JPH09124079A - Food package container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate and ensure the joining and separation of a partition film and meet various purposes, by forming a flange, which horizontally extends out, at the peripheral edge of the opening of the lower side of a lid body, and by joining the partition film to the flange, thereby closing the opening of the lid body. SOLUTION: In a food package container comprising a cylindrical container main body 12 having a bottom, a cylindrical lid body 13 having a lid which is held on the container main body 12 so that the opening of its upper side can be opened and closed, and a partition film 14 which closes the opening of the lower side of the lid body 13, an inside flange 16a which horizontally extends out is formed at the peripheral edge of the opening of the lower side of the lid body 13. And the partition film 14 is joined and fixed to the inside flange 16a to close the opening of the lid body 13, and a tab 17 is so formed as to project from part of the periphery of the partition film 14. Thus, the lid body and partition film can be easily and securely joined and fixed by being fused and bonded by the application of heat, or by other method, and also the lid body can be used both singly and in the state of being engaged with the container main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container in which the inside of a container body and the inside of a lid are separated and which can hold food.

[0002]

2. Description of the Related Art In recent years, various types of bento have been increasing. For example, in bonito bowls and the like, it is often sold at stores by heating with a microwave oven. In addition, consumers have come to demand tasty foods with minimal effort when eating. From such a background, a container capable of separately storing the ingredients and the rice has been desired.

As a food packaging container satisfying such requirements, there has been known one having a structure in which an inner plate is placed on a flange portion of a container body and a lid is fitted and locked on the upper portion thereof. However, in the container of this structure, in order to manufacture the container body, the inner plate, and the lid, it is necessary to manufacture different molds, and there is a problem that the manufacturing cost of the food packaging container rises. .

In order to solve this problem, for example, a food packaging container described in Japanese Utility Model Laid-Open No. 58-130962 has been proposed. In this conventional configuration, as shown in FIGS. 6 and 7, the lid 32 is fitted onto the container body 31. A multi-layered sheet 33 is stretched on the step portion 32a inside the lid 32. The lower surface opening of the lid 32 is closed so that food can be stored inside the lid 32.

[0005]

However, in the food packaging container described in the above publication, the container body 31 and the lid 32 are provided.
The sheet 33 interposed between the container body 31 and the lid 3
Sealed on both 2 and 3 of its seat
An easily peelable layer is formed in 3. Therefore, the structure of the sheet 33 is complicated, and the sealing work of the sheet 33 is troublesome. Therefore, there is a problem that the manufacturing cost of the food packaging container increases.

Further, since the edge of the sheet 33 is located inside the lid 32, it is difficult to peel off when opening the sheet 33, which is inconvenient. In addition, the size of the sheet 33 is larger than the inner diameter of the step portion 32a of the lid 32, or the lid 32 is used in a food packaging line.
If the mounting position of the sheet 33 with respect to the sheet shifts, the seal between the lid 32 and the sheet 33 may become uncertain. When such a sealing failure occurs, there are inconveniences such as the food in the container leaking out and the sheet 33 being inadvertently peeled off.

In addition, this food packaging container has a sheet 33.
Therefore, the container main body 31 and the lid 32 are integrally used. Therefore, there is a problem that there is no degree of freedom in the usage form, it is difficult to deal with various uses, and usability is poor.

The present invention has been made to solve the above problems, and the purpose thereof is to easily and surely bond a lid and a partition film that closes an opening on the lower surface thereof. It is an object of the present invention to provide a food packaging container which can be manufactured at low cost and can be easily peeled off from a partition film and can be used for various purposes.

[0009]

In order to achieve the above-mentioned object, in the invention described in claim 1, a flange is provided at the peripheral edge of the lower surface opening of the lid body so as to horizontally project outward, and the flange is attached to the flange. Join the partition film to close the opening of the lid,
The lid can be used alone or in a state of being fitted with the container body.

According to a second aspect of the present invention, in the food packaging container according to the first aspect, the fitting portion of the container body is provided with a horizontal step portion and a vertical step portion adjacent to the upper opening.
The lid body is provided with a bent portion adjacent to the flange in a shape substantially corresponding to the fitting portion, and the lid body is formed to fit inside the fitting portion of the container body. A gap is provided between the vertical step portion and the bent portion in a state where the main body and the lid are fitted together.

