JP7102291B2 - Packaging container - Google Patents

Description

The present invention relates to a packaging container.

A so-called clamshell carton packaging container in which two boxes are connected by a hinge portion is known.

For example, Patent Document 1 discloses a folding paper box for wrapping, which is formed by forming a box symmetrically to the left and right of the central line AB. With the folding paper box for packaging closed, the back surfaces of the two boxes form substantially the same plane with the AB line in between. The two boxes open and close with the AB line as the fulcrum.

Gazette No. 41-8312

In the above-mentioned folding paper box for wrapping, the two boxes are configured to open while the lines AB are folded in a valley. However, in this folding paper box for packaging, since the back surfaces of the two boxes and the lines AB are arranged on substantially the same plane, as shown in FIG. 10, in the process of opening the two boxes, A part (or all) of the AB line was sometimes folded in a mountain instead of being folded in a valley. Then, the two boxes could not be opened and closed smoothly. Further, if the two boxes are forcibly opened with a part of the AB line folded in a mountain fold, both ends of the AB line may be torn. Therefore, in the above-mentioned folding paper box for packaging, opening and closing of the two boxes may not only deteriorate the appearance but also make it impossible to store the articles.

In order to solve the above problems, the present invention provides a packaging container capable of smoothly opening and closing two boxes centered on a hinge portion.

In order to achieve the above object, the present invention is a packaging container in which a first box body and a second box body are connected to each other so as to be openable and closable via a hinge portion, and the hinge portion is the first box. It is formed between the first back plate of the body and the second back plate of the second box, and the first back plate and the second back plate are the first box and the second box. Is inclined toward the front side toward the hinge portion from the end portion on the side opposite to the hinge portion in the closed state.

In this case, the first box body includes a first outer surface plate, a first front plate arranged at the front end portion of the first outer surface plate, and the first front plate arranged at the rear end portion of the first outer surface plate. It has a back plate and a pair of first side plates arranged at both side ends of the first outer surface plate, and the second box body has a second outer surface plate and a front end portion of the second outer surface plate. A second front plate arranged, the second back plate arranged at the rear end portion of the second outer surface plate, and a pair of second side plates arranged at both side ends of the second outer surface plate. It is preferable that the first back plate and the second back plate are connected to each other via the hinge portion.

In order to achieve the above object, the present invention is a packaging container in which a first box body and a second box body are connected to each other so as to be openable and closable via a hinge portion, and the first box body is arranged to face each other. The first outer surface plate and the first inner surface plate, the first front surface plate arranged between the first outer surface plate and the front end portion of the first inner surface plate, the first outer surface plate and the first inner surface plate, and the first inner surface plate. A first back plate arranged between the rear ends of the face plate, and a pair of first inner pieces connected to both side ends of either the first outer surface plate and the first inner surface plate.
A pair of first outer pieces connected to both side ends of either the first outer surface plate and the first inner surface plate, and both side ends of any one of the first outer surface plate and the first inner surface plate. A pair of first slits formed at the boundary between the portion and the pair of first inner pieces, and a pair of first slits connected to the tip portions of the pair of first outer pieces and inserted into the pair of first slits. The second box body has an insertion piece, and the second box body is arranged between the second outer surface plate and the second inner surface plate arranged to face each other, and the front end portions of the second outer surface plate and the second inner surface plate. A second front plate, a second back plate arranged between the second outer surface plate and the rear end portion of the second inner surface plate, and any one of the second outer surface plate and the second inner surface plate. A pair of second inner pieces connected to both side ends of one side, and a pair of second outer pieces connected to both side ends of either the second outer surface plate and the second inner surface plate. A pair of second slits formed at the boundary between both side ends of either one of the second outer surface plate and the second inner surface plate and a pair of second inner pieces, and a tip portion of the pair of second outer pieces. The first back plate and the second back plate are continuously provided via the hinge portion. The first slit and the second slit are arranged so as to be relatively offset from the first insertion piece and the second insertion piece toward the hinge portion side, and the first insertion piece. And the second insertion piece are inserted into the first slit and the second slit, and the first inner surface plate and the second inner surface plate face each other, and the first box body and the second box With the body closed, the first back plate and the second back plate are inclined toward the front side toward the hinge portion from an end portion opposite to the hinge portion.

In this case, an engaging hole is formed in either one of the first inner surface plate and the second inner surface plate, and the first box is formed in either one of the first inner surface plate and the second inner surface plate. It is preferable that a protrusion that engages with the engaging hole is formed in a state where the body and the second box are closed.

