JP2024037048A - Method for using packaging container and packaging container - Google Patents

Abstract

To provide a method for using a packaging container and a packaging container that contribute to improvement in handling of a medium plate and improve overall usability.SOLUTION: A method of using a packaging container including an inner tray 1 for storing another content which is mounted detachably and attachably so as to close an opening 1a of a container body M in which the content is stored, and a lid body 2 that is integrally formed with the inner tray 1 via a hinge 3 and closes the opening 1a of the inner tray 1 includes the steps of: opening the lid body 2 using the hinge 3 as a rotation axis; cutting the hinge 3 and separating the opened lid body 2 from the inner tray 1; placing the separated lid body 2 upside down; removing the inner tray 1 from the container body M; and placing the removed inner tray 1 on the lid body 2 placed upside down.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a method of using a packaging container equipped with an inner tray capable of accommodating contents and located between a container body and a lid, and a packaging container.

Conventionally, food packaging containers such as side dishes and bento boxes sold at retail stores such as supermarkets and convenience stores have traditionally had a separate container between the container body that houses the food and the lid that closes the opening of the container body. There were also three-piece types with an inner tray for storing food. In a typical medium plate, the portion for storing food enters the container main body, is attached to the opening edge of the container main body, and is removed from the container main body when eating.

For example, in Patent Document 1, the inner plate has a tongue-shaped tab that extends outward from the outer edge of the inner plate flange and is picked up by a fingertip, and the tab is located at the boundary with the outer edge of the inner plate flange. A container with an inner plate is disclosed, which has a linear bent part at or near the tab that can be easily bent and deformed in the vertical direction compared to other parts of the tab, which improves the workability of attaching the top lid to the container body. This is expected to have the effect of ensuring that the top cover is securely attached to the container body without causing any deterioration.

JP2021-79964A

However, the container with an inner plate of Patent Document 1 does not disclose how to handle the inner plate removed from the container body. In other words, the food inside the container body and the steam emitted by it may adhere to the back of the inner plate, and if you leave the inner plate on a desk or table, these items will get dirty and require cleaning. There is a risk. Therefore, in consideration of hygiene and efficiency, the inventors realized that there is room for improvement in the method of using the inner plate.

In addition, if the inner plate is separated from the container itself, the number of utensils will increase, which not only makes handling the food in the container cumbersome for customers who purchase it during meals, but also makes it difficult to handle the food in the container. It would be beneficial for consumers, retailers, and manufacturers to reduce the total number of containers, even if they include inner plates, since this would result in increased management effort and costs for retailers and manufacturers who manufacture and sell containers. There is room to become.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method of using a packaging container and a packaging container that contributes to improved handling of the inner plate and improves overall usability.

That is, the present invention provides an inner plate for accommodating another content, which is detachably attached to close the opening of a container main body in which the content is accommodated, and a container that is integrally formed with the inner plate via a hinge. A method of using a packaging container equipped with a lid body that closes the opening of an inner tray by using a hinge, the method includes the steps of opening the lid body using a hinge as a rotating shaft, and separating the opened lid body from the inner tray by cutting the hinge. A step of placing the separated lid body upside down, a step of removing the inner plate from the container body, and a step of placing the removed inner plate on the lid body placed upside down.

The present invention also provides a packaging container that achieves the above-mentioned usage method, in which the inner plate has an inner plate fitting part that fits into the container body, and the lid body is attached to the inner plate fitting part. It is desirable that the hinge has a lid fitting portion that fits into the lid body, and that the hinge has a perforation portion for cutting formed on the rotation axis.

Further, the present invention provides a container body for accommodating contents, an inner tray for accommodating another contents that is detachably attached to close the opening of the container body, and a container body for accommodating the contents to close the opening of the inner tray. It is characterized by comprising a lid body that is detachably attached.

In addition, in the present invention, "molding" means simply shaping or being shaped without limiting the manufacturing method, and "molding" means shaping or being shaped by fitting into a predetermined mold. Then, "molding" is an expression that includes "molding."

According to the present invention, it can be expected that the handling of the inner plate will be improved and the overall usability will be improved.

