Summoning/consuming adjusting section airtight device null of the inside dynamic one pulling

摘要

PURPOSE:To keep the airtightness of a fitting part by attaching a fitting AT member in shiftable manner in the room inside/outside direction on the room inside of the fitting rail of an outer sliding door and installing a smoke turn-over to the room outside of the fitting rail of an inner sliding door so as to interfere with the room outside of the fitting AT member. CONSTITUTION:In the ordinary opening and closing, an AT member 48 is separated from a room outside plate 12a of a fitting rail 12 of an inner sliding door C and a smoke turn-over 40 of a fitting rail 6 of an outer sliding door B. Further, is the inner sliding door C is closed, the smoke turn-over 41 of the fitting rail 12 interferes with the guide piece 49 of a swing member 45, and when the inner sliding door C is closed, the fitting AT member 48 shifts to the side of the fitting rail 12. When the inner sliding door C is pulled to the room inside, the smoke turn-over 41 swings the swing member 45 to the room inside through the guide piece 49, and the fitting AT member 48 is pressed to the room outside plate 12a and the top edge part 40a of the smoke turn-over 40 of the fitting rail 6 for the outer sliding door B, and the part between the fitting rail 12 of the inner sliding door C and the fitting rail 6 of the outer sliding door B is kept airtight. Accordingly, even if the inner sliding door is pressed to the room inside by a wind pressure, the deterioration of the airtightness can be prevented.