JP2010013141A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container which is simply manufactured and has an excellent design property and an excellent security property. <P>SOLUTION: The packaging container is formed by forming a resin sheet in a predetermined shape, and folding the resin sheet at predetermined position. The packaging container 1 includes a lid 14 with an object to be packaged taken therein/therefrom, a bottom face T1 arranged substantially opposite to a top face 14A of the lid 14, and side faces 11 and 12 for connecting the top face 14A of the lid 14 to the bottom face T1. The top face 14A of the lid 14 is formed in a shape different from the shape of the bottom face T1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a packaging container, and more particularly to a packaging container having a high design property with different shapes on both bottom surfaces.

Conventionally, packaging containers using paper, synthetic resin, and the like have been used in the market, and various techniques have been proposed to increase the strength of these packaging containers, enhance designability, and increase commercial value.
In particular, in a packaging container for inserting a heavy object, the strength of the bottom surface portion is necessary.
In addition, it is necessary to devise to reduce the restriction of the display method and to solve the problem of crime prevention.

  For example, a rectangular tube-shaped packaging container having an insertion with resealability on the top surface and the bottom surface is generally known (so-called general bottomed / recessed enclosure), but these packaging containers Techniques for improving the design value of the product and increasing the product value have been developed (see, for example, Patent Document 1 and Patent Document 2).

Patent Document 1 discloses a rectangular tubular container.
The side surface of the rectangular tube-shaped container according to Patent Document 1 is curved three-dimensionally, and the design is improved as compared with a simple prismatic packaging container.
Patent Document 2 similarly discloses a packaging container.
The packaging container according to Patent Document 2 is a cylindrical body with a bottom and a bottom that has a substantially elliptical shape on both bottom surfaces, and its side surfaces are curved along the outer periphery of both bottom surfaces.
That is, it has a shape that swells in a pillow shape.
For this reason, designability improves compared with a simple prismatic packaging container.

JP 2004-160965 A Noto 3032550 gazette

However, although the packaging containers described in Patent Document 1 and Patent Document 2 are excellent in design, both the top surface and the bottom surface can be easily opened because of their structure.
Therefore, it is difficult to dispose a heavy product inside due to strength problems.
In addition, due to such a problem of strength, choices for displaying products are limited if they are placed horizontally.
Furthermore, since the bottom surface can be easily opened, it is possible to easily remove the internal product from the bottom surface.

Furthermore, since the packaging container of Patent Document 1 is laborious to manufacture, the manufacturing cost increases and the productivity is not good.
Moreover, the packaging container which concerns on patent document 1 and patent document 2 is in the range which can be generally assumed also in design, and development of the packaging container with higher design property was desired.

This invention is made | formed in view of the said situation, Comprising: The objective is to provide the packaging container which can be manufactured simply and was excellent in the designability and crime prevention property.
Another object of the present invention is to provide a packaging container which is a self-supporting type having high strength and does not limit options for displaying products.

  According to the packaging container according to claim 1, the object is a packaging container formed by forming a sheet into a predetermined shape and bending a predetermined position, and the packaging container is used for loading and unloading a packaged product. A lid portion that performs the operation, a bottom surface portion that is disposed substantially opposite to the top surface of the lid portion, and a side surface portion that connects between the top surface and the bottom surface portion of the lid portion. It is comprised, and the shape of the said top | upper surface of the said cover part is solved by being formed in the shape different from the shape of the said bottom face part.

Thus, according to the packaging container which concerns on this invention, it is comprised so that the shape of the top | upper surface and bottom face part of a cover part may differ.
For this reason, it is possible to provide a novel packaging container having a high design as compared with general cylindrical, elliptical, and rectangular cylindrical packaging containers.
Therefore, the commercial value of the packaging container can be increased.

In this case, in the packaging container according to claim 1, it is preferable that the shape of the bottom surface portion is substantially circular or substantially elliptical, and the shape of the top surface of the lid portion is substantially polygonal. It is.
Thus, in the packaging container according to the present invention, the lid top surface has a substantially polygonal shape having a plurality of vertices, and the bottom surface has a substantially circular shape or a substantially elliptical shape formed by a curved line. It is formed into a shape.
For this reason, it is possible to realize a packaging container having a new design with a high design property in which the top surface of the lid, which is mainly composed of a straight line, and the bottom surface portion, which is mainly composed of a curve, can be realized. The commercial value of the container is further improved.

  Furthermore, at this time, in the packaging container according to claim 1, the shape of the bottom surface portion is a substantially circular shape or a substantially elliptic shape, and the shape of the top surface of the lid portion is a substantially polygonal shape. The longest diagonal line of the opening on the top surface side and the longest diameter of the opening on the bottom surface portion side of the side surface portion are arranged to be substantially parallel, and the top surface of the side surface portion is disposed on the side surface portion. A folding line is formed to connect the vertices of both ends of one longest diagonal line of the opening on the side and the end points of the longest diameter of the opening on the bottom surface side of the side surface portion, and on the top surface side of the side surface portion It is preferable that the lead lower bending line that hangs down from the other apex of the opening in the direction of the bottom surface is formed to a position that does not reach the bottom surface.

  Further, at this time, the side surface portion includes an end point on the bottom surface portion side of the lower lead bent line that hangs in the direction of the bottom surface portion from the other apex of the opening on the top surface side of the side surface portion, and the side surface portion. It is preferable that a curved line is formed that connects the end points of the longest diameter of the opening on the bottom surface portion side that are closer to each other.

