JP2001146287A - Egg packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container exclusive for eggs which is repeatedly recyclable, returnable, cleanable, sanitary and excellent in protectiveness. SOLUTION: The packaging container is formed of a synthetic resin high in rigidity, and provided with recessed portions 12 and 22 for storing a plurality of eggs, and comprises a container body 1 to package and hold the eggs when a lid is closed, and a lid body 12, and egg supporting pieces 13 and 24 are erected from a base bottom part in the recessed portions 12 and 22 for storing eggs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container which can be used repeatedly for transportation, transportation and storage of eggs.

[0002]

2. Description of the Related Art In general, as a container for packaging eggs used for transporting and storing eggs and also displayed at retail stores as it is, a transparent thin synthetic resin material formed into a sheet is generally used. The container holds the eggs so as to be wrapped in the concave portion on the container body side and the concave portion on the lid side, and the vertical rigidity is increased by the column-shaped ribs provided between the adjacent concave portions, so that multi-stage stacking is possible. Is formed.

[0003] Such a packaging container for eggs has advantages such as low raw material costs, low cost production, and light weight.
Therefore, after being used as a transport container before being transferred to a refrigerator in each household by a consumer, it is customary to discard without being reused.

[0004]

However, the conventional egg packaging container, which is a thin sheet molded product, is inferior in shape retention and difficult to carry, and is susceptible to external impact, so that the packaged egg is damaged. Further, there are drawbacks such that the opening can be easily opened and the opening stopped by a stapler or the like is difficult to open. Also,
In view of the recent escalation of the problem of garbage and resource protection, the development of the Containers and Packaging Recycling Law, etc., it is difficult to adequately deal with these problems with containers that are poor in strength and unsuitable for reuse.

[0005] On the other hand, in an egg sales route to a specific consumer such as joint purchase, there is an example in which a paper packaging container molded using recycled pulp is used. This packaging container has the advantage of contributing to resource conservation and environmental protection in that it uses recycled materials and is reused multiple times.However, it is fragile in material, and can be broken or broken. In many cases, and the egg cannot be sufficiently protected from external impact. Experts have pointed out that this type of packaging, which can be reused but cannot be washed, poses a problem in terms of hygiene. For example, it should be reused at most once for salmonella control. is there.

Accordingly, the present inventors have studied a returnable type that can be repeatedly reused, is washable, is sanitary, and has high protection for eggs.

[0007]

In order to solve the above-mentioned problems, a chicken egg packaging container according to the present invention is provided with a plurality of egg accommodating recesses while using a highly rigid synthetic resin material. At the time of the lid, a container was composed of a container body for wrapping and holding the eggs and a lid, and the egg support pieces were erected at the bases in the above-mentioned respective eggs accommodating recesses. It is composed of a container body and a lid, and is similar to the above-mentioned conventional egg packaging container in that a plurality of egg-containing recesses are formed in both, but the both are made of a high-rigidity synthetic resin, thereby being repeated. It was a returnable container that could withstand reuse.

[0008] However, if the packaging container is simply formed using a highly rigid synthetic resin, a cushioning material such as urethane is separately fixed inside the container. There is a disadvantage that the eggs are transmitted directly to the stored eggs and the eggs are easily damaged. On the other hand, if the cushion material is fixed inside the container, the cost is increased.
Therefore, the egg packaging container according to the present invention can be integrally formed by injection molding using a rigid synthetic resin material such as polypropylene (PP) or polyethylene terephthalate (PET), and is closed. The egg support pieces standing on the bases of the container body and the lid inside the egg storage recesses are formed so as to hold the top and bottom of the eggs, so that the egg support pieces function as a cushioning material. The biggest feature is that it can absorb the impact from the outside and prevent damage to the stored eggs.

Here, examples of the egg supporting piece standing on the base portion in the egg receiving recess include a thin fin-shaped one and a brush-shaped one. These egg support pieces can be separately formed and bonded to each other. However, in order to take advantage of the injection molding, it is preferable to use fin-shaped pieces integrally formed from the base. Recycled PP, recycled PET, or the like may be used as the synthetic resin material.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the egg packaging container according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing an open state of the egg packaging container, and FIG. 2 is a plan view showing a closed state of the container.

In the example shown in these figures, the container body 1
And the lid 2 are integrally formed so as to be continuous via the hinge 3, and are closed by folding the hinge 3 in two. Two locking claws 21 are provided on the edge of the lid 2.
Are provided upright at intervals, and cuts 11 are formed in the edge portion of the container body 1 corresponding to the locking claws 21. At the time of closing the cover shown in FIG. 2, the locking claws 21 on the lid body 2 engage with the cuts 11 on the container body 1 side, thereby preventing the lid from being opened carelessly. By simply releasing the engagement between the cut 21 and the notch 11, there is an advantage that the opening and the removal of the chicken egg can be easily performed.

Each of the container body 1 and the lid 2 has a plurality of egg storage recesses 12 and 22. In the example shown,
Each of the ten egg storage recesses 12 and 22 is formed. However, the present invention is not limited to this example, and one to an arbitrary number of egg storage recesses 12 and 22 can be freely formed.

The egg packaging container according to the present invention is formed of a transparent or translucent material so that the state of the egg can be easily checked from the outside, similarly to a conventional sheet-formed container. Although it is desirable, if a confirmation window is opened in the egg storage recesses 12 and 22 separately, it may be formed of an opaque material.

