Packaging containers

Abstract

To provide a packaging container that does not have a raised portion or the like to lift up a knob portion, and is easy to open even if the knob portion is small.SOLUTION: A packaging container including a lid body 3 to cover a container body 2, includes: a body skirt portion 24 on a circumference of the container body 2 and facing downward; a lid body skirt portion 34 overlapping on the body skirt portion 24 on a circumference of the lid body 3; an extending portion 24a extending the body skirt portion 24 downward; a flat body knob portion 25 protruding outward at a lower end portion of the extending portion 24a; and a space portion S formed by inwardly concaving the body skirt portion 24 near the body knob portion 25 and / or outwardly expanding the lid body skirt portion 34 near the body knob portion 25, that is provided between the body skirt portion 24 and the lid body skirt portion 34, and in which a finger tip is inserted.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a packaging container that can be easily opened without enlarging the grip portion. [Background technology]

[0002] BACKGROUND ART Containers made by thermoforming thin resin sheets are the mainstream for packaging food items such as boxed lunches and prepared meals in supermarkets, convenience stores, and the like. To make such containers easier to open, for example, the container body and lid are provided with tongue-like tabs that protrude outward, and the container can be opened by pinching them and pulling them in opposite directions.

[0003] In containers provided with a knob, the knob is sometimes made larger to make it easier to grip and open. However, making the handle larger would result in a protruding portion from the container, which could be unsightly and cause design problems.Furthermore, the handle could interfere with other containers during transportation, making it difficult to arrange the containers.

[0004] Furthermore, some containers have a knob in which the tip of the knob is raised to provide a gap so that fingers can be easily inserted. For example, Patent Document 1 below discloses a container in which a protrusion that protrudes downward is formed on the grip portion, and when the protrusion abuts against the inclined surface of the container body, the grip portion is raised from the inclined surface, forming a gap for inserting a fingertip. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-51325 Summary of the Invention [Problem to be solved by the invention]

[0006] The container in Patent Document 1 has a raised tip on the handle, which allows for a gap for inserting the fingertips, making it easy to grip. However, if the knob is made larger to increase the gap in pursuit of ease of gripping, this can cause manufacturing problems, such as making it difficult to mold the container. Furthermore, if the handle is designed to be raised significantly, this can be noticeable and detract from the design of the container.

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a packaging container that does not require a protrusion or the like to raise the tab and that is easy to open even if the tab is small. [Means for solving the problem]

[0008] A packaging container according to one embodiment of the present invention is a packaging container having a lid to be placed on a container body, and includes a body skirt portion extending downward around the periphery of the container body, a lid skirt portion overlapping the body skirt portion around the periphery of the lid, an extension portion extending downward from the body skirt portion, and a lower end portion of the extension portion. beside A flat plate-shaped main body grip that protrudes in the direction of the arrow, a lid knob at a lower end of the lid skirt portion, the lid knob facing the main body knob in parallel with a gap; The skirt part of the main body near the grip part of the main body is recessed inward, and / or the skirt part of the lid near the grip part of the main body is bulged outward. hand Body skirt part and lid skirt part a gap is provided so that the gripping portion of the main body and the gripping portion of the lid are not in contact with each other, and the gap is formed so as to be continuous between the gripping portion of the main body and the gripping portion of the lid, and a space portion.

[0009] In the packaging container of the above-mentioned form, a space is provided between the lid skirt portion and the main body skirt portion, and fingertips can be inserted into this space, so that, for example, by inserting the thumb of one hand into the space and gripping the main body grip portion with the other hand, the lid can be removed by lifting up the lid skirt portion, making it easy to open. Furthermore, the main body grip portion only needs to be large enough to be gripped to support the container body, so even if it is small, it will still function and the design can be improved.

[0010] The packaging container of the above embodiment may be provided with a flat lid handle at the lower end of the lid skirt portion, facing the main body handle. This makes it easier to roll up the skirt portion of the lid, making it easier to open.

[0011] In the packaging container of the above embodiment, the main body gripping portion can be formed as an uneven surface. This prevents the main body grip from slipping when gripping, and also makes the main body grip less likely to bend or deform, making it easier to open the container.

