JP2002337860A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container presenting a high-grade impression and capable of being simply assembled and easily disassembled. SOLUTION: The packaging container is composed of a thin-wall container main body 1 made of a plastic, forming a flange part 12 provided projectingly in an outward direction along a peripheral edge of an upper end opening of a tray body 11 and forming an engaging flap 13 along an outer side edge of the flange part 12, and an outer frame body 2 formed into a size and a shape corresponding to the container main body 1. The outer frame body 2 has an engaging groove 22 which is formed along a position close to an upper end of an inside wall face of a cylindrical body 21 whose upper and lower ends are opened. The engaging groove 22 opens in the inside direction of the body 21 and consists of a first groove 22a forming its top wall face 24 into the shape of a substantially horizontal wall face and a second grove 22b formed into a tapered shape slanting downwardly from the groove 22a to allow the engaging flap 13 to be inserted thereinto in an engageable manner. Thus, the packaging container is constituted so as to allow the container main body 1 to be contained in the outer frame body 2 by inserting the flap 13 into the second groove 22b in an engageable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package mainly for storing various kinds of bento or other various foods.

[0002]

2. Description of the Related Art Conventionally, as a packaging container for foods such as various kinds of lunches, there is a packaging container formed of thin plastic (Prior art 1). This container is to be sold in this state, with a lunch box or the like housed therein and covered with a lid.

As another conventional food packaging container, there is a packaging container in which a plastic inner container (the same container as in the first example) is housed in an outer container made of styrene foam or the like (first example 2). In this container, a lunch box or the like is accommodated in an inner container (tray body) and a lid is put thereon, and the container is sold in this state. Since the container of the preceding example 2 is configured by housing the inner container (tray body) in the outer container, it has a better appearance and a high-class feel than the container of the preceding example 1.

However, in the container of the prior art example 2, the inner container is housed in the outer container, and a predetermined portion of the inner container is bonded to a predetermined portion of the outer container to integrate the two. The container of Example 2 has the following problems. (1) The process of assembling and manufacturing the packaging container is troublesome. (2) Since the outer container and the tray body are formed integrally, the space for transportation is increased, the transportation cost is increased, and the storage space for the container is increased. (3)
Since the container of the preceding example 2 is discarded as it is after use, the volume of the garbage becomes large, and the collection bag or the like becomes full immediately.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a packaging container which can be easily assembled and disassembled without deteriorating a sense of quality. In addition, the present invention according to another aspect of the present invention provides a packaging container that can reduce the space for transportation and storage and reduce the volume for disposal in addition to the above objects. It is the purpose.

[0006]

Means for Solving the Problems To achieve the above object, of the present invention, the invention according to claim 1 (first invention)
Comprises a container body, an outer frame body formed in a size and shape corresponding to the container body, and containing the container body, the container body is made of plastic, a tray body for containing the contents A flange protruding substantially horizontally outward along the peripheral edge of the upper end opening of the tray body; and an engagement hanging piece formed downward along the outer edge of the flange. The exterior frame has a cylindrical body with upper and lower ends opened, and an engagement groove formed on the inner wall surface of the body along the vicinity of the upper end of the body. Has a first groove opened inward of the body portion, and a second groove formed in communication with the first groove, and the top wall surface of the first groove is substantially horizontal. The second groove is formed so as to be tapered diagonally downward from the opening of the first groove, and the engagement hanging piece is engaged with the second groove. Configured to, characterized in that said suspended piece and configured to accommodate the container body engageably inserted into the second groove to the exterior frame.