FIG. 1 is a perspective view of a packaging container according to an embodiment of the present invention with the lid closed and attached to a container body. It is a perspective view of the said packaging container in an open state. It is a top view of the said packaging container in an open state. It is a bottom view of the said packaging container in an open state. It is a front view of the said packaging container in an open state. It is a back view of the said packaging container in an open state. It is a left side view of the said packaging container in an open state. It is a right side view of the said packaging container in an open state. FIG. 3 is a perspective view of another packaging container according to an embodiment of the present invention with the lid closed and attached to the container body. It is a perspective view of the said packaging container in an open state. It is a top view of the said packaging container in an open state. It is a bottom view of the said packaging container in an open state. It is a front view of the said packaging container in an open state. It is a back view of the said packaging container in an open state. It is a left side view of the said packaging container in an open state. It is a right side view of the said packaging container in an open state. It is a perspective view which shows the use state of another packaging container in one Embodiment of this invention. FIG. 3 is a partially enlarged end view of the packaging container in a used state. It is a top view of the container main body in one embodiment of the present invention. It is a front view of the said container main body.

Hereinafter, with reference to FIGS. 1 to 8, a packaging container according to an embodiment of the present invention (hereinafter also referred to as "main packaging container") and a method of using the main packaging container will be described. In these figures, some portions where a plurality of identical portions are numbered are numbered only to one portion. For convenience of explanation, predetermined parts and their lead lines are shown with hidden lines (broken lines), and cross-sectional parts are shown with hatching in some parts. In the explanation, terms indicating directions such as upward, downward, outward, inward, vertical direction, horizontal direction, etc. are basically based on the state in which the packaging container is placed in the direction in which it is normally used, and other terms are used as a reference. If so, please explain as appropriate. The numbering to each part depicted in FIGS. 5 to 9 is omitted because it is substantially the same as the numbering to each part depicted in FIGS. 1 to 4.

<Basic configuration of this packaging container>
As shown in Figure 1, this packaging container is used to package foods such as side dishes and boxed lunches sold in retail stores such as supermarkets, and the opening Ma of the container body M for storing food is closed. The lid body 2 is formed integrally with the inner dish 1 via a hinge 3 and closes the opening 1a of the inner dish 1. There is. The container body M, the inner plate 1, and the lid body 2 have a circular shape in plan view, but may be rectangular or oval, and may have a size that can be placed on a display shelf in a retail store, and may have a vertical or horizontal shape.・Do not limit dimensions such as height. The food may be stored directly in the container body M or the inner tray 1, or may be stored via a bag or container.

<Overview of container body M>
Although not shown in detail, the container body M includes a bottom part on which the food is placed, a side part of the main body that extends upwardly from the peripheral edge of the bottom part of the main body, and a side part that extends continuously from the top edge of the side part of the main body. A main body fitting part M1 having a substantially L-shaped cross section for internal fitting into which the inner plate 1 formed at the top is fitted, and a main body flange part continuously extending outward from the upper end edge of the main body fitting part M1. We are prepared. A food storage section is formed by the bottom part and the side part of the main body. The upper edge of the side portion of the main body corresponds to the edge of the opening Ma of the container main body M.

Here, "inner fitting" means that the mating part of the one to be fitted (for example, the container body to the inner plate, the inner plate to the lid body) is on the outside, and the mating part of the one to be fitted (for example, the inner plate to the container body) , the fitting part of the lid for the inner plate) is located on the inside, and "side-side external fitting" or simply "outside fitting" refers to a structure in which the fitting part of the one to be fitted is located on the inside. This shows a structure in which the fitting portion of the other side is located on the outside.

<Overview of medium plate 1>
As shown in FIG. 2, there is a bottom part 11 of the medium plate on which food is placed, a side part 12 of the medium plate which stands up while continuously expanding upward from the peripheral edge of the bottom part 11 of the medium plate, and an upper edge of the side part 12 of the medium plate. an inner plate fitting part 13 having a generally L-shaped cross section formed continuously upward from the inner plate, an inner plate flange part 14 continuously extending outward from the upper end edge of the inner plate fitting part 13; An inner plate steam release part 15 formed to protrude inward from the inner plate bottom part 11 and the inner plate side part 12, and an inner plate knob part formed outward continuously from the peripheral edge of the inner plate flange part 14. 16. The bottom part 11 of the medium plate and the side part 12 of the medium plate form a food storage part.