[0012] The packaging container of the above form can be made into a polygonal shape with rounded corners when viewed in a plane, with a space provided near at least one corner, and the main body gripping portion can be accommodated within an area surrounded by lines extending two sides that form at least one corner. In this way, the container can be shaped to fit within a polygonal shape in plan view, improving the design of the container, and the space makes it easy to open even with a small main body grip. [Brief explanation of the drawings]

[0013] [Figure 1] 1A and 1B are front views showing a packaging container according to one embodiment of the present invention, in which FIG. 1A is a front view in an open state and FIG. 1B is a front view in a closed state. [Figure 2] FIG. 2 is a plan view of a container body of the packaging container of FIG. [Figure 3] FIG. 2 is a plan view of the lid of the packaging container of FIG. [Figure 4] 2 is a partially enlarged view of a planar central cross section of the packaging container of FIG. 1. FIG. [Figure 5] 2 is a partially enlarged cross-sectional view of the packaging container of FIG. 1, taken along the line adjacent to the grip portion. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, one embodiment of the packaging container of the present invention will be described with reference to the drawings.

[0015] A packaging container 1 according to one embodiment of the present invention includes a container body 2 and a lid body 3 that covers the container body 2, as shown in FIG. The packaging container 1 is formed in the shape of a horizontally elongated rectangular box, and although not particularly limited, can be sized to be approximately 50 mm to 150 mm in height, 50 mm to 300 mm in length, and 50 mm to 150 mm in width, and is suitable for storing food items such as prepared foods, fruits, vegetables, rice dishes, noodles, etc. However, the items to be stored are not limited to these.

[0016] The packaging container 1 is not limited to the above shapes, and can be, for example, circular, oval, triangular, quadrangular such as a square, rectangle, or parallelogram, or polygonal such as a pentagon, hexagon, or octagon when viewed from above, and it is preferable that the corners are rounded.

[0017] As shown in Figures 1, 2 or 4, the container body 2 is formed in the shape of a deep dish and comprises a bottom surface portion 21, a peripheral wall surface portion 22 that rises from the periphery of the bottom surface portion 21 to surround the bottom surface portion 21, and a body fitting portion 23 in which the upper edge of the peripheral wall surface portion 22 is folded back to the outside of the body and into which the lid body 3 is fitted, and as shown in Figures 4 or 5, the surface of the body fitting portion 23 that is located on the outside of the body is a body skirt portion 24.

[0018] As shown in Fig. 2, the bottom surface 21 has an oval shape in a plan view, and is provided on the left and right sides with leg portions 21a that are C-shaped in a plan view and protrude downward. In addition, the center of the bottom surface 21 is bulged upward in an arch shape, as shown in Fig. 1. The bottom surfaces of the leg portions 21a are provided with ridge portions 21b that protrude inward of the main body and are arranged in a radial direction.

[0019] The peripheral wall surface portion 22 is formed so as to widen upward from the peripheral edge of the bottom surface portion 21, and the opening is shaped like a rectangle with rounded corners in a plan view. As shown in FIG. 2 or 5, the upper half of each corner of the peripheral wall surface portion 22 is configured to widen upward in a stepped manner, thereby providing a structure for reinforcing the peripheral wall surface portion 22.

[0020] The body fitting portion 23 is provided on the upper edge of the peripheral wall surface portion 22, and as shown in Figure 4, is formed by folding back to form a U-shaped cross section that opens downward, and the lid body 3 fits into it to cover the opening of the container body 2. The body fitting portion 23 has reverse tapered inner and outer surfaces so that the lid body 3 fits inside and outside.

[0021] The outer surface of the main body fitting portion 23 is a main body skirt portion 24, which in this embodiment is a substantially vertical surface facing downward. A portion of the main body skirt portion 24 is formed as an extension portion 24a that extends downward more than the other portion, and the lower end of the main body skirt portion 24 is formed to extend gently downward as shown in Figure 1. In this embodiment, the extension portions 24a are provided at two opposing corners.

[0022] The lower end of the extension 24a is provided with a flat, tongue-like main gripping portion 25. As shown in Fig. 5, the main gripping portion 25 is formed with a stepped surface with steps 25a to prevent slipping when gripping and to make it less likely to bend. In this embodiment, the main gripping portion 25 is formed as a stepped surface with steps 25a, but a concave-convex surface with ridges or grooves will have the same effect.

[0023] When the packaging container 1 has a polygonal shape with rounded corners in a plan view, the main body gripping portion 25 is preferably provided at a corner, and in this case, it is preferable that the size of the main body gripping portion 25 is set to fit within the area surrounded by lines (dotted chain lines in Figure 2) extending from two sides that form the corner where the main body gripping portion 25 is located. The design can be improved by reducing the protruding width of the main body gripping portion 25.

