JP6863100B2 - Packaging box - Google Patents

Description

The present invention relates to a packaging box.

Some packaging boxes have an outer box with an open lower surface and a tray-shaped inner box containing products, and the inner box is stored in the outer box. Such a packaging box can be displayed in a state where the product is contained in the inner box by removing the outer box from the inner box at the transportation destination.

In the packaging box described above, a slit-shaped insertion port is formed at the lower edge of the front wall of the inner box, and an opening portion partitioned by perforations is formed at the lower end of the front wall of the outer box. In some cases, the insertion piece is inserted into the insertion port (see, for example, Patent Document 1).

In the above-mentioned packaging box, if the opening part of the outer box is cut off when the outer box is removed from the inner box, the insertion piece is also cut off from the outer box together with the opening part, so that the connection between the outer box and the inner box should be released. Can be done.

Japanese Unexamined Patent Publication No. 2015-217961

In the conventional assembly work of the packaging box, when assembling the outer box to the inner box, the insertion piece of the outer box is bent inward, and the insertion piece is horizontally oriented with respect to the insertion port of the inner box. Since it is inserted from the beginning, there is a problem that the work of connecting the outer box and the inner box becomes complicated.

An object of the present invention is to solve the above-mentioned problems and to provide a packaging box in which an outer box and an inner box can be easily connected and separated.

In order to solve the above problems, the present invention is a packaging box having an outer box having an open lower surface and an inner box having an open upper surface, and the inner box is housed in the outer box. The outer box includes a top plate and front, rear, left, and right outer walls connected to the edge of the top plate. The inner box includes a bottom plate and front, rear, left, and right inner walls connected to the edge of the bottom plate. An insertion port is open in the inner wall of the inner box. An opening portion defined by a cutting guide line is formed on the outer wall of the outer box. An insertion piece inserted into the insertion port is projected from the upper edge of the opening portion.

In the assembling work of the packaging box of the present invention, when assembling the outer box to the inner box, the outer box is put on the bottom of the inner box from the top plate side with the top plate of the outer box open. At this time, while pushing the insertion piece of the outer box inward, the inner box is covered with the outer box, and the insertion piece is inserted into the insertion port.
As described above, in the packaging box of the present invention, the operation of covering the inner box with the outer box and the operation of connecting the outer box and the inner box can be performed at the same time, so that the packaging box can be easily assembled.

Further, when opening the packaging box of the present invention, if the opening portion of the outer box is cut off, the insertion piece is also cut off from the outer box together with the opening portion, and the connection between the outer box and the inner box is released. Therefore, in the packaging box of the present invention, the outer box can be easily removed from the inner box.

In the packaging box described above, it is preferable to form the opening portion upward from the lower edge portion of the outer wall.
In this configuration, the opened portion can be easily cut out from the outer box by putting a hand on the lower edge portion of the opened portion and pulling up the opened portion.

Further, when a pair of left and right ruled lines are formed from the lower edge portion to the upper edge portion of the opening portion, when the lower edge portion of the opening portion is pulled outward, the opening portion is bent by the left and right ruled lines and opened. Since the portion is pulled out to the outside, it becomes easy to pull up the opened portion.

In the packaging box described above, it is preferable that guide pieces are continuously provided at the lower edge portion of the insertion port via a ruled line.
In this configuration, when the insertion piece is inserted into the insertion port, the guide piece bends inward, so that the insertion piece can be smoothly inserted into the insertion port.
Further, after the insertion piece is inserted into the insertion port, the insertion piece is pressed against the inner wall of the inner box by the restoring force of the guide piece, so that the insertion piece is difficult to be removed from the insertion port.

In the present invention, when assembling the packaging box, the work of covering the inner box with the outer box and the work of connecting the outer box and the inner box can be performed at the same time, so that the packaging box can be easily assembled. .. Further, when the packaging box of the present invention is opened, the insertion piece is cut off from the outer box together with the opening portion, so that the outer box can be easily removed from the inner box.

