| 摘要 |
PROBLEM TO BE SOLVED: To prevent one long turning arm for receiving two doors from unsightly extending out of a top frame of a door opening to the front even when the door is opened.SOLUTION: When a turning pilot arm (31) for door closing start detection is pushed down at door closing start of a late closing door (D2), a slide link bar (B) linearly slides in a presence direction (P) of the pilot arm (31) along a top frame (10) of a door opening. Thereby, a turning arm (47) for receiving door closing in a pivotally connected state with the slide link bar (B) extends forward, and once receives both doors (D1) and (D2) according to a closing order. The turning arm (47) still maintains a falling state until the pilot arm (31) is pushed down again, even if the pilot arm (31) extends forward, when the late closing door (D2) is opened. |