According to the first aspect of the present invention, when the tray body is pushed into the cylindrical body from the lower side of the outer frame, the engagement hanging pieces are engaged with the second groove through the first groove and the flange is formed. The portion is first engaged with the top wall surface of the groove, and the tray body is housed in the outer frame and assembled. Therefore, the assembling work of the packaging container can be easily performed, and at the same time, a high-class feeling is exhibited. Also,
The tray body is housed in the exterior frame body with the engagement hanging piece engaged in the second groove and the flange is engaged with the top wall surface of the first groove. Vertical movement is restricted. Therefore, it is possible to reliably prevent the tray body from accidentally falling out of the outer frame during use or handling. Furthermore, in a state where the tray body is housed in the outer frame body and assembled as described above,
By slightly expanding the upper end side of the exterior frame and applying a force to the side of the tray body to push it up strongly, the flange on the push-up side is disengaged from the top wall surface. The two can be separated by removing from the upper end side of the frame. Therefore, after use, the tray body and the outer frame body can be disassembled and discarded.

In the present invention, the invention according to claim 2 (second aspect)
In the packaging container according to the first aspect of the present invention, the cylindrical body portion of the outer frame body is formed by bending a rectangular plate material inward along each folding line formed on the plate material, and forming both ends of the plate material. It is continuously formed in a polygonal shape, and each of the fold lines is constituted by two V-shaped cut grooves formed in a predetermined portion of the plate material in parallel in a width direction of the plate material. .

According to the second aspect of the invention, in addition to the functions and effects of the first aspect, since the exterior frame can be folded along the folding line, the volume of the exterior frame can be reduced.

The invention according to claim 3 (third invention) is characterized in that, in the packaging container according to claim 2, the tubular body of the outer frame is formed in a substantially square shape. According to the third aspect, since the exterior frame body can be folded flat along the folding line at the opposed corner, the volume of the exterior frame body can be further reduced. Therefore, according to the third aspect, in addition to the above-described functions and effects, a space for carrying and storing can be reduced, and a volume for disposal can be reduced.

The invention according to claim 4 (fourth invention) is characterized in that, in the invention according to claim 2, the cylindrical body of the exterior frame is formed in a polygonal shape having an even number of corners other than a square. Features. According to the fourth invention, the same operation and effect as those of the third invention can be obtained.

According to a fifth aspect of the present invention, there is provided the packaging container according to the first aspect, wherein the cylindrical body of the outer frame is formed of a rectangular plate along a folding line formed on the plate. The sheet material is bent inward and bent, and both ends of the plate material are connected to each other to form a substantially rounded square shape. It is characterized by comprising a plurality of cut grooves formed in parallel at intervals.

According to the fifth aspect, the exterior frame can be folded with the opposing corners rounded, so that the volume of the exterior frame can be reduced (however,
The thickness is slightly larger than in the third and fourth inventions).
Therefore, the same operation and effect as those of the third invention can be obtained.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the cylindrical body of the exterior frame is formed by bending a rectangular plate into a circular shape and connecting both ends of the plate. And a circular shape. According to the sixth aspect, the same operation and effect as those of the first aspect can be obtained.

According to a seventh aspect of the present invention, there is provided the packaging container according to any one of the first to sixth aspects, wherein a plastic film is laminated on the outer surface of the cylindrical body of the outer frame. Features. According to the seventh aspect, the tubular body can be reinforced and made strong.

[0016]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing the entire configuration of an embodiment of a packaging container according to the present invention. FIG. 1A is a perspective view of an outer frame, FIG. 1B is a perspective view of a container body, and FIG. FIG. 3 is a perspective view showing a state of being housed and assembled in an exterior frame body, FIG. 3 is an explanatory view showing a part of a fold line formed in a cylindrical body, and FIG. FIG. 5 is an enlarged cross-sectional view for explaining an engagement groove formed in a cylindrical body, FIG. 5 is an explanatory view showing a step of forming an engagement groove, and FIG. FIG. 7 is an explanatory view showing a state in which the exterior frame body is folded flat, FIG. 8 is an illustration showing a plate material constituting the exterior frame body, and FIG. FIG. 4 is an explanatory view showing a step of performing

In FIGS. 1 to 9, the packaging container of this embodiment (Embodiment 1) includes a container body 1,
It is formed in a size and shape corresponding to this container body 1,
And an exterior frame 2 that houses the container body 1.

