Patent attributes
A sliding door device has a first pin body provided, at a floor surface; a guide member provided at the door and having a guide groove in which the first pin body fits when the door is closed; and a second pin body that is provided on the floor surface and can be fit in a door groove formed at the door bottom. When the closed door slides in an opening direction and toward the back side of the wall surface, the guide member moves relatively along the first pin body while the first pin body is fit in the guide groove of the guide member. When the door slides further in the opening direction, the second pin body gets in the door groove of the door, and the door slides along the second pin body while the second pin body is fit in the sliding groove of the door.