JP5938505B1 - Packaging container - Google Patents

Abstract

The present invention provides a packaging container that can be easily opened in a container having a fitting portion for fitting a container body and a lid. The packaging container 1 has a structure of a fitting portion for fitting the container main body 2 and the lid 3 provided with at least one of an inner fitting and an outer fitting, and the container main body 2 or the lid 3 The knob 27 is formed on the outer surface of one of the fitting parts and on the surface of the knob 27, and is inclined so as to protrude outward while projecting to the other side of the container body 2 or the lid 3. 28, outside of the other fitting portion of the container body 2 or the lid 3, a pressing piece portion 36 that faces the knob piece portion 27 in the closed state, and a knob piece portion 27 on the container outer side of the pressing piece portion 36. An outer bulging portion 37 bulged to the side, and an inner bulging portion in which the inner side of the container of the pressing piece portion 36 is bulged to the knob piece portion 27 side, and the tip portion abuts against the inclined surface 28 in the closed state. 38. [Selection] Figure 1

Description

  The present invention relates to a packaging container that fits and closes a container body and a lid and mainly packages foods such as fresh products and side dishes.

In retail stores such as supermarkets, convenience stores, and department stores, lunch boxes, fresh foods, and other side dishes are displayed in a packaging container that consists of a container body and a lid.
Some of such packaging containers have a fitting structure between a container body and a lid so as not to be easily opened. The fitting structure includes an outer fitting that fits the lid outside the peripheral edge of the container body and an inner fitting that fits the lid inside the peripheral edge of the container main body. Since it is tightly fitted to seal and difficult to open, the inner fitting is particularly difficult to open because the lid fits into the container body.

  Therefore, an inclined surface portion that is inclined upwardly toward the outside is formed on the outer portion of the upper surface portion of the main body flange portion at at least one corner portion of the container main body, and the lid flange portion has the above-described state in the closed state. A packaging container has been developed in which a knob is formed so as to incline upward toward the outside by abutting on an inclined surface portion so as to overlap (see Patent Document 1 below).

  Each of the first and second containers includes a first container and a second container, which are formed of a sheet-like molded body mainly composed of a synthetic resin, and are bonded together to form a sealed container. Correspondence between the first fitting portion and the second fitting portion that are attached to each other, the first outer peripheral flange portion and the second outer peripheral flange portion that are integrally connected to the fitting portion, and a part of the flange portion A first fin portion and a second fin portion having a triangular shape in plan view are respectively formed at the positions where the first fin portion and the second fin portion are formed. Is provided with a bulging portion that comes into contact with the first knob portion and is formed with a second knob portion that springs up in the direction opposite to the fitting direction. When the container is opened, the first knob portion and the second knob portion are formed. The knob portion is pinched together and the second portion is formed by the bulging portion. The first fin portion having a triangular shape in plan view, with the container-side end of the bulge portion of the bum portion being lifted in a direction opposite to the attaching direction, separating the fitting portions of the first container and the second container, An easy-open container characterized by releasing the fitting of both fitting parts through the second fin part has been developed (see Patent Document 2 below).

Japanese Patent No. 5711806 JP 2014-201353 A

However, the container described in Patent Document 1 is for opening the lid by lifting the knob, and there is a risk that the contents will be scattered if the container body is not fixed while being pulled well.
In addition, the container described in Patent Document 2 has a flat tab-like first knob portion with an index finger or the like, and the second knob portion is pushed down (or pushed up) with a thumb or the like to open the first knob portion. If it is not firmly supported, the first knob portion may be bent and the lid cannot be opened.

  Accordingly, an object of the present invention is to provide a packaging container that can be easily opened in a container having a fitting portion that fits the container body and the lid.

One aspect of the packaging container of the present invention is a packaging container in which the structure of the fitting portion for fitting the container body and the lid is provided with at least one of inner fitting and outer fitting. Or a knob piece provided on the outside of the fitting part on one side of the lid, and an inclination provided on the surface of the knob piece part so as to protrude toward the other side of the container body or the lid while facing outward from the container The surface, the other side of the container body or lid, a pressing piece portion that faces the knob piece portion in the closed state, and a shape that bulges toward the knob piece portion side, provided on the container outer side of the pressing piece portion , The tip has an outer bulge that can slide on the inclined surface , and a shape that swells toward the knob piece on the inner side of the pressing piece , and the tip on the inclined surface in the closed state. And an inner bulging portion that is slidably contacted.

