PURPOSE: To simplify structure by placing key storage bodies into a plurality of latticed opening sections of a front panel, forwarding or retreating operating levers connected to the key storage bodies in the axial center directions of a vertical or horizontal motor by the motor and separately controlling the opening and closing of the key storage bodies.

CONSTITUTION: When a key K is extracted, whether a user is right or not is discriminated by a selector card etc. and a controller outpus of a driving signal to a selected motor 6 at the right time. The polarity of the motor 6 is charged, and an operating lever 19 is elongated. A key storage body 4 is rotated to the outside of a device 1 while using a horizontal shaft 11 as a supporting point, and the opening section 3 of the front panel 1 is opened while a timer bringing the storage body 4 to an open state for a fixed time is started. The user extracts the key K from the key hole 13 of the storage body 14, the controller transmits a signal after the completion of the timer, and the operating lever 19 is shrunk and the storage body 4 is returned to an original place. Accordingly, the number of parts can be decreased without using an electric lock, and operationability can be improved, and the depth of a device body can be shortened.