According to a third aspect of the present invention, in the food packaging container according to the first or second aspect, a grip portion is formed on a part of the outer periphery of the partition film so as to project outward from the film. is there.

Therefore, in the food packaging container according to the first aspect, a flange that horizontally extends outward is formed at the peripheral edge of the lower surface opening of the lid. Therefore, in a food packaging line, the interior of the lid is filled with food with the opening of the lid facing upwards, the partition film is placed on the flange of the lid, and the lid is attached by, for example, heat fusion. The partition film can be easily and reliably bonded and fixed.

Further, the outer peripheral edge of the partition film does not interfere with the flange of the lid or the like. Therefore, it is possible to give the partition film a degree of freedom, and it is possible to reliably perform the joining even if the mounting position of the partition film with respect to the lid body is slightly displaced. That is, the joint structure between the lid and the partition film can be simplified, and the joining work can be performed easily and reliably, and the food packaging container can be manufactured at low cost.

Further, the outer peripheral edge of the partition film is extended to the outside of the lid so that the partition film can be easily peeled off when the container is opened. Moreover, the lid body having the opening on the lower surface closed with the partition film can be used as a food packaging container, either alone or in a state of being fitted with the container body. Therefore, it is possible to provide a plurality of food packaging containers having different shapes without forming a new mold. In other words, this food packaging container can be used for various applications by changing the usage pattern without causing a rise in manufacturing cost.

According to the food packaging container of the second aspect, in addition to the invention of the first aspect, the lid has a bent portion adjacent to the flange and substantially corresponding to the fitting portion of the container body. Is provided. The flange and the bent portion are elastically deformable with respect to the side wall of the lid. Here, when fitting the lid to the upper surface of the container body,
The tip side of the bent portion of the lid body is slightly bent toward the inside of the lid body. Then, a gap is formed between the vertical step portion of the container body and the bent portion of the lid body. For this reason, even when the peripheral edge of the partition film protrudes from the outer peripheral edge of the flange of the lid and is joined, the protruding peripheral edge is accommodated in the gap when the container body and the lid are fitted together. It Then, the container body and the lid are securely fitted to each other without the protruding portion of the partition film interfering.

In the food packaging container according to a third aspect of the present invention, in addition to the invention according to the first or second aspect, a gripping portion is formed on a part of the outer periphery of the partition film so as to project toward the outside of the film. There is. Therefore, when opening the container,
The gripping portion can be used as a trigger for peeling off the partition film, and the partition film can be peeled off more easily.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a food packaging container 11 includes a container body 12 having a bottomed cylindrical shape, a lidded cylindrical lid body 13 that is openably and closably held at an upper opening of the container body 12, and a lid body thereof. And a partition film 14 that closes the opening on the lower surface of 13.

As shown in FIG. 3, the container body 12 is
For example, it is formed of a synthetic resin such as polypropylene. A flange portion 15 is provided on the outer periphery of the upper end of the container body 12.
Are formed. The flange portion 15 is formed with a horizontal step portion 15a and a vertical step portion 15b on the inner peripheral side, and a flange 15c that horizontally extends outward from the upper end thereof. Further, a folded portion 15d is formed downward on the outer peripheral edge of the flange 15c.

As shown in FIG. 4, the lid 13 is made of synthetic resin such as polypropylene.
A flange portion 16 is formed on the outer periphery of the lower end of the lid body 13. On the inner peripheral side of the flange portion 16, an inner flange 16a is formed as a flange that horizontally extends outward at the peripheral edge of the lower surface opening of the lid. A bent portion 16b is formed upward on the outer peripheral edge of the inner flange 16a. The flange 16a and the bent portion 16b are elastically deformable with respect to the side wall 13a of the lid 13. Further, an outer flange 16c is formed outward at the upper end of the bent portion 16b.

As shown in FIG. 5, the partition film 1
Reference numeral 4 is a film containing a layer of heat-sealing synthetic resin such as low density polyethylene, ethylene-vinyl acetate copolymer and ionomer on the surface thereof. The partition film 14 is bonded and fixed to the inner flange 16a of the lid 13 by heat fusion or the like so as to close the opening of the lid 13 near the outer peripheral edge thereof.
A part of the outer periphery of the partition film 14 has the film 1
A grip 17 is formed so as to project outward from the position 4.
The grip portion 17 has an inner flange 16 when the partition film 14 is joined to the inner flange 16a.
It is in a state of being extended outward from the outer peripheral end of a.