In this case, the first inner surface plate is formed with a first opening for exposing the articles contained in the first box body, and the second inner surface plate exposes the articles housed in the second box body. It is preferable that a second opening is formed.

According to the present invention, in a packaging container in which a first box body and a second box body are connected to each other so as to be openable and closable via a hinge portion, the two box bodies can be smoothly opened and closed around the hinge portion. can.

It is a perspective view which shows the closed state of the packaging container which concerns on one Embodiment of this invention. It is a perspective view which shows the inside which opened the packaging container which concerns on one Embodiment of this invention. It is a perspective view which shows the outside which opened the packaging container which concerns on one Embodiment of this invention. It is a top view which shows the blank of the packaging container which concerns on one Embodiment of this invention. It is a side view which shows the deviation between the 1st and 2nd insertion piece and the 1st and 2nd slit of the packaging container which concerns on one Embodiment of this invention. It is a side view which shows the state which the 1st and 2nd insertion pieces of the packaging container which concerns on one Embodiment of this invention are inserted into the 1st and 2nd slits. It is a side view which shows the state which the packaging container which concerns on one Embodiment of this invention is closed. FIG. 5 is a perspective view showing a process of inserting a protrusion into an engaging hole in a packaging container according to an embodiment of the present invention. It is a perspective view which shows the inside which opened the packaging container which concerns on the modification of one Embodiment of this invention. It is a perspective view which shows the conventional folding paper box for wrapping.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In each figure, "Fr" indicates "front", "Rr" indicates "rear", "L" indicates "left", "R" indicates "right", and "U" indicates "right". "Upper" is indicated, and "D" is "lower". In addition, although terms indicating directions and positions are used in the present specification, these terms are used for convenience of explanation and do not limit the technical scope of the present invention.

[Overview of packaging container]
The configuration of the packaging container 1 will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view showing a state in which the packaging container 1 is closed. FIG. 2 is a perspective view showing the inside of the packaging container 1 opened. FIG. 3 is a perspective view showing the outside of the packaging container 1 opened. FIG. 4 is a plan view showing a blank 5 of the packaging container 1.

As shown in FIGS. 1 and 2, the packaging container 1 is a so-called clamshell in which a first box body 1A and a second box body 1B are connected to each other so as to be openable and closable via a hinge wire H (an example of a hinge portion). Carton. The first box body 1A and the second box body 1B are formed in a substantially rectangular cuboid shape that is long in the left-right direction and thin in the thickness direction. The first box body 1A and the second box body 1B are formed to have substantially the same size. The first box body 1A and the second box body 1B form a substantially rectangular cuboid shape in a superposed state. Articles (not shown) are housed in the respective boxes 1A and 1B.

As shown in FIG. 3, the hinge wire H is formed between the first back plate 13 of the first box 1A and the second back plate 23 of the second box 1B. The first box body 1A and the second box body 1B are opened side by side by being rotated about the hinge wire H as an axis (see also FIG. 2). In the present specification, unless otherwise specified, the term indicating the direction or position refers to the direction or position based on the state in which the first box body 1A and the second box body 1B are overlapped (closed state). It shall be shown.

The packaging container 1 is formed by assembling the blank 5 shown in FIG. The blank 5 is formed by punching a sheet of paperboard (thick paper) with a die or the like. Note that FIG. 2 shows the outer surface (surface) side of the packaging container 1. Further, "X" shown in the drawing indicates a "paper grain direction" in which a paper fiber (paper grain) extends, and "Y" indicates a "orthogonal direction" orthogonal to the paper grain direction.

[blank]
As shown in FIG. 4, the blank 5 is formed in a substantially rectangular shape long in the grain direction. The blank 5 includes a first outer surface plate 10, a first inner surface plate 11, a first front plate 12, a first back plate 13, a pair of first inner pieces 14, and a pair of first outer pieces 15. A pair of first insertion pieces 16, four first inner flaps 17, a second outer surface plate 20, a second inner surface plate 21, a second front plate 22, a second back plate 23, and a pair of first inserts. It includes two inner pieces 24, a pair of second outer pieces 25, a pair of second insertion pieces 26, four second inner flaps 27, and a joint piece 9.

Second outer surface plate 20, second back plate 23, first back plate 13, first outer surface plate 10, first front plate 12, first inner surface plate 11, second inner surface plate 21, second front plate 22, and joint The pieces 9 are arranged in a row in the paper grain direction in this order. The second outer surface plate 20, the first outer surface plate 10, the first inner surface plate 11, and the second inner surface plate 21 have substantially the same size and are formed in a substantially rectangular shape long in the orthogonal direction. Further, the second back plate 23, the first back plate 13, the first front plate 12, and the second front plate 22 have substantially the same size and are formed in a substantially rectangular shape long in the orthogonal direction. The dimensions of the second back plate 23 and the like in the grain direction are set sufficiently shorter than the dimensions of the second outer surface plate 20 and the like in the grain direction. The joint piece 9 is formed in a substantially rectangular shape (trapezoidal shape), which is shorter in the grain direction than the second outer surface plate 20 and the like and longer in the grain direction than the second back plate 23 and the like.