It is a perspective view which looked at the packaging box which concerns on embodiment of this invention from the upper left front. It is a figure which showed the blank sheet of the packaging box which concerns on embodiment of this invention. It is a perspective view which looked at the outer box which concerns on embodiment of this invention from the upper left front. It is a perspective view which looked at the inner box which concerns on embodiment of this invention from the upper left front. It is a figure which showed the packaging box which concerns on embodiment of this invention, and is the VV sectional view of FIG. It is a perspective view which showed the state before covering the inner box with the outer box which concerns on embodiment of this invention. It is a side sectional view which showed the process of covering the inner box with the outer box which concerns on embodiment of this invention. It is a perspective view which showed the state which opened the packaging box which concerns on embodiment of this invention.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
As shown in FIG. 1, the packaging box 1 of the present embodiment has an outer box 2 and a tray-shaped inner box 3 containing products, and the inner box 3 is housed in the outer box 2. As shown in FIG. 8, the packaging box 1 can be displayed in a state where the outer box 2 is removed from the inner box 3 at the transport destination, the outer box 2 is opened, and the product is contained in the inner box 3.

As shown in FIG. 2, the outer box 2 and the inner box 3 are formed by folding two blank sheets S1 and S2 obtained by cutting out a corrugated cardboard sheet into mountain folds or valley folds at each ruled line. The blank sheet S1 forms the outer box 2 (see FIG. 3). Further, the blank sheet S2 forms an inner box 3 (see FIG. 4).

Both blank sheets S1 and S2 shown in FIG. 2 are arranged so that the outer surface side can be seen. Each ruled line (folded line) of both blank sheets S1 and S2 is a linear groove formed by pushing the surfaces of both blank sheets S1 and S2. A notch may be formed in the ruled line. In this way, both blank sheets S1 and S2 can be easily bent at the ruled line.

As shown in FIG. 3, the outer box 2 is a box body having an open lower surface. The outer box 2 includes a top plate 10, front and rear outer end walls 11 and 11 connected to the front and rear edges of the top plate 10, and left and right outer walls 12 and 12 connected to the left and right edges of the top plate 10. And have. The outer end wall 11 and the outer wall 12 are formed in a quadrangular shape.

A front outer end wall 11 is continuously provided on the front edge of the left outer wall 12 via a ruled line L1. Further, on the right edge portion of the outer end wall 11 on the front side, the outer wall 12 on the right side is continuously provided via the ruled line L2. Further, on the trailing edge of the outer wall 12 on the right side, a rear outer end wall 11 is continuously provided via a ruled line L3.
The front and rear outer end walls 11 and 11 have the same shape, and the left and right outer walls 12 and 12 have the same shape.
A joint piece 13 is continuously provided on the left edge of the outer end wall 11 on the rear side via a ruled line. The joining piece 13 is joined to the inner surface of the outer wall 12 on the left side by an adhesive.

When the blank sheet S1 (see FIG. 2) is bent along the ruled lines L1 to L3 and the joining piece 13 is joined to the inner surface of the left outer wall 12, the front and rear outer end walls 11 and 11 and the left and right outer walls 12 and 12 are quadrangular. It is formed in the shape of a square tube.

The top plate 10 has left and right inner flaps 15 and 15 connected to the upper edges of the left and right outer walls 12 and 12, and front and rear outer flaps connected to the upper edges of the front and rear outer end walls 11 and 11. It is equipped with 16, 16.
The front and rear outer flaps 16 and 16 are superposed on the upper surfaces of the left and right inner flaps 15 and 15. The front and rear outer flaps 16 and 16 are butted against each other and are joined by an adhesive means such as an adhesive tape.
The top plate 10 is formed perpendicular to the front and rear outer end walls 11, 11 and the left and right outer walls 12, 12.

At the lower part of the outer wall 12 on the left side, an opening portion 17 partitioned by the front and rear cutting guide lines L21 and L21 and the upper cutting guide line L22 is formed. The opening portion 17 is a portion to be cut out when the outer box 2 is removed from the inner box 3 (see FIG. 8).

The front and rear cutting guide lines L21 and L21 are perforations extending upward from the lower edge portion 12a of the outer wall 12. The front and rear cutting guide lines L21 and L21 are arranged at intervals in the front and rear direction. The distance between the front and rear cutting guide lines L21 and L21 becomes narrower toward the upper side.
The shape of each notch at the perforation is not limited. Further, the cutting guide line L21 may be formed by a half-cut line.