The container body 1 is provided with a tray 11 for accommodating contents (not shown) such as a lunch box and other foods, and is arranged substantially horizontally outward along the entire periphery of the upper end opening of the tray 11. It has a protruding flange portion 12 and an engagement hanging piece 13 formed downward along the entire outer edge of the flange portion 12. The container main body 1 is made of, for example, vinyl chloride, polypropylene, polyethylene or other thin plastics by molding in the same manner as in the prior art.

The container body 1 according to the first embodiment is formed in a substantially rectangular shape, and a partition 14 is formed in a tray body 11 to form a plurality (five in the drawing) of accommodating portions 15. Further, in the illustrated container body 1, a small radius is attached to each corner 16 of the flange 12. As shown in detail in FIG. 6, the hanging piece 13 of the first embodiment is formed to have a tapered shape so that the diameter of the hanging piece 13 is slightly increased in an outward direction. In this case, the hanging piece 13 may be configured as a hanging piece that hangs at a substantially right angle from the outer edge of the flange 12.

The outer frame 2 is a tubular body 2 having upper and lower ends opened.
1 and an engagement groove 22 formed endlessly on the inner wall surface of the body 21 near the upper end of the body 21. The engagement groove 22 has an opening 2 inward of the body 21.
2e, a first groove 22a and a second groove 22b formed in communication with the groove 22a. The top wall surface 24 of the first groove 22a is formed on a substantially horizontal wall surface, and the second groove 22b Is the first
The groove 22a is formed so as to be tapered diagonally downward from the opening 22e of the groove 22a so that the hanging piece 13 is engaged. Then, the hanging piece 13 is inserted into the first groove 22.
The container body 1 is engaged with the second groove 22b through a to accommodate the container body 1 in the outer frame 2.

The cylindrical body 21 of the exterior frame 2 of the first embodiment
Is formed in a substantially rectangular shape having a size corresponding to that of the container body 1. The body 21 has a plurality of rectangular plate members 23 formed at predetermined intervals on the plate member 23 (four in the drawing).
Of the plate material 23, and the both ends of the plate material 23 are continuously bonded 23c by heat welding (hot melt) or other means. The plate 23 is made of, for example, styrofoam, cardboard, or wood.

As shown in detail in FIG. 3, each of the folding lines 24 is composed of two V-shaped cut grooves 24a and 24b formed in a predetermined portion of the plate 23 in parallel in the width direction of the plate 23. ing. As a result, as shown in detail in FIG. 3B, the plate material 23 is bent inwardly along each folding line 24 so that a flat surface having a predetermined width is formed at each bending corner 25. Then, as shown in FIG. 9, both ends 23a and 23b of the plate member 23 are continuously bonded 23c by heat welding or the like, so that a substantially rectangular cylindrical body 21 is formed.
Is formed.

The engaging groove 22 of the outer frame 2 can be formed, for example, by the following method. That is, as shown in FIG. 5B, a saw blade 26 rotating in an oblique direction is
A cut groove 22c directed obliquely downward is formed in a predetermined portion of No. 3. Next, as shown in FIG. 5D, a notch groove 22d extending in the horizontal direction is formed on the upper end side of the groove 22c using a saw blade 27 that rotates in the horizontal direction. This allows
As shown in FIG. 5e, an engaging groove 22 having first and second grooves 22a and 22b formed by the grooves 22c and 22d is formed. The top wall surface of the first groove 22a is formed on the horizontal wall surface by the saw blade 27.