In the packaging container according to the present invention, as described above, the shape of the top surface of the lid portion is configured to be a substantially polygonal shape having a plurality of vertices, and the bottom surface is a substantially circular shape or a substantially oval shape configured by a curved line. It is formed into a shape.
In this way, the lid top surface, which has a straight line as the main component, and the bottom surface portion, which has a main component as a curve, coexist. In addition to the fold line and, if necessary, an auxiliary curve line is required.
Therefore, in the present invention, a folding line is formed that connects the apexes at both ends of one longest diagonal line of the opening on the top surface side of the side surface portion and both end points of the longest diameter of the opening on the bottom surface side of the side surface portion. The distance between the bottom end of the fold line that hangs in the direction of the bottom from the other apex of the opening on the top side of the side and the end of the longest diameter of the opening on the bottom of the side A curved line connecting the end points is formed as an auxiliary line.
For this reason, when the packaging container according to the present invention is three-dimensionally formed, the side surface portion is bent along these auxiliary lines and curved along the curved line, and the substantially polygonal shape and the bottom surface portion of the top surface of the lid portion. The shape difference between the substantially circular shape or the substantially elliptical shape is absorbed, and a stable three-dimensional shape is maintained.
In other words, simply by assembling into a three-dimensional shape, the side part can be easily bent along the folding line and curved along the bending line, and the packaging container having different shapes on the top and bottom parts of the lid can be easily and stably maintained. Formed with.

Moreover, the packaging container which concerns on this invention is suitable in the said bottom part being a closed type connected with a part of said side part.
Furthermore, it is preferable that the outer peripheral portion of the bottom surface portion is formed with a joint portion that falls downward from the outer peripheral portion, and the outer surface of the joint portion and the inner surface of the side surface portion are bonded together. It is.

Thus, the packaging container according to the present invention is a closed type in which the bottom surface portion is fixed to the side surface portion.
Therefore, as compared with a container whose upper and lower bottom surfaces can be opened, it is possible to prevent a crime such that the load bearing strength is increased and the product is pulled out from the bottom.
Therefore, according to this invention, a packaging container provided with high intensity | strength and crime prevention can be provided.

  At this time, the median line of the bottom surface portion is a median fold line, and the bottom surface portion and the joint portion are folded in such a manner that the median fold line is folded in the upward direction and folded. The bottom surface of the side surface portion is bonded to the inner surface of the opening end portion of the side surface portion, and the bottom surface of the median fold line is returned to the unfolded state. It is preferable that the boundary line between the portion and the joint is bent and falls from the outer peripheral portion of the bottom portion toward the lower side, and the bottom surface is formed into a curved surface projecting downward.

This configuration eliminates the need for complicated bonding work and bottom face creation work when assembling three-dimensionally, and simply inserts the bottom face part and the joined part that are folded at the midline fold line into the side face part for bonding. By simply returning the folded midline, the bottom surface protrudes downward to form a curved surface.
Therefore, the packaging container according to the present invention can be easily assembled.

Also, at this time, the boundary line between the bottom surface portion and the joint portion is bent and the joint portion is lowered downward from the outer peripheral portion of the bottom surface portion, and the bottom surface portion of the side surface portion bonded to the joint portion It is preferable that the opening end portion on the side becomes a foot portion and can become independent.
By being configured in this way, the packaging container according to the present invention has a wide range of display method choices and is not limited in use.

In addition, the packaging container which concerns on this invention is a form which forms a resin sheet in a predetermined shape, for example by punching molding, and performs a three-dimensional shape process by bending molding.
For this reason, a large-scale vacuum forming apparatus is not required as compared with processing by vacuum forming, and the cost for creating a mold required for each shape can be reduced.
Furthermore, since a large amount of products can be molded at the same time, the manufacturing cost can be reduced.

  In addition, since vacuum molded products cannot be crushed in two dimensions during transportation and disposal, there is a problem that the volume increases during transportation and is difficult to dispose of. Since the container is originally a three-dimensional assembly of the developed shape, it can be easily folded into a compact state during transportation or disposal.

The packaging container according to the present invention can be easily manufactured, and the top surface and the bottom surface of the lid part are different in shape, and are innovative and extremely novel in design compared to conventional packaging containers. It has become.
For this reason, a packaging container with high commercial value can be provided.
In addition, since the bottom portion has a closed structure, it is excellent in load bearing strength and can effectively prevent crimes such as removing a product from the bottom.
Therefore, a packaging container with high strength and crime prevention can be provided.
In addition, it is possible to provide a packaging container that is a self-supporting type having high strength and that does not limit the options for displaying products.
Further, the manufacturing cost can be reduced as compared with a vacuum molded product, and it can be easily folded and compacted at the time of transportation or disposal.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.
The present embodiment relates to a packaging container that can be easily manufactured and has excellent design properties and crime prevention properties.
In addition, the packaging container according to the present embodiment is a self-supporting type having high strength, and does not limit options for displaying products.

1 to 14 show an embodiment of the present invention.
1 to 6 are views showing a first embodiment of the present invention. FIG. 1 is a development view of the first packaging container, and FIGS. 2 and 3 are explanatory views showing the assembled state of the first packaging container. 4 is each side view of the first packaging container, FIG. 5 is a perspective view of the first packaging container, and FIG. 6 is a partial perspective view showing a bottom surface portion of the first packaging container.

  FIGS. 7 to 9 are views showing a second embodiment of the present invention. FIG. 7 is a development view of the second packaging container, FIG. 8 is a side view of the second packaging container, and FIG. It is a perspective view of a packaging container.

