Patent ID: 8029028

Claim:
A door lock device comprising: a latch mechanism that holds a vehicle door in a state closing a vehicle body, the latch mechanism being operated to be in a state allowing for the vehicle door to open the vehicle body when operation force from a passenger compartment or operation force from outside the passenger compartment is transmitted; a locking lever linked to the vehicle door and being switchable between an unlock position, a lock position, and a double lock position, the locking lever when arranged at the unlock position allowing the transmission of the operation force from the passenger compartment or the operation force from outside the passenger compartment to the latch mechanism, the locking lever when arranged at the lock position disabling transmission of the operation force from outside the passenger compartment to the latch mechanism and allowing the operation force from the passenger compartment to be applied to the locking lever thereby moving the locking lever to the unlock position, and the locking lever when arranged at the double lock position disabling transmission of the operation force from outside the passenger compartment to the latch mechanism and preventing movement of the locking lever to the unlock position or the lock position even when the operation force from the passenger compartment is applied to the locking lever; a double lock lever coupled to the locking lever and moved to a first position and a second position respectively corresponding to the unlock position and the lock position of the locking lever; an electrical drive source; a drive member linked to the vehicle door and including a first engagement portion engageable with the locking lever and a second engagement portion engageable with the double lock lever, the drive member being driven by the electrical drive source from a neutral position in a first direction and a second direction that is opposite to the first direction; and a return urging member that returns the drive member to the neutral position when the electrical drive source stops operating; wherein the drive member is formed to push the locking lever with the first engagement portion and move the locking lever to the lock position while restricting movement of the double lock lever to the second position when the drive member moves from the neutral position in the first direction in a state in which the locking lever is arranged at the unlock position, and the drive member is formed to disengage from the double lock lever when the drive member subsequently returns to the predetermined neutral position to allow the double lock lever to move to the second position and disengage the first engagement portion from the locking lever; and the drive member is formed to push the double lock lever, which is located at the second position, with the second engagement portion and move the locking lever to the double lock position when the drive member moves again in the first direction from the neutral position.