To improve airtightness between a door main body and an opening frame for the door.

This device is furnished with a door main body 1, an opening frame 2 for the door and a door stop member 8 formed in a series on a part where this door main body 1 is closed, and makes contact with the opening frame 2 for the door. Additionally, the door stop member 8 has a sectionally roughly L shaped base body 6, a bent part 7 diagonally extended upward from an upper end of this base body 6 is provided, and additionally, an elastic connecting piece 12 to connect respective middle parts of this bent part 7 and a horizontal part 9 of the same base body 6 to each other is provided.