JP7144029B2 - packaging container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a packaging container that is covered with a lid and that can accommodate foodstuffs such as sushi.

In retail stores such as supermarkets, it is often seen that foodstuffs such as sushi are stored in containers molded from thin resin sheets and sold. In many cases, the lid of such a container has a structure that can be attached to and detached from the container body. It is preferred.

Therefore, for example, in Patent Document 1 below, a lid body for a packaging container comprising a container body for containing contents and a lid body that allows the contents to be visually recognized from the outside and is attached to the container body. A horizontal projecting portion that engages with the lid body receiving portion is provided, and the four corners of the horizontal projecting portion are formed to be positioned higher than the vicinity of the four corners. Disclosed is a lid that is characterized by having a projecting pressing projection, and while this lid is difficult to remove when carrying or moving, it is easy to take out the contents by pressing the pressing projection. can be removed.

Further, Patent Document 2 below describes a container body formed by sheet molding and having a corner portion formed on a body flange, and a lid formed by sheet molding and externally fitted to the body flange by a lid flange and formed on the lid flange. A packaging container comprising a lid that is locked to the container body side at a locking portion, wherein the lid body is externally fitted to the container body in a portion that covers the corner portion of the lid flange on the container body side. , the outer end is in contact with the body flange, the inner end forms a pressing surface that rises from the body flange, the pressing surface forms a side surface that is continuous with the lid flange, and the portion of this side surface that is continuous with the lid flange Disclosed is a packaging container characterized by having a length longer than the full width of a body flange. At the time of opening the lid, the pressing surface can be pressed to easily and reliably unseal the lid.

JP 2012-176774 A JP 2013-189211 A

The cover of Patent Document 1 is provided with a pressing protrusion at the corner (corresponding to the corner) of the horizontal projecting part (corresponding to the flange), and is pushed in so that the cover can be easily removed. It is what I did. However, if the protrusion width of the pressing protrusion is increased, the appearance of the container deteriorates.
In addition, the corners of the flange portion of the cover have a complicated concave-convex shape, which may cause manufacturing problems such as difficulty in making a mold for thermoforming and difficulty in removing the cover during thermoforming.
Furthermore, when the height difference of the uneven shape is large, the thickness of the sheet for thermoforming must be increased, and there is also the problem that it is not possible to reduce the cost by reducing the thickness.

The packaging container disclosed in Patent Document 2 also has a cover formed with a pressing surface that is lifted from the flange of the main body, and there is a possibility that the same problem as described above may occur.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a packaging container in which the lid is externally fitted to the container body, and which has a good appearance and is easy to open.

A packaging container according to one embodiment of the present invention is a packaging container comprising a container body and a lid body fitted onto the container body, wherein the container body has an outer edge and a body projecting outward. A flange portion, an inclined surface portion in which an inner portion of the main body flange portion is inclined downward, and a recess recessed in a part of the inclined surface portion to a predetermined depth, the lid covering the main body flange portion, A cover flange portion having a pressing surface portion located above the push-in recess, a skirt portion extending downward from the outer edge of the cover flange portion, and a skirt portion protruding into the inside of the container near the lower end of the skirt portion to the body flange portion. and a locking portion for locking.

As described above, the container body is provided with the recess recessed to a predetermined depth, and the lid is provided with the pressing surface portion. Since the skirt portion can be rolled up, the locked state of the locking portion is released, making it easier to remove the lid from the container body.

In the packaging container of the above configuration, the container body preferably has a polygonal shape with at least one corner in plan view, and is preferably provided with a depression in the vicinity of the corner. It is preferable to have an extension projecting at . In this way, by providing the corner portion, that is, the corner portion of the container with the push-in concave portion, the container can be easily picked up with the fingertips, so that the pressing surface portion can be easily pressed. Further, by providing the extending portion, fingertips such as the index finger can be hooked on the skirt portion, making it easier to open the package.

