PURPOSE: To optionally change-over an electric key with the same mechanism to an automatic locking mode or a locking-unlocking repeated mode, by selectively arranging a change-over to positions interfering with a transfer trace of a latch bolt or not interfering with it.
CONSTITUTION: A latch bolt 2, a bolt manipulation member 8 fitted to a bolt 2 at the free end thereof, a stopper 12 connected to a controller 15, and a change-over lever 23 is provided so that an electro-magnetic driving device 17 and the edge of base are connected to the base plate 22 within a lock box 1 and an opening provided at the free end is fitted at a connection pin 21 of the controller 15. The change-over lever 23 is arranged to a locking-unlocking repeated mode position not interfering with the transfer trace of the latch bolt 2 by lifting up the base late 22 holding the change-over lever 23 along the rear plate of the lock box 1 and also to the automatic locking mode position interfering with the transfer trace by moving down it. In this way, both two modes can be changed over by the electric lock with the comma mechanism.
SECOM CO LTD