FIG. 3 is a cross-sectional view of the egg packaging container shown in FIG.
-It is an X-ray longitudinal cross-sectional view. As shown, the container body 1
The egg storage recess 22 on the lid 2 side compared to the egg storage recess 12 on the side
Has a large bottom area and is formed in a small body shape. This is because the eggs are accommodated so that the air chamber side of the eggs is located on the lid 2 side in accordance with the quality control method of storing the eggs with the air chamber side upward to maintain the freshness. By forming the outer shape of the egg housing recess 12 in the container body 1 and the outer shape of the egg housing recess 22 in the lid 2 different from each other, the container body 1 and the lid 2 are made of a colored opaque material. Even in the case where it is formed, it is possible to determine the vertical direction at a glance.

In the egg packaging container of the present embodiment, the egg supporting pieces 13, 24 erected at the bases in the egg receiving recesses 12, 22 of the container main body 1 and the lid 2 have a thin fin shape, From the base in each of the egg storage recesses 12 and 22, it is set up in a cylindrical shape divided into quarters. And each chicken egg support piece 1
The members 3 and 24 have flexibility as a result of being formed so that the wall thickness gradually decreases from the base to the tip.
Therefore, as shown in FIG. 4, along the outer shell of the accommodated egg E near the tips of the thin fin-shaped egg support pieces 13, 24, not "one point" but "multiple faces". As a result, the eggs are protected by dispersing external impacts. In addition, the egg support pieces 13 and 24, which are rich in elasticity, can fit the outer shell surface of the eggs even if the size of the eggs to be stored is slightly different, so that the volume of each of the egg storage recesses 12 and 22 is the maximum size. If it is formed in a size that can accommodate chicken eggs, it is possible to handle various sizes of eggs such as LL, L, and M with only one size egg packaging container. The egg support pieces 13, 24
May be further subdivided into 1/8 or the like in order to further increase flexibility.

On the upper surface of the lid 2, there is formed a deviation preventing rib 23 for stacking containers in multiple stages. That is, FIG.
As shown in the figure, for example, when A and B two egg packaging containers are stacked in two rows in the vertical direction,
Engages with the outer edge of the egg housing recess 12 on the container body 1 side of the container placed on the upper stage, thereby preventing the collapse of the load.

Furthermore, in the egg packaging container of the present embodiment, the outer shape of the egg storage recess 11 in the container body 1 is formed so as to fit between four adjacent egg storage recesses 21 in the lid 2. So-called stacking is also possible.
FIG. 6 shows a state in which a total of four egg containers A, B, C, and D are stacked.

When the egg packaging container is transported and stored in an empty container that does not contain the eggs, it is desirable to form the nesting package in order to reduce the occupied space. In the egg packaging container of the present example, nesting ribs 15 and 26 are formed at several places on the edges of each opening of the container body 1 and the lid 2, and when a plurality of the lids shown in FIG. As shown in FIGS. 7 and 8, as a result of the presence of the nesting ribs 15 and 26, the egg containing recesses 12 and the egg containing recesses 22 did not adhere to each other, so that thin fin-shaped egg supporting pieces 13 and 24 were stacked. Pressing at the bottom of the container is prevented and nesting egg support pieces 13, 24
Can prevent damage.

In the egg packaging container of the present embodiment, small holes 14 and 25 are formed at the bases of the container body 1 and the lid 2 in the egg receiving recesses 12 and 22, respectively. As described above, since the respective egg support pieces 13 and 24 are erected in a cylindrical shape divided into quarters, when the water washing is performed in the open state shown in FIG. , Water drops on each egg support piece 13,2
Since the water flows downward from the small holes 14 and 25 through the space 4, it is possible to prevent the washing water from accumulating in the container to cause unsanitary condition.

[0020]

According to the packaging container for eggs of the present invention, both the container body and the lid are made of synthetic resin having high rigidity. There is. In addition, since the whole can be washed with water, it is sanitary. In addition, since the eggs are highly protective, they can contribute to resource saving and environmental protection as returnable packaging containers that can be reused repeatedly.

[Brief description of the drawings]

FIG. 1 is a plan view showing an open state of a chicken egg packaging container according to the present invention.

FIG. 2 is a plan view showing a closed state of the chicken egg packaging container of FIG. 1;

FIG. 3 is a vertical sectional view taken along line XX of FIG. 2;

FIG. 4 is a longitudinal sectional view showing a state where eggs are stored in FIG. 3;

FIG. 5 is a side view showing a state in which the egg packaging containers are vertically stacked in two stages.

FIG. 6 is a side view showing a state in which four egg packaging containers are stacked.

FIG. 7 is a sectional view taken along line YY of the lid body in a nested state.

FIG. 8 is a sectional view taken along the line ZZ of the container body side in a nested state.

[Description of Signs] 1 Container main body 2 Lid 3 Hinge 11 Locking claw 12 Egg receiving recess 13 Chicken supporting piece 15, 26 Nesting rib 21 Notch 22 Chicken receiving recess 23 Slip stop rib 24 Chicken supporting piece

Claims (1)

[Claims] 1. A container made of a high-rigidity synthetic resin material, each of which has a plurality of egg storage recesses, and includes a container body and a lid which wrap and hold the eggs when the lid is closed. A packaging container for eggs, in which an egg supporting piece is erected at the base.