In the packaging container of the above configuration, it is preferable that the inner portion of the lid flange portion is inclined along the inclined surface portion of the body flange portion, and the push-in recess is expanded toward the inside of the container in a triangular or platform shape in plan view. A concave shape is preferred. As a result, the fingertips of the thumb can be easily accommodated during the opening operation, and the opening operation is facilitated.

It is preferable that the packaging container of the above configuration has a concave or convex potch on the pressing surface. As a result, the strength of the pressing surface portion is increased, and it is possible to make the user recognize that this portion is the portion to be pressed during the opening operation.

1 is a perspective view showing an embodiment of a packaging container of the present invention, in which a container body and a lid are separated; FIG. FIG. 2 is a plan view showing a container body in the packaging container shown in FIG. 1; In the packaging container shown in FIG. 1, a partially enlarged end view of the vicinity of the corner portion is shown, (A) is a state in which the container body and the lid are separated, and (B) is a state in which the container body and the lid are fitted. state. In the packaging container shown in FIG. 1, a partially enlarged end view of the vicinity of the middle part of the edge is shown, (A) is a state in which the container body and the lid are separated, and (B) is a state in which the container body and the lid are fitted. It is in a mated state. FIG. 2 is a plan view showing a lid of the packaging container shown in FIG. 1; 2 is a partially enlarged plan view of the vicinity of a corner portion of the packaging container shown in FIG. 1 in a state where the container body and the lid are fitted together; FIG. 1. It is the partial enlarged plan view of corner part vicinity which showed the example of a changed completely type of the cover body in the packaging container shown in FIG. 1. It is the partial enlarged plan view near the corner part which showed the other modification of the cover body in the packaging container shown in FIG. FIG. 2 is a view for explaining the operation of opening the lid of the packaging container shown in FIG. 1;

Hereinafter, one embodiment of the packaging container of the present invention will be described based on the drawings.

A packaging container 1 according to an embodiment of the present invention comprises a container body 2 and a lid body 3 externally fitted to the container body 2, as shown in FIG.

Although the packaging container 1 is not particularly limited, it can accommodate foodstuffs such as vegetables, side dishes, cooked rice, and noodles. is preferably accommodated.

The packaging container 1 can be produced, for example, by thermoforming a synthetic resin sheet having a sheet thickness of 0.10 mm to 4.0 mm, preferably 0.15 mm to 2.5 mm.

The synthetic resin sheet is not particularly limited, but may be either a foamed resin sheet or a non-foamed resin sheet. Examples include polyolefin resin sheets such as polyethylene resin sheets and polypropylene resin sheets, polystyrene resin sheets, Thermoplastic resin sheets such as polyethylene terephthalate-based resin sheets and polyester-based resin sheets such as modified polyethylene terephthalate-based resin sheets imparted with heat resistance can be used. Among them, those that can withstand heating in a microwave oven, such as heat-resistant polystyrene-based resin sheets, polypropylene-based resin sheets, and modified polyethylene terephthalate-based resin sheets imparted with heat resistance are preferred.
A laminated sheet can also be used as the synthetic resin sheet, and examples of the laminated sheet include a laminated sheet obtained by thermally laminating a film to a synthetic resin sheet, a laminated sheet obtained by a coextrusion method, and a laminated sheet obtained by an extrusion lamination method. can be done.

Thermoforming includes, for example, vacuum forming, pressure forming, vacuum pressure forming, and hot plate forming.

The material of the container body 2 and the lid 3 may be the same or different. For example, the container body 2 can be made of foamed resin and the lid 3 can be made of non-foamed resin. In particular, the lid 3 is preferably made of non-foaming resin.
Further, the container main body 2 and the lid 3 may be colored such as black or white, or may be transparent or translucent. The colors of the container body 2 and the lid 3 may be the same or different. For example, the container body 2 can be white and the lid 3 can be transparent. In this embodiment, the container body 2 is black and the lid 3 is transparent.

