Fastening structure of airtight container

Abstract

Disclosed herein is an airtight container. The fastening structure comprises a body with a rim integrally formed at a periphery of an opened upper end of the body, a lid with a channel portion formed at a periphery of the lid to be fitted into the body and maintain an airtight seal between the body and the lid, one or more foldable fastening ribs, each being protruded from the lid in a lateral direction as an integral part of the lid and having a fastening slit perforated through the fastening rib in a lengthwise direction, and one or more fastening pieces corresponding to the fastening ribs, each being protruded from the body in the lateral direction and inserted onto the corresponding fastening slit of the fastening rib, wherein each of the fastening ribs is formed with one or more reinforcing rib-receiving portions of a semi-circular shape, each of the reinforcing rib-receiving portions opened toward a central lower portion of the fastening slit in a lengthwise direction through the fastening rib, and wherein each of the fastening pieces is a protruded piece protruded in a lateral direction at a position corresponding to the fastening slit of the fastening rib, and is integrally formed with a reinforcing rib being a thick portion downwardly protruded from the fastening piece while being extended in a transverse direction of the fastening piece.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a fastening structure of an airtight container, and more particularly to an enhanced fastening structure, which can be widely applicable to domestic or industrial airtight containers. [0003] 2. Description of the Related Art [0004] Due to recent development of catering services and diversification of foodstuffs, there has been widely used an airtight container, which can contain beverages or keep foodstuffs in airtight and watertight states, while being in a refrigerated state, for maintaining the foods for a long time. [0005] That is, as the foods to be maintained for a long time are purchased in a great quantity due to an increasing ratio of instant foods to natural foods consumed in today's family life and to an appearance of large discount stores, requirements for maintaining the foods for a long time have increased, and a typical airtight container is a product which has been wi...

AI Technical Summary

Benefits of technology

[0010] The present invention has been made to solve the above problems, and it is an object of the present invention to provide a fastening structure for an airtight container, which has a reinforcing structure enabling an airtight seal to be always maintained between a lid and a body fastened to each other with a packing material provided therebetween, thereby realizing an airtight structure, and which has a fastening piece and a fastening rib enhanced in their shapes, thereby preventing the hand or rubber gloves for washing dishes from being hurt or torn.

Problems solved by technology

However, prolonged use of the container causes fatigue to the packing material, which distorts or deforms the fastening pieces, lowering the fastening force, thereby deteriorating a function as an airtight container.

Furthermore, dimensional errors in the fastening pieces and the fastening ribs make it difficult to fasten the body and the lid to each other, and when a fastening slit is formed with a play, a user must pay attention to fasten the body and the lid at an exact fastening position thereof.

Furthermore, since the fastening piece is generally a rectangular-shaped protrusion integrally formed with the body in the lateral direction, anyone who is washing dishes may get easily hurt in the hand at an angled portion of the rectangular fastening pieces, otherwise rubber gloves for washing dishes may be frequently torn, leading to avoiding use of the airtight container.

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