The second outer surface plate 20 and the second back surface plate 23 are connected to each other via the first folding curve L1. The first back plate 13 and the second back plate 23 are connected to each other via a hinge wire H. The first outer surface plate 10 and the first back surface plate 13 are connected to each other via the first folding curve L1. The first outer surface plate 10, the first front plate 12, the first inner surface plate 11, the second inner surface plate 21, the second front plate 22, and the joint piece 9 are connected to each other via the second folding curve L2. To be precise, two second folding curves L2 are formed in parallel with each other at the boundary between the first inner surface plate 11 and the second inner surface plate 21.

<engagement holes, protrusions>
Two engaging holes 30 are formed in the first inner surface plate 11, and two protrusions 31 are formed in the second inner surface plate 21. Specifically, the engaging hole 30 is a slit formed along the second folding curve L2 at the boundary between the first front plate 12 and the first inner surface plate 11. The two engaging holes 30 are formed at positions separated from each other in the orthogonal direction at the intermediate portion of the second folding curve L2. The protrusion 31 is partitioned by a protrusion cutting line 31A extending from the second folding curve L2 at the boundary between the second inner surface plate 21 and the second front plate 22 toward the second inner surface plate 21. The two protrusions 31 are formed at positions corresponding to the two engagement holes 30. The details will be described later, but the two protrusions 31 engage with the two engaging holes 30 in a state where the first box body 1A and the second box body 1B are closed.

<1st opening, 2nd opening>
Further, the first inner surface plate 11 is formed with the first opening 32, and the second inner surface plate 21 is formed with the second opening 33. The first and second openings 32 and 33 are formed in substantially the entire area except for the peripheral edges of the first and second inner surface plates 11 and 21. The first and second openings 32 and 33 are partitioned by opening cutting lines 32A and 33A formed on the first and second inner surface plates 11 and 21 along these contours. The first opening 32 is formed in a substantially L shape having a portion protruding inward from one corner of the rectangle in a substantially trapezoidal shape. The second opening 33 is formed in a rectangular shape.

<1st inner piece>
The pair of first inner pieces 14 are connected to both end portions of the first inner surface plate 11 in the orthogonal direction via the third folding curve L3. The first inner piece 14 is formed in a substantially trapezoidal shape in which the width gradually narrows from the first inner surface plate 11 toward the tip. The dimension (extended dimension) of the first inner piece 14 in the orthogonal direction is set shorter than the dimension of the first front plate 12 in the paper grain direction.

<1st slit>
A pair of first slits 18 are formed at the boundary (third folding curve L3) between both side ends of the first inner surface plate 11 and the pair of first inner pieces 14. The first slit 18 is a cut formed along the third folding curve L3. The first slit 18 is formed in an intermediate portion of the third folding curve L3 having a gap D1 from both ends of the first inner surface plate 11 in the paper grain direction.

<First outer piece>
The pair of first outer pieces 15 are connected to both end portions of the first outer surface plate 10 in the orthogonal direction via the third folding curve L3. The first outer piece 15 is formed in a substantially trapezoidal shape in which one side on the first front plate 12 side is inclined inward. The dimension (extended dimension) of the first outer piece 15 in the orthogonal direction is set to be substantially the same as the dimension in the grain direction of the first front plate 12 and the like.

<1st insertion piece>
The pair of first insertion pieces 16 are connected to the tip ends of the pair of first outer pieces 15 via the third folding curve L3. The first insertion piece 16 is formed in a substantially rectangular shape with both corners on the tip side chamfered in an arc shape. The dimension of the first insertion piece 16 in the grain direction is set to be substantially the same as the dimension of the first slit 18 in the grain direction. The first insertion piece 16 has a distance D2 from the boundary between the first outer surface plate 10 and the first front plate 12, and a distance D3 from the boundary between the first outer surface plate 10 and the first back plate 13. It is formed in the middle portion of the three-fold curve L3. Here, since the interval D2 is shorter than the interval D3, the first insertion piece 16 is closer to the first front plate 12 (hinge wire) than the center of the first outer surface plate 10 (first outer piece 15) in the paper grain direction. It is formed at a position shifted in the direction away from H (shift amount = (D3-D2) / 2). Further, the spacing D1 on both sides of the first slit 18 is set to be longer than the spacing D2 and shorter than the spacing D3.