  10 to 14 are views showing a third embodiment of the present invention. FIG. 10 is a developed view of the third packaging container, FIG. 11 is an explanatory view showing an assembled state of the third packaging container, and FIG. FIG. 13 is a perspective view of the third packaging container, and FIG. 14 is a partial perspective view showing the bottom surface of the third packaging container.

(First embodiment)
The structure of the first packaging container 1 will be described with reference to FIGS.
The first packaging container 1 according to the present embodiment is a paper packaging container whose inside is a cavity for product placement.
However, the material of the first packaging container 1 is not limited to paper, and any material may be selected as long as it does not depart from the spirit of the present invention. For example, you may form with general synthetic resins, such as PP (polypropylene) and PE (polyethylene).

As shown in FIG. 1, the first packaging container 1 according to this embodiment includes a first back surface portion 11, a first surface portion 12, a first bottom portion 13, a first lid portion 14, and first flaps 15 and 16. Configured.
The first back surface portion 11 according to the present embodiment is a substantially rectangular surface, and a substantially Y-shaped bent line is stamped.
The first back surface portion 11 and the first front surface portion 12 constitute a side surface portion.

The bending line includes a lower lead bending line L11 that hangs from the midpoint of the short side on the upper side (the side on which the first lid portion 14 is formed) to the vicinity of the center of gravity of the first back surface portion 11, and the lower bending of the lead. It consists of two curved lines L12 and L13 extending while projecting upward from the end point of the line L11 toward the long side (that is, toward both ends).
The first back surface portion 11 is the back side surface of the first packaging container 1.
Note that a margin G1 is formed on the long side of the first back surface portion 11.

The first surface portion 12 according to the present embodiment is a substantially rectangular surface formed continuously with the first back surface portion 11.
The first front surface portion 12 is configured to be symmetrical with the first back surface portion 11 with respect to the bend line M1, and a bent line having the same configuration as the bent line formed on the first back surface portion 11 is formed. Has been.
That is, a bending line in which a substantially Y shape is formed by the lead-under bending line L14 and the two bending lines L15 and L16 is stamped.
The first surface portion 12 is a front side surface of the first packaging container 1.

The first bottom portion 13 according to the present embodiment is a surface that extends to the lower side of the first back surface portion 11 (end point side of the curved lines L12, L13).
The boundary line between the first back surface portion 11 and the first bottom portion 13 is referred to as a “bending line M2”.
At the center of the first bottom portion 13, a fold line M3 is stamped in parallel with the fold line M2.

Further, a substantially arc-shaped fold line M4 and a fold line M5 are pressed so as to surround the fold line M3.
That is, a substantially elliptical fold line is formed by the substantially arc-shaped fold line M4 and the fold line M5, and the fold line M3 is a substantially elliptical fold line formed by the fold line M4 and the fold line M5. It is a long axis.
The fold line M3 corresponds to a “midline fold line”.

The substantially elliptical surface formed by the fold line M4 and the fold line M5 is the bottom surface of the first packaging container 1. Hereinafter, a substantially elliptical surface formed by the fold line M4 and the fold line M5 is referred to as a “first packaging container bottom surface T1”.
The first packaging container bottom surface T1 of the substantially elliptical portion surrounded by the substantially arc-shaped folding line M4 and the folding line M5 corresponds to the “bottom surface portion”.
Further, the portion of the first bottom portion 13 other than the first packaging container bottom surface T1 (that is, the portion outside the substantially elliptical surface formed by the fold line M4 and the fold line M5) is folded inside during three-dimensional molding. Then, the first packaging container 1 is adhered to the vicinity of the lower short side of the first back surface portion 11 and the first surface portion 12 to become a foot portion for the first packaging container 1 to stand on its own.
This portion corresponds to a “joint portion”.

The 1st cover part 14 which concerns on this embodiment is a substantially rectangular surface, and has the top | upper surface part 14A and the insertion part 14B, and is comprised.
The top surface portion 14A is continuous with the upper side of the first surface portion 12, and a substantially rectangular insertion portion 14B extends from a side facing the continuous side.

Hereinafter, the boundary line between the top surface portion 14A and the first surface portion 12 is referred to as a “fold line M6”, and the boundary property between the top surface portion 14A and the insertion portion 14B is referred to as a “fold line M9”.
This 1st cover part 14 is a part used as the cover of the 1st packaging container 1, 14 A of top | upper surface parts become the top | upper surface of the 1st packaging container 1, and the insertion part 14B becomes an insertion fixing piece of a lid | cover.

The first flaps 15 and 16 according to this embodiment are substantially rectangular surfaces.
The first flaps 15 and 16 are respectively continuous with the upper side of the first back surface part 11 and the upper side of the first surface part 12.
Hereinafter, the boundary line between the first flap 15 and the first back surface portion 11 is referred to as a “fold line M7”, and the boundary line between the first flap 16 and the first surface portion 12 is referred to as a “fold line M8”.

Next, the assembled state of the first packaging container 1 will be described with reference to FIGS. 2 and 3.
As shown in FIG. 2A, first, the first bottom portion 13 is valley-folded from the fold line M2 and fold-folded from the fold line M3.
Further, a portion of the first bottom portion 13 other than the first packaging container bottom surface T1 (that is, a portion outside the substantially elliptical surface formed by the fold line M4 and the fold line M5: hereinafter referred to as “joint portion U1”. ), And an adhesive is applied to the glue margin G1.

In this state, the first back surface portion 11 and the first front surface portion 12 are folded around the fold line M1, and fixed with an adhesive applied to the glue margin G1, and the folded first bottom portion 13 is Fold between the first back surface portion 11 and the first front surface portion 12.
The state folded in this way is the state shown in FIG.
The so-called “shipment time” is shipped in this state.