<Details of the inner plate bottom 11>
The inner plate bottom 11 may have one or more unnumbered ribs that are concave from the outside and convex on the inside and/or unnumbered ribs that are concave from the inside and convex on the outside. It may be completely flat without having any.

<Details of the inner plate side part 12>
The upper edge of the inner tray side portion 12 corresponds to the edge of the opening 1a of the inner tray 1. The inner plate side portion 12 has one or more unnumbered vertical ribs that are concave from the outside and convex on the inside, and/or unnumbered vertical ribs that are concave from the inside and convex on the outside. It may have one or more, but it may have no ribs and may have a flat surface.

<Details of the inner plate fitting part 13>
The inner plate fitting part 13 is for internal fitting to fit into the main body fitting part M1 of the container main body M, and for internal fitting to fit a lid fitting part 23a of the lid body 2, which will be described later.

<Details of the inner tray steam vent section 15>
Although the inner tray steam release section 15 is located within the storage section and on the side of the inner tray side section 12, it may be located elsewhere (for example, in the center). The inner pan steam venting section 15 has a slit-shaped steam venting hole 15a on a flat, unnumbered steam venting top surface. The steam vent hole 15a may be linear, arcuate, or U-shaped, and is located at the same height as the inner plate flange portion 14 and the hinge 3, but may be located lower or higher than these. good.

<Overview of lid body 2>
The lid 2 includes a top surface portion 21 , a lid side portion 22 that extends downward from the peripheral edge of the top surface portion 21 and extends outward continuously from the lower edge of the lid side portion 22 . It includes a lid flange portion 23 and a lid knob portion 24 that is continuously formed outward from the peripheral edge of the lid flange portion 23. The top surface portion 21 and the lid side portions 22 form a cover portion that covers the inner plate.

<Details of the top section 21>
The top surface portion 21 may have one or more unnumbered ribs that are concave from the outside and convex on the inside and/or ribs (not shown) that are concave from the inside and convex on the outside, but all of them are flat. But that's fine.

<Details of the lid side part 22>
The lid side portion 22 has one or more unnumbered vertical ribs that are concave from the outside and convex on the inside, and/or one unnumbered vertical rib that is concave from the inside and convex on the outside. It may have one or more, but it may have no ribs and may have a flat surface.

<Details of the lid flange portion 23>
The lid flange portion 23 includes a lid fitting portion 23a for internal fitting that has a substantially L-shaped cross section and is formed continuously from the lower edge of the lid side portion 22 so as to fit into the inner plate fitting portion 13, and a lid fitting portion 23a for internal fitting that has a substantially L-shaped cross section. The lid body flange flat part 23b is continuous from the upper end edge of the body fitting part 23a. When the lid is closed, the lid flange flat part 23b faces the inner plate flange part 14, and the lid fitting part 23a is hidden by the inner plate fitting part 13.

<Overview of Hinge 3>
The hinge 3 includes an inner plate side hinge piece 31 located on the inner plate 1 side and continuous with the inner plate flange part 13, and a middle plate side hinge piece part 31 located on the cover body 2 side and continuous with the cover body flange flat part 23b. It has a lid-side hinge piece 32 and a cutting perforation 33 formed at the boundary between the inner tray-side hinge piece 31 and the lid-side hinge piece 32.

<Details of the inner plate side hinge piece 31>
The inner plate-side hinge piece 31 has an embossed perforation display section 31a that indicates the position and/or cutting of the perforation section 33. The perforation display section 31a is covered from above by the lid-side hinge piece 32 when the lid 2 is closed, but is visible because the lid-side hinge piece 32 is transparent. The inner plate-side hinge piece portion 31 may be cut at a corner so as not to overlap a hinge knob portion 32a, which will be described later, when the lid body 2 is in the closed state.

<Details of the lid side hinge piece 32>
The lid-side hinge piece 32 has a hinge knob 32a that is pinched when the perforation 33 is cut. The lid side hinge piece 32 may be larger than the inner plate side hinge piece 31 by the area of the hinge knob 32a. The hinge knob 32 is smaller than the lid knob 24 so that it is less noticeable.