<Second inner piece>
The pair of second inner pieces 24 are connected to both end portions of the second inner surface plate 21 in the orthogonal direction via the third folding curve L3. The second inner piece 24 is formed in substantially the same shape as the first inner piece 14 described above.

<2nd slit>
A pair of second slits 28 are formed at the boundary between both side ends of the second inner surface plate 21 and the pair of second inner pieces 24. The second slit 28 is formed to have substantially the same dimensions as the first slit 18 described above. The second slit 28 is a cut formed along the third folding curve L3, and is formed in an intermediate portion of the third folding curve L3 having a gap D1 from both ends in the paper grain direction of the second inner surface plate 21. Has been done.

<Second outer piece>
The pair of second outer pieces 25 are connected to both end portions of the second outer surface plate 20 in the orthogonal direction via the third folding curve L3. The second outer piece 25 is formed in substantially the same shape as the first outer piece 15 described above.

<Second insert>
The pair of second insertion pieces 26 are connected to the tip portions of the pair of second outer pieces 25 via the third folding curve L3. The second insertion piece 26 is formed in substantially the same shape as the first insertion piece 16 described above. The second insertion piece 26 is a third folding curve having a space D2 from the end of the second outer surface plate 20 in the paper grain direction and a space D3 from the boundary between the second outer surface plate 20 and the second back surface plate 23. It is formed in the middle part of L3. The second insertion piece 26 (second outer piece 25) is formed symmetrically with the first insertion piece 16 (first outer piece 15) centering on the first and second back plates 13 and 23.

<1st inner flap>
The four first inner flaps 17 are connected to both end portions in the orthogonal direction between the first front plate 12 and the first back plate 13 via the fourth folding curve L4. The first inner flap 17 connected to the first front plate 12 is formed in a substantially trapezoidal shape in which one side on the first inner surface plate 11 side is inclined inward. The first inner flap 17 connected to the first back plate 13 is formed in a substantially trapezoidal shape in which the width gradually narrows from the first back plate 13 toward the tip. The dimension (extension dimension) of the first inner flap 17 in the orthogonal direction is set to be substantially the same as the extension dimension of the first outer piece 15.

<Second inner flap>
The four second inner flaps 27 are connected to both end portions in the orthogonal direction between the second front plate 22 and the second back plate 23 via the fourth folding curve L4. The second inner flap 27 connected to the second front plate 22 is formed in a substantially trapezoidal shape in which one side on the second inner surface plate 21 side is inclined inward. The second inner flap 27 connected to the second back plate 23 is formed in a substantially parallel four-sided shape inclined from the first back plate 13 toward the tip toward the first inner flap 17. The dimension (extended dimension) of the second inner flap 27 in the orthogonal direction is set to be substantially the same as the extended dimension of the first inner flap 17.

The second folding curve L2 and the fourth folding curve L4 are general-purpose ruled lines recessed linearly from the surface of the paperboard. The first folding curve L1, the hinge line H, and the third folding curve L3 are lead ruled lines in which a plurality of cuts are arranged at predetermined intervals on a general-purpose ruled line. The first to fourth folding curves L1 to L4 and the hinge line H are not limited to general-purpose ruled lines and lead ruled lines, and may be any line for folding paperboard.

[Assembly of packaging box]
Next, the assembly process of the packaging container 1 will be described with reference to FIGS. 4 to 8. FIG. 5 is a side view showing the deviation between the first and second insertion pieces 16, 26 and the first and second slits 18, 28. FIG. 6 is a side view showing a state in which the first and second insertion pieces 16 and 26 are inserted into the first and second slits 18 and 28. FIG. 7 is a side view showing a state in which the packaging container 1 is closed. FIG. 8 is a perspective view showing a process of inserting the protrusion 31 into the engaging hole 30. The packaging container 1 may be manually manufactured by an operator, or may be automatically or semi-automatically manufactured by a box making machine or the like. Here, as an example, a case where an operator manually manufactures the packaging container 1 will be described. Further, it is assumed that the first and second inner surface plates 11 and 21 are cut along the opening cutting lines 32A and 33A, and the first and second openings 32 and 33 are open.

The operator puts the back surface of the blank 5 (see FIG. 4) facing upward, and folds the first back plate 13 and the second back plate 23 in a valley so as to be convex toward the back side along the hinge line H. And fold it. Subsequently, the operator bends the first outer surface plate 10 and the second outer surface plate 20 at substantially right angles along the first folding curve L1 so as to be convex toward the surface side. In this state, the folded first and second back surface plates 13 and 23 are provided in an upright posture between the first outer surface plate 10 and the second outer surface plate 20.