The packaging container according to the first embodiment is constructed as described above. Next, the method of use and operation will be described. As shown in FIG. 7, the exterior frame body 2 has opposite corner portions 25.
Can be folded flat along the fold line 24, and is shipped and stored in this state. And when needed,
When the outer frame 2 is expanded into a square shape and the tray body 1 is pushed into the cylindrical body 21 from the lower side of the outer frame 2 as shown in FIG. 6A, the engagement hanging pieces as shown in FIG. 13 is engaged with the second groove 22b through the first groove 22a, and the flange portion 12 is engaged with the top wall surface 24 of the first groove 22a, so that the tray body 1 is housed in the outer frame 2, The container is assembled (see FIG. 2).

The packaging container assembled as described above is used for packing lunches and other foods, just like conventional packaging containers. In addition, although not shown, it is the same as in the prior art that an appropriate upper lid is covered. When discarded after use, the upper end side of the outer frame 2 is slightly pushed and spread, and a force is applied to the side portion of the tray body 1 to push it up strongly. Since the engagement with the wall surface 24 is released, the tray body 1 can be removed from the upper end side of the exterior frame body 2 to disassemble them.

Although the cylindrical body 21 of the outer frame 2 of the first embodiment is disclosed as being formed in a substantially rectangular shape, the body 21 may have a square, hexagonal, octagonal or other polygonal shape. Can be formed. In this case, it is preferable that the body 21 is formed in a polygonal shape having an even number of corners. When the body 21 is formed in an even polygonal shape, the body 21 can be folded flat.

FIG. 10 is an explanatory view showing a main part of another embodiment (Embodiment 2) of the packaging container of the present invention. The packaging container of the second embodiment is characterized in that the cylindrical body 21 is reinforced by laminating a plastic film 30 over the entire outer surface of the cylindrical body 21 of the outer frame 2 by thermocompression bonding or the like. It is. Other configurations are the same as those of the first embodiment, and therefore, the same components are denoted by the same reference numerals and description thereof will be omitted.

The packaging container according to the second embodiment is configured as described above, and is used in exactly the same manner as in the first embodiment, and has the same function and the like. According to the second embodiment, in addition to the first embodiment, the body 21 is reinforced by the film 30 and becomes strong.

FIG. 11 is a view showing the overall configuration of still another embodiment (Embodiment 3) of the packaging container of the present invention. FIG. 11A is a perspective view of an outer frame, and FIG. FIG. 12 is a perspective view of the main body, FIG. 12 is an explanatory view for explaining the exterior frame body, FIG. 12A is an expanded view of the entire plate material constituting the exterior frame body, and FIG. FIG. C is a plan view showing a state in which the above plate material is bent along the fold line and bent, and FIG. D is a view in which the same outer frame is folded. It is explanatory drawing which shows a state.

11 and 12, the packaging container according to the third embodiment has a container body 1A and an outer frame 2A formed in a size and shape corresponding to the container body 1A and accommodating the container body 1A. It consists of

The container main body 1A is made of any thin plastic as in the first embodiment by molding in the same manner as in the prior art. The container body 1A is formed in a substantially square shape, and each corner 16A of the flange 12 is formed in a circular shape.
2 is formed in a rounded square shape. Since other configurations are the same as those of the embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

The cylindrical body 21 of the outer frame 2A is formed by forming rectangular plate members 23 made of the same material as that of the first embodiment at four locations at predetermined intervals on the plate members 23.
The plate 23 is bent inward along the line 4, and both ends 23a and 23b of the plate member 23 are continuously joined 23c by means of hot welding (hot melt) or other means to form a substantially rounded square shape.

As shown in detail in FIG. 12, each of the fold lines 34 is formed at a predetermined portion of the plate 23 in parallel with a predetermined interval in the width direction of the plate 23 at a predetermined interval. ) Are formed.
As a result, as shown in detail in FIG. 12C, the plate material 23 is bent inward along each fold line 34 so that the plate material 23 is bent with each bending corner 35 being curved. The curvature and the curvature of the corners 35 can be adjusted by the number and intervals of the cut grooves 34a to 34e. The outer frame 2 having the cylindrical body 21 having a substantially rounded square shape is formed by continuously bonding both ends 23a and 23b of the plate material 23 by heat welding or the like.
A is formed. Since the other configuration of the engagement groove 22 and the other components are the same as those of the outer frame 2 of the first embodiment, the same reference numerals are given and the description is omitted.

