Hinge device for storage cases and storage case having the same

Abstract

A hinge device for storage cases to hingedly connect a case body and a door. The hinge device includes a housing fixed to one of the case body and the door, first and second hinge shafts rotatably attached to opposite ends of the housing, respectively, such that the first and second hinge shafts are fixed to the other of the case body and the door, a cam driving unit disposed at the first hinge shaft in the housing, and a torsion spring having one end fixed to the second hinge shaft and the other end fixed in the housing such that the rotation resistance of the door is increased when the door is closed, and the torsion spring is returned to its original state when the door is opened.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of Korean Patent Application No. 10-2005-0040390, filed on May 16, 2005 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a hinge device for storage cases and a storage case having the same. More particularly, to a hinge device for storage cases that is capable of enabling a door to be smoothly closed while the structure of the hinge device is simplified, and a storage case having the same. [0004] 2. Description of the Related Art [0005] Generally, a conventional Kimchi storage case is a storage case constructed such that the top of a case body can be opened and closed. Specifically, a door is hingedly attached to the top of the case body such that the door can be opened and closed. [0006] The conventional Kimchi storage case includes a case body h...

AI Technical Summary

Benefits of technology

The present invention provides a hinge device for storage cases that allows for smoother closing of the case and simplifies the structure of the hinge device. The hinge device includes a housing, first and second hinge shafts, a cam driving unit, and a torsion spring. The cam driving unit includes a first cam, a moving member, and a compression spring. The hinge device also includes a fixing member, a rotation preventing pin, and a catching part. The first and second cams have valley-shaped and crest-shaped cam surfaces. The hinge device further includes a leakage preventing member and a shaft. The technical effects of the invention include improved smoothness in closing the case and simplification of the hinge device structure.

Problems solved by technology

Consequently, there are many components constituting the hinge device, and therefore, the manufacturing costs of the hinge device are increased.

In addition, the two hinge units are individually manufactured, and then the hinge units are mounted in the opposite sides of the housing, and therefore, the manufacturing process is complicated.

Furthermore, the door is heavy in comparison to the shock-absorbing function of the hinge device within a closing section, and therefore, an impact force is high when the door is closed.

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