Next, the operator bends the first front plate 12 at a substantially right angle along the second folding curve L2 and stands up with respect to the first outer surface plate 10. Subsequently, the operator bends the first inner surface plate 11, the second front plate 22, and the joint piece 9 at a substantially right angle along the second folding curve L2, and the joint piece 9 is placed on the back surface of the second outer surface plate 20. Glue.

In this state, the first outer surface plate 10 and the first inner surface plate 11 are arranged to face each other in the vertical direction, and the second outer surface plate 20 and the second inner surface plate 21 are arranged to face each other in the vertical direction (see FIG. 2). The two second folding curves L2 between the first inner surface plate 11 and the second inner surface plate 21 are substantially directly above the tips (hinge wires H) of the folded first and second back plates 13, 23. It is located in. Further, the first front plate 12 is arranged between one end portion (front end portion in a closed state) of the first outer surface plate 10 and the first inner surface plate 11, and the first back surface plate 13 is the first outer surface plate 10. It is arranged between the other end portion (rear end portion in the closed state) of the first inner surface plate 11. The second front plate 22 is arranged between one end (front end) between the second outer plate 20 and the second inner plate 21, and the second back plate 23 is the second outer plate 20 and the second inner plate 21. It is arranged between the other end (rear end) of and. As a result, the first box body 1A and the second box body 1B having both left and right end faces open are formed (see FIG. 5).

Next, the worker accommodates the article inside the first box body 1A and the second box body 1B whose left and right end faces are open. In this state, the first opening 32 opened in the first box 1A exposes the article contained in the first box 1A, and the second opening 33 opened in the second box 1B is the second box 1B. The items housed in the box are exposed.

Next, as shown in FIG. 5, the operator bends the first inner flap 17 inward along the fourth folding curve L4, and then bends the first inner piece 14 inward along the third folding curve L3. Bend. Subsequently, the operator bends the first outer piece 15 and the first insertion piece 16 inward along the third folding curve L3, and inserts the first insertion piece 16 into the first slit 18. Similarly, the operator bends the second inner flap 27, the second inner piece 24, the second outer piece 25 and the second insertion piece 26 inward, and puts the second insertion piece 26 into the second slit 28. Plug it in.

Here, the first slit 18 and the second slit 28 are arranged so as to be relatively offset from the first insertion piece 16 and the second insertion piece 26 toward the hinge wire H side (FIG. 5). (See the code "S"). Therefore, the first insertion piece 16 is inserted into the first slit 18 while moving the first outer surface plate 10 and the first outer piece 15 in parallel toward the hinge wire H. Similarly, the second insertion piece 26 is inserted into the second slit 28 while moving the second outer surface plate 20 and the like in parallel toward the hinge wire H. That is, the first and second insertion pieces 16 and 26 are inserted into the first and second slits 18 and 28 while pulling the first and second outer surface plates 10 and 20 toward each other (see the white arrows shown in FIG. 6). ).

As described above, the packaging container 1 in which the first box body 1A and the second box body 1B are connected by the hinge wire H is formed. As shown in FIGS. 2 and 6, in this state, the first inner surface plate 11 and the second inner surface plate 21 do not overlap, so that the first box body 1A and the second box body 1B are in an open state. ing. The first box body 1A and the second box body 1B are not opened 180 degrees, but are slightly bent at the second folding curve L2 and the hinge line H.

As shown in FIGS. 1 and 7, the first box body 1A and the second box body 1B are connected to the hinge wire H and the two so that the operator faces the first inner surface plate 11 and the second inner surface plate 21. When folded along the second folding curve L2, the first box body 1A and the second box body 1B are in a closed state.

As shown in FIG. 8, when it is desired to keep the first box body 1A and the second box body 1B in a closed state, the operator cuts the two protrusions 31 along the protrusion cutting line 31A. The two raised protrusions 31 may be inserted into the two engaging holes 30. Thereby, the first and second boxes 1A and 1B can be locked in the closed state, and for example, the opening of the first and second boxes 1A and 1B during the transportation of the packaging container 1 can be suppressed. Can be done.