The packaging container according to the third embodiment is configured as described above, and is used in the same manner as in the first embodiment, and has the same function and the like. Note that the exterior frame 2 of the third embodiment
As shown in FIG. 12D, A can be folded flat in a state in which the opposing corners 35 are rounded. Therefore, the volume in the folded state is slightly thicker than in the first embodiment.

FIG. 13 is a view showing the overall structure of still another embodiment (Embodiment 4) of the packaging container of the present invention, wherein FIG. 13A is a plan view of an outer frame, and FIG. It is a top view of a main body. The packaging container according to the fourth embodiment is characterized in that the container body 1B and the outer frame 2B are formed in a circular shape.

That is, the entire container body 1B is formed in a circular shape. Other configurations are the container body 1 of the first embodiment.
Therefore, the same components are denoted by the same reference numerals, and description thereof is omitted.

The cylindrical body 21 of the outer frame 2B is made of wood.
Alternatively, a rectangular plate 43 made of plastic or other material having elasticity is curved into a circular shape and the plate 4
3 is formed into a cylindrical shape by connecting both ends 23c by heat welding (hot melt) or other means. Although not shown, an engagement groove having the same configuration as the engagement groove 22 of the first embodiment is formed in the cylindrical body portion 21.

The packaging container according to the fourth embodiment is configured as described above, and is used in the same manner as in the first embodiment, and has the same function and the like. In the fourth embodiment,
By adopting a plastic material having elasticity as the plate material 43 of the exterior frame 2B, it is configured to be flat and foldable with both ends rounded similarly to the exterior frame 2A of the third embodiment. be able to.

[0039]

According to the present invention, the following effects can be obtained. (1) The assembling work of the packaging container can be easily performed, and a high-class feeling is exhibited. (2) The tray body can be reliably prevented from accidentally falling out of the exterior frame body during use or handling. (3) After use, the tray body and the outer frame can be disassembled and discarded. (4) According to the second to fifth aspects of the present invention, in addition to the above effects, the outer frame can be folded along the folding line, so that the container of the outer frame can be reduced in size. Therefore, the space for carrying and storing can be reduced, and the volume for disposal can be reduced. (5) According to the seventh aspect of the invention, the cylindrical body can be reinforced and made strong.

[Brief description of the drawings]

FIG. 1 is a view showing an entire configuration of an embodiment of a packaging container of the present invention, wherein FIG. 1A is a perspective view of an outer frame, and FIG. 1B is a perspective view of a container body.

FIG. 2 is a perspective view showing a state where the container body of the packaging container is housed in an outer frame and assembled.

FIG. 3 is an explanatory view showing a portion of a folding line formed in a cylindrical body of the container body, wherein FIG. 3A is a plan view showing an expanded state, and FIG. 3B is a plan view showing a folded state. .

FIG. 4 is an enlarged cross-sectional view taken along line AA of FIG. 1 and illustrating an engagement groove formed in the cylindrical body of the same.

FIGS. 5A and 5B are explanatory views showing a process of forming the engaging groove, in which FIG. 5A is an explanatory view showing a plate material constituting the cylindrical body part, and FIG. FIG. 3C is an explanatory view showing a forming step, FIG. 3C is an explanatory view showing a plate member having a second groove formed thereon, and FIG. 4D is an explanatory view showing a step of forming a first groove on the plate member shown in FIG. FIG. 7E is an explanatory view showing a plate member on which an engagement groove is formed by the two steps.

FIG. 6 is an explanatory view showing a step of assembling the container by accommodating the container body in the outer frame body, wherein FIG. 6a is an explanatory view showing a step of accommodating the container body in the outer frame body, and FIG. Explanatory drawing which shows the state which assembled the container.