<Perforation part 33>
The perforations 33 are two or more holes formed by laser processing, and the holes may be formed in a straight line or in an arc shape, and adjacent holes may be spaced evenly or irregularly. But that's fine.

<Specifications of the material, forming method, dimensions, etc. of the container body M>
The container body M is molded using a synthetic resin sheet as a base material. Synthetic resin sheets include, for example, polystyrene paper (PSP) made of olefin resins such as polyethylene and polypropylene, polystyrene paper (PSP) made of polystyrene resin, and resistant sheets made of GP polystyrene mixed with an elastic material such as butadiene copolymer to improve impact resistance. It is made of polyester resin such as high impact polystyrene (HIPS) and polyethylene terephthalate, and may be made of paper powder as the main raw material and the above-mentioned olefin resin as a binder, and may be composed of a single layer or multiple layers, and may be colored or colorless. It may be transparent or opaque, and may be made of a heat-resistant material. Here, the heat-resistant material includes a non-foamed composite material containing 40 to 90% by mass of an olefin resin such as polypropylene and 10 to 60% of an inorganic filler such as talc. The synthetic resin sheet is formed into a desired container body shape by a thermoforming method such as vacuum forming, hot plate pressure forming, vacuum pressure forming, double-sided vacuum forming, or the like. The front and/or back sides of the synthetic resin sheet may be laminated with a synthetic resin film. The synthetic resin film may be composed of a single layer or multiple layers having heat resistance, oil resistance, suitability for lamination with a printed layer, gas barrier properties, etc., and may include a printed layer when laminated on the surface of a synthetic resin sheet. good.

The synthetic resin sheet may be made of foamed resin or non-foamed resin, but in the present invention, it is easier to obtain the desired effect if it is made of foamed resin. The thickness of the synthetic resin sheet is not particularly limited, but if it is made of non-foamed resin, it may be 0.18 to 1 mm, preferably 0.3 to 0.8 mm, and more preferably 0.35 to 0.6 mm. be. In the case of a low foaming resin with an expansion ratio of 1.5 to 3 times, the thickness may be 0.5 to 3 mm, preferably 1 to 2 mm. Further, in the case of a highly foamed resin with an expansion ratio of 5 to 15 times, the diameter may be 1.5 to 5 mm, preferably 1.8 to 4 mm, and more preferably 2.0 to 3.5 mm. The foaming ratio is the ratio of the specific volume after foaming/the ratio before foaming, which is calculated by measuring the specific volume (unit: cc/g) of the foamed composition before foaming and the foamed sheet after foaming. It is calculated based on volume. The container body 1 may have a width of 150 to 350 mm and a depth of 150 to 350 mm, for example.

<Specifications of the material, forming method, dimensions, etc. of the inner plate 1 and lid body 2>
The inner plate 1 and the lid body 2 are molded using a synthetic resin sheet as a base material. Synthetic resin sheets include, for example, polystyrene paper (PSP) made of olefin resins such as polyethylene and polypropylene, polystyrene paper (PSP) made of polystyrene resin, and resistant sheets made of GP polystyrene mixed with an elastic material such as butadiene copolymer to improve impact resistance. It is made of polyester resin such as high impact polystyrene (HIPS) and polyethylene terephthalate, and may be made of paper powder as the main raw material and the above-mentioned olefin resin as a binder, and may be composed of a single layer or multiple layers, and may be colored or colorless. It may be transparent or opaque, and may be made of a heat-resistant material. Here, the heat-resistant material includes a non-foamed composite material containing 40 to 90% by mass of an olefin resin such as polypropylene and 10 to 60% of an inorganic filler such as talc. The synthetic resin sheet is formed into a desired container body shape by a thermoforming method such as vacuum forming, hot plate pressure forming, vacuum pressure forming, double-sided vacuum forming, or the like. The front and/or back sides of the synthetic resin sheet may be laminated with a synthetic resin film. The synthetic resin film may be composed of a single layer or multiple layers having heat resistance, oil resistance, suitability for lamination with a printed layer, gas barrier properties, etc., and may include a printed layer when laminated on the surface of a synthetic resin sheet. good.