As shown in FIG. 1 or FIG. 2, the container body 2 is formed in the shape of a rectangular flat dish in a plan view, and the four corners thereof are substantially right-angled corner portions 2a. In this embodiment, the shape is rectangular in plan view, but is not limited to this, and may be circular or oval in plan view. , pentagons, hexagons, octagons, or other polygonal shapes in plan view.
When the container body 2 has a circular or elliptical shape in plan view, for example, a tongue piece projecting outward in a triangular shape in plan view is provided on a part of the outer edge, and a push-in recess 24 described later is provided therein. It is preferable to provide

As shown in FIGS. 1 to 4, the container body 2 includes a bottom surface portion 21, a side wall surface portion 22 rising from the edge of the bottom surface portion 21, and a body flange portion 23 projecting outward from the upper edge of the side wall surface portion 22. , provided.

The bottom surface portion 21 is formed as a substantially horizontal rectangular surface in plan view, and the side wall surface portion 22 is formed so as to rise substantially vertically at a slight height from the peripheral edge of the bottom surface portion 21 as shown in FIG. 3 or FIG. A portion surrounded by the bottom surface portion 21 and the side wall surface portion 22 is used as a storage portion 21a capable of storing storage items such as foodstuffs.

As shown in FIG. 1 or FIG. 2, on the surface of the bottom portion 21, narrow grooves 21b are formed in the vicinity of the center of the container along the longitudinal direction and narrow grooves 21b are formed obliquely in parallel at approximately equal intervals. , sushi and the like can be arranged along the narrow groove 21b.
A circumferential groove portion 21c is formed around the bottom surface portion 21 so as to store water seeped out from foodstuffs or the like. In addition, the vicinity of each corner of the circumferential groove portion 21c is further recessed into an L shape in a plan view so as to serve as a leg portion of the container body 2. As shown in FIG.

As shown in FIG. 4, the body flange portion 23 is formed so as to protrude outward from the upper edge portion of the side wall surface portion 22, and substantially the outer half of the container is formed into a substantially horizontal horizontal surface portion 23a, and the substantially inner half of the container is formed. is formed as an inclined surface portion 23b inclined downward toward the inside of the container.
A portion of the inclined surface portion 23b (near each corner portion 2a in the present embodiment) is provided with a depression recess 24 recessed to a predetermined depth so as to be lower than the other portions. In this embodiment, the push-in recess 24 is formed with a steeper angle of inclination than the inclined surface portion 23b.

The push-in recess 24 is formed in a trough shape, and is formed as a triangular or trapezoidal recess in a plan view that widens toward the inside of the container. Such a shape that expands toward the inside of the container makes it easy for a fingertip to fit when pressing a pressing surface portion 34, which will be described later, with a thumb or the like.
In the present embodiment, the push-in recesses 24 are provided at four locations on each corner portion 2a, but it is sufficient if they are provided at least one location. It is preferable because it facilitates the opening operation.
The push-in recesses 24 also serve as reinforcing ribs, and are effective in increasing the rigidity of the flat plate-shaped container body 2 as in the present embodiment. Moreover, when the pressing surface portion 34 of the lid body 3 is pressed, it can be made rigid so as not to be crushed.

A downwardly extending skirt portion 25 is formed on the outer edge of the body flange portion 23, as shown in FIG.
The skirt portion 25 has a J- or L-shaped cross section. More specifically, the skirt portion 25 has a slanted surface that inclines while expanding outward from the outer edge portion of the main body flange portion 23, and the lower end of the skirt portion horizontally protrudes slightly outward. I let you.
The skirt portion 25 may have a curved surface or the like, or the skirt portion 25 may not be provided.