As described above, the first and second insertion pieces 16 and 26 were inserted into the first and second slits 18 and 28 while shifting toward the hinge line H (see FIGS. 5 and 6). Therefore, as shown in FIG. 7, the first insertion piece 16 and the second insertion piece 26 are inserted into the first slit 18 and the second slit 28, and the first inner surface plate 11 and the second inner surface plate 21 are inserted. With the first box body 1A and the second box body 1B closed facing each other, the first back plate 13 and the second back plate 23 are hinged from the end opposite to the hinge line H. It is inclined to the front side toward H. That is, the first back plate 13 is inclined from the rear end portion of the first outer surface plate 10 toward the hinge line H toward the first front plate 12, and the second back plate 23 is the rear end portion of the second outer surface plate 20. It is inclined toward the second front plate 22 toward the hinge wire H. In other words, the first back plate 13 and the second back plate 23 are bent in a substantially V shape in which the hinge wire H is recessed toward the front side (front). In other words, the first back plate 13 and the second back plate 23 are slightly valley-folded at the hinge line H.

On the other hand, the first front plate 12 and the second front plate 22 are inclined so as to be parallel to the first back plate 13 and the second back plate 23. That is, the first front plate 12 and the second front plate 22 are formed in a substantially V shape with the front end portions of the first and second inner surface plates 11 and 21 protruding forward. Therefore, the first and second box bodies 1A and 1B are formed in a substantially parallel quadrilateral shape when viewed from the side. The inclined one side (or two sides) of the first and second inner flaps 17 and 27 are the first and second outer surface plates of the first and second box bodies 1A and 1B whose side surfaces are substantially parallelograms. It is aligned with 10, 20 and the first and second inner face plates 11 and 21 (see FIGS. 6 and 7).

[Opening and closing action of packaging container]
In the packaging container 1 assembled as described above, the first and second boxes 1A and 1B are opened while the hinge wire H is valley-folded. Let us consider a case where the first back plate 13, the second back plate 23, and the hinge wire H are arranged on substantially the same plane in a state where the first and second box bodies 1A and 1B are closed. In this case, unless the hinge wire H is specially processed, the probability that the hinge wire H will be valley-folded and the probability that the hinge wire H will be folded in a mountain fold in the process of opening the first and second boxes 1A and 1B are substantially the same. Therefore, there is a possibility that a part of the hinge wire H is not folded in a valley but is folded in a mountain. Further, suppose that, in a state where the first and second box bodies 1A and 1B are closed, the first and second back plates 13 and 23 are inclined so that the hinge wire H protrudes rearward. In this case, since the first and second back plates 13 and 23 are in a state of being mountain-folded by the hinge wire H, if the first and second back plates 13 and 23 do not have high rigidity, the hinge wire H The force for valley folding cannot be sufficiently transmitted, and it becomes difficult to valley fold the first and second back plates 13 and 23 at the hinge wire H.

In response to the above problems, in the packaging container 1 according to the present embodiment, the first back plate 13 and the second back plate 23 are inclined so that the hinge wire H is recessed inside the packaging container 1 ( (See FIG. 7). In this configuration, the hinge wires H are slightly folded in the valley when the first and second boxes 1A and 1B are closed. Therefore, when the first and second boxes 1A and 1B are opened, the hinge wires H are folded. Will naturally be valley-folded (see FIGS. 2 and 3). As a result, it is possible to prevent a part (or all) of the hinge wire H from being folded in a mountain in the process of opening the first and second boxes 1A and 1B. As a result, the two boxes 1A and 1B can be smoothly opened and closed around the hinge wire H.

Further, in the packaging container 1 according to the present embodiment, the first and second slits 18 and 28 are configured to be relatively displaced toward the hinge wire H side from the first and second insertion pieces 16 and 26. (See FIG. 5). In this configuration, the pair of first insertion pieces 16 are inserted into the pair of first slits 18 at a position close to the hinge line H, and the pair of second insertion pieces 26 are also paired at a position close to the hinge line H. It is inserted into the second slit 28. According to this configuration, the first and second insertion pieces 16 and 26 are inserted into the first and second slits 18 and 28 so that the first and second back plates 13 and 23 are convex toward the front side. Can be tilted to (see FIG. 7). As a result, the first and second back plates 13 and 23 can be easily tilted as compared with the case where the first and second back plates 13 and 23 are fixed and tilted with an adhesive or the like, and the tilted state can be adjusted. Can be retained.

Further, in the packaging container 1 according to the present embodiment, the articles housed in the first and second box bodies 1A and 1B are exposed from the first and second openings 32 and 33. According to this configuration, by displaying the first and second boxes 1A and 1B in the store in an open state, the customer can confirm the articles housed in the first and second boxes 1A and 1B. .. As a result, the sales promotion effect can be enhanced.