When the point H is pressed in the state of FIG. 2B, the folded fold line M3 is restored, the first packaging container bottom surface T1 is pushed outward, and the bottom of the first packaging container 1 is Complete.
In addition, when the 1st packaging container bottom face T1 is extruded to an outer side direction, it is designed so that a return sound may be produced when the bending line M3 of the 1st packaging container bottom face T1 which has fixed hardness returns.

This return sound functions as a sound for notifying that the bottom of the first packaging container 1 is completed by completely pushing out the first packaging container bottom surface T1.
That is, when assembling, the operator can recognize that the bottom of the first packaging container 1 is completed by recognizing the return sound.

Next, as shown in FIG. 3, the first packaging containers 1 are completed by bending the first flaps 15 and 16 inward and inserting the insertion portion 14 </ b> B of the first lid portion 14.
At this time, the top surface portion 14 </ b> A becomes the top surface of the first packaging container 1.

Each side view of the first packaging container 1 configured as described above is shown in FIG. 4, and a perspective view is shown in FIG.
As shown in FIG. 4A, the top surface 14A of the first packaging container 1 according to the present embodiment is substantially rectangular, and as shown in FIG. 4C, the first packaging container according to the present embodiment. 1 1st packaging container bottom face T1 is substantially elliptical shape.
Then, in order to physically absorb the difference in shape between these two surfaces and to give a gentle curved surface excellent in design to the side surface, the lower lead bending lines L11, L14 and the bending lines L12, L13, L15, L16 are stamped. Has been.

  As shown in FIG. 5, the first packaging container 1 according to the present embodiment thus takes different shapes on the top surface 14A and the first packaging container bottom surface T1, and is stamped to realize the different shapes. The design property which was excellent in the side surface is given by bending line L11, L14 under lead, and bending lines L12, L13, L15, and L16.

Moreover, the mode of 1st packaging container bottom face T1 which concerns on FIG. 6 at this embodiment is shown.
Thus, while the 1st packaging container bottom face T1 which concerns on this embodiment protrudes outside in a substantially ellipse shape, the junction part U1 is the 1st back surface part 11 and the 1st surface part 12 inside lower side short side vicinity This portion is a foot portion for allowing the first packaging container 1 to stand on its own.
Therefore, this 1st packaging container 1 can become independent, and the freedom degree of the display method increases.

The first packaging container bottom surface T1 is a closed type projecting outward in a substantially elliptical shape.
That is, the first packaging container bottom surface T1 cannot be opened unless the adhesion of the joint portion U1 is physically peeled off or the portion is not physically damaged.
For this reason, it becomes difficult to remove the product from the bottom surface portion, and the crime prevention property is excellent.

(Second Embodiment)
Next, the structure of the second packaging container 2 will be described with reference to FIGS.
The second packaging container 2 according to the present embodiment is a paper packaging container whose inside is a cavity for product placement.

In addition, since the 2nd packaging container 2 in this embodiment is the same structure as the 1st packaging container 1 of an example except a different side shape, the overlapping description is abbreviate | omitted or simplified.
The material of the second packaging container 2 is not limited to paper, and any material may be selected as long as it does not depart from the spirit of the present invention.

As shown in FIG. 7, the second packaging container 2 according to the present embodiment includes a second back surface portion 21, a second surface portion 22, a second bottom portion 23, a second lid portion 24, and second flaps 25 and 26. Configured.
The second back surface portion 21 according to the present embodiment is a substantially isosceles trapezoidal surface having an upper side that is a short side, and a substantially Y-shaped bent line is stamped.

The bending line includes a lower lead bending line L21 that hangs from the midpoint of the short side of the upper side (the side on which the second lid portion 24 is formed) to the vicinity of the center of gravity of the second back surface portion 22, and the lower bending of the lead. It is composed of two curved lines L22 and L23 extending from the end point of the line toward the long side (that is, toward both ends) while curving upward.
The second back surface portion 21 is the back side surface of the second packaging container 2.
Note that a margin G2 is formed on the side of the second back surface portion 21.

Further, the second front surface portion 22 according to the present embodiment is a substantially isosceles trapezoidal surface formed continuously with the second back surface portion 21.
The second surface portion 22 is configured to be symmetrical with the second back surface portion 21 with respect to the bending line M11, and a bending line having the same configuration as the bending line formed on the second back surface portion 21 is formed. Has been.
That is, a bending line in which a substantially Y shape is formed by the lead-under bending line L24 and the two bending lines L25 and L26 is stamped.
The second surface portion 22 is the front side surface of the second packaging container 2.

The second bottom portion 23 according to the present embodiment is a surface extending to the lower side of the second back surface portion 21 (the end point side of the curved lines L22 and L23).
The boundary line between the second back surface portion 21 and the second bottom portion 23 is referred to as a “bending line M12”.
At the center of the second bottom 23, a fold line M13 is stamped in parallel with the fold line M12.

A substantially arc-shaped fold curve M14 and a fold line M15 are stamped so as to surround the fold line M13.
That is, a substantially elliptical fold line is formed by the substantially arc-shaped fold line M14 and the fold line M15, and the fold line M13 is a substantially elliptical fold line formed by the fold line M14 and the fold line M15. It is a long axis.

  The substantially elliptical surface formed by the fold line M14 and the fold line M15 is the bottom surface of the second packaging container 2. Hereinafter, a substantially elliptical surface formed by the fold line M14 and the fold line M15 is referred to as a “second packaging container bottom surface T2”.