As shown in FIGS. 1 and 3 to 5, the lid 3 is formed so as to cover the container body 2, and has a rectangular shape in a plan view matching the shape of the container body 2, with four corners of approximately right angles. It is shown as part 3a.
Although the cover 3 has a rectangular shape in plan view in this embodiment, it is not limited to this. It is preferable to match the shape of the container body 2, and it is preferable to have a polygonal shape in plan view having at least one corner portion (corner portion) 3a.
When the cover body 3 has a circular or elliptical shape when viewed from the top, a tongue portion projecting outward in a triangular shape when viewed from the top is provided on a part of the outer edge, for example, and a pressing surface portion 34, which will be described later, is provided thereon. It is preferable to provide

As shown in FIG. 5, the lid body 3 includes a top surface portion 31 having a rectangular shape in plan view, side wall portions 32 inclined downward from the outer edge of the top surface portion 31, and extending outward from the lower edge portion of the side wall portion 32. and a lid body flange portion 33 that extends.

The top surface portion 31 is a substantially horizontal surface that is rectangular in plan view. As shown in FIG. 3 or FIG. 4 , the outer edge of the top surface 31 is provided with an inclined side wall surface 32 that widens outward and downward. It enables it to cover the accommodating part 21a.

As shown in FIG. 3 or FIG. 4, the lid body flange portion 33 is formed so as to protrude outward by a predetermined width from the lower end portion of the side wall surface portion 32, and the lid body 3 is fitted to the container body 2. The cover body flange portion 33 is formed so as to be placed on the surface of the main body flange portion 23 in this state.
The vicinity of the upper portion of the push-in recess 24 of the cover flange portion 33, that is, the vicinity of the corner portion 3a is used as a pressing surface portion 34, and the outer edge portion of the cover flange portion 33 is provided with a skirt portion 35 directed downward.

The cover flange portion 33 has an outer substantially horizontal half portion 33a that rests on the horizontal surface portion 23a of the main body flange portion 23, and an inner half portion inclined downward toward the inside. It is formed so as to rest on the surface of the inclined surface portion 23b of the body flange portion 23.
Although the lid flange portion 33 may be formed flat on the entire surface, it is preferable to provide the inclined surface portion 33b because the tip of the thumb can be easily accommodated when the lid is opened.

The pressing surface portion 34 is formed such that the vicinity of each corner portion 3a of the inclined surface portion 33b is inclined more gently than other portions of the inclined surface portion 33b, and has a triangular or trapezoidal inclination in plan view that widens toward the inside of the container. formed as a surface.
As shown in FIG. 6, it is preferable that the width of the pressing surface portion 34 that expands toward the inner side of the container is wider than that of the pressing recess 24 so that both sides of the pressing surface portion 34 overlap the inclined surface portion 23b (see FIG. 6). The hatched part is the overlapping part). By doing so, when the pressing surface portion 34 is pressed, the overlapping portion serves as a fulcrum to release the locked state of the locking portion 35a, which will be described later, thereby facilitating the lid opening operation.

As shown in FIG. 1, a hemispherically concave potch portion 34a is provided on the surface of the pressing surface portion 34. As shown in FIG. By providing the potch portion 34a, the strength of the pressing surface portion 34 is increased, making it easier to press. In addition, it becomes easy to recognize that this portion is the portion to be opened by pressing the potch portion 34a as a mark.
Although the potch portion 34a is formed in a hemispherical concave shape in this embodiment, it may be formed in any shape as long as it is formed in a concave or convex shape. Well, it can also be an arrow-shaped protrusion or recess, as shown in FIG.

As shown in FIG. 3 or 4, the skirt portion 35 hangs down from the outer edge portion of the lid body flange portion 33, and is formed with the lower end positioned below the lower end portion of the skirt portion 25 of the body flange portion 23. There is. In the vicinity of the lower end of the skirt portion 35, as shown in FIG. 4, locking portions 35a are formed at suitable intervals so as to protrude toward the inside of the container in the form of horizontal long stripes so that they can be locked to the main body flange portion 23. It is
In this embodiment, the locking portions 35a are provided near both sides of the corner portion 3a and near the middle of each side, but the present invention is not limited to this. When the engaging portion 35a is provided in the vicinity of the corner portion 3a, it is preferable not to provide it in the corner portion but to provide it on both sides. By doing so, the locked state of the locking portion 35a is released, and the lid body 3 can be easily opened.

