Door device having a reduced action range

摘要

A door device for opening and closing an opening of a collecting case includes a door body for opening and closing the opening. A first hinge and a second hinge are disposed at one side of the door body at a predetermined distance from each other. A first guide rail is disposed at an interior wall of the collecting case for a predetermined length for guiding the door body to slide into and out from the collecting case by guiding the first hinge to move inwardly and outwardly with respect to the collecting case when the door is opened and closed; and a second guide rail is disposed at an interior wall of the collecting case for a predetermined length for guiding the second hinge to simultaneously rotate when the door body slides into and out from the collecting case.