  In addition, a portion of the second bottom portion 23 other than the second packaging container bottom surface T2 (that is, a portion outside the substantially elliptical surface formed by the fold line M14 and the fold line M15) is folded inside during three-dimensional molding. Then, it is adhered to the vicinity of the lower short side of the second back surface portion 21 and the second surface portion 22 and becomes a foot portion for the second packaging container 2 to stand on its own.

In addition, substantially arc-shaped auxiliary lines M13a and M13b are stamped on the second packaging container bottom surface T2 according to the present embodiment.
The auxiliary lines M13a and M13b are substantially arc-shaped curves that are convex toward the middle point of the folding line M13 that is formed symmetrically with respect to a line that passes through the middle point of the folding line M13 and extends in the vertical direction. It becomes an auxiliary broken line for forming the three-dimensional shape of the packaging container bottom surface T2.

The 2nd cover part 24 which concerns on this embodiment is a substantially rectangular surface, and has the top | upper surface part 24A and the insertion part 24B, and is comprised.
The top surface portion 24A is continuous with the upper side of the second surface portion 21, and a substantially rectangular insertion portion 24B extends from a side facing the continuous side.

Hereinafter, the boundary line between the top surface portion 24A and the second surface portion 21 is referred to as a “bending line M16”, and the boundary line between the top surface portion 24A and the insertion portion 24B is referred to as a “folding line M19”.
This 2nd cover part 24 is a part used as the lid | cover of the 2nd packaging container 2, 24A of top surface parts become the top | upper surface of the 2nd packaging container 2, and the insertion part 24B becomes an insertion fixing piece of a lid | cover.

The second flaps 25 and 26 according to the present embodiment are substantially rectangular surfaces.
The second flaps 25 and 26 are respectively continuous with the upper side of the second back surface portion 21 and the upper side of the second surface portion 22.
Hereinafter, the boundary line between the second flap 25 and the second back surface portion 21 is referred to as a “fold line M17”, and the boundary line between the second flap 26 and the second surface portion 22 is referred to as a “fold line M18”.

Since the method of assembling the second packaging container 2 is the same as the method of assembling the first packaging container 1, it will be briefly described.
That is, the second bottom portion 23 is valley-folded from the fold line M12 and fold-folded from the fold line M13.
Further, in the second bottom portion 23, a portion other than the second packaging container bottom surface T2 (that is, a portion outside the substantially elliptical surface formed by the fold line M14 and the fold line M15: hereinafter referred to as “joint portion U2”). ), And an adhesive is applied to the glue margin G2.

  In this state, the second back surface portion 21 and the second front surface portion 22 are folded around the folding line M11 and fixed with the adhesive applied to the glue margin G2, and the bent second bottom portion 23 is Fold between the second back surface portion 21 and the second front surface portion 22.

When the vicinity of both ends of the second bottom portion 23 is pressed in the folded state as described above, the folded folding line M13 is restored, and the second packaging container bottom surface T2 is pushed outward and the second packaging container. The bottom of 2 is completed.
At this time, the curved shape of the bottom surface T2 of the second packaging container is reliably formed by the auxiliary lines M13a and M13b.

In addition, when the 2nd packaging container bottom face T2 is extruded to an outer side direction, it is designed so that a return sound may be produced when the bending line M13 of the 2nd packaging container bottom face T2 which has fixed hardness returns.
This return sound functions as a sound for notifying that the bottom of the second packaging container 2 is completed by completely extruding the second packaging container bottom surface T2.
That is, when assembling, the operator can recognize that the bottom of the second packaging container 2 is completed by recognizing the return sound.

Next, the second packaging container 2 is completed by bending the second flaps 25 and 26 inward and inserting the insertion portion 24 </ b> B of the second lid portion 24.
At this time, the top surface portion 24 </ b> A becomes the top surface of the second packaging container 2.

Each side view of the second packaging container 2 configured in this manner is shown in FIG. 8, and a perspective view is shown in FIG.
As shown in FIG. 8 (a), the top surface 24A of the second packaging container 2 according to this embodiment is substantially rectangular, and as shown in FIG. 8 (c), the second packaging container according to this embodiment. The 2nd 2nd packaging container bottom face T2 is substantially elliptical shape.

  Then, as shown in FIG. 8 (b), in order to physically absorb the difference in shape between these two surfaces and to give a gentle curved surface excellent in design to the side surface, Curves L22, L23, L25, and L26 are stamped.

  As shown in FIG. 9, the second packaging container 2 according to the present embodiment thus takes different shapes on the top surface 24A and the second packaging container bottom surface T2, and is stamped to realize the different shapes. Excellent design properties are imparted to the side surfaces by the lead lower bending lines L21, L24 and the bending lines L22, L23, L25, L26.

Similarly to the first packaging container 1, the second packaging container bottom surface T <b> 2 according to the present embodiment projects outward in a substantially elliptical shape, and the joining portion U <b> 2 includes the second back surface portion 21 and the second surface portion 22 inside. It is adhered to the vicinity of the lower side short side of the side, and this portion is a foot portion for the second packaging container 2 to stand on its own.
Therefore, this 2nd packaging container 2 can also become independent, and the freedom degree of the display method increases.

The second packaging container bottom surface T2 is also a closed type projecting outward in a substantially elliptical shape.
That is, the second packaging container bottom surface T2 cannot be opened unless the adhesion of the joint portion U2 is physically peeled off or the portion is not physically damaged.
For this reason, it becomes difficult to remove the product from the bottom surface portion, and the crime prevention property is excellent.