  In the packaging container of the above-mentioned form, the inner bulging part serves as a fulcrum by pressing the pressing piece part by sandwiching the tip part of the picking piece part and the pressing piece part with the thumb and forefinger, etc. An opportunity to lift the fitting portion is generated, and then the fulcrum is moved to the outer bulging portion to lift one fitting portion on the container main body side or the lid side. Therefore, the fitting part can be lifted with a large force at the beginning, and then the lid is opened while the fulcrum moves away from the fitting part, so that the fitting part is lifted and the fitting part is in the mating state. Can be released. In addition, since the inner bulging portion and the outer bulging portion slide on the inclined surface and slide down, one of the fitting portions on the container main body side or the lid side is pushed inward, and the fitting state is easily released. Can be opened.

  The inclined surface may be a concave curved surface. By doing so, when the lid is opened, the outer bulging portion and the inner bulging portion are surely directed to the inside of the container, and the lid opening operation is facilitated.

  A container main body or a lid | cover can be formed in planar view polygonal shape, and the said knob | pick piece part can be formed in an at least 1 corner part. Since the corner is a corner, it has strength and is difficult to bend during the lid opening operation.

  The outer bulging portion and the inner bulging portion can be formed by integrally bulging in a shape of a plan view. By doing in this way, a pressing piece part becomes difficult to deform | transform, force can be efficiently transmitted to a fitting part, and a lid opening operation | work can be performed easily.

  A skirt can be formed on the outer edge of the container body or lid. By doing in this way, an outer edge part becomes difficult to bend and it becomes easy to open a lid | cover.

It is a perspective view of the packaging container of one Embodiment of this invention. FIG. 2 is an enlarged cross-sectional view showing a state where the packaging container of FIG. 1 is opened. FIG. 2 is an enlarged perspective view of the vicinity of an inclined surface of the packaging container of FIG. 1. It is the expansion perspective view which looked down at the swelling part vicinity of the packaging container of FIG. 1 from the bottom face side. It is sectional drawing of the inclined surface and bulging part vicinity of the packaging container of FIG. The modification of the swelling part in the packaging container of FIG. 1 is shown, (A) is a bottom perspective view, (B) is sectional drawing. The other modification of the bulging part in the packaging container of FIG. 1 is shown, (A) is a bottom perspective view, (B) is sectional drawing. It is the expanded sectional view which showed the closed state of the packaging container of FIG. It is a figure for demonstrating the opening operation | work of the packaging container of FIG.

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

  As shown in FIG. 1, the packaging container 1 according to an embodiment of the present invention includes a container body 2 and a lid 3, and can package, for example, food and the like, and stores a lunch box container and a side dish. It can be used as a container.

The container body 2 and the lid 3 are not particularly limited, but can be manufactured by thermoforming a synthetic resin sheet having a sheet thickness of 0.1 mm to 4 mm. Examples of the synthetic resin sheet include a thermoplastic resin sheet such as a polystyrene resin sheet, a polyethylene resin sheet, a polypropylene resin sheet, and a polyethylene terephthalate resin sheet. The thermoforming includes vacuum molding, pressure molding, and vacuum. Examples include pressure forming and hot plate forming.
The container body 2 and the lid portion 3 may be colored such as black or white, but are preferably transparent or translucent so that the inside can be visually recognized. Both may be different, for example, the lid 3 is transparent and the container body 2 is white.

  As shown in FIG. 1 or FIG. 2, the container main body 2 has a main body wall portion 22 formed on the peripheral edge portion of the bottom surface portion 21 having a square shape in plan view. The main body wall portion 22 has a shape that spreads outward in a multistage manner while facing upward. A fitting portion 23 is formed at the upper end portion of the main body wall portion 22. The fitting portion 23 is formed as a vertical surface that extends upward in a substantially vertical shape from the upper edge portion of the main body wall portion 22, and is provided with a concave groove 24 that is recessed from the inner side to the outer side in the circumferential direction. A horizontal flange portion 25 extending outward is formed on the upper edge portion of the fitting portion 23. A skirt portion 26 that is inclined downward is formed on the outer edge portion of the flange portion 25. Providing the skirt portion 26 makes it difficult for the flange portion 25 to bend.

