Door lock actuator unit

An actuator unit for shifting a lock lever of a vehicle door lock device between a locked position and an unlocked position, comprising:

• a housing containing a reversible motor;
• an inside lever disposed inside the housing and being shiftable by the reversible motor, said inside lever having a first shaft whose outer end extends through the housing and is connected to the lock lever substantially without any lost motion permitting a movement of the inside lever to be transmitted to the lock lever by way of the first shaft and vice versa;
• first detecting means provided inside the housing for detecting a position of the inside lever cooperatively connected to the lock lever;
• a key lever disposed inside the housing, said key lever having a second shaft whose outer end extends through the housing and is connected to a door key cylinder permitting a movement of the door key cylinder to be transmitted to the key lever by way of the second shaft;
• second detecting means provided inside the housing for detecting a position of the key lever cooperatively connected to the door key cylinder and for outputting a signal to operate the reversible motor in one of the operating directions;
• a plurality of conductive pieces each having a first end connected to at least one of the reversible motor, the first detecting means and the second detecting means;
• and
• a connector to which a second end of each of the conductive pieces is attached;
• wherein the first shaft and the second shaft are coaxial and separably rotatable relative to each other.