(Third embodiment)
Next, the structure of the third packaging container 3 will be described with reference to FIGS. 10 to 14.
The third packaging container 3 according to the present embodiment is a paper packaging container whose inside is a cavity for product placement.
In addition, the 3rd packaging container 3 in this embodiment differs in the top | upper surface shape from the 1st packaging container 1 of a previous example.
The material of the third packaging container 3 is not limited to paper, and any material may be selected as long as it does not depart from the spirit of the present invention.

As shown in FIG. 10, the third packaging container 3 according to this embodiment includes a third back surface portion 31, a third surface portion 32, a third bottom portion 33, a third lid portion 34, and third flaps 35 and 36. Configured.
The third back surface portion 31 according to the present embodiment is a substantially rectangular surface, and is formed by pressing two substantially U-shaped bent lines.

The bending line includes a lead lower bending line L31 that hangs down from the short side of the upper side (side on which the third lid portion 34 is formed) toward the lower side of the third back surface portion 32, and this A curved line L33 extending while curving upward from the end point of the lower bent lead line toward the long side (that is, toward both ends), the lower bent lead line L31 and the curved line L33, and both short sides of the third back surface portion 31 It is composed of a lead lower bending line L32 and a bending line L34 which are formed in line symmetry with respect to a straight line connecting both middle points of the sides (horizontally extending sides arranged vertically).
The third back surface portion 31 is the back side surface of the third packaging container 3.
Note that a margin G3 is formed on the side of the third back surface portion 31.

In addition, the third front surface portion 32 according to the present embodiment is a substantially rectangular surface formed continuously with the third back surface portion 31.
The third surface portion 32 is configured to be symmetrical with the third back surface portion 31 with respect to the bending line M21, and a bent line having the same configuration as the bent line formed on the third back surface portion 31 is formed. Has been.
In other words. Two substantially bent lines are pressed.
The third surface portion 32 becomes the front side surface of the third packaging container 3.

The third bottom portion 33 according to the present embodiment is a surface that extends to the lower side of the third back surface portion 31 (the end point side of the curved lines L33 and L34).
The boundary line between the third back surface portion 31 and the third bottom portion 33 is referred to as a “bending line M22”.
At the center of the third bottom 33, a fold line M23 is stamped in parallel with the fold line M22.

A substantially arc-shaped fold curve M24 and a fold line M25 are stamped so as to surround the fold line M23.
That is, a substantially elliptical fold line is formed by the substantially arc-shaped fold line M24 and the fold line M25, and the fold line M23 is a substantially elliptical fold line formed by the fold line M24 and the fold line M25. It is a long axis.

  The substantially elliptical surface formed by the fold line M24 and the fold line M25 is the bottom surface of the third packaging container 3. Hereinafter, the substantially elliptical surface formed by the fold line M24 and the fold line M25 is referred to as a “third packaging container bottom surface T3”.

  In addition, a portion of the third bottom 33 other than the third packaging container bottom surface T3 (that is, a portion outside the substantially elliptical surface formed by the fold line M24 and the fold line M25) is folded inside during three-dimensional molding. Thus, the third packaging container 3 is adhered to the vicinity of the lower side short side of the third back surface portion 31 and the third surface portion 32 to become a foot portion for the third packaging container 3 to be self-supporting.

The third lid portion 34 according to the present embodiment is a substantially hexagonal surface and includes a top surface portion 34A and an insertion portion 34B.
The top surface portion 34 </ b> A is continuous with the upper side of the third surface portion 32.
The insertion portion 34B includes a first insertion piece 341 and second insertion pieces 342 and 342.

The first insertion piece 341 is a side facing a boundary line between the top surface portion 24A and the third surface portion 32 (hereinafter, the boundary line between the top surface portion 34A and the third surface portion 32 is referred to as a “bending line M26”). The first insertion piece 341 having a substantially rectangular shape extends from the side.
In addition, substantially triangular second insertion pieces 342 and 342 extend on both sides of the folding line M26.

Hereinafter, the boundary line between the top surface portion 24A and the first insertion piece 341 is “folding line M29a”, and the boundary line between the top surface portion 24A and the second insertion pieces 342 and 342 is respectively “folding line M29b” and “folding line M29c”. I write.
The third lid portion 34 is a portion that becomes a lid of the third packaging container 3, and the top surface portion 34 </ b> A becomes the top surface of the third packaging container 3, and the insertion portion 34 </ b> B (first insertion piece 341, second insertion piece 342). , 342) is an insertion fixing piece of the lid.

The third flaps 35 and 36 according to this embodiment are substantially hexagonal surfaces.
The third flaps 35 and 36 have a shape that matches the shape of the inner corner of the upper opening formed when the third packaging container 3 is three-dimensionally assembled.
The third flaps 35 and 36 are respectively continuous with both end portions on the upper side of the third back surface portion 31.
Hereinafter, the boundary line between the third flap 35 and the third back surface portion 31 is referred to as a “fold line M27”, and the boundary line between the third flap 36 and the third back surface portion 31 is referred to as a “fold line M28”.

FIG. 11 shows the assembled state of the third packaging container 3.
In addition, since the assembly method of the 3rd packaging container 3 is the same as the assembly method of the 1st packaging container 1, it demonstrates easily.
That is, the third bottom portion 33 is valley-folded from the fold line M22 and mountain-folded from the fold line M23.

  Further, in the third bottom portion 33, a portion other than the third packaging container bottom surface T3 (that is, a portion outside the substantially elliptical surface formed by the fold line M24 and the fold line M25: hereinafter referred to as “joint portion U3”). ), And an adhesive is applied to the glue margin G3.