  In the vicinity of the four corners of the container main body 2, as shown in FIG. 3, a knob piece 27 is formed by extending the flange 25 outward, and the upper surface of the knob piece 27 is upward and outward. An inclined surface 28 that is inclined in the direction is formed. The inclined surface 28 is formed to bulge upward in a triangular shape in plan view. The inclined surface 28 is preferably formed so that the upper surface has a concave curved surface shape, that is, a mortar shape.

  In the present embodiment, the knob pieces 27 are formed at four locations at each corner of the container body 2, but may be formed at least at one location. In addition, the knob piece 27 may be formed by extending any portion of the outer edge of the container body 2 outward in a triangular shape in plan view, instead of the corner of the container body 2.

  As shown in FIG. 1 or FIG. 2, the lid 3 has a lid side wall portion 32 formed on the peripheral portion of the top plate portion 31 having a square shape in plan view. The lid side wall portion 32 has an inclined surface shape that expands downward. A fitted portion 33 that can be fitted to the fitting portion 23 of the container body 2 is formed in the lower end portion of the lid side wall portion 32 in the circumferential direction. The mated portion 33 is formed in a U-shape that is recessed downward, and on the outer vertical surface thereof, a protrusion 34 protruding outward is provided in the circumferential direction, The container body 2 and the lid 3 are formed so as to be fitted in the concave groove 24 of the fitting portion 23 in the closed state. A flange portion 35 extending horizontally outward is provided on the outer edge portion of the fitted portion 33. Near the corner of the lid 3, a pressing piece 36 is formed by extending the flange portion 35 outward. The pressing piece 36 faces the knob piece 27 at the top when the lid is closed. It is formed to be located.

As shown in FIG. 4, the pressing piece 36 has an outer bulging portion 37 that bulges downward on the tip side (near the corner), and an inner side that bulges the inner side downward. A bulging portion 38 is formed, and the inner bulging portion 38 is configured such that the lower end portion abuts on the inclined surface 28 in the closed state.
The inner bulging portion 38 is formed at two places, and the outer bulging portion 37 and the two inner bulging portions 38 are arranged so as to form an isosceles triangle shape in a plan view. The two inner bulging portions 38 and the outer bulging portion 37 are integrally formed by bulging the corners of the lid 3 downward along the edge in the shape of a plan view, as shown in FIG. Further, the inner bulging portion 38 and the outer bulging portion 37 are formed to have substantially the same protruding width. The lower end portions of the outer bulging portion 37 and the inner bulging portion 38 are preferably formed in a cross-sectional arc shape or a curved shape so that the inclined surface 28 can be easily slid.
In the present embodiment, the pair of pressing pieces 36 are formed at the corners on the diagonal line of the lid 2, but it may be formed at least at one place.
Further, as shown in FIG. 6, for example, the outer bulging portion 37 and the inner bulging portion 38 may bulge the outer bulging portion 37 and the inner bulging portion 38 in a spherical shape, as shown in FIG. As shown, an intermediate portion between the outer bulging portion 37 and the inner bulging portion 38 may be formed to bulge with the same protruding width. The protruding widths of the outer bulging portion 37 and the inner bulging portion 38 may be different. For example, the outer bulging portion 37 may be longer or the inner bulging portion 38 may be longer. Good.

  In the present embodiment, the container body 2 and the lid 3 are formed in a square shape in plan view. However, the present invention is not limited to this, and the plan view polygonal shape such as a rectangular shape in plan view, a hexagonal shape in plan view, or a plan view. It can also be formed in a circular shape.

  In order to cover the container body 2 with the lid 3, the lid 3 is pushed from above the container body 2 and the fitted portion 33 is fitted to the fitting portion 23. At this time, as shown in FIG. 5, the lower end portion of the inner bulging portion 38 is in contact with the inclined surface 28, and the outer bulging portion 37 is slightly lifted from the inclined surface 28. However, you may form so that the outer side bulging part 37 may contact | abut to the inclined surface 28 at the time of a lid closing.

