PROBLEM TO BE SOLVED: To provide a safety lock fitment for a closing device which can be opened, permits a large allowable error for installation and strengthens the closing device. SOLUTION: The safety lock fitment has an operating device 1 equipped with an actuator 4 guided in a transferable manner and a locking device 2. When the closing device closes, the actuator 4 can be pushed in to the locking device 2, and the actuator 4 can lock the locking device 2 by the linking surface which mutually linked via catch 16 which is electromagnetically operable and turnable. Actuator 4 has a trigger element 31 and the locking device 2 has a responding element 32. The catch 16 is turnable around a shaft extended in parallel to the transfer direction of the actuator 4, and the linking surfaces of the catch 16 and the actuator 4 are extended at a right angle with the transfer direction. COPYRIGHT: (C)2004,JPO&NCIPI