The synthetic resin sheet may be made of foamed resin or non-foamed resin, but in the present invention, it is easier to obtain the desired effect if it is made of non-foamed resin. The thickness of the synthetic resin sheet is not particularly limited, but if it is made of non-foamed resin, it may be 0.18 to 1 mm, preferably 0.3 to 0.8 mm, and more preferably 0.35 to 0.6 mm. be. In the case of a low foaming resin with an expansion ratio of 1.5 to 3 times, the thickness may be 0.5 to 3 mm, preferably 1 to 2 mm. Further, in the case of a highly foamed resin with an expansion ratio of 5 to 15 times, the diameter may be 1.5 to 5 mm, preferably 1.8 to 4 mm, and more preferably 2.0 to 3.5 mm. The foaming ratio is the ratio of the specific volume after foaming/the ratio before foaming, which is calculated by measuring the specific volume (unit: cc/g) of the foamed composition before foaming and the foamed sheet after foaming. It is calculated based on volume. The size of the medium plate 2 may be 150 to 350 mm in width and 50 to 150 mm in depth. The size of the lid body 2 may be 150 to 350 mm in width and 50 to 150 mm in height.

<Interrelationship among the container body M, inner plate 1, and lid body 2 before use of this packaging container>
As shown in FIG. 1, when the inner plate 1 is attached (fitted) to the container main body M, the main body fitting part M1 is located outside and the inner plate fitting part 13 is located inside, and the inner plate 1 is fitted into the container body M. The lower side of the inner plate flange part 14 of the plate 1 is housed in the container body M and is hidden. When the lid body 2 is attached (fitted) to the inner plate 1 (that is, the lid is closed), the inner plate fitting part 13 is positioned on the outside and the lid body fitting part 23a is positioned on the inside. The dish side hinge piece 31 is located on the lower side and the lid body side hinge piece 32 is located on the upper side and overlaps, and the inner plate knob part 16 is located on the lower side and the lid body knob part 24 is located on the upper side, so that it is not completely horizontal but They shift and overlap. The lid body 2 can be opened and closed with respect to the inner plate 1 using the perforation part of the hinge 3 as a rotation axis. The perforation part is not cut by the external force applied when opening and closing the lid body 2, but is cut by the external force applied when the hinge knob part 32a is pinched to separate the inner plate side hinge piece part 31 and the lid body side hinge piece part 32.

<How to use this packaging container>
As shown in FIGS. 1 and 2, in a state where the inner plate 2 is attached (fitted) to the container main body M in which food is stored, and the lid body 2 is attached (fitted) to the inner plate 1, first, The fitted state between the inner plate fitting part 13 and the lid fitting part 23a is released, and the lid 2 is opened using the hinge 3 as a rotation axis. Next, the perforation 33 of the hinge 3 is cut to separate the lid 2 from the inner plate 1. Next, the separated lid body 2 is placed upside down so that the top surface portion 21 faces a desk or the like. Next, the fitted state between the main body fitting part M1 and the inner plate fitting part 1 is released, and the inner plate 1 is taken out from the container main body M. Finally, the removed inner plate 1 is placed on the lid body 2 placed upside down.

According to this configuration, the fitted state between the inner plate fitting part 13 and the lid body fitting part 23a and the fitted state between the main body fitting part M1 and the inner plate fitting part 13 can be easily released, and the inner plate 1 and the fitted state can be easily released. Even if the lid 2 is integral, the lid 2 can be easily separated from the inner tray 1 by cutting the perforation 33 of the hinge 3, and the lid 2 can be removed from the container body M immediately after separation. If the inner plate 1 taken out from the container main body M is placed directly on the lid body 2 which is the receiving tray, there will be no need to stain the desk etc. with food or water droplets adhering to the back side of the inner plate 1. Consumers can eat hygienically and efficiently, and retailers and manufacturers can expect the effect of reducing management and cost burdens because the inner plate 1 and lid body 2 are integrated.

When the food is stored directly in the inner plate 1, the food in the inner plate 1 removed from the container body M is put into the food in the container body M, and then the inner plate 1 with no food is placed upside down. It may be placed on the lid body 2.

