DOOR DEVICE

To provide a door device whose operability in removal of the door body and assemblability upon re-installation of the door body in emergency are made easier and simpler while suppressing easy operation in ordinary use.SOLUTION: Included are: a support structure with an opening, and a door 5 suspended from the support structure so as to be able to open and close the opening. The door 5 has a door body 20 having a housing section 21 opening upward, a door support body 30 having a stationary section 31 housed in the housing section 21, and a support section 32 located above the stationary section 31 and supported by a support structure. The door 5 has a pin insertion hole opened on a surface 20s of the door body 20 facing the opening direction of the opening in the closed state of the opening and communicating with the inside of the housing part 21. The door 5 has a lock pin 50 which is configured to be movable into the housing section 21, in a retractable manner, through the pin insertion hole, and whose lower end is engaged with an engagement part 37 formed in the stationary section 31 in the housing section 21.SELECTED DRAWING: Figure 4 【課題】通常使用時に安易に操作されることを抑制しつつ、非常時において扉本体の取り外しに係る操作性や扉本体を再び取り付ける際の組付け性をより容易かつ簡素化した扉装置を提供する。【解決手段】開口部を有する支持構造体と、開口部を開閉可能に支持構造体に吊り下げられた扉５と、を備え、扉５は、上方に開口する収容部２１を有する扉本体２０と、収容部２１に収容される固定部３１及び固定部３１の上部に位置して支持構造体に支持される支持部３２を有する扉支持体３０と、を備え、扉５には、扉本体２０のうち、開口部を閉塞した状態において開口部の開口方向を向く表面２０ｓ上で開口するとともに、収容部２１内に連通するピン挿入孔が形成され、扉５は、ピン挿入孔を通じて収容部２１内に進退可能に構成されるとともに、収容部２１内において固定部３１に形成された係合部３７に下端が係合されるロックピン５０を有する。【選択図】図４