When the kimchi refrigerator door is opened, this function allows the door to remain open at any point chosen by the user, thereby facilitating the removal of kimchi containers and their contents..

It minimizes the loss of cold air from the kimchi refrigerator.
When the kimchi refrigerator door is opened, the force (moment) tending to pull the door down balances with the force (moment) generated by the compression of the coil spring within the hinge, allowing the door to remain in the open position.