As shown in FIG. 8, it is preferable that the skirt portion 35 is provided with an extension portion 35b that protrudes from the lower end to the outside of the container by a small width near the outside of the pressing surface portion 34 (near the corner portion 3a in this embodiment). By doing so, the tip of a finger such as the index finger can be easily hooked, and the locking of the locking portion 35a can be easily released.

In such a packaging container 1, for example, foodstuffs such as sushi are stored in the storage portion 21a, the lid 3 is put on the container body 2, and the lid 3 is pressed toward the container body 2 so that the locking portion 35a is opened. is engaged with the lower end of the skirt portion 25 of the body flange portion 23, and the lid body 3 is externally fitted to the container body 2, whereby the lid can be closed.

To open the packaging container 1, for example, as shown in FIG. 9, while pressing the pressing surface portion 34 with the thumb, the forefinger is put on the extending portion 35b to turn it up, so that the locking portion 35a is opened from the main body flange. The lid 3 is released from the skirt portion 35 of the portion 33 , and the lid 3 can be removed from the container body 2 . At this time, since the pushing surface portion 34 can be pushed deeply into the push-in recess 24 with the thumb, the skirt portion 35 is rolled up to facilitate the unlocking of the locking portion 35a, thereby facilitating the opening of the lid 3. As shown in FIG.

Further, as shown in FIG. 8, if the skirt portion 35 is provided with an extending portion 35b, it becomes easier to place the forefinger thereon, and the skirt portion 35 can be rolled up to facilitate the unlocking of the engaging portion 35a.

As shown in FIG. 6, if the pressing surface portion 34 is made wider than the pressing recess 24 so that both sides of the pressing surface portion 34 overlap the inclined surface portion 23b, the overlapping portion serves as a fulcrum when pressing the pressing surface portion 34. , the skirt portion 35 can be rolled up with a light force, the locking of the locking portion 35a can be easily released, and the lid can be opened more easily.

The configuration aspects of the above-described embodiments are not intended to limit the present invention, and modifications are possible as long as the technical purpose is shared, and the present invention includes such modifications.

1 packaging container 2 container body 2a corner portion 21 bottom portion 21a housing portion 21b narrow groove portion 21c peripheral groove portion 22 side wall portion 23 main body flange portion 23a horizontal surface portion 23b inclined surface view 24 pushing recess 25 skirt portion 3 lid body 3a corner portion 31 top Surface portion 32 Side wall surface portion 33 Cover flange portion 33a Horizontal surface portion 33b Inclined surface portion 34 Pressing surface portion 34a Potch portion 35 Skirt portion 35a Locking portion 35b Extension portion

Claims (5)

A packaging container comprising: a container body having a polygonal shape in plan view and having at least one corner; and a lid body fitted onto the container body,
The container body has, on the outer edge, a body flange portion projecting outward, an inclined surface portion in which the inner portion of the body flange portion is inclined downward, and a portion of the inclined surface portion near the corner portion having a predetermined depth. and a depressed recess recessed by
The lid includes a lid flange that covers the main body flange and has a pressing surface that is positioned above the push-in recess, a skirt that extends downward from an outer edge of the lid flange, and the skirt. a locking portion protruding toward the inside of the container near the lower end of the portion and locking to the main body flange portion,
packaging container. 2. The packaging container according to claim 1 , wherein the lower end of the skirt portion is provided with an extension portion projecting outward. The packaging container according to claim 1 or 2 , wherein the lid flange portion has an inner portion inclined along the inclined surface portion of the main body flange portion. The packaging container according to any one of claims 1 to 3 , wherein the push-in recess is a triangular or trapezoidal recess that widens toward the inside of the container when viewed from above. The packaging container according to any one of claims 1 to 4 , wherein the pressing surface portion is provided with a concave or convex potch portion.

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