PURPOSE: To prevent a locker from becoming unusable due to the misoperation of an inexperienced customer by providing an actuator for a lever and a pressing lever for returning on a nonuse-time door impossible type locker lock device after the lapse of a prescribed time.

CONSTITUTION: A solenoid type actuator 46 for the lever operated for a prescribed time is attached to a sash frame 1 and one end of the pressing lever 47 pivotally attached to the sash frame 1 is pivotally attached to the mandrel 46a of the actuator 46. Thus, when the actuator 46 is operated, the pressing lever 47 is moved from a solid line position in the figure to a position 47' indicated by a chain line. A rotation preventing lever 11 is in the position for preventing the rotation of a rapid inversion lever rotated by a locking operation when the locker is not in use, is in the permitting position for permitting the rotation of the rapid inversion lever when a coin is fed and is returned to the preventing position when the coin falls. When the pressing lever 47 is in the position 47', however, the rotation preventing lever 11 is held in the permitting position by being pressed by the pressing lever 47 and the repetitive locking/ unlocking operation of a key is enabled for the prescribed time.