Double locking of a lift floor door

摘要

Double locking of a shaft door, comprising in the lock body 1 a first locking tongue 2 and a second locking tongue 3, a locking hook 4, provided with a locking prong 5, which in the first locking position extends over the first locking tongue and in the second locking position extends over the second locking tongue, and in the lock body a contactor 6 and in the locking hook a counter- piece 7 to the contactor for detecting the locking position of the locking hook in the first locking position. The first locking tongue 2 and the second locking tongue 3 interlock with the locking prong 5 of the locking hook 4 at essentially different angles of rotation of the locking hook. <IMAGE>