As shown in FIGS. 1 and 2, the outer peripheral surface 19 of the flange portion 16 of the lid 13 has a container body 12
It has a shape substantially corresponding to the inner peripheral surface 18 of the flange portion 15.

Now, in order to fit the lid body 13 to which the partition film 14 is joined to the upper surface of the container body 12, the lid body 13 is placed on the upper opening of the container body 12 and both flange portions 15, 16 are provided.
Place them so that they correspond. Here, when the lid body 13 is lightly pressed in the direction of the container body 12, both the flange portions 15, with the tip end side of the bent portion 16b of the lid body 13 being slightly bent toward the side wall 13a side of the lid body 13, 16 is fitted. Then, the lid 13 is held in a state of being fitted inside the container body 12. In addition, in order to facilitate understanding, in FIG. 2, the bent portion 16b is drawn as if it is bent more than it actually is. Then, a gap 23 is formed between the vertical step portion 15b of the container body 12 and the bent portion 16b of the lid body 13. In this gap 23, the lid 1
The peripheral edge of the partition film 14 such as the grip 17 protruding outside the outer peripheral end of the inner flange 16a of No. 3 is accommodated.

Next, a method of using the food packaging container 11 will be described. First, as shown in FIG. 5, the first food product 20 is filled inside the lid body 13 with the lower surface opening of the lid body 13 facing upward. And the partition film 14
Is placed on the inner flange 16a, and is joined and fixed by, for example, heat fusion. Next, as shown in FIGS. 1 and 2, the lid body 13 containing the first food product 20 is turned upside down, and the container body 1 containing the second food product 21.
2 and the flange portion 1
Fit 5 and 16 together.

To open the food packaging container 11, first, the lid 13 is removed from the container body 12. Then, as shown in FIG. 5, the lid 13 is turned upside down and placed with the partition film 14 side up. Here, when the grip 17 of the partition film 14 is lifted upward, the partition film 14 can be easily peeled off from the lid 13.

As described above, this embodiment has the following advantages. (1) An inner flange 15a that horizontally extends outward is formed on the peripheral edge of the lower surface opening of the lid 13. For this reason,
In a food packaging line, work such as joining and fixing between the lid 13 and the partition film 14, for example, heat fusion can be performed easily and reliably. Also, the partition film 14
The outer peripheral edge and the flange portion 16 and the like of the lid 13 do not interfere with each other, and the partition film 14 can have a degree of freedom. Further, even if the mounting position of the partition film 14 with respect to the lid 13 is slightly displaced, the joining can be reliably performed. Therefore, the joint structure between the lid 13 and the partition film 14 can be simplified, and the joining work can be performed easily and surely, and the food packaging container 11 can be manufactured at low cost.

(2) A partition film 14 for partitioning the opening on the lower surface
The lid body 13 closed by means of the lid body 13 can be used as a food packaging container either alone or in a state of being fitted with the container body 12. Therefore, it is possible to provide a plurality of food packaging containers having different shapes without forming a new mold. Therefore, the food packaging container 11 can be used for various purposes by changing the usage pattern without causing a rise in manufacturing cost.

(3) The vertical step portion 15b of the container body 11 and the lid body 1 when the container body 12 and the lid body 13 are fitted together.
A gap 23 is formed between the third bent portion 16b and the bent portion 16b.
Therefore, even if the peripheral edge of the partition film 14 is in a state of being bonded to the outer peripheral edge of the inner flange 16 a of the lid body 13 and joined, the protruding peripheral edge is accommodated in the gap 23. Therefore, the container body 12 and the lid 13 are securely fitted to each other without the protruding portion of the partition film 14 being an obstacle.

(4) A grip portion 17 is formed so as to project on a part of the outer periphery of the partition film 14. Therefore, the grip 17 can be used as a trigger for peeling off the partition film 14, and the partition film 14 can be peeled off easily.

(5) The second food product 21 in the container body 12
And the first food product 20 in the lid 13 are completely separated by the partition film 14. Therefore, the first food 20 and the second food 21 are mixed with each other, and both foods 2
Almost no deterioration of 0 or 21 and no change in flavor or texture.

