| 摘要 |
PROBLEM TO BE SOLVED: To secure perfect crime prevention associated with a door device having an entrance door etc. equipped with an auxiliary door for use in the carrying-in of an article.SOLUTION: A door body 1, through which a person can pass, is partially equipped with the auxiliary door 2 through which he/she cannot pass and which enables only the passage of the article. The auxiliary door 2 includes an outer door 22 which is provided on the outdoor side of the door body 1 and opened on the outdoor side, an inner door 23 which is provided on the indoor side of the door body 1 and opened on the indoor side, an intermediate door 24 which is provided between the outer and inner doors 22 and 23 of the door body 1, the at least a part of which enables the see-through of the outdoor side and which is opened on the outdoor or indoor side, and an intermediate-door locking portion for locking the closing of the intermediate door 24. |