The upper cutting guide line L22 is a notch line formed between the upper portions of the front and rear cutting guide lines L21 and L21. Both ends of the upper cutting guide line L22 are arranged below the upper ends of the front and rear cutting guide lines L21 and L21.

The upper ends of the front and rear cutting guide lines L21 and L21 enter above both ends of the upper cutting guide line L22. Further, the upper ends of the front and rear cutting guide lines L21 and L21 are bent toward the central portion of the outer wall 12 in the front-rear direction.
In this way, when the front and rear cutting guide lines L21 and L21 are cut open upward from the lower end portion, the outer wall 12 is formed at the corner between the front and rear cutting guide lines L21 and L21 and the upper cutting guide line L22. Can be prevented from tearing.

The central portion of the upper cutting guide line L22 projects upward in a quadrangular shape. As a result, the quadrangular insertion piece 18 is projected from the central portion of the upper edge portion of the opening portion 17.
In the upper cutting guide line L22, the corners of the side edge portion of the insertion piece 18 and the straight portion in the front-rear direction are formed in an arc shape. In this way, it is possible to prevent the opening portion 17 from being torn when the insertion piece 18 is cut out from the outer wall 12.

A handle portion 19 recessed upward is formed in the central portion of the lower edge portion of the opening portion 17. The handle portion 19 is a portion on which a hand is placed when the opening portion 17 is cut off.

A pair of front and rear ruled lines L23 and L23 are formed on the inner surface of the opening portion 17 from the lower ends of the both side edges of the insertion piece 18 to the lower edge of the opening portion 17 (see FIG. 2). The front and rear ruled lines L23 and L23 are arranged at intervals in the front-rear direction. The distance between the front and rear ruled lines L23 and L23 becomes narrower toward the bottom. The lower ends of the front and rear ruled lines L23 and L23 are arranged on both sides of the handle portion 19.
The ruled line L23 is formed on the inner surface of the opening portion 17, but in the present embodiment, the ruled line L23 is shown on the outer surface of the opening portion 17 in each drawing in order to explain the configuration of the ruled line L23 in an easy-to-understand manner. ..

An opening portion 17 is also formed on the outer wall 12 on the right side in the same manner as the outer wall 12 on the left side. As shown in FIG. 8, when the outer box 2 is removed from the inner box 3, the opening portions 17 and 17 are cut off from the left and right outer walls 12 and 12, respectively.

As shown in FIG. 4, the inner box 3 is a tray having an open upper surface. The inner box 3 includes a bottom plate 20, front and rear inner end walls 21A and 21B connected to the front and rear edges of the bottom plate 20, and left and right inner side walls 22 and 22 connected to the left and right edges of the bottom plate 20. And have.

The inner side wall 22 on the left side is formed in a pentagonal shape. The upper and lower edges of the inner wall surface 22 are formed in parallel, and the front and rear edges are formed in parallel. The lower edge of the inner wall 22 extends forward of the upper edge. The trailing edge of the inner wall 22 extends above the front edge. An inclined edge portion is formed between the front end portion of the upper edge portion and the upper end portion of the front edge portion.

A front inner end wall 21A is continuously provided on the front edge of the left inner side wall 22 via a ruled line L11. The inner end wall 21A on the front side is formed in a quadrangular shape.
On the right edge of the front inner end wall 21A, a right inner side wall 22 is continuously provided via a ruled line L12. The inner side wall 22 on the right side has the same shape as the inner side wall 22 on the left side.
At the trailing edge of the inner wall 22 on the right side, a rear inner wall 21B is continuously provided via a ruled line L13. The rear inner end wall 21B is formed in a quadrangular shape. The left-right length of the rear inner end wall 21B is the same as the left-right length of the front inner end wall 21A. The height of the rear inner end wall 21B is formed higher than the height of the front inner end wall 21A.
A joint piece 23 is continuously provided on the left edge of the inner end wall 21B on the rear side via a ruled line. The joining piece 23 is joined to the inner surface of the inner side wall 22 on the left side by an adhesive.

When the blank sheet S2 (see FIG. 2) is bent along the ruled lines L11 to L13 and the joining piece 23 is joined to the inner surface of the left inner side wall 22, the front and rear inner end walls 21A and 21B and the left and right inner side walls 22 and 22 are quadrangular. It is formed in the shape of a square tube.

