Patent ID: 8151610

Claim:
A door latch device for a motor vehicle, comprising: an engagement section that engages with a striker of a vehicle body and has an opening lever for disengaging an engagement portion from the striker; a key lever operated with a key cylinder provided on an outside of the vehicle body; a locking lever moving between an unlocking position for validating operation of a handle to open a door and a locking position for invalidating the operation, the locking lever comprising a single lever pivotally mounted on a pivot shaft, the locking lever having teeth, a key-operation input portion coupled to the key lever and an operation transmitting portion; an interconnecting lever that can actuate the opening lever with the handle to disengage the engagement section from the striker, the interconnecting lever making it impossible to actuate the opening lever even with the handle to disengage the engagement section from the striker when the locking lever is in the locking position, the interconnecting lever comprising an elongate opening; and a motor having teeth on a rotational shaft, the teeth of the motor meshing with the teeth of the locking lever to move the locking lever to the unlocking position and the locking position, the operation transmitting portion of the locking lever engaging with the elongate opening of the interconnecting lever to allow rotation of the motor to be transmitted to the interconnecting lever via the locking lever.