Patent ID: 8375645

Claim:
A sliding door device capable of making a surface of a sliding door in a closed position in plane with a wall surface and arranging the sliding door in an open position on a back side or a front side of the wall surface and in parallel with the wall surface, the sliding door device comprising: a first pin body provided on a floor surface; a guide member provided on the sliding door and having a guide groove in which the first pin body fits when the sliding door is in the closed position; and a second pin body that is provided on the floor surface and can be fit in a sliding door groove formed at a bottom part of the sliding door, wherein, when the sliding door in the closed position is slid in an opening direction and toward the back side or front 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 sliding door is further slid in the opening direction, the second pin body gets in the sliding door groove of the sliding door and the sliding door slides along the second pin body while the second pin body is fit in the sliding door groove of the sliding door, the first pin body does not jut in an opening when seen from a front side of the sliding door, and at least a part of the guide member protrudes in a width direction of the sliding door when seen from the front side of the sliding door.