As shown in FIG. 2, left and right inner flaps 25 and 25 are continuously provided on the lower edges of the left and right inner side walls 22 and 22, and the front and rear inner flaps 21A and 21B are on the front and rear lower edges. The outer flaps 26 and 26 are connected in series. Then, the inner flap 25 and the outer flap 26 are overlapped and joined with an adhesive to form a quadrangular bottom plate 20 as shown in FIG.
In each figure of the present embodiment, the illustration of the inner flap 25 (see FIG. 2) and the outer flap 26 (see FIG. 2) of the inner box 3 is appropriately omitted.

An insertion port 27 is opened in the inner side wall 22 on the left side. The insertion port 27 is formed in the lower portion of the inner side wall 22 at the central portion in the front-rear direction. The insertion port 27 is a rectangular through hole extending in the front-rear direction. As shown in FIG. 1, the insertion piece 18 of the outer box 2 is inserted into the insertion port 27.

As shown in FIG. 4, a guide piece 28 is continuously provided at the lower edge portion of the insertion port 27 via a ruled line L30. The guide piece 28 is formed in a band shape along the lower edge portion of the insertion port 27. The left and right edges of the guide piece 28 are separated from the inner side wall 22 by a notch.

An insertion port 27 and a guide piece 28 are also formed on the inner side wall 22 on the right side, similarly to the inner side wall 22 on the left side.

As shown in FIG. 1, in a state where the inner box 3 is housed in the outer box 2, the insertion piece 18 of the outer box 2 is inserted into the insertion port 27 from the lower side. As shown in FIG. 5, the insertion piece 18 is inserted inside the inner box 3.
The outer surface of the upper part of the insertion piece 18 is pressed against the inner surface of the inner side wall 22 of the inner box 3. Further, the outer surface of the guide piece 28 is pressed against the inner surface of the lower portion of the insertion piece 18.

Next, in the packaging box 1 of the present embodiment, a procedure for assembling the outer box 2 to the inner box 3 will be described.
As shown in FIG. 6, the inner box 3 in the assembled state is turned upside down and put on the upper end portion of the rectangular jig J. Further, the outer box 2 is placed above the inner box 3 by turning it upside down with the top plate 10 open.

Then, with the front-back and left-right directions of the outer box 2 aligned with the front-back and left-right directions of the inner box 3, the outer box 2 is put on the bottom of the inner box 3 from the top plate 10 side.
At this time, as shown in FIG. 7, when the outer box 2 is slid with respect to the inner box 3 while pushing the left and right insertion pieces 18 and 18 of the outer box 2 inward, the difference between the inner boxes 3 is increased. The insertion piece 18 is inserted into the insertion port 27.
When the insertion piece 18 enters the insertion port 27, the guide piece 28 bends inward, so that the insertion piece 18 can be smoothly inserted into the insertion port 27.

When the insertion piece 18 is inserted into the insertion port 27 in this way, the insertion piece 18 enters the inside of the inner box 3, and the outer surface of the upper portion of the insertion piece 18 becomes the inner surface of the inner side wall 22 of the inner box 3. Be pressed. As a result, the insertion piece 18 is connected to the insertion port 27, and the outer box 2 and the inner box 3 are connected.

After connecting the outer box 2 and the inner box 3, the outer box 2 and the inner box 3 are removed from the jig J (see FIG. 6), and the outer box 2 and the inner box 3 are turned upside down.
After putting the product in the inner box 3, as shown in FIG. 1, by closing the top plate 10 of the outer box 2 with an adhesive tape or the like, the inner box 3 is stored in the outer box 2 and the packaging box. The assembly work of 1 is completed.

Next, the procedure for opening the packaging box 1 of the present embodiment will be described.
When opening the packaging box 1, as shown in FIG. 8, first, the handle portion 19 of the opening portion 17 of the outer box 2 is touched and pulled out to the outside. As a result, the opening portion 17 is bent at the two ruled lines L23 and L23, and the opening portion 17 is pulled out to the outside.
Subsequently, the opening portion 17 is cut off from the outer wall 12 of the outer box 2 by putting a hand on the lower edge portion of the opening portion 17 and pulling up the opening portion 17. In this way, the opening portions 17 and 17 are cut off from the left and right outer walls 12 and 12 of the outer box 2, respectively.
At this time, since the insertion piece 18 is also cut off from the outer box 2 together with the opening portion 17, the connection between the outer box 2 and the inner box 3 is released. Then, the packaging box 1 (see FIG. 1) can be opened by lifting the outer box 2 and removing the outer box 2 from the inner box 3.

