Abstract: A keyhole is formed on an operating knob installed on the front surface of a rotary switch. The rotary switch can therefore be operated by inserting into the keyhole an electronic key having a long and narrow shape and then turning the operating knob. As a result, operations for an engine start using the electronic key are the same as those using a conventional key.

Abstract: An object of this invention is to provide a steering lock device of the type that a key rotor is coupled to the shift lever of an automatic transmission, which is reduced in size, thus occupying a relatively small space when installed. The steering lock device, an accommodating section, which accommodates a rotary member and a slider, is provided on the outer cylindrical surface of a housing in such a manner that it is located above the axis of the housing, and its longitudinal direction is in parallel with the direction of a tangent line to the outer cylindrical surface of the housing, whereby the accommodating section is not so much protruded from the sidewalls of the housing. The rotary member is turned about its shaft by a cam which is turned together with a key rotor. The slide is moved longitudinally of the accommodating section in association with the movement of the shift lever.