  To open the lid 3 from the container body 2, as shown in FIG. 8, for example, the index finger I is picked and applied to the outer edge of the piece 27 (the lower end of the skirt 6) from below, and the thumb T is pressed down. By applying a force so that the outer edge of the portion 36 is applied from above, the pressing piece 36 is pushed down so that the fitting between the fitting portion 23 and the fitted portion 33 is released and the lid can be opened.

  More specifically, by pushing down the outer edge portion of the pressing piece portion 36, the pressing piece portion 36 tilts with the lower end portion of the inner bulging portion 38 as a fulcrum, so that a force that is lifted upward acts on the fitted portion 33. At this time, the inner bulging portion 38 slides down the inclined surface 28. That is, since the inner bulging portion 38 moves to the inside of the container, a force pushed inward by the fitted portion 33 also works. Further, when the pressing piece portion 36 is pushed down, the fulcrum moves from the inner bulging portion 38 to the outer bulging portion 37. That is, the fulcrum moves to the outside of the container, and the distance between the fitted part 33 and the fulcrum becomes longer, so that the fitted part 33 can be lifted higher. As shown in FIG. The fitting state with the joint portion 33 can be released.

Thus, when the fitting state of the fitting part 23 and the to-be-fitted part 33 is cancelled | released, the pressing piece part 36 can be moved initially by using the inner side bulging part 38 as a fulcrum. Since the inner bulging portion 38 is close to the fitted portion 33, the fitted state of the fitted portion 33 is released with a large force. Further, since the inner bulging portion 38 moves to the inside of the container while sliding down the inclined surface 28, the protrusion 34 of the fitted portion 33 is pushed to the inside of the container and is released from the concave groove 24 of the fitting portion 23. Force will work in the direction that is easy to do. After that, the fulcrum moves from the inner bulge portion 38 to the outer bulge portion 37, and the fulcrum becomes far away, so that the fitted portion 33 is lifted high.
With such an action, if the pressing piece 36 is pushed down, the fitting between the fitting portion 23 and the fitted portion 33 is released and the lid can be easily opened.

In the present embodiment, the lid 3 is configured to fit inside the container body 2, but the structure of the fitting portion that fits the container body 3 and the lid 2 is at least one of inner fitting and outer fitting. As long as the structure is provided, either internal fitting or external fitting may be employed, or internal / external fitting including both internal fitting and external fitting may be employed.
Further, although the knob piece 27 is provided on the container body 2 and the pressing piece portion 36 is provided on the lid 3, the knob piece portion may be provided on the lid 3 and the pressing piece portion may be provided on the container body 2.

  The configuration aspect of the above embodiment is not intended to limit the present invention, but can be changed as long as the technical purpose is common, and the present invention includes such a change.

1 packaging container 2 container body 21 bottom surface part 22 body wall part 23 fitting part 24 concave groove 25 flange part 26 skirt part 27 knob piece part 28 inclined surface 3 lid 31 top plate part 32 lid side wall part 33 fitting part 34 protrusion Article 35 Flange part 36 Pressed piece part 37 Outer bulge part 38 Inner bulge part

Claims (5)

In the packaging container having the structure of the fitting portion that fits the container body and the lid, the structure having at least one of the inner fitting and the outer fitting, the container body or the lid is placed outside the fitting portion. Provided on the surface of the knob piece, the inclined surface inclined to protrude toward the other side of the container main body or the lid while facing outward from the container, and the other of the container main body or the lid, a pressing piece portion facing the該摘seen piece in closed state, with the container outer side of the pressing lower piece, a shape bulging該摘viewed piece portion, the outer tip portion is slidable inclined surface a bulging portion, provided on the container inner side of the pressing lower piece, a shape bulging該摘viewed piece portion, and the inner bulge portion tip slidably abuts against the inclined surface in the closed state, Packaging container equipped with.   The packaging container according to claim 1, wherein the inclined surface is a concave curved surface. 3. The packaging container according to claim 1, wherein the container body or the lid has a polygonal shape in a plan view and includes the knob piece at at least one corner. Wherein the outer bulging portion and the inner bulging portion, the packaging container according to any one of claims 1 to 3 was integrally bulging shape shaped to the plan view. The packaging container according to any one of claims 1 to 4, wherein a skirt portion is provided on an outer edge portion of the container body or the lid.

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