  In this state, the third back surface portion 31 and the third front surface portion 32 are folded around the folding line M21 and fixed with an adhesive applied to the glue margin G3, and the bent third bottom portion 33 is Fold between the third back surface portion 31 and the third front surface portion 32.

  When the vicinity of both ends of the third bottom portion 33 is pressed in the folded state as described above, the folded folding line M23 is restored, and the third packaging container bottom surface T3 is pushed outward, and the third packaging container. The bottom of 3 is completed.

In addition, when the 3rd packaging container bottom face T3 is extruded to an outer side direction, it is designed so that a return sound may be produced by returning the fold line M23 of the 3rd packaging container bottom face T3 having a certain hardness.
This return sound functions as a sound for notifying that the bottom of the third packaging container 3 is completed by completely extruding the third packaging container bottom surface T3.
That is, when assembling, the operator can recognize that the bottom of the third packaging container 3 is completed by recognizing the return sound.

Next, as shown in FIG. 11, the third flaps 35 and 36 are bent inward, and the first insertion portion 341 and the second insertion portions 342 and 342 of the third lid portion 34 are inserted to thereby insert the third packaging container. 3 is completed.
At this time, the top surface portion 34 </ b> A becomes the top surface of the third packaging container 3.

Each side view of the third packaging container 3 thus configured is shown in FIG. 12, and a perspective view is shown in FIG.
As shown in FIG. 12 (a), the top surface 34A of the third packaging container 3 according to this embodiment has a substantially hexagonal shape, and as shown in FIG. 12 (c), the third packaging according to this embodiment. The 3rd packaging container bottom face T3 of the container 3 is substantially elliptical shape.
And as shown in FIG.12 (b), in order to absorb the difference of the shape of these both surfaces physically, and to give the gentle curve which was excellent in the design to a side surface, lead lower bending line L31, L32, L35 , L36 and curved lines L33, L34, L37, L38 are pressed.

  As shown in FIG. 13, the third packaging container 3 according to the present embodiment thus takes different shapes on the top surface 34 </ b> A and the third packaging container bottom surface T <b> 3, and is pressed to realize the different shapes. The design characteristics which were excellent in the side surface are provided by the bending line L31, L32, L35, L36 under the lead and the bending lines L33, L34, L37, L38.

Moreover, the mode of the 3rd packaging container bottom face T3 concerning this embodiment is shown in FIG.
Thus, like the 1st packaging container 1, while the 3rd packaging container bottom face T3 which concerns on this embodiment protrudes outside in a substantially ellipse shape, the junction part U3 is the 3rd back surface part 31 and the 3rd surface part 32. Adhering to the vicinity of the lower side short side on the inner side, this part is a foot part for the third packaging container 3 to stand on its own.
Therefore, the third packaging container 3 can also stand on its own, and the degree of freedom in the display method is increased.

The third packaging container bottom surface T3 is also a closed type projecting outward in a substantially elliptical shape.
That is, the third packaging container bottom surface T3 cannot be opened unless the adhesion of the joint portion U3 is physically peeled off or the portion is not physically damaged.
For this reason, it becomes difficult to remove the product from the bottom surface portion, and the crime prevention property is excellent.

Next, an example of a method for manufacturing the first packaging container 1, the second packaging container 2, and the third packaging container 3 according to the present embodiment will be briefly described.
Note that the manufacturing method is not limited to this, and the method for creating the development view may be performed by any method such as creation by a rolling die.

First, a paper sheet is prepared.
In this embodiment, paper is used, but the material is not limited to this, and a synthetic resin sheet such as polypropylene or polyethylene terephthalate may be used.
Next, the developed shape of the first packaging container 1, the second packaging container 2, the third packaging container 3 and the like is punched out from the paper sheet.

This punching is performed by a flat plate punching apparatus in the present embodiment.
The flat plate punching device is a known punching device, and includes a lower platen, an upper platen, an elevating mechanism, and a wooden mold.
The lower platen is a substantially rectangular flat plate on which a paper sheet as a punched object is placed.

Further, an elevating mechanism is disposed on the back side (lower side) of the lower platen, and the lower platen is moved up and down.
The upper platen is disposed on the upper side of the lower platen so as to face the surface side (upper surface) of the lower platen.

The upper platen is provided with a cheese, and the wooden shape is held by the cheese.
In the wooden mold, blades such as a cutting blade for pushing through a paper sheet, a pushing blade for making a crease, and a sewing blade for making a perforation are planted according to the shape to be punched.
For this reason, when this flat plate punching device is operated and the elevating mechanism is driven, the paper sheet comes into contact with the blade planted in the wooden mold, and the product of a predetermined shape has a crease and a perforation from the paper sheet. Punched out.

If a wooden mold is used in this way, a plurality of development views can be punched out by a single punching process, depending on how each blade is implanted.
For this reason, a product can be manufactured at a lower cost than a vacuum molded product.

Next, the developed view is folded along the crease, and necessary portions are bonded.
This operation can be performed by machine bonding.
In addition, in this state, each 1st packaging container 1, the 2nd packaging container 2, and the 3rd packaging container 3 are the states folded compactly.

  Normally, in such a state, the first packaging container 1, the second packaging container 2, and the third packaging container 3 are transported to the manufacturer that manufactures the product to be packaged, and become a three-dimensional shape that is a finished product. After being assembled, the packaged product is inserted.

  Since the first packaging container 1, the second packaging container 2, and the third packaging container 3 according to the present embodiment can be transported in a compact state, the first packaging container 1, 2 The volume occupied by the packaging container 2 and the third packaging container 3 can be reduced, and the space for storing the first packaging container 1, the second packaging container 2 and the third packaging container 3 can be kept small. it can.

