron-shaped slit 15 formed on the opposite side of the second end part 14 across the second bending line 13 before assembly, and the second Although the support portion 20 is formed by bending along the bend line 13, the formation of the support portion 20 is not limited to this structure. That is, when the second end 14 is raised relative to the placing part P, the support part 20 protrudes downward from above the second bending line 13 and bends the inclination of the first end 12 to a predetermined level. Any configuration may be used as long as it can be maintained at an angle.

Specifically, for example, as shown in FIG. 5, a slit 30 is formed on the second bending line 13 at a position that can be covered by the first end 12 in plan view, and the second end 14 is A separately prepared support plate or support piece 31 may be inserted when the system is started up. In this case, the support piece 31 preferably has a protruding part 31a that protrudes below the placing part P, and an engaging part 31b that is formed to have a wider width than the slit 30 and is engaged with the slit 30.

Further, the support portion 20 may have any shape as long as the inclination of the first end portion 12 can be maintained.

Further, the height dimension of the second end 14 when the second end 14 is started up, and the first and the vertical dimension of the end portion 12 (hereinafter referred to as the minimum installation board height) may be set smaller than the depth dimension of the outer box 2.

In this case, the difference between the minimum installation board height and the depth dimension of the outer box 2 is determined by the tension of the holding film 8 and the bending stiffness of the first bending line 11, so that the first end 12 can bend itself. The difference between the vertical dimension in a maintainable state and the vertical dimension of the first end 12 in a state supported by the support section 20 may be smaller than or equal to the difference.

The difference between the minimum installed board height and the depth dimension of the outer box 2 is the vertical dimension when the first end 12 is able to maintain its bent state by itself and the first end when the first end 12 is supported by the support section 20. If the difference is larger than the vertical dimension of the end portion 12, a gap will be created between the internal board 3 and the inside of the outer box 2 when the first end portion 12 is returned to its maximum position from the bent state. In other words, since the internal board 3 is not urged inside the outer box 2 and can move, the internal board 3 becomes unstable within the outer box 2.

The difference between the minimum installed board height and the depth dimension of the outer box 2 is the vertical dimension when the first end 12 is able to maintain its bent state by itself and the first end when the first end 12 is supported by the support section 20. If the difference is smaller than the vertical dimension of the end portion 12, an elastic force will act to return the first end portion 12 from the bent state to a flat state within the outer box 2, causing the inner board 3 to close to the outer box 2. It is in a state where it is energized.

Therefore, the bent first end portion 12 exhibits a function similar to a spring within the outer box 2, and has the effect that the articles stored in the internal board 3 can be more effectively protected from external forces. . On the other hand, the support of the support portion 20 has the effect of preventing the first end portion 12 from being completely crushed by impact and hitting the placement portion P.

1 Packaging box 2 Outer box 3 Internal board 7 Installation board 8 Holding film 7a Edge 7b Edge 11 First fold line 12 First edge 13 Second fold line 14 Second edge 15 Slit 15a Incline Side 20 Support part 25 Folded part 31 Support plate or support piece (support part)
M Article P Placement part

Claims (6)

comprising an installation board having a placing part on which the article is placed, and a holding film for fixing the article on the placing part,
The installation board includes first ends facing each other that are bent toward the lower surface of the placement part;
having second ends facing each other raised on the upper surface side of the placement part in a direction crossing the first end;
The installation board is bent at a position where it can overlap, in plan view, at least a portion of the first end bent toward the lower surface when the second end is stood up along the bending line. It is possible to form a support part that protrudes below the line,
The support portion is continuous with the bending line when raising the second end portion and is formed by a slit that cuts out the placement portion toward the center between the opposing second end portions. Setup board. 2. The support portion has an inclined side whose angle with the bending line is the same as an angle of inclination provided between the mounting portion and the first end portion bent toward the lower surface side. Internal board described in. The intersection of the first end and the second end faces the support part when the first end is bent toward the lower surface side and when the second end is raised. The internal board according to claim 1 or 2 , wherein the internal board is folded back so as to form a folded part to which the supporting part can be fixed. A packaging box comprising the internal board according to claim 1 and an outer box in which the internal board can be placed. The length in the transverse direction of the first end of the internal board according to any one of claims 1 to 3 is from the edge of one of the first ends of the installation board to the other of the first ends of the installation board. 5. The packaging box according to claim 4, wherein the length is set to 1/6 or more and less than 1/2 of the length of the first end to the edge. A height dimension of the second end of the internal board according to any one of claims 1 to 3 when the second end is started up, and the first end determined by the support part. The packaging box according to claim 4 or 5 , wherein the sum of the vertical dimension of the first end at the lowest inclination angle with respect to the mounting part is set smaller than the depth dimension of the outer box. .

Images