Door closure and lock for esp. fire doors has a lock box and a base plate which has a vertically moving strut which is fixed under different lock weights

摘要

The door closure and lock has a lock box (1) and a base plate (3) which has a vertically moving strut (4) which is fixed under different lock weights. The base plate is under the action of a spring with two actuating springs (6,7) and has a spring guiding pin (8,9) with a connecting strut (5). A connecting strut (10) has a rotating disc (11) connecting to it and a hook (13) and cam (12).