Next, with reference to FIGS. 9 to 16 and 17 to 18, different parts of another packaging container according to an embodiment of the present invention from the above-mentioned main packaging container will be explained, and equivalent parts will be explained. The explanation of is omitted. For ease of reference, parts or parts equivalent to those shown in FIGS. 1 to 4 are numbered by uniformly adding 100 in FIGS. 1 to 4 in FIGS. 1 to 4, the numbers are uniformly increased by 100. The numbering to each part depicted in FIGS. 11 to 16 is omitted because it is substantially the same as the numbering to each part depicted in FIGS. 9 and 10.

As shown in FIGS. 9 and 10, another packaging container includes an inner plate 101 that fits externally into the container body 100M, and an inner plate 101 that is integrally formed with the inner plate 101 that is externally fitted via a hinge 103. It is provided with a lid body 102 that fits. The hinge 103 does not have a perforation for cutting, but may have one.

The inner plate 101 has an inner plate flange portion 114 that is continuously formed outward from the upper edge of the unnumbered inner plate side wall, and the inner plate flange portion 114 is continuous from the upper edge of the inner plate side wall. It has an inner plate flange fitting part 114a that extends outward and then falls downward.

The lid body 102 has a lid side wall part 122 and a lid flange part 123, and the lid side wall part 122 has a lid fitting part 122a located below and continuous with the lid flange part 123. have

When the inner plate 101 is attached (fitted) to the container main body 100M, the main body fitting portion (not shown) is located on the inside and the inner plate flange fitting portion 114a is located on the outside. When the lid body 102 is attached (fitted) to the inner plate 101 (that is, the lid is closed), the inner plate flange fitting part 114a is located inside and the lid body fitting part 122a is located outside.

As shown in FIG. 17, another packaging container includes a container main body 200M for storing food, and an inner plate 201 for storing another food, which is detachably attached so as to close the opening of the container main body 200M. , and a lid body 202 that is detachably attached to close the opening of the inner plate 201.

As shown in FIG. 18, when the inner plate 201 is attached (fitted) to the container main body 200M, the unnumbered main body fitting part is located outside and the unnumbered inner plate fitting part is located inside. match. When the lid body 202 is attached (that is, the lid is closed), the unnumbered lid fitting portion is located on the outside, and the unnumbered body flange tip portion is located on the inside.

Note that the packaging container and its usage method shown in this embodiment are not limited to the above-mentioned contents, and include the positions, shapes, and dimensions of all parts and relationships between parts as long as equivalent effects can be obtained.

1 Inner dish 1a Opening part 11 Inner dish bottom part 12 Inner dish side part 13 Inner dish fitting part 14 Inner dish flange part 15 Inner dish steam release part 15a Steam vent hole 16 Inner dish knob part 2 Lid body 21 Top surface part 22 Lid body side Part 23 Lid flange portion 23a Lid fitting portion 23b Lid flange flat portion 24 Lid knob 3 Hinge 31 Inner plate side hinge piece 31a Perforation display portion 32 Lid side hinge piece 32a Hinge knob 33 Perforation Department

Claims (3)

An inner tray for accommodating another content that is removably attached to close the opening of the container main body in which the contents are accommodated, and an inner tray that is molded integrally with the inner tray via a hinge to close the opening of the inner tray. 1. A method of using a packaging container comprising a closing lid,
The process of opening the lid using the hinge as the rotation axis,
a step of cutting the hinge and separating the opened lid body from the inner tray;
a step of placing the separated lid body upside down;
a step of removing the inner plate from the container body;
A method for using a packaging container, comprising the step of placing a removed inner plate on a lid placed upside down. A packaging container realizing the method of use according to claim 1, comprising:
The inner plate has an inner plate fitting part that fits into the container body,
The lid has a lid fitting part that fits into the inner plate fitting part,
A packaging container characterized in that the hinge has a perforation for cutting formed on a rotating shaft. a container body for accommodating the contents;
an inner tray for accommodating another content that is detachably attached to close the opening of the container body;
A packaging container characterized by comprising a lid detachably attached to close an opening of an inner tray.

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