The present invention can be embodied even if it is modified as follows. (A) As shown by an imaginary line in FIG. 5, a partition wall 25 is formed inside the lid body 13 to partition the inside of the lid body 13 into a plurality of chambers. The tip of the partition wall 25 should be flat, and the partition film 14 should be bonded and fixed to the tip.

According to this structure, different foods can be contained in the plurality of chambers, and the foods can be prevented from being mixed with each other. (B) Forming a partition wall inside the container body 12 to partition the inside of the container body 12 into a plurality of chambers.

Even with this structure, different foods can be included in the plurality of chambers. (C) Change the material of the container body 12 and the lid 13 to a synthetic resin other than polypropylene, such as polystyrene.

(D) The partition film 14 is composed of, for example, a multilayer film containing an aluminum foil as an intermediate layer. According to this structure, the electronic cooker can burn the food contained in the lid 13.

(E) The lid 13 and the film 14 are joined by a method other than heat fusion, for example, adhesion by an easily peelable adhesive or the like. (F) At least one of the container body 12 and the lid 13 should be made of a material that does not easily transmit electromagnetic waves.

According to this structure, it is possible to simultaneously electronically cook foods having different cooking times in the electronic cooking device in one food packaging container. Next, a technical idea grasped by the above embodiment will be described.

(1) The inside of at least one of the container body and the lid is partitioned so as to have a plurality of chambers.
3. The food packaging container according to any one of 3. When configured in this way, the interior of the container body and lid is divided into multiple chambers, so different foods can be included in each chamber, and furthermore, the mixing of these foods must be prevented. You can Therefore, more foods can be stored while maintaining their respective flavors and textures.

[0037]

Since the present invention is constructed as described above, it has the following effects. According to the invention described in claim 1, the joint structure between the lid and the partition film can be simplified, and the joining work can be performed easily and surely, and the food packaging container can be inexpensive. It can be manufactured. Further, the partition film can be easily peeled off when the container is opened. Moreover, the lid body whose lower surface opening is closed by the partition film can be used as a food packaging container, either alone or in a state of being fitted with the container body. For this reason, it is possible to deal with various applications by changing the usage pattern without starting a new mold.

According to the second aspect of the present invention, even when the peripheral edge of the partition film protrudes from the outer peripheral edge of the flange of the lid and is joined, the container body and the lid are fitted together. The protruding peripheral edge is accommodated in the gap. Therefore, the protruding portion of the partition film does not get in the way, and the container body and the lid are securely fitted together.

According to the third aspect of the invention, the partition film can be peeled off more easily.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a food packaging container according to an embodiment.

FIG. 2 is a partially enlarged cross-sectional view showing a fitting portion between the container body and the lid body of FIG.

FIG. 3 is a partially cutaway front view showing the container body of FIG.

FIG. 4 is a partially cutaway front view showing the lid body of FIG. 1.

FIG. 5 is a partially cutaway front view showing a state in which a lower surface opening of a lid body to which a partition film is joined is faced up.

FIG. 6 is a cross-sectional view showing a conventional food packaging container.

FIG. 7 is an enlarged cross-sectional view showing a main part of FIG.

[Explanation of symbols]

11 ... Food packaging container, 12 ... Container body, 13 ... Lid body, 1
4 ... Partition film, 15a ... Horizontal step portion, 15b ... Vertical step portion, 16a ... Inner flange as a flange that horizontally projects outward to the peripheral edge of the lower surface opening of the lid body, 16b ... Bent portion, 17 ... Grip Part, 23 ... gap.

Claims (3)

[Claims] 1. A food packaging container having a container body and a lid body releasably fitted into a fitting portion around an upper surface opening portion of the container body, wherein a peripheral edge of the lower surface opening portion of the lid body is provided. A food package that is provided with a flange that horizontally extends outward, a partition film is joined to the flange to close the opening of the lid, and the lid can be used alone or in a state of being fitted with the container body. container. 2. The fitting portion of the container body has a horizontal step portion and a vertical step portion adjacent to the upper surface opening, and the lid body has a shape corresponding to the fitting portion adjacent to the flange. A bent portion is provided on the container body, the lid body is formed to fit the fitting portion of the container body, and the vertical step portion and the bent portion are formed in a state where the container body and the lid body are fitted together. The food packaging container according to claim 1, wherein a gap is provided between the food packaging container and the food packaging container. 3. The food packaging container according to claim 1, wherein a gripping portion is formed on a part of the outer periphery of the partition film so as to project outward from the film.