| 摘要 |
<p>A closure device for a door hung on a frame wherein the door is pivotable between a closed position and an open position. A lock is disposed on the door and a locking bolt assigned hereto is on the frame, behind which lockin g bolt the lock engages when the door is closed. In its functioning position, the bolt projects into the door frame aperture. The locking bolt is disposed on the frame to be moveable between its functioning position and a nonfunctioning position whic h leaves the frame aperture free.</p> |
