JPH0940052A - Packaging container for egg - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container for eggs, in which strong elastic force in the opening direction is moderated. SOLUTION: A synthetic resin sheet-made packaging container for eggs having a plurality of molded recesses 11, 21 divided by partitions so as to form holding spaces for eggs in the state that the body 1 and the cover 2 freely opened/closed are connected at the flexible joint 3 and closed, is provided with continual scores 4 moderating the elastic force of the joint 3 at the joint 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an egg packaging in which a thin synthetic resin sheet is manufactured by vacuum molding or blow molding, and a body part for inserting eggs and a lid part are integrally connected through a flexible connecting part. Regarding the container.

[0002]

2. Description of the Related Art A conventional egg packaging container, as shown in the perspective view of FIG. 4, comprises a body portion 1, a lid portion 2 and a connecting portion 3 which connects these two portions flexibly. A resin sheet is vacuum-molded or blow-molded to be integrally molded, and the body portion 1 and the lid portion 2 are provided with a plurality of concave portions 11 and 21 and a flange portion 5 into which the eggs separated by partition walls are put. .

After inserting eggs into the respective recesses 11 of the body part 1, the lid part 2 is bent through the connecting part 3 and the flange part 5 facing the connecting part 3 is stapled or heat-sealed to seal it. are doing.

[0004]

A synthetic resin sheet made of vinyl chloride, polystyrene, polyethylene terephthalate (PET) or the like is used in such an egg packaging container. Since vinyl chloride produces toxic gas when incinerated, PET sheets are often used. Since PET is tougher than other sheets having the same thickness, it is difficult to bend at the flange portion 5, and even if it is bent, strong elastic force in the opening direction acts, and depending on the sealing method, for example, adhesiveness When it was sealed with tape, it sometimes opened carelessly.

Therefore, the present invention was conceived in order to obtain an egg packaging container in which the elasticity in such a strong opening direction is relaxed.

[0006]

According to the egg packaging container of the present invention, an openable and closable body portion and a lid portion are connected by a foldable connecting portion, and an egg holding space is formed in a closed state. In an egg packaging container of a synthetic resin sheet in which a plurality of recesses partitioned by partition walls are molded, a connecting portion is provided with intermittent cuts for relaxing the elasticity of the connecting portion.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIG. 1, a thin synthetic resin sheet is vacuum-formed or blow-molded to form a foldable connecting portion 3 so as to hold a plurality of eggs in a state of being separated from each other. The body portion 1 and the lid portion 2 are integrally molded with each other, and the body portion 1 and the lid portion 2 are provided with recesses 11 and 21 partitioned by a partition wall so as to form an egg holding space in a closed state. Is provided.

A flange portion 5 is formed around the body portion 1 and the lid portion 2, and the flange portion 5 is used for sealing by fixing with a stapler or heat fusion.

In the egg packaging container of the present invention, as shown in an enlarged view in FIG. 2, the foldable connecting portion 3 is formed with a cut 4 which is intermittent in the longitudinal direction thereof. The intermittent cut 4 is composed of a cut portion 41 having a length a and a non-cut portion 42 having a length b, and the ratio R (= b / a + b) occupied by the non-cut portion 42 has a desired elasticity. All you have to do is decide to obtain it.

If the ratio R is reduced in the range where the required breaking strength is allowed, the elasticity in the opening direction can be reduced and the handling is easy.

The cuts 4 formed in the connecting portion 3 are not limited to the cuts shown in FIG. 2, but various types such as the intermittent cuts shown in FIGS. 3A to 3C and the zigzag cuts shown in FIG. 3D. Even with a break in the shape of, the same effect can be obtained.

[0012]

As is clear from the description based on the above embodiments, according to the egg packaging container of the present invention, even when the egg packaging container is made of a strong sheet, the lid is opened when sealing. Since this elasticity can be alleviated, it is easy to handle and it is possible to prevent accidental opening accidents during transportation or sales.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an egg packaging container of the present invention,

FIG. 2 is a plan view showing a main part of an embodiment of an egg packaging container according to the present invention,

FIG. 3 is a plan view showing another main part in the embodiment of the egg packaging container of the present invention,

FIG. 4 is a perspective view showing an example of a conventional egg packaging container.

[Explanation of symbols]

 1 Body part 2 Lid part 3 Bendable connection part 4 Cut line 5 Flange part 11, 21 Recessed part

Claims (1)

[Claims] 1. A synthetic molding in which a body part that can be opened and closed and a lid part are connected by a foldable connection part, and a plurality of recesses that are partitioned by partition walls to form an egg holding space in a closed state are molded. In a resin sheet egg packaging container,
An egg packaging container, characterized in that the connecting portion is provided with intermittent cuts for relaxing the elasticity of the connecting portion.