[0024] The skirt portion 24 of the main body near the gripping portion 25 of the main body is recessed inward to form a recessed portion 26, which forms a space S to be described later.

[0025] As shown in Figures 1, 3 and 4, the lid body 3 is formed in the shape of a low, deformed trapezoid, and comprises a top surface 31, a peripheral wall surface 32 extending downward from the periphery of the top surface 31, and a lid body fitting portion 33 provided around the lower end of the peripheral wall surface 32 that fits into the main body fitting portion 23, and the surface located outside the lid body fitting portion 33 is a lid body skirt portion 34.

[0026] The top surface 31 has an oval shape in plan view, and is provided on the left and right with recessed receiving portions 31a that are C-shaped in plan view and recessed downward, on which the legs 21a of the container body 2 are placed. The peripheral wall surface portion 32 is an inclined surface that widens downward from the periphery of the top surface portion 31, and its lower end portion is formed as a horizontal surface that projects outward.

[0027] The lid fitting portion 33 is provided around the peripheral wall surface portion 32 and has a U-shaped cross section with an open bottom, so that it can be fitted inside and outside the main body fitting portion 23. The outer surface of the lid body fitting portion 33 is the lid body skirt portion 34, which in this embodiment is an approximately vertical surface facing downward, and is designed to overlap the main body skirt portion 24 when the lid body 3 is fitted to the container main body 2. In this embodiment, the lid body 3 is fitted inside and outside the container body 2, but this is not limitative and the lid body 3 may be fitted outside or inside.

[0028] A flat lid knob 35 that protrudes outward like a tongue is provided at the lower end of the lid skirt 34, facing the main body knob 25, with a gap between the lid knob 35 and the main body knob 25 large enough to allow a fingertip to be inserted. In this embodiment, the lid knob 35 has a smaller protruding width than the main body knob 25, but this is not limitative. The cover grip portion 35 may have an uneven surface, similar to the main body grip portion 25.

[0029] The lid skirt portion 34 near the lid grip portion 35 is bulged outward to form a bulge 36, which, together with the recessed portion 26, forms a space S into which a fingertip can be inserted, as shown in Figure 5. In this embodiment, the bulge 36 is bulged into a modified M-shape in plan view, but is not limited to this.

[0030] In addition, in this embodiment, the space S is formed by providing both the recessed portion 26 and the bulged portion 36, but it is sufficient to provide either the recessed portion 26 or the bulged portion 36 as long as a space S into which a fingertip can be inserted can be formed.

[0031] An example of a method for manufacturing the container body 2 and the lid body 3 will now be described. Although there are no particular limitations, the container body 2 and the lid 3 can be manufactured by thermoforming a synthetic resin sheet. The synthetic resin sheet may be either a thin non-foamed resin sheet or a thin foamed resin sheet, with a non-foamed resin sheet being preferred. In the case of a non-foamed resin sheet, it is preferable to use a sheet having a thickness in the range of 0.1 mm to 2.0 mm, particularly in the range of 0.2 mm to 1.2 mm. In the case of a foamed resin sheet, it is preferable to use a sheet having a thickness in the range of 0.5 mm to 4.0 mm, particularly 0.7 mm to 2.2 mm, and it is also preferable to use a foamed resin sheet having an expansion ratio of 1.05 to 20.0 times, particularly 1.5 to 15.0 times.

[0032] Examples of non-foamed resin sheets that can be used include thermoplastic resin sheets such as polyolefin resin sheets, such as polyethylene resin sheets and polypropylene resin sheets, and polyester resin sheets, such as polystyrene resin sheets, polyethylene terephthalate resin sheets, and heat-resistant modified polyethylene terephthalate resin sheets. Furthermore, materials that can withstand heating in a microwave oven, such as heat-resistant polystyrene resin sheets, polypropylene resin sheets, and heat-resistant modified polyethylene terephthalate resin sheets, may also be used.

[0033] Examples of foamed resin sheets that can be used include foamed polyolefin resin sheets, foamed polystyrene resin sheets, and foamed polyester resin sheets such as foamed polyethylene terephthalate. A laminated sheet obtained by laminating synthetic resin sheets can also be used. Examples of the laminated sheet include a laminated sheet obtained by thermally laminating a resin film onto a non-foamed resin sheet or a foamed resin sheet, a laminated sheet obtained by a co-extrusion method, and a laminated sheet obtained by an extrusion lamination method.