In the packaging container 1 according to the present embodiment, the first and second inner surface plates 11 and 21 facing the first and second outer surface plates 10 and 20 are provided, but the present invention is not limited to the first and second inner surface plates 11. The second inner surface plates 11 and 21 may be omitted. That is, in the packaging container 1 according to the modified example, as shown in FIG. 9, the first and second box bodies 1A and 1B may be formed in a tray shape having an open inner surface (upper surface in an open state). .. In this case, a pair of first side plates 40 are connected (arranged) to both side ends of the first outer surface plate 10, and a pair of second side plates 41 are connected (arranged) to both side ends of the second outer surface plate 20. Is preferable. The first side plate 40 is preferably adhered to the first inner flap 17 (or the first front plate 12 and the first back plate 13) in a state where the first back plate 13 is tilted. Further, it is preferable that the second side plate 41 is adhered to the second inner flap 27 (or the second front plate 22 and the second back plate 23) in a state where the second back plate 23 is inclined.

Further, in the packaging container 1 according to the present embodiment (including a modified example, the same applies hereinafter), the first and second insertion pieces 16 and 26 are formed so as to be displaced in the direction away from the hinge wire H. According to this configuration, the insertion positions of the first and second insertion pieces 16 and 26 with respect to the first and second slits 18 and 28 are shifted, and the first and second back plates 13 and 23 are tilted. Is not limited to this. For example, the first and second slits 18 and 28 are formed so as to be offset in the direction approaching the hinge line H, and the first and second insertion pieces 16 and 26 are formed from both ends of the first inner surface plate 11 in the paper grain direction. It may be formed in the middle portion of the third folding curve L3 at equal intervals (not shown). Further, for example, the first and second slits 18 and 28 are formed so as to be offset in the direction approaching the hinge wire H, and the first and second insertion pieces 16 and 26 are formed so as to be offset in the direction away from the hinge wire H. It may be (not shown).

Further, the inclination angles of the first and second back plates 13 and 23 of the packaging container 1 can be freely set. Further, the amount of deviation of the first and second slits 18, 28 or the first and second insertion pieces 16, 26 can be freely set in consideration of the inclination angles of the first and second back plates 13, 23. Can be done.

Further, in the packaging container 1 according to the present embodiment, the hinge wire H as an example of the hinge portion is formed by a folded curve such as one lead ruled line, but the present invention is not limited to this. For example, the hinge portion may be composed of two or more adjacent parallel hinge wires H (not shown). Further, for example, the hinge portion may be a strip-shaped region (not shown) in which the stiffness of the paperboard is weakened by making a plurality of cuts (in the case of a corrugated cardboard sheet, the strip-shaped region is crushed).

Further, in the packaging container 1 according to the present embodiment, the first inner piece 14 is connected to the first inner surface plate 11 and the first outer piece 15 is connected to the first outer surface plate 10, but the present invention is limited to this. Instead, the first inner piece 14 may be connected to the first outer surface plate 10 and the first outer piece 15 may be connected to the first inner surface plate 11 (not shown). Similarly, the second inner piece 24 may be connected to the second outer surface plate 20 and the second outer piece 25 may be connected to the second inner surface plate 21 (not shown). In these cases, the first and second slits 18 and 28 will be formed at the boundary between the first and second outer surface plates 10 and 20 and the first and second inner pieces 14 and 24 (not shown). ).

Further, in the packaging container 1 according to the present embodiment, the first and second insertion pieces 16 and 26 are inserted into the first and second slits 18 and 28, but the present invention is not limited thereto. For example, the first and second slits 18, 28 and the first and second insertion pieces 16, 26 are omitted, and the first and second outer pieces 15, 25 are the first and second back plates 13, 23. Can be glued to the first and second front plates 12, 22 and the first and second back plates 13, 23, or to the first and second inner flaps 17, 27 in an inclined state. good.

Further, in the packaging container 1 according to the present embodiment, the engaging hole 30 is formed in the first inner surface plate 11 and the protrusion 31 is formed in the second inner surface plate 21, but the present invention is not limited to this. 30 may be formed on the second inner surface plate 21, and the protrusion 31 may be formed on the first inner surface plate 11. Further, the engaging holes 30 and the protrusions 31 are formed at the front end portions of the first and second inner surface plates 11 and 21, but the present invention is not limited to this, and for example, the first and second inner surface plates 11 and 21. It may be formed in a portion other than the front end portion such as a side end portion. Further, the engagement hole 30 and the protrusion 31 are each formed two, but the present invention is not limited to this, and one or more each may be formed. Further, the engaging hole 30 and the protrusion 31 may be omitted if unnecessary.

Further, in the packaging container 1 according to the present embodiment, a substantially L-shaped first opening 32 and a substantially rectangular second opening 33 are formed, but the first and second openings 32, 33 are formed. The shape, size, and formation position can be freely set. Further, the first and second openings 32 and 33 may be omitted if unnecessary.