In the packaging box 1 as described above, as shown in FIG. 7, when the inner box 3 is covered with the outer box 2 in the assembling work, the insertion piece 18 of the outer box 2 is placed in the insertion port 27 of the inner box 3. It is plugged in.
As described above, in the packaging box 1 of the present embodiment, the operation of covering the inner box 3 with the outer box 2 and the operation of connecting the outer box 2 and the inner box 3 can be performed at the same time. Can be easily assembled.

Further, when the insertion piece 18 is inserted into the insertion port 27, the guide piece 28 in the insertion port 27 bends inward, so that the insertion piece 18 can be smoothly inserted into the insertion port 27. it can.
Further, after the insertion piece 18 is inserted into the insertion port 27, the insertion piece 18 is pressed against the inner side wall 22 of the inner box 3 by the restoring force of the guide piece 28, so that the insertion piece is inserted from the insertion port 27. 18 cannot be removed.

When the packaging box 1 of the present embodiment is opened, as shown in FIG. 8, when the left and right opening portions 17 and 17 of the outer box 2 are cut off, the insertion piece 18 is also cut off from the outer box 2 together with the opening portion 17. The connection between the outer box 2 and the inner box 3 is released. Therefore, in the packaging box 1 of the present embodiment, the outer box 2 can be easily removed from the inner box 3.

Further, in the packaging box 1 of the present embodiment, when the opening portion 17 is cut off, the opening portion 17 is easily cut off from the outer box 2 by putting a hand on the lower edge portion of the opening portion 17 and pulling up the opening portion 17. be able to. In the packaging box 1 of the present embodiment, when the lower edge portion of the opening portion 17 is pulled outward, the opening portion 17 is pulled out to the outside, so that the opening portion 17 can be easily pulled up.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be appropriately modified without departing from the spirit of the present invention.
In the packaging box 1 of the present embodiment, as shown in FIG. 1, an insertion port 27 is formed in the inner side wall 22 of the inner box 3, and an insertion piece 18 is formed in the outer wall 12 of the outer box 2. , The number and position of outlets and inserts are not limited. For example, the insertion ports may be formed on the front and rear inner end walls 21A and 21B of the inner box 3, and the insertion pieces may be formed on the front and rear outer end walls 11 and 11 of the outer box 2.

In the present embodiment, the opening portion 17 is formed upward from the lower edge portion 12a of the outer wall 12, but as a reference example, the entire opening portion 17 is arranged in the outer wall 12 and is formed from the outer wall 12. The opening portion 17 may be cut out.

1 Packaging box 2 Outer box 3 Inner box 10 Top plate 11 Outer end wall 12 Outer side wall 13 Joint piece 17 Opening part 18 Insert piece 19 Hand part 20 Bottom plate 21A Front inner end wall 21B Rear inner end wall 22 Inner side wall 23 Joining piece 27 Insertion port 28 Guide piece J jig S1 Blank sheet for outer box S2 Blank sheet for inner box

Claims (2)

It has an outer box with an open lower surface and an inner box with an open upper surface.
A packaging box in which the inner box is stored in the outer box.
The outer box is
With the top plate
The front, rear, left, and right outer walls, which are connected to the edge of the top plate, are provided.
The inner box is
With the bottom plate
The front, rear, left, and right inner walls, which are connected to the edge of the bottom plate, are provided.
An outlet is opened in the inner wall of the inner box.
An opening portion defined by a cutting guide line is formed on the outer wall of the outer box .
The opening portion is formed upward from the lower edge portion of the outer wall.
Wherein the upper edge of the opening portion, the insertion piece inserted into the insertion port is projected Rutotomoni,
A packaging box characterized in that a pair of left and right ruled lines are formed from the lower edge portion to the upper edge portion of the opened portion. The packaging box according to claim 1.
A packaging box characterized in that guide pieces are continuously provided at the lower edge of the insertion port via a ruled line.

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