Stackable artcle-packaging container

Abstract

A stackable article-packaging container includes an accommodating unit including a receptacle bottom plate and a plurality of slant sidewalls extending from edges of the receptacle bottom plate so as to define a receptacle space, a lid unit including a cover plate and a plurality of slant sidewalls extending from edges of the cover plate so as to define a receptacle space, and a locking unit including a locking bottom plate and a plurality of slant sidewalls extending from edges of the locking bottom plate so as to define a receptacle space. The accommodating unit and the locking unit are disposed at opposite side of the lid unit.

Description

TECHNICAL FIELD [0001]The present invention relates to a stackable article-packaging container and, more particularly, to a container which is stackable when articles are not accommodated therein and which is provided with a safe locking unit for preventing the container from being unintentionally opened during transportation or storage. Furthermore, the present invention pertains to a container which is stackable and is provided with a safe locking unit and which is capable of safely packaging fragile articles such as eggs or the like piece by piece and is capable of preventing the contents of articles from being leaked to the outside even when the articles are damaged.BACKGROUND, ART[0002]A pulp molding technique is known as a method for manufacturing a paper container which packages fragile articles such as eggs or the like piece by piece. In case of manufacturing an egg packaging container with the pulp molding technique, a lid can be one-piece molded with the container if the s...

AI Technical Summary

Benefits of technology

The present invention is a stackable article-packaging container with an accommodating unit, a lid unit, and a locking unit. The accommodating unit is contained within the locking unit to prevent the lid unit from being opened during storage or transportation. The lid unit can be easily opened by rupturing a rupture portion. The container has a corrugated insertion unit to prevent external impact from affecting the accommodated articles. The container is made of paper sheet and is environmentally-friendly, energy-saving, and can be directly printed on. The container prevents liquid from leaking even if the article it contains breaks. The container is simple in structure, suitable for mass production, and is an affordable article-packaging solution.

Problems solved by technology

However, if the size of the container is large, it is difficult to one-piece mold a lid with the container.

For example, in case of a large container for accommodating 30 pieces of eggs, it is difficult to one-piece mold a lid with the container.

For that reason, a separate lid made of a synthetic resin is used This is not environmentally friendly.

However, it is difficult to directly print an indication such as a trademark or a manufacturer of articles on the surface of the lid.

This may lead to an increased manufacturing cost.

Moreover, when manufacturing an article-packaging container through the use of the pulp molding technique, a drying process for drying a molded container is needed and a great deal of energy is consumed in the drying process.

However, the container shown in FIG. 9 of U.S. Pat. No. 4,462,537 is not stackable because the sidewalls of the container interfere with each other.

If the sidewalls are partially removed for a stacking purpose, the strength of the container becomes weak.

In case where the container is not stackable, a large amount of cost is required in storing and transporting the container.

Moreover, the container cannot be supplied in a stacked state to an egg packaging apparatus installed in an existing poultry farm.

This makes it difficult to utilize the existing egg packaging apparatus.

This poses a problem in that, when an impact is applied to the container during storage or transportation, it is impossible to sufficiently protect the articles accommodated within the container.

This also poses a problem in that it is impossible to sufficiently protect the accommodated articles from the impact transferred through the bottom plate.

Moreover, a process for folding the insert of a complex structure having a large number of fold lines is hardly automated through the use of a machine.

A process for bonding the folded insert to the bottom part is also hardly automated through the use of a machine.

In other words, there is a problem in that the container is structurally complex and is unsuitable for mass production, which in turn increases the price of the container.

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