Further, in the packaging container 1 according to the present embodiment, the first box body 1A and the second box body 1B are formed in a substantially rectangular cuboid shape having substantially the same size, but the present invention is not limited to this. The first box body 1A and the second box body 1B may be formed in different sizes. Further, the first box body 1A and the second box body 1B may have a three-dimensional shape having a polygonal shape other than a quadrangle when viewed from a plane. That is, the shapes and dimensions of the first box body 1A and the second box body 1B may be arbitrarily changed.

Further, in the packaging container 1 according to the present embodiment, the first and second front plates 12 and 22 are also inclined, but the present invention is not limited to this, and the first and second front plates 12 and 22 are the first and first. 2. The dimensions of the first and second outer surface plates 10 and 20 and the first and second inner surface plates 11 and 21 may be adjusted so as to form a substantially right angle to the outer surface plates 10, 20 and the like.

Further, the packaging container 1 according to the present embodiment is formed of paperboard, but is not limited to this, and may be formed of, for example, a resin plate, a paper or resin corrugated cardboard sheet, or the like.

The description of the above embodiment shows one aspect of the packaging container according to the present invention, and the technical scope of the present invention is not limited to the above embodiment.

1 Packaging container 1A 1st box 1B 2nd box 10 1st outer surface plate 11 1st inner surface plate 12 1st front plate 13 1st back plate 14 1st inner piece 15 1st outer piece 16 1st insertion piece 18 1st slit 20 2nd outer surface plate 21 2nd inner surface plate 22 2nd front plate 23 2nd back plate 24 2nd inner piece 25 2nd outer piece 26 2nd insertion piece 28 2nd slit 30 Engagement hole 31 Projection 32 1st opening 33 2nd opening 40 1st side plate 41 2nd side plate H Hinge wire (hinge part)

Claims (3)

A packaging container (1) in which a first box body (1A) and a second box body (1B) are connected to each other so as to be openable and closable via a hinge portion (H).
The first box body is
The first outer surface plate (10) and the first inner surface plate (11) arranged to face each other,
A first front plate (12) arranged between the front end portion of the first outer surface plate and the first inner surface plate, and
A first back plate (13) arranged between the first outer surface plate and the rear end portion of the first inner surface plate, and
A pair of first inner pieces (14) connected to both side ends of either the first outer surface plate and the first inner surface plate, and
A pair of first outer pieces (15) connected to both side ends of either the first outer surface plate and the first inner surface plate, and
A pair of first slits (18) formed at the boundary between both side ends of either the first outer surface plate and the first inner surface plate and the pair of first inner pieces.
It has a pair of first insertion pieces (16) which are connected to the tips of the pair of first outer pieces and are inserted into the pair of first slits.
The second box is
The second outer surface plate (20) and the second inner surface plate (21) arranged to face each other,
A second front plate (22) arranged between the front end portion of the second outer surface plate and the second inner surface plate, and
A second back plate (23) arranged between the second outer surface plate and the rear end portion of the second inner surface plate, and
A pair of second inner pieces (24) connected to both side ends of either the second outer surface plate and the second inner surface plate, and
A pair of second outer pieces (25) connected to both side ends of either the second outer surface plate and the second inner surface plate, and
A pair of second slits (28) formed at the boundary between both side ends of either the second outer surface plate and the second inner surface plate and the pair of second inner pieces.
It has a pair of second insertion pieces (26) which are connected to the tips of the pair of second outer pieces and are inserted into the pair of second slits.
The first back plate and the second back plate are connected to each other via the hinge portion.
The first slit and the second slit are arranged so as to be relatively offset from the first insertion piece and the second insertion piece toward the hinge portion side.
The first insertion piece and the second insertion piece are inserted into the first slit and the second slit, and the first inner surface plate and the second inner surface plate face each other to face the first box. With the body and the second box closed, the first back plate and the second back plate are inclined toward the front side from the end opposite to the hinge portion toward the hinge portion. A packaging container characterized by being An engaging hole (30) is formed in either the first inner surface plate or the second inner surface plate.
On either one of the first inner surface plate and the second inner surface plate, a protrusion (31) that engages with the engaging hole is provided in a state where the first box body and the second box body are closed. The packaging container according to claim 1 , wherein the packaging container is formed. The first inner surface plate is formed with a first opening (32) for exposing the articles housed in the first box body.
The packaging container according to claim 1 or 2 , wherein the second inner surface plate is formed with a second opening (33) for exposing the articles housed in the second box body.

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