Door lock device for automobile

A lock device for an automobile door, said automobile having an engine starting circuit, a door frame and a door pivotally supported on the door frame, said device comprising:

• an operating plate supported on the door and movable between upper and lower positions;
• engaging means engageable with said operating plate and moveable between first and second positions such that when said engaging means is displaced from the first to the second position the operating plate is moved from the lower to the upper position, but when the operating plate is moved from the lower to the upper position the engaging means in the first position is disengaged therefrom and is not moved;
• actuating means for moving said engaging means from the first to the second position;
• a hook member provided in the door frame;
• latch means provided in the door and capable of engaging with said hook member when the door is closed and disengaged from said hook member when the door is opened;
• an engaging portion provided in said operating plate and engageable with said latch means to prevent said latch means from disengaging from said hook member when said operating plate is in the lower position and disengageable from said latch means to permit said latch means to disengage from said hook member when said operating plate is in the upper position;
• and
• means capable of detecting the position of said engaging means and electrically coupled to said engine starting circuit to make said engine starting circuit operable only upon detection of the movement of said engaging means from said first to said second position.