[0034] Biomass plastics may be used for the non-foamed resin sheet, the foamed resin sheet, and the laminated sheet. Biomass plastics are polymeric materials obtained by chemical or biological synthesis using renewable organic resources as raw materials. Compared to petroleum-derived resins, biomass plastics can reduce carbon dioxide emissions into the atmosphere, thereby reducing the burden on the environment. Examples of biomass plastics include polylactic acid resin, biomass polyethylene, and biomass polyethylene terephthalate.

[0035] Examples of thermoforming include vacuum forming, pressure forming, vacuum pressure forming, and hot plate forming.

[0036] The container body 2 and the lid 3 may be colored, such as black or white, but are preferably transparent or translucent so that the inside can be seen. The lid 3 may be transparent or translucent, and the container body 2 may be opaque, such as black. If they are transparent or translucent, the surfaces of the container body 2 and the lid 3 may be printed or engraved with letters, pictures, etc., to the extent that visibility is not impaired, and reinforcing ribs may be provided in appropriate positions, or a textured finish may be applied to prevent slipping. The container body 2 and the lid body 3 may be provided with stacking projections that bulge out in the shape of a cube or rectangular parallelepiped.

[0037] An example of how to use the packaging container 1 will be described below. The packaging container 1 can be used by placing food or other items in the container body 2, placing the lid body 3 over the container body 2 and pressing it from above, and fitting the lid body fitting portion 33 into the body fitting portion 23.

[0038] To open the packaging container 1, for example, pinch the body gripping portion 25 of the container body 2 with the thumb and index finger of the right hand, place the thumb of the left hand between the lid gripping portion 35 and the body gripping portion 25, bend the fingertips upward and insert them into the space S between the lid skirt portion 34 and the body skirt portion 24, and roll up the lid skirt portion 34 of the lid body 3 to release the outer engagement of both engagement portions 23, 33.By pulling up in this state, the inner lid engagement portion 33 bends and releases its engagement with the body engagement portion 23, allowing the lid body 3 to be removed from the container body 2 and opened.

[0039] If the main body grip part 25 is provided with a stepped part 25a or other uneven surface, the main body grip part 25 can be gripped without slipping and is also less likely to bend, so that the seal can be opened without losing force.

[0040] Furthermore, the protruding width of the main body knob 25 and the lid knob 35 can be reduced, and even if the knobs are made small, the space S does not impair the ease of opening the container.

[0041] The configurations of the above-described embodiments are not intended to limit the present invention, and modifications are possible as long as the technical purpose is the same, and the present invention includes such modifications. [Explanation of symbols]

[0042] 1 Packaging container 2 Container body 21 Bottom part 21a Legs 21b Convex part 22 Surrounding wall section 23 Main body fitting part 24 Main body skirt 24a Extension 25 Main body knob 25a Step 26 Depression 3 Lid 31 Top section 31a Recessed receiving part 32 Surrounding wall section 33 Lid fitting portion 34 Lid skirt 35 Lid grip 36 Bulge S space

Claims

1. A packaging container provided with a lid body to be placed on a container body, a main body skirt portion extending downward from the periphery of the container main body; a lid skirt portion that overlaps the main body skirt portion at the periphery of the lid; an extension portion extending downward from the main body skirt portion; a flat plate-shaped main body gripping portion extending laterally from a lower end of the extension portion; a lid knob at a lower end of the lid skirt portion, the lid knob facing the main body knob in parallel with and spaced apart from the main body knob; a space for inserting a fingertip, the space being formed by recessing the main body skirt portion near the main body grip portion inward and / or expanding the lid skirt portion near the main body grip portion outward to prevent the main body skirt portion and the lid skirt portion from coming into contact with each other, and the space being formed so that the space is continuous between the main body grip portion and the lid grip portion; A packaging container comprising:

2. 2. The packaging container according to claim 1, wherein the main body gripping portion is formed as an uneven surface.

3. 3. The packaging container according to claim 1, wherein the packaging container has a polygonal shape with rounded corners when viewed from above, the space is provided near at least one corner, and the main body gripping portion is arranged within an area surrounded by lines extending two sides that form the at least one corner.

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