FIGS. 7A and 7B are explanatory views showing a state in which the outer casing body is folded flat, wherein FIG. 7A is a plan view showing the entirety, and FIG.

8A and 8B are explanatory views showing plate members constituting the same exterior frame body, wherein FIG. 8A is a diagram showing the entire plate material, and FIG.

FIG. 9 is an explanatory view showing a step of manufacturing the same exterior frame body using the same plate material.

FIG. 10 is an explanatory view showing a main part of another embodiment of the packaging container of the present invention.

FIG. 11 is a view showing the overall configuration of still another embodiment of the packaging container of the present invention, wherein FIG. 11A is a perspective view of an outer frame, and FIG. 11B is a perspective view of a container body.

12 is an explanatory view for explaining the exterior frame of the embodiment shown in FIG. 11, wherein FIG. 12A is a view showing the entire plate material constituting the exterior frame and FIG. Exploded plan view showing, in an enlarged manner, a portion of a fold line formed in the plate material, FIG.
FIG. 4 is a plan view showing a state where the above-mentioned plate material is bent along a folding line and bent, and FIG. 4 d is an explanatory view showing a state where the above-mentioned exterior frame body is folded.

FIG. 13 is a view showing the overall configuration of still another embodiment of the packaging container of the present invention, wherein FIG. 13A is a plan view of an outer frame, and FIG. 13B is a plan view of a container body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Container main body 2 ... Exterior frame body 11 ... Tray body 12 ... Flange part 13 ... Engagement hanging piece 21 ... Cylindrical body part 22 ... Engagement groove 22a ... First groove 22b ... Second groove 22e ... Opening 24 … Top wall

Claims (7)

[Claims] 1. A container body, comprising: a container body; and an outer frame formed to have a size and a shape corresponding to the container body and accommodating the container body, wherein the container body is made of plastic and accommodates contents. A tray body, a flange protruding substantially horizontally outward along the periphery of the upper end opening of the tray body, and an engagement hanging piece formed downward along the outer edge of the flange The exterior frame has a cylindrical body with upper and lower ends opened, and an engagement groove formed on the inner wall surface of the body along the vicinity of the upper end of the body, The engagement groove has a first groove opened inward of the body, and a second groove formed in communication with the first groove, and a top wall surface of the first groove is substantially The second groove is formed in a horizontal wall surface, and the second groove is formed so as to be tapered obliquely downward from an opening of the first groove. Constructed a suspended piece to engage input, characterized in that said suspended piece and configured to accommodate the container body by engaging entering into the second groove to the exterior frame, a packaging container. 2. The cylindrical body of the exterior frame body is formed by bending a rectangular plate inward along each folding line formed on the plate, and connecting both ends of the plate to form a polygon. 2. The packaging container according to claim 1, wherein each of the fold lines is constituted by two V-shaped cut grooves formed in a predetermined portion of the plate material in parallel in a width direction of the plate material. 3. The packaging container according to claim 2, wherein the cylindrical body of the outer frame is formed in a substantially square shape. 4. The packaging container according to claim 2, wherein the cylindrical body of the outer frame is formed in an even polygon other than a quadrangle. 5. The tubular body of the exterior frame body is formed by bending a rectangular plate material with an inward curve along each folding line formed on the plate material, and connecting both ends of the plate material. It is formed in a substantially rounded square shape, and each of the fold lines is constituted by a plurality of cut grooves formed in a predetermined portion of the plate material in parallel at a predetermined interval in a width direction of the plate material. The packaging container according to claim 1, characterized in that: 6. The cylindrical body of the exterior frame body is formed by curving a rectangular plate material into a circular shape and connecting both ends of the plate material to form a circular shape. The packaging container as described. 7. The packaging container according to claim 1, wherein a plastic film is laminated on the outer surface of the cylindrical body of the outer frame.