  In the above description, the bottom surface has a substantially elliptical shape and the top surface has a substantially rectangular shape and a substantially hexagonal combination example. However, the combination of the bottom surface and the top surface shape is not limited to this. Any combination is possible as long as it does not depart from the spirit of the invention.

It is an expanded view of the expanded view of the 1st packaging container which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the assembly state of the 1st packaging container which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the assembly state of the 1st packaging container which concerns on the 1st Embodiment of this invention. It is each side view of the 1st packaging container which concerns on the 1st Embodiment of this invention. It is a perspective view of the 1st packaging container which concerns on the 1st Embodiment of this invention. It is a fragmentary perspective view which shows the bottom face part of the 1st packaging container which concerns on the 1st Embodiment of this invention. It is an expanded view of the 2nd packaging container which concerns on the 2nd Embodiment of this invention. It is each side view of the 2nd packaging container which concerns on the 2nd Embodiment of this invention. It is a perspective view of the 2nd packaging container which concerns on the 2nd Embodiment of this invention. It is an expanded view of the 3rd packaging container which concerns on the 3rd Embodiment of this invention. It is explanatory drawing which shows the assembly state of the 3rd packaging container which concerns on the 3rd Embodiment of this invention. It is each side view of the 3rd packaging container which concerns on the 3rd Embodiment of this invention. It is a perspective view of the 3rd packaging container concerning a 3rd embodiment of the present invention. It is a fragmentary perspective view which shows the bottom face part of the 3rd packaging container which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st packaging container 2 2nd packaging container 3 3rd packaging container 11 1st back surface part 12 1st surface part 13 1st bottom part 14 1st cover part 14A Top surface part 14B Insertion parts 15 and 16 1st flap 21 2nd back surface Portion 22 second surface portion 23 second bottom portion 24 second lid portion 24A top surface portion 24B insertion portions 25, 26 second flap 31 third back surface portion 32 third surface portion 33 third bottom portion 34 third lid portion 34A top surface portion 34B Insertion portion 35, 36 Third flap 341 First insertion piece 342 Second insertion piece G1, G2, G3 Adhesive margins L11, L14, L21, L24, L31, L32, L35, L36 Lead lower bending line L12, L13, L15, L16, L22, L23, L25, L26, L33, L34, L37, L38 Curved lines M1, M2, M3, M4, M5, M6, M7, M8, M9, M11, M12, M13
M14, M15, M16, M17, M18, M19, M21, M22, M23, M24, M25, M26, M27, M28, M29, M29a, M29b, M29c Bending line M13a, M13b Auxiliary line T1 First packaging container bottom surface T2 No. 2 Bottom of packaging container T3 Third packaging container bottom U1, U2, U3 joint

Claims (8)

A packaging container formed by forming a sheet into a predetermined shape and bending a predetermined position,
The packaging container includes a lid portion for taking in and out the packaged article, a bottom surface portion disposed substantially opposite to the top surface of the lid portion, and between the top surface and the bottom surface portion of the lid portion. And a side part to be connected,
The packaging container is characterized in that the shape of the top surface of the lid portion is different from the shape of the bottom surface portion.   2. The packaging container according to claim 1, wherein the shape of the bottom surface portion is a substantially circular shape or a substantially elliptic shape, and the shape of the top surface of the lid portion is a substantially polygonal shape. The shape of the bottom portion is substantially circular or substantially elliptical, and the shape of the top surface of the lid portion is substantially polygonal.
One longest diagonal line of the opening on the top surface side of the side surface portion and the longest diameter of the opening on the bottom surface portion side of the side surface portion are arranged to be substantially parallel,
The side surface portion is formed with a fold line connecting a vertex of both ends of one longest diagonal line of the opening on the top surface side of the side surface portion and both end points of the longest diameter of the opening on the bottom surface side of the side surface portion. As
The lead lower bending line that hangs down from the other apex of the opening on the top surface side of the side surface portion toward the bottom surface portion is formed to a position that does not reach the bottom surface portion. Packaging containers. In the side part,
The end point on the bottom surface side of the lower lead bending line that hangs in the direction of the bottom surface from the other apex of the opening on the top surface side of the side surface portion, and the longest diameter of the opening on the bottom surface side of the side surface portion The packaging container according to claim 3, wherein a curved line is formed connecting the end points of the two end points closer to each other.   The packaging container according to claim 1, wherein the bottom surface portion is a closed type connected to a part of the side surface portion. The outer peripheral portion of the bottom portion is formed with a joint that falls downward from the outer peripheral portion,
The packaging container according to claim 5, wherein an outer surface of the joint portion and an inner surface of the side surface portion are bonded to each other. The midline of the bottom portion is a midline fold line,
The bottom surface portion and the joint portion are inserted into the side surface portion in a state in which the median fold line is folded in a mountain shape toward the upper direction, and on the bottom surface portion side of the joint portion and the side surface portion. The surface inside the opening end is bonded,
By returning the fold of the median fold line to the unfolded state, the boundary line between the bottom surface portion and the joint portion is bent and falls downward from the outer peripheral portion of the bottom surface portion, and the bottom surface is directed downward. The packaging container according to claim 6, wherein the packaging container is formed on an overhanging curved surface.   A boundary part between the bottom surface part and the joint part is bent and falls downward from the outer peripheral part of the bottom surface part, and an opening end part on the bottom surface part side of the side part bonded to the joint part The packaging container according to claim 7, wherein the container becomes a foot part and can become independent.

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